corba/src/share/classes/com/sun/corba/se/impl/orbutil/LegacyHookGetFields.java

/*
 * Copyright (c) 2001, 2002, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 */
package com.sun.corba.se.impl.orbutil;

import java.io.*;
import java.util.Hashtable;

class LegacyHookGetFields extends ObjectInputStream.GetField {
    private Hashtable fields = null;

    LegacyHookGetFields(Hashtable fields){
        this.fields = fields;
    }

    /**
     * Get the ObjectStreamClass that describes the fields in the stream.
     */
    public java.io.ObjectStreamClass getObjectStreamClass() {
        return null;
    }

    /**
     * Return true if the named field is defaulted and has no value
     * in this stream.
     */
    public boolean defaulted(String name)
        throws IOException, IllegalArgumentException  {
        return (!fields.containsKey(name));
    }

    /**
     * Get the value of the named boolean field from the persistent field.
     */
    public boolean get(String name, boolean defvalue)
        throws IOException, IllegalArgumentException {
        if (defaulted(name))
            return defvalue;
        else return ((Boolean)fields.get(name)).booleanValue();
    }

    /**
     * Get the value of the named char field from the persistent fields.
     */
    public char get(String name, char defvalue)
        throws IOException, IllegalArgumentException {
        if (defaulted(name))
            return defvalue;
        else return ((Character)fields.get(name)).charValue();

    }

    /**
     * Get the value of the named byte field from the persistent fields.
     */
    public byte get(String name, byte defvalue)
        throws IOException, IllegalArgumentException {
        if (defaulted(name))
            return defvalue;
        else return ((Byte)fields.get(name)).byteValue();

    }

    /**
     * Get the value of the named short field from the persistent fields.
     */
    public short get(String name, short defvalue)
        throws IOException, IllegalArgumentException {
        if (defaulted(name))
            return defvalue;
        else return ((Short)fields.get(name)).shortValue();

    }

    /**
     * Get the value of the named int field from the persistent fields.
     */
    public int get(String name, int defvalue)
        throws IOException, IllegalArgumentException {
        if (defaulted(name))
            return defvalue;
        else return ((Integer)fields.get(name)).intValue();

    }

    /**
     * Get the value of the named long field from the persistent fields.
     */
    public long get(String name, long defvalue)
        throws IOException, IllegalArgumentException {
        if (defaulted(name))
            return defvalue;
        else return ((Long)fields.get(name)).longValue();

    }

    /**
     * Get the value of the named float field from the persistent fields.
     */
    public float get(String name, float defvalue)
        throws IOException, IllegalArgumentException {
        if (defaulted(name))
            return defvalue;
        else return ((Float)fields.get(name)).floatValue();

    }

    /**
     * Get the value of the named double field from the persistent field.
     */
    public double get(String name, double defvalue)
        throws IOException, IllegalArgumentException  {
        if (defaulted(name))
            return defvalue;
        else return ((Double)fields.get(name)).doubleValue();

    }

    /**
     * Get the value of the named Object field from the persistent field.
     */
    public Object get(String name, Object defvalue)
        throws IOException, IllegalArgumentException {
        if (defaulted(name))
            return defvalue;
        else return fields.get(name);

    }

    public String toString(){
        return fields.toString();
    }
}