Class_info.java

/*
 *  Copyright (c) 2001-2024, Jean Tessier
 *  All rights reserved.
 *  
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *  
 *      * Redistributions of source code must retain the above copyright
 *        notice, this list of conditions and the following disclaimer.
 *  
 *      * Redistributions in binary form must reproduce the above copyright
 *        notice, this list of conditions and the following disclaimer in the
 *        documentation and/or other materials provided with the distribution.
 *  
 *      * Neither the name of Jean Tessier nor the names of his contributors
 *        may be used to endorse or promote products derived from this software
 *        without specific prior written permission.
 *  
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR
 *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 *  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.jeantessier.classreader.impl;

import java.io.*;

import com.jeantessier.classreader.*;

public class Class_info extends ConstantPoolEntry implements com.jeantessier.classreader.Class_info {
    private final int nameIndex;

    public Class_info(ConstantPool constantPool, DataInput in) throws IOException {
        super(constantPool);

        nameIndex = in.readUnsignedShort();
    }

    /**
     * For testing only
     */
    Class_info(ConstantPool constantPool, int nameIndex) {
        super(constantPool);

        this.nameIndex = nameIndex;
    }

    public int getNameIndex() {
        return nameIndex;
    }

    public UTF8_info getRawName() {
        return (UTF8_info) getConstantPool().get(getNameIndex());
    }

    public String getName() {
        return ClassNameHelper.convertClassName(getRawName().getValue());
    }

    public String getPackageName() {
        String result = "";

        String name = getName();
        int pos = name.lastIndexOf(".");
        if (pos != -1) {
            result = name.substring(0, pos);
        }

        return result;
    }

    public String getSimpleName() {
        String name = getName();
        return name.substring(name.lastIndexOf(".") + 1);
    }

    public String toString() {
        return getName();
    }

    public int hashCode() {
        return getRawName().hashCode();
    }

    public boolean equals(Object object) {
        if (this == object) {
            return true;
        }

        if (object == null || getClass() != object.getClass()) {
            return false;
        }

        return getRawName().equals(((Class_info) object).getRawName());
    }

    public void accept(Visitor visitor) {
        visitor.visitClass_info(this);
    }
}