An {@link com.arsdigita.cms.Asset asset} representing a reusable * image.
* * @see com.arsdigita.cms.ImageAsset * * @author Scott Seago (sseago@redhat.com) * @author Stanislav Freidin * * @version $Revision: #12 $ $DateTime: 2004/08/17 23:15:09 $ */ public class ReusableImageAsset extends ImageAsset { public static final String versionId = "$Id: ReusableImageAsset.java 754 2005-09-02 13:26:17Z sskracic $" + "$Author: sskracic $" + "$DateTime: 2004/08/17 23:15:09 $"; private static final Logger s_log = Logger.getLogger( ReusableImageAsset.class ); public static final String BASE_DATA_OBJECT_TYPE = "com.arsdigita.cms.ReusableImageAsset"; /** * Default constructor. This creates a new image asset. */ public ReusableImageAsset() { super(BASE_DATA_OBJECT_TYPE); } /** * Constructor. The containedDataObject is retrieved
* from the persistent storage mechanism with an OID
* specified by oid.
*
* @param oid The OID for the retrieved
* DataObject.
*/
public ReusableImageAsset(OID oid) throws DataObjectNotFoundException {
super(oid);
}
/**
* Constructor. The contained DataObject is retrieved
* from the persistent storage mechanism with an OID
* specified by id and
* ReusableImageAsset.BASE_DATA_OBJECT_TYPE.
*
* @param id The id for the retrieved
* DataObject.
**/
public ReusableImageAsset(BigDecimal id) throws DataObjectNotFoundException {
this(new OID(BASE_DATA_OBJECT_TYPE, id));
}
public ReusableImageAsset(DataObject obj) {
super(obj);
}
public ReusableImageAsset(String type) {
super(type);
}
/**
* @return the base PDL object type for this item. Child classes should
* override this method to return the correct value
*/
public String getBaseDataObjectType() {
return BASE_DATA_OBJECT_TYPE;
}
public BigDecimal getWidth() {
return (BigDecimal) get(WIDTH);
}
public void setWidth(BigDecimal width) {
set(WIDTH, width);
}
public BigDecimal getHeight() {
return (BigDecimal) get(HEIGHT);
}
public void setHeight(BigDecimal height) {
set(HEIGHT, height);
}
/**
* Retrieves the Blob content.
*
* @return the Blob content
*/
protected byte[] getContent() {
return (byte[]) get(CONTENT);
}
/**
* Sets the Blob content.
*/
protected void setContent(byte[] content) {
set(CONTENT, content);
}
/**
* Load the image asset from the specified file. Automatically guesses
* the mime type of the file. If the file is a jpeg, tries to automatically
* determine width and height, as well.
*
* @param fileName The original name of the file
* @param File The actual file on the server
* @param defaultMimeType The default mime type for the file
*/
public void loadFromFile(String fileName, File file, String defaultMimeType)
throws IOException {
// Guess mime type
MimeType mime = MimeType.guessMimeTypeFromFile(fileName);
if( s_log.isDebugEnabled() ) {
s_log.debug( "Mime type is " + ( null == mime ? "null" : mime.getMimeType() ) );
}
RenderedImage image = JAI.create( "FileLoad", file.getPath() );
int width = image.getWidth();
int height = image.getHeight();
if( s_log.isDebugEnabled() ) {
s_log.debug( "Width: " + width );
s_log.debug( "Height: " + height );
}
if( s_log.isDebugEnabled() ) {
String[] props = image.getPropertyNames();
for( int i = 0; i < props.length; i++ ) {
String prop = props[i];
s_log.debug( prop + ": " + image.getProperty( prop ) );
}
}
setWidth( new BigDecimal( width ) );
setHeight( new BigDecimal( height ) );
if(mime == null || !( mime instanceof ImageMimeType ) ) {
mime = MimeType.loadMimeType(defaultMimeType);
}
setMimeType(mime);
// Extract the filename
int i = fileName.lastIndexOf("/");
if(i > 0) {
fileName = fileName.substring(i+1);
}
i = fileName.lastIndexOf("\\"); // DOS-style
if(i > 0) {
fileName = fileName.substring(i+1);
}
setName(fileName);
FileInputStream in = new FileInputStream(file);
readBytes(in);
}
/**
* Write the image asset content to a file.
*
* @param file The file on the server to write to.
*/
public void writeToFile(File file)
throws IOException {
FileOutputStream fs = new FileOutputStream(file);
try {
fs.write(getContent());
} finally {
if (null != fs) {
fs.close();
}
}
}
/**
* Retrieve all images in the database. Expensive operation.
*
* @return a collection of ReusableImageAssets
*/
public static ImageAssetCollection getAllReusableImages() {
DataCollection da = SessionManager.getSession().retrieve
(BASE_DATA_OBJECT_TYPE);
da.addEqualsFilter(VersionedACSObject.IS_DELETED, new Integer(0));
da.addEqualsFilter(ACSObject.OBJECT_TYPE, BASE_DATA_OBJECT_TYPE);
return new ImageAssetCollection(da);
}
/**
* Find all images whose name matches the specified keyword
*
* @param keyword a String keyword
* @param context the context for the retrieved items. Should be
* {@link ContentItem#DRAFT} or {@link ContentItem#LIVE}
* @return a collection of images whose name matches the keyword
*/
public static ImageAssetCollection getReusableImagesByKeyword(
String keyword, String context
) {
ImageAssetCollection c = getAllReusableImages();
c.addOrder(Asset.NAME);
Filter f;
if(!(keyword == null || keyword.length() < 1)) {
f = c.addFilter("lower(name) like lower(\'%\' || :keyword || \'%\')");
f.set("keyword", keyword);
}
f = c.addFilter("version = :version");
f.set("version", context);
return c;
}
/**
* Find all images whose name matches the specified keyword
*
* @param keyword a String keyword
* @return a collection of images whose name matches the keyword
*/
public static ImageAssetCollection getReusableImagesByKeyword(String keyword) {
return getReusableImagesByKeyword(keyword, ContentItem.DRAFT);
}
}