/*
* 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.config;
import org.exoplatform.commons.utils.ClassLoading;
import org.exoplatform.commons.utils.PrivilegedFileHelper;
import org.exoplatform.commons.utils.SecurityHelper;
import org.exoplatform.container.configuration.ConfigurationManager;
import org.exoplatform.container.xml.InitParams;
import org.exoplatform.container.xml.ValueParam;
import org.exoplatform.services.jcr.config.ConfigurationPersister;
import org.exoplatform.services.jcr.config.RepositoryConfigurationException;
import org.exoplatform.services.jcr.config.RepositoryServiceConfiguration;
import org.exoplatform.services.jcr.impl.util.io.DirectoryHelper;
import org.exoplatform.services.naming.InitialContextInitializer;
import org.jibx.runtime.BindingDirectory;
import org.jibx.runtime.IBindingFactory;
import org.jibx.runtime.IMarshallingContext;
import org.jibx.runtime.JiBXException;
import org.picocontainer.Startable;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URL;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import javax.jcr.RepositoryException;
/**
* Created by The eXo Platform SAS.
*
* @author Gennady Azarenkov
* @version $Id: RepositoryServiceConfigurationImpl.java 12841 2007-02-16 08:58:38Z peterit $
*/
public class RepositoryServiceConfigurationImpl extends RepositoryServiceConfiguration implements Startable
{
protected ValueParam param;
protected ConfigurationManager configurationService;
private ConfigurationPersister configurationPersister;
private final List<String> configExtensionPaths = new CopyOnWriteArrayList<String>();
/**
* Max number of backup files
*/
private final int maxBackupFiles;
/**
* Current backup file index
*/
private int indexBackupFile = 1;
/**
* Default number of max backup files
*/
public static final int DEFAULT_MAX_BACKUP_FILES = 3;
public RepositoryServiceConfigurationImpl(InitParams params, ConfigurationManager configurationService,
InitialContextInitializer initialContextInitializer) throws RepositoryConfigurationException
{
param = params.getValueParam("conf-path");
ValueParam valueBackupFiles = params.getValueParam("max-backup-files");
maxBackupFiles =
valueBackupFiles == null ? DEFAULT_MAX_BACKUP_FILES : Integer.valueOf(valueBackupFiles.getValue());
if (params.getPropertiesParam("working-conf") != null)
{
String cn = params.getPropertiesParam("working-conf").getProperty("persister-class-name");
if (cn == null)
{
cn = params.getPropertiesParam("working-conf").getProperty("persisterClassName"); // try old name, pre 1.9
}
if (cn != null)
{
try
{
Class<ConfigurationPersister> configurationPersisterClass =
(Class<ConfigurationPersister>)ClassLoading.forName(cn, this);
configurationPersister = configurationPersisterClass.newInstance();
configurationPersister.init(params.getPropertiesParam("working-conf"));
}
catch (InstantiationException e)
{
throw new RepositoryConfigurationException(e.getLocalizedMessage(), e);
}
catch (IllegalAccessException e)
{
throw new RepositoryConfigurationException(e.getLocalizedMessage(), e);
}
catch (ClassNotFoundException e)
{
throw new RepositoryConfigurationException(e.getLocalizedMessage(), e);
}
}
}
this.configurationService = configurationService;
}
/**
* Allows to add new configuration paths
*/
public void addConfig(RepositoryServiceConfigurationPlugin plugin)
{
configExtensionPaths.add(plugin.getConfPath());
}
/*
* (non-Javadoc)
* @see org.exoplatform.services.jcr.config.RepositoryServiceConfiguration#isRetainable()
*/
@Override
public boolean isRetainable()
{
if (configurationPersister != null)
{
return true;
}
String strfileUri = param.getValue();
URL fileURL;
try
{
fileURL = configurationService.getURL(strfileUri);
}
catch (Exception e)
{
return false;
}
return fileURL.getProtocol().equals("file");
}
/**
* Retain configuration of JCR If configurationPersister is configured it write data in to the
* persister otherwise it try to save configuration in file
*
* @throws RepositoryException
*/
@Override
public synchronized void retain() throws RepositoryException
{
try
{
if (!isRetainable())
throw new RepositoryException("Unsupported configuration place "
+ configurationService.getURL(param.getValue())
+ " If you want to save configuration, start repository from standalone file."
+ " Or persister-class-name not configured");
OutputStream saveStream = null;
if (configurationPersister != null)
{
saveStream = new ByteArrayOutputStream();
}
else
{
URL filePath = configurationService.getURL(param.getValue());
final File sourceConfig = new File(filePath.toURI());
final File backUp = new File(sourceConfig.getAbsoluteFile() + "." + indexBackupFile++);
if (indexBackupFile > maxBackupFiles)
{
indexBackupFile = 1;
}
try
{
SecurityHelper.doPrivilegedIOExceptionAction(new PrivilegedExceptionAction<Void>()
{
public Void run() throws IOException
{
DirectoryHelper.deleteDstAndRename(sourceConfig, backUp);
return null;
}
});
}
catch (IOException ioe)
{
throw new RepositoryException("Can't back up configuration on path "
+ PrivilegedFileHelper.getAbsolutePath(sourceConfig), ioe);
}
saveStream = PrivilegedFileHelper.fileOutputStream(sourceConfig);
}
IBindingFactory bfact;
try
{
bfact = SecurityHelper.doPrivilegedExceptionAction(new PrivilegedExceptionAction<IBindingFactory>()
{
public IBindingFactory run() throws Exception
{
return BindingDirectory.getFactory(RepositoryServiceConfiguration.class);
}
});
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof JiBXException)
{
throw (JiBXException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
IMarshallingContext mctx = bfact.createMarshallingContext();
mctx.marshalDocument(this, "ISO-8859-1", null, saveStream);
saveStream.close();
// writing configuration in to the persister
if (configurationPersister != null)
{
configurationPersister.write(new ByteArrayInputStream(((ByteArrayOutputStream)saveStream).toByteArray()));
}
}
catch (JiBXException e)
{
throw new RepositoryException(e);
}
catch (FileNotFoundException e)
{
throw new RepositoryException(e);
}
catch (IOException e)
{
throw new RepositoryException(e);
}
catch (RepositoryConfigurationException e)
{
throw new RepositoryException(e);
}
catch (Exception e)
{
throw new RepositoryException(e);
}
}
/**
* {@inheritDoc}
*/
public void start()
{
try
{
// Start from extensions first
String[] paths = configExtensionPaths.toArray(new String[configExtensionPaths.size()]);
for (int i = paths.length - 1; i >= 0; i--)
{
// We start from the last one because as it is the one with highest priority
if (i == paths.length - 1)
{
init(configurationService.getInputStream(paths[i]));
}
else
{
merge(configurationService.getInputStream(paths[i]));
}
}
// Then from normal config
if (configExtensionPaths.isEmpty())
{
init(configurationService.getInputStream(param.getValue()));
}
else
{
merge(configurationService.getInputStream(param.getValue()));
}
// Then from config from persister
if (configurationPersister != null)
{
if (configurationPersister.hasConfig())
{
merge(configurationPersister.read());
}
// Store the merged configuration
retain();
}
}
catch (RepositoryConfigurationException e)
{
throw new RuntimeException(e);
}
catch (Exception e)
{
throw new RuntimeException(new RepositoryConfigurationException("Fail to init from xml! Reason: " + e, e));
}
}
/**
* {@inheritDoc}
*/
public void stop()
{
}
}