Page History

...

Right click on JavaResources:src and select New->Package (or Ctrl+N, start typing package and select Package)
Name the package to org.apache.geronimo.samples.jaxws.rest and click Finish
Right click on the new package and select New->Class (or Ctrl+N, start typing class and select Class)
Name the class as ConverterService and click Finish

Add the following code to the ConverterService class

Code Block

borderStyle	solid
title	ConverterService.java
borderStyle	solid


package org.apache.geronimo.samples.jaxws.rest;

import java.io.ByteArrayInputStream;
import java.math.BigDecimal;

import javax.annotation.Resource;
import javax.servlet.ServletRequest;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Source;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamSource;
import javax.xml.ws.BindingType;
import javax.xml.ws.Provider;
import javax.xml.ws.WebServiceContext;
import javax.xml.ws.WebServiceProvider;
import javax.xml.ws.handler.MessageContext;
import javax.xml.ws.http.HTTPBinding;
import javax.xml.ws.http.HTTPException;

import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;

@WebServiceProvider
@BindingType(value = HTTPBinding.HTTP_BINDING)
public class ConverterService implements Provider<Source> {

    @Resource
    protected WebServiceContext wsContext;

    private BigDecimal rupeeRate = new BigDecimal("40.58");
    private BigDecimal euroRate = new BigDecimal("0.018368");

    public Source invoke(Source source) {
        try {
            String amount = null;

            if (source == null) {
                System.out.println("Getting input from query string");
                MessageContext mc = wsContext.getMessageContext();
                String query = (String) mc.get(MessageContext.QUERY_STRING);
                System.out.println("Query String = " + query);
                ServletRequest req = (ServletRequest) mc.get(MessageContext.SERVLET_REQUEST);
                amount = req.getParameter("amount");
            } else {
                System.out.println("Getting input from input message");
                Node n = null;
                if (source instanceof DOMSource) {
                    n = ((DOMSource) source).getNode();
                } else if (source instanceof StreamSource) {
                    StreamSource streamSource = (StreamSource) source;
                    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
                    DocumentBuilder db = dbf.newDocumentBuilder();
                    InputSource inputSource = null;
                    if (streamSource.getInputStream() != null) {
                        inputSource = new InputSource(streamSource.getInputStream());
                    } else if (streamSource.getReader() != null) {
                        inputSource = new InputSource(streamSource.getReader());
                    }
                    n = db.parse(inputSource);
                } else {
                    throw new RuntimeException("Unsupported source: " + source);
                }
                NodeList children = n.getChildNodes();
                for (int i = 0; i < children.getLength(); i++) {
                    Node child = children.item(i);
                    if (child.getNodeName().equals("dollars")) {
                        amount = child.getAttributes().getNamedItem("amount").getNodeValue();
                        break;
                    }
                }
            }
            BigDecimal dollars = new BigDecimal(amount);
            BigDecimal rupees = dollarToRupees(dollars);
            BigDecimal euros = rupeesToEuro(rupees);
            return createResultSource(rupees, euros);
        } catch (Exception e) {
            e.printStackTrace();
            throw new HTTPException(500);
        }
    }

    public BigDecimal dollarToRupees(BigDecimal dollars) {
        BigDecimal result = dollars.multiply(rupeeRate);
        return result.setScale(2, BigDecimal.ROUND_UP);
    }

    public BigDecimal rupeesToEuro(BigDecimal rupees) {
        BigDecimal result = rupees.multiply(euroRate);
        return result.setScale(2, BigDecimal.ROUND_UP);
    }

    private Source createResultSource(BigDecimal rupees, BigDecimal euros) {
        String body = "<ns:return xmlns:ns=\"http://rest.jaxws.samples.geronimo.apache.org\">"
                + "<ns:dollarToRupeesResponse>" + rupees + "</ns:dollarToRupeesResponse><ns:rupeesToEurosResponse>"
                + euros + "</ns:rupeesToEurosResponse></ns:return>";
        Source source = new StreamSource(new ByteArrayInputStream(body.getBytes()));
        return source;
    }
}

...

Expand WEB-INF directory and add the following code to the deployment descriptor (web.xml) solid

Code Block

borderStyle

title	web.xml
borderStyle	solid


<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  xmlns="http://java.sun.com/xml/ns/javaee"
  xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
  id="WebApp_ID" version="2.5">
  <display-name>jaxws-rest-converter</display-name>
  <servlet>
    <servlet-name>ConverterService</servlet-name>
    <servlet-class> org.apache.geronimo.samples.jaxws.rest.ConverterService </servlet-class>
    <load-on-startup>0</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>ConverterService</servlet-name>
    <url-pattern>/converter</url-pattern>
  </servlet-mapping>
</web-app>

...

Child pages

Versions Compared

Old Version 7

New Version 8

Key