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/*************************************************
*
* = PACKAGE
* netsvcs.Naming
*
* = FILENAME
* NameReply.java
*
*************************************************/
package JACE.netsvcs.Naming;
import java.io.*;
import java.util.*;
import JACE.OS.*;
import JACE.Connection.*;
import JACE.Reactor.*;
import JACE.ASX.*;
import JACE.SOCK_SAP.*;
/**
* Used by the naming server to give quick status messages
* to the client. This is only used to signal the success or
* failure of bind and unbind requests. The error number seems
* to be unused in the C++ version.
*
*@see NameHandler
*@author Everett Anderson
*
*/
public class NameReply
{
/** Successful operation indicator */
public final static int SUCCESS = 0;
/** Failed operation indicator */
public final static int FAILURE = -1;
/**
* Default Constructor (success, errno 0)
*/
public NameReply ()
{
this.type_ = this.SUCCESS;
this.errno_ = 0;
}
/**
* Constructor
*
*@param type Success or failure
*@param err Error number (unused)
*/
public NameReply (int type, int err)
{
this.type_ = type;
this.errno_ = err;
}
/**
* Length accessor
*/
int length()
{ return this.length_; }
/**
* Type accessor -- success or failure
*/
int type()
{ return this.type_; }
/**
* Error number accessor
*/
int errno()
{ return this.errno_; }
/**
* Set type
* @param type New type
*/
void type(int type)
{ this.type_ = type; }
/**
* Set error number
* @param errno New error number
*/
void errno(int errno)
{ this.errno_ = errno; }
/**
* Send this data to the given SOCKStream.
*
*@param sock SOCKStream to send to
*/
public void streamOutTo (JACE.SOCK_SAP.SOCKStream sock) throws IOException
{
streamOutTo (sock.dataOutputStream ());
}
/**
* Send this instance to the given DataOutputStream.
*/
public void streamOutTo (DataOutputStream dos) throws IOException
{
dos.writeInt(this.length_);
dos.writeInt(this.type_);
dos.writeInt(this.errno_);
dos.flush();
}
/**
* Send this instance to the given OutputStream.
*/
public void streamOutTo (OutputStream os) throws IOException
{
BufferedOutputStream bos = new BufferedOutputStream (os);
DataOutputStream dos = new DataOutputStream (bos);
streamOutTo (dos);
}
/**
* Fill the fields of this instance from data in the socket
*
*@param sock SOCKStream to read from
*/
public void streamInFrom (JACE.SOCK_SAP.SOCKStream sock) throws IOException
{
this.streamInFrom(sock.dataInputStream ());
}
/**
* Fill this instance from the DataInputStream (which should be buffered).
*
*@param dis DataInputStream to use
*/
public void streamInFrom (DataInputStream dis) throws IOException
{
int length = dis.readInt();
if (length != this.length_)
throw new IOException("Incorrect NameReply length");
type_ = dis.readInt();
errno_ = dis.readInt();
}
/**
* Fill this instance from the given InputStream.
*/
public void streamInFrom (InputStream is) throws IOException
{
BufferedInputStream bis = new BufferedInputStream (is);
DataInputStream dis = new DataInputStream (bis);
streamInFrom (dis);
}
final static int length_ = 12;
int type_;
int errno_;
}
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