msgprovider.java

来自「基于Jpcap开发的流量监控软件」· Java 代码 · 共 53 行

package joel.ethernettools;
/**
 * THIS CLASS PROVIDES MSG WHICH CAN BE USED BY MsgReceiver IMPLEMENTATIONS.
 */
import java.util.Vector;

public class MsgProvider {
	private Vector<Object> v_Receiver;
	private String msg = "";

	public MsgProvider() {
		v_Receiver = new Vector<Object>();
	}

	public void addMsgReceiver(Object receiver) {
		v_Receiver.addElement(receiver);
	}

	public void removeMsgReceiver(Object receiver) {
		v_Receiver.remove(receiver);
	}

	public void notifyMsgReceivers() {
		for (int i = 0; i < v_Receiver.size(); i++)
			((MsgReceiver) v_Receiver.get(i)).processNewMsg(this);
	}

	public void notifyMsgReceivers(Object receiver) {
		((MsgReceiver) v_Receiver.get(v_Receiver.indexOf(receiver)))
				.processNewMsg(this);
	}

	public synchronized void addNewMsg(String msg) {
		this.msg = msg;
		this.notifyMsgReceivers();
	}

	public Object[] getMsgReceivers() {
		return this.v_Receiver.toArray();
	}

	public String getNewMsg() {
		return this.msg;
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
	}

}