package net.i2p.data.i2cp;
/*
* free (adj.): unencumbered; not under the control of others
* Written by jrandom in 2003 and released into the public domain
* with no warranty of any kind, either expressed or implied.
* It probably won't make your computer catch on fire, or eat
* your children, but it might. Use at your own risk.
*
*/
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Date;
import net.i2p.data.DataFormatException;
import net.i2p.data.DataHelper;
import net.i2p.util.Clock;
/**
* Tell the other side what time it is.
* Only supported from router to client.
*
* Since 0.8.7, optionally include a version string.
*/
public class SetDateMessage extends I2CPMessageImpl {
public final static int MESSAGE_TYPE = 33;
private Date _date;
private String _version;
public SetDateMessage() {
super();
_date = new Date(Clock.getInstance().now());
}
/**
* @param version the router's version String to be sent to the client; may be null
* @since 0.8.7
*/
public SetDateMessage(String version) {
this();
_version = version;
}
public Date getDate() {
return _date;
}
public void setDate(Date date) {
_date = date;
}
/**
* @return may be null
* @since 0.8.7
*/
public String getVersion() {
return _version;
}
@Override
protected void doReadMessage(InputStream in, int size) throws I2CPMessageException, IOException {
try {
_date = DataHelper.readDate(in);
if (size > DataHelper.DATE_LENGTH)
_version = DataHelper.readString(in);
} catch (DataFormatException dfe) {
throw new I2CPMessageException("Unable to load the message data", dfe);
}
}
@Override
protected byte[] doWriteMessage() throws I2CPMessageException, IOException {
if (_date == null)
throw new I2CPMessageException("Unable to write out the message as there is not enough data");
ByteArrayOutputStream os = new ByteArrayOutputStream(32);
try {
DataHelper.writeDate(os, _date);
if (_version != null)
DataHelper.writeString(os, _version);
} catch (DataFormatException dfe) {
throw new I2CPMessageException("Error writing out the message data", dfe);
}
return os.toByteArray();
}
public int getType() {
return MESSAGE_TYPE;
}
@Override
public String toString() {
StringBuilder buf = new StringBuilder();
buf.append("[SetDateMessage");
buf.append("\n\tDate: ").append(_date);
buf.append("\n\tVersion: ").append(_version);
buf.append("]");
return buf.toString();
}
}