| /* |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| package org.apache.hc.client5.http.entity; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.util.zip.GZIPOutputStream; |
| |
| import org.apache.hc.core5.http.HttpEntity; |
| import org.apache.hc.core5.http.io.entity.HttpEntityWrapper; |
| import org.apache.hc.core5.util.Args; |
| |
| /** |
| * Wrapping entity that compresses content when {@link #writeTo writing}. |
| * |
| * |
| * @since 4.0 |
| */ |
| public class GzipCompressingEntity extends HttpEntityWrapper { |
| |
| private static final String GZIP_CODEC = "gzip"; |
| |
| public GzipCompressingEntity(final HttpEntity entity) { |
| super(entity); |
| } |
| |
| @Override |
| public String getContentEncoding() { |
| return GZIP_CODEC; |
| } |
| |
| @Override |
| public long getContentLength() { |
| return -1; |
| } |
| |
| @Override |
| public boolean isChunked() { |
| // force content chunking |
| return true; |
| } |
| |
| @Override |
| public InputStream getContent() throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void writeTo(final OutputStream outStream) throws IOException { |
| Args.notNull(outStream, "Output stream"); |
| final GZIPOutputStream gzip = new GZIPOutputStream(outStream); |
| super.writeTo(gzip); |
| // Only close output stream if the wrapped entity has been |
| // successfully written out |
| gzip.close(); |
| } |
| |
| } |