org.alfresco.repo.node.cleanup.NodeCleanupRegistry.java Source code

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Here is the source code for org.alfresco.repo.node.cleanup.NodeCleanupRegistry.java

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/*
 * #%L
 * Alfresco Repository
 * %%
 * Copyright (C) 2005 - 2016 Alfresco Software Limited
 * %%
 * This file is part of the Alfresco software. 
 * If the software was purchased under a paid Alfresco license, the terms of 
 * the paid license agreement will prevail.  Otherwise, the software is 
 * provided under the following open source license terms:
 * 
 * Alfresco 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 3 of the License, or
 * (at your option) any later version.
 * 
 * Alfresco 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 Alfresco. If not, see <http://www.gnu.org/licenses/>.
 * #L%
 */
package org.alfresco.repo.node.cleanup;

import java.util.ArrayList;
import java.util.List;

import org.alfresco.error.StackTraceUtil;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * A {@link NodeCleanupWorker worker} that aggregates any number of
 * {@link #register(NodeCleanupWorker) registered} workers.
 * 
 * @author Derek Hulley
 * @since 2.2 SP2
 */
public class NodeCleanupRegistry implements NodeCleanupWorker {
    private static Log logger = LogFactory.getLog(NodeCleanupRegistry.class);

    private List<NodeCleanupWorker> cleanupWorkers;

    public NodeCleanupRegistry() {
        cleanupWorkers = new ArrayList<NodeCleanupWorker>(5);
    }

    public void register(NodeCleanupWorker cleanupWorker) {
        cleanupWorkers.add(cleanupWorker);
    }

    /**
     * Calls all registered cleaners in order, without transactions or authentication.
     * The return messages are aggregated.
     */
    public List<String> doClean() {
        List<String> results = new ArrayList<String>(100);
        for (NodeCleanupWorker cleanupWorker : cleanupWorkers) {
            try {
                results.addAll(cleanupWorker.doClean());
            } catch (Throwable e) {
                // This failed.  The cleaner should be handling this, but we can't guarantee it.
                logger.error("NodeCleanupWork doesn't handle all exception conditions: "
                        + cleanupWorker.getClass().getName());
                StringBuilder sb = new StringBuilder(1024);
                StackTraceUtil.buildStackTrace("Node cleanup failed: " + "   Worker: "
                        + cleanupWorker.getClass().getName() + "\n" + "   Error:  " + e.getMessage(),
                        e.getStackTrace(), sb, 0);
                results.add(sb.toString());
            }
        }
        return results;
    }
}