125 lines
4.1 KiB
Java
125 lines
4.1 KiB
Java
/*
|
||
* The MIT License (MIT)
|
||
*
|
||
* Copyright © 2020 xrv <xrg@live.com>
|
||
*
|
||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
* of this software and associated documentation files (the "Software"), to deal
|
||
* in the Software without restriction, including without limitation the rights
|
||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
* copies of the Software, and to permit persons to whom the Software is
|
||
* furnished to do so, subject to the following conditions:
|
||
*
|
||
* The above copyright notice and this permission notice shall be included in
|
||
* all copies or substantial portions of the Software.
|
||
*
|
||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
* THE SOFTWARE.
|
||
*/
|
||
|
||
package io.github.ehlxr.did.client;
|
||
|
||
import io.github.ehlxr.did.SdkProto;
|
||
import io.github.ehlxr.did.common.Try;
|
||
|
||
import java.util.concurrent.CountDownLatch;
|
||
import java.util.concurrent.Semaphore;
|
||
import java.util.concurrent.TimeUnit;
|
||
import java.util.concurrent.atomic.AtomicBoolean;
|
||
|
||
/**
|
||
* @author ehlxr
|
||
*/
|
||
public class ResponseFuture {
|
||
private final long timeoutMillis;
|
||
private final Semaphore semaphore;
|
||
private final InvokeCallback invokeCallback;
|
||
private final AtomicBoolean executeCallbackOnlyOnce = new AtomicBoolean(false);
|
||
private final AtomicBoolean semaphoreReleaseOnlyOnce = new AtomicBoolean(false);
|
||
private final CountDownLatch countDownLatch = new CountDownLatch(1);
|
||
|
||
private volatile Throwable cause;
|
||
private volatile SdkProto sdkProto;
|
||
|
||
public ResponseFuture(long timeoutMillis, InvokeCallback invokeCallback, Semaphore semaphore) {
|
||
this.timeoutMillis = timeoutMillis;
|
||
this.invokeCallback = invokeCallback;
|
||
this.semaphore = semaphore;
|
||
}
|
||
|
||
/**
|
||
* 流量控制时，释放获取的信号量
|
||
*/
|
||
public void release() {
|
||
if (this.semaphore != null) {
|
||
if (semaphoreReleaseOnlyOnce.compareAndSet(false, true)) {
|
||
this.semaphore.release();
|
||
}
|
||
}
|
||
}
|
||
|
||
public void executeInvokeCallback() {
|
||
if (invokeCallback != null) {
|
||
if (executeCallbackOnlyOnce.compareAndSet(false, true)) {
|
||
invokeCallback.operationComplete(this);
|
||
}
|
||
}
|
||
}
|
||
|
||
public SdkProto waitResponse(final long timeoutMillis) {
|
||
Try.of(() -> {
|
||
if (!this.countDownLatch.await(timeoutMillis, TimeUnit.MILLISECONDS)) {
|
||
setCause(new RuntimeException("timeout after wait " + timeoutMillis));
|
||
}
|
||
}).trap(this::setCause).run();
|
||
return this.sdkProto;
|
||
}
|
||
|
||
/**
|
||
* 同步请求时，释放阻塞的CountDown
|
||
*/
|
||
public void putResponse(SdkProto sdkProto) {
|
||
this.sdkProto = sdkProto;
|
||
this.countDownLatch.countDown();
|
||
}
|
||
|
||
public InvokeCallback getInvokeCallback() {
|
||
return invokeCallback;
|
||
}
|
||
|
||
public SdkProto getSdkProto() {
|
||
return sdkProto;
|
||
}
|
||
|
||
public void setSdkProto(SdkProto sdkProto) {
|
||
this.sdkProto = sdkProto;
|
||
}
|
||
|
||
public Throwable getCause() {
|
||
return cause;
|
||
}
|
||
|
||
public void setCause(Throwable cause) {
|
||
this.cause = cause;
|
||
}
|
||
|
||
@Override
|
||
public String toString() {
|
||
return "ResponseFuture{" +
|
||
", timeoutMillis=" + timeoutMillis +
|
||
", semaphore=" + semaphore +
|
||
", invokeCallback=" + invokeCallback +
|
||
", executeCallbackOnlyOnce=" + executeCallbackOnlyOnce +
|
||
", semaphoreReleaseOnlyOnce=" + semaphoreReleaseOnlyOnce +
|
||
", countDownLatch=" + countDownLatch +
|
||
", cause=" + cause +
|
||
", sdkProto=" + sdkProto +
|
||
'}';
|
||
}
|
||
}
|