/**
* 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.hadoop.yarn.api.protocolrecords.impl.pb;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse;
import org.apache.hadoop.yarn.api.records.AMCommand;
import org.apache.hadoop.yarn.api.records.Container;
import org.apache.hadoop.yarn.api.records.ContainerStatus;
import org.apache.hadoop.yarn.api.records.NMToken;
import org.apache.hadoop.yarn.api.records.NodeReport;
import org.apache.hadoop.yarn.api.records.PreemptionMessage;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.api.records.impl.pb.ContainerPBImpl;
import org.apache.hadoop.yarn.api.records.impl.pb.ContainerStatusPBImpl;
import org.apache.hadoop.yarn.api.records.impl.pb.NMTokenPBImpl;
import org.apache.hadoop.yarn.api.records.impl.pb.NodeReportPBImpl;
import org.apache.hadoop.yarn.api.records.impl.pb.PreemptionMessagePBImpl;
import org.apache.hadoop.yarn.api.records.impl.pb.ProtoUtils;
import org.apache.hadoop.yarn.api.records.impl.pb.ResourcePBImpl;
import org.apache.hadoop.yarn.proto.YarnProtos.ContainerProto;
import org.apache.hadoop.yarn.proto.YarnProtos.ContainerStatusProto;
import org.apache.hadoop.yarn.proto.YarnProtos.NodeReportProto;
import org.apache.hadoop.yarn.proto.YarnProtos.PreemptionMessageProto;
import org.apache.hadoop.yarn.proto.YarnProtos.ResourceProto;
import org.apache.hadoop.yarn.proto.YarnServiceProtos.AllocateResponseProto;
import org.apache.hadoop.yarn.proto.YarnServiceProtos.AllocateResponseProtoOrBuilder;
import org.apache.hadoop.yarn.proto.YarnServiceProtos.NMTokenProto;
import com.google.protobuf.TextFormat;
@Private
@Unstable
public class AllocateResponsePBImpl extends AllocateResponse {
AllocateResponseProto proto = AllocateResponseProto.getDefaultInstance();
AllocateResponseProto.Builder builder = null;
boolean viaProto = false;
Resource limit;
private List<Container> allocatedContainers = null;
private List<NMToken> nmTokens = null;
private List<ContainerStatus> completedContainersStatuses = null;
private List<NodeReport> updatedNodes = null;
private PreemptionMessage preempt;
public AllocateResponsePBImpl() {
builder = AllocateResponseProto.newBuilder();
}
public AllocateResponsePBImpl(AllocateResponseProto proto) {
this.proto = proto;
viaProto = true;
}
public synchronized AllocateResponseProto getProto() {
mergeLocalToProto();
proto = viaProto ? proto : builder.build();
viaProto = true;
return proto;
}
@Override
public int hashCode() {
return getProto().hashCode();
}
@Override
public boolean equals(Object other) {
if (other == null)
return false;
if (other.getClass().isAssignableFrom(this.getClass())) {
return this.getProto().equals(this.getClass().cast(other).getProto());
}
return false;
}
@Override
public String toString() {
return TextFormat.shortDebugString(getProto());
}
private synchronized void mergeLocalToBuilder() {
if (this.allocatedContainers != null) {
builder.clearAllocatedContainers();
Iterable<ContainerProto> iterable =
getProtoIterable(this.allocatedContainers);
builder.addAllAllocatedContainers(iterable);
}
if (nmTokens != null) {
builder.clearNmTokens();
Iterable<NMTokenProto> iterable = getTokenProtoIterable(nmTokens);
builder.addAllNmTokens(iterable);
}
if (this.completedContainersStatuses != null) {
builder.clearCompletedContainerStatuses();
Iterable<ContainerStatusProto> iterable =
getContainerStatusProtoIterable(this.completedContainersStatuses);
builder.addAllCompletedContainerStatuses(iterable);
}
if (this.updatedNodes != null) {
builder.clearUpdatedNodes();
Iterable<NodeReportProto> iterable =
getNodeReportProtoIterable(this.updatedNodes);
builder.addAllUpdatedNodes(iterable);
}
if (this.limit != null) {
builder.setLimit(convertToProtoFormat(this.limit));
}
if (this.preempt != null) {
builder.setPreempt(convertToProtoFormat(this.preempt));
}
}
private synchronized void mergeLocalToProto() {
if (viaProto)
maybeInitBuilder();
mergeLocalToBuilder();
proto = builder.build();
viaProto = true;
}
private synchronized void maybeInitBuilder() {
if (viaProto || builder == null) {
builder = AllocateResponseProto.newBuilder(proto);
}
viaProto = false;
}
@Override
public synchronized AMCommand getAMCommand() {
AllocateResponseProtoOrBuilder p = viaProto ? proto : builder;
if (!p.hasAMCommand()) {
return null;
}
return ProtoUtils.convertFromProtoFormat(p.getAMCommand());
}
@Override
public synchronized void setAMCommand(AMCommand command) {
maybeInitBuilder();
if (command == null) {
builder.clearAMCommand();
return;
}
builder.setAMCommand(ProtoUtils.convertToProtoFormat(command));
}
@Override
public synchronized int getResponseId() {
AllocateResponseProtoOrBuilder p = viaProto ? proto : builder;
return (p.getResponseId());
}
@Override
public synchronized void setResponseId(int responseId) {
maybeInitBuilder();
builder.setResponseId((responseId));
}
@Override
public synchronized Resource getAvailableResources() {
if (this.limit != null) {
return this.limit;
}
AllocateResponseProtoOrBuilder p = viaProto ? proto : builder;
if (!p.hasLimit()) {
return null;
}
this.limit = convertFromProtoFormat(p.getLimit());
return this.limit;
}
@Override
public synchronized void setAvailableResources(Resource limit) {
maybeInitBuilder();
if (limit == null)
builder.clearLimit();
this.limit = limit;
}
@Override
public synchronized List<NodeReport> getUpdatedNodes() {
initLocalNewNodeReportList();
return this.updatedNodes;
}
@Override
public synchronized void setUpdatedNodes(
final List<NodeReport> updatedNodes) {
if (updatedNodes == null) {
this.updatedNodes.clear();
return;
}
this.updatedNodes = new ArrayList<NodeReport>(updatedNodes.size());
this.updatedNodes.addAll(updatedNodes);
}
@Override
public synchronized List<Container> getAllocatedContainers() {
initLocalNewContainerList();
return this.allocatedContainers;
}
@Override
public synchronized void setAllocatedContainers(
final List<Container> containers) {
if (containers == null)
return;
// this looks like a bug because it results in append and not set
initLocalNewContainerList();
allocatedContainers.addAll(containers);
}
//// Finished containers
@Override
public synchronized List<ContainerStatus> getCompletedContainersStatuses() {
initLocalFinishedContainerList();
return this.completedContainersStatuses;
}
@Override
public synchronized void setCompletedContainersStatuses(
final List<ContainerStatus> containers) {
if (containers == null)
return;
initLocalFinishedContainerList();
completedContainersStatuses.addAll(containers);
}
@Override
public synchronized void setNMTokens(List<NMToken> nmTokens) {
if (nmTokens == null || nmTokens.isEmpty()) {
if (this.nmTokens != null) {
this.nmTokens.clear();
}
builder.clearNmTokens();
return;
}
// Implementing it as an append rather than set for consistency
initLocalNewNMTokenList();
this.nmTokens.addAll(nmTokens);
}
@Override
public synchronized List<NMToken> getNMTokens() {
initLocalNewNMTokenList();
return nmTokens;
}
@Override
public synchronized int getNumClusterNodes() {
AllocateResponseProtoOrBuilder p = viaProto ? proto : builder;
return p.getNumClusterNodes();
}
@Override
public synchronized void setNumClusterNodes(int numNodes) {
maybeInitBuilder();
builder.setNumClusterNodes(numNodes);
}
@Override
public synchronized PreemptionMessage getPreemptionMessage() {
AllocateResponseProtoOrBuilder p = viaProto ? proto : builder;
if (this.preempt != null) {
return this.preempt;
}
if (!p.hasPreempt()) {
return null;
}
this.preempt = convertFromProtoFormat(p.getPreempt());
return this.preempt;
}
@Override
public synchronized void setPreemptionMessage(PreemptionMessage preempt) {
maybeInitBuilder();
if (null == preempt) {
builder.clearPreempt();
}
this.preempt = preempt;
}
// Once this is called. updatedNodes will never be null - until a getProto is
// called.
private synchronized void initLocalNewNodeReportList() {
if (this.updatedNodes != null) {
return;
}
AllocateResponseProtoOrBuilder p = viaProto ? proto : builder;
List<NodeReportProto> list = p.getUpdatedNodesList();
updatedNodes = new ArrayList<NodeReport>(list.size());
for (NodeReportProto n : list) {
updatedNodes.add(convertFromProtoFormat(n));
}
}
// Once this is called. containerList will never be null - until a getProto
// is called.
private synchronized void initLocalNewContainerList() {
if (this.allocatedContainers != null) {
return;
}
AllocateResponseProtoOrBuilder p = viaProto ? proto : builder;
List<ContainerProto> list = p.getAllocatedContainersList();
allocatedContainers = new ArrayList<Container>();
for (ContainerProto c : list) {
allocatedContainers.add(convertFromProtoFormat(c));
}
}
private synchronized void initLocalNewNMTokenList() {
if (nmTokens != null) {
return;
}
AllocateResponseProtoOrBuilder p = viaProto ? proto : builder;
List<NMTokenProto> list = p.getNmTokensList();
nmTokens = new ArrayList<NMToken>();
for (NMTokenProto t : list) {
nmTokens.add(convertFromProtoFormat(t));
}
}
private synchronized Iterable<ContainerProto> getProtoIterable(
final List<Container> newContainersList) {
maybeInitBuilder();
return new Iterable<ContainerProto>() {
@Override
public synchronized Iterator<ContainerProto> iterator() {
return new Iterator<ContainerProto>() {
Iterator<Container> iter = newContainersList.iterator();
@Override
public synchronized boolean hasNext() {
return iter.hasNext();
}
@Override
public synchronized ContainerProto next() {
return convertToProtoFormat(iter.next());
}
@Override
public synchronized void remove() {
throw new UnsupportedOperationException();
}
};
}
};
}
private synchronized Iterable<NMTokenProto> getTokenProtoIterable(
final List<NMToken> nmTokenList) {
maybeInitBuilder();
return new Iterable<NMTokenProto>() {
@Override
public synchronized Iterator<NMTokenProto> iterator() {
return new Iterator<NMTokenProto>() {
Iterator<NMToken> iter = nmTokenList.iterator();
@Override
public boolean hasNext() {
return iter.hasNext();
}
@Override
public NMTokenProto next() {
return convertToProtoFormat(iter.next());
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
};
}
};
}
private synchronized Iterable<ContainerStatusProto>
getContainerStatusProtoIterable(
final List<ContainerStatus> newContainersList) {
maybeInitBuilder();
return new Iterable<ContainerStatusProto>() {
@Override
public synchronized Iterator<ContainerStatusProto> iterator() {
return new Iterator<ContainerStatusProto>() {
Iterator<ContainerStatus> iter = newContainersList.iterator();
@Override
public synchronized boolean hasNext() {
return iter.hasNext();
}
@Override
public synchronized ContainerStatusProto next() {
return convertToProtoFormat(iter.next());
}
@Override
public synchronized void remove() {
throw new UnsupportedOperationException();
}
};
}
};
}
private synchronized Iterable<NodeReportProto>
getNodeReportProtoIterable(
final List<NodeReport> newNodeReportsList) {
maybeInitBuilder();
return new Iterable<NodeReportProto>() {
@Override
public synchronized Iterator<NodeReportProto> iterator() {
return new Iterator<NodeReportProto>() {
Iterator<NodeReport> iter = newNodeReportsList.iterator();
@Override
public synchronized boolean hasNext() {
return iter.hasNext();
}
@Override
public synchronized NodeReportProto next() {
return convertToProtoFormat(iter.next());
}
@Override
public synchronized void remove() {
throw new UnsupportedOperationException();
}
};
}
};
}
// Once this is called. containerList will never be null - until a getProto
// is called.
private synchronized void initLocalFinishedContainerList() {
if (this.completedContainersStatuses != null) {
return;
}
AllocateResponseProtoOrBuilder p = viaProto ? proto : builder;
List<ContainerStatusProto> list = p.getCompletedContainerStatusesList();
completedContainersStatuses = new ArrayList<ContainerStatus>();
for (ContainerStatusProto c : list) {
completedContainersStatuses.add(convertFromProtoFormat(c));
}
}
private synchronized NodeReportPBImpl convertFromProtoFormat(
NodeReportProto p) {
return new NodeReportPBImpl(p);
}
private synchronized NodeReportProto convertToProtoFormat(NodeReport t) {
return ((NodeReportPBImpl)t).getProto();
}
private synchronized ContainerPBImpl convertFromProtoFormat(
ContainerProto p) {
return new ContainerPBImpl(p);
}
private synchronized ContainerProto convertToProtoFormat(Container t) {
return ((ContainerPBImpl)t).getProto();
}
private synchronized ContainerStatusPBImpl convertFromProtoFormat(
ContainerStatusProto p) {
return new ContainerStatusPBImpl(p);
}
private synchronized ContainerStatusProto convertToProtoFormat(
ContainerStatus t) {
return ((ContainerStatusPBImpl)t).getProto();
}
private synchronized ResourcePBImpl convertFromProtoFormat(ResourceProto p) {
return new ResourcePBImpl(p);
}
private synchronized ResourceProto convertToProtoFormat(Resource r) {
return ((ResourcePBImpl) r).getProto();
}
private synchronized PreemptionMessagePBImpl convertFromProtoFormat(PreemptionMessageProto p) {
return new PreemptionMessagePBImpl(p);
}
private synchronized PreemptionMessageProto convertToProtoFormat(PreemptionMessage r) {
return ((PreemptionMessagePBImpl)r).getProto();
}
private synchronized NMTokenProto convertToProtoFormat(NMToken token) {
return ((NMTokenPBImpl)token).getProto();
}
private synchronized NMToken convertFromProtoFormat(NMTokenProto proto) {
return new NMTokenPBImpl(proto);
}
}