/*
* 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.processors.platform.compute;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.ignite.cluster.ClusterNode;
import org.apache.ignite.compute.ComputeJob;
import org.apache.ignite.compute.ComputeTaskNoResultCache;
import org.apache.ignite.internal.processors.platform.PlatformContext;
import org.apache.ignite.internal.util.typedef.F;
import org.jetbrains.annotations.Nullable;
/**
* Interop single-closure task with broadcast semantics.
*/
@ComputeTaskNoResultCache
public class PlatformBroadcastingSingleClosureTask extends PlatformAbstractTask {
/** */
private static final long serialVersionUID = 0L;
/** */
private PlatformJob job;
/**
* Constructor.
*
* @param ctx Platform context.
* @param taskPtr Task pointer.
*/
public PlatformBroadcastingSingleClosureTask(PlatformContext ctx, long taskPtr) {
super(ctx, taskPtr);
}
/** {@inheritDoc} */
@Nullable @Override public Map<? extends ComputeJob, ClusterNode> map(List<ClusterNode> subgrid,
@Nullable Object arg) {
assert job != null : "Job null-check must be performed in native platform.";
if (!F.isEmpty(subgrid)) {
Map<ComputeJob, ClusterNode> map = new HashMap<>(subgrid.size(), 1);
boolean first = true;
for (ClusterNode node : subgrid) {
if (first) {
map.put(job, node);
first = false;
}
else
map.put(ctx.createClosureJob(this, job.pointer(), job.job()), node);
}
return map;
}
else
return Collections.emptyMap();
}
/**
* @param job Job.
*/
public void job(PlatformJob job) {
this.job = job;
}
}