com.ibm.xsp.xflow.activiti.util.HttpClientUtil.java Source code

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Here is the source code for com.ibm.xsp.xflow.activiti.util.HttpClientUtil.java

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/*
 *  Copyright IBM Corp. 2013
 * 
 * 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.ibm.xsp.xflow.activiti.util;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.servlet.http.Cookie;

import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.BasicCookieStore;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.cookie.BasicClientCookie;

public class HttpClientUtil {
    private static Logger logger = Logger.getLogger(HttpClientUtil.class.getName());

    public static String post(String url, Cookie[] cookies, String content) {
        String body = null;
        try {
            StringBuffer buffer = new StringBuffer();
            DefaultHttpClient httpClient = new DefaultHttpClient();
            HttpPost postRequest = new HttpPost(url);

            StringEntity input = new StringEntity(content);
            input.setContentType("application/json");
            postRequest.setEntity(input);

            httpClient.setCookieStore(new BasicCookieStore());
            String hostName = new URL(url).getHost();
            String domain = hostName.substring(hostName.indexOf("."));
            for (int i = 0; i < cookies.length; i++) {
                if (logger.isLoggable(Level.FINEST)) {
                    logger.finest("Cookie:" + cookies[i].getName() + ":" + cookies[i].getValue() + ":"
                            + cookies[i].getDomain() + ":" + cookies[i].getPath());
                }
                BasicClientCookie cookie = new BasicClientCookie(cookies[i].getName(), cookies[i].getValue());
                cookie.setVersion(0);
                cookie.setDomain(domain);
                cookie.setPath("/");

                httpClient.getCookieStore().addCookie(cookie);
            }
            HttpResponse response = httpClient.execute(postRequest);
            BufferedReader br = new BufferedReader(new InputStreamReader((response.getEntity().getContent())));

            String output;
            if (logger.isLoggable(Level.FINEST)) {
                logger.finest("Output from Server .... \n");
            }
            while ((output = br.readLine()) != null) {
                if (logger.isLoggable(Level.FINEST)) {
                    logger.finest(output);
                }
                buffer.append(output);
            }

            httpClient.getConnectionManager().shutdown();

            body = buffer.toString();

        } catch (Exception e) {
            e.printStackTrace();
        }

        return body;
    }

    public static String get(String url, Cookie[] cookies) {
        String body = null;
        try {
            StringBuffer buffer = new StringBuffer();
            DefaultHttpClient httpClient = new DefaultHttpClient();
            HttpGet getRequest = new HttpGet(url);

            httpClient.setCookieStore(new BasicCookieStore());
            for (int i = 0; i < cookies.length; i++) {
                logger.finest("Cookie:" + cookies[i].getName() + ":" + cookies[i].getValue() + ":"
                        + cookies[i].getDomain() + ":" + cookies[i].getPath());
                BasicClientCookie cookie = new BasicClientCookie(cookies[i].getName(), cookies[i].getValue());
                cookie.setVersion(0);
                URL urlParse = new URL(url);
                String host = urlParse.getHost();
                String domain = null;
                if (host != null && host.indexOf('.') > 0) {
                    domain = host.substring(host.indexOf('.') + 1);
                }
                logger.finest("Domain:" + domain);
                cookie.setDomain(domain);
                cookie.setPath("/");

                httpClient.getCookieStore().addCookie(cookie);
            }
            HttpResponse response = httpClient.execute(getRequest);
            BufferedReader br = new BufferedReader(new InputStreamReader((response.getEntity().getContent())));

            String output;
            logger.finest("Output from Server .... \n");
            while ((output = br.readLine()) != null) {
                logger.finest(output);
                buffer.append(output);
            }

            httpClient.getConnectionManager().shutdown();

            body = buffer.toString();

        } catch (Exception e) {
            e.printStackTrace();
        }

        return body;
    }

}