68 lines
1.9 KiB
Java
68 lines
1.9 KiB
Java
/**
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*
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* Copyright 2013-2014 Florian Schmaus
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smack.compression.jzlib;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import org.jivesoftware.smack.SmackConfiguration;
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import org.jivesoftware.smack.compression.XMPPInputOutputStream;
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import com.jcraft.jzlib.DeflaterOutputStream;
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import com.jcraft.jzlib.InflaterInputStream;
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/**
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* This class provides XMPP "zlib" compression with the help of JZLib.
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*
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* @author Florian Schmaus
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* @see <a href="http://www.jcraft.com/jzlib/">JZLib</a>
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*
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*/
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public class JzlibInputOutputStream extends XMPPInputOutputStream {
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static {
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SmackConfiguration.addCompressionHandler(new JzlibInputOutputStream());
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}
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public JzlibInputOutputStream() {
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super("zlib");
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}
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@Override
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public boolean isSupported() {
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return true;
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}
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@Override
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public InputStream getInputStream(InputStream inputStream) throws IOException {
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final InflaterInputStream is = new InflaterInputStream(inputStream);
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return is;
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}
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@Override
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public OutputStream getOutputStream(OutputStream outputStream) throws IOException {
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final DeflaterOutputStream os = new DeflaterOutputStream(outputStream);
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if (flushMethod == FlushMethod.SYNC_FLUSH) {
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os.setSyncFlush(true);
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}
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return os;
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}
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}
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