/* ********************************************************************** **
** Copyright notice **
** **
** (c) 2005-2006 RSSOwl Development Team **
** http://www.rssowl.org/ **
** **
** All rights reserved **
** **
** This program and the accompanying materials are made available under **
** the terms of the Eclipse Public License v1.0 which accompanies this **
** distribution, and is available at: **
** http://www.rssowl.org/legal/epl-v10.html **
** **
** A copy is found in the file epl-v10.html and important notices to the **
** license from the team is found in the textfile LICENSE.txt distributed **
** in this package. **
** **
** This copyright notice MUST APPEAR in all copies of the file! **
** **
** Contributors: **
** RSSOwl Development Team - initial API and implementation **
** **
** ********************************************************************** */
package org.rssowl.core.tests.controller;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.osgi.service.url.AbstractURLStreamHandlerService;
import org.osgi.service.url.URLStreamHandlerService;
import org.rssowl.core.Owl;
import org.rssowl.core.connection.ConnectionException;
import org.rssowl.core.connection.IConditionalGetCompatible;
import org.rssowl.core.connection.IConnectionPropertyConstants;
import org.rssowl.core.connection.IProtocolHandler;
import org.rssowl.core.persist.IConditionalGet;
import org.rssowl.core.persist.IFeed;
import org.rssowl.core.persist.IModelFactory;
import org.rssowl.core.util.Pair;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URL;
import java.net.URLConnection;
import java.util.Map;
/**
* Protocol-Handler to return a Feed from In-Memory.
*
* @author bpasero
*/
public class InMemoryProtocolHandler implements IProtocolHandler {
static String FEED;
/*
* @see org.rssowl.core.connection.IProtocolHandler#reload(java.net.URI,
* org.eclipse.core.runtime.IProgressMonitor, java.util.Map)
*/
public Pair<IFeed, IConditionalGet> reload(URI link, IProgressMonitor monitor, Map<Object, Object> properties) throws CoreException {
IModelFactory typesFactory = Owl.getModelFactory();
/* Create a new empty feed from the existing one */
IFeed feed = typesFactory.createFeed(null, link);
/* Add Monitor to support early cancelation */
properties.put(IConnectionPropertyConstants.PROGRESS_MONITOR, monitor);
/* Retrieve the InputStream out of the Feed's Link */
InputStream inS = new ByteArrayInputStream(FEED.getBytes());
/* Retrieve Conditional Get if present */
IConditionalGet conditionalGet = getConditionalGet(link, inS);
/* Return on Cancelation or Shutdown */
if (monitor.isCanceled()) {
try {
inS.close();
} catch (IOException e) {
/* Ignore */
}
return Pair.create(feed, conditionalGet);
}
/* Pass the Stream to the Interpreter */
Owl.getInterpreter().interpret(inS, feed);
return Pair.create(feed, conditionalGet);
}
/*
* @see org.rssowl.core.connection.IProtocolHandler#getFeedIcon(java.net.URI)
*/
public byte[] getFeedIcon(URI link) {
return null;
}
private IConditionalGet getConditionalGet(URI link, InputStream inS) {
IModelFactory typesFactory = Owl.getModelFactory();
if (inS instanceof IConditionalGetCompatible) {
String ifModifiedSince = ((IConditionalGetCompatible) inS).getIfModifiedSince();
String ifNoneMatch = ((IConditionalGetCompatible) inS).getIfNoneMatch();
if (ifModifiedSince != null || ifNoneMatch != null)
return typesFactory.createConditionalGet(ifModifiedSince, link, ifNoneMatch);
}
return null;
}
/*
* @see org.rssowl.core.connection.IProtocolHandler#getURLStreamHandler()
*/
@SuppressWarnings("unused")
public URLStreamHandlerService getURLStreamHandler() throws ConnectionException {
return new AbstractURLStreamHandlerService() {
@SuppressWarnings("unused")
@Override
public URLConnection openConnection(URL u) throws IOException {
return null;
}
};
}
/*
* @see org.rssowl.core.connection.IProtocolHandler#getLabel(java.net.URI)
*/
@SuppressWarnings("unused")
public String getLabel(URI link) throws ConnectionException {
throw new UnsupportedOperationException();
}
}