/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed 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.cocoon.components.treeprocessor.sitemap;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.thread.ThreadSafe;
import org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNodeBuilder;
import org.apache.cocoon.components.treeprocessor.ProcessingNode;
import org.apache.cocoon.components.treeprocessor.ProcessingNodeBuilder;
/**
* Builds all nodes below the top-level <sitemap> element, and returns the
* <pipelines> node. There is no node for >sitemap< since no processing
* occurs at this level.
*
* @author <a href="mailto:sylvain@apache.org">Sylvain Wallez</a>
* @version CVS $Id: SitemapNodeBuilder.java,v 1.3 2004/03/05 13:02:52 bdelacretaz Exp $
*/
public class SitemapNodeBuilder extends AbstractParentProcessingNodeBuilder implements ThreadSafe {
// Name of children that have to be built in a particular order.
// For example, views have to be built before resources and both before pipelines.
private static final String[] orderedNames = { "components", "views", "resources" };
public ProcessingNode buildNode(Configuration config) throws Exception {
// Start by explicitely ordered children
for (int i = 0; i < orderedNames.length; i++) {
Configuration childConfig = config.getChild(orderedNames[i], false);
if (childConfig != null) {
ProcessingNodeBuilder builder = this.treeBuilder.createNodeBuilder(childConfig);
// Don't build them since "pipelines" is not present in this list
builder.buildNode(childConfig);
}
}
ProcessingNode pipelines = null;
// Now build all those that have no particular order
Configuration[] childConfigs = config.getChildren();
loop: for (int i = 0; i < childConfigs.length; i++) {
Configuration childConfig = childConfigs[i];
if (isChild(childConfig)) {
// Is it in the ordered list ?
for (int j = 0; j < orderedNames.length; j++) {
if (orderedNames[j].equals(childConfig.getName())) {
// yep : already built above
continue loop;
}
}
ProcessingNodeBuilder builder = this.treeBuilder.createNodeBuilder(childConfig);
ProcessingNode node = builder.buildNode(childConfig);
if (node instanceof PipelinesNode) {
if (pipelines != null) {
String msg = "Only one 'pipelines' is allowed, at " + childConfig.getLocation();
throw new ConfigurationException(msg);
}
pipelines = node;
}
}
}
if (pipelines == null) {
String msg = "Invalid sitemap : there must be a 'pipelines' at " + config.getLocation();
throw new ConfigurationException(msg);
}
return pipelines;
}
}