org.opencds.vmr.v1_0.mappings.out.MarshalVMR2VMRSchemaPayload.java Source code

Introduction

Here is the source code for org.opencds.vmr.v1_0.mappings.out.MarshalVMR2VMRSchemaPayload.java

Source

/**
 * Copyright 2011, 2012 OpenCDS.org
 *   Licensed 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.opencds.vmr.v1_0.mappings.out;

import java.io.ByteArrayOutputStream;
import java.io.OutputStream;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicLong;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.transform.stream.StreamResult;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.omg.dss.DSSRuntimeExceptionFault;
import org.omg.dss.EvaluationExceptionFault;
import org.omg.dss.InvalidDriDataFormatExceptionFault;
import org.omg.dss.InvalidTimeZoneOffsetExceptionFault;
import org.omg.dss.RequiredDataNotProvidedExceptionFault;
import org.omg.dss.UnrecognizedLanguageExceptionFault;
import org.omg.dss.UnrecognizedScopedEntityExceptionFault;
import org.omg.dss.UnsupportedLanguageExceptionFault;
import org.opencds.common.interfaces.IOutboundPayloadProcessor;
import org.opencds.common.structures.DSSRequestKMItem;
import org.opencds.knowledgeRepository.SimpleKnowledgeRepository;

/**
 * <p>mapper to go from flat form based on javaBeans in the project opencds-vmr
 * to external XML data described by vmr.schema in project opencds-vmr-jaxb-from-schema.
 * 
 * <p/>
 * <p>Copyright: Copyright (c) 2010</p>
 * <p>Company: OpenCDS</p>
 *
 * @author David Shields
 * @version 1.0
 * @date 09-24-2010
 * 
 */

public class MarshalVMR2VMRSchemaPayload implements IOutboundPayloadProcessor {
    private static Log log = LogFactory.getLog(MarshalVMR2VMRSchemaPayload.class);

    public synchronized String mappingOutbound(Map<String, List<?>> results, DSSRequestKMItem dssRequestKMItem)
            throws InvalidDriDataFormatExceptionFault, UnrecognizedLanguageExceptionFault,
            RequiredDataNotProvidedExceptionFault, UnsupportedLanguageExceptionFault,
            UnrecognizedScopedEntityExceptionFault, EvaluationExceptionFault, InvalidTimeZoneOffsetExceptionFault,
            DSSRuntimeExceptionFault {
        String interactionId = dssRequestKMItem.getDssRequestDataItem().getInteractionId();
        String requestedKmId = dssRequestKMItem.getRequestedKmId();
        String streamResultString = "";

        log.debug("II: " + interactionId + " KMId: " + requestedKmId + " begin buildVMRSchemaResultSet");
        BuildVMRSchemaResultSet buildVMRSchemaResultSet = BuildVMRSchemaResultSet.getInstance();
        org.opencds.vmr.v1_0.schema.CDSOutput cdsXMLOutput = buildVMRSchemaResultSet.buildResultSet(results,
                dssRequestKMItem);

        log.debug("II: " + interactionId + " KMId: " + requestedKmId + " finish buildVMRSchemaResultSet");
        dssRequestKMItem.getKmTimingData().setFinishBuildOutputTime(new AtomicLong(System.nanoTime()));

        JAXBElement<org.opencds.vmr.v1_0.schema.CDSOutput> jaxbCDSOutput;

        try {
            log.debug("II: " + interactionId + " KMId: " + requestedKmId + " begin factory.createCdsOutput");

            org.opencds.vmr.v1_0.schema.ObjectFactory factory = new org.opencds.vmr.v1_0.schema.ObjectFactory();
            jaxbCDSOutput = factory.createCdsOutput(cdsXMLOutput);

            log.debug("II: " + interactionId + " KMId: " + requestedKmId + " finish factory.createCdsOutput");
        } catch (RuntimeException e) {
            e.printStackTrace();
            throw new DSSRuntimeExceptionFault("RuntimeException in mappingOutbound ObjectFactory cdsOutput: "
                    + e.getMessage() + ", vmrOutput=" + cdsXMLOutput.getVmrOutput().toString(), e);
        }

        if ((null == cdsXMLOutput)
                || ((null == cdsXMLOutput.getSimpleOutput()) && (null == cdsXMLOutput.getVmrOutput()))) {
            // show the tags, but empty payload
            streamResultString = "";
            //FIXME          throw new DSSRuntimeExceptionFault("Marshalled Rules Engine results are empty.");

        } else {
            log.debug("II: " + interactionId + " KMId: " + requestedKmId
                    + " begin marshalling results to external VMR: "
                    + cdsXMLOutput.getVmrOutput().getTemplateId().toString());

            ByteArrayOutputStream output = new ByteArrayOutputStream();
            StreamResult streamResult = new StreamResult();
            streamResult.setOutputStream(output);

            try {
                JAXBContext jaxbContext = SimpleKnowledgeRepository
                        .getRequiredJAXBContextForMarshallerClassCache(this.getClass().getName());

                Marshaller marshaller = SimpleKnowledgeRepository
                        .getRequiredMarshallerInstanceForMarshallerClassCache(this.getClass().getName(),
                                jaxbContext);

                marshaller.marshal(jaxbCDSOutput, streamResult);

            } catch (JAXBException e) {
                e.printStackTrace();
                throw new EvaluationExceptionFault(
                        "JAXBException in mappingOutbound marshalling cdsOutput: " + e.getMessage(), e);
            } catch (RuntimeException e) {
                e.printStackTrace();
                throw new DSSRuntimeExceptionFault(
                        "RuntimeException in mappingOutbound marshalling cdsOutput: " + e.getMessage(), e);
            }

            log.debug("II: " + interactionId + " KMId: " + requestedKmId
                    + " finished marshalling results to external VMR: "
                    + cdsXMLOutput.getVmrOutput().getTemplateId().toString());

            OutputStream outputStream = streamResult.getOutputStream();
            streamResultString = outputStream.toString();

        }

        dssRequestKMItem.getKmTimingData().setFinishMarshalTime(new AtomicLong(System.nanoTime()));

        return streamResultString;
    }

}