/**
* Streams all members (dest and src addresses, buffer and headers) to the output stream.
*
* @param out
* @throws Exception
*/
public void writeTo(DataOutput out) throws Exception {
byte leading = 0;
if (dest_addr != null) leading = Util.setFlag(leading, DEST_SET);
if (src_addr != null) leading = Util.setFlag(leading, SRC_SET);
if (buf != null) leading = Util.setFlag(leading, BUF_SET);
// 1. write the leading byte first
out.write(leading);
// 2. the flags (e.g. OOB, LOW_PRIO), skip the transient flags
out.writeShort(flags);
// 3. dest_addr
if (dest_addr != null) Util.writeAddress(dest_addr, out);
// 4. src_addr
if (src_addr != null) Util.writeAddress(src_addr, out);
// 5. buf
if (buf != null) {
out.writeInt(length);
out.write(buf, offset, length);
}
// 6. headers
int size = headers.size();
out.writeShort(size);
final short[] ids = headers.getRawIDs();
final Header[] hdrs = headers.getRawHeaders();
for (int i = 0; i < ids.length; i++) {
if (ids[i] > 0) {
out.writeShort(ids[i]);
writeHeader(hdrs[i], out);
}
}
}
/**
* Writes the message to the output stream, but excludes the dest and src addresses unless the src
* address given as argument is different from the message's src address
*
* @param src
* @param out
* @throws Exception
*/
public void writeToNoAddrs(Address src, DataOutputStream out) throws Exception {
byte leading = 0;
boolean write_src_addr = src == null || src_addr != null && !src_addr.equals(src);
if (write_src_addr) leading = Util.setFlag(leading, SRC_SET);
if (buf != null) leading = Util.setFlag(leading, BUF_SET);
// 1. write the leading byte first
out.write(leading);
// 2. the flags (e.g. OOB, LOW_PRIO)
out.writeShort(flags);
// 4. src_addr
if (write_src_addr) Util.writeAddress(src_addr, out);
// 5. buf
if (buf != null) {
out.writeInt(length);
out.write(buf, offset, length);
}
// 6. headers
int size = headers.size();
out.writeShort(size);
final short[] ids = headers.getRawIDs();
final Header[] hdrs = headers.getRawHeaders();
for (int i = 0; i < ids.length; i++) {
if (ids[i] > 0) {
out.writeShort(ids[i]);
writeHeader(hdrs[i], out);
}
}
}