001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2011 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    package org.sonar.batch.index;
021    
022    import com.google.common.collect.ArrayListMultimap;
023    import com.google.common.collect.ListMultimap;
024    import com.google.common.collect.Lists;
025    import org.sonar.api.measures.Measure;
026    import org.sonar.api.measures.MeasuresFilter;
027    import org.sonar.api.measures.MeasuresFilters;
028    import org.sonar.api.resources.Resource;
029    import org.sonar.api.rules.Violation;
030    import org.sonar.api.utils.SonarException;
031    
032    import java.util.Collection;
033    import java.util.Collections;
034    import java.util.List;
035    
036    public final class Bucket {
037    
038      private Resource resource;
039      private ListMultimap<String, Measure> measuresByMetric = ArrayListMultimap.create();
040      private List<Violation> violations = Lists.newLinkedList();
041    
042      private Bucket parent;
043      private List<Bucket> children;
044    
045      public Bucket(Resource resource) {
046        this.resource = resource;
047      }
048    
049      public Resource getResource() {
050        return resource;
051      }
052    
053      public Bucket setParent(Bucket parent) {
054        this.parent = parent;
055        if (parent != null) {
056          parent.addChild(this);
057        }
058        return this;
059      }
060    
061      private Bucket addChild(Bucket child) {
062        if (children == null) {
063          children = Lists.newArrayList();
064        }
065        children.add(child);
066        return this;
067      }
068    
069      private void removeChild(Bucket child) {
070        if (children != null) {
071          children.remove(child);
072        }
073      }
074    
075      public List<Bucket> getChildren() {
076        return (children == null ? Collections.<Bucket>emptyList() : children);
077      }
078    
079      public Bucket getParent() {
080        return parent;
081      }
082    
083      public void addViolation(Violation violation) {
084        violations.add(violation);
085      }
086    
087      public List<Violation> getViolations() {
088        return violations;
089      }
090    
091      public void addMeasure(Measure measure) {
092        List<Measure> metricMeasures = measuresByMetric.get(measure.getMetric().getKey());
093    
094        boolean add = true;
095        if (metricMeasures != null) {
096          int index = metricMeasures.indexOf(measure);
097          if (index > -1) {
098            if (metricMeasures.get(index) == measure) {
099              add = false;
100            } else {
101              throw new SonarException("Can not add twice the same measure on " + resource + ": " + measure);
102            }
103          }
104        }
105        if (add) {
106          measuresByMetric.put(measure.getMetric().getKey(), measure);
107        }
108      }
109    
110      public void clear() {
111        measuresByMetric = null;
112        violations = null;
113        children = null;
114        if (parent != null) {
115          parent.removeChild(this);
116          parent = null;
117        }
118      }
119    
120      public <M> M getMeasures(final MeasuresFilter<M> filter) {
121        Collection<Measure> unfiltered;
122        if (filter instanceof MeasuresFilters.MetricFilter) {
123          unfiltered = measuresByMetric.get(((MeasuresFilters.MetricFilter) filter).filterOnMetricKey());
124        } else {
125          unfiltered = measuresByMetric.values();
126        }
127        return filter.filter(unfiltered);
128      }
129    
130      public boolean isExcluded() {
131        return resource.isExcluded();
132      }
133    
134      @Override
135      public boolean equals(Object o) {
136        if (this == o) {
137          return true;
138        }
139        if (o == null || getClass() != o.getClass()) {
140          return false;
141        }
142        Bucket that = (Bucket) o;
143        return resource.equals(that.resource);
144      }
145    
146      @Override
147      public int hashCode() {
148        return resource.hashCode();
149      }
150    }