001    /*
002     * Copyright (c) 2007-2015 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      }