michael@0: /*
michael@0:  * ====================================================================
michael@0:  * Licensed to the Apache Software Foundation (ASF) under one
michael@0:  * or more contributor license agreements.  See the NOTICE file
michael@0:  * distributed with this work for additional information
michael@0:  * regarding copyright ownership.  The ASF licenses this file
michael@0:  * to you under the Apache License, Version 2.0 (the
michael@0:  * "License"); you may not use this file except in compliance
michael@0:  * with the License.  You may obtain a copy of the License at
michael@0:  *
michael@0:  *   http://www.apache.org/licenses/LICENSE-2.0
michael@0:  *
michael@0:  * Unless required by applicable law or agreed to in writing,
michael@0:  * software distributed under the License is distributed on an
michael@0:  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
michael@0:  * KIND, either express or implied.  See the License for the
michael@0:  * specific language governing permissions and limitations
michael@0:  * under the License.
michael@0:  * ====================================================================
michael@0:  *
michael@0:  * This software consists of voluntary contributions made by many
michael@0:  * individuals on behalf of the Apache Software Foundation.  For more
michael@0:  * information on the Apache Software Foundation, please see
michael@0:  * <http://www.apache.org/>.
michael@0:  *
michael@0:  */
michael@0: 
michael@0: package ch.boye.httpclientandroidlib.entity;
michael@0: 
michael@0: import java.io.IOException;
michael@0: import java.io.InputStream;
michael@0: import java.io.OutputStream;
michael@0: 
michael@0: /**
michael@0:  * Entity that delegates the process of content generation
michael@0:  * to a {@link ContentProducer}.
michael@0:  *
michael@0:  * @since 4.0
michael@0:  */
michael@0: public class EntityTemplate extends AbstractHttpEntity {
michael@0: 
michael@0:     private final ContentProducer contentproducer;
michael@0: 
michael@0:     public EntityTemplate(final ContentProducer contentproducer) {
michael@0:         super();
michael@0:         if (contentproducer == null) {
michael@0:             throw new IllegalArgumentException("Content producer may not be null");
michael@0:         }
michael@0:         this.contentproducer = contentproducer;
michael@0:     }
michael@0: 
michael@0:     public long getContentLength() {
michael@0:         return -1;
michael@0:     }
michael@0: 
michael@0:     public InputStream getContent() {
michael@0:         throw new UnsupportedOperationException("Entity template does not implement getContent()");
michael@0:     }
michael@0: 
michael@0:     public boolean isRepeatable() {
michael@0:         return true;
michael@0:     }
michael@0: 
michael@0:     public void writeTo(final OutputStream outstream) throws IOException {
michael@0:         if (outstream == null) {
michael@0:             throw new IllegalArgumentException("Output stream may not be null");
michael@0:         }
michael@0:         this.contentproducer.writeTo(outstream);
michael@0:     }
michael@0: 
michael@0:     public boolean isStreaming() {
michael@0:         return false;
michael@0:     }
michael@0: 
michael@0: }