org.jboss.errai.codegen.meta.MetaClass类的使用及代码示例

x33g5p2x  于2022-01-25 转载在 其他  
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本文整理了Java中org.jboss.errai.codegen.meta.MetaClass类的一些代码示例，展示了MetaClass类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。MetaClass类的具体详情如下：
包路径：org.jboss.errai.codegen.meta.MetaClass
类名称：MetaClass

MetaClass介绍

暂无

代码示例

代码示例来源：origin: org.jboss.errai/errai-bus

private Statement generateRequest(ClassStructureBuilder<?> classBuilder,
   MetaMethod method, Statement methodParams, boolean intercepted) {
  
  final Statement sendable = Stmt
      .invokeStatic(MessageBuilder.class, "createCall")
      .invoke("call", remote.getFullyQualifiedName())
      .invoke("endpoint", ProxyUtil.createCallSignature(method),
        Stmt.loadClassMember("qualifiers"),
        methodParams)
      .invoke("respondTo", method.getReturnType().asBoxed(), Stmt.loadVariable("remoteCallback"))
      .invoke("errorsHandledBy", Stmt.loadVariable("errorCallback"));

  final BlockStatement requestBlock = new BlockStatement();
  requestBlock.addStatement(Stmt.declareVariable("sendable", RemoteCallSendable.class, sendable));
  requestBlock.addStatement(Stmt.loadStatic(classBuilder.getClassDefinition(), "this")
    .invoke("sendRequest", Variable.get("bus"), Variable.get("sendable")));

  return requestBlock;
 }
}

代码示例来源：origin: errai/errai

private void setStandaloneInterceptors(final Collection<MetaClass> standaloneInterceptors) {
 for (final MetaClass interceptorClass : standaloneInterceptors) {
  final InterceptsRemoteCall interceptor = interceptorClass.getAnnotation(InterceptsRemoteCall.class);
  final Class<?>[] intercepts = interceptor.value();
  for (final Class<?> intercept : intercepts) {
   this.standaloneInterceptors.put(intercept, interceptorClass.asClass());
  }
 }
}

代码示例来源：origin: org.jboss.errai/errai-bus

private void generateMethod(ClassStructureBuilder<?> classBuilder, MetaMethod method) {
 final List<Class<?>> interceptors = interceptorProvider.getInterceptors(remote, method);
 final boolean intercepted = !interceptors.isEmpty();
 final Parameter[] parms = DefParameters.from(method).getParameters().toArray(new Parameter[0]);
 final Parameter[] finalParms = new Parameter[parms.length];
 final List<Statement> parmVars = new ArrayList<Statement>();
 for (int i = 0; i < parms.length; i++) {
  finalParms[i] = Parameter.of(parms[i].getType().getErased(), parms[i].getName(), true);
  parmVars.add(Stmt.loadVariable(parms[i].getName()));
 }
 final Statement parameters = (intercepted) ?
   new StringStatement("getParameters()", MetaClassFactory.get(Object[].class)) :
    Stmt.newArray(Object.class).initialize(parmVars.toArray());
 final BlockBuilder<?> methodBlock =
   classBuilder.publicMethod(method.getReturnType().getErased(), method.getName(), finalParms);
 if (intercepted) {
  methodBlock.append(generateInterceptorLogic(classBuilder, method,
    generateRequest(classBuilder, method, parameters, true), parmVars, interceptors));
 }
 else {
  methodBlock.append(generateRequest(classBuilder, method, parameters, false));
 }
 final Statement returnStmt = ProxyUtil.generateProxyMethodReturnStatement(method);
 if (returnStmt != null) {
  methodBlock.append(returnStmt);
 }
 methodBlock.finish();
}

代码示例来源：origin: org.jboss.errai/errai-bus

@Override
 public Collection<MetaClass> provideTypesToExpose() {
  final Set<MetaClass> types = new HashSet<MetaClass>();
  for (final MetaClass metaClass : ClassScanner.getTypesAnnotatedWith(Remote.class)) {
   for (final MetaMethod method : metaClass.getDeclaredMethods()) {
    if (!method.getReturnType().isVoid()) {
     types.add(method.getReturnType().getErased());
    }
    for (final MetaParameter parameter : method.getParameters()) {
     final MetaClass type = parameter.getType();

     types.add(type.getErased());

     final MetaParameterizedType parameterizedType = type.getParameterizedType();
     if (parameterizedType != null) {
      for (final MetaType tp : parameterizedType.getTypeParameters()) {
        if (tp instanceof MetaClass) {
         types.add(((MetaClass) tp).getErased());
        }
      }
     }

    }
   }
  }
  return types;
 }
}

代码示例来源：origin: org.jboss.errai/errai-bus

public ClassStructureBuilder<?> generate() {
 final String safeProxyClassName = remote.getFullyQualifiedName().replace('.', '_') + "Impl";
 final ClassStructureBuilder<?> classBuilder =
  ClassBuilder.define(safeProxyClassName, AbstractRpcProxy.class)
   .packageScope()
   .implementsInterface(remote)
   .body();
 for (final MetaMethod method : remote.getMethods()) {
  if (ProxyUtil.shouldProxyMethod(method)) {
   generateMethod(classBuilder, method);
  }
 }
 return classBuilder;
}

代码示例来源：origin: org.jboss.errai/errai-cdi-client

private BlockBuilder<AnonymousClassStructureBuilder> getJsTypeSubscriptionCallback(final Decorable decorable, final FactoryController controller) {

  final MetaParameter parm = decorable.getAsParameter();
  final MetaClass eventType = parm.getType().asBoxed();
  final String parmClassName = eventType.getFullyQualifiedName();

  final MetaClass callBackType = parameterizedAs(JsTypeEventObserver.class, typeParametersOf(eventType));
  final AnonymousClassStructureBuilder callBack = Stmt.newObject(callBackType).extend();
  BlockBuilder<AnonymousClassStructureBuilder> callBackBlock;

  final List<Statement> fireEventStmts = new ArrayList<>();
  if (!decorable.isEnclosingTypeDependent()) {
   fireEventStmts.add(Stmt.declareFinalVariable("instance", decorable.getEnclosingInjectable().getInjectedType(),
       Stmt.invokeStatic(Factory.class, "maybeUnwrapProxy", controller.contextGetInstanceStmt())));
  }
  fireEventStmts.add(decorable.call(Refs.get("event")));

  callBackBlock = callBack.publicOverridesMethod("onEvent", Parameter.finalOf(eventType, "event"))
    .appendAll(fireEventStmts)
    .finish()
    .publicOverridesMethod("toString")
    ._(Stmt.load("JsTypeObserver: " + parmClassName).returnValue());

  return callBackBlock;
 }
}

代码示例来源：origin: org.jboss.errai/errai-data-binding

Parameter.of(String.class, "property"));
    Parameter.of(String.class, "property"),
    Parameter.of(Object.class, "value"));
CaseBlockBuilder getSwitchBlock = Stmt.switch_(loadVariable("property"));
CaseBlockBuilder setSwitchBlock = Stmt.switch_(loadVariable("property"));
for (final String property : bindable.getBeanDescriptor().getProperties()) {
 generateGetter(classBuilder, property, getSwitchBlock);
 generateSetter(classBuilder, property, setSwitchBlock);
final Statement nonExistingPropertyException = Stmt.throw_(NonExistingPropertyException.class,
    Stmt.loadLiteral(bindable.getName()), Variable.get("property"));
getSwitchBlock.default_().append(nonExistingPropertyException).finish();
setSwitchBlock.default_().append(nonExistingPropertyException).finish();
 .append(Stmt.declareFinalVariable("props", Map.class, ObjectBuilder.newInstanceOf(HashMap.class)
     .withParameters(agent().loadField("propertyTypes"))))
 .append(Stmt.loadVariable("props").invoke("remove", "this"))
 .append(Stmt.invokeStatic(Collections.class, "unmodifiableMap", Stmt.loadVariable("props")).returnValue())
.finish();

代码示例来源：origin: errai/errai

.define("Dynamic" + fullyQualifiedClassNameToCamelCase(validator.getFullyQualifiedName()), validator)
 .publicScope()
 .implementsInterface(parameterizedAs(GeneratedDynamicValidator.class, typeParametersOf(valueType)))
 .body();
 .publicMethod(parameterizedAs(Set.class, typeParametersOf(ConstraintViolation.class)), "validate",
        finalOf(parameterizedAs(Map.class, typeParametersOf(String.class, Object.class)), "parameters"),
        finalOf(valueType, "value"))
 .body();
return loadVariable("dynamicValidator").invoke("addValidator", loadLiteral(annoType.getFullyQualifiedName()),
    loadLiteral(valueType.getFullyQualifiedName()),
    newObject(generatedValidatorBuilder.getClassDefinition()));

代码示例来源：origin: errai/errai

private void implementAccessibleMethods(final ClassStructureBuilder<?> proxyImpl, final Injectable injectable, final BuildMetaClass factoryClass) {
 final Multimap<String, MetaMethod> proxiedMethodsByName = HashMultimap.create();
 final MetaClass injectedType = injectable.getInjectedType();
 for (final MetaMethod method : injectedType.getMethods()) {
  if (shouldProxyMethod(method, proxiedMethodsByName)) {
   proxiedMethodsByName.put(method.getName(), method);
   final BlockBuilder<?> body = createProxyMethodDeclaration(proxyImpl, method);
   final StatementBuilder proxiedInstanceDeclaration = declareFinalVariable("proxiedInstance",
       injectable.getInjectedType(), loadVariable("proxyHelper").invoke("getInstance", loadVariable("this")));
   final ContextualStatementBuilder proxyHelperInvocation = proxyHelperInvocation(method, factoryClass);
   final Statement nonInitializedCase;
   final boolean nonInitializedReturns;
   if (injectedType.isInterface() || method.isAbstract()) {
   } else if (!(method.isPublic() || method.isPrivate() || method.isProtected())) {
           .append(proxiedInstanceDeclaration)
           .appendAll(controller.getInvokeBeforeStatements(method));
   if (method.getReturnType().isVoid()) {
    ifBlock.append(proxyHelperInvocation);
   } else {
    ifBlock.append(declareFinalVariable("retVal", method.getReturnType().getErased(), proxyHelperInvocation));
    ifBlock.appendAll(controller.getInvokeAfterStatements(method));
    ifBlock.append(loadVariable("retVal").returnValue());
    if (nonInitializedReturns) {
     body.append(ifBlock.finish().else_().append(nestedCall(nonInitializedCase).returnValue()).finish());
   logger.warn("The normal scoped type, " + injectable.getInjectedType().getFullyQualifiedName()

代码示例来源：origin: errai/errai

if (!method.isStatic()) {
 wrapperDefParms.add(Parameter.of(method.getDeclaringClass().getErased(), "instance"));
 args[i++] = Refs.get(p.getName());
    = classBuilder.publicMethod(method.getReturnType(),
    PrivateAccessUtil.getPrivateMethodName(method))
    .parameters(DefParameters.fromParameters(wrapperDefParms))
    .body();
final BlockBuilder<CatchBlockBuilder> tryBuilder = Stmt.try_();
final ContextualStatementBuilder statementBuilder = Stmt.loadVariable(cachedMethod)
    .invoke("invoke", method.isStatic() ? null : Refs.get("instance"), args);
if (method.getReturnType().isVoid()) {
 tryBuilder._(statementBuilder);
 tryBuilder._(Stmt.castTo(method.getReturnType().asBoxed(), statementBuilder).returnValue());
body._(tryBuilder
    .finish()
    .catch_(Throwable.class, "e")
    ._(Stmt.loadVariable("e").invoke("printStackTrace"))
    ._(Stmt.throw_(RuntimeException.class, Refs.get("e")))
    .finish())

代码示例来源：origin: errai/errai

@Override
public void createReadableField(final MetaClass type,
                final ClassStructureBuilder<?> classBuilder,
                final MetaField field,
                final Modifier[] modifiers) {
 final String cachedField = initCachedField(classBuilder, field);
 final String getterName = getReflectionFieldGetterName(field);
 final MethodCommentBuilder<? extends ClassStructureBuilder<?>> methodBuilder =
     classBuilder.privateMethod(field.getType().getErased(), PrivateAccessUtil.getPrivateFieldAccessorName(field));
 if (!field.isStatic()) {
  methodBuilder.parameters(
      DefParameters.fromParameters(
          Parameter.of(field.getDeclaringClass().getErased(), "instance")
      )
  );
 }
 methodBuilder.modifiers(modifiers)
     .body()
     ._(Stmt.try_()
         ._(Stmt.nestedCall(Cast.to(field.getType().getErased(), Stmt.loadVariable(cachedField)
             .invoke(getterName, field.isStatic() ? null : Refs.get("instance")))).returnValue())
         .finish()
         .catch_(Throwable.class, "e")
         ._(Stmt.loadVariable("e").invoke("printStackTrace"))
         ._(Stmt.throw_(RuntimeException.class, Refs.get("e")))
         .finish())
     .finish();
}

代码示例来源：origin: org.jboss.errai/errai-marshalling

public Statement extractJSONObjectProperty(final String fieldName, final MetaClass fromType) {
 if (fromType.getFullyQualifiedName().equals(EJObject.class.getName())) {
  return loadVariable("obj").invoke("get", fieldName);
 }
 else {
  return Stmt.nestedCall(Cast.to(fromType, loadVariable("a0"))).invoke("get", fieldName);
 }
}

代码示例来源：origin: errai/errai

public static void ensureMarshallerFieldCreated(final ClassStructureBuilder<?> classStructureBuilder,
  final MetaClass marshallerForType, final MetaClass type, final BlockBuilder<?> initMethod,
  final Statement marshallerCreationCallback) {
 final String fieldName = MarshallingGenUtil.getVarName(type);
 if (classStructureBuilder.getClassDefinition().getField(fieldName) == null) {
  final Statement marshallerLookup = createMarshallerLookup(marshallerForType, type, marshallerCreationCallback);
  if (initMethod == null) {
   classStructureBuilder.privateField(fieldName,
     parameterizedAs(Marshaller.class, typeParametersOf(type.getErased().asBoxed())))
     .initializesWith(marshallerLookup).finish();
  }
  else {
   classStructureBuilder.privateField(fieldName,
     parameterizedAs(Marshaller.class, typeParametersOf(type.getErased().asBoxed())))
     .initializesWith(Stmt.load(null)).finish();
   initMethod.append(
     If.isNull(Stmt.loadVariable(fieldName)).append(
       Stmt.loadVariable(fieldName).assignValue(marshallerLookup)).finish());
  }
 }
}

代码示例来源：origin: errai/errai

public Statement unwrapJSON(final Statement valueStatement, final MetaClass toType, final MetaClass targetType) {
 if (toType.isEnum()) {
  return demarshallEnum(Stmt.nestedCall(valueStatement).invoke("isObject"), valueStatement, toType);
 }
 else {
  final String varName = MarshallingGenUtil.getVarName(toType);
  if (toType.equals(MetaClassFactory.get(Object.class))) {
   return Stmt.castTo(ObjectMarshaller.class, Stmt.loadVariable(varName))
     .invoke("demarshall", targetType.asClass(), valueStatement, loadVariable("a1"));
  }
  return Stmt.loadVariable(varName)
    .invoke("demarshall", valueStatement, loadVariable("a1"));
 }
}

代码示例来源：origin: org.jboss.errai/errai-navigation

/**
 * Appends a method that destroys the IOC bean associated with a page node if the bean is
 * dependent scope.
 *
 * @param pageImplBuilder
 *          The class builder for the implementation of PageNode we are adding the method to.
 * @param pageClass
 *          The "content type" (Widget subclass) of the page. This is the type the user annotated
 *          with {@code @Page}.
 */
private void appendDestroyMethod(AnonymousClassStructureBuilder pageImplBuilder, MetaClass pageClass) {
 BlockBuilder<?> method = pageImplBuilder.publicMethod(
     void.class,
     "destroy",
     Parameter.of(pageClass, "widget")).body();
 if (pageClass.getAnnotation(Singleton.class) == null && pageClass.getAnnotation(ApplicationScoped.class) == null
     && pageClass.getAnnotation(EntryPoint.class) == null) {
  method.append(Stmt.loadVariable("bm").invoke("destroyBean", Stmt.loadVariable("widget")));
 }
 method.finish();
}

代码示例来源：origin: errai/errai

private ObjectBuilder createAnonymousImpl(final MetaClass type) {
 final AnonymousClassStructureBuilder builder = newObject(type).extend();
 stream(type.getMethods())
  .filter(m -> m.isPublic() && m.isAbstract())
  .forEach(m -> {
   builder
    .publicOverridesMethod(m.getName(), of(m.getParameters()))
    .append(Stmt.throw_(RuntimeException.class))
    .finish();
  });
 return builder.finish();
}

代码示例来源：origin: org.jboss.errai/errai-jaxrs-client

private static Statement marshal(final MetaClass type, final Statement statement) {
 ContextualStatementBuilder s = null;
 if (type.isPrimitive()) {
  s = Stmt.nestedCall(Stmt.newObject(type.asBoxed()).withParameters(statement)).invoke("toString");
 }
 else if (type.getFullyQualifiedName().equals(Date.class.getName())) {
  s = Stmt.nestedCall(new TernaryStatement(Bool.isNull(statement), Stmt.load(""), Stmt.nestedCall(statement).invoke("toGMTString")));
 }
 else {
  s = Stmt.nestedCall(new TernaryStatement(Bool.isNull(statement), Stmt.load(""), Stmt.nestedCall(statement)));
  if (!type.equals(MetaClassFactory.get(String.class))) {
   s = s.invoke("toString");
  }
 }
 return s;
}

代码示例来源：origin: errai/errai

private ObjectBuilder createJsTypeProvider(final MetaClass type) {
 return newObject(DummyJsTypeProvider.class)
  .extend()
  .publicOverridesMethod("getInstance")
  .append(nestedCall(createAnonymousImpl(type)).returnValue())
  .finish()
  .publicOverridesMethod("getName")
  .append(loadLiteral("Anti-inlining impl for: " + type.getFullyQualifiedName()).returnValue())
  .finish()
  .finish();
}

代码示例来源：origin: errai/errai

@Override
public void generateDecorator(final Decorable decorable, final FactoryController controller) {
 MetaMethod method = decorable.getAsMethod();
 MetaParameter[] params = method.getParameters();
 if (params.length != 1 || !params[0].getType().getErased().equals(MetaClassFactory.get(SyncResponses.class))) {
  throw new GenerationException("Methods annotated with @" + Sync.class.getName()
    + " need to have exactly one parameter of type: "
    + SyncResponses.class.getName() +
    ". Check method: " + GenUtil.getMethodString(method) + " in class "
    + method.getDeclaringClass().getFullyQualifiedName());
 }
 Sync syncAnnotation = (Sync) decorable.getAnnotation();
 controller.addInitializationStatements(createInitStatements(decorable.getDecorableDeclaringType(), "obj", syncAnnotation, decorable, controller));
 final Statement syncWorker = controller.getReferenceStmt("syncWorker", ClientSyncWorker.class);
 final Statement destruction = Stmt.nestedCall(syncWorker).invoke("stop");
 controller.addDestructionStatements(Collections.singletonList(destruction));
}

代码示例来源：origin: errai/errai

private static void _doRunnableTasks(final Collection<MetaClass> classes, final BlockBuilder<?> blockBuilder) {
 for (final MetaClass clazz : classes) {
  if (!clazz.isAssignableTo(Runnable.class)) {
   throw new RuntimeException("annotated @IOCBootstrap task: " + clazz.getName() + " is not of type: "
     + Runnable.class.getName());
  }
  blockBuilder.append(Stmt.nestedCall(Stmt.newObject(clazz)).invoke("run"));
 }
}

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