/*
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */
package org.mule.functional.util;

import org.mule.runtime.core.util.IOUtils;
import org.mule.runtime.core.util.StringUtils;
import org.mule.tck.junit4.AbstractMuleContextTestCase;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class WebServiceOnlineCheck {

  public static final String TEST_URL = "http://www.webservicex.net/stockquote.asmx/GetQuote?symbol=CSCO";
  private static final Logger logger = LoggerFactory.getLogger(WebServiceOnlineCheck.class);

  public static boolean isWebServiceOnline() {
    logger.debug("Verifying that the web service is on-line...");

    BufferedReader input = null;
    try {
      URLConnection conn = new URL(TEST_URL).openConnection();
      // setting these timeouts ensures the client does not deadlock indefinitely
      // when the server has problems.
      conn.setConnectTimeout(AbstractMuleContextTestCase.RECEIVE_TIMEOUT);
      conn.setReadTimeout(AbstractMuleContextTestCase.RECEIVE_TIMEOUT);
      InputStream in = conn.getInputStream();

      input = new BufferedReader(new InputStreamReader(in));

      String response = "";
      String line;
      while ((line = input.readLine()) != null) {
        response += line;
      }

      if (StringUtils.containsIgnoreCase(response, "Cisco")) {
        return true;
      } else {
        logger.warn("Unexpected response, web service does not seem to be on-line: \n" + response);
        return false;
      }
    } catch (Exception e) {
      logger.warn("Exception occurred, web service does not seem to be on-line: " + e);
      return false;
    } finally {
      IOUtils.closeQuietly(input);
    }
  }
}