1 | package com.framsticks.params; |
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2 | |
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3 | import java.lang.reflect.AnnotatedElement; |
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4 | import java.lang.reflect.Array; |
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5 | import java.lang.reflect.Field; |
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6 | import java.lang.reflect.GenericArrayType; |
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7 | import java.lang.reflect.Member; |
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8 | import java.lang.reflect.Method; |
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9 | import java.lang.reflect.Modifier; |
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10 | import java.lang.reflect.ParameterizedType; |
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11 | import java.lang.reflect.Type; |
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12 | import java.util.ArrayList; |
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13 | import java.util.Arrays; |
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14 | import java.util.Collection; |
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15 | import java.util.Collections; |
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16 | import java.util.Comparator; |
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17 | import java.util.HashMap; |
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18 | import java.util.HashSet; |
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19 | import java.util.IdentityHashMap; |
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20 | import java.util.LinkedList; |
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21 | import java.util.List; |
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22 | import java.util.Map; |
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23 | |
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24 | import com.framsticks.params.annotations.FramsClassAnnotation; |
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25 | import com.framsticks.params.annotations.ParamAnnotation; |
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26 | import com.framsticks.params.types.ProcedureParam; |
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27 | // import com.framsticks.util.FramsticksException; |
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28 | |
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29 | public class ParamCandidate { |
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30 | |
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31 | public class OneTime<T> { |
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32 | protected final String name; |
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33 | T value; |
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34 | |
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35 | /** |
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36 | * @param name |
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37 | */ |
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38 | public OneTime(String name) { |
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39 | this.name = name; |
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40 | } |
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41 | |
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42 | final void set(T value) { |
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43 | if (this.value == null) { |
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44 | this.value = value; |
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45 | return; |
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46 | } |
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47 | if (!this.value.equals(value)) { |
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48 | throw new ConstructionException().msg("already set") |
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49 | .arg("name", name) |
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50 | .arg("in", ParamCandidate.this) |
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51 | .arg("already", this.value) |
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52 | .arg("now", value); |
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53 | } |
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54 | } |
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55 | |
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56 | public final T get() { |
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57 | return value; |
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58 | } |
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59 | |
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60 | public final boolean has() { |
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61 | return value != null; |
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62 | } |
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63 | |
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64 | @Override |
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65 | public String toString() { |
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66 | return value == null ? "<null>" : value.toString(); |
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67 | } |
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68 | |
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69 | |
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70 | } |
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71 | |
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72 | protected final String id; |
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73 | protected final OneTime<String> name = new OneTime<>("name"); |
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74 | protected final OneTime<Type> type = new OneTime<>("type"); |
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75 | protected final OneTime<Field> field = new OneTime<>("field"); |
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76 | protected final OneTime<Method> setter = new OneTime<>("setter"); |
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77 | protected final OneTime<Method> getter = new OneTime<>("getter"); |
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78 | protected final OneTime<Method> caller = new OneTime<>("caller"); |
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79 | protected final OneTime<Method> adder = new OneTime<>("adder"); |
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80 | protected final OneTime<Method> remover = new OneTime<>("remover"); |
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81 | protected final OneTime<Class<? extends Param>> paramType = new OneTime<>("paramType"); |
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82 | protected final OneTime<String> stringType = new OneTime<>("stringType"); |
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83 | |
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84 | protected int flags = 0; |
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85 | |
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86 | protected final List<ParamAnnotation> annotations = new LinkedList<>(); |
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87 | |
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88 | /** |
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89 | * @param id |
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90 | */ |
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91 | public ParamCandidate(String id) { |
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92 | this.id = id; |
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93 | } |
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94 | |
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95 | /** |
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96 | * @return the id |
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97 | */ |
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98 | public String getId() { |
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99 | return id; |
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100 | } |
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101 | |
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102 | /** |
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103 | * @return the name |
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104 | */ |
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105 | public String getName() { |
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106 | return name.get(); |
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107 | } |
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108 | |
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109 | /** |
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110 | * @return the type |
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111 | */ |
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112 | public Type getType() { |
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113 | return type.get(); |
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114 | } |
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115 | |
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116 | public Class<?> getRawType() { |
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117 | return getRawClass(type.get()); |
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118 | } |
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119 | |
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120 | void setType(Type type) { |
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121 | this.type.set(type); |
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122 | } |
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123 | |
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124 | |
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125 | /** |
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126 | * @return the field |
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127 | */ |
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128 | public Field getField() { |
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129 | return field.get(); |
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130 | } |
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131 | |
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132 | /** |
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133 | * @return the setter |
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134 | */ |
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135 | public Method getSetter() { |
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136 | return setter.get(); |
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137 | } |
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138 | |
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139 | /** |
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140 | * @return the getter |
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141 | */ |
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142 | public Method getGetter() { |
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143 | return getter.get(); |
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144 | } |
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145 | |
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146 | /** |
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147 | * @return the getter |
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148 | */ |
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149 | public Method getCaller() { |
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150 | return caller.get(); |
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151 | } |
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152 | |
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153 | /** |
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154 | * @return the getter |
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155 | */ |
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156 | public Method getAdder() { |
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157 | return adder.get(); |
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158 | } |
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159 | |
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160 | /** |
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161 | * @return the getter |
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162 | */ |
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163 | public Method getRemover() { |
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164 | return remover.get(); |
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165 | } |
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166 | |
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167 | /** |
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168 | * @return the annotations |
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169 | */ |
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170 | public List<ParamAnnotation> getAnnotations() { |
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171 | return Collections.unmodifiableList(annotations); |
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172 | } |
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173 | |
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174 | protected final java.util.Set<Class<?>> dependantClasses = new HashSet<>(); |
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175 | |
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176 | // public void addDependantClass(Class<?> javaClass) { |
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177 | // dependantClasses.add(javaClass); |
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178 | // } |
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179 | |
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180 | /** |
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181 | * @return the dependantClasses |
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182 | */ |
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183 | public java.util.Set<Class<?>> getDependantClasses() { |
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184 | return Collections.unmodifiableSet(dependantClasses); |
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185 | } |
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186 | |
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187 | void validate() throws ConstructionException { |
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188 | try { |
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189 | if (adder.has() != remover.has()) { |
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190 | throw new ConstructionException().msg("only one of event manipulator methods is defined"); |
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191 | } |
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192 | if (adder.has() && remover.has()) { |
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193 | return; |
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194 | } |
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195 | if (caller.has()) { |
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196 | if (!isPublic(caller)) { |
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197 | throw new ConstructionException().msg("method is not public"); |
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198 | } |
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199 | if (getter.has() || setter.has()) { |
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200 | throw new ConstructionException().msg("getter or setter coexist with caller"); |
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201 | } |
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202 | return; |
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203 | } |
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204 | if (isPublic(field)) { |
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205 | if (getter.has()) { |
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206 | throw new ConstructionException().msg("getter and public field coexist"); |
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207 | } |
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208 | return; |
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209 | } |
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210 | if (isPublic(field)) { |
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211 | if (setter.has()) { |
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212 | throw new ConstructionException().msg("setter and field coexist"); |
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213 | } |
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214 | } |
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215 | |
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216 | if (!getter.has() && !field.has()) { |
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217 | throw new ConstructionException().msg("missing getter or field"); |
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218 | } |
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219 | if (getter.has() || field.has() || setter.has()) { |
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220 | if (type.get().equals(Void.TYPE)) { |
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221 | throw new ConstructionException().msg("type of field is void"); |
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222 | } |
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223 | } |
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224 | } catch (ConstructionException e) { |
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225 | throw e.arg("in", this); |
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226 | } |
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227 | } |
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228 | |
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229 | boolean isFinal() { |
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230 | if (caller.has()) { |
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231 | return false; |
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232 | } |
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233 | if (adder.has() || remover.has()) { |
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234 | return false; |
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235 | } |
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236 | if (field.has()) { |
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237 | return Modifier.isFinal(field.get().getModifiers()); |
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238 | } |
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239 | if (setter.has()) { |
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240 | return false; |
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241 | } |
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242 | if (Collection.class.isAssignableFrom(getRawType())) { |
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243 | return false; |
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244 | } |
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245 | return true; |
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246 | } |
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247 | |
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248 | boolean isReadOnly() { |
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249 | if (caller.has()) { |
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250 | return false; |
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251 | } |
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252 | if (adder.has() || remover.has()) { |
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253 | return false; |
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254 | } |
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255 | if (Collection.class.isAssignableFrom(getRawType())) { |
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256 | return false; |
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257 | } |
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258 | if (isPublic(setter)) { |
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259 | return false; |
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260 | } |
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261 | if (isPublic(field)) { |
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262 | return Modifier.isFinal(field.get().getModifiers()); |
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263 | } |
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264 | return true; |
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265 | } |
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266 | |
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267 | // public static <T extends Param> boolean isParamAnnorationOfTypeOrUnspecified(ParamAnnotation paramAnnotation, Class<T> paramType) { |
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268 | // return paramAnnotation.paramType().equals(Param.class) || paramAnnotation.paramType().equals(paramType); |
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269 | // } |
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270 | |
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271 | // public static <T extends Param> boolean isParamAnnorationOfType(ParamAnnotation paramAnnotation, Class<T> paramType) { |
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272 | // return paramAnnotation.paramType().equals(paramType); |
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273 | // } |
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274 | |
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275 | void add(ParamAnnotation paramAnnotation, Member member, String name) { |
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276 | this.name.set(name); |
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277 | annotations.add(paramAnnotation); |
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278 | flags |= paramAnnotation.flags(); |
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279 | if (!paramAnnotation.paramType().equals(Param.class)) { |
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280 | paramType.set(paramAnnotation.paramType()); |
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281 | } |
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282 | if (!"".equals(paramAnnotation.stringType())) { |
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283 | stringType.set(paramAnnotation.stringType()); |
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284 | } |
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285 | if (member instanceof Field) { |
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286 | field.set((Field) member); |
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287 | setType(field.get().getGenericType()); |
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288 | return; |
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289 | } |
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290 | if (member instanceof Method) { |
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291 | Method m = (Method) member; |
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292 | if (paramAnnotation.paramType().equals(ProcedureParam.class)) { |
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293 | caller.set(m); |
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294 | return; |
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295 | } |
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296 | Type[] ps = m.getGenericParameterTypes(); |
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297 | Class<?>[] pts = m.getParameterTypes(); |
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298 | if (ps.length == 0) { |
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299 | if (m.getReturnType().equals(Void.TYPE)) { |
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300 | throw new ConstructionException().msg("failed to add getter of void return type"); |
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301 | } |
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302 | getter.set(m); |
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303 | setType(m.getGenericReturnType()); |
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304 | return; |
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305 | } |
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306 | if (ps.length == 1) { |
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307 | if (pts[0].equals(EventListener.class)) { |
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308 | if (member.getName().startsWith("add")) { |
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309 | adder.set(m); |
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310 | setType(ps[0]); |
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311 | return; |
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312 | } |
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313 | if (member.getName().startsWith("remove")) { |
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314 | remover.set(m); |
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315 | setType(ps[0]); |
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316 | return; |
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317 | } |
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318 | throw new ConstructionException().msg("invalid name of event manipulator").arg("method", m).arg("in", this); |
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319 | } |
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320 | setter.set(m); |
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321 | setType(ps[0]); |
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322 | return; |
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323 | } |
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324 | throw new ConstructionException().msg("invalid number of arguments").arg("method", m).arg("in", this); |
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325 | } |
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326 | throw new ConstructionException().msg("invalid kind of member").arg("member", member).arg("in", this); |
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327 | } |
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328 | |
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329 | public boolean isPrimitive() { |
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330 | return getRawType().isPrimitive(); |
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331 | } |
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332 | |
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333 | public int getFlags() { |
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334 | int f = flags; |
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335 | if (isReadOnly()) { |
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336 | f |= ParamFlags.READONLY; |
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337 | } |
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338 | return f; |
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339 | } |
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340 | |
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341 | @Override |
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342 | public String toString() { |
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343 | return id + "(" + type.toString() + ")"; |
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344 | } |
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345 | |
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346 | public static boolean isPublic(Member member) { |
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347 | return Modifier.isPublic(member.getModifiers()); |
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348 | } |
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349 | |
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350 | public static boolean isPublic(OneTime<? extends Member> v) { |
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351 | return v.has() ? isPublic(v.get()) : false; |
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352 | } |
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353 | |
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354 | public static <M extends Member & AnnotatedElement> void filterParamsCandidates(Set set, M[] members) { |
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355 | for (M m : members) { |
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356 | ParamAnnotation pa = m.getAnnotation(ParamAnnotation.class); |
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357 | if (pa == null) { |
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358 | continue; |
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359 | } |
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360 | String id = FramsClassBuilder.getId(pa, m); |
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361 | ParamCandidate pc = null; |
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362 | if (set.getCandidates().containsKey(id)) { |
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363 | pc = set.getCandidates().get(id); |
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364 | } else { |
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365 | pc = new ParamCandidate(id); |
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366 | set.getCandidates().put(id, pc); |
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367 | set.getOrder().add(pc); |
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368 | } |
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369 | pc.add(pa, m, FramsClassBuilder.getName(pa, m)); |
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370 | } |
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371 | } |
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372 | |
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373 | public static class Set { |
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374 | protected final Map<String, ParamCandidate> candidates; |
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375 | protected final List<ParamCandidate> order; |
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376 | protected final java.util.Set<Class<?>> dependantClasses = new HashSet<>(); |
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377 | protected final java.util.Set<String> dependantClassesFromInfo = new HashSet<>(); |
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378 | |
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379 | /** |
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380 | * @param candidates |
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381 | * @param order |
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382 | */ |
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383 | public Set(Map<String, ParamCandidate> candidates, List<ParamCandidate> order) { |
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384 | this.candidates = candidates; |
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385 | this.order = order; |
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386 | } |
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387 | |
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388 | /** |
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389 | * @return the candidates |
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390 | */ |
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391 | public Map<String, ParamCandidate> getCandidates() { |
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392 | return candidates; |
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393 | } |
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394 | |
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395 | /** |
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396 | * @return the order |
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397 | */ |
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398 | public List<ParamCandidate> getOrder() { |
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399 | return order; |
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400 | } |
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401 | |
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402 | public java.util.Set<Class<?>> getDependentClasses() { |
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403 | return dependantClasses; |
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404 | } |
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405 | |
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406 | public java.util.Set<String> getDependentClassesFromInfo() { |
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407 | return dependantClassesFromInfo; |
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408 | } |
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409 | } |
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410 | |
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411 | protected static final Map<Class<?>, Set> setsCache = Collections.synchronizedMap(new IdentityHashMap<Class<?>, Set>()); |
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412 | |
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413 | public static Set getAllCandidates(final Class<?> javaClass) throws ConstructionException { |
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414 | Set result = setsCache.get(javaClass); |
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415 | if (result != null) { |
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416 | return result; |
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417 | } |
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418 | |
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419 | List<Class<?>> javaClasses = new LinkedList<>(); |
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420 | Class<?> jc = javaClass; |
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421 | while (jc != null) { |
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422 | javaClasses.add(0, jc); |
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423 | jc = jc.getSuperclass(); |
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424 | } |
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425 | |
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426 | result = new Set(new HashMap<String, ParamCandidate>(), new LinkedList<ParamCandidate>()); |
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427 | |
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428 | for (Class<?> j : javaClasses) { |
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429 | Set set = new Set(result.getCandidates(), new LinkedList<ParamCandidate>()); |
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430 | |
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431 | filterParamsCandidates(set, j.getDeclaredFields()); |
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432 | filterParamsCandidates(set, j.getDeclaredMethods()); |
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433 | |
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434 | FramsClassAnnotation fa = j.getAnnotation(FramsClassAnnotation.class); |
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435 | if (fa != null) { |
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436 | |
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437 | if (j != javaClass) { |
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438 | result.dependantClasses.add(j); |
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439 | } |
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440 | for (Class<?> r : fa.register()) { |
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441 | result.dependantClasses.add(r); |
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442 | } |
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443 | for (String i : fa.registerFromInfo()) { |
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444 | result.dependantClassesFromInfo.add(i); |
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445 | } |
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446 | |
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447 | final List<String> order = Arrays.asList(fa.order()); |
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448 | Collections.sort(set.getOrder(), new Comparator<ParamCandidate>() { |
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449 | @Override |
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450 | public int compare(ParamCandidate pc0, ParamCandidate pc1) { |
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451 | int u0 = order.indexOf(pc0.getId()); |
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452 | int u1 = order.indexOf(pc1.getId()); |
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453 | if (u0 == -1 || u1 == -1) { |
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454 | return 0; |
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455 | } |
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456 | return u0 - u1; |
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457 | } |
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458 | }); |
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459 | } |
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460 | result.getOrder().addAll(0, set.getOrder()); |
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461 | } |
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462 | |
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463 | for (ParamCandidate pc : result.getOrder()) { |
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464 | pc.validate(); |
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465 | pc.induceParamType(Param.build()); |
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466 | result.dependantClasses.addAll(pc.getDependantClasses()); |
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467 | } |
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468 | |
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469 | setsCache.put(javaClass, result); |
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470 | |
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471 | return result; |
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472 | } |
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473 | |
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474 | public static Class<?> getRawClass(final Type type) { |
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475 | if (type == null) { |
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476 | throw new IllegalArgumentException(); |
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477 | } |
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478 | if (Class.class.isInstance(type)) { |
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479 | return Class.class.cast(type); |
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480 | } |
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481 | if (ParameterizedType.class.isInstance(type)) { |
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482 | final ParameterizedType parameterizedType = ParameterizedType.class.cast(type); |
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483 | return getRawClass(parameterizedType.getRawType()); |
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484 | } else if (GenericArrayType.class.isInstance(type)) { |
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485 | GenericArrayType genericArrayType = GenericArrayType.class.cast(type); |
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486 | Class<?> c = getRawClass(genericArrayType.getGenericComponentType()); |
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487 | return Array.newInstance(c, 0).getClass(); |
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488 | } else { |
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489 | return null; |
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490 | } |
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491 | } |
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492 | |
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493 | protected ParamBuilder induceParamType(ParamBuilder builder, Type type) { |
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494 | // if (type.equals(Void.TYPE)) { |
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495 | // throw new ConstructionException().msg("void is not a valid type"); |
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496 | // } |
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497 | |
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498 | |
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499 | if (type instanceof ParameterizedType) { |
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500 | ParameterizedType p = (ParameterizedType) type; |
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501 | Type rawType = p.getRawType(); |
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502 | Type containedType = null; |
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503 | boolean map = false; |
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504 | StringBuilder b = new StringBuilder(); |
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505 | if (rawType.equals(Map.class)) { |
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506 | containedType = p.getActualTypeArguments()[1]; |
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507 | map = true; |
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508 | b.append("l"); |
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509 | } else if (rawType.equals(List.class)) { |
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510 | containedType = p.getActualTypeArguments()[0]; |
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511 | b.append("l"); |
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512 | } else if (rawType.equals(EventListener.class)) { |
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513 | containedType = p.getActualTypeArguments()[0]; |
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514 | b.append("e"); |
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515 | } else { |
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516 | return induceParamType(builder, rawType); |
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517 | // throw new FramsticksException().msg("unknown raw type").arg("raw type", rawType); |
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518 | } |
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519 | if (!(containedType instanceof Class)) { |
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520 | return builder; |
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521 | } |
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522 | b.append(" "); |
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523 | |
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524 | Class<?> containedClass = (Class<?>) containedType; |
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525 | FramsClassAnnotation fca = containedClass.getAnnotation(FramsClassAnnotation.class); |
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526 | if (fca == null) { |
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527 | throw new ConstructionException().msg("the contained class is not annotated").arg("class", containedClass); |
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528 | } |
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529 | dependantClasses.add(containedClass); |
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530 | b.append(FramsClassBuilder.getName(fca, containedClass)); |
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531 | if (map) { |
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532 | b.append(" uid"); |
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533 | } |
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534 | |
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535 | builder.type(b.toString()); |
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536 | return builder; |
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537 | } |
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538 | |
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539 | if (type instanceof Class) { |
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540 | |
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541 | Class<?> cl = (Class<?>) type; |
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542 | |
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543 | // this is draft implementation of future support for enum |
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544 | // if (cl.isEnum()) { |
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545 | // Class<? extends Enum<?>> enumType = (Class<? extends Enum<?>>) cl; |
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546 | // Enum<?>[] enums = enumType.getEnumConstants(); |
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547 | // StringBuilder b = new StringBuilder(); |
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548 | |
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549 | // b.append("d 0 ").append(enums.length - 1).append(" 0 "); |
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550 | // for (Enum<?> e : enums) { |
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551 | // b.append("~").append(e.name()); |
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552 | // } |
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553 | // return b.toString(); |
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554 | // } |
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555 | if (cl.equals(Integer.class) || cl.equals(int.class)) { |
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556 | builder.type("d"); |
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557 | return builder; |
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558 | } |
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559 | if (cl.equals(String.class)) { |
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560 | builder.type("s"); |
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561 | return builder; |
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562 | } |
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563 | if (cl.equals(Double.class) || cl.equals(double.class)) { |
---|
564 | builder.type("f"); |
---|
565 | return builder; |
---|
566 | } |
---|
567 | if (cl.equals(Boolean.class) || cl.equals(boolean.class)) { |
---|
568 | builder.type( "d 0 1"); |
---|
569 | return builder; |
---|
570 | } |
---|
571 | if (cl.equals(Object.class)) { |
---|
572 | builder.type("x"); |
---|
573 | return builder; |
---|
574 | } |
---|
575 | |
---|
576 | |
---|
577 | // builder.type("o " + (cl).getCanonicalName()); |
---|
578 | builder.type("o " + cl.getSimpleName()); |
---|
579 | dependantClasses.add(cl); |
---|
580 | builder.fillStorageType(cl); |
---|
581 | return builder; |
---|
582 | } |
---|
583 | |
---|
584 | throw new ConstructionException().msg("failed to find framsticks for native type").arg("type", type); |
---|
585 | } |
---|
586 | |
---|
587 | public ParamBuilder induceParamType(ParamBuilder builder) { |
---|
588 | |
---|
589 | if (stringType.has()) { |
---|
590 | return builder.type(stringType.get()); |
---|
591 | } |
---|
592 | |
---|
593 | Method method = getCaller(); |
---|
594 | if (method == null) { |
---|
595 | if (paramType.has()) { |
---|
596 | return builder.type(paramType.get()); |
---|
597 | } |
---|
598 | return induceParamType(builder, getType()); |
---|
599 | } |
---|
600 | |
---|
601 | if (!method.getReturnType().equals(Void.TYPE)) { |
---|
602 | builder.resultType(induceParamType(Param.build(), method.getGenericReturnType()).finish(ValueParam.class)); |
---|
603 | } |
---|
604 | |
---|
605 | List<ValueParam> arguments = new ArrayList<>(); |
---|
606 | int number = 0; |
---|
607 | for (Type arg : method.getGenericParameterTypes()) { |
---|
608 | arguments.add(induceParamType(Param.build(), arg).idAndName("arg" + (number++)).finish(ValueParam.class)); |
---|
609 | } |
---|
610 | builder.argumentsType(arguments); |
---|
611 | |
---|
612 | return builder; |
---|
613 | } |
---|
614 | |
---|
615 | }; |
---|