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GZipEncoding.java
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GZipEncoding.java
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/*
* Copyright (c) 2012 Google Inc.
*
* 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 com.google.api.client.http;
import com.google.api.client.util.StreamingContent;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.zip.GZIPOutputStream;
/**
* GZip HTTP content encoding.
*
* @since 1.14
* @author Yaniv Inbar
*/
public class GZipEncoding implements HttpEncoding {
@Override
public String getName() {
return "gzip";
}
@Override
public void encode(StreamingContent content, OutputStream out) throws IOException {
// must not close the underlying output stream
OutputStream out2 =
new BufferedOutputStream(out) {
@Override
public void close() throws IOException {
// copy implementation of super.close(), except do not close the underlying output
// stream
try {
flush();
} catch (IOException ignored) {
}
}
};
GZIPOutputStream zipper = new GZIPOutputStream(out2);
content.writeTo(zipper);
// cannot call just zipper.finish() because that would cause a severe memory leak
zipper.close();
}
}