org.camunda.bpm.engine.impl.metrics.reporter.MetricsCollectionTask Maven / Gradle / Ivy

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/*
 * Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
 * under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership. Camunda licenses this file to you under the Apache License,
 * Version 2.0; 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.camunda.bpm.engine.impl.metrics.reporter;

import java.util.ArrayList;
import java.util.List;
import java.util.TimerTask;

import org.camunda.bpm.engine.impl.ProcessEngineLogger;
import org.camunda.bpm.engine.impl.interceptor.Command;
import org.camunda.bpm.engine.impl.interceptor.CommandContext;
import org.camunda.bpm.engine.impl.interceptor.CommandExecutor;
import org.camunda.bpm.engine.impl.metrics.Meter;
import org.camunda.bpm.engine.impl.metrics.MetricsLogger;
import org.camunda.bpm.engine.impl.metrics.MetricsRegistry;
import org.camunda.bpm.engine.impl.persistence.entity.MeterLogEntity;
import org.camunda.bpm.engine.impl.util.ClockUtil;

/**
 *
 * @author Daniel Meyer
 *
 */
public class MetricsCollectionTask extends TimerTask {

  private final static MetricsLogger LOG = ProcessEngineLogger.METRICS_LOGGER;

  protected MetricsRegistry metricsRegistry;
  protected CommandExecutor commandExecutor;
  protected String reporterId = null;

  public MetricsCollectionTask(MetricsRegistry metricsRegistry, CommandExecutor commandExecutor) {
    this.metricsRegistry = metricsRegistry;
    this.commandExecutor = commandExecutor;
  }

  public void run() {
    try {
      collectMetrics();
    }
    catch(Exception e) {
      try {
        LOG.couldNotCollectAndLogMetrics(e);
      }
      catch (Exception ex) {
        // ignore if log can't be written
      }
    }
  }

  protected void collectMetrics() {

    List logs = new ArrayList<>();
    for (Meter meter : metricsRegistry.getDbMeters().values()) {
      logs.add(new MeterLogEntity(meter.getName(),
          reporterId,
          meter.getAndClear(),
          ClockUtil.getCurrentTime()));

    }

    commandExecutor.execute(new MetricsCollectionCmd(logs));
  }

  public String getReporter() {
    return reporterId;
  }

  public void setReporter(String reporterId) {
    this.reporterId = reporterId;
  }

  protected class MetricsCollectionCmd implements Command {

    protected List logs;

    public MetricsCollectionCmd(List logs) {
      this.logs = logs;
    }

    @Override
    public Void execute(CommandContext commandContext) {
      for (MeterLogEntity meterLogEntity : logs) {
        commandContext.getMeterLogManager().insert(meterLogEntity);
      }
      return null;
    }
  }

}