/**
* Writes an array of bytes on the stream. This method may not be used until this stream has been
* passed to one of the methods in HTTPConnection (i.e. until it has been associated with a
* request).
*
* @param buf an array containing the data to write
* @param off the offset of the data whithin the buffer
* @param len the number bytes (starting at <var>off</var>) to write
* @exception IOException if any exception is thrown by the socket, or if writing <var>len</var>
* bytes would cause more bytes to be written than this stream is willing to accept.
* @exception IllegalAccessError if this stream has not been associated with a request yet
*/
public synchronized void write(byte[] buf, int off, int len)
throws IOException, IllegalAccessError {
if (req == null) throw new IllegalAccessError("Stream not associated with a request");
if (ignore) return;
if (length != -1 && rcvd + len > length) {
IOException ioe =
new IOException("Tried to write too many bytes (" + (rcvd + len) + " > " + length + ")");
req.getConnection().closeDemux(ioe, false);
req.getConnection().outputFinished();
throw ioe;
}
try {
if (bos != null) bos.write(buf, off, len);
else if (length != -1) os.write(buf, off, len);
else os.write(Codecs.chunkedEncode(buf, off, len, null, false));
} catch (IOException ioe) {
req.getConnection().closeDemux(ioe, true);
req.getConnection().outputFinished();
throw ioe;
}
rcvd += len;
}
/**
* Closes the stream and causes the data to be sent if it has not already been done so. This
* method <strong>must</strong> be invoked when all data has been written.
*
* @exception IOException if any exception is thrown by the underlying socket, or if too few bytes
* were written.
* @exception IllegalAccessError if this stream has not been associated with a request yet.
*/
public synchronized void close() throws IOException, IllegalAccessError {
if (req == null) throw new IllegalAccessError("Stream not associated with a request");
if (ignore) return;
if (bos != null) {
req.setData(bos.toByteArray());
req.setStream(null);
if (trailers.length > 0) {
NVPair[] hdrs = req.getHeaders();
// remove any Trailer header field
int len = hdrs.length;
for (int idx = 0; idx < len; idx++) {
if (hdrs[idx].getName().equalsIgnoreCase("Trailer")) {
System.arraycopy(hdrs, idx + 1, hdrs, idx, len - idx - 1);
len--;
}
}
// add the trailers to the headers
hdrs = Util.resizeArray(hdrs, len + trailers.length);
System.arraycopy(trailers, 0, hdrs, len, trailers.length);
req.setHeaders(hdrs);
}
if (DebugConn) System.err.println("OutS: Sending request");
try {
resp = req.getConnection().sendRequest(req, con_to);
} catch (ModuleException me) {
throw new IOException(me.toString());
}
notify();
} else {
if (rcvd < length) {
IOException ioe =
new IOException(
"Premature close: only "
+ rcvd
+ " bytes written instead of the "
+ "expected "
+ length);
req.getConnection().closeDemux(ioe, false);
req.getConnection().outputFinished();
throw ioe;
}
try {
if (length == -1) {
if (DebugConn && trailers.length > 0) {
System.err.println("OutS: Sending trailers:");
for (int idx = 0; idx < trailers.length; idx++)
System.err.println(
" " + trailers[idx].getName() + ": " + trailers[idx].getValue());
}
os.write(Codecs.chunkedEncode(null, 0, 0, trailers, true));
}
os.flush();
if (DebugConn) System.err.println("OutS: All data sent");
} catch (IOException ioe) {
req.getConnection().closeDemux(ioe, true);
throw ioe;
} finally {
req.getConnection().outputFinished();
}
}
}