/*
 * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
 * (the "License"). You may not use this work except in compliance with the License, which is
 * available at www.apache.org/licenses/LICENSE-2.0
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied, as more fully set forth in the License.
 *
 * See the NOTICE file distributed with this work for information regarding copyright ownership.
 */

package alluxio.util.network;

import com.google.common.base.Preconditions;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.PostMethod;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

/**
 * Utility methods for working with http.
 */
public final class HttpUtils {
  private static final Logger LOG = LoggerFactory.getLogger(HttpUtils.class);

  private HttpUtils() {
  }

  /**
   * Uses the post method to send a url with arguments by http, this method can call RESTful Api.
   *
   * @param url the http url
   * @param timeout milliseconds to wait for the server to respond before giving up
   * @param processInputStream the response body stream processor
   */
  public static void post(String url, Integer timeout,
                          IProcessInputStream processInputStream)
      throws IOException {
    Preconditions.checkNotNull(timeout, "timeout");
    Preconditions.checkNotNull(processInputStream, "processInputStream");
    PostMethod postMethod = new PostMethod(url);
    try {
      HttpClient httpClient = new HttpClient();
      httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(timeout);
      httpClient.getHttpConnectionManager().getParams().setSoTimeout(timeout);
      int statusCode = httpClient.executeMethod(postMethod);
      if (statusCode == HttpStatus.SC_OK || statusCode == HttpStatus.SC_CREATED) {
        InputStream inputStream = postMethod.getResponseBodyAsStream();
        processInputStream.process(inputStream);
      } else {
        throw new IOException("Failed to perform POST request. Status code: " + statusCode);
      }
    } finally {
      postMethod.releaseConnection();
    }
  }

  /**
   * Uses the post method to send a url with arguments by http, this method can call RESTful Api.
   *
   * @param url the http url
   * @param timeout milliseconds to wait for the server to respond before giving up
   * @return the response body stream as UTF-8 string if response status is OK or CREATED
   */
  public static String post(String url, Integer timeout)
      throws IOException {
    final StringBuilder contentBuffer = new StringBuilder();
    post(url, timeout, new IProcessInputStream() {
      @Override
      public void process(InputStream inputStream) throws IOException {
        try (BufferedReader br = new BufferedReader(
            new InputStreamReader(inputStream, "UTF-8"))) {
          String line;
          while ((line = br.readLine()) != null) {
            contentBuffer.append(line);
          }
        }
      }
    });
    return contentBuffer.toString();
  }

  /**
   * This interface should be implemented by the http response body stream processor.
   */
  public interface IProcessInputStream {
    /**
     * @param inputStream the input stream to process
     */
    void process(InputStream inputStream) throws IOException;
  }
}

@@ -2884,126 +2884,25 @@
 ut, 
-new IProcessInputStream() %7B%0A      @Override%0A      public void process(InputStream inputStream) throws IOException
+inputStream -%3E
  %7B%0A
-  
     
@@ -2958,18 +2958,16 @@
         
- 
- 
 new Inpu
@@ -3014,18 +3014,16 @@
         
-  
 String l
@@ -3035,18 +3035,16 @@
         
- 
- 
 while ((
@@ -3086,18 +3086,16 @@
         
-  
 contentB
@@ -3118,20 +3118,8 @@
 e);%0A
-          %7D%0A
     

Replace anonymous type with lambda