List of usage examples for com.google.gwt.core.ext.typeinfo JClassType getConstructor
JConstructor getConstructor(JType[] paramTypes) throws NotFoundException;
From source file:com.artemis.gwtref.gen.ReflectionCacheSourceCreator.java
License:Apache License
private static boolean isInstantiableWithNewOperator(JClassType t) { if (!t.isDefaultInstantiable() || t instanceof JArrayType || t instanceof JEnumType) return false; try {//from w w w . j a va2 s .c o m JConstructor constructor = t.getConstructor(new JType[0]); return constructor != null && constructor.isPublic(); } catch (NotFoundException e) { return false; } }
From source file:com.guit.rebind.jsorm.JsonSerializerUtil.java
License:Apache License
public static String generate(TreeLogger logger, GeneratorContext context, JClassType pojoType) throws UnableToCompleteException { JsonSerializerUtil.logger = logger;//from www.jav a2s. c o m // We cannot serialize java.lang.Object String pojoQualifiedName = pojoType.getQualifiedSourceName(); if (pojoQualifiedName.equals(Object.class.getCanonicalName())) { error("You cannot serialize Object... we either"); } if (exceptions == null) { exceptions = new HashMap<String, String>(); try { List<String> ormExceptions = context.getPropertyOracle() .getConfigurationProperty("json.orm.exception").getValues(); for (String e : ormExceptions) { String[] parts = e.split(" "); if (parts.length != 2) { error("Bad json orm exception format. i.e 'java.util.List java.util.ArrayList<%s>. Found: %s'", e); } exceptions.put(parts[0], parts[1]); } } catch (BadPropertyValueException e) { throw new IllegalStateException(e); } } String parameterizedQualifiedSourceName = pojoType.getParameterizedQualifiedSourceName(); String typeName = parameterizedQualifiedSourceName; // Basic types if (typeName.equals(Void.class.getCanonicalName())) { return VoidSerializer.class.getCanonicalName(); } else if (typeName.equals(String.class.getCanonicalName())) { return StringSerializer.class.getCanonicalName(); } else if (typeName.equals(Integer.class.getCanonicalName())) { return IntegerSerializer.class.getCanonicalName(); } else if (typeName.equals(Long.class.getCanonicalName())) { return LongSerializer.class.getCanonicalName(); } else if (typeName.equals(Double.class.getCanonicalName())) { return DoubleSerializer.class.getCanonicalName(); } else if (typeName.equals(Float.class.getCanonicalName())) { return FloatSerializer.class.getCanonicalName(); } else if (typeName.equals(Date.class.getCanonicalName())) { return DateSerializer.class.getCanonicalName(); } else if (typeName.equals(Boolean.class.getCanonicalName())) { return BooleanSerializer.class.getCanonicalName(); } // Build name avoiding generics collitions StringBuilder implName = new StringBuilder(); makeImplName(pojoType, implName); implName.append("_GuitJsonSerializer"); String packageName = pojoType.getPackage().getName(); if (packageName.startsWith("java.")) { packageName = "com.guit.java." + packageName.substring(5); } String implNameString = implName.toString(); if (getClass(packageName, implNameString)) { return packageName + "." + implNameString; } ClassSourceFileComposerFactory composer = new ClassSourceFileComposerFactory(packageName, implNameString); composer.addImplementedInterface(TypeJsonSerializer.class.getCanonicalName() + "<" + typeName + ">"); PrintWriter printWriter = context.tryCreate(logger, packageName, implNameString); String createdName = composer.getCreatedClassName(); if (printWriter != null) { SourceWriter writer = composer.createSourceWriter(context, printWriter); JType iterableParameterType = null; JPrimitiveType iterableParameterPrimitiveType = null; // Iterable JGenericType iterableType = context.getTypeOracle().findType(Iterable.class.getCanonicalName()) .isGenericType(); boolean isIterable = false; if (iterableType.isAssignableFrom(pojoType)) { isIterable = true; iterableParameterType = pojoType.asParameterizationOf(iterableType).getTypeArgs()[0]; iterableParameterPrimitiveType = iterableParameterType.isPrimitive(); // Find if theres any exception String qualifiedSourceName = pojoQualifiedName; if (exceptions.containsKey(qualifiedSourceName)) { parameterizedQualifiedSourceName = exceptions.get(qualifiedSourceName) + "<" + iterableParameterType.getParameterizedQualifiedSourceName() + ">"; } } // Map JGenericType mapType = context.getTypeOracle().findType(Map.class.getCanonicalName()).isGenericType(); boolean isMap = false; JClassType mapKeyType = null; JClassType mapValueType = null; if (mapType.isAssignableFrom(pojoType)) { isMap = true; JParameterizedType pojoMap = pojoType.asParameterizationOf(mapType); JClassType[] args = pojoMap.getTypeArgs(); mapKeyType = args[0]; mapValueType = args[1]; // Find if theres any exception String qualifiedSourceName = pojoQualifiedName; if (exceptions.containsKey(qualifiedSourceName)) { parameterizedQualifiedSourceName = exceptions.get(qualifiedSourceName) + "<" + mapKeyType.getParameterizedQualifiedSourceName() + "," + mapValueType.getParameterizedQualifiedSourceName() + ">"; } } // Array boolean isArray = false; JArrayType pojoArray = pojoType.isArray(); if (pojoArray != null) { isArray = true; iterableParameterType = pojoArray.getComponentType(); iterableParameterPrimitiveType = iterableParameterType.isPrimitive(); } // For pojos ArrayList<JField> fields = null; writer.println("public static " + createdName + " singleton;"); writer.println("public static " + createdName + " getSingleton() {"); writer.indent(); writer.println("return singleton == null ? (singleton = new " + createdName + "()) : singleton;"); writer.outdent(); writer.println("}"); writer.println("@Override"); writer.println("public " + JSONValue.class.getCanonicalName() + " serialize(" + typeName + " data) {"); writer.indent(); if (isMap) { writer.println("if (data != null) {"); writer.indent(); writer.println(JSONArray.class.getCanonicalName() + " array = new " + JSONArray.class.getCanonicalName() + "();"); writer.println("int n = 0;"); writer.println("for (" + Entry.class.getCanonicalName() + "<" + mapKeyType.getParameterizedQualifiedSourceName() + ", " + mapValueType.getParameterizedQualifiedSourceName() + ">" + " entry : data.entrySet()) {"); writer.indent(); writer.print("array.set(n, "); JPrimitiveType mapKeyPrimitive = mapKeyType.isPrimitive(); if (mapKeyPrimitive == null) { printValueSerialized(logger, context, writer, "entry.getKey()", mapKeyType, pojoType); } else { printPrimitiveSerialized(typeName, writer, "entry.getKey()", mapKeyPrimitive); } writer.println(");"); writer.println("n++;"); writer.print("array.set(n, "); JPrimitiveType mapValuePrimitive = mapValueType.isPrimitive(); if (mapValuePrimitive == null) { printValueSerialized(logger, context, writer, "entry.getValue()", mapValueType, pojoType); } else { printPrimitiveSerialized(typeName, writer, "entry.getValue()", mapValuePrimitive); } writer.println(");"); writer.println("n++;"); writer.outdent(); writer.println("}"); writer.println("return array;"); writer.outdent(); writer.println("}"); writer.println("return " + JSONNull.class.getCanonicalName() + ".getInstance();"); } else if (isIterable || isArray) { writer.println("if (data != null) {"); writer.indent(); writer.println(JSONArray.class.getCanonicalName() + " array = new " + JSONArray.class.getCanonicalName() + "();"); writer.println("int n = 0;"); writer.println( "for (" + iterableParameterType.getParameterizedQualifiedSourceName() + " item : data) {"); writer.indent(); writer.print("array.set(n, "); if (iterableParameterPrimitiveType == null) { printValueSerialized(logger, context, writer, "item", iterableParameterType, pojoType); } else { printPrimitiveSerialized(typeName, writer, "item", iterableParameterPrimitiveType); } writer.println(");"); writer.println("n++;"); writer.outdent(); writer.println("}"); writer.println("return array;"); writer.outdent(); writer.println("}"); writer.println("return " + JSONNull.class.getCanonicalName() + ".getInstance();"); } else if (pojoType.isEnum() != null) { writer.println("if (data != null) {"); writer.indent(); writer.println("return new " + JSONString.class.getCanonicalName() + "(data.name());"); writer.outdent(); writer.println("}"); writer.println("return " + JSONNull.class.getCanonicalName() + ".getInstance();"); } else { // Assert the type have an empty constructor try { pojoType.getConstructor(emptyParameter); } catch (NotFoundException e) { error("The data type of the place does not have an empty constructor. Found %s", typeName); } writer.println(jsonObject + " json = new " + jsonObject + "();"); fields = new ArrayList<JField>(); getFields(fields, pojoType); for (JField f : fields) { String fieldName = f.getName(); String getterName = fieldName.substring(0, 1).toUpperCase() + fieldName.substring(1); JType fieldType = f.getType(); JPrimitiveType primitive = fieldType.isPrimitive(); String fieldTypeQualifiedType = fieldType.getQualifiedSourceName(); if (primitive != null) { writer.print("json.put(\"" + fieldName + "\","); printPrimitiveSerialized(typeName, writer, "get" + getterName + "(data)", primitive); writer.println(");"); } else { writer.println( fieldTypeQualifiedType + " " + fieldName + " = get" + getterName + "(data);"); writer.println("if (" + fieldName + " != null) {"); writer.indent(); writer.print("json.put(\"" + fieldName + "\","); printValueSerialized(logger, context, writer, fieldName, fieldType, pojoType); writer.println(");"); writer.outdent(); writer.println("}"); } } writer.println("return json;"); } writer.outdent(); writer.println("}"); // Getters and setters printJsniGettersAndSetters(writer, pojoType); writer.println("@Override"); writer.println( "public " + typeName + " deserialize(" + JSONValue.class.getCanonicalName() + " jsonValue) {"); writer.indent(); if (isMap) { writer.println("if (jsonValue.isNull() == null) {"); writer.indent(); writer.println(JSONArray.class.getCanonicalName() + " jsonArray = jsonValue.isArray();"); writer.println("int jsonArraySize = jsonArray.size();"); writer.println(parameterizedQualifiedSourceName + " map = new " + parameterizedQualifiedSourceName + "();"); writer.println("for (int n = 0; n < jsonArraySize; n+=2) {"); writer.indent(); writer.println(JSONValue.class.getCanonicalName() + " key = jsonArray.get(n);"); writer.println(JSONValue.class.getCanonicalName() + " value = jsonArray.get(n + 1);"); writer.print("map.put("); JPrimitiveType mapKeyPrimitive = mapKeyType.isPrimitive(); if (mapKeyPrimitive == null) { printValueDeserialized(logger, context, writer, "key", mapKeyType); } else { printPrimitiveDeserialized(typeName, writer, "key", mapKeyPrimitive); } writer.print(","); JPrimitiveType mapValuePrimitive = mapValueType.isPrimitive(); if (mapValuePrimitive == null) { printValueDeserialized(logger, context, writer, "value", mapValueType); } else { printPrimitiveDeserialized(typeName, writer, "value", mapValuePrimitive); } writer.println(");"); writer.outdent(); writer.println("}"); writer.println("return map;"); writer.outdent(); writer.println("} else { return null; }"); } else if (isIterable || isArray) { writer.println("if (jsonValue.isNull() == null) {"); writer.indent(); writer.println(JSONArray.class.getCanonicalName() + " jsonArray = jsonValue.isArray();"); writer.println("int jsonArraySize = jsonArray.size();"); if (isIterable) { writer.println(parameterizedQualifiedSourceName + " array = new " + parameterizedQualifiedSourceName + "();"); } else { JArrayType array = iterableParameterType.isArray(); if (array != null) { String arrayName = array.getQualifiedSourceName() + "[]"; int index = arrayName.indexOf("["); String arrayDeclaration = arrayName.substring(0, index + 1) + "jsonArraySize" + arrayName.substring(index + 1); writer.println(arrayName + " array = new " + arrayDeclaration + ";"); } else { String parameterQualifiedName = iterableParameterType.getQualifiedSourceName(); writer.println(parameterQualifiedName + "[] array = new " + parameterQualifiedName + "[jsonArraySize];"); } } writer.println("for (int n = 0; n < jsonArraySize; n++) {"); writer.indent(); writer.println(JSONValue.class.getCanonicalName() + " item = jsonArray.get(n);"); if (isIterable) { writer.print("array.add("); } else { writer.print("array[n] = "); } if (iterableParameterPrimitiveType == null) { printValueDeserialized(logger, context, writer, "item", iterableParameterType); } else { printPrimitiveDeserialized(typeName, writer, "item", iterableParameterPrimitiveType); } if (isIterable) { writer.println(");"); } else { writer.println(";"); } writer.outdent(); writer.println("}"); writer.println("return array;"); writer.outdent(); writer.println("} else { return null; }"); } else if (pojoType.isEnum() != null) { writer.println("if (jsonValue.isNull() == null) {"); writer.indent(); writer.println("return " + typeName + ".valueOf(jsonValue.isString().stringValue());"); writer.outdent(); writer.println("} else { return null; }"); } else { // Assert the type have an empty constructor try { pojoType.getConstructor(emptyParameter); } catch (NotFoundException e) { error("The data type of the place does not have an empty constructor. Found %s", typeName); } writer.println(JSONObject.class.getCanonicalName() + " json = jsonValue.isObject();"); writer.println(typeName + " instance = new " + typeName + "();"); for (JField f : fields) { String fieldName = f.getName(); String setterName = fieldName.substring(0, 1).toUpperCase() + fieldName.substring(1); JType fieldType = f.getType(); JPrimitiveType primitive = fieldType.isPrimitive(); if (primitive != null) { writer.print("set" + setterName + "(instance,"); printPrimitiveDeserialized(typeName, writer, "json.get(\"" + fieldName + "\")", primitive); writer.println(");"); } else { writer.println("if (json.containsKey(\"" + fieldName + "\")) {"); writer.indent(); writer.print("set" + setterName + "(instance,"); printValueDeserialized(logger, context, writer, "json.get(\"" + fieldName + "\")", fieldType); writer.println(");"); writer.outdent(); writer.println("}"); } } writer.println("return instance;"); } writer.outdent(); writer.println("}"); writer.commit(logger); } return createdName; }
From source file:com.seanchenxi.resteasy.autobean.generator.ThrowableFactoryGenerator.java
License:Apache License
private HashSet<String> getAllThrowableTypes(TypeOracle oracle, TreeLogger logger) { HashSet<String> set = new HashSet<String>(); try {//from www. j av a 2 s . c o m JType[] params = new JType[1]; params[0] = oracle.parse("java.lang.String"); JClassType[] svcTypes = oracle.getType(RESTService.class.getName()).getSubtypes(); for (JClassType type : svcTypes) { for (JMethod method : type.getMethods()) { for (JClassType throwable : method.getThrows()) { if (null != throwable.getConstructor(params)) set.add(throwable.getQualifiedSourceName()); else logger.log(Type.WARN, throwable.getQualifiedSourceName() + " will be ignored for serialization, it must at least have a constructor with string type message as parameter."); } } } } catch (Exception e) { logger.log(Type.ERROR, e.getMessage(), e); } set.addAll(THROWABLES); return set; }
From source file:org.jboss.errai.bus.rebind.BusClientConfigGenerator.java
License:Apache License
private void generateMarshaller(JClassType visit, TreeLogger logger, SourceWriter writer) { Boolean enumType = visit.isEnum() != null; Map<String, Class> types = new HashMap<String, Class>(); Map<String, ValueExtractor> getters = new HashMap<String, ValueExtractor>(); Map<String, ValueBinder> setters = new HashMap<String, ValueBinder>(); Map<Class, Integer> arrayConverters = new HashMap<Class, Integer>(); try {/*from w ww . ja v a 2 s . c o m*/ JClassType scan = visit; do { for (JField f : scan.getFields()) { if (f.isTransient() || f.isStatic() || f.isEnumConstant() != null) continue; JClassType type = f.getType().isClassOrInterface(); JMethod getterMeth; JMethod setterMeth; if (type == null) { JPrimitiveType pType = f.getType().isPrimitive(); Class c; if (pType == null) { JArrayType aType = f.getType().isArray(); if (aType == null) continue; String name = aType.getQualifiedBinaryName(); int depth = 0; for (int i = 0; i < name.length(); i++) { if (name.charAt(i) == '[') depth++; else break; } types.put(f.getName(), c = Class.forName(name.substring(0, depth) + getInternalRep(aType.getQualifiedBinaryName().substring(depth)))); arrayConverters.put(c, depth); } else { types.put(f.getName(), c = ParseTools .unboxPrimitive(Class.forName(pType.getQualifiedBoxedSourceName()))); } } else { types.put(f.getName(), Class.forName(type.getQualifiedBinaryName())); } getterMeth = getAccessorMethod(visit, f); setterMeth = getSetterMethod(visit, f); if (getterMeth == null) { if (f.isPublic()) { getters.put(f.getName(), new ValueExtractor(f)); } else if (visit == scan) { throw new GenerationException("could not find a read accessor in class: " + visit.getQualifiedSourceName() + "; for field: " + f.getName() + "; should declare an accessor: " + ReflectionUtil.getGetter(f.getName())); } } else { getters.put(f.getName(), new ValueExtractor(getterMeth)); } if (setterMeth == null) { if (f.isPublic()) { setters.put(f.getName(), new ValueBinder(f)); } else if (visit == scan) { throw new GenerationException("could not find a write accessor in class: " + visit.getQualifiedSourceName() + "; for field: " + f.getName() + "; should declare an accessor: " + ReflectionUtil.getSetter(f.getName())); } } else { setters.put(f.getName(), new ValueBinder(setterMeth)); } } } while ((scan = scan.getSuperclass()) != null && !scan.getQualifiedSourceName().equals("java.lang.Object")); } catch (ClassNotFoundException e) { e.printStackTrace(); throw new RuntimeException(e); } try { if (!enumType) visit.getConstructor(new JClassType[0]); } catch (NotFoundException e) { String errorMsg = "Type marked for serialization does not expose a default constructor: " + visit.getQualifiedSourceName(); logger.log(TreeLogger.Type.ERROR, errorMsg, e); throw new GenerationException(errorMsg, e); } Map<String, Object> templateVars = Make.Map.<String, Object>$() ._("className", visit.getQualifiedSourceName()) ._("canonicalClassName", visit.getQualifiedBinaryName())._("fields", types.keySet()) ._("targetTypes", types)._("getters", getters)._("setters", setters) ._("arrayConverters", arrayConverters)._("enumType", enumType)._(); String genStr; writer.print(genStr = (String) execute(demarshallerGenerator, templateVars)); log.debug("generated demarshaller: \n" + genStr); logger.log(TreeLogger.Type.INFO, genStr); writer.print(genStr = (String) execute(marshallerGenerator, templateVars)); log.debug("generated marshaller: \n" + genStr); logger.log(TreeLogger.Type.INFO, genStr); logger.log(TreeLogger.Type.INFO, "Generated marshaller/demarshaller for: " + visit.getName()); }