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/**************************************************************************
 * copyright file="DnsSrvRecord.java" company="Microsoft"
 *     Copyright (c) Microsoft Corporation.  All rights reserved.
 * 
 * Defines the DnsSrvRecord.java.
 **************************************************************************/

package microsoft.exchange.webservices.data;

import java.util.NoSuchElementException;
import java.util.StringTokenizer;

/**
 * Represents a DNS SRV Record.
 */
class DnsSrvRecord extends DnsRecord {
	/*
	 * The string representing the target host
	 */
	/** The target. */
	private String target;

	/*
	 * priority of the target host specified in the owner name.
	 */
	/** The priority. */
	private int priority;
	/*
	 * weight of the target host
	 */
	/** The weight. */
	private int weight;
	/*
	 * port used on the target for the service
	 */
	/** The port. */
	private int port;

	/**
	 * Retrieves the value of the target property.
	 * 
	 * @return target
	 */
	protected String getNameTarget() {
		return this.target;
	}

	/**
	 * Retrieves the value of the priority property.
	 * 
	 * @return priority
	 */
	protected int getPriority() {
		return priority;
	}

	/**
	 * Retrieves the value of the weight property.
	 * 
	 * @return weight
	 */
	protected int getWeight() {
		return weight;
	}

	/**
	 * Retrieves the value of the port property.
	 * 
	 * @return port
	 */
	protected int getPort() {
		return port;
	}

	/**
	 * Initializes a new instance of the DnsSrvRecord class.
	 * 
	 * @param srvRecord
	 *            srvRecord that is fetched from JNDI
	 * @throws DnsException
	 *             the dns exception
	 */
	protected void load(String srvRecord) throws DnsException {
		super.load(null);
		StringTokenizer strTokens = new StringTokenizer(srvRecord);
		try {
			while (strTokens.hasMoreTokens()) {
				String priority = strTokens.nextToken();
				this.priority = Integer.parseInt(priority);

				String weight = strTokens.nextToken();
				this.weight = Integer.parseInt(weight);

				String port = strTokens.nextToken();
				this.port = Integer.parseInt(port);

				String target = strTokens.nextToken();
				this.target = target;
			}
		} catch (NumberFormatException ne) {
			throw new DnsException("NumberFormatException " + ne.getMessage());
		} catch (NoSuchElementException ne) {
			throw new DnsException("NoSuchElementException " + ne.getMessage());
		}

	}
}