trunk/src/java/org/apache/lenya/cms/cocoon/acting/ReservedCheckoutTestAction.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */

/* $Id$  */

package org.apache.lenya.cms.cocoon.acting;

import java.util.HashMap;
import java.util.Map;

import org.apache.avalon.framework.parameters.Parameters;
import org.apache.cocoon.environment.Redirector;
import org.apache.cocoon.environment.SourceResolver;
import org.apache.lenya.cms.repository.Node;
import org.apache.lenya.cms.repository.RepositoryException;


/**
 * An action that tests if a document is already checked out by a given user.
 * If it isn't, a check out will be tried.
 */

public class ReservedCheckoutTestAction extends RevisionControllerAction {

    /**
	 * @see org.apache.cocoon.acting.Action#act(org.apache.cocoon.environment.Redirector, org.apache.cocoon.environment.SourceResolver, java.util.Map, java.lang.String, org.apache.avalon.framework.parameters.Parameters)
	 */
	public Map act(Redirector redirector, SourceResolver resolver, Map objectModel, String src,
        Parameters parameters) throws Exception {
        super.act(redirector, resolver, objectModel, src, parameters);

        HashMap actionMap = new HashMap();

        try {
            Node node = getNode();

			if (!node.isCheckedOut() || !node.getCheckoutUserId().equals(getUsername())) {
				//check out
			    getNode().checkout();
			}
		} catch (RepositoryException e) {
			actionMap.put("exception", "RepositoryException");
			actionMap.put("filename", getNode().getSourceURI());

			return actionMap;
		} catch (Exception e) {
			actionMap.put("exception", "genericException");
			actionMap.put("filename", getNode().getSourceURI());
			actionMap.put("message", e.getMessage());
			getLogger().error(".act(): The node " + getNode().getSourceURI() + " couldn't be checked out: ", e);

			return actionMap;
		}
        return null;
    }
}