Examples with JavaClass org.apache.bcel.classfile.JavaClass used on opensource projects

Example 86 with JavaClass

use of org.apache.bcel.classfile.JavaClass in project contribution by checkstyle.

the class UnusedMethodCheck method leaveSet.

/**
 * @see com.puppycrawl.tools.checkstyle.bcel.IObjectSetVisitor
 */
public void leaveSet(Set aJavaClasses) {
    final Iterator it = aJavaClasses.iterator();
    while (it.hasNext()) {
        final JavaClass javaClass = (JavaClass) it.next();
        final String className = javaClass.getClassName();
        final JavaClassDefinition classDef = findJavaClassDef(javaClass);
        final MethodDefinition[] methodDefs = classDef.getMethodDefs();
        for (int i = 0; i < methodDefs.length; i++) {
            if (!classDef.hasReference(methodDefs[i], getReferenceDAO())) {
                final Method method = methodDefs[i].getMethod();
                if (!ignore(className, method)) {
                    log(javaClass, 0, "unused.method", new Object[] { methodDefs[i] });
                }
            }
        }
    }
}

Example 87 with JavaClass

use of org.apache.bcel.classfile.JavaClass in project contribution by checkstyle.

the class JavaClassDefinition method hasReference.

/**
 * Determines whether there is reference to a given Method in this JavaClass
 * definition or a definition in a superclass.
 * @param aMethodDef the Method to check.
 * @param aReferenceDAO reference DAO.
 * @return true if there is a reference to the method of aMethodDef in
 * this JavaClass or a superclass.
 */
public boolean hasReference(MethodDefinition aMethodDef, ReferenceDAO aReferenceDAO) {
    final String methodName = aMethodDef.getName();
    final Type[] argTypes = aMethodDef.getArgumentTypes();
    // search the inheritance hierarchy
    JavaClass currentJavaClass = getJavaClass();
    while (currentJavaClass != null) {
        final JavaClassDefinition javaClassDef = aReferenceDAO.findJavaClassDef(currentJavaClass);
        if (javaClassDef != null) {
            final MethodDefinition methodDef = javaClassDef.findNarrowestMethod(getJavaClass().getClassName(), methodName, argTypes);
            if ((methodDef != null) && (methodDef.hasReference(getJavaClass()))) {
                return true;
            }
        }
        currentJavaClass = currentJavaClass.getSuperClass();
    }
    return false;
}

Example 88 with JavaClass

use of org.apache.bcel.classfile.JavaClass in project contribution by checkstyle.

the class ReferenceDAO method findFieldDef.

/**
 * Finds the definition of the field of a field reference.
 * @param aFieldRef the reference to a field.
 * @return the definition of the field for aFieldRef.
 */
public FieldDefinition findFieldDef(FieldReference aFieldRef) {
    final String className = aFieldRef.getClassName();
    JavaClass javaClass = Repository.lookupClass(className);
    final String fieldName = aFieldRef.getName();
    // search up the class hierarchy for the class containing the
    // method definition.
    FieldDefinition result = null;
    while ((javaClass != null) && (result == null)) {
        final JavaClassDefinition javaClassDef = (JavaClassDefinition) mJavaClasses.get(javaClass);
        if (javaClassDef != null) {
            result = javaClassDef.findFieldDef(fieldName);
        }
        // search the parent
        javaClass = javaClass.getSuperClass();
    }
    return result;
}

Example 89 with JavaClass

use of org.apache.bcel.classfile.JavaClass in project contribution by checkstyle.

the class ReferenceDAO method addFieldReference.

/**
 * Adds a reference to a field.
 * @param aFieldRef the field reference.
 */
public void addFieldReference(FieldReference aFieldRef) {
    final String className = aFieldRef.getClassName();
    JavaClass javaClass = Repository.lookupClass(className);
    final String fieldName = aFieldRef.getName();
    // search up the class hierarchy for the class containing the
    // method definition.
    FieldDefinition fieldDef = null;
    while ((javaClass != null) && (fieldDef == null)) {
        final JavaClassDefinition javaClassDef = (JavaClassDefinition) mJavaClasses.get(javaClass);
        if (javaClassDef != null) {
            fieldDef = javaClassDef.findFieldDef(fieldName);
            if (fieldDef != null) {
                fieldDef.addReference(aFieldRef);
            }
        }
        // search the parent
        javaClass = javaClass.getSuperClass();
    }
}

Example 90 with JavaClass

use of org.apache.bcel.classfile.JavaClass in project android-classyshark by google.

the class RootBuilder method fillFromJar.

private ClassNode fillFromJar(File file) {
    ClassNode rootNode = new ClassNode(file.getName());
    try {
        JarFile theJar = new JarFile(file);
        Enumeration<? extends JarEntry> en = theJar.entries();
        while (en.hasMoreElements()) {
            JarEntry entry = en.nextElement();
            if (entry.getName().endsWith(".class")) {
                ClassParser cp = new ClassParser(theJar.getInputStream(entry), entry.getName());
                JavaClass jc = cp.parse();
                ClassInfo classInfo = new ClassInfo(jc.getClassName(), jc.getMethods().length);
                rootNode.add(classInfo);
            }
        }
    } catch (IOException e) {
        System.err.println("Error reading file: " + file + ". " + e.getMessage());
        e.printStackTrace(System.err);
    }
    return rootNode;
}