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 net.i2p.data.DataFormatException;
import net.i2p.data.DataHelper;
/**
* Defines the message a router sends to a client indicating the
* status of the session.
*
* @author jrandom
*/
public class SessionStatusMessage extends I2CPMessageImpl {
public final static int MESSAGE_TYPE = 20;
private SessionId _sessionId;
private int _status;
public final static int STATUS_DESTROYED = 0;
public final static int STATUS_CREATED = 1;
public final static int STATUS_UPDATED = 2;
public final static int STATUS_INVALID = 3;
/** @since 0.9.12 */
public final static int STATUS_REFUSED = 4;
public SessionStatusMessage() {
setStatus(STATUS_INVALID);
}
public SessionId getSessionId() {
return _sessionId;
}
/**
* Return the SessionId for this message.
*
* @since 0.9.21
*/
@Override
public SessionId sessionId() {
return _sessionId;
}
public void setSessionId(SessionId id) {
_sessionId = id;
}
public int getStatus() {
return _status;
}
public void setStatus(int status) {
_status = status;
}
@Override
protected void doReadMessage(InputStream in, int size) throws I2CPMessageException, IOException {
try {
_sessionId = new SessionId();
_sessionId.readBytes(in);
_status = (int) DataHelper.readLong(in, 1);
} catch (DataFormatException dfe) {
throw new I2CPMessageException("Unable to load the message data", dfe);
}
}
@Override
protected byte[] doWriteMessage() throws I2CPMessageException, IOException {
if (_sessionId == null)
throw new I2CPMessageException("Unable to write out the message as there is not enough data");
ByteArrayOutputStream os = new ByteArrayOutputStream(64);
try {
_sessionId.writeBytes(os);
DataHelper.writeLong(os, 1, _status);
} 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("[SessionStatusMessage: ");
buf.append("\n\tSessionId: ").append(getSessionId());
buf.append("\n\tStatus: ").append(getStatus());
buf.append("]");
return buf.toString();
}
}