| /* |
| * 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.crawl.action; |
| |
| //JDK imports |
| import java.io.File; |
| import java.util.List; |
| |
| //Apache imports |
| import org.apache.commons.lang.Validate; |
| |
| //OODT imports |
| import org.apache.oodt.cas.crawl.action.CrawlerAction; |
| import org.apache.oodt.cas.crawl.structs.exceptions.CrawlerActionException; |
| import org.apache.oodt.cas.metadata.Metadata; |
| |
| /** |
| * Support of a GroupAction could go a ways to simplify command line |
| * specification of actions to run. Instead of having to list actions to run one |
| * would simply end up referencing the group. In addition, this may end up |
| * opening up the possibility to customize the behavior of GroupActions such as |
| * not continuing to run actions if one failed. Currently, the crawler continues |
| * executing actions even if an action fails this could be a way to tailor that |
| * behavior. |
| * |
| * @author pramirez (Paul Ramirez) |
| */ |
| public class GroupAction extends CrawlerAction { |
| private List<CrawlerAction> actionsToCall; |
| |
| @Override |
| public boolean performAction(File product, Metadata metadata) |
| throws CrawlerActionException { |
| boolean allSucceeded = true; |
| for (CrawlerAction action : actionsToCall) { |
| try { |
| LOG.info("Performing action (id = " + action.getId() |
| + " : description = " + action.getDescription() + ")"); |
| if (!action.performAction(product, metadata)) |
| throw new Exception("Action (id = " + action.getId() |
| + " : description = " + action.getDescription() |
| + ") returned false"); |
| } catch (Exception e) { |
| allSucceeded = false; |
| LOG.warning("Failed to perform crawler action : " + e.getMessage()); |
| } |
| |
| } |
| return allSucceeded; |
| } |
| |
| @Override |
| public void validate() throws CrawlerActionException { |
| super.validate(); |
| try { |
| Validate.notNull(actionsToCall, "Must specify actionsToCall"); |
| } catch (Exception e) { |
| throw new CrawlerActionException(e); |
| } |
| } |
| |
| public void setActionsToCall(List<CrawlerAction> actionsToCall) { |
| this.actionsToCall = actionsToCall; |
| } |
| } |