edu.harvard.i2b2.query.QueryListNamesClient.java Source code

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Here is the source code for edu.harvard.i2b2.query.QueryListNamesClient.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: 
 *     Wensong Pan
 *     
 */

/**
 * 
 */
package edu.harvard.i2b2.query;

import java.io.StringReader;

import javax.swing.JOptionPane;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamReader;

import org.apache.axiom.om.OMElement;
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.context.ConfigurationContext;
import org.apache.axis2.context.ConfigurationContextFactory;
import org.apache.axis2.transport.http.HTTPConstants;
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;

/**
 * @author wp066
 *
 */
public class QueryListNamesClient {
    private static final Log log = LogFactory.getLog(QueryListNamesClient.class);
    private static EndpointReference targetEPR;

    public static OMElement getQueryPayLoad(String XMLstr) throws Exception {
        StringReader strReader = new StringReader(XMLstr);
        XMLInputFactory xif = XMLInputFactory.newInstance();
        XMLStreamReader reader = xif.createXMLStreamReader(strReader);

        StAXOMBuilder builder = new StAXOMBuilder(reader);
        OMElement lineItem = builder.getDocumentElement();
        //System.out.println("Line item string " + lineItem.toString());
        return lineItem;
    }

    private static String getCRCNavigatorQueryProcessorServiceName() {
        return UserInfoBean.getInstance().getCellDataUrl("pdo") + "request";
    }

    public static String sendQueryRequestREST(String XMLstr) {
        try {
            OMElement payload = getQueryPayLoad(XMLstr);
            Options options = new Options();
            targetEPR = new EndpointReference(getCRCNavigatorQueryProcessorServiceName());
            options.setTo(targetEPR);
            options.setTo(targetEPR);
            options.setTransportInProtocol(Constants.TRANSPORT_HTTP);
            options.setProperty(Constants.Configuration.ENABLE_REST, Constants.VALUE_TRUE);
            options.setProperty(HTTPConstants.SO_TIMEOUT, new Integer(10000));
            options.setProperty(HTTPConstants.CONNECTION_TIMEOUT, new Integer(10000));

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

            OMElement result = sender.sendReceive(payload);
            //System.out.println("Response XML: "+result.toString());
            return result.toString();
        } catch (AxisFault axisFault) {
            axisFault.printStackTrace();
            java.awt.EventQueue.invokeLater(new Runnable() {
                public void run() {
                    JOptionPane.showMessageDialog(null,
                            "Trouble with connection to the remote server, "
                                    + "this is often a network error, please try again",
                            "Network Error", JOptionPane.INFORMATION_MESSAGE);
                }
            });

            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static String sendQueryRequestSOAP(String XMLstr) {
        try {

            HttpTransportProperties.Authenticator basicAuthentication = new HttpTransportProperties.Authenticator();

            basicAuthentication.setUsername(UserInfoBean.getInstance().getUserName());
            basicAuthentication.setPassword(UserInfoBean.getInstance().getUserPassword());

            OMElement payload = getQueryPayLoad(XMLstr);
            Options options = new Options();

            // options.setProperty(HTTPConstants.PROXY, proxyProperties);
            targetEPR = new EndpointReference(getCRCNavigatorQueryProcessorServiceName());
            options.setTo(targetEPR);
            options.setProperty(org.apache.axis2.transport.http.HTTPConstants.AUTHENTICATE, basicAuthentication);
            options.setTransportInProtocol(Constants.TRANSPORT_HTTP);
            options.setTimeOutInMilliSeconds(2000);
            ConfigurationContext configContext = ConfigurationContextFactory
                    .createConfigurationContextFromFileSystem(null, null);

            // Blocking invocation
            ServiceClient sender = new ServiceClient(configContext, null);
            sender.setOptions(options);

            OMElement result = sender.sendReceive(payload);
            //System.out.println("Response XML: "+result.toString());
            return result.toString();
        } catch (AxisFault axisFault) {
            axisFault.printStackTrace();
            if (axisFault.getMessage().indexOf("No route to host") >= 0) {
                java.awt.EventQueue.invokeLater(new Runnable() {
                    public void run() {
                        JOptionPane.showMessageDialog(null,
                                "Unable to make a connection to the remote server,\n this is often a network error, please try again",
                                "Network Error", JOptionPane.INFORMATION_MESSAGE);
                    }
                });
            } else if (axisFault.getMessage().indexOf("Read timed out") >= 0) {
                java.awt.EventQueue.invokeLater(new Runnable() {
                    public void run() {
                        JOptionPane.showMessageDialog(null,
                                "Unable to obtain a response from the remote server, this is often a network error, please try again",
                                "Network Error", JOptionPane.INFORMATION_MESSAGE);
                    }
                });
            }
            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static void main(String[] args) throws Exception {
        try {
            HttpTransportProperties.Authenticator basicAuthentication = new HttpTransportProperties.Authenticator();

            basicAuthentication.setUsername(UserInfoBean.getInstance().getUserName());
            basicAuthentication.setPassword(UserInfoBean.getInstance().getUserPassword());

            OMElement payload = getQueryPayLoad("");
            Options options = new Options();

            // options.setProperty(HTTPConstants.PROXY, proxyProperties);
            options.setTo(targetEPR);
            options.setProperty(org.apache.axis2.transport.http.HTTPConstants.AUTHENTICATE, basicAuthentication);
            options.setTransportInProtocol(Constants.TRANSPORT_HTTP);

            ConfigurationContext configContext = ConfigurationContextFactory
                    .createConfigurationContextFromFileSystem(null, null);

            // Blocking invocation
            ServiceClient sender = new ServiceClient(configContext, null);
            sender.setOptions(options);

            OMElement result = sender.sendReceive(payload);
            //System.out.println(result.toString());

        } catch (AxisFault axisFault) {
            axisFault.printStackTrace();
        }
    }
}