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*/
package org.biohackathon.SPARQLBuilder.www;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.*;
import javax.json.*;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.biohackathon.SPARQLBuilder.OWL.*;
/**
*
* @author atsuko
*/
@WebServlet(name = "CLServlet", urlPatterns = {"/clist"})
public class CLServlet extends HttpServlet {
private static final String FILENAME = "cdata/";
/**
* Processes requests for both HTTP GET and POST
* methods.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
try (PrintWriter out = response.getWriter()) {
/* TODO output your page here. You may use following sample code. */
out.println("");
out.println("");
out.println("");
out.println("Servlet CLServlet");
out.println("");
out.println("");
out.println("Servlet CLServlet at " + request.getContextPath() + "
");
out.println("");
out.println("");
}
}
//
/**
* Handles the HTTP GET method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//processRequest(request, response);
response.setContentType("application/json;charset=UTF-8");
response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Methods", "GET");
response.setHeader("Access-Control-Allow-Headers", request.getHeader("Access-Control-Request-Headers"));
response.setHeader("Access-Control-Max-Age", "-1");
PrintWriter out = response.getWriter();
String ep = request.getParameter("ep");
HttpSession session = request.getSession();
QueryPathGenerator qpg = (QueryPathGenerator)session.getAttribute("qpg");
SortedSet sortedClasses = null;
String classURI = request.getParameter("class");
if ( qpg == null ){
qpg = new QueryPathGenerator();
}
if ( ep == null ){
JsonBuilderFactory jbfactory = Json.createBuilderFactory(null);
TreeSet classes = new TreeSet();
if ( classURI == null ){
String[] eplist = qpg.getFactory().getEndpointURIList();
for ( int i = 0; i < eplist.length; i++ ){
try{
qpg.setSPARQLendpoint(eplist[i]);
SClass[] cls = qpg.getClasses(null);
qpg.setClassLabels(cls);
for (int j = 0; j < cls.length; j++ ){
classes.add(qpg.getClassLabel(cls[j].getClassURI()).concat("\t")
.concat(cls[j].getClassURI()).concat("\t")
.concat(new Integer(cls[j].getNumOfInstances()).toString())
.concat("\t").concat(eplist[i]));
}
}catch(Exception e){
e.printStackTrace();
System.err.println(e);
}
}
}else{ // classURI
Map epclist = new HashMap();
// KOKO TODO TODO
}
JsonArray ja = getJsonArrayFromClasses(jbfactory, classes);
out.print(ja);
return;
}
qpg.setSPARQLendpoint(ep);
SClass[] classes = null;
if ( classURI != null ){
qpg.setOWLClassGraph(classURI); //koko part? chk?
classes = qpg.getReachableClasses();
}else{
classes = qpg.getClasses(null);
}
sortedClasses = qpg.getSortedClasses(classes);
JsonBuilderFactory jbfactory = Json.createBuilderFactory(null);
JsonArray ja = getJsonArrayFromSortedClasses(jbfactory, sortedClasses, ep);
out.print(ja);
}
/**
* Handles the HTTP POST method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/**
* Returns a short description of the servlet.
*
* @return a String containing servlet description
*/
@Override
public String getServletInfo() {
return "Short description";
}//
private JsonArray getJsonArrayFromSortedClasses(JsonBuilderFactory jbfactory,
SortedSet sortedClasses, String ep){
JsonArrayBuilder jab = jbfactory.createArrayBuilder();
Iterator cit = sortedClasses.iterator();
List tmpclasses = new LinkedList();
JsonObjectBuilder job = jbfactory.createObjectBuilder();
while( cit.hasNext() ){
String classinfo = cit.next();
String[] data = classinfo.split("\t");
if (data.length != 3 ){
System.out.println("data is wrong?");
}
if (data[0].matches("^[0-9]*$")){
tmpclasses.add(classinfo);
}else{
job.add("ep", ep);
job.add("uri", data[2]);
job.add("label", data[0]);
job.add("number", data[1]);
jab.add(job);
}
}
cit = tmpclasses.iterator();
while( cit.hasNext() ){
String classinfo = cit.next();
String[] data = classinfo.split("\t");
if (data.length != 3 ){
System.out.println("data is wrong?");
}
job.add("ep", ep);
job.add("uri", data[2]);
job.add("label", data[0]);
job.add("number", data[1]);
jab.add(job);
}
JsonArray ja = jab.build();
return ja;
}
private JsonArray getJsonArrayFromClasses(JsonBuilderFactory jbfactory, TreeSet cl){
JsonArrayBuilder jab = jbfactory.createArrayBuilder();
JsonObjectBuilder job = jbfactory.createObjectBuilder();
Iterator cit = cl.iterator();
while( cit.hasNext() ){
String classinfo = cit.next();
String[] data = classinfo.split("\t");
if (data.length != 4 ){
System.out.println("data is wrong?"); // KOKO
}else{
job.add("ep", data[3]);
job.add("uri", data[1]);
job.add("label", data[0]);
job.add("number", data[2]);
jab.add(job);
}
}
JsonArray ja = jab.build();
return ja;
}
}