Author: reto
Date: Wed Feb 24 22:43:47 2010
New Revision: 916019
URL: http://svn.apache.org/viewvc?rev=916019&view=rev
Log:
CLEREZZA-126: closed
Removed:
incubator/clerezza/issues/CLEREZZA-126/
Modified:
incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.webapp.parent/org.apache.clerezza.platform.content.representations/
(props changed)
incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.webapp.parent/org.apache.clerezza.platform.content.representations/org.apache.clerezza.platform.content.representations.core/src/main/java/org/apache/clerezza/platform/content/representations/core/ThumbnailService.java
Propchange:
incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.webapp.parent/org.apache.clerezza.platform.content.representations/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Wed Feb 24 22:43:47 2010
@@ -1 +1,2 @@
+/incubator/clerezza/issues/CLEREZZA-126/org.apache.clerezza.platform.content.representations:910212-916002
/incubator/clerezza/issues/CLEREZZA-38/org.apache.clerezza.platform.content.representations:893127-895998
Modified:
incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.webapp.parent/org.apache.clerezza.platform.content.representations/org.apache.clerezza.platform.content.representations.core/src/main/java/org/apache/clerezza/platform/content/representations/core/ThumbnailService.java
URL:
http://svn.apache.org/viewvc/incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.webapp.parent/org.apache.clerezza.platform.content.representations/org.apache.clerezza.platform.content.representations.core/src/main/java/org/apache/clerezza/platform/content/representations/core/ThumbnailService.java?rev=916019&r1=916018&r2=916019&view=diff
==============================================================================
---
incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.webapp.parent/org.apache.clerezza.platform.content.representations/org.apache.clerezza.platform.content.representations.core/src/main/java/org/apache/clerezza/platform/content/representations/core/ThumbnailService.java
(original)
+++
incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.webapp.parent/org.apache.clerezza.platform.content.representations/org.apache.clerezza.platform.content.representations.core/src/main/java/org/apache/clerezza/platform/content/representations/core/ThumbnailService.java
Wed Feb 24 22:43:47 2010
@@ -6,9 +6,9 @@
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
- *
+ *
* http://www.apache.org/licenses/LICENSE-2.0
- *
+ *
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
@@ -19,23 +19,28 @@
package org.apache.clerezza.platform.content.representations.core;
import java.net.URI;
+import java.net.URL;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.HashMap;
import java.util.Iterator;
+import java.util.Map;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.QueryParam;
import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
+import javax.ws.rs.core.UriInfo;
+import org.apache.clerezza.jaxrs.utils.RedirectUtil;
import org.apache.clerezza.platform.config.PlatformConfig;
-import
org.apache.clerezza.platform.content.representations.ontologies.REPRESENTATIONS;
import org.apache.clerezza.platform.graphprovider.content.ContentGraphProvider;
import org.apache.clerezza.rdf.core.Literal;
import org.apache.clerezza.rdf.core.LiteralFactory;
-import org.apache.clerezza.rdf.core.NonLiteral;
import org.apache.clerezza.rdf.core.Resource;
import org.apache.clerezza.rdf.core.TypedLiteral;
import org.apache.clerezza.rdf.core.UriRef;
-import org.apache.clerezza.rdf.core.impl.TripleImpl;
import org.apache.clerezza.rdf.ontologies.DISCOBITS;
import org.apache.clerezza.rdf.ontologies.EXIF;
import org.apache.clerezza.rdf.utils.GraphNode;
@@ -43,6 +48,10 @@
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.BundleEvent;
+import org.osgi.framework.BundleListener;
import org.osgi.service.component.ComponentContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -50,47 +59,36 @@
/**
* This JAX-RS resource provides a method to retrieve the uri to
* the thumbnail or a other small representation of a InfoDiscoBit.
- *
+ *
* @author mir
*/
@Component
-...@service(value = Object.class)
+...@service(Object.class)
@Property(name = "javax.ws.rs", boolValue = true)
@Path("thumbnail-service")
-public class ThumbnailService {
+public class ThumbnailService implements BundleListener{
@Reference
ContentGraphProvider cgProvider;
@Reference
PlatformConfig config;
- private UriRef defaultIconUri;
private static final Logger log =
LoggerFactory.getLogger(ThumbnailService.class);
+ private BundleContext bundleContext;
+ private String STATICWEB_PATH =
"/org/apache/clerezza/web/resources/style/staticweb/";
+ private String BASE_PATH = STATICWEB_PATH + "images/icons/mediatype/";
+ private Bundle cachedStyleBundle = null;
+ private Map<MediaType, String> mediaTypeIconUriCache =
+ Collections.synchronizedMap(new HashMap<MediaType,
String>());
protected void activate(ComponentContext context) {
- String baseUri = config.getDefaultBaseUri().getUnicodeString();
- addMediaTypeIcon(createUriRef(baseUri,
"style/images/icons/mediatype/text/plain.png"), MediaType.TEXT_PLAIN);
- addMediaTypeIcon(createUriRef(baseUri,
"style/images/icons/mediatype/application/msword.png"), "application/msword");
- addMediaTypeIcon(createUriRef(baseUri,
"style/images/icons/mediatype/application/x-amf.png"),
"application/x-shockwave-flash");
- addMediaTypeIcon(createUriRef(baseUri,
"style/images/icons/mediatype/application/pdf.png"), "application/pdf");
- addMediaTypeIcon(createUriRef(baseUri,
"style/images/icons/mediatype/application/vnd.ms-powerpoint.png"),
"application/vnd.ms-powerpoint");
- addMediaTypeIcon(createUriRef(baseUri,
"style/images/icons/mediatype/application/x-tar.png"), "application/x-tar");
- addMediaTypeIcon(createUriRef(baseUri,
"style/images/icons/mediatype/application/x-amf.png"), "application/x-amf");
- addMediaTypeIcon(createUriRef(baseUri,
"style/images/icons/mediatype/application/vnd.ms-excel.png"),
"application/vnd.ms-excel");
- addMediaTypeIcon(createUriRef(baseUri,
"style/images/icons/mediatype/application/octet-stream.png"),
"application/octet-stream");
- addMediaTypeIcon(createUriRef(baseUri,
"style/images/icons/mediatype/audio/any.png"), "audio/x-wav");
- addMediaTypeIcon(createUriRef(baseUri,
"style/images/icons/mediatype/audio/any.png"), "audio/mpeg");
- addMediaTypeIcon(createUriRef(baseUri,
"style/images/icons/mediatype/audio/any.png"), "audio/mid");
- defaultIconUri = createUriRef(baseUri,
"style/images/icons/mediatype/any.png");
- }
-
- private UriRef createUriRef(String baseUri, String relativeUri) {
- return new UriRef(baseUri + relativeUri);
- }
-
- private void addMediaTypeIcon(UriRef icon, String type) {
- cgProvider.getContentGraph().add(
- new TripleImpl(icon, REPRESENTATIONS.isIconFor,
-
LiteralFactory.getInstance().createTypedLiteral(type)));
+ bundleContext = context.getBundleContext();
+ bundleContext.addBundleListener(this);
+ }
+
+ protected void deactivate(ComponentContext context) {
+ bundleContext.removeBundleListener(this);
+ bundleContext = null;
+ mediaTypeIconUriCache.clear();
}
/**
@@ -110,7 +108,8 @@
@GET
public Response getThumbnailUri(@QueryParam("uri") UriRef infoBitUri,
@QueryParam("width") Integer width,
- @QueryParam("height") Integer height) {
+ @QueryParam("height") Integer height,
+ @Context UriInfo uriInfo) {
if ((width == null) && (height == null)) {
throw new WebApplicationException(new
IllegalArgumentException("height and/or width must be specified"),
Response.Status.BAD_REQUEST);
@@ -129,16 +128,55 @@
}
Iterator<Resource> mediaTypes =
infoBitNode.getObjects(DISCOBITS.mediaType);
if (mediaTypes.hasNext()) {
- GraphNode mediaType = new GraphNode(mediaTypes.next(),
- cgProvider.getContentGraph());
-
- Iterator<NonLiteral> icons =
mediaType.getSubjects(REPRESENTATIONS.isIconFor);
- if (icons.hasNext()) {
- return Response.seeOther(
- URI.create(((UriRef)
icons.next()).getUnicodeString())).build();
+ MediaType mediaType =
MediaType.valueOf(LiteralFactory.getInstance().createObject(
+ String.class, (TypedLiteral)
mediaTypes.next()));
+ String iconUri = mediaTypeIconUriCache.get(mediaType);
+ if (iconUri == null) {
+ iconUri = getMediaTypeIconUri(mediaType);
+ mediaTypeIconUriCache.put(mediaType, iconUri);
}
+ return RedirectUtil.createSeeOtherResponse(iconUri,
uriInfo);
+ }
+ return RedirectUtil.createSeeOtherResponse(
+ getDefaultIconUrl(getStyleBundle()), uriInfo);
+ }
+
+ private String getMediaTypeIconUri(MediaType mediaType) {
+ Bundle styleBundle = getStyleBundle();
+ if (styleBundle == null) {
+ throw new RuntimeException("no style bundle found");
+ }
+ String path = BASE_PATH + mediaType.getType() + "/";
+ Enumeration entries = styleBundle.findEntries(path,
+ mediaType.getSubtype() + ".*", false);
+ String iconUri = createIconUri(entries);
+ if (iconUri != null) {
+ return iconUri;
+ }
+ entries = styleBundle.findEntries(path, "any.*", false);
+ iconUri = createIconUri(entries);
+ if (iconUri != null) {
+ return iconUri;
+ }
+ return getDefaultIconUrl(styleBundle);
+ }
+
+ private String getDefaultIconUrl(Bundle bundle) {
+ Enumeration entries = bundle.findEntries(BASE_PATH, "any.*",
false);
+ String iconUri = createIconUri(entries);
+ if (iconUri != null) {
+ return iconUri;
+ } else {
+ throw new RuntimeException("No default icon found");
}
- return
Response.seeOther(URI.create(defaultIconUri.getUnicodeString())).build();
+ }
+
+ private String createIconUri(Enumeration entries) {
+ if (entries != null && entries.hasMoreElements()) {
+ URL iconUrl = (URL) entries.nextElement();
+ return iconUrl.getPath().replace(STATICWEB_PATH,
"style/");
+ }
+ return null;
}
private UriRef getThumbnailUri(GraphNode infoBitNode,
@@ -197,4 +235,29 @@
return false;
}
}
+
+ private synchronized Bundle getStyleBundle() {
+ if (cachedStyleBundle != null) {
+ return cachedStyleBundle;
+ }
+ Bundle[] bundles = bundleContext.getBundles();
+ for (Bundle bundle : bundles) {
+ URL staticWebPathURL = bundle.getEntry(STATICWEB_PATH);
+ if (staticWebPathURL != null ) {
+ cachedStyleBundle = bundle;
+ return bundle;
+ }
+ }
+ return null;
+ }
+
+ @Override
+ public synchronized void bundleChanged(BundleEvent be) {
+ if (be.getType() == BundleEvent.UNINSTALLED &&
+ be.getBundle().equals(cachedStyleBundle)) {
+ cachedStyleBundle = null;
+ cachedStyleBundle = getStyleBundle();
+ mediaTypeIconUriCache.clear();
+ }
+ }
}
