org.jsmpp.session.BindRequestReceiver Maven / Gradle / Ivy
/*
* 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.jsmpp.session;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import org.jsmpp.bean.Bind;
/**
* @author uudashr
*
*/
class BindRequestReceiver {
private final Lock lock = new ReentrantLock();
private final Condition requestCondition = lock.newCondition();
private final ServerResponseHandler responseHandler;
private BindRequest request;
private boolean alreadyWaitForRequest;
public BindRequestReceiver(ServerResponseHandler responseHandler) {
this.responseHandler = responseHandler;
}
/**
* Wait until the bind request received for specified timeout.
*
* @param timeout is the timeout.
* @return the {@link BindRequest}.
* @throws IllegalStateException if this method already called before.
* @throws TimeoutException if the timeout has been reach.
*/
BindRequest waitForRequest(long timeout) throws IllegalStateException, TimeoutException {
lock.lock();
try {
if (alreadyWaitForRequest) {
throw new IllegalStateException("waitForRequest(long) method already invoked");
} else if (request == null) {
try {
requestCondition.await(timeout, TimeUnit.MILLISECONDS);
} catch (InterruptedException e) { }
}
if (request != null) {
return request;
} else {
throw new TimeoutException("Wating for bind request take time too long");
}
} finally {
alreadyWaitForRequest = true;
lock.unlock();
}
}
/**
* Notify that the bind has accepted.
*
* @param bindParameter is the {@link Bind} command.
* @throws IllegalStateException if this method already called before.
*/
void notifyAcceptBind(Bind bindParameter) throws IllegalStateException {
lock.lock();
try {
if (request == null) {
request = new BindRequest(bindParameter, responseHandler);
requestCondition.signal();
} else {
throw new IllegalStateException("Already waiting for acceptance bind");
}
} finally {
lock.unlock();
}
}
}