1 files changed, 52 insertions, 0 deletions
diff --git a/watchmaker/framework/src/java/main/org/uncommons/watchmaker/framework/termination/ElapsedTime.java b/watchmaker/framework/src/java/main/org/uncommons/watchmaker/framework/termination/ElapsedTime.java
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index 0000000..bddea38
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+++ b/watchmaker/framework/src/java/main/org/uncommons/watchmaker/framework/termination/ElapsedTime.java
@@ -0,0 +1,52 @@
+//=============================================================================
+// Copyright 2006-2010 Daniel W. Dyer
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//=============================================================================
+package org.uncommons.watchmaker.framework.termination;
+
+import org.uncommons.watchmaker.framework.PopulationData;
+import org.uncommons.watchmaker.framework.TerminationCondition;
+
+/**
+ * Terminates evolution after a pre-determined period of time has elapsed.
+ * @author Daniel Dyer
+ */
+public class ElapsedTime implements TerminationCondition
+{
+    private final long maxDuration;
+
+    /**
+     * @param maxDuration The maximum period of time (in milliseconds) before
+     * evolution will be terminated.
+     */
+    public ElapsedTime(long maxDuration)
+    {
+        if (maxDuration <= 0)
+        {
+            throw new IllegalArgumentException("Duration must be positive.");
+        }
+        this.maxDuration = maxDuration;
+    }
+
+
+    /**
+     * {@inheritDoc}
+     * This implementation terminates evolution if the pre-configured maximum
+     * permitted time has elapsed.
+     */
+    public boolean shouldTerminate(PopulationData<?> populationData)
+    {
+        return populationData.getElapsedTime() >= maxDuration;
+    }
+}