/*
    * Copyright 2012 smartics, Kronseder & Reiner GmbH
    *
    * 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 de.smartics.ci.comm.hudson.command;
  
  import java.io.IOException;
  import java.io.UnsupportedEncodingException;
  import java.util.HashMap;
  import java.util.Map;
  
  import org.apache.commons.httpclient.HttpException;
  import org.apache.commons.httpclient.methods.PostMethod;
  import org.apache.commons.httpclient.methods.StringRequestEntity;
  
  import de.smartics.ci.comm.CiSystem;
  import de.smartics.ci.comm.command.AbstractCreateJobCommand;
  import de.smartics.ci.comm.command.CommandException;
  
  /**
   * Create job command.
   */
  public final class HudsonCreateJobCommand extends
      AbstractCreateJobCommand<HudsonCreateJobCommand>
  {
    // ********************************* Fields *********************************
  
    // --- constants ------------------------------------------------------------
  
    // --- members --------------------------------------------------------------
  
    /**
     * The configuration for the job / the config_xml as String.
     */
    private String configString;
  
    // ****************************** Initializer *******************************
  
    // ****************************** Constructors ******************************
  
    /**
     * Default constructor.
     *
     * @param jobName the name of the job that shall be created.
     * @param configString the configuration for the job / the config_xml as
     *          String.
     */
    public HudsonCreateJobCommand(final String jobName, final String configString)
    {
      super(jobName);
      this.configString = configString;
    }
  
    /**
     * Default constructor. jobName and configString are set to null and must be
     * set later before command will be executed.
     */
    public HudsonCreateJobCommand()
    {
      this(null, null);
    }
  
    // ****************************** Inner Classes *****************************
  
    // ********************************* Methods ********************************
  
    // --- init -----------------------------------------------------------------
  
    // --- get&set --------------------------------------------------------------
  
    /**
     * Sets the configuration for the job / the config_xml as String.
     *
     * @param configString the configuration for the job / the config_xml as
     *          String.
     */
    public void setConfigString(final String configString)
    {
      this.configString = configString;
    }
  
    // --- business -------------------------------------------------------------
  
    @Override
    public void execute(final CiSystem target) throws CommandException
    {
      try
      {
       checkParameterNotBlank(jobName, configString);
       createTheJob(target, jobName, configString);
     }
     catch (final Exception e)
     {
       throw new CommandException("Creating of new job " + jobName
                                  + " failed with config: \n\r" + configString,
           e);
     }
   }
 
   private void createTheJob(final CiSystem target, final String jobName,
       final String configString) throws UnsupportedEncodingException,
     IOException, HttpException, CommandException
   {
     String apiUrl = buildCiCreateJobApiUrl(target.getUrl(), "createItem");
 
     final Map<String, String> parameter = new HashMap<String, String>();
     parameter.put("name", jobName);
     apiUrl = apiUrl + "?" + buildQueryString(parameter); // NOPMD
 
     final PostMethod method = new PostMethod(apiUrl);
     method.addParameter("name", jobName);
     addRequestHeaders(method);
 
     final StringRequestEntity req =
         new StringRequestEntity(configString, "text/plain", "UTF-8");
     method.setRequestEntity(req);
     final int statusCode = target.execute(method);
     checkResult(statusCode);
   }
 
   private String buildCiCreateJobApiUrl(final String url, final String apiCall)
   {
     return url + "/" + apiCall;
   }
 
   // --- object basics --------------------------------------------------------
 
 }