trivialmessage.java

p2p仿真器。开发者可以工作在覆盖层中进行创造和测试逻辑算法或者创建和测试新的服务。PlanetSim还可以将仿真代码平稳转换为在Internet上的实验代码

package planet.test.trivialp2ptest;
import planet.commonapi.*;
/**
 * Simple Message to contain an Id to deliver a remote application.
 * 
 * @author Carles Pairot <[e-mail]>
 * @author Jordi Pujol <[e-mail]>
 * @version 1.0
 */
public class TrivialMessage implements Message {
	/**
	 * Contents of this message.
	 */
	private Id data = null;
    private String dataStr = null;
	
	/**
	 * Builds a new message with the specified data
	 * @param data  Data to be set to new message.
	 */
	public TrivialMessage(Id data) {
		this.data = data;
	}
	
	/**
	 * Gets the content of the message.
	 * @return The internal Id.
	 */
	public Id getData() {
		return data;
	}
    
    /**
     * Gets a string representation of this application message.
     * @return A string representation of this application message.
     * @see java.lang.Object#toString()
     */
    public String toString()
    {
        if (dataStr==null)
            dataStr = "TrivialMessage with key["+data+"]";
        return dataStr;
    }
}