Example usage for org.eclipse.jdt.core.util IConstantPoolEntry getClassInfoName

Introduction

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

Prototype

char[] getClassInfoName();

Source Link

Document

Returns the class name for a CONSTANT_Class type entry.

Usage

From source file:com.siteview.mde.internal.ui.search.dependencies.PackageFinder.java

License:Open Source License

static void computeReferencedTypes(IClassFileReader cfr, Set packages) {

    char[][] interfaces = cfr.getInterfaceNames();
    if (interfaces != null) {
        for (int i = 0; i < interfaces.length; i++) {
            //note: have to convert names like Ljava/lang/Object; to java.lang.Object
            packages.add(getPackage(new String(interfaces[i]).replace('/', '.')));
        }/*from   w ww. jav a  2  s. com*/
    }

    char[] scn = cfr.getSuperclassName();
    if (scn != null) {
        packages.add(getPackage(new String(scn).replace('/', '.')));
    }

    IFieldInfo[] fieldInfo = cfr.getFieldInfos();
    for (int i = 0; i < fieldInfo.length; i++) {

        String fieldName = new String(fieldInfo[i].getDescriptor());
        if (!isPrimitiveTypeSignature(fieldName)) {
            String fieldDescriptor = extractFullyQualifiedTopLevelType(fieldName);
            packages.add(getPackage(new String(fieldDescriptor)));
        }
    }

    IMethodInfo[] methodInfo = cfr.getMethodInfos();
    for (int i = 0; i < methodInfo.length; i++) {
        IExceptionAttribute exceptionAttribute = methodInfo[i].getExceptionAttribute();
        if (exceptionAttribute != null) {
            char[][] exceptionNames = exceptionAttribute.getExceptionNames();
            for (int j = 0; j < exceptionNames.length; j++) {
                packages.add(getPackage(new String(exceptionNames[j]).replace('/', '.')));
            }
        }

        String descriptor = new String(methodInfo[i].getDescriptor());
        //add parameter types
        String[] parameterTypes = Signature.getParameterTypes(descriptor);
        for (int j = 0; j < parameterTypes.length; j++) {
            //have to parse to convert [Ljava/lang/String; to java.lang.String
            if (!isPrimitiveTypeSignature(parameterTypes[j])) {
                packages.add(getPackage(new String(extractFullyQualifiedTopLevelType(parameterTypes[j]))));
            }
        }
        //add return type
        String returnType = Signature.getReturnType(descriptor);
        if (!isPrimitiveTypeSignature(returnType)) {
            returnType = extractFullyQualifiedTopLevelType(returnType);
            packages.add(getPackage(returnType));
        }
    }

    // Is there more to extract from the constant pool??
    IConstantPoolEntry entry;
    IConstantPool pool = cfr.getConstantPool();
    int length = pool.getConstantPoolCount();
    for (int i = 1; i < length; i++) {
        switch (pool.getEntryKind(i)) {
        case IConstantPoolConstant.CONSTANT_Class:
            // add reference to the class
            entry = pool.decodeEntry(i);
            //note: may have to convert names like Ljava/lang/Object; to java.lang.Object
            String className = new String(entry.getClassInfoName()).replace('/', '.');
            className = className.indexOf(';') >= 0 ? extractFullyQualifiedTopLevelType(className) : className;
            packages.add(getPackage(className));
            break;

        case IConstantPoolConstant.CONSTANT_NameAndType:
            // add reference to the name and type
            entry = pool.decodeEntry(i);
            int descIndex = entry.getNameAndTypeInfoDescriptorIndex();
            if (pool.getEntryKind(descIndex) == IConstantPoolConstant.CONSTANT_Utf8) {
                entry = pool.decodeEntry(descIndex);
                char[] type = entry.getUtf8Value();
                if (type[0] == '(') {
                    // Method signature.

                    //add parameter types
                    String descriptor = new String(type);
                    String[] parameterTypes = Signature.getParameterTypes(descriptor);
                    for (int j = 0; j < parameterTypes.length; j++) {
                        if (!isPrimitiveTypeSignature(parameterTypes[j])) {
                            packages.add(getPackage(extractFullyQualifiedTopLevelType(parameterTypes[j])));
                        }
                    }
                    //add return type
                    String returnType = Signature.getReturnType(descriptor);
                    if (!isPrimitiveTypeSignature(returnType)) {
                        returnType = extractFullyQualifiedTopLevelType(returnType);
                        packages.add(getPackage(returnType));
                    }

                } else {
                    // Field type.
                    String typeString = new String(type);
                    if (!isPrimitiveTypeSignature(typeString)) {
                        packages.add(getPackage(extractFullyQualifiedTopLevelType(typeString)));
                    }
                }
            }
            break;
        }
    }
    packages.remove(""); // removes default package if it exists //$NON-NLS-1$
}

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From source file:edu.uci.ics.sourcerer.tools.java.extractor.eclipse.NamingAdvisor.java

License:Open Source License

private void addClassFile(IClassFile classFile) {
    IClassFileReader reader = ToolFactory.createDefaultClassFileReader(classFile,
            IClassFileReader.CONSTANT_POOL | IClassFileReader.METHOD_INFOS);
    IConstantPool constants = reader.getConstantPool();
    for (int i = 0, max = constants.getConstantPoolCount(); i < max; i++) {
        switch (constants.getEntryKind(i)) {
        case IConstantPoolConstant.CONSTANT_Class: {
            IConstantPoolEntry constant = constants.decodeEntry(i);
            addClass(new String(constant.getClassInfoName()).replace('/', '.'));
            break;
        }//from  w w w . ja  v a2  s.c o  m
        case IConstantPoolConstant.CONSTANT_Fieldref: {
            IConstantPoolEntry constant = constants.decodeEntry(i);
            addClassSig(constant.getFieldDescriptor());
            break;
        }
        case IConstantPoolConstant.CONSTANT_Methodref: {
            IConstantPoolEntry constant = constants.decodeEntry(i);
            addMethod(new String(constant.getClassName()), new String(constant.getMethodName()),
                    constant.getMethodDescriptor());
            break;
        }
        case IConstantPoolConstant.CONSTANT_InterfaceMethodref: {
            IConstantPoolEntry constant = constants.decodeEntry(i);
            addMethod(new String(constant.getClassName()), new String(constant.getMethodName()),
                    constant.getMethodDescriptor());
            break;
        }
        default:
        }
    }

    // Add the method parameter / return types
    for (IMethodInfo method : reader.getMethodInfos()) {
        for (char[] p : Signature.getParameterTypes(method.getDescriptor())) {
            addClassSig(p);
        }
        addClassSig(Signature.getReturnType(method.getDescriptor()));
    }
}

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From source file:org.eclipse.ant.internal.ui.datatransfer.SourceAnalyzer.java

License:Open Source License

/**
 * Find all classes that are required by given class file.
 * //www . j  ava2 s . co  m
 * @param file
 *            a ".class" file
 * @return set of strings, each contains a full qualified class name (forward slash as package separator)
 */
public static Set<String> getRequiredClasses(IFile file) {
    Set<String> classes = new TreeSet<>();
    IClassFile classFile = JavaCore.createClassFileFrom(file);
    IClassFileReader reader = ToolFactory.createDefaultClassFileReader(classFile,
            IClassFileReader.CONSTANT_POOL);
    if (reader == null) {
        // class not compiled
        return classes;
    }
    IConstantPool pool = reader.getConstantPool();
    for (int i = 0; i < pool.getConstantPoolCount(); i++) {
        if (pool.getEntryKind(i) == IConstantPoolConstant.CONSTANT_Class) {
            IConstantPoolEntry entry = pool.decodeEntry(i);
            String classname = new String(entry.getClassInfoName());
            // don't return inner classes
            int index = classname.indexOf('$');
            if (index != -1) {
                classname = classname.substring(0, index);
            }
            classes.add(classname);
        }
    }
    return classes;
}

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From source file:org.eclipse.pde.internal.ui.search.dependencies.PackageFinder.java

License:Open Source License

static void computeReferencedTypes(IClassFileReader cfr, Set<String> packages) {

    char[][] interfaces = cfr.getInterfaceNames();
    if (interfaces != null) {
        for (int i = 0; i < interfaces.length; i++) {
            //note: have to convert names like Ljava/lang/Object; to java.lang.Object
            packages.add(getPackage(new String(interfaces[i]).replace('/', '.')));
        }/*from  ww  w  .  j a v  a  2s.  c o m*/
    }

    char[] scn = cfr.getSuperclassName();
    if (scn != null) {
        packages.add(getPackage(new String(scn).replace('/', '.')));
    }

    IFieldInfo[] fieldInfo = cfr.getFieldInfos();
    for (int i = 0; i < fieldInfo.length; i++) {

        String fieldName = new String(fieldInfo[i].getDescriptor());
        if (!isPrimitiveTypeSignature(fieldName)) {
            String fieldDescriptor = extractFullyQualifiedTopLevelType(fieldName);
            packages.add(getPackage(new String(fieldDescriptor)));
        }
    }

    IMethodInfo[] methodInfo = cfr.getMethodInfos();
    for (int i = 0; i < methodInfo.length; i++) {
        IExceptionAttribute exceptionAttribute = methodInfo[i].getExceptionAttribute();
        if (exceptionAttribute != null) {
            char[][] exceptionNames = exceptionAttribute.getExceptionNames();
            for (int j = 0; j < exceptionNames.length; j++) {
                packages.add(getPackage(new String(exceptionNames[j]).replace('/', '.')));
            }
        }

        String descriptor = new String(methodInfo[i].getDescriptor());
        //add parameter types
        String[] parameterTypes = Signature.getParameterTypes(descriptor);
        for (int j = 0; j < parameterTypes.length; j++) {
            //have to parse to convert [Ljava/lang/String; to java.lang.String
            if (!isPrimitiveTypeSignature(parameterTypes[j])) {
                packages.add(getPackage(new String(extractFullyQualifiedTopLevelType(parameterTypes[j]))));
            }
        }
        //add return type
        String returnType = Signature.getReturnType(descriptor);
        if (!isPrimitiveTypeSignature(returnType)) {
            returnType = extractFullyQualifiedTopLevelType(returnType);
            packages.add(getPackage(returnType));
        }
    }

    // Is there more to extract from the constant pool??
    IConstantPoolEntry entry;
    IConstantPool pool = cfr.getConstantPool();
    int length = pool.getConstantPoolCount();
    for (int i = 1; i < length; i++) {
        switch (pool.getEntryKind(i)) {
        case IConstantPoolConstant.CONSTANT_Class:
            // add reference to the class
            entry = pool.decodeEntry(i);
            //note: may have to convert names like Ljava/lang/Object; to java.lang.Object
            String className = new String(entry.getClassInfoName()).replace('/', '.');
            className = className.indexOf(';') >= 0 ? extractFullyQualifiedTopLevelType(className) : className;
            packages.add(getPackage(className));
            break;

        case IConstantPoolConstant.CONSTANT_NameAndType:
            // add reference to the name and type
            entry = pool.decodeEntry(i);
            int descIndex = entry.getNameAndTypeInfoDescriptorIndex();
            if (pool.getEntryKind(descIndex) == IConstantPoolConstant.CONSTANT_Utf8) {
                entry = pool.decodeEntry(descIndex);
                char[] type = entry.getUtf8Value();
                if (type[0] == '(') {
                    // Method signature.

                    //add parameter types
                    String descriptor = new String(type);
                    String[] parameterTypes = Signature.getParameterTypes(descriptor);
                    for (int j = 0; j < parameterTypes.length; j++) {
                        if (!isPrimitiveTypeSignature(parameterTypes[j])) {
                            packages.add(getPackage(extractFullyQualifiedTopLevelType(parameterTypes[j])));
                        }
                    }
                    //add return type
                    String returnType = Signature.getReturnType(descriptor);
                    if (!isPrimitiveTypeSignature(returnType)) {
                        returnType = extractFullyQualifiedTopLevelType(returnType);
                        packages.add(getPackage(returnType));
                    }

                } else {
                    // Field type.
                    String typeString = new String(type);
                    if (!isPrimitiveTypeSignature(typeString)) {
                        packages.add(getPackage(extractFullyQualifiedTopLevelType(typeString)));
                    }
                }
            }
            break;
        }
    }
    packages.remove(""); // removes default package if it exists //$NON-NLS-1$
}

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From source file:org.seasar.diigu.eclipse.operation.NameEnhanceJob.java

License:Apache License

public static IResource toSource(IClassFile clazz) throws CoreException {
    IJavaProject project = clazz.getJavaProject();
    IClassFileReader reader = ToolFactory.createDefaultClassFileReader(clazz, IClassFileReader.CONSTANT_POOL);
    if (reader != null) {
        IConstantPool pool = reader.getConstantPool();
        for (int i = 0; i < pool.getConstantPoolCount(); i++) {
            if (pool.getEntryKind(i) == IConstantPoolConstant.CONSTANT_Class) {
                IConstantPoolEntry entry = pool.decodeEntry(i);
                char[] data = entry.getClassInfoName();
                String name = String.valueOf(data);
                name = name.replace('/', '.');
                IType type = project.findType(name);
                if (type != null && type.isBinary() == false) {
                    return type.getResource();
                }/*from w w  w.ja  va2  s . com*/
            }
        }
    }
    return null;
}

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