com.unilever.audit.services2.Sync_Up.java Source code

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Here is the source code for com.unilever.audit.services2.Sync_Up.java

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package com.unilever.audit.services2;

import com.unilever.audit.entities.Customers;
import com.unilever.audit.entities.Merchandisers;
import com.unilever.audit.entities.Visit;
import com.unilever.audit.services.VisitFacadeREST;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.zip.GZIPInputStream;
import javax.annotation.Resource;
import javax.ws.rs.Consumes;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.enterprise.context.RequestScoped;
import javax.inject.Inject;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.transaction.HeuristicMixedException;
import javax.transaction.HeuristicRollbackException;
import javax.transaction.RollbackException;
import javax.transaction.SystemException;
import javax.transaction.UserTransaction;
import javax.ws.rs.POST;
import org.apache.commons.io.IOUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

/**
 * REST Web Service
 *
 * @author ESR
 */
@Path("Sync_Up")
@RequestScoped
public class Sync_Up {

    @PersistenceContext(unitName = "com.unilever_audit_war_1.0-SNAPSHOTPU")
    private EntityManager em;

    @Resource
    private UserTransaction utx;

    @Inject
    private VisitFacadeREST visitFacadeREST;

    /**
     * Creates a new instance of SyncUpResource
     */
    public Sync_Up() {
    }

    /**
     * Retrieves representation of an instance of
     * com.unilever.audit.services2.SyncUpResource
     *
     * @return an instance of java.lang.String
     */
    @POST
    @Produces("application/json")
    @Consumes("text/plain")
    public String postSyncUP(byte[] jsonByte) throws IOException {
        //TODO return proper representation object
        JSONObject syncUPJsonObj;
        byte[] buffer;
        try {
            /**
             * ***************** Decompress JsonObject ***********************
             */
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            GZIPInputStream in;
            in = new GZIPInputStream(new ByteArrayInputStream(jsonByte));
            IOUtils.copy(in, out);
            buffer = out.toByteArray();
            syncUPJsonObj = new JSONObject(new String(buffer));

            /**
             * *********** Call Methods To Save Sync UP objects **************
             */
            persistVisit(syncUPJsonObj);

        } catch (IOException ex) {
            ex.printStackTrace();
        } catch (JSONException ex) {
            ex.printStackTrace();
        }

        return null;
    }

    private void persistVisit(JSONObject obj) {
        try {
            JSONArray visitsArr = obj.getJSONArray("visits");
            for (int i = 0; i < visitsArr.length(); i++) {

                JSONObject visitObj = (JSONObject) visitsArr.get(i);
                Visit v = new Visit();

                v.setId(visitObj.getString("id"));

                Customers c = em.getReference(Customers.class, new BigDecimal(visitObj.getInt("customerid")));
                v.setCustomerid(c);

                Merchandisers m = em.getReference(Merchandisers.class, new BigDecimal(visitObj.getInt("merchid")));
                v.setMerchandiserid(m);

                try {
                    Date date = new SimpleDateFormat("EEE MMM d HH:mm:ss zzz yyyy")
                            .parse(visitObj.getString("finishdate"));
                    v.setVisitdate(date);
                } catch (java.text.ParseException ex) {
                    ex.printStackTrace();
                }

                v.setSubmitteddate(new Date());
                visitFacadeREST.create(v);
            }
        } catch (JSONException ex) {
            ex.printStackTrace();
        }
    }

}