pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / benchmark / src / java / org / apache / lucene / benchmark / byTask / feeds / AbstractQueryMaker.java

diff --git a/lucene-java-3.5.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/byTask/feeds/AbstractQueryMaker.java b/lucene-java-3.5.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/byTask/feeds/AbstractQueryMaker.java
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+++ b/lucene-java-3.5.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/byTask/feeds/AbstractQueryMaker.java
@@ -0,0 +1,72 @@
+package org.apache.lucene.benchmark.byTask.feeds;
+/**
+ * Copyright 2005 The Apache Software Foundation
+ *
+ * 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.
+ */
+
+import org.apache.lucene.search.Query;
+import org.apache.lucene.benchmark.byTask.utils.Config;
+
+/**
+ * Abstract base query maker. 
+ * Each query maker should just implement the {@link #prepareQueries()} method.
+ **/
+public abstract class AbstractQueryMaker implements QueryMaker {
+
+  protected int qnum = 0;
+  protected Query[] queries;
+  protected Config config;
+
+  public void resetInputs() {
+    qnum = 0;
+  }
+
+  protected abstract Query[] prepareQueries() throws Exception;
+
+  public void setConfig(Config config) throws Exception {
+    this.config = config;
+    queries = prepareQueries();
+  }
+
+  public String printQueries() {
+    String newline = System.getProperty("line.separator");
+    StringBuilder sb = new StringBuilder();
+    if (queries != null) {
+      for (int i = 0; i < queries.length; i++) {
+        sb.append(i+". "+ queries[i].getClass().getSimpleName()+" - "+queries[i].toString());
+        sb.append(newline);
+      }
+    }
+    return sb.toString();
+  }
+
+  public Query makeQuery() throws Exception {
+    return queries[nextQnum()];
+  }
+  
+  // return next qnum
+  protected synchronized int nextQnum() {
+    int res = qnum;
+    qnum = (qnum+1) % queries.length;
+    return res;
+  }
+
+  /*
+  *  (non-Javadoc)
+  * @see org.apache.lucene.benchmark.byTask.feeds.QueryMaker#makeQuery(int)
+  */
+  public Query makeQuery(int size) throws Exception {
+    throw new Exception(this+".makeQuery(int size) is not supported!");
+  }
+}