content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF 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 com.alibaba.metrics.performance;
  
  import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.net.HttpURLConnection;
  import java.net.URL;
  import java.nio.charset.Charset;
  import java.util.Map;
  import java.util.Vector;
  
  /**
   * HTTP请求对象
   *
   */
  public class HttpRequester {
      private String defaultContentEncoding;
  
      public HttpRequester() {
          this.defaultContentEncoding = Charset.defaultCharset().name();
      }
  
      /**
       * 发送GET请求
       *
       * @param urlString
       *            URL地址
       * @return 响应对象
       * @throws IOException
       */
      public HttpRespons sendGet(String urlString) throws IOException {
          return this.send(urlString, "GET", null, null);
      }
  
      /**
       * 发送GET请求
       *
       * @param urlString
       *            URL地址
       * @param params
       *            参数集合
       * @return 响应对象
       * @throws IOException
       */
      public HttpRespons sendGet(String urlString, Map<String, String> params)
              throws IOException {
          return this.send(urlString, "GET", params, null);
      }
  
      /**
       * 发送GET请求
       *
       * @param urlString
       *            URL地址
       * @param params
       *            参数集合
       * @param propertys
       *            请求属性
       * @return 响应对象
       * @throws IOException
       */
      public HttpRespons sendGet(String urlString, Map<String, String> params,
              Map<String, String> propertys) throws IOException {
          return this.send(urlString, "GET", params, propertys);
      }
  
      /**
       * 发送POST请求
       *
       * @param urlString
       *            URL地址
       * @return 响应对象
       * @throws IOException
       */
      public HttpRespons sendPost(String urlString) throws IOException {
          return this.send(urlString, "POST", null, null);
      }
  
      /**
       * 发送POST请求
       *
       * @param urlString
       *            URL地址
       * @param params
       *            参数集合
       * @return 响应对象
       * @throws IOException
       */
      public HttpRespons sendPost(String urlString, Map<String, String> params)
              throws IOException {
          return this.send(urlString, "POST", params, null);
      }
  
      /**
       * 发送POST请求
       *
       * @param urlString
       *            URL地址
       * @param params
       *            参数集合
       * @param propertys
       *            请求属性
       * @return 响应对象
       * @throws IOException
       */
      public HttpRespons sendPost(String urlString, Map<String, String> params,
              Map<String, String> propertys) throws IOException {
          return this.send(urlString, "POST", params, propertys);
      }
  
      /**
       * 发送HTTP请求
       *
       * @param urlString
       * @return 响映对象
       * @throws IOException
       */
      private HttpRespons send(String urlString, String method,
              Map<String, String> parameters, Map<String, String> propertys)
              throws IOException {
          HttpURLConnection urlConnection = null;
  
          if (method.equalsIgnoreCase("GET") && parameters != null) {
              StringBuffer param = new StringBuffer();
              int i = 0;
              for (String key : parameters.keySet()) {
                  if (i == 0)
                      param.append("?");
                  else
                      param.append("&");
                  param.append(key).append("=").append(parameters.get(key));
                  i++;
              }
              urlString += param;
          }
          URL url = new URL(urlString);
          urlConnection = (HttpURLConnection) url.openConnection();
  
          urlConnection.setRequestMethod(method);
          urlConnection.setDoOutput(true);
          urlConnection.setDoInput(true);
          urlConnection.setUseCaches(false);
  
          if (propertys != null)
              for (String key : propertys.keySet()) {
                  urlConnection.addRequestProperty(key, propertys.get(key));
              }
  
          if (method.equalsIgnoreCase("POST") && parameters != null) {
              StringBuffer param = new StringBuffer();
              for (String key : parameters.keySet()) {
                  param.append("&");
                  param.append(key).append("=").append(parameters.get(key));
              }
              urlConnection.getOutputStream().write(param.toString().getBytes());
              urlConnection.getOutputStream().flush();
              urlConnection.getOutputStream().close();
          }
  
          return this.makeContent(urlString, urlConnection);
      }
  
      public HttpRespons sendPost(String urlString, String body) throws IOException{
  
          HttpURLConnection urlConnection = null;
          URL url = new URL(urlString);
          urlConnection = (HttpURLConnection) url.openConnection();
  
          urlConnection.setRequestMethod("POST");
          urlConnection.setDoOutput(true);
          urlConnection.setDoInput(true);
          urlConnection.setUseCaches(false);
          urlConnection.setRequestProperty("content-type", "application/json");
  
          urlConnection.getOutputStream().write(body.getBytes());
          urlConnection.getOutputStream().flush();
          urlConnection.getOutputStream().close();
  
          return this.makeContent(urlString, urlConnection);
      }
  
      /**
       * 得到响应对象
       *
       * @param urlConnection
       * @return 响应对象
       * @throws IOException
       */
      private HttpRespons makeContent(String urlString,
              HttpURLConnection urlConnection) throws IOException {
          HttpRespons httpResponser = new HttpRespons();
          try {
              InputStream in = urlConnection.getInputStream();
              BufferedReader bufferedReader = new BufferedReader(
                      new InputStreamReader(in));
              httpResponser.contentCollection = new Vector<String>();
              StringBuffer temp = new StringBuffer();
              String line = bufferedReader.readLine();
              while (line != null) {
                  httpResponser.contentCollection.add(line);
                  temp.append(line).append("\r\n");
                  line = bufferedReader.readLine();
              }
              bufferedReader.close();
  
              String ecod = urlConnection.getContentEncoding();
              if (ecod == null)
                  ecod = this.defaultContentEncoding;
  
              httpResponser.urlString = urlString;
  
              httpResponser.defaultPort = urlConnection.getURL().getDefaultPort();
              httpResponser.file = urlConnection.getURL().getFile();
              httpResponser.host = urlConnection.getURL().getHost();
              httpResponser.path = urlConnection.getURL().getPath();
              httpResponser.port = urlConnection.getURL().getPort();
              httpResponser.protocol = urlConnection.getURL().getProtocol();
              httpResponser.query = urlConnection.getURL().getQuery();
              httpResponser.ref = urlConnection.getURL().getRef();
              httpResponser.userInfo = urlConnection.getURL().getUserInfo();
  
              httpResponser.content = new String(temp.toString().getBytes(), ecod);
              httpResponser.contentEncoding = ecod;
              httpResponser.code = urlConnection.getResponseCode();
              httpResponser.message = urlConnection.getResponseMessage();
              httpResponser.contentType = urlConnection.getContentType();
              httpResponser.method = urlConnection.getRequestMethod();
              httpResponser.connectTimeout = urlConnection.getConnectTimeout();
              httpResponser.readTimeout = urlConnection.getReadTimeout();
  
              return httpResponser;
          } catch (IOException e) {
              throw e;
          } finally {
              if (urlConnection != null)
                  urlConnection.disconnect();
          }
      }
  
      /**
       * 默认的响应字符集
       */
      public String getDefaultContentEncoding() {
          return this.defaultContentEncoding;
      }
  
      /**
       * 设置默认的响应字符集
       */
      public void setDefaultContentEncoding(String defaultContentEncoding) {
          this.defaultContentEncoding = defaultContentEncoding;
      }
  }
  