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Jcrfsuite is a Java interface for crfsuite, a fast implementation of Conditional Random Fields, using SWIG and class injection technique

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/*--------------------------------------------------------------------------
 *  Copyright 2008 Taro L. Saito
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *--------------------------------------------------------------------------*/
//--------------------------------------
// snappy-java Project
//
// OSInfo.java
// Since: May 20, 2008
//
// $URL$ 
// $Author$
//--------------------------------------
package com.github.jcrfsuite.util;

/**
 * Provides OS name and architecture name.
 * 
 * @author leo
 * 
 * @author vinhkhuc Adapted from OSInfo.java of snappy-java-1.0.4.1
 */
public class OSInfo
{
    public static void main(String[] args) {
        if (args.length >= 1) {
            if ("--os".equals(args[0])) {
                System.out.print(getOSName());
                return;
            }
            else if ("--arch".equals(args[0])) {
                System.out.print(getArchName());
                return;
            }
        }

        System.out.print(getNativeLibFolderPathForCurrentOS());
    }

    public static String getNativeLibFolderPathForCurrentOS() {
        return getOSName() + "/" + getArchName();
    }

    public static String getOSName() {
        return translateOSNameToFolderName(System.getProperty("os.name"));
    }

    public static String getArchName() {
        return translateArchNameToFolderName(System.getProperty("os.arch"));
    }

    public static String translateOSNameToFolderName(String osName) {
        if (osName.contains("Windows")) {
            return "Windows";
        }
        else if (osName.contains("Mac")) {
            return "Mac";
        }
        else if (osName.contains("Linux")) {
            return "Linux";
        }
        else {
            return osName.replaceAll("\\W", "");
        }
    }

    public static String translateArchNameToFolderName(String archName) {
        return archName.replaceAll("\\W", "");
    }
}