Android Open Source - andro_auto_framework Record Entries Resource

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License

The source code is released under:

Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCT...

Java Source Code

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor./*from w  w  w .  j  a va  2 s .  co m*/
 */
package com.imaginea.botbot.server.service;

import com.imaginea.botbot.server.jpa.RecordEntry;
import java.util.Collection;
import javax.ws.rs.Path;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Produces;
import javax.ws.rs.Consumes;
import javax.ws.rs.PathParam;
import javax.ws.rs.QueryParam;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.UriInfo;
import javax.persistence.EntityManager;
import com.imaginea.botbot.server.jpa.RecordSession;
import com.imaginea.botbot.server.converter.RecordEntriesConverter;
import com.imaginea.botbot.server.converter.RecordEntryConverter;
import com.sun.jersey.api.core.ResourceContext;
import java.net.URI;

/**
 *
 * @author rohit
 */
@Path("/recordentries/")
public class RecordEntriesResource {
    @Context
    protected com.sun.jersey.api.core.ResourceContext resourceContext;
    @Context
    protected javax.ws.rs.core.UriInfo uriInfo;

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

    /**
     * Get method for retrieving a collection of RecordEntry instance in XML format.
     *
     * @return an instance of RecordEntriesConverter
     */
    @GET
    @Produces({"application/xml", "application/json"})
    public RecordEntriesConverter get(@QueryParam("start")
            @DefaultValue("0") int start, @QueryParam("max")
            @DefaultValue("100") int max, @QueryParam("expandLevel")
            @DefaultValue("1") int expandLevel, @QueryParam("query")
            @DefaultValue("SELECT e FROM RecordEntry e") String query) {
        PersistenceService persistenceSvc = PersistenceService.getInstance();
        try {
            persistenceSvc.beginTx();
            return new RecordEntriesConverter(getEntities(start, max, query), uriInfo.getAbsolutePath().resolve(URI.create("")), expandLevel);
        } finally {
            persistenceSvc.commitTx();
            persistenceSvc.close();
        }
    }

    /**
     * Post method for creating an instance of RecordEntry using XML as the input format.
     *
     * @param data an RecordEntryConverter entity that is deserialized from an XML stream
     * @return an instance of RecordEntryConverter
     */
    @POST
    @Consumes({"application/xml", "application/json"})
    public javax.ws.rs.core.Response post(RecordEntryConverter data) {
        PersistenceService persistenceSvc = PersistenceService.getInstance();
        try {
            persistenceSvc.beginTx();
            EntityManager em = persistenceSvc.getEntityManager();
            RecordEntry entity = data.resolveEntity(em);
            createEntity(data.resolveEntity(em));
            persistenceSvc.commitTx();
            //return Response.created(uriInfo.getAbsolutePath().resolve(entity.getId() + "/")).build();
            return Response.created(URI.create(entity.getId().toString())).build();
        } finally {
            persistenceSvc.close();
        }
    }

    /**
     * Returns a dynamic instance of RecordEntryResource used for entity navigation.
     *
     * @return an instance of RecordEntryResource
     */
    @Path("{id}/")
    public RecordEntryResource getRecordResource(@PathParam("id") Long id) {
        RecordEntryResource recordResource = resourceContext.getResource(RecordEntryResource.class);
        recordResource.setId(id);
        return recordResource;
    }

    /**
     * Returns all the entities associated with this resource.
     *
     * @return a collection of RecordEntry instances
     */
    protected Collection<RecordEntry> getEntities(int start, int max, String query) {
        EntityManager em = PersistenceService.getInstance().getEntityManager();
        return em.createQuery(query).setFirstResult(start).setMaxResults(max).getResultList();
    }

    /**
     * Persist the given entity.
     *
     * @param entity the entity to persist
     */
    protected void createEntity(RecordEntry entity) {
        entity.setId(null);
        EntityManager em = PersistenceService.getInstance().getEntityManager();
        em.persist(entity);
        RecordSession recordSession = entity.getRecordSession();
        if (recordSession != null) {
            recordSession.getRecordEntries().add(entity);
        }
    }
}

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