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/*
 * 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 org.jboss.netty.channel;

import org.jboss.netty.buffer.ChannelBufferFactory;
import org.jboss.netty.buffer.HeapChannelBufferFactory;
import org.jboss.netty.channel.socket.SocketChannelConfig;
import org.jboss.netty.util.internal.ConversionUtil;

import java.util.Map;
import java.util.Map.Entry;

/**
 * The default {@link SocketChannelConfig} implementation.
 */
public class DefaultChannelConfig implements ChannelConfig {

    private volatile ChannelBufferFactory bufferFactory = HeapChannelBufferFactory.getInstance();
    private volatile int connectTimeoutMillis = 10000; // 10 seconds

    public void setOptions(Map options) {
        for (Entry e: options.entrySet()) {
            setOption(e.getKey(), e.getValue());
        }
    }

    public boolean setOption(String key, Object value) {
        if (key == null) {
            throw new NullPointerException("key");
        }

        if ("pipelineFactory".equals(key)) {
            setPipelineFactory((ChannelPipelineFactory) value);
        } else if ("connectTimeoutMillis".equals(key)) {
            setConnectTimeoutMillis(ConversionUtil.toInt(value));
        } else if ("bufferFactory".equals(key)) {
            setBufferFactory((ChannelBufferFactory) value);
        } else {
            return false;
        }
        return true;
    }

    public int getConnectTimeoutMillis() {
        return connectTimeoutMillis;
    }

    public ChannelBufferFactory getBufferFactory() {
        return bufferFactory;
    }

    public void setBufferFactory(ChannelBufferFactory bufferFactory) {
        if (bufferFactory == null) {
            throw new NullPointerException("bufferFactory");
        }
        this.bufferFactory = bufferFactory;
    }

    public ChannelPipelineFactory getPipelineFactory() {
        return null;
    }

    public void setConnectTimeoutMillis(int connectTimeoutMillis) {
        if (connectTimeoutMillis < 0) {
            throw new IllegalArgumentException("connectTimeoutMillis: " + connectTimeoutMillis);
        }
        this.connectTimeoutMillis = connectTimeoutMillis;
    }

    public void setPipelineFactory(ChannelPipelineFactory pipelineFactory) {
        // Unused
    }
}