Example usage for org.eclipse.jdt.core.util IMethodInfo getAttributes

Introduction

In this page you can find the example usage for org.eclipse.jdt.core.util IMethodInfo getAttributes.

Prototype

IClassFileAttribute[] getAttributes();

Source Link

Document

Answer back the collection of all attributes of the method info.

Usage

From source file:com.inepex.classtemplater.plugin.logic.Annotation.java

License:Eclipse Public License

public Annotation(IAnnotation jdtAnnotation, ICompilationUnit compilationUnit) throws Exception {
    this.compilationUnit = compilationUnit;
    name = jdtAnnotation.getElementName();

    //default values aren't found in JDT so using AST to get them
    String[][] type = compilationUnit.findPrimaryType().resolveType(jdtAnnotation.getElementName());
    if (type != null) {
        IType annType = jdtAnnotation.getJavaProject().findType(type[0][0] + "." + type[0][1]);

        //hint to read annotation default value from a classfile
        //                  

        if (annType.getCompilationUnit() != null) {
            AnnotationASTVisitor annASTVisitor = new AnnotationASTVisitor();
            ASTParser parser = ASTParser.newParser(AST.JLS3);
            parser.setKind(ASTParser.K_COMPILATION_UNIT);
            parser.setSource(annType.getCompilationUnit());
            parser.setResolveBindings(true);
            CompilationUnit aParser = (CompilationUnit) parser.createAST(null);
            aParser.accept(annASTVisitor);
            Map<String, Object> defaultValues = annASTVisitor.getDefaultValueObjects();
            for (Entry<String, Object> entry : defaultValues.entrySet()) {
                paramObjects.put(entry.getKey(), entry.getValue());
                params.put(entry.getKey(), String.valueOf(entry.getValue()));
            }/*from   w  w w  . j a v  a2 s .  c  om*/
        } else {
            //read annotation default value from .class file
            IClassFileReader reader = ToolFactory.createDefaultClassFileReader(annType.getClassFile(),
                    IClassFileReader.ALL);
            if (reader != null) {
                for (IMethodInfo methodInfo : reader.getMethodInfos()) {
                    if (methodInfo.getAttributes().length > 0
                            && methodInfo.getAttributes()[0] instanceof AnnotationDefaultAttribute) {
                        String name = new String(methodInfo.getName());
                        Object value = parseDefaultObjectValueFromAnnotationDefaultAttribute(
                                (AnnotationDefaultAttribute) (methodInfo.getAttributes()[0]),
                                new String(methodInfo.getDescriptor()));
                        if (value != null) {
                            paramObjects.put(name, value);
                            params.put(name, String.valueOf(value));
                        }
                    }
                    //                  System.out.println(methodInfo.getName());

                }
            }
        }
    }

    for (IMemberValuePair pair : jdtAnnotation.getMemberValuePairs()) {
        try {
            params.put(pair.getMemberName(), String.valueOf(pair.getValue()));
            paramObjects.put(pair.getMemberName(), pair.getValue());
        } catch (ClassCastException e) {
            Log.log("Could not cast value of annotation-attribute: " + name + ", " + pair.getMemberName()
                    + ". \n" + "Only string values can be used for annotation-attribute");
        }
    }
}

---