com.ibm.rpe.web.service.docgen.servlet.XmlToJSON.java Source code

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Here is the source code for com.ibm.rpe.web.service.docgen.servlet.XmlToJSON.java

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/*******************************************************************************
 * Licensed Materials - Property of IBM
 *  Copyright IBM Corporation 2015. All Rights Reserved.
 * 
 * Note to U.S. Government Users Restricted Rights:
 * Use, duplication or disclosure restricted by GSA ADP Schedule
 * Contract with IBM Corp. 
 *******************************************************************************/
package com.ibm.rpe.web.service.docgen.servlet;

import java.io.InputStream;

import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import javax.ws.rs.core.UriBuilder;

import org.apache.commons.io.IOUtils;
import org.json.JSONObject;
import org.json.XML;

import com.ibm.rpe.web.service.docgen.utils.JSONUtils;
import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.WebResource;

/**
 * Servlet implementation class converting xml to json
 */
@Path("/utils/xmltojson")
public class XmlToJSON {

    @GET
    @Produces({ MediaType.APPLICATION_JSON, MediaType.TEXT_PLAIN })
    public Response convertXmlToJson(@Context HttpServletRequest request, @QueryParam("url") String xmlUrl)
            throws Exception {
        try {
            Client client = new Client();
            WebResource service = client.resource(UriBuilder.fromUri(xmlUrl).build());

            ClientResponse clientResponse = service.accept(MediaType.APPLICATION_XML).get(ClientResponse.class);
            if (Response.Status.OK.getStatusCode() != clientResponse.getStatus()) {
                return Response.serverError().status(Status.BAD_REQUEST)
                        .entity(clientResponse.getEntity(String.class)).build();
            }
            InputStream xmlStream = clientResponse.getEntityInputStream();
            String xmlAsString = IOUtils.toString(xmlStream, "UTF-8");

            return Response.ok().entity(getXMLfromJson(xmlAsString)).build();
        } catch (Exception e) {
            e.printStackTrace();
            return Response.serverError().status(Status.BAD_REQUEST)
                    .entity(JSONUtils.writeValue(e.getLocalizedMessage())).build();
        }
    }

    private String getXMLfromJson(String xmlContent) {
        JSONObject jsonObj = XML.toJSONObject(xmlContent);
        return jsonObj.toString();
    }
}