org.springframework.cglib.core.ClassNameReader Maven / Gradle / Ivy
/*
* Copyright 2003 The Apache Software Foundation
*
* 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
*
* https://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 org.springframework.cglib.core;
import java.util.ArrayList;
import java.util.List;
import org.springframework.asm.ClassReader;
import org.springframework.asm.ClassVisitor;
// TODO: optimize (ClassReader buffers entire class before accept)
@SuppressWarnings({"rawtypes", "unchecked"})
public class ClassNameReader {
private ClassNameReader() {
}
private static final EarlyExitException EARLY_EXIT = new EarlyExitException();
@SuppressWarnings("serial")
private static class EarlyExitException extends RuntimeException {
}
public static String getClassName(ClassReader r) {
return getClassInfo(r)[0];
}
public static String[] getClassInfo(ClassReader r) {
final List array = new ArrayList<>();
try {
r.accept(new ClassVisitor(Constants.ASM_API, null) {
@Override
public void visit(int version,
int access,
String name,
String signature,
String superName,
String[] interfaces) {
array.add(name.replace('/', '.'));
if (superName != null) {
array.add(superName.replace('/', '.'));
}
for (String element : interfaces) {
array.add(element.replace('/', '.'));
}
throw EARLY_EXIT;
}
}, ClassReader.SKIP_DEBUG | ClassReader.SKIP_FRAMES);
} catch (EarlyExitException e) { }
return array.toArray(new String[0]);
}
}