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annotate truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/Schema.java @ 22496:b3569a53c24c

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Refactor and improve ComplexNumber sequence tests
author Matthias Grimmer <grimmer@ssw.jku.at>
date Mon, 14 Dec 2015 14:20:08 +0100
parents aeba89e1d8da
children
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1 /*
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2 * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation. Oracle designates this
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8 * particular file as subject to the "Classpath" exception as provided
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9 * by Oracle in the LICENSE file that accompanied this code.
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10 *
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 * version 2 for more details (a copy is included in the LICENSE file that
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15 * accompanied this code).
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16 *
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17 * You should have received a copy of the GNU General Public License version
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18 * 2 along with this work; if not, write to the Free Software Foundation,
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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20 *
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 * or visit www.oracle.com if you need additional information or have any
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23 * questions.
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24 */
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25 package com.oracle.truffle.tck;
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26
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27 import java.nio.ByteBuffer;
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28 import java.util.List;
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29
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30 final class Schema {
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31
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32 enum Type {
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33 DOUBLE(Double.SIZE / Byte.SIZE),
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34 INT(Integer.SIZE / Byte.SIZE);
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35
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36 private final int size;
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37
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38 private Type(int size) {
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39 this.size = size;
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40 }
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41 }
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42
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43 private final int size;
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44 private final boolean rowBased;
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45 private final List<String> names;
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46 private final List<Type> types;
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47
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48 Schema(int size, boolean rowBased, List<String> names, List<Type> types) {
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49 this.size = size;
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50 this.rowBased = rowBased;
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51 this.names = names;
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52 this.types = types;
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53 }
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54
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55 public int length() {
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56 return size;
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57 }
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58
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59 public Object get(byte[] buffer, int index, String name) {
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60 assert names.contains(name);
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61 int offset = rowBased ? getRowOffset(name, index) : getColumnOffset(name, index);
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62 if (types.get(names.indexOf(name)) == Type.DOUBLE) {
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63 byte[] b = new byte[Type.DOUBLE.size];
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64 for (int i = 0; i < Type.DOUBLE.size; i++) {
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65 b[i] = buffer[offset + i];
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66 }
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67 return ByteBuffer.wrap(b).getDouble();
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68 } else if (types.get(names.indexOf(name)) == Type.INT) {
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69 byte[] b = new byte[Type.INT.size];
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70 for (int i = 0; i < Type.INT.size; i++) {
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71 b[i] = buffer[offset + i];
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72 }
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73 return ByteBuffer.wrap(b).getInt();
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74 }
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75 throw new IllegalStateException();
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76 }
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77
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78 private int getRowSize() {
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79 assert rowBased;
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80 int rowSize = 0;
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81 for (Type t : types) {
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82 rowSize += t.size;
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83 }
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84 return rowSize;
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85 }
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86
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87 private int getRowOffset(String name, int index) {
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88 assert rowBased;
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89 if (names.contains(name)) {
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90 int offset = 0;
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91 for (int i = 0; i < names.size(); i++) {
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92 if (names.get(i).equals(name)) {
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93 return index * getRowSize() + offset;
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94 } else {
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95 offset += types.get(i).size;
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96 }
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97 }
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98 } else {
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99 throw new IllegalArgumentException();
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100 }
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101 throw new IllegalStateException();
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102 }
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103
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104 private int getColumnOffset(String name, int index) {
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105 assert !rowBased;
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106 if (names.contains(name)) {
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107 int offset = 0;
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108 for (int i = 0; i < names.size(); i++) {
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109 if (names.get(i).equals(name)) {
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110 return offset + index * types.get(i).size;
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111 } else {
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112 offset += types.get(i).size * size;
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113 }
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114 }
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115 } else {
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116 throw new IllegalArgumentException();
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117 }
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118 throw new IllegalStateException();
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119 }
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120 }