content: /*
   * 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 com.aliyun.openservices.odps.console.xflow;
  
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  
  import com.aliyun.odps.Odps;
  import com.aliyun.odps.OdpsException;
  import com.aliyun.odps.XFlows;
  import com.aliyun.openservices.odps.console.ExecutionContext;
  import com.aliyun.openservices.odps.console.ODPSConsoleException;
  import com.aliyun.openservices.odps.console.commands.AbstractCommand;
  import com.aliyun.openservices.odps.console.utils.OdpsConnectionFactory;
  
  /**
   * Created by nizheming on 15/4/14.
   */
  public class WaitXFlowCommand extends AbstractCommand {
  
    private static final Pattern PATTERN = Pattern.compile("\\s*WAIT\\s+(.*)",
                                                           Pattern.CASE_INSENSITIVE | Pattern.DOTALL);
    private final String id;
  
    private WaitXFlowCommand(String id, String cmd, ExecutionContext ctx) {
      super(cmd, ctx);
      this.id = id;
    }
  
    public static WaitXFlowCommand parse(String cmd, ExecutionContext ctx) throws ODPSConsoleException {
      Matcher m = PATTERN.matcher(cmd);
      if (m.matches()) {
        String id = m.group(1);
        Odps odps = OdpsConnectionFactory.createOdps(ctx);
        XFlows xFlows = odps.xFlows();
        boolean isXFlowInstance = xFlows.isXFlowInstance(odps.instances().get(id));
        if (isXFlowInstance) {
          return new WaitXFlowCommand(id, cmd, ctx);
        } else {
          return null;
        }
      }
      return null;
    }
  
    @Override
    public void run() throws OdpsException, ODPSConsoleException {
      PAICommand.waitForCompletion(getCurrentOdps().instances().get(id), getCurrentOdps(), getContext(), null);
    }
  
  }
  