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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.action.admin.cluster.stats;
import org.elasticsearch.action.support.nodes.BaseNodesResponse;
import org.elasticsearch.cluster.ClusterName;
import org.elasticsearch.cluster.health.ClusterHealthStatus;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentBuilderString;
import org.elasticsearch.common.xcontent.XContentFactory;
import java.io.IOException;
import java.util.Iterator;
import java.util.Locale;
import java.util.Map;
/**
*
*/
public class ClusterStatsResponse extends BaseNodesResponse<ClusterStatsNodeResponse> implements ToXContent {
ClusterStatsNodes nodesStats;
ClusterStatsIndices indicesStats;
String clusterUUID;
ClusterHealthStatus status;
long timestamp;
ClusterStatsResponse() {
}
public ClusterStatsResponse(long timestamp, ClusterName clusterName, String clusterUUID, ClusterStatsNodeResponse[] nodes) {
super(clusterName, null);
this.timestamp = timestamp;
this.clusterUUID = clusterUUID;
nodesStats = new ClusterStatsNodes(nodes);
indicesStats = new ClusterStatsIndices(nodes);
for (ClusterStatsNodeResponse response : nodes) {
// only the master node populates the status
if (response.clusterStatus() != null) {
status = response.clusterStatus();
break;
}
}
}
public long getTimestamp() {
return this.timestamp;
}
public ClusterHealthStatus getStatus() {
return this.status;
}
public ClusterStatsNodes getNodesStats() {
return nodesStats;
}
public ClusterStatsIndices getIndicesStats() {
return indicesStats;
}
@Override
public ClusterStatsNodeResponse[] getNodes() {
throw new UnsupportedOperationException();
}
@Override
public Map<String, ClusterStatsNodeResponse> getNodesMap() {
throw new UnsupportedOperationException();
}
@Override
public ClusterStatsNodeResponse getAt(int position) {
throw new UnsupportedOperationException();
}
@Override
public Iterator<ClusterStatsNodeResponse> iterator() {
throw new UnsupportedOperationException();
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
timestamp = in.readVLong();
status = null;
if (in.readBoolean()) {
// it may be that the master switched on us while doing the operation. In this case the status may be null.
status = ClusterHealthStatus.fromValue(in.readByte());
}
clusterUUID = in.readString();
nodesStats = ClusterStatsNodes.readNodeStats(in);
indicesStats = ClusterStatsIndices.readIndicesStats(in);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeVLong(timestamp);
if (status == null) {
out.writeBoolean(false);
} else {
out.writeBoolean(true);
out.writeByte(status.value());
}
out.writeString(clusterUUID);
nodesStats.writeTo(out);
indicesStats.writeTo(out);
}
static final class Fields {
static final XContentBuilderString NODES = new XContentBuilderString("nodes");
static final XContentBuilderString INDICES = new XContentBuilderString("indices");
static final XContentBuilderString UUID = new XContentBuilderString("uuid");
static final XContentBuilderString CLUSTER_NAME = new XContentBuilderString("cluster_name");
static final XContentBuilderString STATUS = new XContentBuilderString("status");
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.field("timestamp", getTimestamp());
builder.field(Fields.CLUSTER_NAME, getClusterName().value());
if (params.paramAsBoolean("output_uuid", false)) {
builder.field(Fields.UUID, clusterUUID);
}
if (status != null) {
builder.field(Fields.STATUS, status.name().toLowerCase(Locale.ROOT));
}
builder.startObject(Fields.INDICES);
indicesStats.toXContent(builder, params);
builder.endObject();
builder.startObject(Fields.NODES);
nodesStats.toXContent(builder, params);
builder.endObject();
return builder;
}
@Override
public String toString() {
try {
XContentBuilder builder = XContentFactory.jsonBuilder().prettyPrint();
builder.startObject();
toXContent(builder, EMPTY_PARAMS);
builder.endObject();
return builder.string();
} catch (IOException e) {
return "{ \"error\" : \"" + e.getMessage() + "\"}";
}
}
}
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