| /******************************************************************************* |
| * 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.ofbiz.minilang; |
| |
| import java.util.Map; |
| |
| import org.apache.ofbiz.service.DispatchContext; |
| import org.apache.ofbiz.service.GenericServiceException; |
| import org.apache.ofbiz.service.ModelService; |
| import org.apache.ofbiz.service.ServiceDispatcher; |
| import org.apache.ofbiz.service.engine.GenericAsyncEngine; |
| |
| /** |
| * Mini-language Service Engine. |
| */ |
| public final class SimpleServiceEngine extends GenericAsyncEngine { |
| |
| /** Creates new Engine */ |
| public SimpleServiceEngine(ServiceDispatcher dispatcher) { |
| super(dispatcher); |
| } |
| |
| /** |
| * Run the service synchronously and return the result |
| * |
| * @param context |
| * Map of name, value pairs composing the context |
| * @return Map of name, value pairs composing the result |
| */ |
| @Override |
| public Map<String, Object> runSync(String localName, ModelService modelService, Map<String, Object> context) throws GenericServiceException { |
| Map<String, Object> result = serviceInvoker(localName, modelService, context); |
| if (result == null) |
| throw new GenericServiceException("Service did not return expected result"); |
| return result; |
| } |
| |
| /** |
| * Run the service synchronously and IGNORE the result |
| * |
| * @param context |
| * Map of name, value pairs composing the context |
| */ |
| @Override |
| public void runSyncIgnore(String localName, ModelService modelService, Map<String, Object> context) throws GenericServiceException { |
| runSync(localName, modelService, context); |
| } |
| |
| // Invoke the simple method from a service context |
| private Map<String, Object> serviceInvoker(String localName, ModelService modelService, Map<String, ? extends Object> context) throws GenericServiceException { |
| // static java service methods should be: public Map methodName(DispatchContext dctx, Map context) |
| DispatchContext dctx = dispatcher.getLocalContext(localName); |
| // check the package and method names |
| if (modelService.location == null || modelService.invoke == null) |
| throw new GenericServiceException("Cannot locate service to invoke (location or invoke name missing)"); |
| // get the classloader to use |
| ClassLoader classLoader = null; |
| if (dctx != null) |
| classLoader = dctx.getClassLoader(); |
| // if the classLoader is null, no big deal, SimpleMethod will use the |
| // current thread's ClassLoader by default if null passed in |
| try { |
| return SimpleMethod.runSimpleService(this.getLocation(modelService), modelService.invoke, dctx, context, classLoader); |
| } catch (MiniLangException e) { |
| throw new GenericServiceException("Error running simple method [" + modelService.invoke + "] in XML file [" + modelService.location + "]: ", e); |
| } |
| } |
| } |