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diff --git a/sonar-squid/src/main/java/org/sonar/squid/measures/Measures.java b/sonar-squid/src/main/java/org/sonar/squid/measures/Measures.java
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+++ b/sonar-squid/src/main/java/org/sonar/squid/measures/Measures.java
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+/*
+ * Sonar, open source software quality management tool.
+ * Copyright (C) 2009 SonarSource SA
+ * mailto:contact AT sonarsource DOT com
+ *
+ * Sonar is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * Sonar is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Sonar; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
+ */
+package org.sonar.squid.measures;
+
+import java.util.IdentityHashMap;
+import java.util.Map;
+
+public class Measures {
+
+  private Map<MetricDef, Measure> measures = new IdentityHashMap<MetricDef, Measure>();
+
+  public double getValue(MetricDef metric) {
+    Measure measure = measures.get(metric);
+    if (measure == null) {
+      return 0;
+    }
+    return measure.getValue();
+  }
+
+  public Object getData(MetricDef metric) {
+    Measure measure = measures.get(metric);
+    if (measure == null) {
+      return null;
+    }
+    return measure.getData();
+  }
+
+  public void setValue(MetricDef metric, double measure) {
+    getMeasureOrCreateIt(metric).setValue(measure);
+  }
+
+  public void setData(MetricDef metric, Object data) {
+    getMeasureOrCreateIt(metric).setData(data);
+  }
+
+  private Measure getMeasureOrCreateIt(MetricDef metric) {
+    Measure measure = measures.get(metric);
+    if (measure == null) {
+      measure = new Measure(0);
+      measures.put(metric, measure);
+    }
+    return measure;
+  }
+
+  public void removeMeasure(MetricDef metric) {
+    measures.remove(metric);
+  }
+
+  private static final class Measure {
+
+    private double value;
+    private Object data;
+
+    private Measure(double value) {
+      this.value = value;
+    }
+
+    private double getValue() {
+      return value;
+    }
+
+    private void setValue(double value) {
+      this.value = value;
+    }
+
+    private Object getData() {
+      return data;
+    }
+
+    private void setData(Object data) {
+      this.data = data;
+    }
+  }
+
+}