/*
* 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.sling.pipes;
import org.apache.sling.api.resource.Resource;
import java.util.Iterator;
/**
* executes a pipe referred in the configuration
*/
public class ReferencePipe extends BasePipe {
public static final String RESOURCE_TYPE = "slingPipes/reference";
protected Pipe reference;
public ReferencePipe(Plumber plumber, Resource resource) throws Exception {
super(plumber, resource);
Resource pipeResource = resolver.getResource(getExpr());
if (pipeResource == null){
throw new Exception("Reference configuration error: There is no resource at " + getExpr());
}
reference = plumber.getPipe(pipeResource);
if (reference == null){
throw new Exception("Unable to build out pipe out of " + getPath());
}
reference.setReferrer(this);
}
@Override
public void setParent(ContainerPipe parent) {
super.setParent(parent);
reference.setParent(parent);
}
@Override
public void setBindings(PipeBindings bindings) {
reference.setBindings(bindings);
}
@Override
public Iterator<Resource> getOutput() {
return reference.getOutput();
}
@Override
public Object getOutputBinding() {
return reference.getOutputBinding();
}
@Override
public boolean modifiesContent() {
return reference.modifiesContent();
}
}