/*
* 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.search.profile;
import org.elasticsearch.search.internal.ContextIndexSearcher;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/** Wrapper around several {@link Profiler}s that makes management easier. */
public final class Profilers {
private final ContextIndexSearcher searcher;
private final List<Profiler> profilers;
/** Sole constructor. This {@link Profilers} instance will initiall wrap one {@link Profiler}. */
public Profilers(ContextIndexSearcher searcher) {
this.searcher = searcher;
this.profilers = new ArrayList<>();
addProfiler();
}
/** Switch to a new profile. */
public Profiler addProfiler() {
Profiler profiler = new Profiler();
searcher.setProfiler(profiler);
profilers.add(profiler);
return profiler;
}
/** Get the current profiler. */
public Profiler getCurrent() {
return profilers.get(profilers.size() - 1);
}
/** Return the list of all created {@link Profiler}s so far. */
public List<Profiler> getProfilers() {
return Collections.unmodifiableList(profilers);
}
}