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Java example source code file (FlowResource.java)

This example Java source code file (FlowResource.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

flowresource, get, modelinfo, nodereport, path, post, queryparam, response, sessionstorage, string, util

The FlowResource.java Java example source code

package org.deeplearning4j.ui.flow;

import org.deeplearning4j.ui.flow.beans.ModelInfo;
import org.deeplearning4j.ui.flow.beans.NodeReport;
import org.deeplearning4j.ui.storage.SessionStorage;
import org.deeplearning4j.ui.storage.def.ObjectType;

import javax.ws.rs.*;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.util.Collections;
import java.util.concurrent.locks.ReentrantReadWriteLock;

/**
 * Almost RESTful interface for FlowIterationListener.
 *
 * @author raver119@gmail.com
 */
@Path("/flow")
public class FlowResource {
    private SessionStorage storage = SessionStorage.getInstance();

    @GET
    @Path("/state")
    @Produces(MediaType.APPLICATION_JSON)
    public Response getState(@QueryParam("sid") String sessionId) {
        // TODO: to be improved with HistoryStorage
        ModelInfo model = (ModelInfo) storage.getObject(sessionId, ObjectType.FLOW);
        return Response.ok(model).build();
    }

    @POST
    @Path("/state")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    public Response postState(ModelInfo info, @QueryParam("sid") String sessionId) {
        storage.putObject(sessionId, ObjectType.FLOW, info);

        return Response.ok(Collections.singletonMap("status","ok")).build();
    }

    @GET
    @Path("/action/{id}")
    @Produces(MediaType.TEXT_HTML)
    public Response getAction(@PathParam("id") long id) {
        // TODO: to be implemented
        // TODO: not sure, if we need this to be TEXT_HTML though. Investigate options.
        return Response.ok().build();
    }

    @POST
    @Path("/action/{id}")
    @Consumes(MediaType.APPLICATION_JSON)
    public Response postState(@PathParam("id") long id, NodeReport report) {
        // TODO: to be implemented
        return Response.ok().build();
    }
}

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