001 /** 002 * Copyright (c) 2010 Yahoo! Inc. All rights reserved. 003 * Licensed under the Apache License, Version 2.0 (the "License"); 004 * you may not use this file except in compliance with the License. 005 * You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software 010 * distributed under the License is distributed on an "AS IS" BASIS, 011 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012 * See the License for the specific language governing permissions and 013 * limitations under the License. See accompanying LICENSE file. 014 */ 015 package org.apache.oozie.command.wf; 016 017 import org.apache.oozie.store.StoreException; 018 import org.apache.oozie.store.WorkflowStore; 019 import org.apache.oozie.store.Store; 020 import org.apache.oozie.util.ParamChecker; 021 import org.apache.oozie.util.XLog; 022 import org.apache.oozie.command.Command; 023 import org.apache.oozie.command.CommandException; 024 025 public class ExternalIdCommand extends WorkflowCommand<String> { 026 private String id; 027 028 public ExternalIdCommand(String id) { 029 super("externalId", "externalId", 1, XLog.STD); 030 this.id = ParamChecker.notEmpty(id, "id"); 031 } 032 033 @Override 034 protected String call(WorkflowStore store) throws StoreException, CommandException { 035 return store.getWorkflowIdForExternalId(id); 036 } 037 038 }