org.eclipse.jdt.core.dom.MethodDeclaration#modifiers ( )源码实例Demo

private static boolean hasNullAnnotation(MethodDeclaration decl) {
	List<IExtendedModifier> modifiers= decl.modifiers();
	String nonnull= NullAnnotationsFix.getNonNullAnnotationName(decl.resolveBinding().getJavaElement(), false);
	String nullable= NullAnnotationsFix.getNullableAnnotationName(decl.resolveBinding().getJavaElement(), false);
	for (Object mod : modifiers) {
		if (mod instanceof Annotation) {
			Name annotationName= ((Annotation) mod).getTypeName();
			String fullyQualifiedName= annotationName.getFullyQualifiedName();
			if (annotationName.isSimpleName() ? nonnull.endsWith(fullyQualifiedName) : fullyQualifiedName.equals(nonnull))
				return true;
			if (annotationName.isSimpleName() ? nullable.endsWith(fullyQualifiedName) : fullyQualifiedName.equals(nullable))
				return true;
		}
	}
	return false;
}
 

/**
 * Returning method full name. [access modifier + return + name + (parameters list)]
 * @param methodVersion
 * @return
 */
private String getFullNameMethod(MethodDeclaration methodVersion){
	String nameMethod = "";
	if(methodVersion != null){
		String modifiersMethod = (methodVersion.modifiers() != null) ? (StringUtils.join(methodVersion.modifiers(), " ") + " ") : " ";
		String returnMethod = (methodVersion.getReturnType2() != null) ? (methodVersion.getReturnType2().toString() + " ") : "";
		String parametersMethod = (methodVersion.parameters() != null) ? StringUtils.join(methodVersion.parameters(), ", ") : " ";
		nameMethod = modifiersMethod + returnMethod + methodVersion.getName() + "(" + parametersMethod + ")";
	}
	return nameMethod;
}
 

private Modifier getPublicModifier(MethodDeclaration method) {
    List<?> list = method.modifiers();
    for (Object o : list) {
        if (o.getClass().equals(Modifier.class)) {
            Modifier mdf = (Modifier) o;
            if (mdf.getKeyword().equals(PUBLIC_KEYWORD)) {
                return mdf;
            }
        }

    }
    return null;
}
 

public static boolean hasOverrideAnnotation(final MethodDeclaration node) {
	final List modifiers = node.modifiers();
	for (final Object mod : modifiers) {
		final IExtendedModifier modifier = (IExtendedModifier) mod;
		if (modifier.isAnnotation()) {
			final Annotation annotation = (Annotation) modifier;
			if (annotation.getTypeName().toString().equals("Override")) {
				return true;
			}
		}
	}
	return false;
}
 

public static boolean hasOverrideAnnotation(final MethodDeclaration node) {
	final List modifiers = node.modifiers();
	for (final Object mod : modifiers) {
		final IExtendedModifier modifier = (IExtendedModifier) mod;
		if (modifier.isAnnotation()) {
			final Annotation annotation = (Annotation) modifier;
			if (annotation.getTypeName().toString().equals("Override")) {
				return true;
			}
		}
	}
	return false;
}
 

private void setPublicModifierToSourceMethod(IMethodBinding methodBinding, TypeDeclaration sourceTypeDeclaration) {
	MethodDeclaration[] methodDeclarations = sourceTypeDeclaration.getMethods();
	for(MethodDeclaration methodDeclaration : methodDeclarations) {
		if(methodDeclaration.resolveBinding().isEqualTo(methodBinding)) {
			CompilationUnit sourceCompilationUnit = RefactoringUtility.findCompilationUnit(methodDeclaration);
			ASTRewrite sourceRewriter = ASTRewrite.create(sourceCompilationUnit.getAST());
			ListRewrite modifierRewrite = sourceRewriter.getListRewrite(methodDeclaration, MethodDeclaration.MODIFIERS2_PROPERTY);
			Modifier publicModifier = methodDeclaration.getAST().newModifier(Modifier.ModifierKeyword.PUBLIC_KEYWORD);
			boolean modifierFound = false;
			List<IExtendedModifier> modifiers = methodDeclaration.modifiers();
			for(IExtendedModifier extendedModifier : modifiers) {
				if(extendedModifier.isModifier()) {
					Modifier modifier = (Modifier)extendedModifier;
					if(modifier.getKeyword().equals(Modifier.ModifierKeyword.PUBLIC_KEYWORD)) {
						modifierFound = true;
					}
					else if(modifier.getKeyword().equals(Modifier.ModifierKeyword.PRIVATE_KEYWORD)) {
						modifierFound = true;
						modifierRewrite.replace(modifier, publicModifier, null);
						updateAccessModifier(sourceRewriter, sourceCompilationUnit);
					}
					else if(modifier.getKeyword().equals(Modifier.ModifierKeyword.PROTECTED_KEYWORD)) {
						modifierFound = true;
						IPackageBinding targetTypeDeclarationPackageBinding = this.targetTypeDeclaration.resolveBinding().getPackage();
						IPackageBinding typeDeclarationPackageBinding = sourceTypeDeclaration.resolveBinding().getPackage();
						if(targetTypeDeclarationPackageBinding != null && typeDeclarationPackageBinding != null &&
								!targetTypeDeclarationPackageBinding.isEqualTo(typeDeclarationPackageBinding)) {
							modifierRewrite.replace(modifier, publicModifier, null);
							updateAccessModifier(sourceRewriter, sourceCompilationUnit);
						}
					}
				}
			}
			if(!modifierFound) {
				modifierRewrite.insertFirst(publicModifier, null);
				updateAccessModifier(sourceRewriter, sourceCompilationUnit);
			}
		}
	}
}
 

public static boolean hasOverrideAnnotation(final MethodDeclaration node) {
	final List modifiers = node.modifiers();
	for (final Object mod : modifiers) {
		final IExtendedModifier modifier = (IExtendedModifier) mod;
		if (modifier.isAnnotation()) {
			final Annotation annotation = (Annotation) modifier;
			if (annotation.getTypeName().toString().equals("Override")) {
				return true;
			}
		}
	}
	return false;
}
 

/**
 * Creates the necessary changes to create the delegate method with the
 * original method body.
 *
 * @param document
 *            the buffer containing the source of the source compilation
 *            unit
 * @param declaration
 *            the method declaration to use as source
 * @param rewrite
 *            the ast rewrite to use for the copy of the method body
 * @param rewrites
 *            the compilation unit rewrites
 * @param adjustments
 *            the map of elements to visibility adjustments
 * @param status
 *            the refactoring status
 * @param monitor
 *            the progress monitor to display progress
 * @throws CoreException
 *             if an error occurs
 */
protected void createMethodCopy(IDocument document, MethodDeclaration declaration, ASTRewrite rewrite, Map<ICompilationUnit, CompilationUnitRewrite> rewrites, Map<IMember, IncomingMemberVisibilityAdjustment> adjustments, RefactoringStatus status, IProgressMonitor monitor) throws CoreException {
	Assert.isNotNull(document);
	Assert.isNotNull(declaration);
	Assert.isNotNull(rewrite);
	Assert.isNotNull(rewrites);
	Assert.isNotNull(adjustments);
	Assert.isNotNull(status);
	Assert.isNotNull(monitor);
	final CompilationUnitRewrite rewriter= getCompilationUnitRewrite(rewrites, getTargetType().getCompilationUnit());
	try {
		rewrite.set(declaration, MethodDeclaration.NAME_PROPERTY, rewrite.getAST().newSimpleName(fMethodName), null);
		boolean same= false;
		final IMethodBinding binding= declaration.resolveBinding();
		if (binding != null) {
			final ITypeBinding declaring= binding.getDeclaringClass();
			if (declaring != null && Bindings.equals(declaring.getPackage(), fTarget.getType().getPackage()))
				same= true;
			final Modifier.ModifierKeyword keyword= same ? null : Modifier.ModifierKeyword.PUBLIC_KEYWORD;
			ModifierRewrite modifierRewrite= ModifierRewrite.create(rewrite, declaration);
			if (JdtFlags.isDefaultMethod(binding) && getTargetType().isClass()) {
				// Remove 'default' modifier and add 'public' visibility
				modifierRewrite.setVisibility(Modifier.PUBLIC, null);
				modifierRewrite.setModifiers(Modifier.NONE, Modifier.DEFAULT, null);
			} else if (!JdtFlags.isDefaultMethod(binding) && getTargetType().isInterface()) {
				// Remove visibility modifiers and add 'default'
				modifierRewrite.setModifiers(Modifier.DEFAULT, Modifier.PUBLIC | Modifier.PROTECTED | Modifier.PRIVATE, null);
			} else if (MemberVisibilityAdjustor.hasLowerVisibility(binding.getModifiers(), same ? Modifier.NONE : keyword == null ? Modifier.NONE : keyword.toFlagValue())
					&& MemberVisibilityAdjustor.needsVisibilityAdjustments(fMethod, keyword, adjustments)) {
				final MemberVisibilityAdjustor.IncomingMemberVisibilityAdjustment adjustment= new MemberVisibilityAdjustor.IncomingMemberVisibilityAdjustment(fMethod, keyword, RefactoringStatus.createStatus(RefactoringStatus.WARNING, Messages.format(RefactoringCoreMessages.MemberVisibilityAdjustor_change_visibility_method_warning, new String[] { MemberVisibilityAdjustor.getLabel(fMethod), MemberVisibilityAdjustor.getLabel(keyword) }), JavaStatusContext.create(fMethod), null, RefactoringStatusEntry.NO_CODE, null));
				modifierRewrite.setVisibility(keyword == null ? Modifier.NONE : keyword.toFlagValue(), null);
				adjustment.setNeedsRewriting(false);
				adjustments.put(fMethod, adjustment);
			}
		}
		for (IExtendedModifier modifier : (List<IExtendedModifier>) declaration.modifiers()) {
			if (modifier.isAnnotation()) {
				Annotation annotation= (Annotation) modifier;
				ITypeBinding typeBinding= annotation.resolveTypeBinding();
				if (typeBinding != null && typeBinding.getQualifiedName().equals("java.lang.Override")) { //$NON-NLS-1$
					rewrite.remove(annotation, null);
				}
			}
		}
		createMethodArguments(rewrites, rewrite, declaration, adjustments, status);
		createMethodTypeParameters(rewrite, declaration, status);
		createMethodComment(rewrite, declaration);
		createMethodBody(rewriter, rewrite, declaration);
	} finally {
		if (fMethod.getCompilationUnit().equals(getTargetType().getCompilationUnit()))
			rewriter.clearImportRewrites();
	}
}
 

private void createIntermediaryMethod() throws CoreException {

		CompilationUnitRewrite imRewrite= getCachedCURewrite(fIntermediaryType.getCompilationUnit());
		AST ast= imRewrite.getAST();
		MethodDeclaration intermediary= ast.newMethodDeclaration();

		// Intermediary class is non-anonymous
		AbstractTypeDeclaration type= (AbstractTypeDeclaration)typeToDeclaration(fIntermediaryType, imRewrite.getRoot());

		// Name
		intermediary.setName(ast.newSimpleName(fIntermediaryMethodName));

		// Flags
		List<IExtendedModifier> modifiers= intermediary.modifiers();
		if (!fIntermediaryType.isInterface()) {
			modifiers.add(imRewrite.getAST().newModifier(ModifierKeyword.PUBLIC_KEYWORD));
		}
		modifiers.add(imRewrite.getAST().newModifier(ModifierKeyword.STATIC_KEYWORD));

		// Parameters
		String targetParameterName= StubUtility.suggestArgumentName(getProject(), fIntermediaryFirstParameterType.getName(), fTargetMethod.getParameterNames());

		ImportRewriteContext context= new ContextSensitiveImportRewriteContext(type, imRewrite.getImportRewrite());
		if (!isStaticTarget()) {
			// Add first param
			SingleVariableDeclaration parameter= imRewrite.getAST().newSingleVariableDeclaration();
			Type t= imRewrite.getImportRewrite().addImport(fIntermediaryFirstParameterType, imRewrite.getAST(), context);
			if (fIntermediaryFirstParameterType.isGenericType()) {
				ParameterizedType parameterized= imRewrite.getAST().newParameterizedType(t);
				ITypeBinding[] typeParameters= fIntermediaryFirstParameterType.getTypeParameters();
				for (int i= 0; i < typeParameters.length; i++)
					parameterized.typeArguments().add(imRewrite.getImportRewrite().addImport(typeParameters[i], imRewrite.getAST()));
				t= parameterized;
			}
			parameter.setType(t);
			parameter.setName(imRewrite.getAST().newSimpleName(targetParameterName));
			intermediary.parameters().add(parameter);
		}
		// Add other params
		copyArguments(intermediary, imRewrite);

		// Add type parameters of declaring type (and enclosing types)
		if (!isStaticTarget() && fIntermediaryFirstParameterType.isGenericType())
			addTypeParameters(imRewrite, intermediary.typeParameters(), fIntermediaryFirstParameterType);

		// Add type params of method
		copyTypeParameters(intermediary, imRewrite);

		// Return type
		intermediary.setReturnType2(imRewrite.getImportRewrite().addImport(fTargetMethodBinding.getReturnType(), ast, context));

		// Exceptions
		copyExceptions(intermediary, imRewrite);

		// Body
		MethodInvocation invocation= imRewrite.getAST().newMethodInvocation();
		invocation.setName(imRewrite.getAST().newSimpleName(fTargetMethod.getElementName()));
		if (isStaticTarget()) {
			Type importedType= imRewrite.getImportRewrite().addImport(fTargetMethodBinding.getDeclaringClass(), ast, context);
			invocation.setExpression(ASTNodeFactory.newName(ast, ASTNodes.asString(importedType)));
		} else {
			invocation.setExpression(imRewrite.getAST().newSimpleName(targetParameterName));
		}
		copyInvocationParameters(invocation, ast);
		Statement call= encapsulateInvocation(intermediary, invocation);

		final Block body= imRewrite.getAST().newBlock();
		body.statements().add(call);
		intermediary.setBody(body);

		// method comment
		ICompilationUnit targetCU= imRewrite.getCu();
		if (StubUtility.doAddComments(targetCU.getJavaProject())) {
			String comment= CodeGeneration.getMethodComment(targetCU, getIntermediaryTypeName(), intermediary, null, StubUtility.getLineDelimiterUsed(targetCU));
			if (comment != null) {
				Javadoc javadoc= (Javadoc) imRewrite.getASTRewrite().createStringPlaceholder(comment, ASTNode.JAVADOC);
				intermediary.setJavadoc(javadoc);
			}
		}

		// Add the completed method to the intermediary type:
		ChildListPropertyDescriptor typeBodyDeclarationsProperty= typeToBodyDeclarationProperty(fIntermediaryType, imRewrite.getRoot());

		ListRewrite bodyDeclarationsListRewrite= imRewrite.getASTRewrite().getListRewrite(type, typeBodyDeclarationsProperty);
		bodyDeclarationsListRewrite.insertAt(intermediary, ASTNodes.getInsertionIndex(intermediary, type.bodyDeclarations()), imRewrite
				.createGroupDescription(RefactoringCoreMessages.IntroduceIndirectionRefactoring_group_description_create_new_method));
	}
 

@SuppressWarnings("unchecked")
@Override
public boolean visit(MethodDeclaration node) {
	AbstractMethod method = new AbstractMethod();
	method.setConstructor(node.isConstructor());
	method.setVarargs(node.isVarargs());

	StringBuilder builder = null;
	builder = new StringBuilder();
	builder.append(node.getName().getIdentifier()).append("(");

	List<AbstractParameter> params = new ArrayList<>();
	for (SingleVariableDeclaration var : (List<SingleVariableDeclaration>) node.parameters()) {
		IVariableBinding varBind = var.resolveBinding();
		AbstractParameter param = new AbstractParameter(varBind.getType().getQualifiedName(), varBind.getName());
		params.add(param);
		builder.append(param.getType() + ",");
	}

	if (builder.substring(builder.length() - 1).equals(",")) {
		builder.replace(builder.length() - 1, builder.length(), ")");
	} else {
		builder.append(")");
	}

	method.setName(builder.toString());
	method.setParameters(params);
	verifyAccessorMethod(method);

	List<String> throwsList = new ArrayList<String>();
	List<Type> types = node.thrownExceptionTypes();
	for (Type type : types) {
		throwsList.add(type.toString());
	}
	method.setThrownsExceptions(throwsList);

	List<String> modifiers = new ArrayList<String>();
	for (Object modifier : node.modifiers()) {
		modifiers.add(modifier.toString());
	}
	method.setModifiers(modifiers);

	if (node.getBody() != null) {
		MethodVisitor visitor = new MethodVisitor();
		node.getBody().accept(visitor);
		method.setMaxDepth(visitor.getMaxDepth());
		method.setStatements(visitor.getStatements());
	} else {
		method.setStatements(new ArrayList<AbstractStatement>());
	}

	if (node.getReturnType2() != null) {
		ITypeBinding bind = node.getReturnType2().resolveBinding();
		if (bind != null)
		method.setReturnType(bind.getQualifiedName());
	}

	method.setStartPosition(node.getStartPosition());
	method.setEndPosition(node.getStartPosition() + node.getLength() - 1);
	
	methods.add(method);
	return true;
}