com.google.test.metric.asm.ClassInfoBuilderVisitor.java Source code

Introduction

Here is the source code for com.google.test.metric.asm.ClassInfoBuilderVisitor.java

Source

/*
 * Copyright 2007 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.google.test.metric.asm;

import java.util.ArrayList;
import java.util.List;

import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;

import com.google.test.metric.ClassInfo;
import com.google.test.metric.JavaClassRepository;

public class ClassInfoBuilderVisitor extends NoopClassVisitor {

    private final JavaClassRepository repository;
    private ClassInfo classInfo;
    private JavaNamer namer = new JavaNamer();

    public ClassInfoBuilderVisitor(JavaClassRepository repository) {
        this.repository = repository;
    }

    @Override
    public void visit(int version, int access, String name, String signature, String superName,
            String[] interfaces) {
        ClassInfo superClass = null;
        superClass = superName == null ? null : repository.getClass(namer.nameClass(superName));

        List<ClassInfo> interfaceList = new ArrayList<ClassInfo>();
        for (String interfaze : interfaces) {
            interfaceList.add(repository.getClass(namer.nameClass(interfaze)));
        }
        boolean isInterface = (access & Opcodes.ACC_INTERFACE) == Opcodes.ACC_INTERFACE;
        classInfo = new ClassInfo(namer.nameClass(name), isInterface, superClass, interfaceList,
                guessSourceFileName(name));
        repository.addClass(classInfo);
    }

    public String guessSourceFileName(String className) {
        className = className.replace('.', '/');

        int internalClassDelim = className.indexOf('$');
        if (internalClassDelim > -1) {
            className = className.substring(0, internalClassDelim);
        }
        return className + ".java";
    }

    @Override
    public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
        boolean isStatic = (access & Opcodes.ACC_STATIC) == Opcodes.ACC_STATIC;
        boolean isFinal = (access & Opcodes.ACC_FINAL) == Opcodes.ACC_FINAL;
        return new MethodVisitorBuilder(repository, classInfo, name, desc, signature, exceptions, isStatic, isFinal,
                JavaVisibility.valueFromJavaBytecode(access));
    }

    @Override
    public FieldVisitor visitField(int access, String name, String desc, String signature, Object value) {
        return new FieldVisitorBuilder(classInfo, access, name, desc, signature, value);
    }

    public ClassInfo getClassInfo() {
        return classInfo;
    }

}