| /* |
| * Copyright 2008 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.user.rebind.rpc; |
| |
| import com.google.gwt.core.client.UnsafeNativeLong; |
| import com.google.gwt.core.client.impl.WeakMapping; |
| import com.google.gwt.core.ext.GeneratorContext; |
| import com.google.gwt.core.ext.TreeLogger; |
| import com.google.gwt.core.ext.typeinfo.JArrayType; |
| import com.google.gwt.core.ext.typeinfo.JClassType; |
| import com.google.gwt.core.ext.typeinfo.JConstructor; |
| import com.google.gwt.core.ext.typeinfo.JEnumType; |
| import com.google.gwt.core.ext.typeinfo.JField; |
| import com.google.gwt.core.ext.typeinfo.JMethod; |
| import com.google.gwt.core.ext.typeinfo.JPrimitiveType; |
| import com.google.gwt.core.ext.typeinfo.JType; |
| import com.google.gwt.core.ext.typeinfo.JTypeParameter; |
| import com.google.gwt.core.ext.typeinfo.TypeOracle; |
| import com.google.gwt.dev.javac.TypeOracleMediator; |
| import com.google.gwt.user.client.rpc.SerializationException; |
| import com.google.gwt.user.client.rpc.SerializationStreamReader; |
| import com.google.gwt.user.client.rpc.SerializationStreamWriter; |
| import com.google.gwt.user.client.rpc.core.java.lang.Object_Array_CustomFieldSerializer; |
| import com.google.gwt.user.client.rpc.impl.TypeHandler; |
| import com.google.gwt.user.rebind.ClassSourceFileComposerFactory; |
| import com.google.gwt.user.rebind.SourceWriter; |
| |
| import java.io.PrintWriter; |
| |
| /** |
| * Creates a field serializer for a class that implements |
| * {@link com.google.gwt.user.client.rpc.IsSerializable IsSerializable} or |
| * {@link java.io.Serializable Serializable}. The field serializer is emitted |
| * into the same package as the class that it serializes. |
| * |
| * TODO(mmendez): Need to make the generated field serializers final |
| * TODO(mmendez): Would be nice to be able to have imports, rather than using |
| * fully qualified type names everywhere |
| */ |
| public class FieldSerializerCreator { |
| |
| private static final String WEAK_MAPPING_CLASS_NAME = WeakMapping.class.getName(); |
| |
| private final JClassType customFieldSerializer; |
| |
| private final boolean customFieldSerializerHasInstantiate; |
| |
| private final String fieldSerializerName; |
| |
| private final boolean isJRE; |
| |
| private final JClassType serializableClass; |
| |
| private final JField[] serializableFields; |
| |
| private SourceWriter sourceWriter; |
| |
| private final SerializableTypeOracle typesSentFromBrowser; |
| |
| private final SerializableTypeOracle typesSentToBrowser; |
| |
| private final TypeOracle typeOracle; |
| |
| /** |
| * Constructs a field serializer for the class. |
| */ |
| public FieldSerializerCreator(TypeOracle typeOracle, |
| SerializableTypeOracle typesSentFromBrowser, |
| SerializableTypeOracle typesSentToBrowser, JClassType requestedClass, |
| JClassType customFieldSerializer) { |
| this.customFieldSerializer = customFieldSerializer; |
| assert (requestedClass != null); |
| assert (requestedClass.isClass() != null || requestedClass.isArray() != null); |
| |
| this.typeOracle = typeOracle; |
| this.typesSentFromBrowser = typesSentFromBrowser; |
| this.typesSentToBrowser = typesSentToBrowser; |
| serializableClass = requestedClass; |
| serializableFields = SerializationUtils.getSerializableFields(typeOracle, |
| requestedClass); |
| this.fieldSerializerName = SerializationUtils.getStandardSerializerName(serializableClass); |
| this.isJRE = SerializableTypeOracleBuilder.isInStandardJavaPackage(serializableClass.getQualifiedSourceName()); |
| this.customFieldSerializerHasInstantiate = (customFieldSerializer != null && CustomFieldSerializerValidator.hasInstantiationMethod( |
| customFieldSerializer, serializableClass)); |
| } |
| |
| public String realize(TreeLogger logger, GeneratorContext ctx) { |
| assert (ctx != null); |
| assert (typesSentFromBrowser.isSerializable(serializableClass) || typesSentToBrowser.isSerializable(serializableClass)); |
| |
| logger = logger.branch(TreeLogger.DEBUG, |
| "Generating a field serializer for type '" |
| + serializableClass.getQualifiedSourceName() + "'", null); |
| |
| sourceWriter = getSourceWriter(logger, ctx); |
| if (sourceWriter == null) { |
| return fieldSerializerName; |
| } |
| assert sourceWriter != null; |
| |
| maybeWriteTypeHandlerClass(); |
| |
| writeFieldAccessors(); |
| |
| writeConcreteTypeMethod(); |
| |
| writeDeserializeMethod(); |
| |
| maybeWriteInstatiateMethod(); |
| |
| writeSerializeMethod(); |
| |
| sourceWriter.commit(logger); |
| |
| return fieldSerializerName; |
| } |
| |
| private boolean classIsAccessible() { |
| JClassType testClass = serializableClass; |
| while (testClass != null) { |
| if (testClass.isPrivate() || (isJRE && !testClass.isPublic())) { |
| return false; |
| } |
| testClass = testClass.getEnclosingType(); |
| } |
| return true; |
| } |
| |
| private String createArrayInstantiationExpression(JArrayType array) { |
| StringBuilder sb = new StringBuilder(); |
| |
| sb.append("new "); |
| sb.append(array.getLeafType().getQualifiedSourceName()); |
| sb.append("[size]"); |
| for (int i = 0; i < array.getRank() - 1; ++i) { |
| sb.append("[]"); |
| } |
| |
| return sb.toString(); |
| } |
| |
| private boolean ctorIsAccessible() { |
| JConstructor ctor = serializableClass.findConstructor(new JType[0]); |
| if (ctor.isPrivate() || (isJRE && !ctor.isPublic())) { |
| return false; |
| } |
| return true; |
| } |
| |
| /** |
| * Returns the depth of the given class in the class hierarchy |
| * (where the depth of java.lang.Object == 0). |
| */ |
| private int getDepth(JClassType clazz) { |
| int depth = 0; |
| while ((clazz = clazz.getSuperclass()) != null) { |
| depth++; |
| } |
| return depth; |
| } |
| |
| private SourceWriter getSourceWriter(TreeLogger logger, GeneratorContext ctx) { |
| int packageNameEnd = fieldSerializerName.lastIndexOf('.'); |
| String className; |
| String packageName; |
| if (packageNameEnd != -1) { |
| className = fieldSerializerName.substring(packageNameEnd + 1); |
| packageName = fieldSerializerName.substring(0, packageNameEnd); |
| } else { |
| className = fieldSerializerName; |
| packageName = ""; |
| } |
| |
| PrintWriter printWriter = ctx.tryCreate(logger, packageName, className); |
| if (printWriter == null) { |
| return null; |
| } |
| |
| ClassSourceFileComposerFactory composerFactory = new ClassSourceFileComposerFactory( |
| packageName, className); |
| composerFactory.addImport(SerializationException.class.getCanonicalName()); |
| composerFactory.addImport(SerializationStreamReader.class.getCanonicalName()); |
| composerFactory.addImport(SerializationStreamWriter.class.getCanonicalName()); |
| composerFactory.addAnnotationDeclaration("@SuppressWarnings(\"deprecation\")"); |
| return composerFactory.createSourceWriter(ctx, printWriter); |
| } |
| |
| private String getTypeSig(JMethod deserializationMethod) { |
| JTypeParameter[] typeParameters = deserializationMethod.getTypeParameters(); |
| String typeSig = ""; |
| if (typeParameters.length > 0) { |
| StringBuilder sb = new StringBuilder(); |
| sb.append('<'); |
| for (JTypeParameter typeParameter : typeParameters) { |
| sb.append(typeParameter.getFirstBound().getQualifiedSourceName()); |
| sb.append(','); |
| } |
| sb.setCharAt(sb.length() - 1, '>'); |
| typeSig = sb.toString(); |
| } |
| return typeSig; |
| } |
| |
| private void maybeSuppressLongWarnings(JType fieldType) { |
| if (fieldType == JPrimitiveType.LONG) { |
| /** |
| * Accessing long from JSNI causes a error, but field serializers need to |
| * be able to do just that in order to bypass java accessibility |
| * restrictions. |
| */ |
| sourceWriter.println("@" + UnsafeNativeLong.class.getName()); |
| } |
| } |
| |
| /** |
| * Writes an instantiate method. Examples: |
| * |
| * <h2>Class</h2> |
| * |
| * <pre> |
| * public static com.google.gwt.sample.client.Student instantiate( |
| * SerializationStreamReader streamReader) throws SerializationException { |
| * return new com.google.gwt.sample.client.Student(); |
| * } |
| * </pre> |
| * |
| * <h2>Class with private ctor</h2> |
| * |
| * <pre> |
| * public static native com.google.gwt.sample.client.Student instantiate( |
| * SerializationStreamReader streamReader) throws SerializationException /*-{ |
| * return @com.google.gwt.sample.client.Student::new()(); |
| * }-*/; |
| * </pre> |
| * |
| * <h2>Array</h2> |
| * |
| * <pre> |
| * public static com.google.gwt.sample.client.Student[] instantiate( |
| * SerializationStreamReader streamReader) throws SerializationException { |
| * int size = streamReader.readInt(); |
| * return new com.google.gwt.sample.client.Student[size]; |
| * } |
| * </pre> |
| * |
| * <h2>Enum</h2> |
| * |
| * <pre> |
| * public static com.google.gwt.sample.client.Role instantiate( |
| * SerializationStreamReader streamReader) throws SerializationException { |
| * int ordinal = streamReader.readInt(); |
| * com.google.gwt.sample.client.Role[] values = com.google.gwt.sample.client.Role.values(); |
| * assert (ordinal >= 0 && ordinal < values.length); |
| * return values[ordinal]; |
| * } |
| * </pre> |
| */ |
| private void maybeWriteInstatiateMethod() { |
| if (serializableClass.isEnum() == null |
| && (serializableClass.isAbstract() || !serializableClass.isDefaultInstantiable())) { |
| /* |
| * Field serializers are shared by all of the RemoteService proxies in a |
| * compilation. Therefore, we have to generate an instantiate method even |
| * if the type is not instantiable relative to the RemoteService which |
| * caused this field serializer to be created. If the type is not |
| * instantiable relative to any of the RemoteService proxies, dead code |
| * optimizations will cause the method to be removed from the compiled |
| * output. |
| * |
| * Enumerated types require an instantiate method even if they are |
| * abstract. You will have an abstract enum in cases where the enum type |
| * is sub-classed. Non-default instantiable classes cannot have |
| * instantiate methods. |
| */ |
| return; |
| } |
| |
| if (customFieldSerializerHasInstantiate) { |
| // The custom field serializer already defined it. |
| return; |
| } |
| |
| JArrayType isArray = serializableClass.isArray(); |
| JEnumType isEnum = serializableClass.isEnum(); |
| JClassType isClass = serializableClass.isClass(); |
| |
| boolean useViolator = false; |
| if (isEnum == null && isClass != null) { |
| useViolator = !classIsAccessible() || !ctorIsAccessible(); |
| } |
| |
| sourceWriter.print("public static" + (useViolator ? " native " : " ")); |
| String qualifiedSourceName = serializableClass.getQualifiedSourceName(); |
| sourceWriter.print(qualifiedSourceName); |
| sourceWriter.println(" instantiate(SerializationStreamReader streamReader) throws SerializationException " |
| + (useViolator ? "/*-{" : "{")); |
| sourceWriter.indent(); |
| |
| if (isArray != null) { |
| sourceWriter.println("int size = streamReader.readInt();"); |
| sourceWriter.println("return " |
| + createArrayInstantiationExpression(isArray) + ";"); |
| } else if (isEnum != null) { |
| sourceWriter.println("int ordinal = streamReader.readInt();"); |
| sourceWriter.println(qualifiedSourceName + "[] values = " |
| + qualifiedSourceName + ".values();"); |
| sourceWriter.println("assert (ordinal >= 0 && ordinal < values.length);"); |
| sourceWriter.println("return values[ordinal];"); |
| } else if (useViolator) { |
| sourceWriter.println("return @" + qualifiedSourceName + "::new()();"); |
| } else { |
| sourceWriter.println("return new " + qualifiedSourceName + "();"); |
| } |
| |
| sourceWriter.outdent(); |
| sourceWriter.println(useViolator ? "}-*/;" : "}"); |
| sourceWriter.println(); |
| } |
| |
| /** |
| * Write a {@link TypeHandler} for the class, used by Java. |
| * |
| * <pre> |
| * public static class Handler implements |
| * com.google.gwt.user.client.rpc.impl.TypeHandler { |
| * public void deserialize(SerializationStreamReader reader, Object object) |
| * throws SerializationException { |
| * com.google.gwt.sample.client.Student_FieldSerializer.deserialize( |
| * reader, (com.google.gwt.sample.client.Student) object); |
| * } |
| * |
| * public Object instantiate(SerializationStreamReader reader) |
| * throws SerializationException { |
| * return com.google.gwt.sample.client.Student_FieldSerializer.instantiate(reader); |
| * } |
| * |
| * public void serialize(SerializationStreamWriter writer, Object object) |
| * throws SerializationException { |
| * com.google.gwt.sample.client.Student_FieldSerializer.serialize( |
| * writer, (com.google.gwt.sample.client.Student) object); |
| * } |
| * } |
| * </pre> |
| */ |
| private void maybeWriteTypeHandlerClass() { |
| if (serializableClass.isEnum() == null && serializableClass.isAbstract()) { |
| /* |
| * Field serializers are shared by all of the RemoteService proxies in a |
| * compilation. Therefore, we have to generate an instantiate method even |
| * if the type is not instantiable relative to the RemoteService which |
| * caused this field serializer to be created. If the type is not |
| * instantiable relative to any of the RemoteService proxies, dead code |
| * optimizations will cause the method to be removed from the compiled |
| * output. |
| * |
| * Enumerated types require an instantiate method even if they are |
| * abstract. You will have an abstract enum in cases where the enum type |
| * is sub-classed. Non-default instantiable classes cannot have |
| * instantiate methods. |
| */ |
| return; |
| } |
| sourceWriter.println("public static class Handler implements " |
| + TypeHandler.class.getCanonicalName() + " {"); |
| sourceWriter.indent(); |
| |
| // Deserialization method |
| sourceWriter.println("public void deserialize(SerializationStreamReader reader, Object object) throws SerializationException {"); |
| if (customFieldSerializer != null) { |
| JMethod deserializationMethod = CustomFieldSerializerValidator.getDeserializationMethod( |
| customFieldSerializer, serializableClass); |
| JType castType = deserializationMethod.getParameters()[1].getType(); |
| String typeSig = getTypeSig(deserializationMethod); |
| sourceWriter.indentln(customFieldSerializer.getQualifiedSourceName() |
| + "." + typeSig + "deserialize(reader, (" |
| + castType.getQualifiedSourceName() + ")object);"); |
| } else { |
| sourceWriter.indentln(fieldSerializerName + ".deserialize(reader, (" |
| + serializableClass.getQualifiedSourceName() + ")object);"); |
| } |
| sourceWriter.println("}"); |
| |
| // Instantiation method |
| sourceWriter.println("public Object instantiate(SerializationStreamReader reader) throws SerializationException {"); |
| sourceWriter.indent(); |
| if (serializableClass.isEnum() != null |
| || serializableClass.isDefaultInstantiable() |
| || customFieldSerializerHasInstantiate) { |
| sourceWriter.print("return "); |
| String typeSig; |
| if (customFieldSerializer != null && customFieldSerializerHasInstantiate) { |
| sourceWriter.print(customFieldSerializer.getQualifiedSourceName()); |
| JMethod instantiationMethod = CustomFieldSerializerValidator.getInstantiationMethod( |
| customFieldSerializer, serializableClass); |
| typeSig = getTypeSig(instantiationMethod); |
| } else { |
| sourceWriter.print(fieldSerializerName); |
| typeSig = ""; |
| } |
| sourceWriter.print("." + typeSig + "instantiate"); |
| sourceWriter.println("(reader);"); |
| } else { |
| sourceWriter.println("return null;"); |
| } |
| sourceWriter.outdent(); |
| sourceWriter.println("}"); |
| |
| // Serialization method |
| sourceWriter.println("public void serialize(SerializationStreamWriter writer, Object object) throws SerializationException {"); |
| if (customFieldSerializer != null) { |
| JMethod serializationMethod = CustomFieldSerializerValidator.getSerializationMethod( |
| customFieldSerializer, serializableClass); |
| JType castType = serializationMethod.getParameters()[1].getType(); |
| String typeSig = getTypeSig(serializationMethod); |
| sourceWriter.indentln(customFieldSerializer.getQualifiedSourceName() |
| + "." + typeSig + "serialize(writer, (" |
| + castType.getQualifiedSourceName() + ")object);"); |
| } else { |
| sourceWriter.indentln(fieldSerializerName + ".serialize(writer, (" |
| + serializableClass.getQualifiedSourceName() + ")object);"); |
| } |
| |
| sourceWriter.println("}"); |
| sourceWriter.outdent(); |
| sourceWriter.println("}"); |
| } |
| |
| /** |
| * Returns true if we will need a get/set method pair for a field. |
| * |
| * @return true if the the field requires accessor methods |
| */ |
| private boolean needsAccessorMethods(JField field) { |
| /* |
| * Field serializers are always emitted into the the same package as the |
| * class that they serialize. This enables the serializer class to access |
| * all fields except those that are private. |
| * |
| * Java Access Levels: default - package private - class only protected - |
| * package and all subclasses public - all |
| */ |
| return field.isPrivate(); |
| } |
| |
| private void writeArrayDeserializationStatements(JArrayType isArray) { |
| JType componentType = isArray.getComponentType(); |
| String readMethodName = Shared.getStreamReadMethodNameFor(componentType); |
| |
| if ("readObject".equals(readMethodName)) { |
| // Optimize and use the default object custom serializer... |
| sourceWriter.println(Object_Array_CustomFieldSerializer.class.getName() |
| + ".deserialize(streamReader, instance);"); |
| } else { |
| sourceWriter.println("for (int i = 0, n = instance.length; i < n; ++i) {"); |
| sourceWriter.indent(); |
| sourceWriter.print("instance[i] = streamReader."); |
| sourceWriter.println(readMethodName + "();"); |
| sourceWriter.outdent(); |
| sourceWriter.println("}"); |
| } |
| } |
| |
| private void writeArraySerializationStatements(JArrayType isArray) { |
| JType componentType = isArray.getComponentType(); |
| String writeMethodName = Shared.getStreamWriteMethodNameFor(componentType); |
| if ("writeObject".equals(writeMethodName)) { |
| // Optimize and use the default object custom serializer... |
| sourceWriter.println(Object_Array_CustomFieldSerializer.class.getName() |
| + ".serialize(streamWriter, instance);"); |
| } else { |
| sourceWriter.println("streamWriter.writeInt(instance.length);"); |
| sourceWriter.println(); |
| sourceWriter.println("for (int i = 0, n = instance.length; i < n; ++i) {"); |
| sourceWriter.indent(); |
| sourceWriter.print("streamWriter."); |
| sourceWriter.print(writeMethodName); |
| sourceWriter.println("(instance[i]);"); |
| sourceWriter.outdent(); |
| sourceWriter.println("}"); |
| } |
| } |
| |
| private void writeClassDeserializationStatements() { |
| /** |
| * If the type is capable of making a round trip between the client and |
| * server, store additional server-only field data using {@link WeakMapping}. |
| */ |
| if (serializableClass.isEnhanced()) { |
| sourceWriter.println(WEAK_MAPPING_CLASS_NAME + ".set(instance, " |
| + "\"server-enhanced-data-" |
| + getDepth(serializableClass) |
| + "\", streamReader.readString());"); |
| } |
| |
| for (JField serializableField : serializableFields) { |
| JType fieldType = serializableField.getType(); |
| |
| String readMethodName = Shared.getStreamReadMethodNameFor(fieldType); |
| String streamReadExpression = "streamReader." + readMethodName + "()"; |
| if (Shared.typeNeedsCast(fieldType)) { |
| streamReadExpression = "(" + fieldType.getQualifiedSourceName() + ") " |
| + streamReadExpression; |
| } |
| |
| if (needsAccessorMethods(serializableField)) { |
| sourceWriter.print("set"); |
| sourceWriter.print(Shared.capitalize(serializableField.getName())); |
| sourceWriter.print("(instance, "); |
| sourceWriter.print(streamReadExpression); |
| sourceWriter.println(");"); |
| } else { |
| sourceWriter.print("instance."); |
| sourceWriter.print(serializableField.getName()); |
| sourceWriter.print(" = "); |
| sourceWriter.print(streamReadExpression); |
| sourceWriter.println(";"); |
| } |
| } |
| |
| sourceWriter.println(); |
| |
| JClassType superClass = serializableClass.getSuperclass(); |
| if (superClass != null |
| && (typesSentFromBrowser.isSerializable(superClass) || typesSentToBrowser.isSerializable(superClass))) { |
| String superFieldSerializer = SerializationUtils.getFieldSerializerName( |
| typeOracle, superClass); |
| sourceWriter.print(superFieldSerializer); |
| sourceWriter.println(".deserialize(streamReader, instance);"); |
| } |
| } |
| |
| private void writeClassSerializationStatements() { |
| /** |
| * If the type is capable of making a round trip between the client and |
| * server, retrieve the additional server-only field data from {@link WeakMapping}. |
| */ |
| |
| if (serializableClass.isEnhanced()) { |
| sourceWriter.println("streamWriter.writeString((String) " |
| + WEAK_MAPPING_CLASS_NAME |
| + ".get(instance, \"server-enhanced-data-" |
| + getDepth(serializableClass) + "\"));"); |
| } |
| |
| for (JField serializableField : serializableFields) { |
| JType fieldType = serializableField.getType(); |
| |
| String writeMethodName = Shared.getStreamWriteMethodNameFor(fieldType); |
| sourceWriter.print("streamWriter."); |
| sourceWriter.print(writeMethodName); |
| sourceWriter.print("("); |
| |
| if (needsAccessorMethods(serializableField)) { |
| sourceWriter.print("get"); |
| sourceWriter.print(Shared.capitalize(serializableField.getName())); |
| sourceWriter.println("(instance));"); |
| } else { |
| sourceWriter.print("instance."); |
| sourceWriter.print(serializableField.getName()); |
| sourceWriter.println(");"); |
| } |
| } |
| |
| sourceWriter.println(); |
| |
| JClassType superClass = serializableClass.getSuperclass(); |
| if (superClass != null |
| && (typesSentFromBrowser.isSerializable(superClass) || typesSentToBrowser.isSerializable(superClass))) { |
| String superFieldSerializer = SerializationUtils.getFieldSerializerName( |
| typeOracle, superClass); |
| sourceWriter.print(superFieldSerializer); |
| sourceWriter.println(".serialize(streamWriter, instance);"); |
| } |
| } |
| |
| /** |
| * Writes the concreteType method, for loading a Java Class -> TypeHandler |
| * map. |
| * |
| * <pre> |
| * public static Class<?> concreteType() { |
| * return com.google.gwt.sample.client.Student.class; |
| * } |
| * </pre> |
| */ |
| private void writeConcreteTypeMethod() { |
| if (customFieldSerializer != null |
| && CustomFieldSerializerValidator.getConcreteTypeMethod(customFieldSerializer) != null) { |
| return; |
| } |
| |
| if (classIsAccessible()) { |
| sourceWriter.println("public static Class<?> concreteType() {"); |
| sourceWriter.indentln("return " |
| + serializableClass.getQualifiedSourceName() + ".class;"); |
| sourceWriter.println("}"); |
| sourceWriter.println(); |
| } else { |
| String jsniTypeRef = TypeOracleMediator.computeBinaryClassName(serializableClass); |
| sourceWriter.println("public static native Class<?> concreteType() /*-{"); |
| sourceWriter.indentln("return @" + jsniTypeRef + "::class;"); |
| sourceWriter.println("}-*/;"); |
| sourceWriter.println(); |
| } |
| } |
| |
| private void writeDeserializeMethod() { |
| if (customFieldSerializer != null) { |
| return; |
| } |
| sourceWriter.print("public static void deserialize(SerializationStreamReader streamReader, "); |
| sourceWriter.print(serializableClass.getQualifiedSourceName()); |
| sourceWriter.println(" instance) throws SerializationException {"); |
| sourceWriter.indent(); |
| |
| JArrayType isArray = serializableClass.isArray(); |
| if (isArray != null) { |
| writeArrayDeserializationStatements(isArray); |
| } else if (serializableClass.isEnum() != null) { |
| writeEnumDeserializationStatements(); |
| } else { |
| writeClassDeserializationStatements(); |
| } |
| |
| sourceWriter.outdent(); |
| sourceWriter.println("}"); |
| sourceWriter.println(); |
| } |
| |
| private void writeEnumDeserializationStatements() { |
| sourceWriter.println("// Enum deserialization is handled via the instantiate method"); |
| } |
| |
| private void writeEnumSerializationStatements() { |
| sourceWriter.println("assert (instance != null);"); |
| sourceWriter.println("streamWriter.writeInt(instance.ordinal());"); |
| } |
| |
| /** |
| * This method will generate a native JSNI accessor method for every field |
| * that is protected, private using the "Violator" pattern to allow an |
| * external class to access the field's value. |
| */ |
| private void writeFieldAccessors() { |
| if (customFieldSerializer != null) { |
| return; |
| } |
| for (JField serializableField : serializableFields) { |
| if (!needsAccessorMethods(serializableField)) { |
| continue; |
| } |
| |
| writeFieldGet(serializableField); |
| writeFieldSet(serializableField); |
| } |
| } |
| |
| /** |
| * Write a getter method for an instance field. |
| */ |
| private void writeFieldGet(JField serializableField) { |
| JType fieldType = serializableField.getType(); |
| String fieldTypeQualifiedSourceName = fieldType.getQualifiedSourceName(); |
| String fieldName = serializableField.getName(); |
| |
| maybeSuppressLongWarnings(fieldType); |
| sourceWriter.print("private static native "); |
| sourceWriter.print(fieldTypeQualifiedSourceName); |
| sourceWriter.print(" get"); |
| sourceWriter.print(Shared.capitalize(fieldName)); |
| sourceWriter.print("("); |
| sourceWriter.print(serializableClass.getQualifiedSourceName()); |
| sourceWriter.println(" instance) /*-{"); |
| sourceWriter.indent(); |
| |
| sourceWriter.print("return instance.@"); |
| sourceWriter.print(TypeOracleMediator.computeBinaryClassName(serializableClass)); |
| sourceWriter.print("::"); |
| sourceWriter.print(fieldName); |
| sourceWriter.println(";"); |
| |
| sourceWriter.outdent(); |
| sourceWriter.println("}-*/;"); |
| sourceWriter.println(); |
| } |
| |
| /** |
| * Write a setter method for an instance field. |
| */ |
| private void writeFieldSet(JField serializableField) { |
| JType fieldType = serializableField.getType(); |
| String fieldTypeQualifiedSourceName = fieldType.getQualifiedSourceName(); |
| String serializableClassQualifedName = serializableClass.getQualifiedSourceName(); |
| String fieldName = serializableField.getName(); |
| |
| maybeSuppressLongWarnings(fieldType); |
| sourceWriter.print("private static native void "); |
| sourceWriter.print(" set"); |
| sourceWriter.print(Shared.capitalize(fieldName)); |
| sourceWriter.print("("); |
| sourceWriter.print(serializableClassQualifedName); |
| sourceWriter.print(" instance, "); |
| sourceWriter.print(fieldTypeQualifiedSourceName); |
| sourceWriter.println(" value) /*-{"); |
| sourceWriter.indent(); |
| |
| sourceWriter.print("instance.@"); |
| sourceWriter.print(TypeOracleMediator.computeBinaryClassName(serializableClass)); |
| sourceWriter.print("::"); |
| sourceWriter.print(fieldName); |
| sourceWriter.println(" = value;"); |
| |
| sourceWriter.outdent(); |
| sourceWriter.println("}-*/;"); |
| sourceWriter.println(); |
| } |
| |
| private void writeSerializeMethod() { |
| if (customFieldSerializer != null) { |
| return; |
| } |
| sourceWriter.print("public static void serialize(SerializationStreamWriter streamWriter, "); |
| sourceWriter.print(serializableClass.getQualifiedSourceName()); |
| sourceWriter.println(" instance) throws SerializationException {"); |
| sourceWriter.indent(); |
| |
| JArrayType isArray = serializableClass.isArray(); |
| if (isArray != null) { |
| writeArraySerializationStatements(isArray); |
| } else if (serializableClass.isEnum() != null) { |
| writeEnumSerializationStatements(); |
| } else { |
| writeClassSerializationStatements(); |
| } |
| |
| sourceWriter.outdent(); |
| sourceWriter.println("}"); |
| sourceWriter.println(); |
| } |
| |
| } |
