1 package org.opendaylight.yangtools.sal.java.api.generator
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3 import java.util.Arrays;
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4 import java.util.LinkedHashSet
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5 import java.util.List
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8 import org.opendaylight.yangtools.binding.generator.util.ReferencedTypeImpl
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9 import org.opendaylight.yangtools.binding.generator.util.Types
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10 import org.opendaylight.yangtools.binding.generator.util.generated.type.builder.GeneratedTOBuilderImpl
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11 import org.opendaylight.yangtools.sal.binding.model.api.GeneratedProperty
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12 import org.opendaylight.yangtools.sal.binding.model.api.GeneratedTransferObject
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13 import org.opendaylight.yangtools.sal.binding.model.api.GeneratedType
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14 import org.opendaylight.yangtools.sal.binding.model.api.MethodSignature
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15 import org.opendaylight.yangtools.sal.binding.model.api.Type
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16 import org.opendaylight.yangtools.yang.binding.Augmentable
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17 import static org.opendaylight.yangtools.binding.generator.util.Types.*
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18 import java.util.HashMap
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19 import java.util.Collections
\rimport org.opendaylight.yangtools.yang.binding.DataObject
20 import java.util.ArrayList
23 * Template for generating JAVA builder classes.
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26 class BuilderTemplate extends BaseTemplate {
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29 * Constant with the name of the concrete method.
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31 val static GET_AUGMENTATION_METHOD_NAME = "getAugmentation"
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34 * Constant with the suffix for builder classes.
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36 val static BUILDER = 'Builder'
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39 * Constant with suffix for the classes which are generated from the builder classes.
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41 val static IMPL = 'Impl'
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44 * Generated property is set if among methods is found one with the name GET_AUGMENTATION_METHOD_NAME
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46 var GeneratedProperty augmentField
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49 * Set of class attributes (fields) which are derived from the getter methods names
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51 val Set<GeneratedProperty> properties
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54 * Constructs new instance of this class.
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55 * @throws IllegalArgumentException if <code>genType</code> equals <code>null</code>
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57 new(GeneratedType genType) {
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59 this.properties = propertiesFromMethods(createMethods)
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63 * Returns set of method signature instances which contains all the methods of the <code>genType</code>
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64 * and all the methods of the implemented interfaces.
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66 * @returns set of method signature instances
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68 def private Set<MethodSignature> createMethods() {
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69 val Set<MethodSignature> methods = new LinkedHashSet
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70 methods.addAll(type.methodDefinitions)
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71 collectImplementedMethods(methods, type.implements)
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77 * Adds to the <code>methods</code> set all the methods of the <code>implementedIfcs</code>
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78 * and recursivelly their implemented interfaces.
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80 * @param methods set of method signatures
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81 * @param implementedIfcs list of implemented interfaces
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83 def private void collectImplementedMethods(Set<MethodSignature> methods, List<Type> implementedIfcs) {
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84 if (implementedIfcs == null || implementedIfcs.empty) {
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87 for (implementedIfc : implementedIfcs) {
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88 if ((implementedIfc instanceof GeneratedType && !(implementedIfc instanceof GeneratedTransferObject))) {
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89 val ifc = implementedIfc as GeneratedType
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90 methods.addAll(ifc.methodDefinitions)
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91 collectImplementedMethods(methods, ifc.implements)
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92 } else if (implementedIfc.fullyQualifiedName == Augmentable.name) {
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93 for (m : Augmentable.methods) {
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94 if (m.name == GET_AUGMENTATION_METHOD_NAME) {
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95 //addToImports(JAVA_UTIL, HASH_MAP)
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96 //addToImports(JAVA_UTIL, MAP)
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97 val fullyQualifiedName = m.returnType.name
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98 val pkg = fullyQualifiedName.package
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99 val name = fullyQualifiedName.name
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100 //addToImports(pkg, name)
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101 val tmpGenTO = new GeneratedTOBuilderImpl(pkg, name)
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102 val refType = new ReferencedTypeImpl(pkg, name)
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103 val generic = new ReferencedTypeImpl(type.packageName, type.name)
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104 val parametrizedReturnType = Types.parameterizedTypeFor(refType, generic)
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105 tmpGenTO.addMethod(m.name).setReturnType(parametrizedReturnType)
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106 augmentField = tmpGenTO.toInstance.methodDefinitions.first.propertyFromGetter
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115 * Returns the first element of the list <code>elements</code>.
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117 * @param list of elements
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119 def private <E> first(List<E> elements) {
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124 * Returns the name of the package from <code>fullyQualifiedName</code>.
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126 * @param fullyQualifiedName string with fully qualified type name (package + type)
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127 * @return string with the package name
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129 def private String getPackage(String fullyQualifiedName) {
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130 val lastDotIndex = fullyQualifiedName.lastIndexOf(Constants.DOT)
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131 return if (lastDotIndex == -1) "" else fullyQualifiedName.substring(0, lastDotIndex)
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135 * Returns the name of tye type from <code>fullyQualifiedName</code>
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137 * @param fullyQualifiedName string with fully qualified type name (package + type)
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138 * @return string with the name of the type
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140 def private String getName(String fullyQualifiedName) {
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141 val lastDotIndex = fullyQualifiedName.lastIndexOf(Constants.DOT)
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142 return if (lastDotIndex == -1) fullyQualifiedName else fullyQualifiedName.substring(lastDotIndex + 1)
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147 * Creates set of generated property instances from getter <code>methods</code>.
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149 * @param set of method signature instances which should be transformed to list of properties
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150 * @return set of generated property instances which represents the getter <code>methods</code>
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152 def private propertiesFromMethods(Set<MethodSignature> methods) {
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155 if (methods == null || methods.isEmpty()) {
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156 return Collections.emptySet
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158 val Set<GeneratedProperty> result = new LinkedHashSet
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159 for (m : methods) {
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160 val createdField = m.propertyFromGetter
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161 if (createdField != null) {
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162 result.add(createdField)
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169 * Creates generated property instance from the getter <code>method</code> name and return type.
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171 * @param method method signature from which is the method name and return type obtained
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172 * @return generated property instance for the getter <code>method</code>
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173 * @throws IllegalArgumentException<ul>
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174 * <li>if the <code>method</code> equals <code>null</code></li>
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175 * <li>if the name of the <code>method</code> equals <code>null</code></li>
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176 * <li>if the name of the <code>method</code> is empty</li>
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177 * <li>if the return type of the <code>method</code> equals <code>null</code></li>
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180 def private GeneratedProperty propertyFromGetter(MethodSignature method) {
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182 if (method == null || method.name == null || method.name.empty || method.returnType == null) {
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183 throw new IllegalArgumentException("Method, method name, method return type reference cannot be NULL or empty!")
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185 var prefix = "get";
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186 if(BOOLEAN.equals(method.returnType)) {
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189 if (method.name.startsWith(prefix)) {
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190 val fieldName = method.getName().substring(prefix.length()).toFirstLower
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191 val tmpGenTO = new GeneratedTOBuilderImpl("foo", "foo")
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192 tmpGenTO.addProperty(fieldName).setReturnType(method.returnType)
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193 return tmpGenTO.toInstance.properties.first
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198 * Template method which generates JAVA class body for builder class and for IMPL class.
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200 * @return string with JAVA source code
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202 override body() '''
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204 public class «type.name»«BUILDER» {
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206 «generateFields(false)»
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208 «generateConstructorsFromIfcs(type)»
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210 «generateSetterFromIfcs(type)»
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212 «generateGetters(false)»
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216 public «type.name» build() {
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217 return new «type.name»«IMPL»(this);
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220 private static final class «type.name»«IMPL» implements «type.name» {
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222 «implementedInterfaceGetter»
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224 «generateFields(true)»
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226 «generateConstructor»
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228 «generateGetters(true)»
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230 «generateHashCode()»
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238 def private generateConstructorsFromIfcs(Type type) '''
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239 public «type.name»«BUILDER»() {
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241 «IF (type instanceof GeneratedType && !(type instanceof GeneratedTransferObject))»
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242 «val ifc = type as GeneratedType»
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243 «FOR impl : ifc.implements»
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244 «generateConstructorFromIfc(impl)»
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249 def private generateConstructorFromIfc(Type impl) '''
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250 «IF (impl instanceof GeneratedType) && !((impl as GeneratedType).methodDefinitions.empty)»
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251 «val implType = impl as GeneratedType»
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253 public «type.name»«BUILDER»(«implType.fullyQualifiedName» arg) {
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254 «printConstructorProperties(implType)»
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256 «FOR implTypeImplement : implType.implements»
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257 «generateConstructorFromIfc(implTypeImplement)»
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262 def private printConstructorProperties(Type implementedIfc) '''
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263 «IF (implementedIfc instanceof GeneratedType && !(implementedIfc instanceof GeneratedTransferObject))»
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264 «val ifc = implementedIfc as GeneratedType»
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265 «FOR getter : ifc.methodDefinitions»
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266 this._«getter.propertyNameFromGetter» = arg.«getter.name»();
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268 «FOR impl : ifc.implements»
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269 «printConstructorProperties(impl)»
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274 def private generateSetterFromIfcs(Type type) '''
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275 «IF (type instanceof GeneratedType && !(type instanceof GeneratedTransferObject))»
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276 «val ifc = type as GeneratedType»
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277 «val List<Type> done = new ArrayList()»
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278 public void fieldsFrom(«DataObject.importedName» arg) {
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279 «FOR impl : ifc.implements»
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280 «generateSettersForIfc(impl, done)»
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286 def private generateSettersForIfc(Type impl, List<Type> done) '''
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287 «IF (impl instanceof GeneratedType) && !((impl as GeneratedType).methodDefinitions.empty)»
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288 «val implType = impl as GeneratedType»
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289 «val boolean added = done.contains(impl)»
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291 if (arg instanceof «implType.fullyQualifiedName») {
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292 «printSetterProperties(implType, done)»
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295 «FOR implTypeImplement : implType.implements»
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296 «generateSettersForIfc(implTypeImplement, done)»
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301 def private printSetterProperties(Type implementedIfc, List<Type> done) '''
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302 «IF (implementedIfc instanceof GeneratedType && !(implementedIfc instanceof GeneratedTransferObject))»
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303 «val ifc = implementedIfc as GeneratedType»
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304 «val boolean added = done.contains(ifc)»
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306 «FOR getter : ifc.methodDefinitions»
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307 this._«getter.propertyNameFromGetter» = ((«implementedIfc.fullyQualifiedName»)arg).«getter.name»();
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309 «val add = done.add(ifc)»
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311 «FOR impl : ifc.implements»
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312 «printSetterProperties(impl, done)»
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318 * Template method which generates class attributes.
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320 * @param boolean value which specify whether field is|isn't final
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321 * @return string with class attributes and their types
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323 def private generateFields(boolean _final) '''
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324 «IF !properties.empty»
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325 «FOR f : properties»
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326 private «IF _final»final«ENDIF» «f.returnType.importedName» «f.fieldName»;
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329 «IF augmentField != null»
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330 private «Map.importedName»<Class<? extends «augmentField.returnType.importedName»>, «augmentField.returnType.importedName»> «augmentField.name» = new «HashMap.importedName»<>();
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335 * Template method which generates setter methods
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337 * @return string with the setter methods
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339 def private generateSetters() '''
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340 «FOR field : properties SEPARATOR '\n'»
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341 public «type.name»«BUILDER» set«field.name.toFirstUpper»(«field.returnType.importedName» value) {
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342 «generateLengthRestrictions(field.returnType, "value")»
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344 this.«field.fieldName» = value;
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348 «IF augmentField != null»
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350 public «type.name»«BUILDER» add«augmentField.name.toFirstUpper»(Class<? extends «augmentField.returnType.importedName»> augmentationType, «augmentField.returnType.importedName» augmentation) {
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351 this.«augmentField.name».put(augmentationType, augmentation);
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358 * Template method which generate constructor for IMPL class.
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360 * @return string with IMPL class constructor
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362 def private generateConstructor() '''
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363 private «type.name»«IMPL»(«type.name»«BUILDER» builder) {
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364 «IF !properties.empty»
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365 «FOR field : properties»
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366 this.«field.fieldName» = builder.«field.getterMethodName»();
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369 «IF augmentField != null»
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370 this.«augmentField.name».putAll(builder.«augmentField.name»);
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377 * Template method which generate getter methods for IMPL class.
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379 * @return string with getter methods
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381 def private generateGetters(boolean addOverride) '''
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382 «IF !properties.empty»
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383 «FOR field : properties SEPARATOR '\n'»
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384 «IF addOverride»@Override«ENDIF»
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385 «field.getterMethod»
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388 «IF augmentField != null»
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390 @SuppressWarnings("unchecked")
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391 «IF addOverride»@Override«ENDIF»
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392 public <E extends «augmentField.returnType.importedName»> E get«augmentField.name.toFirstUpper»(Class<E> augmentationType) {
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393 if (augmentationType == null) {
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394 throw new IllegalArgumentException("Augmentation Type reference cannot be NULL!");
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396 return (E) «augmentField.name».get(augmentationType);
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402 * Template method which generates the method <code>hashCode()</code>.
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404 * @return string with the <code>hashCode()</code> method definition in JAVA format
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406 def protected generateHashCode() '''
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407 «IF !properties.empty || augmentField != null»
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409 public int hashCode() {
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410 final int prime = 31;
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412 «FOR property : properties»
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413 «IF property.returnType.name.contains("[")»
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414 result = prime * result + ((«property.fieldName» == null) ? 0 : «Arrays.importedName».hashCode(«property.fieldName»));
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416 result = prime * result + ((«property.fieldName» == null) ? 0 : «property.fieldName».hashCode());
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419 «IF augmentField != null»
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420 result = prime * result + ((«augmentField.name» == null) ? 0 : «augmentField.name».hashCode());
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428 * Template method which generates the method <code>equals()</code>.
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430 * @return string with the <code>equals()</code> method definition in JAVA format
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432 def protected generateEquals() '''
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433 «IF !properties.empty || augmentField != null»
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435 public boolean equals(java.lang.Object obj) {
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442 if (getClass() != obj.getClass()) {
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445 «type.name»«IMPL» other = («type.name»«IMPL») obj;
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446 «FOR property : properties»
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447 «val fieldName = property.fieldName»
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448 if («fieldName» == null) {
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449 if (other.«fieldName» != null) {
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452 «IF property.returnType.name.contains("[")»
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453 } else if(!«Arrays.importedName».equals(«fieldName», other.«fieldName»)) {
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455 } else if(!«fieldName».equals(other.«fieldName»)) {
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460 «IF augmentField != null»
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461 «val fieldName = augmentField.name»
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462 if («fieldName» == null) {
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463 if (other.«fieldName» != null) {
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466 } else if(!«fieldName».equals(other.«fieldName»)) {
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475 override protected getFullyQualifiedName() {
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476 '''«type.fullyQualifiedName»Builder'''.toString
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479 def implementedInterfaceGetter() '''
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480 public «Class.importedName»<«type.importedName»> getImplementedInterface() {
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481 return «type.importedName».class;
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