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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * accompanied this code).
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package com.sun.media.sound;

import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.StringTokenizer;

Audio configuration class for exposing attributes specific to the platform or system.
Author:
Kara Kytle, Florian Bomers/**
 * Audio configuration class for exposing attributes specific to the platform or system.
 *
 * @author Kara Kytle
 * @author Florian Bomers
 */
final class Platform {

    // native library we need to load
    private static final String libName = "jsound";

    private static boolean isNativeLibLoaded;

    // SYSTEM CHARACTERISTICS
    // vary according to hardware architecture

    // intel is little-endian.  sparc is big-endian.
    private static boolean bigEndian;

    static {
        loadLibraries();
    }

    
Private constructor.
/**
     * Private constructor.
     */
    private Platform() {
    }

    
Dummy method for forcing initialization.
/**
     * Dummy method for forcing initialization.
     */
    static void initialize() {
    }

    
Determine whether the system is big-endian.
/**
     * Determine whether the system is big-endian.
     */
    static boolean isBigEndian() {
        return bigEndian;
    }

    
Load the native library or libraries.
/**
     * Load the native library or libraries.
     */
    private static void loadLibraries() {
        // load the native library
        isNativeLibLoaded = true;
        try {
            AccessController.doPrivileged((PrivilegedAction<Void>) () -> {
                System.loadLibrary(libName);
                return null;
            });
        } catch (Throwable t) {
            if (Printer.err) Printer.err("Couldn't load library "+libName+": "+t.toString());
            isNativeLibLoaded = false;
        }
        if (isNativeLibLoaded) {
            bigEndian = nIsBigEndian();
        }
    }

    static boolean isMidiIOEnabled() {
        return isNativeLibLoaded;
    }

    static boolean isPortsEnabled() {
        return isNativeLibLoaded;
    }

    static boolean isDirectAudioEnabled() {
        return isNativeLibLoaded;
    }

    // the following native method is implemented in Platform.c
    private static native boolean nIsBigEndian();
}