| /* |
| * 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.rewriter; |
| |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.SAXException; |
| |
| /** |
| * The <code>Generator</code> interface defines the start of a rewriter pipeline. |
| * A generator is not a component managed by the container (OSGi). A |
| * {@link GeneratorFactory} is a service managed by the container which creates |
| * generator instances on demand. |
| */ |
| public interface Generator { |
| |
| /** |
| * Initialize this component. |
| * @param context The invocation context. |
| * @param config The configuration for this component. |
| */ |
| void init(ProcessingContext context, ProcessingComponentConfiguration config) |
| throws IOException; |
| |
| |
| /** |
| * Set the content handler the generator should stream to. |
| * @param handler A transformer or serializer. |
| */ |
| void setContentHandler(ContentHandler handler); |
| |
| /** |
| * Get the writer to write the output to. |
| * @return A print writer. |
| */ |
| PrintWriter getWriter(); |
| |
| /** |
| * Notify the generator that parsing is finished. |
| */ |
| void finished() throws IOException, SAXException; |
| |
| /** |
| * Dispose the generator. |
| * This method is always invoked by the rewriter in order to |
| * allow the generator to release any resources etc. After |
| * this method has been called the instance is considered |
| * unusable. |
| */ |
| void dispose(); |
| } |