1 files changed, 75 insertions, 0 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/logging/statistics/MillisTimeDuration.java b/src/de/lmu/ifi/dbs/elki/logging/statistics/MillisTimeDuration.java
new file mode 100644
index 00000000..9f2cfd64
--- /dev/null
+++ b/src/de/lmu/ifi/dbs/elki/logging/statistics/MillisTimeDuration.java
@@ -0,0 +1,75 @@
+package de.lmu.ifi.dbs.elki.logging.statistics;
+
+/*
+ This file is part of ELKI:
+ Environment for Developing KDD-Applications Supported by Index-Structures
+
+ Copyright (C) 2013
+ Ludwig-Maximilians-Universität München
+ Lehr- und Forschungseinheit für Datenbanksysteme
+ ELKI Development Team
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Class that tracks the runtime of a task with {@code System.nanoTime()}
+ * 
+ * @author Erich Schubert
+ */
+public class MillisTimeDuration extends AbstractStatistic implements Duration {
+  /**
+   * Tracking variables.
+   */
+  long begin = -1, end = -2;
+
+  /**
+   * Constructor.
+   * 
+   * @param key Key
+   */
+  public MillisTimeDuration(String key) {
+    super(key);
+  }
+
+  @Override
+  public void begin() {
+    begin = System.currentTimeMillis();
+  }
+
+  @Override
+  public void end() {
+    end = System.currentTimeMillis();
+  }
+
+  @Override
+  public long getBegin() {
+    return begin;
+  }
+
+  @Override
+  public long getEnd() {
+    return end;
+  }
+
+  @Override
+  public long getDuration() {
+    return (end - begin);
+  }
+
+  @Override
+  public String formatValue() {
+    return getDuration() + " ms";
+  }
+}