/*
* Copyright 2000-2012 JetBrains s.r.o.
*
* 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 com.intellij.concurrency;
/**
* Author: dmitrylomov
*/
public abstract class DoWhile {
private AsyncFutureResult<Boolean> myResult;
private SameThreadExecutorWithTrampoline myExecutor;
public DoWhile() {
}
public AsyncFutureResult<Boolean> getResult() {
if (myResult == null) {
myExecutor = new SameThreadExecutorWithTrampoline();
myResult = AsyncFutureFactory.getInstance().createAsyncFutureResult();
body().addConsumer(myExecutor, new MyConsumer());
}
return myResult;
}
protected abstract AsyncFuture<Boolean> body();
protected abstract boolean condition();
private class MyConsumer extends DefaultResultConsumer<Boolean> {
public MyConsumer() {
super(DoWhile.this.myResult);
}
@Override
public void onSuccess(Boolean value) {
if (!value.booleanValue()) {
myResult.set(false);
}
else {
if(!condition()) {
myResult.set(true);
}
else {
body().addConsumer(myExecutor, this);
}
}
}
}
}