package org.hornetq.rest.queue;
import org.hornetq.api.core.HornetQException;
import org.hornetq.api.core.client.ClientMessage;
import org.hornetq.api.core.client.ClientProducer;
import org.hornetq.api.core.client.ClientSession;
import org.hornetq.api.core.client.ClientSessionFactory;
import org.hornetq.rest.HornetQRestLogger;
import org.hornetq.rest.util.HttpMessageHelper;
import org.hornetq.api.core.Message;
import org.hornetq.utils.UUID;
import org.hornetq.utils.UUIDGenerator;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.QueryParam;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriBuilder;
import javax.ws.rs.core.UriInfo;
import java.net.URI;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
/**
* @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
* @version $Revision: 1 $
*/
public class PostMessage
{
protected ClientSessionFactory sessionFactory;
protected String destination;
protected boolean defaultDurable = false;
protected DestinationServiceManager serviceManager;
private AtomicLong counter = new AtomicLong(1);
private final String startupTime = Long.toString(System.currentTimeMillis());
protected long producerTimeToLive;
protected ArrayBlockingQueue<Pooled> pool;
protected int poolSize = 10;
protected static class Pooled
{
public ClientSession session;
public ClientProducer producer;
private Pooled(ClientSession session, ClientProducer producer)
{
this.session = session;
this.producer = producer;
}
}
protected String generateDupId()
{
return startupTime + Long.toString(counter.incrementAndGet());
}
public void publish(HttpHeaders headers, byte[] body, String dup,
boolean durable,
Long ttl,
Long expiration,
Integer priority) throws Exception
{
Pooled pooled = getPooled();
try
{
ClientProducer producer = pooled.producer;
ClientMessage message = createHornetQMessage(headers, body, durable, ttl, expiration, priority, pooled.session);
message.putStringProperty(ClientMessage.HDR_DUPLICATE_DETECTION_ID.toString(), dup);
producer.send(message);
HornetQRestLogger.LOGGER.debug("Sent message: " + message);
pool.add(pooled);
}
catch (Exception ex)
{
try
{
pooled.session.close();
}
catch (HornetQException e)
{
}
addPooled();
throw ex;
}
}
@PUT
@Path("{id}")
public Response putWithId(@PathParam("id") String dupId, @QueryParam("durable") Boolean durable,
@QueryParam("ttl") Long ttl,
@QueryParam("expiration") Long expiration,
@QueryParam("priority") Integer priority,
@Context HttpHeaders headers, @Context UriInfo uriInfo, byte[] body)
{
HornetQRestLogger.LOGGER.debug("Handling PUT request for \"" + uriInfo.getRequestUri() + "\"");
return internalPostWithId(dupId, durable, ttl, expiration, priority, headers, uriInfo, body);
}
@POST
@Path("{id}")
public Response postWithId(@PathParam("id") String dupId, @QueryParam("durable") Boolean durable,
@QueryParam("ttl") Long ttl,
@QueryParam("expiration") Long expiration,
@QueryParam("priority") Integer priority,
@Context HttpHeaders headers, @Context UriInfo uriInfo, byte[] body)
{
HornetQRestLogger.LOGGER.debug("Handling POST request for \"" + uriInfo.getRequestUri() + "\"");
return internalPostWithId(dupId, durable, ttl, expiration, priority, headers, uriInfo, body);
}
private Response internalPostWithId(String dupId, Boolean durable, Long ttl, Long expiration, Integer priority, HttpHeaders headers, UriInfo uriInfo, byte[] body) {
String matched = uriInfo.getMatchedURIs().get(1);
UriBuilder nextBuilder = uriInfo.getBaseUriBuilder();
String nextId = generateDupId();
nextBuilder.path(matched).path(nextId);
URI next = nextBuilder.build();
boolean isDurable = defaultDurable;
if (durable != null)
{
isDurable = durable.booleanValue();
}
try
{
publish(headers, body, dupId, isDurable, ttl, expiration, priority);
}
catch (Exception e)
{
Response error = Response.serverError()
.entity("Problem posting message: " + e.getMessage())
.type("text/plain")
.build();
throw new WebApplicationException(e, error);
}
Response.ResponseBuilder builder = Response.status(201);
serviceManager.getLinkStrategy().setLinkHeader(builder, "create-next", "create-next", next.toString(), "*/*");
return builder.build();
}
public long getProducerTimeToLive()
{
return producerTimeToLive;
}
public void setProducerTimeToLive(long producerTimeToLive)
{
this.producerTimeToLive = producerTimeToLive;
}
public DestinationServiceManager getServiceManager()
{
return serviceManager;
}
public void setServiceManager(DestinationServiceManager serviceManager)
{
this.serviceManager = serviceManager;
}
public ClientSessionFactory getSessionFactory()
{
return sessionFactory;
}
public void setSessionFactory(ClientSessionFactory sessionFactory)
{
this.sessionFactory = sessionFactory;
}
public String getDestination()
{
return destination;
}
public void setDestination(String destination)
{
this.destination = destination;
}
public boolean isDefaultDurable()
{
return defaultDurable;
}
public void setDefaultDurable(boolean defaultDurable)
{
this.defaultDurable = defaultDurable;
}
public int getPoolSize()
{
return poolSize;
}
public void setPoolSize(int poolSize)
{
this.poolSize = poolSize;
}
public void init() throws Exception
{
pool = new ArrayBlockingQueue<Pooled>(poolSize);
for (int i = 0; i < poolSize; i++)
{
addPooled();
}
}
protected void addPooled()
throws HornetQException
{
ClientSession session = sessionFactory.createSession();
ClientProducer producer = session.createProducer(destination);
session.start();
pool.add(new Pooled(session, producer));
}
protected Pooled getPooled()
throws InterruptedException
{
Pooled pooled = pool.poll(1, TimeUnit.SECONDS);
if (pooled == null)
{
throw new WebApplicationException(Response.status(503).entity("Timed out waiting for available producer.").type("text/plain").build());
}
return pooled;
}
public void cleanup()
{
for (Pooled pooled : pool)
{
try
{
pooled.session.close();
}
catch (HornetQException e)
{
throw new RuntimeException(e);
}
}
}
protected ClientMessage createHornetQMessage(HttpHeaders headers, byte[] body,
boolean durable,
Long ttl,
Long expiration,
Integer priority,
ClientSession session) throws Exception
{
ClientMessage message = session.createMessage(Message.BYTES_TYPE, durable);
// HORNETQ-962
UUID uid = UUIDGenerator.getInstance().generateUUID();
message.setUserID(uid);
if (expiration != null)
{
message.setExpiration(expiration.longValue());
}
else if (ttl != null)
{
message.setExpiration(System.currentTimeMillis() + ttl.longValue());
}
else if (producerTimeToLive > 0)
{
message.setExpiration(System.currentTimeMillis() + producerTimeToLive);
}
if (priority != null)
{
byte p = priority.byteValue();
if (p >= 0 && p <=9)
{
message.setPriority(p);
}
}
HttpMessageHelper.writeHttpMessage(headers, body, message);
return message;
}
}