CustomHttpClient.java

/*
 * Copyright (C) 2011 twocity
 *
 * 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.twocity.asoiaf.utils;

// This file is CustomHttpClient.java
import org.apache.http.HttpVersion;
import org.apache.http.client.HttpClient;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.params.ConnManagerParams;
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import org.apache.http.protocol.HTTP;

public class CustomHttpClient {
	private static HttpClient customHttpClient;

	/** A private Constructor prevents any other class from instantiating. */
	private CustomHttpClient() {
	}

	public static synchronized HttpClient getHttpClient() {
		if (customHttpClient == null) {
	        HttpParams params = new BasicHttpParams();
	        HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
	        HttpProtocolParams.setContentCharset(params, HTTP.DEFAULT_CONTENT_CHARSET);
	        HttpProtocolParams.setUseExpectContinue(params, true);
	        
	        ConnManagerParams.setTimeout(params, 1000);

	        HttpConnectionParams.setConnectionTimeout(params, 5000);
	        HttpConnectionParams.setSoTimeout(params, 10000);
	        
	        SchemeRegistry schReg = new SchemeRegistry();
	        schReg.register(new Scheme("http", 
	                        PlainSocketFactory.getSocketFactory(), 80));
	        schReg.register(new Scheme("https", 
	                        SSLSocketFactory.getSocketFactory(), 443));
	        ClientConnectionManager conMgr = new 
	                        ThreadSafeClientConnManager(params,schReg);
	        
	        customHttpClient = new DefaultHttpClient(conMgr, params);
		}
		return customHttpClient;
	}
}