/*
* Copyright 2017 NAVER Corp.
*
* Licensed 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 com.navercorp.pinpoint.profiler.context.provider.stat.activethread;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.navercorp.pinpoint.profiler.context.active.ActiveTraceHistogramFactory;
import com.navercorp.pinpoint.profiler.context.active.ActiveTraceRepository;
import com.navercorp.pinpoint.profiler.monitor.metric.activethread.ActiveTraceMetric;
import com.navercorp.pinpoint.profiler.monitor.metric.activethread.DefaultActiveTraceMetric;
/**
* @author HyunGil Jeong
*/
public class ActiveTraceMetricProvider implements Provider<ActiveTraceMetric> {
private final ActiveTraceRepository activeTraceRepository;
@Inject
public ActiveTraceMetricProvider(Provider<ActiveTraceRepository> activeTraceRepositoryProvider) {
if (activeTraceRepositoryProvider == null) {
throw new NullPointerException("activeTraceRepositoryProvider must not be null");
}
this.activeTraceRepository = activeTraceRepositoryProvider.get();
}
@Override
public ActiveTraceMetric get() {
if (activeTraceRepository == null) {
return ActiveTraceMetric.UNSUPPORTED_ACTIVE_TRACE_METRIC;
} else {
ActiveTraceHistogramFactory activeTraceHistogramFactory = new ActiveTraceHistogramFactory(activeTraceRepository);
return new DefaultActiveTraceMetric(activeTraceHistogramFactory);
}
}
}