// Copyright 2005 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.tapestry.enhance;
import java.util.Iterator;
import java.util.Map;
import org.apache.hivemind.ErrorLog;
import org.apache.tapestry.spec.IComponentSpecification;
import org.apache.tapestry.spec.InjectSpecification;
/**
* Iterates over the {@link org.apache.tapestry.spec.InjectSpecification}s and locates and
* delegates to a {@link org.apache.tapestry.enhance.InjectEnhancementWorker} for each one.
*
* @author Howard M. Lewis Ship
* @since 4.0
*/
public class DispatchToInjectWorker implements EnhancementWorker
{
private ErrorLog _errorLog;
private Map _injectWorkers;
public void performEnhancement(EnhancementOperation op, IComponentSpecification spec)
{
Iterator i = spec.getInjectSpecifications().iterator();
while (i.hasNext())
{
InjectSpecification is = (InjectSpecification) i.next();
invokeWorker(op, is);
}
}
private void invokeWorker(EnhancementOperation op, InjectSpecification spec)
{
try
{
InjectEnhancementWorker worker = (InjectEnhancementWorker) _injectWorkers.get(spec
.getType());
if (worker == null)
{
_errorLog.error(EnhanceMessages.unknownInjectType(spec.getProperty(), spec
.getType()), spec.getLocation(), null);
return;
}
worker.performEnhancement(op, spec);
}
catch (Exception ex)
{
_errorLog.error(EnhanceMessages.errorAddingProperty(spec.getProperty(), op
.getBaseClass(), ex), spec.getLocation(), ex);
}
}
public void setErrorLog(ErrorLog errorLog)
{
_errorLog = errorLog;
}
public void setInjectWorkers(Map injectWorkers)
{
_injectWorkers = injectWorkers;
}
}