pylucene 3.5.0-3

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

diff --git a/lucene-java-3.5.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/byTask/utils/Format.java b/lucene-java-3.5.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/byTask/utils/Format.java
new file mode 100644 (file)
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+++ b/lucene-java-3.5.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/byTask/utils/Format.java
@@ -0,0 +1,110 @@
+package org.apache.lucene.benchmark.byTask.utils;
+
+/**
+ * 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.
+ */
+
+import java.text.NumberFormat;
+
+/**
+ * Formatting utilities (for reports).
+ */
+public class Format {
+
+  private static NumberFormat numFormat [] = { 
+    NumberFormat.getInstance(), 
+    NumberFormat.getInstance(),
+    NumberFormat.getInstance(),
+  };
+  private static final String padd = "                                                 ";
+  
+  static {
+    numFormat[0].setMaximumFractionDigits(0);
+    numFormat[0].setMinimumFractionDigits(0);
+    numFormat[1].setMaximumFractionDigits(1);
+    numFormat[1].setMinimumFractionDigits(1);
+    numFormat[2].setMaximumFractionDigits(2);
+    numFormat[2].setMinimumFractionDigits(2);
+  }
+
+  /**
+   * Padd a number from left.
+   * @param numFracDigits number of digits in fraction part - must be 0 or 1 or 2.
+   * @param f number to be formatted.
+   * @param col column name (used for deciding on length).
+   * @return formatted string.
+   */
+  public static String format(int numFracDigits, float f, String col) {
+    String res = padd + numFormat[numFracDigits].format(f);
+    return res.substring(res.length() - col.length());
+  }
+
+  public static String format(int numFracDigits, double f, String col) {
+    String res = padd + numFormat[numFracDigits].format(f);
+    return res.substring(res.length() - col.length());
+  }
+
+  /**
+   * Pad a number from right.
+   * @param numFracDigits number of digits in fraction part - must be 0 or 1 or 2.
+   * @param f number to be formatted.
+   * @param col column name (used for deciding on length).
+   * @return formatted string.
+   */
+  public static String formatPaddRight(int numFracDigits, float f, String col) {
+    String res = numFormat[numFracDigits].format(f) + padd;
+    return res.substring(0, col.length());
+  }
+
+  public static String formatPaddRight(int numFracDigits, double f, String col) {
+    String res = numFormat[numFracDigits].format(f) + padd;
+    return res.substring(0, col.length());
+  }
+
+  /**
+   * Pad a number from left.
+   * @param n number to be formatted.
+   * @param col column name (used for deciding on length).
+   * @return formatted string.
+   */
+  public static String format(int n, String col) {
+    String res = padd + n;
+    return res.substring(res.length() - col.length());
+  }
+
+  /**
+   * Pad a string from right.
+   * @param s string to be formatted.
+   * @param col column name (used for deciding on length).
+   * @return formatted string.
+   */
+  public static String format(String s, String col) {
+    String s1 = (s + padd);
+    return s1.substring(0, Math.min(col.length(), s1.length()));
+  }
+
+  /**
+   * Pad a string from left.
+   * @param s string to be formatted.
+   * @param col column name (used for deciding on length).
+   * @return formatted string.
+   */
+  public static String formatPaddLeft(String s, String col) {
+    String res = padd + s;
+    return res.substring(res.length() - col.length());
+  }
+
+}