/*
* Copyright (c) 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
*
* 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.eclipse.org/legal/epl-v10.html
*
* Contributors:
* bstefanescu
*/
package org.eclipse.ecr.web.jaxrs.session;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.WebApplicationException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.ecr.core.api.CoreSession;
import org.eclipse.ecr.core.api.repository.Repository;
import org.eclipse.ecr.core.api.repository.RepositoryManager;
import org.eclipse.ecr.runtime.api.Framework;
/**
* @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
*
*/
public abstract class CoreSessionProvider<REF extends SessionRef> {
private static final Log log = LogFactory.getLog(CoreSessionProvider.class);
protected Map<String, REF> sessions;
protected CoreSessionProvider() {
this.sessions = new HashMap<String, REF>();
}
/**
* The HTTP request was consumed. Do any request level cleanup now.
*/
protected abstract void onRequestDone(HttpServletRequest request);
protected abstract REF createSessionRef(CoreSession session);
public SessionRef[] getSessions() {
return sessions.values().toArray(new SessionRef[sessions.size()]);
}
public SessionRef getSessionRef(HttpServletRequest request, String repoName) {
REF ref = sessions.get(repoName);
if (ref == null) {
ref = createSessionRef(createSession(request, repoName));
sessions.put(repoName, ref);
}
return ref;
}
public CoreSession getSession(HttpServletRequest request,
String repoName) {
return getSessionRef(request, repoName).get();
}
protected CoreSession createSession(HttpServletRequest request, String repoName) {
try {
return _createSession(request, repoName);
} catch (Exception e) {
throw new WebApplicationException(e, 500);
}
}
protected CoreSession _createSession(HttpServletRequest request, String repoName) throws Exception {
if (request.getUserPrincipal() == null) {
throw new java.lang.IllegalStateException("Not authenticated user is trying to get a core session");
}
RepositoryManager rm = Framework.getService(RepositoryManager.class);
Repository repo = null;
if (repoName == null) {
repo = rm.getDefaultRepository();
} else {
repo = rm.getRepository(repoName);
}
if (repo == null) {
//TODO use custom exception
throw new java.lang.IllegalStateException("Unable to get " + repoName
+ " repository");
}
return repo.open();
}
public boolean hasSessions() {
return !sessions.isEmpty();
}
protected void destroy() {
for (SessionRef ref : getSessions()) {
try {
ref.destroy();
} catch(Throwable t) {
log.error("Failed to destroy core session", t);
}
}
sessions = null;
}
}