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Elasticsearch subproject :server
package org.elasticsearch.search.profile;
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import org.elasticsearch.common.xcontent.ToXContent.Params;
import org.elasticsearch.common.xcontent.ToXContentFragment;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.search.profile.aggregation.AggregationProfileShardResult;
import org.elasticsearch.search.profile.aggregation.AggregationProfiler;
import org.elasticsearch.search.profile.query.QueryProfileShardResult;
import org.elasticsearch.search.profile.query.QueryProfiler;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TreeSet;
import static org.elasticsearch.common.xcontent.XContentParserUtils.ensureExpectedToken;
/**
* A container class to hold all the profile results across all shards. Internally
* holds a map of shard ID -> Profiled results
*/
public final class SearchProfileShardResults implements Writeable, ToXContentFragment {
private static final String SEARCHES_FIELD = "searches";
private static final String ID_FIELD = "id";
private static final String SHARDS_FIELD = "shards";
public static final String PROFILE_FIELD = "profile";
private Map shardResults;
public SearchProfileShardResults(Map shardResults) {
this.shardResults = Collections.unmodifiableMap(shardResults);
}
public SearchProfileShardResults(StreamInput in) throws IOException {
int size = in.readInt();
shardResults = new HashMap<>(size);
for (int i = 0; i < size; i++) {
String key = in.readString();
ProfileShardResult shardResult = new ProfileShardResult(in);
shardResults.put(key, shardResult);
}
shardResults = Collections.unmodifiableMap(shardResults);
}
public Map getShardResults() {
return this.shardResults;
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeInt(shardResults.size());
for (Map.Entry entry : shardResults.entrySet()) {
out.writeString(entry.getKey());
entry.getValue().writeTo(out);
}
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(PROFILE_FIELD).startArray(SHARDS_FIELD);
// shardResults is a map, but we print entries in a json array, which is ordered.
// we sort the keys of the map, so that toXContent always prints out the same array order
TreeSet sortedKeys = new TreeSet<>(shardResults.keySet());
for (String key : sortedKeys) {
builder.startObject();
builder.field(ID_FIELD, key);
builder.startArray(SEARCHES_FIELD);
ProfileShardResult profileShardResult = shardResults.get(key);
for (QueryProfileShardResult result : profileShardResult.getQueryProfileResults()) {
result.toXContent(builder, params);
}
builder.endArray();
profileShardResult.getAggregationProfileResults().toXContent(builder, params);
builder.endObject();
}
builder.endArray().endObject();
return builder;
}
public static SearchProfileShardResults fromXContent(XContentParser parser) throws IOException {
XContentParser.Token token = parser.currentToken();
ensureExpectedToken(XContentParser.Token.START_OBJECT, token, parser);
Map searchProfileResults = new HashMap<>();
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.START_ARRAY) {
if (SHARDS_FIELD.equals(parser.currentName())) {
while ((token = parser.nextToken()) != XContentParser.Token.END_ARRAY) {
parseSearchProfileResultsEntry(parser, searchProfileResults);
}
} else {
parser.skipChildren();
}
} else if (token == XContentParser.Token.START_OBJECT) {
parser.skipChildren();
}
}
return new SearchProfileShardResults(searchProfileResults);
}
private static void parseSearchProfileResultsEntry(XContentParser parser,
Map searchProfileResults) throws IOException {
XContentParser.Token token = parser.currentToken();
ensureExpectedToken(XContentParser.Token.START_OBJECT, token, parser);
List queryProfileResults = new ArrayList<>();
AggregationProfileShardResult aggProfileShardResult = null;
String id = null;
String currentFieldName = null;
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token.isValue()) {
if (ID_FIELD.equals(currentFieldName)) {
id = parser.text();
} else {
parser.skipChildren();
}
} else if (token == XContentParser.Token.START_ARRAY) {
if (SEARCHES_FIELD.equals(currentFieldName)) {
while ((token = parser.nextToken()) != XContentParser.Token.END_ARRAY) {
queryProfileResults.add(QueryProfileShardResult.fromXContent(parser));
}
} else if (AggregationProfileShardResult.AGGREGATIONS.equals(currentFieldName)) {
aggProfileShardResult = AggregationProfileShardResult.fromXContent(parser);
} else {
parser.skipChildren();
}
} else {
parser.skipChildren();
}
}
searchProfileResults.put(id, new ProfileShardResult(queryProfileResults, aggProfileShardResult));
}
/**
* Helper method to convert Profiler into InternalProfileShardResults, which
* can be serialized to other nodes, emitted as JSON, etc.
*
* @param profilers
* The {@link Profilers} to convert into results
* @return A {@link ProfileShardResult} representing the results for this
* shard
*/
public static ProfileShardResult buildShardResults(Profilers profilers) {
List queryProfilers = profilers.getQueryProfilers();
AggregationProfiler aggProfiler = profilers.getAggregationProfiler();
List queryResults = new ArrayList<>(queryProfilers.size());
for (QueryProfiler queryProfiler : queryProfilers) {
QueryProfileShardResult result = new QueryProfileShardResult(queryProfiler.getTree(), queryProfiler.getRewriteTime(),
queryProfiler.getCollector());
queryResults.add(result);
}
AggregationProfileShardResult aggResults = new AggregationProfileShardResult(aggProfiler.getTree());
return new ProfileShardResult(queryResults, aggResults);
}
}