Example usage for org.eclipse.jdt.core.compiler ITerminalSymbols TokenNameAT

Introduction

In this page you can find the example usage for org.eclipse.jdt.core.compiler ITerminalSymbols TokenNameAT.

Prototype

int TokenNameAT

To view the source code for org.eclipse.jdt.core.compiler ITerminalSymbols TokenNameAT.

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Document

"@" token (added in J2SE 1.5).

Usage

From source file:org.j2eespider.util.AnnotationUtil.java

License:Open Source License

/**
 * Replace annotations in method.//w  w  w .j  a v  a2s  . c  o  m
 */
public static void replaceAnnotationsInMethod(IMethod imethod, List<ValidatorType> annotations,
        String textNewAnnotations) {

    try {
        //monta o scanner do metodo
        IBuffer methodBuffer = imethod.getOpenable().getBuffer();
        ISourceRange sourceRange = imethod.getSourceRange();
        ISourceRange javadocRange = null;//imethod.getJavadocRange();
        ISourceRange nameRange = imethod.getNameRange();
        IScanner scanner = null; // delay initialization

        if (sourceRange != null && nameRange != null) {
            if (scanner == null) {
                scanner = ToolFactory.createScanner(false, false, true, false);
                scanner.setSource(methodBuffer.getCharacters());
            }
            scanner.resetTo(sourceRange.getOffset(), nameRange.getOffset());
        }

        //apaga todas as annotations que esto em annotationsType e adiciona textNewAnnotations
        StringBuffer sourceMethod = new StringBuffer();
        int tok = scanner.getNextToken();
        while (tok != ITerminalSymbols.TokenNameprivate && tok != ITerminalSymbols.TokenNameprotected
                && tok != ITerminalSymbols.TokenNamepublic) { //loop nas annotations

            if (tok == ITerminalSymbols.TokenNameAT) { //encontrou o inicio de uma annotation
                StringBuffer thisAnnotation = new StringBuffer("@");
                tok = scanner.getNextToken();

                //trabalha todo o contedo da annotation
                while (tok != ITerminalSymbols.TokenNameAT && tok != ITerminalSymbols.TokenNameprivate
                        && tok != ITerminalSymbols.TokenNameprotected
                        && tok != ITerminalSymbols.TokenNamepublic) { //pega todo o conteudo desta annotation
                    thisAnnotation.append(scanner.getCurrentTokenSource()); //pega o nome dessa annotation
                    tok = scanner.getNextToken();
                }

                //verifica se  para apagar essa annotation (s joga no novo sourceMethod se ela no tiver na lista que  para apagar)
                if (!ValidatorUtil.containsValidator(annotations, thisAnnotation.toString())) {
                    sourceMethod.append(thisAnnotation);
                }
            }

        }

        //grava o resto do metodo         
        int posStartMethod = scanner.getCurrentTokenStartPosition();
        int lengthRemoved = posStartMethod - sourceRange.getOffset(); //conta quantos caracteres foram removidos desse metodo (as annotations)
        String codeRemain = String.valueOf(scanner.getSource()).substring(posStartMethod,
                posStartMethod + sourceRange.getLength() - lengthRemoved);
        if (!sourceMethod.toString().equals("")
                && sourceMethod.toString().lastIndexOf("\n") != sourceMethod.toString().length() - 1) { //se j tem alguma annotation, ve se precisa de quebra de linha
            sourceMethod.append("\n\t");
        }
        sourceMethod.append(textNewAnnotations); //adiciona as novas annotations antes do resto do mtodo
        sourceMethod.append(codeRemain);

        if (javadocRange != null) { //se tiver javadoc, no altera ele...
            methodBuffer.replace(sourceRange.getOffset() + javadocRange.getLength(),
                    sourceRange.getLength() - javadocRange.getLength(), "\t" + sourceMethod.toString()); //altera o cdigo do mtodo
        } else {
            methodBuffer.replace(sourceRange.getOffset(), sourceRange.getLength(), sourceMethod.toString()); //altera o cdigo do mtodo
        }

        imethod.getOpenable().save(null, true);
    } catch (JavaModelException e) {
    } catch (InvalidInputException e) {
    }

}

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From source file:org.j2eespider.util.AnnotationUtil.java

License:Open Source License

private static boolean findAnnotation(IScanner scanner, String annotationName) throws InvalidInputException {
    String simpleName = Signature.getSimpleName(annotationName);
    StringBuffer buf = new StringBuffer();
    int tok = scanner.getNextToken();
    while (tok != ITerminalSymbols.TokenNameEOF) {
        if (tok == ITerminalSymbols.TokenNameAT) {
            buf.setLength(0);//from  ww  w .ja  v a 2 s  . co m
            tok = readName(scanner, buf);
            String name = buf.toString();
            if (name.equals(annotationName) || name.equals(simpleName) || name.endsWith('.' + simpleName)) {
                return true;
            }
        } else {
            tok = scanner.getNextToken();
        }
    }
    return false;
}

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