/*
* JBoss, Home of Professional Open Source
* Copyright 2015, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.as.quickstarts.managedexecutorservice.rest;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.logging.Logger;
import javax.annotation.Resource;
import javax.enterprise.concurrent.ManagedExecutorService;
import javax.enterprise.inject.Instance;
import javax.inject.Inject;
import javax.ws.rs.Consumes;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.jboss.as.quickstarts.managedexecutorservice.concurrency.DeleteTask;
import org.jboss.as.quickstarts.managedexecutorservice.concurrency.LongRunningTask;
import org.jboss.as.quickstarts.managedexecutorservice.concurrency.PersitTask;
import org.jboss.as.quickstarts.managedexecutorservice.model.Product;
@Path("/products")
public class ProductResourceRESTService {
@Inject
private Logger log;
@Resource
private ManagedExecutorService managedExecutorService;
// Here we use Instance so PersistTask can have CDI injections available
@Inject
private Instance<PersitTask> persisTaskInstance;
// Here we use Instance so LongRunningTask can have CDI injections available
@Inject
private Instance<LongRunningTask> longRunningTaskIntance;
// Here we use Instance so DeleteTask can have CDI injections available
@Inject
private Instance<DeleteTask> deleteTaskInstance;
/**
* Creates a new contact from the values provided and will return a JAX-RS response with either 200 ok, or 400 (BAD REQUEST)
* in case of errors.
*/
@POST
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public Response createContact(Product product) {
Response.ResponseBuilder builder = null;
try {
PersitTask pt = persisTaskInstance.get();
pt.setProduct(product);
// Store the product on a separated Thread
log.info("Will create a new Product on other Thread");
managedExecutorService.execute(pt);
// Create an "ok" response with the persisted contact
log.info("Returning response");
builder = Response.ok();
} catch (Exception e) {
// Handle generic exceptions
e.printStackTrace();
builder = Response.status(Response.Status.BAD_REQUEST).entity(e.getMessage());
}
return builder.build();
}
@GET
@Path("/longrunningtask")
public String processLongRunningTask() throws InterruptedException, ExecutionException {
LongRunningTask lrt = longRunningTaskIntance.get();
log.info("Submitting a new long running task to be executed");
Future<Integer> futureResult = managedExecutorService.submit(lrt);
// wait for the result to be available
while (!futureResult.isDone()) {
log.info("Waiting for the result to be available...");
Thread.sleep(300);
}
Integer result = futureResult.get();
log.info("Result is available. Returning result..." + result);
// Return the result
return "Result: " + result;
}
@DELETE
public Response deleteAllProducts() {
DeleteTask dt = deleteTaskInstance.get();
// Delete all Products on a separated Thread
log.info("Will delete all Products on other Thread");
managedExecutorService.execute(dt);
log.info("Returning response");
return Response.ok().build();
}
}