org.exoplatform.services.command.impl.CommonsXMLConfigurationPlugin.java Source code

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Here is the source code for org.exoplatform.services.command.impl.CommonsXMLConfigurationPlugin.java

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/*
 * 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.command.impl;

import org.apache.commons.chain.config.ConfigParser;
import org.exoplatform.commons.utils.SecurityHelper;
import org.exoplatform.container.component.BaseComponentPlugin;
import org.exoplatform.container.configuration.ConfigurationManager;
import org.exoplatform.container.xml.InitParams;
import org.exoplatform.container.xml.ValueParam;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;

import java.net.URL;
import java.security.PrivilegedAction;
import java.security.PrivilegedExceptionAction;

/**
 * Created by The eXo Platform SAS.<br/> The plugin for configuring
 * command/chain catalog using "native" Apache Commons Chain's XML file
 * 
 * @author <a href="mailto:gennady.azarenkov@exoplatform.com">Gennady
 *         Azarenkov</a>
 * @version $Id: CommonsXMLConfigurationPlugin.java 9846 2006-10-27 11:03:37Z
 *          geaz $
 */

public class CommonsXMLConfigurationPlugin extends BaseComponentPlugin {

    // protected Catalog defaultCatalog;

    private static final Log LOG = ExoLogger.getLogger("exo.kernel.component.cache.CommonsXMLConfigurationPlugin");

    public CommonsXMLConfigurationPlugin(InitParams params, ConfigurationManager configurationManager)
            throws Exception {
        ValueParam confFile = params.getValueParam("config-file");
        if (confFile != null) {
            final String path = confFile.getValue();
            final ConfigParser parser = new ConfigParser();
            // may work for StandaloneContainer

            URL res = SecurityHelper.doPrivilegedAction(new PrivilegedAction<URL>() {
                public URL run() {
                    return Thread.currentThread().getContextClassLoader().getResource(path);
                }
            });

            // for PortalContainer
            if (res == null)
                res = configurationManager.getResource(path);
            if (res == null)
                throw new Exception("Resource not found " + path);
            LOG.info("Catalog configuration found at " + res);

            final URL fRes = res;
            SecurityHelper.doPrivilegedExceptionAction(new PrivilegedExceptionAction<Void>() {
                public Void run() throws Exception {
                    parser.parse(fRes);
                    return null;
                }
            });
        }

    }
}