Navbar for ccm-admin

Former-commit-id: 7ca0385666

.gitignore

@@ -4,6 +4,7 @@ node
 node_modules
 runtime
 target
+.cache
 .classpath
 .factorypath
 .project

ccm-bundle-devel-wildfly/pom.xml

@@ -84,8 +84,8 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>1.8</source>
+                    <source>11</source>
-                    <target>1.8</target>
+                    <target>11</target>
                     <optimize>true</optimize>
                     <debug>true</debug>
                     <encoding>${project.build.sourceEncoding}</encoding>
@@ -107,7 +107,7 @@
                             <goal>install-node-and-npm</goal>
                         </goals>
                         <configuration>
-                            <nodeVersion>v8.11.4</nodeVersion>
+                            <nodeVersion>v12.18.3</nodeVersion>
                         </configuration>
                     </execution>
                     <!-- <execution>
@@ -244,6 +244,13 @@
                 <configuration>
                     <skip>false</skip>
                     <propertiesFile>${project.basedir}/wildfly.properties</propertiesFile>
+                    
+                    <env>
+                        <wicket.configuration>development</wicket.configuration>
+                    </env>
+                    <java-opts>
+                        <java-opt>-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=8787</java-opt>
+                    </java-opts>
                 </configuration>
             </plugin>
 

ccm-bundle-devel-wildfly/src/main/resources/log4j2.xml

@@ -86,6 +86,11 @@
         <Logger name="org.libreccm.ui.admin.usersgroupsroles.RolesController"
                 level="debug">
         </Logger>
+        <Logger 
+            name="org.libreccm.ui.admin.CcmAdmin"
+            level="debug"
+        >
+        </Logger>
         <Logger name="org.librecms.contentsection.AssetRepository"
                 level="debug">
         </Logger>

ccm-core/package.json

@@ -0,0 +1,24 @@
+{
+    "name": "ccm-core",
+    "version": "7.0.0",
+    "description": "JavaScript stuff for ccm-core",
+    "main": "index.js",
+    "scripts": {
+        "build": "npm-run-all build:*:*",
+        "build:ccm-admin:js": "parcel build --out-dir target/generated-resources/org/libreccm/ui/admin src/main/typescript/ccm-admin/ccm-admin.ts",
+        "build:ccm-admin:css": "sass src/main/scss/ccm-admin/ccm-admin.scss target/generated-resources/org/libreccm/ui/admin/ccm-admin.css"
+    },
+    "author": "Jens Pelzetter",
+    "license": "LGPL-3.0-or-later",
+    "devDependencies": {
+        "npm-run-all": "^4.1.5",
+        "parcel-bundler": "^1.12.4",
+        "sass": "^1.26.10",
+        "typescript": "^4.0.2"
+    },
+    "dependencies": {
+        "bootstrap": "^4.5.2",
+        "jquery": "^3.5.1",
+        "popper.js": "^1.16.1"
+    }
+}

ccm-core/pom.xml

@@ -250,6 +250,15 @@
             <artifactId>Saxon-HE</artifactId>
         </dependency>
         
+        <dependency>
+            <groupId>org.apache.wicket</groupId>
+            <artifactId>wicket-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.wicket</groupId>
+            <artifactId>wicket-cdi</artifactId>
+        </dependency>
+        
         <!-- Export Import Libraries -->
 
         <dependency>
@@ -292,6 +301,9 @@
                 <directory>src/main/resources</directory>
                 <filtering>true</filtering>
             </resource>
+            <resource>
+                <directory>./target/generated-resources</directory>
+            </resource>
         </resources>
         
         <testResources>
@@ -315,6 +327,40 @@
                     <encoding>${project.build.sourceEncoding}</encoding>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>com.github.eirslett</groupId>
+                <artifactId>frontend-maven-plugin</artifactId>
+                <configuration>
+                    <installDirectory>../node</installDirectory>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>Install node.js and NPM</id>
+                        <goals>
+                            <goal>install-node-and-npm</goal>
+                        </goals>
+                        <configuration>
+                            <nodeVersion>v12.18.3</nodeVersion>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>npm install</id>
+                        <goals>
+                            <goal>npm</goal>
+                        </goals>
+                    </execution>
+                    <execution>
+                        <id>build</id>
+                        <goals>
+                            <goal>npm</goal>
+                        </goals>
+                        <configuration>
+                            <arguments>run build</arguments>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+            
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
@@ -381,7 +427,7 @@
     </build>
     
     <reporting>
-        <plugins>
+        <plugins>            
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
@@ -416,6 +462,7 @@
                     <!--<additionalparam>-Xdoclint:none</additionalparam>-->
                 </configuration>
             </plugin>
+            
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-jxr-plugin</artifactId>

ccm-core/src/main/java/org/libreccm/ui/CcmAdminFilter.java

@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui;
+
+import org.apache.wicket.protocol.http.WicketFilter;
+import org.libreccm.core.CoreConstants;
+import org.libreccm.security.PermissionChecker;
+import org.libreccm.security.Shiro;
+
+import java.io.IOException;
+
+import javax.inject.Inject;
+import javax.servlet.FilterChain;
+import javax.servlet.ServletContext;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.servlet.annotation.WebFilter;
+import javax.servlet.annotation.WebInitParam;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@WebFilter(
+    value = "/@admin/*",
+    initParams = {
+        @WebInitParam(
+            name = "applicationClassName",
+            value = "org.libreccm.ui.admin.CcmAdmin"
+        ),
+        @WebInitParam(name = "filterMappingUrlPattern", value = "/@admin/*")
+    }
+)
+public class CcmAdminFilter extends WicketFilter {
+
+    @Inject
+    private Shiro shiro;
+
+    @Inject
+    private PermissionChecker permissionChecker;
+
+    @Inject
+    private ServletContext servletContext;
+
+    @Override
+    public void doFilter(
+        final ServletRequest request,
+        final ServletResponse response,
+        final FilterChain chain
+    ) throws IOException, ServletException {
+        if (permissionChecker.isPermitted(CoreConstants.PRIVILEGE_ADMIN)) {
+            super.doFilter(request, response, chain);
+        } else if (shiro.getSubject().isAuthenticated()) {
+            final HttpServletResponse httpResponse
+                = (HttpServletResponse) response;
+            httpResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED);
+        } else {
+            final HttpServletRequest httpRequest = (HttpServletRequest) request;
+            final HttpServletResponse httpResponse
+                = (HttpServletResponse) response;
+            
+            final String returnUrl = String.format(
+                "%s%s",
+                httpRequest.getContextPath(),
+                httpRequest.getServletPath()
+            );
+
+            httpResponse.sendRedirect(
+                String.format(
+                    "%s/ccm/register?return_url=%s",
+                    servletContext.getContextPath(),
+                    returnUrl
+                )
+            );
+        }
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/MissingPageDataException.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+
+package org.libreccm.ui;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class MissingPageDataException extends RuntimeException {
+
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * Creates a new instance of <code>MissingPageDataException</code> without detail message.
+     */
+    public MissingPageDataException() {
+        super();
+    }
+
+
+    /**
+     * Constructs an instance of <code>MissingPageDataException</code> with the specified detail message.
+     *
+     * @param msg The detail message.
+     */
+    public MissingPageDataException(final String msg) {
+        super(msg);
+    }
+
+    /**
+      * Constructs an instance of <code>MissingPageDataException</code> which wraps the 
+      * specified exception.
+      *
+      * @param exception The exception to wrap.
+      */
+    public MissingPageDataException(final Exception exception) {
+        super(exception);
+    }
+
+    /**
+      * Constructs an instance of <code>MissingPageDataException</code> with the specified message which also wraps the 
+      * specified exception.
+      *
+      * @param msg The detail message.
+      * @param exception The exception to wrap.
+      */
+    public MissingPageDataException(final String msg, final Exception exception) {
+        super(msg, exception);
+    }
+}

ccm-core/src/main/java/org/libreccm/ui/admin/AdminConstants.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class AdminConstants {
+    
+    private AdminConstants() {
+        // Nothing
+    }
+    
+    public static final String ADMIN_BUNDLE = "org.libreccm.ui.admin.AdminBundle";
+    
+}

ccm-core/src/main/java/org/libreccm/ui/admin/AdminPage.java

@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import org.apache.wicket.markup.head.CssHeaderItem;
+import org.apache.wicket.markup.head.IHeaderResponse;
+import org.apache.wicket.markup.head.JavaScriptHeaderItem;
+import org.apache.wicket.markup.head.filter.HeaderResponseContainer;
+import org.apache.wicket.markup.html.WebPage;
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.repeater.RepeatingView;
+import org.apache.wicket.request.resource.PackageResourceReference;
+import org.libreccm.ui.bootstrap.NavItem;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import javax.enterprise.inject.Instance;
+import javax.inject.Inject;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class AdminPage extends WebPage {
+
+    private static final long serialVersionUID = 1L;
+
+    @Inject
+    private Instance<AdminPagesProvider> adminPages;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public AdminPage() {
+        super();
+
+        add(
+            new HeaderResponseContainer(
+                "scripts-container", "scripts-container"
+            )
+        );
+
+        final List<AdminPageData> adminPagesData = adminPages
+            .stream()
+            .map(AdminPagesProvider::getAdminPagesData)
+            .flatMap(Collection::stream)
+            .filter(page -> page.getGroup().equals(""))
+            .sorted(
+                (page1, page2) -> Integer.compare(
+                    page1.getPosition(), page2.getPosition()
+                )
+            )
+            .collect(Collectors.toList());
+
+        final RepeatingView adminPagesView = new RepeatingView("admin-pages");
+        for (final AdminPageData adminPageData : adminPagesData) {
+            final NavItem navItem = new NavItem(
+                adminPagesView.newChildId(),
+                adminPageData.getLabel(),
+                adminPageData.getPageClass()
+            );
+            navItem.setRenderBodyOnly(true);
+            adminPagesView.add(navItem);
+        }
+        add(adminPagesView);
+    }
+
+    @Override
+    public void renderHead(final IHeaderResponse response) {
+        response.render(
+            CssHeaderItem.forReference(
+                new PackageResourceReference(AdminPage.class, "ccm-admin.css")
+            )
+        );
+        response.render(
+            JavaScriptHeaderItem.forReference(
+                new PackageResourceReference(AdminPage.class, "ccm-admin.js")
+            )
+        );
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/AdminPageData.java

@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import java.util.Objects;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class AdminPageData {
+
+    private final String path;
+
+    private final Class<? extends AdminPage> pageClass;
+
+    private final String group;
+
+    private final int position;
+
+    private final String label;
+
+    private final String description;
+
+    AdminPageData(
+        final String path,
+        final Class<? extends AdminPage> pageClass,
+        final String group,
+        final int position,
+        final String label,
+        final String description
+    ) {
+        this.path = path;
+        this.pageClass = pageClass;
+        this.group = group;
+        this.position = position;
+        this.label = label;
+        this.description = description;
+    }
+
+    public String getPath() {
+        return path;
+    }
+
+    public Class<? extends AdminPage> getPageClass() {
+        return pageClass;
+    }
+
+    public String getGroup() {
+        return group;
+    }
+
+    public int getPosition() {
+        return position;
+    }
+
+    public String getLabel() {
+        return label;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    @Override
+    public int hashCode() {
+        int hash = 3;
+        hash = 59 * hash + Objects.hashCode(path);
+        hash = 59 * hash + Objects.hashCode(pageClass);
+        hash = 59 * hash + Objects.hashCode(group);
+        hash = 59 * hash + position;
+        hash = 59 * hash + Objects.hashCode(label);
+        hash = 59 * hash + Objects.hashCode(description);
+        return hash;
+    }
+
+    @Override
+    public boolean equals(final Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null) {
+            return false;
+        }
+        if ((obj instanceof AdminPageData)) {
+            return false;
+        }
+        final AdminPageData other = (AdminPageData) obj;
+        if (other.canEqual(this)) {
+            return false;
+        }
+        if (!Objects.equals(path, other.getPath())) {
+            return false;
+        }
+        if (!Objects.equals(pageClass, other.getPageClass())) {
+            return false;
+        }
+        if (!Objects.equals(group, other.getGroup())) {
+            return false;
+        }
+        if (position != other.getPosition()) {
+            return false;
+        }
+        if (!Objects.equals(label, other.getLabel())) {
+            return false;
+        }
+        return Objects.equals(description, other.getDescription());
+    }
+
+    public boolean canEqual(final Object obj) {
+        return obj instanceof AdminPageData;
+    }
+
+    @Override
+    public final String toString() {
+        return toString("");
+    }
+
+    public String toString(final String data) {
+        return String.format(
+            "%s{"
+                + "path = %s, "
+                + "pageClass = %s, "
+                + "group = %s, "
+                + "order = %d, "
+                + "label = %s, "
+                + "description = %s%s"
+                + "}",
+            super.toString(),
+            path,
+            pageClass.getName(),
+            group,
+            position,
+            label,
+            description,
+            data
+        );
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/AdminPageDescriptor.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@Retention(RetentionPolicy.RUNTIME)
+public @interface AdminPageDescriptor {
+    
+    String path();
+    
+    int position();
+    
+    Class<? extends AdminPage> subPageOf() default AdminPage.class;
+    
+    String labelBundle();
+    
+    String labelKey();
+    
+    String descriptionBundle();
+    
+    String descriptionKey();
+    
+}

ccm-core/src/main/java/org/libreccm/ui/admin/AdminPagesProvider.java

@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.libreccm.l10n.GlobalizationHelper;
+
+import java.util.MissingResourceException;
+import java.util.ResourceBundle;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import javax.inject.Inject;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public abstract class AdminPagesProvider {
+
+    private static final Logger LOGGER = LogManager.getLogger(
+        AdminPagesProvider.class
+    );
+
+    @Inject
+    private GlobalizationHelper globalizationHelper;
+
+    public abstract Set<Class<? extends AdminPage>> getClasses();
+
+    protected Set<AdminPageData> getAdminPagesData() {
+        return getClasses()
+            .stream()
+            .map(this::buildAdminPageData)
+            .collect(Collectors.toSet());
+    }
+
+    private AdminPageData buildAdminPageData(
+        final Class<? extends AdminPage> clazz
+    ) {
+        final AdminPageDescriptor descriptor = clazz.getAnnotation(
+            AdminPageDescriptor.class
+        );
+        final String path = buildPath(descriptor);
+        final int position = descriptor.position();
+        final String labelBundle = descriptor.labelBundle();
+        final String labelKey = descriptor.labelKey();
+        final String descriptionBundle = descriptor.descriptionBundle();
+        final String descriptionKey = descriptor.descriptionKey();
+        final String group;
+        if (descriptor.subPageOf().equals(AdminPage.class)) {
+            group = "";
+        } else {
+            final AdminPageDescriptor parentDescriptor = descriptor
+                .subPageOf()
+                .getAnnotation(AdminPageDescriptor.class);
+            if (parentDescriptor == null) {
+                throw new IllegalArgumentException(
+                    String.format(
+                        "Parent page class %s of page class %s has no "
+                            + "AdminPageDescriptor annotation.",
+                        descriptor.subPageOf().getName(),
+                        clazz.getName())
+                );
+            }
+            group = parentDescriptor.path();
+        }
+
+        final AdminPageData data = new AdminPageData(
+            path,
+            clazz,
+            group,
+            position,
+            findString(labelBundle, labelKey),
+            findString(descriptionBundle, descriptionKey)
+        );
+
+        return data;
+    }
+
+    private String findString(final String bundleName, final String key) {
+        final ResourceBundle bundle;
+        try {
+            bundle = ResourceBundle.getBundle(
+                bundleName, globalizationHelper.getNegotiatedLocale()
+            );
+        } catch (MissingResourceException ex) {
+            LOGGER.warn("Resource Bundle {} not found.", bundleName);
+            LOGGER.warn(ex);
+            return key;
+        }
+
+        try {
+            return bundle.getString(key);
+        } catch (MissingResourceException ex) {
+            LOGGER.warn("Key {} not found.", key);
+            return key;
+        }
+    }
+
+    private String buildPath(final AdminPageDescriptor descriptor) {
+        if (descriptor.subPageOf().equals(AdminPage.class)) {
+            return descriptor.path();
+        } else {
+            final Class<? extends AdminPage> parent = descriptor.subPageOf();
+            final AdminPageDescriptor parentDescriptor = parent.getAnnotation(
+                AdminPageDescriptor.class
+            );
+            if (parentDescriptor == null) {
+                throw new IllegalArgumentException(
+                    String.format(
+                        "Parent page class %s of page class %s has no "
+                            + "AdminPageDescriptor annotation.",
+                        descriptor.subPageOf().getName(),
+                        parent.getName())
+                );
+            }
+
+            return String.join(
+                "/",
+                buildPath(parentDescriptor),
+                descriptor.path()
+            );
+            
+        }
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/ApplicationsPage.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import org.libreccm.ui.admin.applications.ApplicationsPanel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@AdminPageDescriptor(
+    path = "applications",
+    position = 10,
+    labelBundle = AdminConstants.ADMIN_BUNDLE,
+    labelKey = "applications.label",
+    descriptionBundle = AdminConstants.ADMIN_BUNDLE,
+    descriptionKey = "applications.description"
+)
+public class ApplicationsPage extends AdminPage {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public ApplicationsPage() {
+        super();
+        add(new ApplicationsPanel("adminPanel"));
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/CategoriesPage.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import org.libreccm.ui.admin.categories.CategoriesPanel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@AdminPageDescriptor(
+    path = "categories",
+    position = 20,
+    labelBundle = AdminConstants.ADMIN_BUNDLE,
+    labelKey = "categories.label",
+    descriptionBundle = AdminConstants.ADMIN_BUNDLE,
+    descriptionKey = "categories.description"
+)
+public class CategoriesPage extends AdminPage {
+
+    private static final long serialVersionUID = 1L;
+    
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public CategoriesPage() {
+        super();
+        add(new CategoriesPanel("adminPanel"));
+    }
+    
+}

ccm-core/src/main/java/org/libreccm/ui/admin/CcmAdmin.java

@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.apache.wicket.cdi.CdiConfiguration;
+import org.apache.wicket.markup.head.filter.JavaScriptFilteredIntoFooterHeaderResponse;
+import org.apache.wicket.markup.html.WebPage;
+import org.apache.wicket.protocol.http.WebApplication;
+import org.libreccm.l10n.GlobalizationHelper;
+
+import java.util.Collection;
+import java.util.MissingResourceException;
+import java.util.ResourceBundle;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import javax.enterprise.inject.Instance;
+import javax.inject.Inject;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class CcmAdmin extends WebApplication {
+
+    private static final Logger LOGGER = LogManager.getLogger(CcmAdmin.class);
+
+    @Inject
+    private Instance<AdminPagesProvider> adminPages;
+
+    @Override
+    public Class<? extends WebPage> getHomePage() {
+        return DashboardPage.class;
+    }
+
+    @Override
+    public void init() {
+        super.init();
+//        setConfigurationType(RuntimeConfigurationType.DEPLOYMENT);
+
+        final CdiConfiguration cdiConfiguration = new CdiConfiguration();
+        cdiConfiguration.configure(this);
+
+        getCspSettings().blocking().disabled();
+        getMarkupSettings().setStripWicketTags(true);
+
+        getHeaderResponseDecorators().add(
+            response -> new JavaScriptFilteredIntoFooterHeaderResponse(
+                response, "scripts-container"
+            ));
+
+        final Set<AdminPageData> adminPagesData = adminPages
+            .stream()
+            .map(AdminPagesProvider::getAdminPagesData)
+            .flatMap(Collection::stream)
+            .collect(Collectors.toSet());
+
+        for (final AdminPageData adminPageData : adminPagesData) {
+            LOGGER.debug(
+                "Mounting page {} to path {}",
+                adminPageData.getPageClass().getName(),
+                adminPageData.getPath()
+            );
+            mountPage(adminPageData.getPath(), adminPageData.getPageClass());
+        }
+
+//        mountPage("applications", ApplicationsPage.class);
+//        mountPage("categories", CategoriesPage.class);
+//        mountPage("configuration", ConfigurationPage.class);
+//        mountPage("imexport", ImExportPage.class);
+//        mountPage("pagemodels", PageModelsPage.class);
+//        mountPage("sites", SitesPage.class);
+//        mountPage("systeminformation", SystemInformationPage.class);
+//        mountPage("users-groups-roles/groups", GroupsPage.class);
+//        mountPage("users-groups-roles/roles", RolesPage.class);
+//        mountPage("users-groups-roles/users", UsersPage.class);
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/CcmCoreAdminPages.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import org.libreccm.ui.admin.usersgroupsroles.GroupsPage;
+import org.libreccm.ui.admin.usersgroupsroles.RolesPage;
+import org.libreccm.ui.admin.usersgroupsroles.UsersPage;
+
+import java.util.Set;
+
+import javax.enterprise.context.ApplicationScoped;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@ApplicationScoped
+public class CcmCoreAdminPages extends AdminPagesProvider {
+
+    @Override
+    public Set<Class<? extends AdminPage>> getClasses() {
+        return Set.of(
+            ApplicationsPage.class,
+            CategoriesPage.class,
+            ConfigurationPage.class,
+            ImExportPage.class,
+            PageModelsPage.class,
+            SitesPage.class,
+            SystemInformationPage.class,
+            UsersGroupsRolesPage.class,
+            GroupsPage.class,
+            RolesPage.class,
+            UsersPage.class
+        );
+    }
+}

ccm-core/src/main/java/org/libreccm/ui/admin/ConfigurationPage.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import org.libreccm.ui.admin.configuration.ConfigurationPanel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@AdminPageDescriptor(
+    path = "configuration",
+    position = 30,
+    labelBundle = AdminConstants.ADMIN_BUNDLE,
+    labelKey = "configuration.label",
+    descriptionBundle = AdminConstants.ADMIN_BUNDLE,
+    descriptionKey = "configuration.description"
+)
+public class ConfigurationPage extends AdminPage {
+
+    private static final long serialVersionUID = 1L;
+    
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public ConfigurationPage() {
+        super();
+        add(new ConfigurationPanel("adminPanel"));
+    }
+    
+}

ccm-core/src/main/java/org/libreccm/ui/admin/DashboardPage.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import org.libreccm.ui.admin.dashboard.DashboardPanel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class DashboardPage extends AdminPage {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public DashboardPage() {
+        super();
+//        add(new Label("dashboardLabel", "CCM Admin Dashboard"));
+        add(new DashboardPanel("adminPanel"));
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/ImExportPage.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import org.libreccm.ui.admin.imexport.ImExportPanel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@AdminPageDescriptor(
+    path = "imexport",
+    position = 40,
+    labelBundle = AdminConstants.ADMIN_BUNDLE,
+    labelKey = "imexport.label",
+    descriptionBundle = AdminConstants.ADMIN_BUNDLE,
+    descriptionKey = "imexport.description"
+)
+public class ImExportPage extends AdminPage {
+
+    private static final long serialVersionUID = 1L;
+    
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public ImExportPage() {
+        super();
+        add(new ImExportPanel("adminPanel"));
+    }
+    
+}

ccm-core/src/main/java/org/libreccm/ui/admin/PageModelsPage.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import org.libreccm.ui.admin.pagemodels.PageModelsPanel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@AdminPageDescriptor(
+    path = "pagemodels",
+    position = 50,
+    labelBundle = AdminConstants.ADMIN_BUNDLE,
+    labelKey = "pagemodels.label",
+    descriptionBundle = AdminConstants.ADMIN_BUNDLE,
+    descriptionKey = "pagemodels.description"
+)
+public class PageModelsPage extends AdminPage {
+
+    private static final long serialVersionUID = 1L;
+    
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public PageModelsPage() {
+        super();
+        add(new PageModelsPanel("adminPanel"));
+    }
+    
+}

ccm-core/src/main/java/org/libreccm/ui/admin/SitesPage.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import org.libreccm.ui.admin.sites.SitesPanel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@AdminPageDescriptor(
+    path = "sites",
+    position = 60,
+    labelBundle = AdminConstants.ADMIN_BUNDLE,
+    labelKey = "sites.label",
+    descriptionBundle = AdminConstants.ADMIN_BUNDLE,
+    descriptionKey = "sites.description"
+)
+public class SitesPage extends AdminPage {
+
+    private static final long serialVersionUID = 1L;
+    
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public SitesPage() {
+        super();
+        add(new SitesPanel("adminPanel"));
+    }
+    
+}

ccm-core/src/main/java/org/libreccm/ui/admin/SystemInformationPage.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import org.libreccm.ui.admin.systeminformation.SystemInformationPanel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@AdminPageDescriptor(
+    path = "systeminformation",
+    position = 70,
+    labelBundle = AdminConstants.ADMIN_BUNDLE,
+    labelKey = "systeminformation.label",
+    descriptionBundle = AdminConstants.ADMIN_BUNDLE,
+    descriptionKey = "systeminformation.description"
+)
+public class SystemInformationPage extends AdminPage {
+
+    private static final long serialVersionUID = 1L;
+    
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public SystemInformationPage() {
+        super();
+        add(new SystemInformationPanel("adminPanel"));
+    }
+    
+}

ccm-core/src/main/java/org/libreccm/ui/admin/UsersGroupsRolesPage.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin;
+
+import org.libreccm.ui.admin.usersgroupsroles.UsersGroupsRolesPanel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@AdminPageDescriptor(
+    path = "users-groups-roles",
+    position = 80,
+    labelBundle = AdminConstants.ADMIN_BUNDLE,
+    labelKey = "usersGroupsRoles.label",
+    descriptionBundle = AdminConstants.ADMIN_BUNDLE,
+    descriptionKey = "usersGroupsRoles.description"
+)
+public class UsersGroupsRolesPage extends AdminPage {
+
+    private static final long serialVersionUID = 1L;
+    
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public UsersGroupsRolesPage() {
+        super();
+        add(new UsersGroupsRolesPanel("adminPanel"));
+    }
+    
+}

ccm-core/src/main/java/org/libreccm/ui/admin/applications/ApplicationsPanel.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.applications;
+
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.panel.Panel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class ApplicationsPanel extends Panel {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public ApplicationsPanel(final String id) {
+        super(id);
+        add(new Label("applicationsLabel", "Applications Placeholder"));
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/categories/CategoriesPanel.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.categories;
+
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.panel.Panel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class CategoriesPanel extends Panel {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public CategoriesPanel(final String id) {
+        super(id);
+        add(new Label("categoriesLabel", "Categories Placeholder"));
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/configuration/ConfigurationPanel.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.configuration;
+
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.panel.Panel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class ConfigurationPanel extends Panel {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public ConfigurationPanel(final String id) {
+        super(id);
+        add(new Label("configurationLabel", "Configuration Placeholder"));
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/dashboard/DashboardPanel.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.dashboard;
+
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.panel.Panel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class DashboardPanel extends Panel {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public DashboardPanel(String id) {
+        super(id);
+        add(new Label("dashboardLabel", "CCM Admin Dashboard"));
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/imexport/ImExportPanel.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.imexport;
+
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.panel.Panel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class ImExportPanel extends Panel {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public ImExportPanel(final String id) {
+        super(id);
+        add(new Label("imexportLabel", "Import/Export Placeholder"));
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/pagemodels/PageModelsPanel.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.pagemodels;
+
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.panel.Panel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class PageModelsPanel extends Panel {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public PageModelsPanel(final String id) {
+        super(id);
+        add(new Label("pageModelsLabel", "PageModel Placeholder"));
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/sites/SitesPanel.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.sites;
+
+import org.libreccm.ui.admin.configuration.*;
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.panel.Panel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class SitesPanel extends Panel {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public SitesPanel(final String id) {
+        super(id);
+        add(new Label("sitesLabel", "Sites Placeholder"));
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/systeminformation/SystemInformationPanel.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.systeminformation;
+
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.panel.Panel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class SystemInformationPanel extends Panel {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public SystemInformationPanel(final String id) {
+        super(id);
+        add(new Label("systemInformationLabel", "Systeminformation Placeholder"));
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/usersgroupsroles/GroupsPage.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.usersgroupsroles;
+
+import org.libreccm.ui.admin.AdminConstants;
+import org.libreccm.ui.admin.AdminPage;
+import org.libreccm.ui.admin.AdminPageDescriptor;
+import org.libreccm.ui.admin.UsersGroupsRolesPage;
+import org.libreccm.ui.admin.usersgroupsroles.groups.GroupsPanel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@AdminPageDescriptor(
+    path = "groups",
+    position = 20,
+    subPageOf = UsersGroupsRolesPage.class,
+    labelBundle = AdminConstants.ADMIN_BUNDLE,
+    labelKey = "usersGroupsRoles.groups.label",
+    descriptionBundle = AdminConstants.ADMIN_BUNDLE,
+    descriptionKey = "usersGroupsRoles.groups.description"
+)
+public class GroupsPage extends AdminPage {
+
+    private static final long serialVersionUID = 1L;
+    
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public GroupsPage() {
+        add(new GroupsPanel("adminPanel"));
+    }
+    
+}

ccm-core/src/main/java/org/libreccm/ui/admin/usersgroupsroles/RolesPage.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.usersgroupsroles;
+
+import org.libreccm.ui.admin.AdminConstants;
+import org.libreccm.ui.admin.AdminPage;
+import org.libreccm.ui.admin.AdminPageDescriptor;
+import org.libreccm.ui.admin.UsersGroupsRolesPage;
+import org.libreccm.ui.admin.usersgroupsroles.roles.RolesPanel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@AdminPageDescriptor(
+    path = "roles",
+    position = 30,
+    subPageOf = UsersGroupsRolesPage.class,
+    labelBundle = AdminConstants.ADMIN_BUNDLE,
+    labelKey = "usersGroupsRoles.roles.label",
+    descriptionBundle = AdminConstants.ADMIN_BUNDLE,
+    descriptionKey = "usersGroupsRoles.roles.description"
+)
+
+public class RolesPage extends AdminPage {
+
+    private static final long serialVersionUID = 1L;
+    
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public RolesPage() {
+        add(new RolesPanel("adminPanel"));
+    }
+    
+}

ccm-core/src/main/java/org/libreccm/ui/admin/usersgroupsroles/UsersGroupsRolesPanel.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.usersgroupsroles;
+
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.panel.Panel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class UsersGroupsRolesPanel extends Panel {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public UsersGroupsRolesPanel(final String id) {
+        super(id);
+        add(new Label("usersGroupsRolesLabel", "Users/Groups/Roles Placeholder"));
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/usersgroupsroles/UsersPage.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.usersgroupsroles;
+
+import org.libreccm.ui.admin.AdminConstants;
+import org.libreccm.ui.admin.AdminPage;
+import org.libreccm.ui.admin.AdminPageDescriptor;
+import org.libreccm.ui.admin.UsersGroupsRolesPage;
+import org.libreccm.ui.admin.usersgroupsroles.users.UsersPanel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@AdminPageDescriptor(
+    path = "users",
+    position = 10,
+    subPageOf = UsersGroupsRolesPage.class,
+    labelBundle = AdminConstants.ADMIN_BUNDLE,
+    labelKey = "usersGroupsRoles.users.label",
+    descriptionBundle = AdminConstants.ADMIN_BUNDLE,
+    descriptionKey = "usersGroupsRoles.users.description"
+)
+
+public class UsersPage extends AdminPage {
+
+    private static final long serialVersionUID = 1L;
+    
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public UsersPage() {
+        add(new UsersPanel("adminPanel"));
+    }
+    
+}

ccm-core/src/main/java/org/libreccm/ui/admin/usersgroupsroles/groups/GroupsPanel.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.usersgroupsroles.groups;
+
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.panel.Panel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class GroupsPanel extends Panel {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public GroupsPanel(final String id) {
+        super(id);
+        add(new Label("groupsLabel", "Groups Placeholder"));
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/usersgroupsroles/roles/RolesPanel.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.usersgroupsroles.roles;
+
+import org.libreccm.ui.admin.configuration.*;
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.panel.Panel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class RolesPanel extends Panel {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public RolesPanel(final String id) {
+        super(id);
+        add(new Label("rolesLabel", "Roles Placeholder"));
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/admin/usersgroupsroles/users/UsersPanel.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.admin.usersgroupsroles.users;
+
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.panel.Panel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class UsersPanel extends Panel {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public UsersPanel(final String id) {
+        super(id);
+        add(new Label("usersLabel", "Users Placeholder"));
+    }
+
+}

ccm-core/src/main/java/org/libreccm/ui/bootstrap/NavItem.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2020 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui.bootstrap;
+
+import org.apache.wicket.markup.html.WebPage;
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.link.Link;
+import org.apache.wicket.markup.html.panel.Panel;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class NavItem extends Panel {
+
+    private static final long serialVersionUID = 1L;
+
+    @SuppressWarnings("OverridableMethodCallInConstructor")
+    public NavItem(
+        final String id,
+        final String label,
+        final Class<? extends WebPage> targetPage
+    ) {
+        super(id);
+
+        final Link<Void> link = new Link<Void>("link") {
+
+            @Override
+            public void onClick() {
+                setResponsePage(targetPage);
+            }
+
+        };
+        link.add(new Label("link-label", label));
+        add(link);
+    }
+
+}

ccm-core/src/main/resources/org/libreccm/ui/admin/AdminBundle.properties

@@ -0,0 +1,41 @@
+# Copyright (C) 2020 LibreCCM Foundation.
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301  USA
+
+applications.label=Applications
+applications.description=Manage application instances
+categories.label=Categories
+categories.description=Manage categories
+configuration.label=Configuration
+configuration.description=Manage settings
+dashboard.label=Dashboard
+dashboard.description=Provides an overview of all available admin pages
+imexport.label=Export/Import
+imexport.description=Export and import entities
+pagemodels.label=Page Models
+pagemodels.description=Manage page models
+sites.label=Sites
+sites.description=Manage sites
+usersGroupsRoles.label=Users/Groups/Roles
+usersGroupsRoles.description=Manage users, groups and roles
+usersGroupsRoles.groups.label=Groups
+usersGroupsRoles.groups.description=Manage groups
+usersGroupsRoles.roles.label=Roles
+usersGroupsRoles.roles.description=Manage roles
+usersGroupsRoles.users.label=Users
+usersGroupsRoles.users.description=Manage users
+systeminformation.label=System Information
+systeminformation.description=Shows several informations about this CCM instance and its environment

ccm-core/src/main/resources/org/libreccm/ui/admin/AdminBundle_de.properties

@@ -0,0 +1,41 @@
+# Copyright (C) 2020 LibreCCM Foundation.
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301  USA
+
+applications.label=Applikationen
+applications.description=Verwalten der Instanzen der Applikationen
+categories.label=Kategorien
+categories.description=Verwaltung der Kategorien
+configuration.label=Konfiguration
+configuration.description=Konfiguration bearbeiten
+dashboard.label=Dashboard
+dashboard.description=\u00dcberblick \u00fcber alle Administrations-Seiten
+imexport.label=Export/Import
+imexport.description=Daten exportieren und importieren
+pagemodels.label=Page Models
+pagemodels.description=Verwalten der Page Models
+sites.label=Sites
+sites.description=Verwalten der Sites
+usersGroupsRoles.label=Benutzer*innen/Gruppen/Rollen
+usersGroupsRoles.description=Benutzer*innen, Gruppen und Rollen verwalten
+usersGroupsRoles.groups.label=Gruppen
+usersGroupsRoles.groups.description=Gruppen verwalten
+usersGroupsRoles.roles.label=Rollen
+usersGroupsRoles.roles.description=Rollen verwalten
+usersGroupsRoles.users.label=Benutzer*innen
+usersGroupsRoles.users.description=Benutzer*innen verwalten
+systeminformation.label=System Information
+systeminformation.description=Zeigt verschiedene Informationen \u00fcber diese CCM Instanz und ihre Umgebung

ccm-core/src/main/resources/org/libreccm/ui/admin/AdminPage.html

@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+        <title>LibreCCM Admin</title>
+    </head>
+    <body>
+        <nav class="navbar navbar-expand-lg navbar-light bg-primary">
+            <a class="navbar-brand" href="#">Navbar</a>
+            <button
+                class="navbar-toggler"
+                type="button"
+                data-toggle="collapse"
+                data-target="#navbarSupportedContent"
+                aria-controls="navbarSupportedContent"
+                aria-expanded="false"
+                aria-label="Toggle navigation"
+            >
+                <span class="navbar-toggler-icon"></span>
+            </button>
+
+            <div class="collapse navbar-collapse" id="navbarSupportedContent">
+                <ul class="navbar-nav mr-auto">
+                    <li class="nav-item" wicket:id="admin-pages"></li>
+                </ul>
+            </div>
+        </nav>
+        <div class="container">
+            <div wicket:id="adminPanel">[admin panel]</div>
+        </div>
+        <wicket:container wicket:id="scripts-container"></wicket:container>
+    </body>
+</html>

ccm-core/src/main/resources/org/libreccm/ui/admin/OffDashboardPage.html

@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+        <title>Dashboard - LibreCCM Admin</title>
+    </head>
+    <body>
+        <div wicket:id="dashboardLabel">
+            [Label's message goes here]
+        </div>
+    </body>
+</html>
+
+

ccm-core/src/main/resources/org/libreccm/ui/admin/applications/ApplicationsPanel.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <wicket:panel>
+            <div wicket:id="applicationsLabel">
+                [Label's message goes here]
+            </div>
+        </wicket:panel>
+    </body>
+</html>

ccm-core/src/main/resources/org/libreccm/ui/admin/categories/CategoriesPanel.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <wicket:panel>
+            <div wicket:id="categoriesLabel">
+                [Label's message goes here]
+            </div>
+        </wicket:panel>
+    </body>
+</html>

ccm-core/src/main/resources/org/libreccm/ui/admin/configuration/ConfigurationPanel.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <wicket:panel>
+            <div wicket:id="configurationLabel">
+                [Label's message goes here]
+            </div>
+        </wicket:panel>
+    </body>
+</html>

ccm-core/src/main/resources/org/libreccm/ui/admin/dashboard/DashboardPanel.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <wicket:panel>
+            <div wicket:id="dashboardLabel">
+                [Label's message goes here]
+            </div>
+        </wicket:panel>
+    </body>
+</html>

ccm-core/src/main/resources/org/libreccm/ui/admin/imexport/ImExportPanel.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <wicket:panel>
+            <div wicket:id="imexportLabel">
+                [Label's message goes here]
+            </div>
+        </wicket:panel>
+    </body>
+</html>

ccm-core/src/main/resources/org/libreccm/ui/admin/pagemodels/PageModelsPanel.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <wicket:panel>
+            <div wicket:id="pageModelsLabel">
+                [Label's message goes here]
+            </div>
+        </wicket:panel>
+    </body>
+</html>

ccm-core/src/main/resources/org/libreccm/ui/admin/sites/SitesPanel.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <wicket:panel>
+            <div wicket:id="sitesLabel">
+                [Label's message goes here]
+            </div>
+        </wicket:panel>
+    </body>
+</html>

ccm-core/src/main/resources/org/libreccm/ui/admin/systeminformation/SystemInformationPanel.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <wicket:panel>
+            <div wicket:id="systemInformationLabel">
+                [Label's message goes here]
+            </div>
+        </wicket:panel>
+    </body>
+</html>

ccm-core/src/main/resources/org/libreccm/ui/admin/usersgroupsroles/UsersGroupsRolesPanel.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <wicket:panel>
+            <div wicket:id="usersGroupsRolesLabel">
+                [Label's message goes here]
+            </div>
+        </wicket:panel>
+    </body>
+</html>

ccm-core/src/main/resources/org/libreccm/ui/admin/usersgroupsroles/groups/GroupsPanel.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <wicket:panel>
+            <div wicket:id="groupsLabel">
+                [Label's message goes here]
+            </div>
+        </wicket:panel>
+    </body>
+</html>

ccm-core/src/main/resources/org/libreccm/ui/admin/usersgroupsroles/roles/RolesPanel.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <wicket:panel>
+            <div wicket:id="rolesLabel">
+                [Label's message goes here]
+            </div>
+        </wicket:panel>
+    </body>
+</html>

ccm-core/src/main/resources/org/libreccm/ui/admin/usersgroupsroles/users/UsersPanel.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <wicket:panel>
+            <div wicket:id="usersLabel">
+                [Label's message goes here]
+            </div>
+        </wicket:panel>
+    </body>
+</html>

ccm-core/src/main/resources/org/libreccm/ui/bootstrap/NavItem.html

@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <wicket:panel>
+            <li class="nav-item">
+                <a 
+                    class="nav-link"
+                    href="[targetpage]"
+                    wicket:id="link"
+                    >
+                    <span wicket:id="link-label">[Link Label]</span>
+                </a>
+            </li>
+        </wicket:panel>
+    </body>
+</html>
+

ccm-core/src/main/scss/ccm-admin/ccm-admin.scss

@@ -0,0 +1 @@
+@import "../../../../node_modules/bootstrap/scss/bootstrap";

ccm-core/src/main/typescript/ccm-admin/ccm-admin.ts

@@ -0,0 +1 @@
+import "bootstrap";

pom.xml

@@ -164,8 +164,8 @@
                     <artifactId>maven-compiler-plugin</artifactId>
                     <version>3.8.1</version>
                     <configuration>
-                        <source>1.8</source>
+                        <source>11</source>
-                        <target>1.8</target>
+                        <target>11</target>
                         <optimize>true</optimize>
                         <debug>true</debug>
                         <encoding>${project.build.sourceEncoding}</encoding>
@@ -556,6 +556,17 @@
                 <version>0.11.2</version>
             </dependency>
 
+            <dependency>
+                <groupId>org.apache.wicket</groupId>
+                <artifactId>wicket-core</artifactId>
+                <version>9.0.0</version>
+            </dependency>
+            <dependency>
+                <groupId>org.apache.wicket</groupId>
+                <artifactId>wicket-cdi</artifactId>
+                <version>9.0.0</version>
+            </dependency>
+            
             <!--
                 *********************
                 Libraries used by CCM