/*
    * Copyright 2011 Vincent Behar
    *
    * 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 org.rundeck.api.parser;
  
  import java.util.Collections;
  import java.util.Date;
  import java.util.HashSet;
  import java.util.List;
  
  import org.apache.commons.lang.StringUtils;
  import org.dom4j.Node;
  import org.rundeck.api.domain.RundeckExecution;
  import org.rundeck.api.domain.RundeckJob;
  import org.rundeck.api.domain.RundeckExecution.ExecutionStatus;
  import org.rundeck.api.domain.RundeckNode;
  import org.rundeck.api.domain.RundeckNodeIdentity;
  
  /**
   * Parser for a single {@link RundeckExecution}
   * 
   * @author Vincent Behar
   */
  public class ExecutionParser extends BaseXpathParser<RundeckExecution> {
  
  
      public ExecutionParser(final String xpath) {
          super(xpath);
      }
  
      public ExecutionParser() {
  
      }
  
      @Override
      public RundeckExecution parse(Node execNode) {
          RundeckExecution execution = new RundeckExecution();
  
          execution.setId(Long.valueOf(execNode.valueOf("@id")));
          execution.setUrl(StringUtils.trimToNull(execNode.valueOf("@href")));
          try {
              execution.setStatus(ExecutionStatus.valueOf(StringUtils.replace(StringUtils.upperCase(execNode.valueOf("@status")),"-","_")));
          } catch (IllegalArgumentException e) {
              execution.setStatus(null);
          }
          execution.setDescription(StringUtils.trimToNull(execNode.valueOf("description")));
          execution.setArgstring(StringUtils.trimToNull(execNode.valueOf("argstring")));
          execution.setStartedBy(StringUtils.trimToNull(execNode.valueOf("user")));
          execution.setAbortedBy(StringUtils.trimToNull(execNode.valueOf("abortedby")));
          execution.setProject(StringUtils.trimToNull(execNode.valueOf("@project")));
          String startedAt = StringUtils.trimToNull(execNode.valueOf("date-started/@unixtime"));
          if (startedAt != null) {
              execution.setStartedAt(new Date(Long.valueOf(startedAt)));
          }
          String endedAt = StringUtils.trimToNull(execNode.valueOf("date-ended/@unixtime"));
          if (endedAt != null) {
              execution.setEndedAt(new Date(Long.valueOf(endedAt)));
          }
  
          Node jobNode = execNode.selectSingleNode("job");
          if (jobNode != null) {
              RundeckJob job = new JobParser().parseXmlNode(jobNode);
              execution.setJob(job);
          }
  
          final Node successfulNodes = execNode.selectSingleNode("successfulNodes");
          if (successfulNodes != null) {
              final List<RundeckNode> rundeckNodes =
                      new ListParser<RundeckNode>(new NodeParser(), "successfulNodes/node")
                              .parseXmlNode(execNode);
              execution.setSuccessfulNodes(new HashSet<RundeckNodeIdentity>(rundeckNodes));
          }else{
              execution.setSuccessfulNodes(Collections.<RundeckNodeIdentity>emptySet());
          }
  
          final Node failedNodes = execNode.selectSingleNode("failedNodes");
          if (failedNodes != null) {
              final List<RundeckNode> rundeckNodes =
                      new ListParser<RundeckNode>(new NodeParser(), "failedNodes/node")
                              .parseXmlNode(execNode);
              execution.setFailedNodes(new HashSet<RundeckNodeIdentity>(rundeckNodes));
          } else {
              execution.setFailedNodes(Collections.<RundeckNodeIdentity>emptySet());
          }
  
          return execution;
      }
 
 }