public class Envelope {

    private Object body;
    private long timestamp;
    private int retries;

    public Envelope() { }

    public Envelope(Object body) {
        this(body, System.currentTimeMillis());
    }

    public Envelope(Object body, long timestamp) {
        this(body, timestamp, 0);
    }

    public Envelope(Object body, long timestamp, int retries) {
        this.body = body;
        this.timestamp = timestamp;
        this.retries = retries;
    }

    public Object getBody() {
        return body;
    }

    public void setBody(Object body) {
        this.body = body;
    }

    public long getTimestamp() {
        return timestamp;
    }

    public void setTimestamp(long timestamp) {
        this.timestamp = timestamp;
    }

    public int getRetries() {
        return retries;
    }

    public void setRetries(int retries) {
        this.retries = retries;
    }

    public String toString() {
        return ReflectionToStringBuilder.toString(this);
    }
}