/*
 * 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 org.apache.oodt.cas.workflow.cli.action;

import java.util.Iterator;

//OODT imports
import org.apache.oodt.cas.cli.exception.CmdLineActionException;
import org.apache.oodt.cas.workflow.structs.WorkflowTask;

/**
 * A {@link CmdLineAction} which retrieves WorkflowTask information for
 * WorkflowTask with given task ID.
 *
 * @author bfoster (Brian Foster)
 */
public class GetTaskByIdCliAction extends WorkflowCliAction {

   private String taskId;

   @Override
   public void execute(ActionMessagePrinter printer)
         throws CmdLineActionException {
      try {
         WorkflowTask task = getClient().getTaskById(taskId);
         
         String requiredMetFields = "";
         for (Iterator i = task.getRequiredMetFields().iterator(); i.hasNext();) {
        	 if (requiredMetFields.length()>0) requiredMetFields += ", ";
             requiredMetFields += (String) i.next();
         }
         
         printer.println("Task: [id=" + task.getTaskId() 
               + ", name=" + task.getTaskName() 
               + ", order=" + task.getOrder() 
               + ", class=" + task.getClass().getName() 
               + ", numConditions=" + task.getConditions().size() 
               + ", requiredMetadataFields=[" + requiredMetFields+"]"
               + ", configuration="+ task.getTaskConfig().getProperties() + "]");
         
      } catch (Exception e) {
         throw new CmdLineActionException(
               "Failed to get task by id for taskId '" + taskId + "' : "
                     + e.getMessage(), e);
      }
   }

   public void setTaskId(String taskId) {
      this.taskId = taskId;
   }
}