pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / backwards / src / test-framework / org / apache / lucene / util / LuceneJUnitDividingSelector.java

diff --git a/lucene-java-3.5.0/lucene/backwards/src/test-framework/org/apache/lucene/util/LuceneJUnitDividingSelector.java b/lucene-java-3.5.0/lucene/backwards/src/test-framework/org/apache/lucene/util/LuceneJUnitDividingSelector.java
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+++ b/lucene-java-3.5.0/lucene/backwards/src/test-framework/org/apache/lucene/util/LuceneJUnitDividingSelector.java
@@ -0,0 +1,66 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You 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.apache.lucene.util;
+import java.io.File;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.types.Parameter;
+import org.apache.tools.ant.types.selectors.BaseExtendSelector;
+
+/** Divides filesets into equal groups */
+public class LuceneJUnitDividingSelector extends BaseExtendSelector {
+  private int counter;
+  /** Number of total parts to split. */
+  private int divisor;
+  /** Current part to accept. */
+  private int part;
+
+  @Override
+  public void setParameters(Parameter[] pParameters) {
+    super.setParameters(pParameters);
+    for (int j = 0; j < pParameters.length; j++) {
+      Parameter p = pParameters[j];
+      if ("divisor".equalsIgnoreCase(p.getName())) {
+        divisor = Integer.parseInt(p.getValue());
+      }
+      else if ("part".equalsIgnoreCase(p.getName())) {
+        part = Integer.parseInt(p.getValue());
+      }
+      else {
+        throw new BuildException("unknown " + p.getName());
+      }
+    }
+  }
+
+  @Override
+  public void verifySettings() {
+    super.verifySettings();
+    if (divisor <= 0 || part <= 0) {
+      throw new BuildException("part or divisor not set");
+    }
+    if (part > divisor) {
+      throw new BuildException("part must be <= divisor");
+    }
+  }
+
+  @Override
+  public boolean isSelected(File dir, String name, File path) {
+    counter = counter % divisor + 1;
+    return counter == part;
+  }
+}