com.cyclopsgroup.waterview.ui.view.pub.DefaultNavigationNode.java Source code

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Here is the source code for com.cyclopsgroup.waterview.ui.view.pub.DefaultNavigationNode.java

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/* ==========================================================================
 * Copyright 2002-2005 Cyclops Group Community
 *
 * Licensed under the COMMON DEVELOPMENT AND DISTRIBUTION LICENSE
 * (CDDL) Version 1.0 (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.opensource.org/licenses/cddl1.txt
 *
 *  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 com.cyclopsgroup.waterview.ui.view.pub;

import org.apache.commons.lang.StringUtils;

import com.cyclopsgroup.waterview.BaseServiceable;
import com.cyclopsgroup.waterview.Context;
import com.cyclopsgroup.waterview.Module;
import com.cyclopsgroup.waterview.RuntimeData;
import com.cyclopsgroup.waterview.navigator.NavigatorService;
import com.cyclopsgroup.waterview.web.RuntimeTreeNode;

/**
 * @author <a href="mailto:jiaqi.guo@gmail.com">Jiaqi Guo</a>
 *
 * Module for default navigation node
 */
public class DefaultNavigationNode extends BaseServiceable implements Module {

    /**
     * Overwrite or implement method execute()
     *
     * @see com.cyclopsgroup.waterview.Module#execute(com.cyclopsgroup.waterview.RuntimeData, com.cyclopsgroup.waterview.Context)
     */
    public void execute(RuntimeData data, Context context) throws Exception {
        RuntimeTreeNode navigationNode = null;

        String nodeId = data.getParameters().getString("node_id");
        if (StringUtils.isNotEmpty(nodeId)) {
            NavigatorService nav = (NavigatorService) lookup(NavigatorService.ROLE);
            navigationNode = nav.getRuntimeNode(data).getNodeById(nodeId);
        }

        if (navigationNode == null) {
            navigationNode = (RuntimeTreeNode) context.get("navigationNode");
        }

        if (navigationNode == null) {
            throw new IllegalArgumentException("No node is specified");
        }

        context.put("navigationNode", navigationNode);

        String action = data.getParameters().getString("node_action");
        if (StringUtils.equals("expand", action)) {
            navigationNode.expand(data);
        } else if (StringUtils.equals("collapse", action)) {
            navigationNode.collapse();
        }
    }
}