/*
* Copyright 2014 the original author or authors.
*
* 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 net.kuujo.vertigo.cluster.data.impl;
import net.kuujo.vertigo.cluster.data.AsyncQueue;
import net.kuujo.vertigo.cluster.data.DataException;
import org.vertx.java.core.AsyncResult;
import org.vertx.java.core.Handler;
import org.vertx.java.core.Vertx;
import org.vertx.java.core.eventbus.EventBus;
import org.vertx.java.core.eventbus.Message;
import org.vertx.java.core.impl.DefaultFutureResult;
import org.vertx.java.core.json.JsonObject;
/**
* An event bus queue implementation.
*
* @author Jordan Halterman
*
* @param <T> The queue data type.
*/
public class DefaultAsyncQueue<T> extends AsyncDataStructure implements AsyncQueue<T> {
private final EventBus eventBus;
public DefaultAsyncQueue(String address, String name, Vertx vertx) {
super(address, name, vertx);
this.eventBus = vertx.eventBus();
}
@Override
public void add(T value) {
add(value, null);
}
@Override
public void add(final T value, final Handler<AsyncResult<Boolean>> doneHandler) {
checkAddress();
JsonObject message = new JsonObject()
.putString("action", "add")
.putString("type", "queue")
.putString("name", name)
.putValue("value", value);
eventBus.sendWithTimeout(address, message, 30000, new Handler<AsyncResult<Message<JsonObject>>>() {
@Override
public void handle(final AsyncResult<Message<JsonObject>> result) {
if (result.failed()) {
resetLocalAddress(new Handler<AsyncResult<Boolean>>() {
@Override
public void handle(AsyncResult<Boolean> resetResult) {
if (resetResult.succeeded() && resetResult.result()) {
add(value, doneHandler);
} else {
new DefaultFutureResult<Boolean>(result.cause()).setHandler(doneHandler);
}
}
});
} else if (result.result().body().getString("status").equals("error")) {
new DefaultFutureResult<Boolean>(new DataException(result.result().body().getString("message"))).setHandler(doneHandler);
} else {
new DefaultFutureResult<Boolean>(result.result().body().getBoolean("result")).setHandler(doneHandler);
}
}
});
}
@Override
public void offer(T value) {
add(value, null);
}
@Override
public void offer(T value, Handler<AsyncResult<Boolean>> doneHandler) {
add(value, doneHandler);
}
@Override
public void remove(T value) {
remove(value, null);
}
@Override
public void remove(final T value, final Handler<AsyncResult<Boolean>> doneHandler) {
checkAddress();
JsonObject message = new JsonObject()
.putString("action", "remove")
.putString("type", "queue")
.putString("name", name)
.putValue("value", value);
eventBus.sendWithTimeout(address, message, 30000, new Handler<AsyncResult<Message<JsonObject>>>() {
@Override
public void handle(final AsyncResult<Message<JsonObject>> result) {
if (result.failed()) {
resetLocalAddress(new Handler<AsyncResult<Boolean>>() {
@Override
public void handle(AsyncResult<Boolean> resetResult) {
if (resetResult.succeeded() && resetResult.result()) {
remove(value, doneHandler);
} else {
new DefaultFutureResult<Boolean>(result.cause()).setHandler(doneHandler);
}
}
});
} else if (result.result().body().getString("status").equals("error")) {
new DefaultFutureResult<Boolean>(new DataException(result.result().body().getString("message"))).setHandler(doneHandler);
} else {
new DefaultFutureResult<Boolean>(result.result().body().getBoolean("result")).setHandler(doneHandler);
}
}
});
}
@Override
public void contains(final Object value, final Handler<AsyncResult<Boolean>> resultHandler) {
checkAddress();
JsonObject message = new JsonObject()
.putString("action", "contains")
.putString("type", "queue")
.putString("name", name)
.putValue("value", value);
eventBus.sendWithTimeout(address, message, 30000, new Handler<AsyncResult<Message<JsonObject>>>() {
@Override
public void handle(final AsyncResult<Message<JsonObject>> result) {
if (result.failed()) {
resetLocalAddress(new Handler<AsyncResult<Boolean>>() {
@Override
public void handle(AsyncResult<Boolean> resetResult) {
if (resetResult.succeeded() && resetResult.result()) {
contains(value, resultHandler);
} else {
new DefaultFutureResult<Boolean>(result.cause()).setHandler(resultHandler);
}
}
});
} else if (result.result().body().getString("status").equals("error")) {
new DefaultFutureResult<Boolean>(new DataException(result.result().body().getString("message"))).setHandler(resultHandler);
} else {
new DefaultFutureResult<Boolean>(result.result().body().getBoolean("result")).setHandler(resultHandler);
}
}
});
}
@Override
public void size(final Handler<AsyncResult<Integer>> resultHandler) {
checkAddress();
JsonObject message = new JsonObject()
.putString("action", "size")
.putString("type", "queue")
.putString("name", name);
eventBus.sendWithTimeout(address, message, 30000, new Handler<AsyncResult<Message<JsonObject>>>() {
@Override
public void handle(final AsyncResult<Message<JsonObject>> result) {
if (result.failed()) {
resetLocalAddress(new Handler<AsyncResult<Boolean>>() {
@Override
public void handle(AsyncResult<Boolean> resetResult) {
if (resetResult.succeeded() && resetResult.result()) {
size(resultHandler);
} else {
new DefaultFutureResult<Integer>(result.cause()).setHandler(resultHandler);
}
}
});
} else if (result.result().body().getString("status").equals("error")) {
new DefaultFutureResult<Integer>(new DataException(result.result().body().getString("message"))).setHandler(resultHandler);
} else {
new DefaultFutureResult<Integer>(result.result().body().getInteger("result")).setHandler(resultHandler);
}
}
});
}
@Override
public void isEmpty(final Handler<AsyncResult<Boolean>> resultHandler) {
checkAddress();
JsonObject message = new JsonObject()
.putString("action", "empty")
.putString("type", "queue")
.putString("name", name);
eventBus.sendWithTimeout(address, message, 30000, new Handler<AsyncResult<Message<JsonObject>>>() {
@Override
public void handle(final AsyncResult<Message<JsonObject>> result) {
if (result.failed()) {
resetLocalAddress(new Handler<AsyncResult<Boolean>>() {
@Override
public void handle(AsyncResult<Boolean> resetResult) {
if (resetResult.succeeded() && resetResult.result()) {
isEmpty(resultHandler);
} else {
new DefaultFutureResult<Boolean>(result.cause()).setHandler(resultHandler);
}
}
});
} else if (result.result().body().getString("status").equals("error")) {
new DefaultFutureResult<Boolean>(new DataException(result.result().body().getString("message"))).setHandler(resultHandler);
} else {
new DefaultFutureResult<Boolean>(result.result().body().getBoolean("result")).setHandler(resultHandler);
}
}
});
}
@Override
public void clear() {
clear(null);
}
@Override
public void clear(final Handler<AsyncResult<Void>> doneHandler) {
checkAddress();
JsonObject message = new JsonObject()
.putString("action", "clear")
.putString("type", "queue")
.putString("name", name);
eventBus.sendWithTimeout(address, message, 30000, new Handler<AsyncResult<Message<JsonObject>>>() {
@Override
public void handle(final AsyncResult<Message<JsonObject>> result) {
if (result.failed()) {
resetLocalAddress(new Handler<AsyncResult<Boolean>>() {
@Override
public void handle(AsyncResult<Boolean> resetResult) {
if (resetResult.succeeded() && resetResult.result()) {
clear(doneHandler);
} else {
new DefaultFutureResult<Void>(result.cause()).setHandler(doneHandler);
}
}
});
} else if (result.result().body().getString("status").equals("error")) {
new DefaultFutureResult<Void>(new DataException(result.result().body().getString("message"))).setHandler(doneHandler);
} else {
new DefaultFutureResult<Void>((Void) null).setHandler(doneHandler);
}
}
});
}
@Override
public void element(final Handler<AsyncResult<T>> resultHandler) {
checkAddress();
JsonObject message = new JsonObject()
.putString("action", "element")
.putString("type", "queue")
.putString("name", name);
eventBus.sendWithTimeout(address, message, 30000, new Handler<AsyncResult<Message<JsonObject>>>() {
@Override
@SuppressWarnings("unchecked")
public void handle(final AsyncResult<Message<JsonObject>> result) {
if (result.failed()) {
resetLocalAddress(new Handler<AsyncResult<Boolean>>() {
@Override
public void handle(AsyncResult<Boolean> resetResult) {
if (resetResult.succeeded() && resetResult.result()) {
element(resultHandler);
} else {
new DefaultFutureResult<T>(result.cause()).setHandler(resultHandler);
}
}
});
} else if (result.result().body().getString("status").equals("error")) {
new DefaultFutureResult<T>(new DataException(result.result().body().getString("message"))).setHandler(resultHandler);
} else {
new DefaultFutureResult<T>((T) result.result().body().getValue("result")).setHandler(resultHandler);
}
}
});
}
@Override
public void peek(final Handler<AsyncResult<T>> resultHandler) {
checkAddress();
JsonObject message = new JsonObject()
.putString("action", "peek")
.putString("type", "queue")
.putString("name", name);
eventBus.sendWithTimeout(address, message, 30000, new Handler<AsyncResult<Message<JsonObject>>>() {
@Override
@SuppressWarnings("unchecked")
public void handle(final AsyncResult<Message<JsonObject>> result) {
if (result.failed()) {
resetLocalAddress(new Handler<AsyncResult<Boolean>>() {
@Override
public void handle(AsyncResult<Boolean> resetResult) {
if (resetResult.succeeded() && resetResult.result()) {
peek(resultHandler);
} else {
new DefaultFutureResult<T>(result.cause()).setHandler(resultHandler);
}
}
});
} else if (result.result().body().getString("status").equals("error")) {
new DefaultFutureResult<T>(new DataException(result.result().body().getString("message"))).setHandler(resultHandler);
} else {
new DefaultFutureResult<T>((T) result.result().body().getValue("result")).setHandler(resultHandler);
}
}
});
}
@Override
public void poll(final Handler<AsyncResult<T>> resultHandler) {
checkAddress();
JsonObject message = new JsonObject()
.putString("action", "poll")
.putString("type", "queue")
.putString("name", name);
eventBus.sendWithTimeout(address, message, 30000, new Handler<AsyncResult<Message<JsonObject>>>() {
@Override
@SuppressWarnings("unchecked")
public void handle(final AsyncResult<Message<JsonObject>> result) {
if (result.failed()) {
resetLocalAddress(new Handler<AsyncResult<Boolean>>() {
@Override
public void handle(AsyncResult<Boolean> resetResult) {
if (resetResult.succeeded() && resetResult.result()) {
poll(resultHandler);
} else {
new DefaultFutureResult<T>(result.cause()).setHandler(resultHandler);
}
}
});
} else if (result.result().body().getString("status").equals("error")) {
new DefaultFutureResult<T>(new DataException(result.result().body().getString("message"))).setHandler(resultHandler);
} else {
new DefaultFutureResult<T>((T) result.result().body().getValue("result")).setHandler(resultHandler);
}
}
});
}
@Override
public void remove(final Handler<AsyncResult<T>> resultHandler) {
checkAddress();
JsonObject message = new JsonObject()
.putString("action", "remove")
.putString("type", "queue")
.putString("name", name);
eventBus.sendWithTimeout(address, message, 30000, new Handler<AsyncResult<Message<JsonObject>>>() {
@Override
@SuppressWarnings("unchecked")
public void handle(final AsyncResult<Message<JsonObject>> result) {
if (result.failed()) {
resetLocalAddress(new Handler<AsyncResult<Boolean>>() {
@Override
public void handle(AsyncResult<Boolean> resetResult) {
if (resetResult.succeeded() && resetResult.result()) {
remove(resultHandler);
} else {
new DefaultFutureResult<T>(result.cause()).setHandler(resultHandler);
}
}
});
} else if (result.result().body().getString("status").equals("error")) {
new DefaultFutureResult<T>(new DataException(result.result().body().getString("message"))).setHandler(resultHandler);
} else {
new DefaultFutureResult<T>((T) result.result().body().getValue("result")).setHandler(resultHandler);
}
}
});
}
}