Package org.apache.lenya.cms.cocoon.components.modules.input

Source Code of org.apache.lenya.cms.cocoon.components.modules.input.SitetreeModule

/*
* 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.
*
*/

package org.apache.lenya.cms.cocoon.components.modules.input;

import java.util.Arrays;
import java.util.Iterator;
import java.util.Map;

import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.service.ServiceSelector;
import org.apache.cocoon.environment.ObjectModelHelper;
import org.apache.cocoon.environment.Request;
import org.apache.lenya.cms.publication.DocumentFactory;
import org.apache.lenya.cms.publication.DocumentUtil;
import org.apache.lenya.cms.publication.PageEnvelope;
import org.apache.lenya.cms.publication.Publication;
import org.apache.lenya.cms.repository.RepositoryUtil;
import org.apache.lenya.cms.repository.Session;
import org.apache.lenya.cms.site.SiteManager;
import org.apache.lenya.cms.site.tree.SiteTree;
import org.apache.lenya.cms.site.tree.TreeSiteManager;

/**
* Module for sitetree access.
*
* @version $Id: SitetreeModule.java 159584 2005-03-31 12:49:41Z andreas $
*/
public class SitetreeModule extends AbstractPageEnvelopeModule {

    /**
     * <code>AUTHORING_NODE</code> The authoring node
     */
    public static final String AUTHORING_NODE = "authoring-node";
    /**
     * <code>LIVE_NODE</code> The live node
     */
    public static final String LIVE_NODE = "live-node";
    /**
     * <code>TRASH_NODE</code> The trash node
     */
    public static final String TRASH_NODE = "trash-node";
    /**
     * <code>ARCHIVE_NODE</code> The archive node
     */
    public static final String ARCHIVE_NODE = "archive-node";

    protected static final String[] PARAMETER_NAMES = { AUTHORING_NODE, LIVE_NODE, TRASH_NODE,
            ARCHIVE_NODE };

    /**
     * @see org.apache.cocoon.components.modules.input.InputModule#getAttribute(java.lang.String,
     *      org.apache.avalon.framework.configuration.Configuration,
     *      java.util.Map)
     */
    public Object getAttribute(String name, Configuration modeConf, Map objectModel)
            throws ConfigurationException {

        Object value = null;
        ServiceSelector selector = null;
        TreeSiteManager _manager = null;

        try {
            PageEnvelope envelope = getEnvelope(objectModel, name);
            Publication publication = envelope.getPublication();
           
            selector = (ServiceSelector) this.manager.lookup(SiteManager.ROLE + "Selector");
            _manager = (TreeSiteManager) selector.select(publication.getSiteManagerHint());
           
            Request request = ObjectModelHelper.getRequest(objectModel);
            Session session = RepositoryUtil.getSession(this.manager, request);
            DocumentFactory map = DocumentUtil.createDocumentFactory(this.manager, session);

            if (name.equals(AUTHORING_NODE)) {
                SiteTree authoringTree = _manager.getTree(map,
                        publication,
                        Publication.AUTHORING_AREA);
                value = authoringTree.getNode(envelope.getDocument().getPath());
            }

            if (name.equals(LIVE_NODE)) {
                SiteTree liveTree = _manager.getTree(map, publication, Publication.LIVE_AREA);
                value = liveTree.getNode(envelope.getDocument().getPath());
            }

            if (name.equals(TRASH_NODE)) {
                SiteTree trashTree = _manager.getTree(map, publication, Publication.TRASH_AREA);
                value = trashTree.getNode(envelope.getDocument().getPath());
            }

            if (name.equals(ARCHIVE_NODE)) {
                SiteTree archiveTree = _manager.getTree(map, publication, Publication.ARCHIVE_AREA);
                value = archiveTree.getNode(envelope.getDocument().getPath());
            }
        } catch (Exception e) {
            throw new ConfigurationException("Obtaining value for [" + name + "] failed: ", e);
        }
        finally {
            if (selector != null) {
                if (_manager != null) {
                    selector.release(_manager);
                }
                this.manager.release(selector);
            }
        }

        return value;
    }

    /**
     * @see org.apache.cocoon.components.modules.input.InputModule#getAttributeNames(org.apache.avalon.framework.configuration.Configuration,
     *      java.util.Map)
     */
    public Iterator getAttributeNames(Configuration modeConf, Map objectModel)
            throws ConfigurationException {
        return Arrays.asList(PARAMETER_NAMES).iterator();
    }

    /**
     * @see org.apache.cocoon.components.modules.input.InputModule#getAttributeValues(java.lang.String,
     *      org.apache.avalon.framework.configuration.Configuration,
     *      java.util.Map)
     */
    public Object[] getAttributeValues(String name, Configuration modeConf, Map objectModel)
            throws ConfigurationException {
        Object[] objects = { getAttribute(name, modeConf, objectModel) };
        return objects;
    }

}
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