/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.ignite.internal.util.nio;
import org.apache.ignite.IgniteCheckedException;
import org.apache.ignite.internal.IgniteInternalFuture;
import org.apache.ignite.internal.util.typedef.internal.S;
import org.apache.ignite.lang.IgniteInClosure;
import org.jetbrains.annotations.Nullable;
/**
* Future that delegates to some other future.
*/
public class GridNioEmbeddedFuture<R> extends GridNioFutureImpl<R> {
/** */
private static final long serialVersionUID = 0L;
/**
*
*/
public GridNioEmbeddedFuture() {
super(null);
}
/**
* Callback to notify that future is finished.
* This method must delegate to {@link #onDone(GridNioFuture, Throwable)} method.
*
* @param res Result.
*/
public final void onDone(GridNioFuture<R> res) {
onDone(res, null);
}
/**
* Callback to notify that future is finished. Note that if non-{@code null} exception is passed in
* the result value will be ignored.
*
* @param delegate Optional result.
* @param err Optional error.
*/
public void onDone(@Nullable GridNioFuture<R> delegate, @Nullable Throwable err) {
assert delegate != null || err != null;
if (err != null)
onDone(err);
else delegate.listen(new IgniteInClosure<IgniteInternalFuture<R>>() {
@Override public void apply(IgniteInternalFuture<R> t) {
try {
onDone(t.get());
}
catch (IgniteCheckedException e) {
onDone(e);
}
}
});
}
/** {@inheritDoc} */
@Override public String toString() {
return S.toString(GridNioEmbeddedFuture.class, this, super.toString());
}
}