org.elasticsearch.search.profile.SearchProfileShardResults Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of elasticsearch Show documentation
Show all versions of elasticsearch Show documentation
Elasticsearch subproject :server
package org.elasticsearch.search.profile;
/*
* 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.
*/
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::getTokenLocation);
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::getTokenLocation);
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);
}
}