| /* |
| * 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.uima.adapter.soap; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.ObjectInputStream; |
| import java.net.MalformedURLException; |
| |
| import javax.activation.DataHandler; |
| import javax.xml.namespace.QName; |
| import javax.xml.rpc.ServiceException; |
| |
| import org.apache.axis.attachments.AttachmentPart; |
| import org.apache.axis.attachments.AttachmentUtils; |
| import org.apache.axis.client.Call; |
| import org.apache.axis.client.Service; |
| import org.apache.uima.analysis_engine.AnalysisEngineServiceStub; |
| import org.apache.uima.analysis_engine.ResultSpecification; |
| import org.apache.uima.analysis_engine.metadata.AnalysisEngineMetaData; |
| import org.apache.uima.analysis_engine.service.impl.ServiceDataCargo; |
| import org.apache.uima.cas.CAS; |
| import org.apache.uima.cas.CASException; |
| import org.apache.uima.resource.ResourceServiceException; |
| import org.apache.uima.resource.metadata.ResourceMetaData; |
| |
| /** |
| * Proxy to an {@link AnalysisEngineService} that makes use of Axis SOAP to communicate with the |
| * service. |
| * |
| * |
| */ |
| public class AxisAnalysisEngineServiceStub extends AxisResourceServiceStub implements |
| AnalysisEngineServiceStub { |
| |
| /** |
| * Whether attachments should be used to send binary-serialized data |
| */ |
| private boolean mUseAttachments; |
| |
| /** |
| * Sets the endpoint of the service with which this proxy communicates. |
| * |
| * @param aEndpoint |
| * the service endpoint URI |
| * @param aTimeout |
| * the timeout period in millseconds, or null to use Axis's default value |
| * |
| * @throws MalformedURLException |
| * if <code>aEndpoint</code> is not a valid URL |
| */ |
| public AxisAnalysisEngineServiceStub(String aEndpoint, Integer aTimeout) |
| throws MalformedURLException { |
| this(aEndpoint, aTimeout, false); |
| } |
| |
| /** |
| * Sets the endpoint of the service with which this proxy communicates. |
| * |
| * @param aEndpoint |
| * the service endpoint URI |
| * @param aTimeout |
| * the timeout period in millseconds, or null to use Axis's default value |
| * @param aUseAttachments |
| * whether attachments should be used to send binary-serialized data |
| * |
| * @throws MalformedURLException |
| * if <code>aEndpoint</code> is not a valid URL |
| */ |
| public AxisAnalysisEngineServiceStub(String aEndpoint, Integer aTimeout, boolean aUseAttachments) |
| throws MalformedURLException { |
| super(aEndpoint, aTimeout); |
| mUseAttachments = aUseAttachments; |
| } |
| |
| /** |
| * @see org.apache.uima.reference_impl.analysis_engine.service.AnalysisEngineServiceStub#callProcess(CAS) |
| */ |
| public void callProcess(CAS aCAS) throws ResourceServiceException { |
| final QName operationQName = new QName("http://uima.apache.org/analysis_engine", "process"); |
| final QName resultSpecTypeQName = new QName("http://uima.apache.org/analysis_engine", |
| "resultSpecification"); |
| final QName serviceDataCargoTypeQName = new QName("http://uima.apache.org/analysis_engine", |
| "serviceDataCargo"); |
| |
| try { |
| Service service = new Service(); |
| Call call = (Call) service.createCall(); |
| |
| call.setTargetEndpointAddress(getServiceEndpoint()); |
| call.setTimeout(getTimeout()); |
| call.setOperationName(operationQName); |
| |
| call.registerTypeMapping(ResultSpecification.class, resultSpecTypeQName, |
| new XmlSerializerFactory(), new XmlDeserializerFactory()); |
| call.registerTypeMapping(ServiceDataCargo.class, serviceDataCargoTypeQName, |
| new BinarySerializerFactory(mUseAttachments), new BinaryDeserializerFactory()); |
| |
| // extract data from CAS to prepare for binary serialization |
| // (do not send process trace) |
| ServiceDataCargo dataCargo = new ServiceDataCargo(aCAS, null); |
| // call service |
| Object result = call.invoke(new Object[] { dataCargo, null }); |
| // System.out.println("Got return value of class: " + result.getClass().getName()); //DEBUG |
| ServiceDataCargo resultCargo = null; |
| // if result was attachment, extract data and deserialize |
| if (result instanceof AttachmentPart) { |
| ObjectInputStream objStream = null; |
| try { |
| DataHandler dataHandler = AttachmentUtils |
| .getActivationDataHandler((AttachmentPart) result); |
| Object content = dataHandler.getContent(); |
| // System.out.println(content.getClass().getName()); |
| objStream = new ObjectInputStream((InputStream) content); |
| resultCargo = (ServiceDataCargo) objStream.readObject(); |
| } catch (IOException e) { |
| throw new ResourceServiceException(e); |
| } catch (ClassNotFoundException e) { |
| throw new ResourceServiceException(e); |
| } finally { |
| if (objStream != null) { |
| try { |
| objStream.close(); |
| } catch (IOException e) { |
| throw new ResourceServiceException(e); |
| } |
| } |
| } |
| } else if (result instanceof ServiceDataCargo) // direct return |
| { |
| resultCargo = (ServiceDataCargo) result; |
| } else { |
| throw new ResourceServiceException( |
| ResourceServiceException.UNEXPECTED_SERVICE_RETURN_VALUE_TYPE, new Object[] { |
| ServiceDataCargo.class.getName(), |
| resultCargo == null ? "null" : resultCargo.getClass().getName() }); |
| } |
| |
| // unmarshal analysis results into the original AnalysisProcessData object |
| // (do not replace CAS type system, as it should not have been changed |
| // by the service) |
| resultCargo.unmarshalCas(aCAS, false); |
| } catch (ServiceException e) { |
| throw new ResourceServiceException(e); |
| } catch (java.rmi.RemoteException e) { |
| throw new ResourceServiceException(e); |
| } catch (CASException e) { |
| throw new ResourceServiceException(e); |
| } |
| } |
| |
| /** |
| * @see org.apache.uima.reference_impl.resource.service.ResourceServiceStub#destroy() |
| */ |
| public void destroy() { |
| // no resources to clean up |
| } |
| |
| public void callBatchProcessComplete() throws ResourceServiceException { |
| // currently not implemented for SOAP services |
| } |
| |
| public void callCollectionProcessComplete() throws ResourceServiceException { |
| // currently not implemented for SOAP services |
| } |
| |
| } |