/*
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.services.jcr.impl;
import org.exoplatform.container.ExoContainer;
import org.exoplatform.container.ExoContainerContext;
import org.exoplatform.container.PortalContainer;
import org.exoplatform.container.component.ComponentPlugin;
import org.exoplatform.container.configuration.ConfigurationManager;
import org.exoplatform.services.jcr.RepositoryService;
import org.exoplatform.services.jcr.config.RepositoryConfigurationException;
import org.exoplatform.services.jcr.config.RepositoryEntry;
import org.exoplatform.services.jcr.config.RepositoryServiceConfiguration;
import org.exoplatform.services.jcr.config.WorkspaceEntry;
import org.exoplatform.services.jcr.core.ManageableRepository;
import org.exoplatform.services.jcr.core.nodetype.ExtendedNodeTypeManager;
import org.exoplatform.services.jcr.dataflow.persistent.ItemsPersistenceListener;
import org.exoplatform.services.jcr.impl.core.RepositoryImpl;
import org.exoplatform.services.jcr.impl.core.SessionRegistry;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import org.picocontainer.Startable;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;
import java.util.Map.Entry;
import javax.jcr.RepositoryException;
/**
* Created by The eXo Platform SAS.
*
* @author <a href="mailto:geaz@users.sourceforge.net">Gennady Azarenkov </a>
* @version $Id: RepositoryServiceImpl.java 13986 2008-05-08 10:48:43Z pnedonosko $
*/
public class RepositoryServiceImpl implements RepositoryService, Startable
{
protected static Log log = ExoLogger.getLogger("exo.jcr.component.core.RepositoryServiceImpl");
private final RepositoryServiceConfiguration config;
private final ThreadLocal<String> currentRepositoryName = new ThreadLocal<String>();
private final HashMap<String, RepositoryContainer> repositoryContainers = new HashMap<String, RepositoryContainer>();
private final List<ComponentPlugin> addNodeTypePlugins;
private final List<ComponentPlugin> addNamespacesPlugins;
private final ManagerStartChanges managerStartChanges;
private final ExoContainerContext containerContext;
private ExoContainer parentContainer;
public RepositoryServiceImpl(RepositoryServiceConfiguration configuration)
{
this(configuration, null);
}
public RepositoryServiceImpl(RepositoryServiceConfiguration configuration, ExoContainerContext context)
{
this.config = configuration;
addNodeTypePlugins = new ArrayList<ComponentPlugin>();
addNamespacesPlugins = new ArrayList<ComponentPlugin>();
containerContext = context;
currentRepositoryName.set(config.getDefaultRepositoryName());
managerStartChanges = new ManagerStartChanges();
}
public void addPlugin(ComponentPlugin plugin)
{
if (plugin instanceof AddNodeTypePlugin)
addNodeTypePlugins.add(plugin);
else if (plugin instanceof AddNamespacesPlugin)
addNamespacesPlugins.add(plugin);
else if (plugin instanceof RepositoryChangesListenerRegisterPlugin)
{
managerStartChanges.addPlugin((RepositoryChangesListenerRegisterPlugin)plugin);
}
}
/**
* {@inheritDoc}
*/
public boolean canRemoveRepository(String name) throws RepositoryException
{
return canRemoveRepository(name, false);
}
/**
* Create repository. <br>
* Init worksapces for initial start or them load from persistence. <br>
* Add namespaces and nodetypes from service plugins.
*
*/
public synchronized void createRepository(RepositoryEntry rEntry) throws RepositoryConfigurationException,
RepositoryException
{
if (repositoryContainers.containsKey(rEntry.getName()))
{
throw new RepositoryConfigurationException("Repository container " + rEntry.getName() + " already started");
}
RepositoryContainer repositoryContainer = new RepositoryContainer(parentContainer, rEntry, addNamespacesPlugins);
// Storing and starting the repository container under
// key=repository_name
try
{
repositoryContainers.put(rEntry.getName(), repositoryContainer);
managerStartChanges.registerListeners(repositoryContainer);
repositoryContainer.start();
}
catch (Throwable t)
{
//TODO will be implemented unregistration in managerStartChanges
//managerStartChanges.removeListeners(repositoryContainer);
repositoryContainers.remove(rEntry.getName());
throw new RepositoryConfigurationException("Repository conatainer " + rEntry.getName() + " was not started.",
t);
}
if (!config.getRepositoryConfigurations().contains(rEntry))
{
config.getRepositoryConfigurations().add(rEntry);
}
registerNodeTypes(rEntry.getName());
// turn on Repository ONLINE
ManageableRepository mr =
(ManageableRepository)repositoryContainer.getComponentInstanceOfType(ManageableRepository.class);
mr.setState(ManageableRepository.ONLINE);
}
public RepositoryServiceConfiguration getConfig()
{
return config;
}
public ManageableRepository getCurrentRepository() throws RepositoryException
{
if (currentRepositoryName.get() == null)
return getDefaultRepository();
return getRepository(currentRepositoryName.get());
}
public ManageableRepository getDefaultRepository() throws RepositoryException
{
return getRepository(config.getDefaultRepositoryName());
}
/**
* @deprecated use getDefaultRepository() instead
*/
@Deprecated
public ManageableRepository getRepository() throws RepositoryException
{
return getDefaultRepository();
}
// ------------------- Startable ----------------------------
public ManageableRepository getRepository(String name) throws RepositoryException
{
RepositoryContainer repositoryContainer = repositoryContainers.get(name);
log.debug("RepositoryServiceimpl() getRepository " + name);
if (repositoryContainer == null)
throw new RepositoryException("Repository '" + name + "' not found.");
return (ManageableRepository)repositoryContainer.getComponentInstanceOfType(ManageableRepository.class);
}
/**
* {@inheritDoc}
*/
public void removeRepository(String name) throws RepositoryException
{
removeRepository(name, false);
}
public void setCurrentRepositoryName(String repositoryName) throws RepositoryConfigurationException
{
if (!repositoryContainers.containsKey(repositoryName))
throw new RepositoryConfigurationException("Repository is not configured. Name " + repositoryName);
currentRepositoryName.set(repositoryName);
}
public void start()
{
try
{
ExoContainer container = null;
if (containerContext == null)
{
container = PortalContainer.getInstance();
}
else
{
container = containerContext.getContainer();
}
init(container);
}
catch (RepositoryException e)
{
log.error("Error start repository service", e);
}
catch (RepositoryConfigurationException e)
{
log.error("Error start repository service", e);
}
catch (Throwable e)
{
log.error("Error start repository service", e);
throw new RuntimeException(e);
}
}
public void stop()
{
for (Entry<String, RepositoryContainer> entry : repositoryContainers.entrySet())
{
entry.getValue().stop();
}
repositoryContainers.clear();
addNamespacesPlugins.clear();
addNodeTypePlugins.clear();
managerStartChanges.cleanup();
}
/**
* Remove default repository.
*
* @throws RepositoryException
* if any Exception occurred during removing
*/
protected void removeDefaultRepository() throws RepositoryException
{
removeRepository(config.getDefaultRepositoryName(), true);
}
private void init(ExoContainer container) throws RepositoryConfigurationException, RepositoryException
{
this.parentContainer = container;
List<RepositoryEntry> rEntries = config.getRepositoryConfigurations();
for (int i = 0; i < rEntries.size(); i++)
{
RepositoryEntry rEntry = rEntries.get(i);
// Making new repository container as portal's subcontainer
createRepository(rEntry);
}
}
private void registerNodeTypes(String repositoryName) throws RepositoryException
{
ConfigurationManager configService =
(ConfigurationManager)parentContainer.getComponentInstanceOfType(ConfigurationManager.class);
ExtendedNodeTypeManager ntManager = getRepository(repositoryName).getNodeTypeManager();
//
for (int j = 0; j < addNodeTypePlugins.size(); j++)
{
AddNodeTypePlugin plugin = (AddNodeTypePlugin)addNodeTypePlugins.get(j);
List<String> autoNodeTypesFiles = plugin.getNodeTypesFiles(AddNodeTypePlugin.AUTO_CREATED);
if (autoNodeTypesFiles != null && autoNodeTypesFiles.size() > 0)
{
for (String nodeTypeFilesName : autoNodeTypesFiles)
{
InputStream inXml;
try
{
inXml = configService.getInputStream(nodeTypeFilesName);
}
catch (Exception e)
{
throw new RepositoryException(e);
}
if (log.isDebugEnabled())
{
log.debug("Trying register node types from xml-file " + nodeTypeFilesName);
}
ntManager.registerNodeTypes(inXml, ExtendedNodeTypeManager.IGNORE_IF_EXISTS);
if (log.isDebugEnabled())
{
log.debug("Node types is registered from xml-file " + nodeTypeFilesName);
}
}
List<String> defaultNodeTypesFiles = plugin.getNodeTypesFiles(repositoryName);
if (defaultNodeTypesFiles != null && defaultNodeTypesFiles.size() > 0)
{
for (String nodeTypeFilesName : defaultNodeTypesFiles)
{
InputStream inXml;
try
{
inXml = configService.getInputStream(nodeTypeFilesName);
}
catch (Exception e)
{
throw new RepositoryException(e);
}
log.info("Trying register node types (" + repositoryName + ") from xml-file " + nodeTypeFilesName);
ntManager.registerNodeTypes(inXml, ExtendedNodeTypeManager.IGNORE_IF_EXISTS);
log.info("Node types is registered (" + repositoryName + ") from xml-file " + nodeTypeFilesName);
}
}
}
}
}
/**
* Remove repository with specific name.
*
* @param name
* repository name
* @param allowRemoveDefaultRepository
* allow to remove default repository
* @throws RepositoryException
* if any Exception occurred
*/
private void removeRepository(String name, boolean allowRemoveDefaultRepository) throws RepositoryException
{
if (!canRemoveRepository(name, allowRemoveDefaultRepository))
throw new RepositoryException("Repository " + name + " in use. If you want to "
+ " remove repository close all open sessions");
try
{
RepositoryEntry repconfig = config.getRepositoryConfiguration(name);
RepositoryImpl repo = (RepositoryImpl)getRepository(name);
for (WorkspaceEntry wsEntry : repconfig.getWorkspaceEntries())
{
repo.internalRemoveWorkspace(wsEntry.getName());
}
repconfig.getWorkspaceEntries().clear();
RepositoryContainer repositoryContainer = repositoryContainers.get(name);
repositoryContainer.stop();
repositoryContainers.remove(name);
config.getRepositoryConfigurations().remove(repconfig);
}
catch (RepositoryConfigurationException e)
{
throw new RepositoryException(e);
}
catch (Exception e)
{
throw new RepositoryException(e);
}
}
/**
* Indicates if repository with specific name can be removed.
*
* @param name
* repository name
* @param allowRemoveDefaultRepository
* allow to remove default repository
* @return
* true if repository can be removed or false in other case
* @throws RepositoryException
* if any Exception occurred
*/
private boolean canRemoveRepository(String name, boolean allowRemoveDefaultRepository) throws RepositoryException
{
if (!allowRemoveDefaultRepository && name.equals(config.getDefaultRepositoryName()))
{
return false;
}
RepositoryImpl repo = (RepositoryImpl)getRepository(name);
try
{
RepositoryEntry repconfig = config.getRepositoryConfiguration(name);
for (WorkspaceEntry wsEntry : repconfig.getWorkspaceEntries())
{
// Check non system workspaces
if (!repo.getSystemWorkspaceName().equals(wsEntry.getName()) && !repo.canRemoveWorkspace(wsEntry.getName()))
return false;
}
// check system workspace
RepositoryContainer repositoryContainer = repositoryContainers.get(name);
SessionRegistry sessionRegistry =
(SessionRegistry)repositoryContainer.getComponentInstance(SessionRegistry.class);
if (sessionRegistry == null || sessionRegistry.isInUse(repo.getSystemWorkspaceName()))
return false;
}
catch (RepositoryConfigurationException e)
{
throw new RepositoryException(e);
}
return true;
}
/**
* Manager start changes plugins.
*/
public class ManagerStartChanges
{
private Map<StorageKey, ItemsPersistenceListener> startChangesListeners =
new HashMap<StorageKey, ItemsPersistenceListener>();
/**
* Add new StartChangesPlugin to manager.
*
* @param plugin
* The StartChangesPlugin
*/
public void addPlugin(RepositoryChangesListenerRegisterPlugin plugin)
{
String repositoryName = plugin.getRepositoryName();
String workspaces = plugin.getWorkspaces();
String listenerClassName = plugin.getListenerClassName();
if (repositoryName != null && workspaces != null && listenerClassName != null)
{
StringTokenizer listTokenizer = new StringTokenizer(workspaces, ",");
while (listTokenizer.hasMoreTokens())
{
String wsName = listTokenizer.nextToken();
startChangesListeners.put(new StorageKey(repositoryName, wsName, listenerClassName), null);
}
}
}
/**
* Register listeners.
*
* @param repositoryContainer
* @throws ClassNotFoundException
*/
public void registerListeners(RepositoryContainer repositoryContainer)
{
Iterator<StorageKey> storageKeys = startChangesListeners.keySet().iterator();
while (storageKeys.hasNext())
{
StorageKey sk = storageKeys.next();
if (sk.getRepositoryName().equals(repositoryContainer.getName()))
{
WorkspaceContainer wc = repositoryContainer.getWorkspaceContainer(sk.getWorkspaceName());
try
{
Class<?> listenerType = Class.forName(sk.getListenerClassName());
wc.registerComponentImplementation(listenerType);
ItemsPersistenceListener listener =
(ItemsPersistenceListener)wc.getComponentInstanceOfType(listenerType);
startChangesListeners.put(sk, listener);
}
catch (ClassNotFoundException e)
{
log.error("Can not register listener " + e.getMessage());
}
}
}
}
/**
* Cleanup changes.
*
*/
public void cleanup()
{
startChangesListeners.clear();
}
/**
* Will be used as key for startChangesListeners.
*
*/
private class StorageKey
{
private final String repositoryName;
private final String workspaceName;
private final String listenerClassName;
/**
* StorageKey constructor.
*
* @param repositoryName
* The repository name
* @param workspaceName
* The workspace name
*/
public StorageKey(String repositoryName, String workspaceName, String listenerClassName)
{
this.repositoryName = repositoryName;
this.workspaceName = workspaceName;
this.listenerClassName = listenerClassName;
}
/**
* {@inheritDoc}
*/
@Override
public boolean equals(Object o)
{
StorageKey k = (StorageKey)o;
return repositoryName.equals(k.repositoryName) && workspaceName.equals(k.workspaceName)
&& listenerClassName.equals(k.listenerClassName);
}
/**
* {@inheritDoc}
*/
@Override
public int hashCode()
{
return repositoryName.hashCode() ^ workspaceName.hashCode() ^ listenerClassName.hashCode();
}
/**
* Return repository name.
*
* @return The repository name
*/
public String getRepositoryName()
{
return repositoryName;
}
/**
* Return workspace name.
*
* @return The workspace name
*/
public String getWorkspaceName()
{
return workspaceName;
}
/**
* Return listener class name.
*
* @return The listener class name
*/
public String getListenerClassName()
{
return listenerClassName;
}
}
}
}