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Reworked compression-jzlib and compressionHandlers

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- There is now no longer the need to use reflection for
compression-jzlib.
- compressionHandlers are a global configuration property and therefore
belong in SmackConfiguration.
This commit is contained in:
Florian Schmaus 2014-03-10 10:20:52 +01:00
parent 489816c61f
commit a3ab886896
5 changed files with 50 additions and 55 deletions
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49
compression-jzlib/src/main/java/org/jivesoftware/smack/compression/JzlibInputOutputStream.java
View file

@ -1,6 +1,6 @@
/**
*
* Copyright 2013 Florian Schmaus
* Copyright 2013-2014 Florian Schmaus
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -16,31 +16,28 @@
*/
package org.jivesoftware.smack.compression;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.jivesoftware.smack.SmackConfiguration;
import com.jcraft.jzlib.JZlib;
import com.jcraft.jzlib.ZInputStream;
import com.jcraft.jzlib.ZOutputStream;
/**
* This class provides XMPP "zlib" compression with the help of JZLib. Note that jzlib-1.0.7 must be used (i.e. in the
* classpath), newer versions won't work!
* This class provides XMPP "zlib" compression with the help of JZLib.
*
* @author Florian Schmaus
* @see <a href="http://www.jcraft.com/jzlib/">JZLib</a>
*
*/
@SuppressWarnings("deprecation")
public class JzlibInputOutputStream extends XMPPInputOutputStream {
private static Class<?> zoClass = null;
private static Class<?> ziClass = null;
static {
try {
zoClass = Class.forName("com.jcraft.jzlib.ZOutputStream");
ziClass = Class.forName("com.jcraft.jzlib.ZInputStream");
} catch (ClassNotFoundException e) {
}
SmackConfiguration.addCompressionHandler(new JzlibInputOutputStream());
}
public JzlibInputOutputStream() {
@ -49,28 +46,22 @@ public class JzlibInputOutputStream extends XMPPInputOutputStream {
@Override
public boolean isSupported() {
return (zoClass != null && ziClass != null);
return true;
}
@Override
public InputStream getInputStream(InputStream inputStream) throws SecurityException, NoSuchMethodException,
IllegalArgumentException, IllegalAccessException, InvocationTargetException, InstantiationException {
Constructor<?> constructor = ziClass.getConstructor(InputStream.class);
Object in = constructor.newInstance(inputStream);
public InputStream getInputStream(InputStream inputStream) throws IOException {
ZInputStream is = new ZInputStream(inputStream);
is.setFlushMode(JZlib.Z_SYNC_FLUSH);
Method method = ziClass.getMethod("setFlushMode", Integer.TYPE);
method.invoke(in, 2);
return (InputStream) in;
return is;
}
@Override
public OutputStream getOutputStream(OutputStream outputStream) throws SecurityException, NoSuchMethodException,
IllegalArgumentException, InstantiationException, IllegalAccessException, InvocationTargetException {
Constructor<?> constructor = zoClass.getConstructor(OutputStream.class, Integer.TYPE);
Object out = constructor.newInstance(outputStream, 9);
public OutputStream getOutputStream(OutputStream outputStream) throws IOException {
ZOutputStream os = new ZOutputStream(outputStream);
os.setFlushMode(JZlib.Z_SYNC_FLUSH);
Method method = zoClass.getMethod("setFlushMode", Integer.TYPE);
method.invoke(out, 2);
return (OutputStream) out;
return os;
}
}