| /* |
| * 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.service.engine; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Modifier; |
| 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.base.util.Debug; |
| import org.apache.ofbiz.base.util.UtilGenerics; |
| |
| /** |
| * Standard Java Static Method Service Engine |
| */ |
| public final class StandardJavaEngine extends GenericAsyncEngine { |
| |
| public static final String module = StandardJavaEngine.class.getName(); |
| |
| public StandardJavaEngine(ServiceDispatcher dispatcher) { |
| super(dispatcher); |
| } |
| |
| /** |
| * @see org.apache.ofbiz.service.engine.GenericEngine#runSyncIgnore(java.lang.String, org.apache.ofbiz.service.ModelService, java.util.Map) |
| */ |
| @Override |
| public void runSyncIgnore(String localName, ModelService modelService, Map<String, Object> context) throws GenericServiceException { |
| runSync(localName, modelService, context); |
| } |
| |
| /** |
| * @see org.apache.ofbiz.service.engine.GenericEngine#runSync(java.lang.String, org.apache.ofbiz.service.ModelService, java.util.Map) |
| */ |
| @Override |
| public Map<String, Object> runSync(String localName, ModelService modelService, Map<String, Object> context) throws GenericServiceException { |
| Object result = serviceInvoker(localName, modelService, context); |
| |
| if (result == null || !(result instanceof Map<?, ?>)) { |
| throw new GenericServiceException("Service [" + modelService.name + "] did not return a Map object"); |
| } |
| return UtilGenerics.checkMap(result); |
| } |
| |
| // Invoke the static java method service. |
| private Object serviceInvoker(String localName, ModelService modelService, Map<String, Object> context) throws GenericServiceException { |
| // static java service methods should be: public Map<String, Object> methodName(DispatchContext dctx, Map<String, Object> context) |
| DispatchContext dctx = dispatcher.getLocalContext(localName); |
| |
| if (modelService == null) { |
| Debug.logError("ERROR: Null Model Service.", module); |
| } |
| if (dctx == null) { |
| Debug.logError("ERROR: Null DispatchContext.", module); |
| } |
| if (context == null) { |
| Debug.logError("ERROR: Null Service Context.", module); |
| } |
| |
| Object result = null; |
| |
| // check the package and method names |
| if (modelService.location == null || modelService.invoke == null) { |
| throw new GenericServiceException("Service [" + modelService.name + "] is missing location and/or invoke values which are required for execution."); |
| } |
| |
| // get the classloader to use |
| ClassLoader cl = null; |
| |
| if (dctx == null) { |
| cl = this.getClass().getClassLoader(); |
| } else { |
| cl = dctx.getClassLoader(); |
| } |
| |
| try { |
| Class<?> c = cl.loadClass(this.getLocation(modelService)); |
| Method m = c.getMethod(modelService.invoke, DispatchContext.class, Map.class); |
| if (Modifier.isStatic(m.getModifiers())) { |
| result = m.invoke(null, dctx, context); |
| } else { |
| result = m.invoke(c.newInstance(), dctx, context); |
| } |
| } catch (ClassNotFoundException cnfe) { |
| throw new GenericServiceException("Cannot find service [" + modelService.name + "] location class", cnfe); |
| } catch (NoSuchMethodException nsme) { |
| throw new GenericServiceException("Service [" + modelService.name + "] specified Java method (invoke attribute) does not exist", nsme); |
| } catch (SecurityException se) { |
| throw new GenericServiceException("Service [" + modelService.name + "] Access denied", se); |
| } catch (IllegalAccessException iae) { |
| throw new GenericServiceException("Service [" + modelService.name + "] Method not accessible", iae); |
| } catch (IllegalArgumentException iarge) { |
| throw new GenericServiceException("Service [" + modelService.name + "] Invalid parameter match", iarge); |
| } catch (InvocationTargetException ite) { |
| throw new GenericServiceException("Service [" + modelService.name + "] target threw an unexpected exception", ite.getTargetException()); |
| } catch (NullPointerException npe) { |
| throw new GenericServiceException("Service [" + modelService.name + "] ran into an unexpected null object", npe); |
| } catch (ExceptionInInitializerError eie) { |
| throw new GenericServiceException("Service [" + modelService.name + "] Initialization failed", eie); |
| } catch (Throwable th) { |
| throw new GenericServiceException("Service [" + modelService.name + "] Error or unknown exception", th); |
| } |
| |
| return result; |
| } |
| } |
| |