| /* |
| * 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.unomi.groovy.actions; |
| |
| import groovy.lang.GroovyCodeSource; |
| import groovy.lang.GroovyShell; |
| import groovy.lang.Script; |
| import org.apache.unomi.api.Event; |
| import org.apache.unomi.api.actions.Action; |
| import org.apache.unomi.api.actions.ActionDispatcher; |
| import org.apache.unomi.groovy.actions.services.GroovyActionsService; |
| import org.apache.unomi.metrics.MetricAdapter; |
| import org.apache.unomi.metrics.MetricsService; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * An implementation of an ActionDispatcher for the Groovy language. This dispatcher will load the groovy action script matching to an |
| * actionName. If a script if found, it will be executed. |
| */ |
| public class GroovyActionDispatcher implements ActionDispatcher { |
| |
| private static final Logger logger = LoggerFactory.getLogger(GroovyActionDispatcher.class.getName()); |
| |
| private static final String GROOVY_PREFIX = "groovy"; |
| |
| private MetricsService metricsService; |
| |
| private GroovyActionsService groovyActionsService; |
| |
| public void setMetricsService(MetricsService metricsService) { |
| this.metricsService = metricsService; |
| } |
| |
| public void setGroovyActionsService(GroovyActionsService groovyActionsService) { |
| this.groovyActionsService = groovyActionsService; |
| } |
| |
| public String getPrefix() { |
| return GROOVY_PREFIX; |
| } |
| |
| public Integer execute(Action action, Event event, String actionName) { |
| GroovyCodeSource groovyCodeSource = groovyActionsService.getGroovyCodeSource(actionName); |
| if (groovyCodeSource == null) { |
| logger.warn("Couldn't find a Groovy action with name {}, action will not execute !", actionName); |
| } else { |
| GroovyShell groovyShell = groovyActionsService.getGroovyShell(); |
| groovyShell.setVariable("action", action); |
| groovyShell.setVariable("event", event); |
| Script script = groovyShell.parse(groovyCodeSource); |
| try { |
| return new MetricAdapter<Integer>(metricsService, this.getClass().getName() + ".action.groovy." + actionName) { |
| @Override |
| public Integer execute(Object... args) throws Exception { |
| return (Integer) script.invokeMethod("execute", null); |
| } |
| }.runWithTimer(); |
| } catch (Exception e) { |
| logger.error("Error executing Groovy action with key=" + actionName, e); |
| } |
| } |
| return 0; |
| } |
| } |