/**
* 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.records.impl.pb;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.hadoop.yarn.api.records.AMResponse;
import org.apache.hadoop.yarn.api.records.Container;
import org.apache.hadoop.yarn.api.records.ContainerStatus;
import org.apache.hadoop.yarn.api.records.NodeReport;
import org.apache.hadoop.yarn.api.records.ProtoBase;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.proto.YarnProtos.AMResponseProto;
import org.apache.hadoop.yarn.proto.YarnProtos.AMResponseProtoOrBuilder;
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.ResourceProto;
public class AMResponsePBImpl extends ProtoBase<AMResponseProto> implements AMResponse {
AMResponseProto proto = AMResponseProto.getDefaultInstance();
AMResponseProto.Builder builder = null;
boolean viaProto = false;
Resource limit;
private List<Container> allocatedContainers = null;
private List<ContainerStatus> completedContainersStatuses = null;
// private boolean hasLocalContainerList = false;
private List<NodeReport> updatedNodes = null;
public AMResponsePBImpl() {
builder = AMResponseProto.newBuilder();
}
public AMResponsePBImpl(AMResponseProto proto) {
this.proto = proto;
viaProto = true;
}
public synchronized AMResponseProto getProto() {
mergeLocalToProto();
proto = viaProto ? proto : builder.build();
viaProto = true;
return proto;
}
private synchronized void mergeLocalToBuilder() {
if (this.allocatedContainers != null) {
builder.clearAllocatedContainers();
Iterable<ContainerProto> iterable =
getProtoIterable(this.allocatedContainers);
builder.addAllAllocatedContainers(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));
}
}
private synchronized void mergeLocalToProto() {
if (viaProto)
maybeInitBuilder();
mergeLocalToBuilder();
proto = builder.build();
viaProto = true;
}
private synchronized void maybeInitBuilder() {
if (viaProto || builder == null) {
builder = AMResponseProto.newBuilder(proto);
}
viaProto = false;
}
@Override
public synchronized boolean getReboot() {
AMResponseProtoOrBuilder p = viaProto ? proto : builder;
return (p.getReboot());
}
@Override
public synchronized void setReboot(boolean reboot) {
maybeInitBuilder();
builder.setReboot((reboot));
}
@Override
public synchronized int getResponseId() {
AMResponseProtoOrBuilder 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;
}
AMResponseProtoOrBuilder 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;
}
//Once this is called. updatedNodes will never be null - until a getProto is called.
private synchronized void initLocalNewNodeReportList() {
if (this.updatedNodes != null) {
return;
}
AMResponseProtoOrBuilder p = viaProto ? proto : builder;
List<NodeReportProto> list = p.getUpdatedNodesList();
updatedNodes = new ArrayList<NodeReport>(list.size());
for (NodeReportProto n : list) {
updatedNodes.add(convertFromProtoFormat(n));
}
}
@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;
}
//Once this is called. containerList will never be null - until a getProto is called.
private synchronized void initLocalNewContainerList() {
if (this.allocatedContainers != null) {
return;
}
AMResponseProtoOrBuilder p = viaProto ? proto : builder;
List<ContainerProto> list = p.getAllocatedContainersList();
allocatedContainers = new ArrayList<Container>();
for (ContainerProto c : list) {
allocatedContainers.add(convertFromProtoFormat(c));
}
}
@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);
}
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<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();
}
};
}
};
}
//// Finished containers
@Override
public synchronized List<ContainerStatus> getCompletedContainersStatuses() {
initLocalFinishedContainerList();
return this.completedContainersStatuses;
}
//Once this is called. containerList will never be null - untill a getProto is called.
private synchronized void initLocalFinishedContainerList() {
if (this.completedContainersStatuses != null) {
return;
}
AMResponseProtoOrBuilder p = viaProto ? proto : builder;
List<ContainerStatusProto> list = p.getCompletedContainerStatusesList();
completedContainersStatuses = new ArrayList<ContainerStatus>();
for (ContainerStatusProto c : list) {
completedContainersStatuses.add(convertFromProtoFormat(c));
}
}
@Override
public synchronized void setCompletedContainersStatuses(
final List<ContainerStatus> containers) {
if (containers == null)
return;
initLocalFinishedContainerList();
completedContainersStatuses.addAll(containers);
}
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();
}
}