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WAFFLE JNA implementation
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/**
 * Waffle (https://github.com/dblock/waffle)
 *
 * Copyright (c) 2010 - 2015 Application Security, Inc.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Application Security, Inc.
 */
package waffle.windows.auth.impl;

import java.util.ArrayList;
import java.util.List;

import waffle.windows.auth.IWindowsComputer;

import com.sun.jna.platform.win32.LMJoin;
import com.sun.jna.platform.win32.Netapi32Util;
import com.sun.jna.platform.win32.Netapi32Util.LocalGroup;

/**
 * Windows Computer.
 * 
 * @author dblock[at]dblock[dot]org
 */
public class WindowsComputerImpl implements IWindowsComputer {

    /** The computer name. */
    private String computerName;
    
    /** The domain name. */
    private String domainName;

    /**
     * Instantiates a new windows computer impl.
     *
     * @param newComputerName
     *            the new computer name
     */
    public WindowsComputerImpl(final String newComputerName) {
        this.computerName = newComputerName;
        this.domainName = Netapi32Util.getDomainName(newComputerName);
    }

    /* (non-Javadoc)
     * @see waffle.windows.auth.IWindowsComputer#getComputerName()
     */
    @Override
    public String getComputerName() {
        return this.computerName;
    }

    /* (non-Javadoc)
     * @see waffle.windows.auth.IWindowsComputer#getGroups()
     */
    @Override
    public String[] getGroups() {
        final List groupNames = new ArrayList();
        final LocalGroup[] groups = Netapi32Util.getLocalGroups(this.computerName);
        for (LocalGroup group : groups) {
            groupNames.add(group.name);
        }
        return groupNames.toArray(new String[0]);
    }

    /* (non-Javadoc)
     * @see waffle.windows.auth.IWindowsComputer#getJoinStatus()
     */
    @Override
    public String getJoinStatus() {
        final int joinStatus = Netapi32Util.getJoinStatus(this.computerName);
        switch (joinStatus) {
            case LMJoin.NETSETUP_JOIN_STATUS.NetSetupDomainName:
                return "NetSetupDomainName";
            case LMJoin.NETSETUP_JOIN_STATUS.NetSetupUnjoined:
                return "NetSetupUnjoined";
            case LMJoin.NETSETUP_JOIN_STATUS.NetSetupWorkgroupName:
                return "NetSetupWorkgroupName";
            case LMJoin.NETSETUP_JOIN_STATUS.NetSetupUnknownStatus:
                return "NetSetupUnknownStatus";
            default:
                throw new RuntimeException("Unsupported join status: " + joinStatus);
        }
    }

    /* (non-Javadoc)
     * @see waffle.windows.auth.IWindowsComputer#getMemberOf()
     */
    @Override
    public String getMemberOf() {
        return this.domainName;
    }

}