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/*
* 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.tensorflow.core;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import org.apache.ignite.tensorflow.core.longrunning.task.util.LongRunningProcessStatus;
/**
* Process manager wrapper that allows to define how one type of process specification should be transformed into
* another type of process specification delegate working with and delegate all operations to this delegate.
*
* @param <T> Type of process specification delegate working with.
* @param <R> Type of accepted process specifications.
*/
public abstract class ProcessManagerWrapper<T, R> implements ProcessManager<R> {
/** Delegate. */
private final ProcessManager<T> delegate;
/**
* Constructs a new instance of process manager wrapper.
*
* @param delegate Delegate.
*/
public ProcessManagerWrapper(ProcessManager<T> delegate) {
assert delegate != null : "Delegate should not be null";
this.delegate = delegate;
}
/**
* Transforms accepted process specification into process specification delegate working with.
*
* @param spec Accepted process specification.
* @return Process specification delegate working with.
*/
protected abstract T transformSpecification(R spec);
/** {@inheritDoc} */
@Override public Map<UUID, List<UUID>> start(List<R> specifications) {
List<T> transformedSpecifications = new ArrayList<>();
for (R spec : specifications)
transformedSpecifications.add(transformSpecification(spec));
return delegate.start(transformedSpecifications);
}
/** {@inheritDoc} */
@Override public Map<UUID, List<LongRunningProcessStatus>> ping(Map<UUID, List<UUID>> procIds) {
return delegate.ping(procIds);
}
/** {@inheritDoc} */
@Override public Map<UUID, List<LongRunningProcessStatus>> stop(Map<UUID, List<UUID>> procIds, boolean clear) {
return delegate.stop(procIds, clear);
}
/** {@inheritDoc} */
@Override public Map<UUID, List<LongRunningProcessStatus>> clear(Map<UUID, List<UUID>> procIds) {
return delegate.clear(procIds);
}
}