Mercurial > hg > Members > kono > jpf-core
annotate src/peers/gov/nasa/jpf/vm/JPF_java_text_DecimalFormat.java @ 0:61d41facf527
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author | Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> |
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date | Fri, 23 Jan 2015 10:14:01 -0800 |
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1 /* |
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2 * Copyright (C) 2014, United States Government, as represented by the |
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3 * Administrator of the National Aeronautics and Space Administration. |
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4 * All rights reserved. |
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5 * |
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6 * The Java Pathfinder core (jpf-core) platform is licensed under the |
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7 * Apache License, Version 2.0 (the "License"); you may not use this file except |
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8 * in compliance with the License. You may obtain a copy of the License at |
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9 * |
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10 * http://www.apache.org/licenses/LICENSE-2.0. |
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11 * |
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12 * Unless required by applicable law or agreed to in writing, software |
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13 * distributed under the License is distributed on an "AS IS" BASIS, |
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14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 * See the License for the specific language governing permissions and |
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16 * limitations under the License. |
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17 */ |
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18 |
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19 package gov.nasa.jpf.vm; |
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20 |
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21 import gov.nasa.jpf.annotation.MJI; |
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22 import gov.nasa.jpf.vm.MJIEnv; |
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23 import gov.nasa.jpf.vm.NativePeer; |
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24 |
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25 import java.text.DecimalFormat; |
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26 import java.text.Format; |
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27 import java.text.NumberFormat; |
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28 import java.text.ParsePosition; |
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29 |
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30 // NOTE - this only works because DecimalFormat is a Format subclass, i.e. |
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31 // the java.text.Format native peer will be initialized first |
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32 // (otherwise we shouldn't depend on static data of other native peers) |
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33 |
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34 public class JPF_java_text_DecimalFormat extends NativePeer { |
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35 |
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36 static final int INTEGER_STYLE=0; |
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37 static final int NUMBER_STYLE=1; |
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38 |
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39 NumberFormat getInstance (MJIEnv env, int objref) { |
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40 Format fmt = JPF_java_text_Format.getInstance(env,objref); |
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41 assert fmt instanceof NumberFormat; |
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42 |
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43 return (NumberFormat)fmt; |
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44 } |
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45 |
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46 /* |
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47 * NOTE: if we would directly intercept the ctors, we would have to |
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48 * explicitly call the superclass ctors here (the 'id' handle gets |
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49 * initialized in the java.text.Format ctor) |
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50 */ |
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51 @MJI |
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52 public void init0____V (MJIEnv env, int objref) { |
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53 DecimalFormat fmt = new DecimalFormat(); |
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54 JPF_java_text_Format.putInstance(env,objref,fmt); |
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55 } |
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56 |
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57 @MJI |
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58 public void init0__Ljava_lang_String_2__V (MJIEnv env, int objref, int patternref) { |
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59 String pattern = env.getStringObject(patternref); |
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60 |
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61 DecimalFormat fmt = new DecimalFormat(pattern); |
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62 JPF_java_text_Format.putInstance(env,objref,fmt); |
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63 } |
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64 |
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65 @MJI |
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66 public void init0__I__V (MJIEnv env, int objref, int style) { |
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67 NumberFormat fmt = null; |
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68 if (style == INTEGER_STYLE) { |
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69 fmt = NumberFormat.getIntegerInstance(); |
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70 } else if (style == NUMBER_STYLE) { |
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71 fmt = NumberFormat.getNumberInstance(); |
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72 } else { |
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73 // unknown style |
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74 fmt = new DecimalFormat(); |
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75 } |
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76 |
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77 JPF_java_text_Format.putInstance(env,objref,fmt); |
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78 } |
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79 |
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80 @MJI |
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81 public void setMaximumFractionDigits__I__V (MJIEnv env, int objref, int newValue){ |
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82 NumberFormat fmt = getInstance(env,objref); |
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83 if (fmt != null) { |
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84 fmt.setMaximumFractionDigits(newValue); |
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85 } |
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86 } |
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87 |
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88 @MJI |
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89 public void setMaximumIntegerDigits__I__V (MJIEnv env, int objref, int newValue){ |
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90 NumberFormat fmt = getInstance(env,objref); |
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91 if (fmt != null) { |
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92 fmt.setMaximumIntegerDigits(newValue); |
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93 } |
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94 } |
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95 |
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96 @MJI |
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97 public void setMinimumFractionDigits__I__V (MJIEnv env, int objref, int newValue){ |
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98 NumberFormat fmt = getInstance(env,objref); |
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99 if (fmt != null) { |
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100 fmt.setMinimumFractionDigits(newValue); |
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101 } |
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102 } |
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103 |
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104 @MJI |
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105 public void setMinimumIntegerDigits__I__V (MJIEnv env, int objref, int newValue){ |
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106 NumberFormat fmt = getInstance(env,objref); |
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107 if (fmt != null) { |
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108 fmt.setMinimumIntegerDigits(newValue); |
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109 } |
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110 } |
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111 |
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112 @MJI |
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113 public int format__J__Ljava_lang_String_2 (MJIEnv env, int objref, long number) { |
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114 NumberFormat fmt = getInstance(env,objref); |
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115 if (fmt != null) { |
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116 String s = fmt.format(number); |
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117 int sref = env.newString(s); |
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118 return sref; |
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119 } |
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120 |
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121 return MJIEnv.NULL; |
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122 } |
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123 |
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124 @MJI |
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125 public int format__D__Ljava_lang_String_2 (MJIEnv env, int objref, double number) { |
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126 NumberFormat fmt = getInstance(env,objref); |
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127 if (fmt != null) { |
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128 String s = fmt.format(number); |
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129 int sref = env.newString(s); |
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130 return sref; |
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131 } |
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132 |
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133 return MJIEnv.NULL; |
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134 } |
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135 |
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136 @MJI |
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137 public void setParseIntegerOnly__Z__V(MJIEnv env, int objref, boolean value) { |
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138 NumberFormat fmt = getInstance(env,objref); |
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139 if (fmt != null) { |
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140 fmt.setParseIntegerOnly(value); |
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141 } |
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142 } |
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143 |
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144 @MJI |
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145 public boolean isParseIntegerOnly____Z(MJIEnv env, int objref) { |
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146 NumberFormat fmt = getInstance(env,objref); |
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147 if (fmt != null) { |
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148 return fmt.isParseIntegerOnly(); |
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149 } |
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150 return false; |
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151 } |
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152 |
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153 @MJI |
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154 public void setGroupingUsed__Z__V(MJIEnv env, int objref, boolean newValue) { |
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155 NumberFormat fmt = getInstance(env,objref); |
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156 if (fmt != null) { |
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157 fmt.setGroupingUsed(newValue); |
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158 } |
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159 } |
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160 |
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161 @MJI |
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162 public boolean isGroupingUsed____Z(MJIEnv env, int objref) { |
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163 NumberFormat fmt = getInstance(env,objref); |
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164 if (fmt != null) { |
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165 return fmt.isGroupingUsed(); |
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166 } |
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167 return false; |
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168 } |
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169 |
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170 @MJI |
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171 public int parse__Ljava_lang_String_2Ljava_text_ParsePosition_2__Ljava_lang_Number_2(MJIEnv env, int objref,int sourceRef,int parsePositionRef) { |
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172 String source = env.getStringObject(sourceRef); |
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173 ParsePosition parsePosition = createParsePositionFromRef(env,parsePositionRef); |
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174 NumberFormat fmt = getInstance(env,objref); |
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175 Number number = null; |
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176 if (fmt != null) { |
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177 number = fmt.parse(source,parsePosition); |
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178 } |
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179 updateParsePositionRef(env,parsePositionRef, parsePosition); |
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180 return createNumberRefFromNumber(env,number); |
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181 } |
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182 |
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183 private static ParsePosition createParsePositionFromRef(MJIEnv env,int parsePositionRef) { |
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184 int index = env.getIntField(parsePositionRef, "index"); |
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185 int errorIndex = env.getIntField(parsePositionRef, "errorIndex"); |
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186 ParsePosition ps = new ParsePosition(index); |
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187 ps.setErrorIndex(errorIndex); |
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188 return ps; |
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189 } |
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190 |
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191 private static void updateParsePositionRef(MJIEnv env,int parsePositionRef, ParsePosition parsePosition) { |
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192 env.setIntField(parsePositionRef, "index", parsePosition.getIndex()); |
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193 env.setIntField(parsePositionRef, "errorIndex", parsePosition.getErrorIndex()); |
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194 } |
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195 |
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196 private static int createNumberRefFromNumber(MJIEnv env,Number number) { |
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197 int numberRef = MJIEnv.NULL; |
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198 if(number instanceof Double) { |
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199 numberRef = env.newObject("java.lang.Double"); |
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200 env.setDoubleField(numberRef, "value", number.doubleValue()); |
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201 } else if(number instanceof Long) { |
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202 numberRef = env.newObject("java.lang.Long"); |
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203 env.setLongField(numberRef, "value", number.longValue()); |
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204 } |
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205 return numberRef; |
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206 } |
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207 |
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208 } |