/*
* Copyright (C) 2003-2011 eXo Platform SAS.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.exoplatform.social.core.storage.impl;
import java.util.Iterator;
import org.chromattic.api.ChromatticSession;
import org.exoplatform.commons.chromattic.ChromatticManager;
import org.exoplatform.container.PortalContainer;
import org.exoplatform.social.common.lifecycle.SocialChromatticLifeCycle;
import org.exoplatform.social.core.chromattic.entity.ProviderRootEntity;
import org.exoplatform.social.core.chromattic.entity.SpaceRootEntity;
import org.exoplatform.social.core.storage.cache.CachedActivityStorage;
import org.exoplatform.social.core.storage.exception.NodeNotFoundException;
/**
* @author <a href="mailto:alain.defrance@exoplatform.com">Alain Defrance</a>
* @version $Revision$
*/
public abstract class AbstractStorage {
//
protected final PortalContainer container;
protected final ChromatticManager manager;
protected final SocialChromatticLifeCycle lifeCycle;
//
protected static final String NS_JCR = "jcr:";
//
protected static final String NODETYPE_PROVIDERS = "soc:providers";
protected static final String NODETYPE_SPACES = "soc:spaces";
//
protected static final String SENDER = "sender";
protected static final String RECEIVER = "receiver";
private CachedActivityStorage cachedActivityStorage;
protected AbstractStorage() {
this.container = PortalContainer.getInstance();
this.manager = (ChromatticManager) container.getComponentInstanceOfType(ChromatticManager.class);
this.lifeCycle = (SocialChromatticLifeCycle) manager.getLifeCycle(SocialChromatticLifeCycle.SOCIAL_LIFECYCLE_NAME);
}
protected ChromatticSession getSession() {
return lifeCycle.getSession();
}
private <T> T getRoot(String nodetypeName, Class<T> t) {
T got = getSession().findByPath(t, nodetypeName);
if (got == null) {
got = getSession().insert(t, nodetypeName);
}
return got;
}
protected ProviderRootEntity getProviderRoot() {
if (lifeCycle.getProviderRoot().get() == null) {
lifeCycle.getProviderRoot().set(getRoot(NODETYPE_PROVIDERS, ProviderRootEntity.class));
}
return (ProviderRootEntity) lifeCycle.getProviderRoot().get();
}
protected SpaceRootEntity getSpaceRoot() {
if (lifeCycle.getSpaceRoot().get() == null) {
lifeCycle.getSpaceRoot().set(getRoot(NODETYPE_SPACES, SpaceRootEntity.class));
}
return (SpaceRootEntity) lifeCycle.getSpaceRoot().get();
}
protected <T> T _findById(final Class<T> clazz, final String nodeId) throws NodeNotFoundException {
if (nodeId == null) {
throw new NodeNotFoundException("null id cannot be found");
}
//
T got = getSession().findById(clazz, nodeId);
//
if (got == null) {
throw new NodeNotFoundException(nodeId + " doesn't exists");
}
return got;
}
protected <T> T _findByPath(final Class<T> clazz, final String nodePath) throws NodeNotFoundException {
if (nodePath == null) {
throw new NodeNotFoundException("null nodePath cannot be found");
}
//
T got = getSession().findByPath(clazz, nodePath, true);
//
if (got == null) {
throw new NodeNotFoundException(nodePath + " doesn't exists");
}
return got;
}
protected void _removeById(final Class<?> clazz, final String nodeId) {
getSession().remove(getSession().findById(clazz, nodeId));
}
protected boolean isJcrProperty(String name) {
return !name.startsWith(NS_JCR);
}
protected void _skip(Iterator<?> it, long offset) {
// TODO : use JCR skip
while (it.hasNext()) {
if (offset == 0) {
return;
}
else {
it.next();
--offset;
}
}
}
protected boolean startSynchronization() {
if (lifeCycle.getManager().getSynchronization() == null) {
lifeCycle.getManager().beginRequest();
return true;
}
return false;
}
protected void stopSynchronization(boolean requestClose) {
if (requestClose) {
lifeCycle.getManager().endRequest(true);
}
}
}