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 java.util.Collection;
024    import java.util.HashSet;
025    import java.util.LinkedList;
026    import java.util.List;
027    import java.util.Set;
028    
029    import cascading.cascade.Cascade;
030    import cascading.management.state.ClientState;
031    
032    /** Class CascadeStats collects {@link Cascade} specific statistics. */
033    public class CascadeStats extends CascadingStats
034      {
035      private Cascade cascade;
036      /** Field flowStatsList */
037      final List<FlowStats> flowStatsList = new LinkedList<FlowStats>(); // maintain order
038    
039      public CascadeStats( Cascade cascade, ClientState clientState )
040        {
041        super( cascade.getName(), clientState );
042        this.cascade = cascade;
043        }
044    
045      @Override
046      public String getID()
047        {
048        return cascade.getID();
049        }
050    
051      @Override
052      public synchronized void recordInfo()
053        {
054        clientState.recordCascade( cascade );
055        }
056    
057      /**
058       * Method addFlowStats add a child {@link cascading.flow.Flow} {2link FlowStats} instance.
059       *
060       * @param flowStats of type FlowStats
061       */
062      public void addFlowStats( FlowStats flowStats )
063        {
064        flowStatsList.add( flowStats );
065        }
066    
067      /**
068       * Method getFlowCount returns the number of {@link cascading.flow.Flow}s executed by the Cascade.
069       *
070       * @return the flowCount (type int) of this CascadeStats object.
071       */
072      public int getFlowCount()
073        {
074        return flowStatsList.size();
075        }
076    
077      @Override
078      public Collection<String> getCounterGroups()
079        {
080        Set<String> results = new HashSet<String>();
081    
082        for( FlowStats flowStats : flowStatsList )
083          results.addAll( flowStats.getCounterGroups() );
084    
085        return results;
086        }
087    
088      @Override
089      public Collection<String> getCounterGroupsMatching( String regex )
090        {
091        Set<String> results = new HashSet<String>();
092    
093        for( FlowStats flowStats : flowStatsList )
094          results.addAll( flowStats.getCounterGroupsMatching( regex ) );
095    
096        return results;
097        }
098    
099      @Override
100      public Collection<String> getCountersFor( String group )
101        {
102        Set<String> results = new HashSet<String>();
103    
104        for( FlowStats flowStats : flowStatsList )
105          results.addAll( flowStats.getCountersFor( group ) );
106    
107        return results;
108        }
109    
110      @Override
111      public long getCounterValue( Enum counter )
112        {
113        long value = 0;
114    
115        for( FlowStats flowStats : flowStatsList )
116          value += flowStats.getCounterValue( counter );
117    
118        return value;
119        }
120    
121      @Override
122      public long getCounterValue( String group, String counter )
123        {
124        long value = 0;
125    
126        for( FlowStats flowStats : flowStatsList )
127          value += flowStats.getCounterValue( group, counter );
128    
129        return value;
130        }
131    
132      @Override
133      public void captureDetail()
134        {
135        for( FlowStats flowStats : flowStatsList )
136          flowStats.captureDetail();
137        }
138    
139      @Override
140      public Collection getChildren()
141        {
142        return flowStatsList;
143        }
144    
145      @Override
146      public String toString()
147        {
148        return "Cascade{" + "flowStatsList=" + flowStatsList + '}';
149        }
150      }