alfresco-community-repo/source/java/org/alfresco/web/config/NavigationElementReader.java
2005-12-08 07:13:07 +00:00

81 lines
2.7 KiB
Java

/*
* Copyright (C) 2005 Alfresco, Inc.
*
* Licensed under the Mozilla Public License version 1.1
* with a permitted attribution clause. You may obtain a
* copy of the License at
*
* http://www.alfresco.org/legal/license.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 org.alfresco.web.config;
import java.util.Iterator;
import org.alfresco.config.ConfigElement;
import org.alfresco.config.ConfigException;
import org.alfresco.config.xml.elementreader.ConfigElementReader;
import org.dom4j.Element;
/**
* Custom element reader to parse config for navigation overrides
*
* @author gavinc
*/
public class NavigationElementReader implements ConfigElementReader
{
public static final String ELEMENT_NAVIGATION = "navigation";
public static final String ELEMENT_OVERRIDE = "override";
public static final String ATTR_FROM_VIEWID = "from-view-id";
public static final String ATTR_FROM_OUTCOME = "from-outcome";
public static final String ATTR_TO_VIEWID = "to-view-id";
public static final String ATTR_TO_OUTCOME = "to-outcome";
/**
* @see org.alfresco.config.xml.elementreader.ConfigElementReader#parse(org.dom4j.Element)
*/
public ConfigElement parse(Element element)
{
NavigationConfigElement configElement = null;
if (element != null)
{
String name = element.getName();
if (ELEMENT_NAVIGATION.equals(name) == false)
{
throw new ConfigException("NavigationElementReader can only parse " +
ELEMENT_NAVIGATION + "elements, " + "the element passed was '" +
name + "'");
}
configElement = new NavigationConfigElement();
// go through the items to show
Iterator<Element> items = element.elementIterator();
while (items.hasNext())
{
Element item = items.next();
// only process the override elements
if (ELEMENT_OVERRIDE.equals(item.getName()))
{
String fromViewId = item.attributeValue(ATTR_FROM_VIEWID);
String fromOutcome = item.attributeValue(ATTR_FROM_OUTCOME);
String toViewId = item.attributeValue(ATTR_TO_VIEWID);
String toOutcome = item.attributeValue(ATTR_TO_OUTCOME);
configElement.addOverride(fromViewId, fromOutcome, toViewId, toOutcome);
}
}
}
return configElement;
}
}