/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project 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.
 */
package io.netty.handler.codec.compression;

import io.netty.util.internal.PlatformDependent;

/**
 * Creates a new {@link ZlibEncoder} and a new {@link ZlibDecoder}.
 */
public final class ZlibCodecFactory {

    public static ZlibEncoder newZlibEncoder(int compressionLevel) {
        if (PlatformDependent.javaVersion() < 7) {
            return new JZlibEncoder(compressionLevel);
        } else {
            return new JdkZlibEncoder(compressionLevel);
        }
    }

    public static ZlibEncoder newZlibEncoder(ZlibWrapper wrapper) {
        if (PlatformDependent.javaVersion() < 7) {
            return new JZlibEncoder(wrapper);
        } else {
            return new JdkZlibEncoder(wrapper);
        }
    }

    public static ZlibEncoder newZlibEncoder(ZlibWrapper wrapper, int compressionLevel) {
        if (PlatformDependent.javaVersion() < 7) {
            return new JZlibEncoder(wrapper, compressionLevel);
        } else {
            return new JdkZlibEncoder(wrapper, compressionLevel);
        }
    }

    public static ZlibEncoder newZlibEncoder(ZlibWrapper wrapper, int compressionLevel, int windowBits, int memLevel) {
        if (PlatformDependent.javaVersion() < 7) {
            return new JZlibEncoder(wrapper, compressionLevel, windowBits, memLevel);
        } else {
            return new JdkZlibEncoder(wrapper, compressionLevel);
        }
    }

    public static ZlibEncoder newZlibEncoder(byte[] dictionary) {
        if (PlatformDependent.javaVersion() < 7) {
            return new JZlibEncoder(dictionary);
        } else {
            return new JdkZlibEncoder(dictionary);
        }
    }

    public static ZlibEncoder newZlibEncoder(int compressionLevel, byte[] dictionary) {
        if (PlatformDependent.javaVersion() < 7) {
            return new JZlibEncoder(compressionLevel, dictionary);
        } else {
            return new JdkZlibEncoder(compressionLevel, dictionary);
        }
    }

    public static ZlibEncoder newZlibEncoder(int compressionLevel, int windowBits, int memLevel, byte[] dictionary) {
        if (PlatformDependent.javaVersion() < 7) {
            return new JZlibEncoder(compressionLevel, windowBits, memLevel, dictionary);
        } else {
            return new JdkZlibEncoder(compressionLevel, dictionary);
        }
    }

    public static ZlibDecoder newZlibDecoder() {
        if (PlatformDependent.javaVersion() < 7) {
            return new JZlibDecoder();
        } else {
            return new JdkZlibDecoder();
        }
    }

    public static ZlibDecoder newZlibDecoder(ZlibWrapper wrapper) {
        switch (wrapper) {
            case ZLIB_OR_NONE:
                return new JZlibDecoder(wrapper);
            default:
                if (PlatformDependent.javaVersion() < 7) {
                    return new JZlibDecoder(wrapper);
                } else {
                    return new JdkZlibDecoder(wrapper);
                }
        }
    }

    public static ZlibDecoder newZlibDecoder(byte[] dictionary) {
        if (PlatformDependent.javaVersion() < 7) {
            return new JZlibDecoder(dictionary);
        } else {
            return new JdkZlibDecoder(dictionary);
        }
    }

    private ZlibCodecFactory() {
        // Unused
    }
}

@@ -726,122 +726,636 @@
 nt;%0A
-%0A/**%0A * Creates a new %7B@link ZlibEncoder%7D and a new %7B@link ZlibDecoder%7D.%0A */%0Apublic final class ZlibCodecFactory %7B
+import io.netty.util.internal.SystemPropertyUtil;%0Aimport io.netty.util.internal.logging.InternalLogger;%0Aimport io.netty.util.internal.logging.InternalLoggerFactory;%0A%0A/**%0A * Creates a new %7B@link ZlibEncoder%7D and a new %7B@link ZlibDecoder%7D.%0A */%0Apublic final class ZlibCodecFactory %7B%0A    private static final InternalLogger logger = InternalLoggerFactory.getInstance(ZlibCodecFactory.class);%0A%0A    private static final boolean noJdkZlibDecoder;%0A%0A    static %7B%0A        noJdkZlibDecoder = !SystemPropertyUtil.getBoolean(%22io.netty.noJdkZlibDecoder%22, true);%0A        logger.debug(%22-Dio.netty.noJdkZlibDecoder: %7B%7D%22, noJdkZlibDecoder);%0A    %7D
 %0A%0A  
@@ -3536,32 +3536,52 @@
 avaVersion() %3C 7
+ %7C%7C noJdkZlibDecoder
 ) %7B%0A            
@@ -3926,32 +3926,52 @@
 avaVersion() %3C 7
+ %7C%7C noJdkZlibDecoder
 ) %7B%0A            
@@ -4233,32 +4233,52 @@
 avaVersion() %3C 7
+ %7C%7C noJdkZlibDecoder
 ) %7B%0A            

Disable usage of JdkZlibDecoder by default, will be enabled in 4.1.0.Final