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/*************************************************
*
* = PACKAGE
* JACE.Connection
*
* = FILENAME
* BlobWriter.java
*
*@author Prashant Jain
*
*************************************************/
package JACE.Connection;
import java.io.*;
import java.net.*;
import JACE.SOCK_SAP.*;
import JACE.ASX.*;
import JACE.OS.*;
// Writer **************************************************
public class BlobWriter extends BlobHandler
{
public BlobWriter (MessageBlock mb,
int length,
int offset,
String filename)
{
super (length, offset, filename);
this.mb_ = mb;
this.returnCode_ = -1;
}
/*******************************
* This constructor should be used when using the basic HTTP 1.1
* authentication scheme
*******************************/
public BlobWriter (MessageBlock mb,
int length,
int offset,
String filename,
String authentication)
{
super (length, offset, filename);
this.mb_ = mb;
this.returnCode_ = -1;
this.authentication_ = authentication;
}
public int open (Object obj)
{
if (this.sendRequest () != 0)
{
ACE.ERROR ("BlobWriter::open():sendRequest failed");
return -1;
}
else if (this.receiveReply () != 0)
{
ACE.ERROR ("BlobWriter::open():receiveReply failed");
return -1;
}
return 0;
}
public int close (long flags)
{
return 0;
}
public int bytesWritten ()
{
return this.bytesWritten_;;
}
protected int sendRequest ()
{
// Check for sanity -- check if we have any data to send.
if (this.offset_+ this.length_ > this.mb_.length ())
{
ACE.ERROR ("BlobWriter::sendRequest():Invalid offset/length");
return -1;
}
if (this.sendHeader () == -1)
{
ACE.ERROR ("BlobWriter::sendHeader failed.");
return -1;
}
else
if (this.sendData () == -1)
{
ACE.ERROR ("BlobWriter::sendData failed.");
return -1;
}
return 0;
}
// Send the header
protected int sendHeader ()
{
String filename = this.filename_;
// Check if the filename begins with a "/" and if it doesn't, add it
if (!this.filename_.startsWith ("/"))
filename = "/" + this.filename_;
// Create the header, store the actual length in mesglen
String mesg = this.requestPrefix_ + " " + filename + " " + this.requestSuffix_;
if (this.authentication_ != null)
mesg += "Authorization: Basic " + JACE.Connection.HTTPHelper.EncodeBase64(this.authentication_) + '\n';
mesg += "Content-length: " + this.length_ + "\n";
try
{
if (this.peer ().send (mesg) < 0)
{
ACE.ERROR ("Error sending request");
return -1;
}
}
catch (IOException e)
{
ACE.ERROR (e);
return -1;
}
return 0;
}
// Send the data
protected int sendData ()
{
// Get the actual data to send
String data = this.mb_.base ().substring (this.offset_,
this.offset_ + this.length_);
try
{
// System.out.println (data);
// Now send the data
if (this.peer ().send (data) != this.length_)
{
ACE.ERROR ("Error sending file");
return -1;
}
}
catch (IOException e)
{
ACE.ERROR (e);
return -1;
}
this.bytesWritten_ = this.length_;
return 0;
}
protected int receiveReply ()
{
System.out.println("Waiting for reply");
// Receive the reply from the server
StringBuffer reply = new StringBuffer (1024);
try
{
if (this.peer ().recv (reply) < 0)
{
ACE.ERROR ("Error receiving reply from server");
return -1;
}
}
catch (IOException e)
{
ACE.ERROR (e);
}
String s = reply.toString ();
int index = -1;
// Now parse the reply to see if it was a success or a failure
if ((index = s.indexOf (replyPrefix_)) == -1)
{
ACE.ERROR ("Error receiving reply from server");
return -1;
}
int codeIndex = index + replyPrefix_.length () + 1;
// Assume code is a 3 digit number
String codeString = s.substring (codeIndex, codeIndex + 3);
returnCode_ = (new Integer (codeString)).intValue ();
// System.out.println (code);
if (returnCode_ >= 200 && returnCode_ < 300) { // Check if everything went smoothly
System.out.println("We got the goodies!");
return 0;
} else
return -1;
}
public int returnCode ()
{
return this.returnCode_;
}
protected String authentication_ = null;
protected String protocol_ = "http://";
protected int bytesWritten_ = 0;
protected MessageBlock mb_ = null;
protected String requestPrefix_ = "PUT";
protected String requestSuffix_ = "HTTP/1.0\n";
protected String replyPrefix_ = "HTTP/1.0";
protected int returnCode_;
}
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