/**
* 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.server.api.records.impl.pb;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ContainerStatus;
import org.apache.hadoop.yarn.api.records.NodeHealthStatus;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.api.records.ProtoBase;
import org.apache.hadoop.yarn.api.records.impl.pb.ApplicationIdPBImpl;
import org.apache.hadoop.yarn.api.records.impl.pb.ContainerStatusPBImpl;
import org.apache.hadoop.yarn.api.records.impl.pb.NodeHealthStatusPBImpl;
import org.apache.hadoop.yarn.api.records.impl.pb.NodeIdPBImpl;
import org.apache.hadoop.yarn.proto.YarnProtos.ApplicationIdProto;
import org.apache.hadoop.yarn.proto.YarnProtos.ContainerStatusProto;
import org.apache.hadoop.yarn.proto.YarnProtos.NodeHealthStatusProto;
import org.apache.hadoop.yarn.proto.YarnProtos.NodeIdProto;
import org.apache.hadoop.yarn.proto.YarnServerCommonProtos.NodeStatusProto;
import org.apache.hadoop.yarn.proto.YarnServerCommonProtos.NodeStatusProtoOrBuilder;
import org.apache.hadoop.yarn.server.api.records.NodeStatus;
public class NodeStatusPBImpl extends ProtoBase<NodeStatusProto> implements
NodeStatus {
NodeStatusProto proto = NodeStatusProto.getDefaultInstance();
NodeStatusProto.Builder builder = null;
boolean viaProto = false;
private NodeId nodeId = null;
private List<ContainerStatus> containers = null;
private NodeHealthStatus nodeHealthStatus = null;
private List<ApplicationId> keepAliveApplications = null;
public NodeStatusPBImpl() {
builder = NodeStatusProto.newBuilder();
}
public NodeStatusPBImpl(NodeStatusProto proto) {
this.proto = proto;
viaProto = true;
}
public synchronized NodeStatusProto getProto() {
mergeLocalToProto();
proto = viaProto ? proto : builder.build();
viaProto = true;
return proto;
}
private synchronized void mergeLocalToBuilder() {
if (this.nodeId != null) {
builder.setNodeId(convertToProtoFormat(this.nodeId));
}
if (this.containers != null) {
addContainersToProto();
}
if (this.nodeHealthStatus != null) {
builder.setNodeHealthStatus(convertToProtoFormat(this.nodeHealthStatus));
}
if (this.keepAliveApplications != null) {
addKeepAliveApplicationsToProto();
}
}
private synchronized void mergeLocalToProto() {
if (viaProto)
maybeInitBuilder();
mergeLocalToBuilder();
proto = builder.build();
viaProto = true;
}
private synchronized void maybeInitBuilder() {
if (viaProto || builder == null) {
builder = NodeStatusProto.newBuilder(proto);
}
viaProto = false;
}
private synchronized void addContainersToProto() {
maybeInitBuilder();
builder.clearContainersStatuses();
if (containers == null)
return;
Iterable<ContainerStatusProto> iterable = new Iterable<ContainerStatusProto>() {
@Override
public Iterator<ContainerStatusProto> iterator() {
return new Iterator<ContainerStatusProto>() {
Iterator<ContainerStatus> iter = containers.iterator();
@Override
public boolean hasNext() {
return iter.hasNext();
}
@Override
public ContainerStatusProto next() {
return convertToProtoFormat(iter.next());
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
};
}
};
builder.addAllContainersStatuses(iterable);
}
private synchronized void addKeepAliveApplicationsToProto() {
maybeInitBuilder();
builder.clearKeepAliveApplications();
if (keepAliveApplications == null)
return;
Iterable<ApplicationIdProto> iterable = new Iterable<ApplicationIdProto>() {
@Override
public Iterator<ApplicationIdProto> iterator() {
return new Iterator<ApplicationIdProto>() {
Iterator<ApplicationId> iter = keepAliveApplications.iterator();
@Override
public boolean hasNext() {
return iter.hasNext();
}
@Override
public ApplicationIdProto next() {
return convertToProtoFormat(iter.next());
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
};
}
};
builder.addAllKeepAliveApplications(iterable);
}
@Override
public synchronized int getResponseId() {
NodeStatusProtoOrBuilder p = viaProto ? proto : builder;
return p.getResponseId();
}
@Override
public synchronized void setResponseId(int responseId) {
maybeInitBuilder();
builder.setResponseId(responseId);
}
@Override
public synchronized NodeId getNodeId() {
NodeStatusProtoOrBuilder p = viaProto ? proto : builder;
if (this.nodeId != null) {
return this.nodeId;
}
if (!p.hasNodeId()) {
return null;
}
this.nodeId = convertFromProtoFormat(p.getNodeId());
return this.nodeId;
}
@Override
public synchronized void setNodeId(NodeId nodeId) {
maybeInitBuilder();
if (nodeId == null)
builder.clearNodeId();
this.nodeId = nodeId;
}
@Override
public synchronized List<ContainerStatus> getContainersStatuses() {
initContainers();
return this.containers;
}
@Override
public synchronized void setContainersStatuses(
List<ContainerStatus> containers) {
if (containers == null) {
builder.clearContainersStatuses();
}
this.containers = containers;
}
@Override
public synchronized List<ApplicationId> getKeepAliveApplications() {
initKeepAliveApplications();
return this.keepAliveApplications;
}
@Override
public synchronized void setKeepAliveApplications(List<ApplicationId> appIds) {
if (appIds == null) {
builder.clearKeepAliveApplications();
}
this.keepAliveApplications = appIds;
}
private synchronized void initContainers() {
if (this.containers != null) {
return;
}
NodeStatusProtoOrBuilder p = viaProto ? proto : builder;
List<ContainerStatusProto> list = p.getContainersStatusesList();
this.containers = new ArrayList<ContainerStatus>();
for (ContainerStatusProto c : list) {
this.containers.add(convertFromProtoFormat(c));
}
}
private synchronized void initKeepAliveApplications() {
if (this.keepAliveApplications != null) {
return;
}
NodeStatusProtoOrBuilder p = viaProto ? proto : builder;
List<ApplicationIdProto> list = p.getKeepAliveApplicationsList();
this.keepAliveApplications = new ArrayList<ApplicationId>();
for (ApplicationIdProto c : list) {
this.keepAliveApplications.add(convertFromProtoFormat(c));
}
}
@Override
public synchronized NodeHealthStatus getNodeHealthStatus() {
NodeStatusProtoOrBuilder p = viaProto ? proto : builder;
if (nodeHealthStatus != null) {
return nodeHealthStatus;
}
if (!p.hasNodeHealthStatus()) {
return null;
}
nodeHealthStatus = convertFromProtoFormat(p.getNodeHealthStatus());
return nodeHealthStatus;
}
@Override
public synchronized void setNodeHealthStatus(NodeHealthStatus healthStatus) {
maybeInitBuilder();
if (healthStatus == null) {
builder.clearNodeHealthStatus();
}
this.nodeHealthStatus = healthStatus;
}
private NodeIdProto convertToProtoFormat(NodeId nodeId) {
return ((NodeIdPBImpl)nodeId).getProto();
}
private NodeId convertFromProtoFormat(NodeIdProto proto) {
return new NodeIdPBImpl(proto);
}
private NodeHealthStatusProto convertToProtoFormat(
NodeHealthStatus healthStatus) {
return ((NodeHealthStatusPBImpl) healthStatus).getProto();
}
private NodeHealthStatus convertFromProtoFormat(NodeHealthStatusProto proto) {
return new NodeHealthStatusPBImpl(proto);
}
private ContainerStatusPBImpl convertFromProtoFormat(ContainerStatusProto c) {
return new ContainerStatusPBImpl(c);
}
private ContainerStatusProto convertToProtoFormat(ContainerStatus c) {
return ((ContainerStatusPBImpl)c).getProto();
}
private ApplicationIdPBImpl convertFromProtoFormat(ApplicationIdProto c) {
return new ApplicationIdPBImpl(c);
}
private ApplicationIdProto convertToProtoFormat(ApplicationId c) {
return ((ApplicationIdPBImpl)c).getProto();
}
}