    001    /*
    002     * Copyright (c) 2007-2014 Concurrent, Inc. All Rights Reserved.
    003     *
    004     * Project and contact information: http://www.cascading.org/
    005     *
    006     * This file is part of the Cascading project.
    007     *
    008     * Licensed under the Apache License, Version 2.0 (the "License");
    009     * you may not use this file except in compliance with the License.
    010     * You may obtain a copy of the License at
    011     *
    012     *     http://www.apache.org/licenses/LICENSE-2.0
    013     *
    014     * Unless required by applicable law or agreed to in writing, software
    015     * distributed under the License is distributed on an "AS IS" BASIS,
    016     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    017     * See the License for the specific language governing permissions and
    018     * limitations under the License.
    019     */
    020
    021    package cascading.stats;
    022
    023    import cascading.flow.FlowStep;
    024    import cascading.management.state.ClientState;
    025
    026    /** Class StepStats collects {@link cascading.flow.FlowStep} specific statistics. */
    027    public abstract class FlowStepStats extends CascadingStats
    028      {
    029      private final FlowStep flowStep;
    030
    031      /** Constructor CascadingStats creates a new CascadingStats instance. */
    032      protected FlowStepStats( FlowStep flowStep, ClientState clientState )
    033        {
    034        super( flowStep.getName(), clientState );
    035        this.flowStep = flowStep;
    036        }
    037
    038      @Override
    039      public String getID()
    040        {
    041        return flowStep.getID();
    042        }
    043
    044      protected FlowStep getFlowStep()
    045        {
    046        return flowStep;
    047        }
    048
    049      @Override
    050      public synchronized void recordInfo()
    051        {
    052        clientState.recordFlowStep( flowStep );
    053        }
    054
    055      @Override
    056      public String toString()
    057        {
    058        return "Step{" + getStatsString() + '}';
    059        }
    060
    061      public abstract void recordChildStats();
    062      }