/*
* 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.cocoon.portal.util;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.apache.avalon.framework.service.ServiceException;
import org.apache.avalon.framework.service.ServiceManager;
import org.apache.cocoon.ProcessingException;
import org.apache.cocoon.components.variables.VariableResolver;
import org.apache.cocoon.components.variables.VariableResolverFactory;
import org.apache.cocoon.sitemap.PatternException;
/**
* @version $Id: InputModuleHelper.java 433543 2006-08-22 06:22:54Z crossley $
*/
public class InputModuleHelper {
/** Service manager. */
protected final ServiceManager manager;
protected final VariableResolverFactory variableFactory;
protected final Map processedPatterns = new HashMap();
public InputModuleHelper(ServiceManager serviceManager)
throws ServiceException {
this.manager = serviceManager;
this.variableFactory = (VariableResolverFactory) this.manager.lookup(VariableResolverFactory.ROLE);
}
public void dispose() {
final Iterator i = this.processedPatterns.values().iterator();
while ( i.hasNext() ) {
final VariableResolver resolver = (VariableResolver)i.next();
this.variableFactory.release(resolver);
}
this.processedPatterns.clear();
this.manager.release(this.variableFactory);
}
public String resolve(String value) throws ProcessingException {
VariableResolver resolver = null;
try {
resolver = this.variableFactory.lookup( value );
return resolver.resolve();
} catch (PatternException e) {
throw new ProcessingException("Error parsing pattern: " + value, e);
} finally {
this.variableFactory.release(resolver);
}
}
public VariableResolver getVariableResolver(String value) throws ProcessingException {
VariableResolver resolver = (VariableResolver)this.processedPatterns.get(value);
if ( resolver == null ) {
try {
resolver = this.variableFactory.lookup( value );
this.processedPatterns.put(value, resolver);
} catch (PatternException e) {
throw new ProcessingException("Error parsing pattern: " + value, e);
}
}
return resolver;
}
}