org.apache.aries.proxy.impl.common.ConstructorFinder.java Source code

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Here is the source code for org.apache.aries.proxy.impl.common.ConstructorFinder.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.aries.proxy.impl.common;

import static org.objectweb.asm.Opcodes.ACC_PRIVATE;

import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.Type;

public class ConstructorFinder extends ClassVisitor {

    private boolean hasNoArgsConstructor = false;

    public boolean hasNoArgsConstructor() {
        return hasNoArgsConstructor;
    }

    public ConstructorFinder() {
        super(Opcodes.ASM5);
    }

    @Override
    public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
        if ("<init>".equals(name)) {
            if (Type.getArgumentTypes(desc).length == 0 && (access & ACC_PRIVATE) == 0)
                hasNoArgsConstructor = true;
        }
        return null;
    }
}