ObjectStreamClassCorbaExt.java

/*
 * Copyright (c) 2000, 2004, 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.
 *
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package org.jboss.com.sun.corba.se.impl.io;

import java.lang.reflect.Method;

/**
 * This file contains some utility methods that originally were in the OSC in the RMI-IIOP delivered by IBM. They don't
 * make there, and hence have been put so that they can be factored out in attempt to eliminate redundant code from
 * ObjectStreamClass. Eventually the goal is to move to java.io.ObjectStreamClass, and java.io.ObjectStreamField.
 * 
 * class is package private for security reasons
 */
class ObjectStreamClassCorbaExt
{

    /**
     * Return true, iff,
     * 
     * 1. 'cl' is an interface, and 2. 'cl' and all its ancestors do not implement java.rmi.Remote, and 3. if 'cl' has
     * no methods (including those of its ancestors), or, if all the methods (including those of its ancestors) throw an
     * exception that is atleast java.rmi.RemoteException or one of java.rmi.RemoteException's super classes.
     */
    static final boolean isAbstractInterface(Class<?> cl)
    {
        if (!cl.isInterface() || // #1
                java.rmi.Remote.class.isAssignableFrom(cl))
        { // #2
            return false;
        }
        Method[] methods = cl.getMethods();
        for (int i = 0; i < methods.length; i++)
        {
            Class<?> exceptions[] = methods[i].getExceptionTypes();
            boolean exceptionMatch = false;
            for (int j = 0; (j < exceptions.length) && !exceptionMatch; j++)
            {
                if ((java.rmi.RemoteException.class == exceptions[j]) || (Throwable.class == exceptions[j])
                        || (Exception.class == exceptions[j]) || (java.io.IOException.class == exceptions[j]))
                {
                    exceptionMatch = true;
                }
            }
            if (!exceptionMatch)
            {
                return false;
            }
        }
        return true;
    }

    /*
     * Returns TRUE if type is 'any'.
     */
    static final boolean isAny(String typeString)
    {

        int isAny = 0;

        if ((typeString != null)
                && (typeString.equals("Ljava/lang/Object;") || typeString.equals("Ljava/io/Serializable;") || typeString
                        .equals("Ljava/io/Externalizable;")))
            isAny = 1;

        return (isAny == 1);
    }

}