edu.harvard.i2b2.eclipse.plugins.pft.ws.PFTServiceDriver2.java Source code

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Here is the source code for edu.harvard.i2b2.eclipse.plugins.pft.ws.PFTServiceDriver2.java

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/*
 * Copyright (c) 2006-2007 Massachusetts General Hospital 
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the i2b2 Software License v1.0 
 * which accompanies this distribution. 
 * 
 * Contributors:
 */

package edu.harvard.i2b2.eclipse.plugins.pft.ws;

import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.StringReader;

import javax.xml.stream.FactoryConfigurationError;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamReader;

import org.apache.axiom.om.OMAbstractFactory;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMFactory;
import org.apache.axiom.om.OMNamespace;
import org.apache.axiom.om.impl.builder.StAXOMBuilder;
import org.apache.axis2.AxisFault;
import org.apache.axis2.Constants;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.client.Options;
import org.apache.axis2.client.ServiceClient;
import org.apache.axis2.transport.http.HttpTransportProperties;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import edu.harvard.i2b2.eclipse.UserInfoBean;

public class PFTServiceDriver2 {

    public static final String THIS_CLASS_NAME = PFTServiceDriver2.class.getName();
    private static Log log = LogFactory.getLog(THIS_CLASS_NAME);

    //private static EndpointReference testEPR = new EndpointReference(
    //      "http://localhost:8080/axis2/rest/PFTService");

    /**
     * Function to send requestPdo to PFT web service
     * 
     * @param requestPdo   String requestPdo to send to PFT web service
     * @return A String containing the PFT web service response 
     */

    public static String callPft(String requestPdo) throws Exception {
        String response = null;
        try {
            OMElement getPft = getPFTPayLoad(requestPdo);
            Options options = new Options();
            log.info("REST = " + UserInfoBean.getInstance().getCellDataUrl("pft") + "getPulmonaryData");
            options.setTo(
                    new EndpointReference(UserInfoBean.getInstance().getCellDataUrl("pft") + "getPulmonaryData"));
            options.setTransportInProtocol(Constants.TRANSPORT_HTTP);
            options.setProperty(Constants.Configuration.ENABLE_REST, Constants.VALUE_TRUE);

            ServiceClient sender = new ServiceClient();
            sender.setOptions(options);

            OMElement result = sender.sendReceive(getPft);
            response = result.getFirstElement().toString();
            log.debug("PFT response = " + response);
        } catch (AxisFault e) {
            log.error(e.getMessage());
            e.printStackTrace();
            throw new Exception(e);
        } catch (Exception e) {
            log.error(e.getMessage());
            throw new Exception(e);
        }
        return response;
    }

    public static OMElement getVersion() {
        OMFactory fac = OMAbstractFactory.getOMFactory();
        OMNamespace omNs = fac.createOMNamespace("http://axisversion.sample/xsd", "tns");

        OMElement method = fac.createOMElement("getVersion", omNs);

        return method;
    }

    /**
     * Function to convert PFT requestPdo to OMElement
     * 
     * @param requestPdo   String requestPdo to send to PFT web service
     * @return An OMElement containing the PFT web service requestPdo
     */
    public static OMElement getPFTPayLoad(String requestPdo) throws Exception {
        OMElement method = null;
        try {
            OMFactory fac = OMAbstractFactory.getOMFactory();
            OMNamespace omNs = fac.createOMNamespace("http://i2b2.mgh.harvard.edu/message", "i2b2");
            method = fac.createOMElement("getPulmonaryData", omNs);

            StringReader strReader = new StringReader(requestPdo);
            XMLInputFactory xif = XMLInputFactory.newInstance();
            XMLStreamReader reader = xif.createXMLStreamReader(strReader);

            StAXOMBuilder builder = new StAXOMBuilder(reader);
            OMElement lineItem = builder.getDocumentElement();
            method.addChild(lineItem);
        } catch (FactoryConfigurationError e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            log.error(e.getMessage());
            throw new Exception(e);
        }
        return method;
    }

}