/*

 * Copyright (c) 1997, 2003, 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.naming.cosnaming;

import java.io.*;

import org.omg.CosNaming.NameComponent;

public class NamingUtils {

    // Do not instantiate this class

    private NamingUtils() {};

    /**

     * Debug flag which must be true for debug streams to be created and

     * dprint output to be generated.

     */

    public static boolean debug = false;

    /**

     * Prints the message to the debug stream if debugging is enabled.

     * @param msg the debug message to print.

     */

    public static void dprint(String msg) {

        if (debug && debugStream != null)

            debugStream.println(msg);

    }

    /**

     * Prints the message to the error stream (System.err is default).

     * @param msg the error message to print.

     */

    public static void errprint(String msg) {

        if (errStream != null)

            errStream.println(msg);

        else

            System.err.println(msg);

    }

    /**

     * Prints the stacktrace of the supplied exception to the error stream.

     * @param e any Java exception.

     */

    public static void printException(java.lang.Exception e) {

        if (errStream != null)

            e.printStackTrace(errStream);

        else

            e.printStackTrace();

    }

    /**

     * Create a debug print stream to the supplied log file.

     * @param logFile the file to which debug output will go.

     * @exception IOException thrown if the file cannot be opened for output.

     */

    public static void makeDebugStream(File logFile)

        throws java.io.IOException {

        // Create an outputstream for debugging

        java.io.OutputStream logOStream =

            new java.io.FileOutputStream(logFile);

        java.io.DataOutputStream logDStream =

            new java.io.DataOutputStream(logOStream);

        debugStream = new java.io.PrintStream(logDStream);

        // Emit first message

        debugStream.println("Debug Stream Enabled.");

    }

    /**

     * Create a error print stream to the supplied file.

     * @exception IOException thrown if the file cannot be opened for output.

     */

    public static void makeErrStream(File errFile)

        throws java.io.IOException {

        if (debug) {

            // Create an outputstream for errors

            java.io.OutputStream errOStream =

                new java.io.FileOutputStream(errFile);

            java.io.DataOutputStream errDStream =

                new java.io.DataOutputStream(errOStream);

            errStream = new java.io.PrintStream(errDStream);

            dprint("Error stream setup completed.");

        }

    }

    /**

     * A utility method that takes Array of NameComponent and converts

     * into a directory structured name in the format of /id1.kind1/id2.kind2..

     * This is used mainly for Logging.

     */

    static String getDirectoryStructuredName( NameComponent[] name ) {

        StringBuffer directoryStructuredName = new StringBuffer("/");

        for( int i = 0; i < name.length; i++ ) {

            directoryStructuredName.append( name[i].id + "." + name[i].kind );

        }

        return directoryStructuredName.toString( );

    }

    /**

     * The debug printstream.

     */

    public static java.io.PrintStream debugStream;

    /**

     * The error printstream.

     */

    public static java.io.PrintStream errStream;

}