1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * 
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * The contents of this file are subject to the terms of either the Universal Permissive License
   7  * v 1.0 as shown at http://oss.oracle.com/licenses/upl
   8  *
   9  * or the following license:
  10  *
  11  * Redistribution and use in source and binary forms, with or without modification, are permitted
  12  * provided that the following conditions are met:
  13  * 
  14  * 1. Redistributions of source code must retain the above copyright notice, this list of conditions
  15  * and the following disclaimer.
  16  * 
  17  * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
  18  * conditions and the following disclaimer in the documentation and/or other materials provided with
  19  * the distribution.
  20  * 
  21  * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
  22  * endorse or promote products derived from this software without specific prior written permission.
  23  * 
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
  25  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  26  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
  27  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  30  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
  31  * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33 package org.openjdk.jmc.common.test.mock.item;
  34 
  35 import java.text.NumberFormat;
  36 import java.util.Random;
  37 
  38 import org.openjdk.jmc.common.IMCStackTrace;
  39 import org.openjdk.jmc.common.item.IItemCollection;
  40 
  41 public class MockCollections {
  42         public static IItemCollection getNumberCollection(Number[] values) {
  43                 return new MockItemCollection<Number, MockNumberType>(values, new MockNumberType());
  44         }
  45 
  46         /**
  47          * Will contain the exact same array of n number of double values between 0 and X between
  48          * invocations.
  49          */
  50         public static Number[] generateNumberArray(int n, double x) {
  51                 Number[] array = new Number[n];
  52                 Random RND = new Random(4711);
  53                 for (int i = 0; i < array.length; i++) {
  54                         array[i] = RND.nextDouble() * x;
  55                 }
  56                 return array;
  57         }
  58 
  59         /**
  60          * Used to verify statistical calculations in external application.
  61          */
  62         public static String generateFullPrecisionString(Number[] values) {
  63                 NumberFormat formatter = NumberFormat.getInstance();
  64                 formatter.setMaximumFractionDigits(340);
  65                 StringBuilder builder = new StringBuilder();
  66                 for (int i = 0; i < values.length; i++) {
  67                         builder.append(formatter.format(values[i]));
  68                         builder.append("\n"); //$NON-NLS-1$
  69                 }
  70                 return builder.toString();
  71         }
  72 
  73         public static IItemCollection getStackTraceCollection(IMCStackTrace[] traces) {
  74                 return new MockItemCollection<IMCStackTrace, MockStacktraceType>(traces, new MockStacktraceType());
  75         }
  76 
  77         public static void main(String[] args) {
  78                 System.out.println(generateFullPrecisionString(generateNumberArray(5, 5)));
  79         }
  80 }