protected Header readHeaderFromBuffer(ByteBuffer buffer) throws WWRuntimeException {
// Read file code - first byte
int fileCode = buffer.get();
if (fileCode > 5) {
String message = Logging.getMessage("SHP.NotADBaseFile", file.getPath());
Logging.logger().log(java.util.logging.Level.SEVERE, message);
throw new WWRuntimeException(message);
}
// Last update date
int yy = 0xFF & buffer.get(); // unsigned
int mm = buffer.get();
int dd = buffer.get();
// Number of records
int numRecords = buffer.getInt();
// Header struct length
int headerLength = buffer.getShort();
// Record length
int recordLength = buffer.getShort();
// Assemble header
Header header = new Header();
header.fileCode = fileCode;
Calendar cal = Calendar.getInstance();
cal.set(1900 + yy, mm - 1, dd);
header.lastModificationDate = cal.getTime();
header.numberOfRecords = numRecords;
header.headerLength = headerLength;
header.recordLength = recordLength;
return header;
}
/** Converts the Message to a String. */
public String toString() {
StringBuffer sb = new StringBuffer();
OPTRecord opt = getOPT();
if (opt != null) sb.append(header.toStringWithRcode(getRcode()) + "\n");
else sb.append(header + "\n");
if (isSigned()) {
sb.append(";; TSIG ");
if (isVerified()) sb.append("ok");
else sb.append("invalid");
sb.append('\n');
}
if (opt != null) {
sb.append(";; OPT PSEUDOSECTION:\n");
sb.append("; EDNS: version: ");
sb.append(opt.getVersion());
sb.append(", flags:");
if ((opt.getFlags() & ExtendedFlags.DO) != 0) {
sb.append(" do");
}
sb.append("; udp: ");
sb.append(opt.getPayloadSize());
sb.append("\n");
}
for (int i = 0; i < 4; i++) {
if (header.getOpcode() != Opcode.UPDATE) sb.append(";; " + Section.longString(i) + ":\n");
else sb.append(";; " + Section.updString(i) + ":\n");
sb.append(sectionToString(i) + "\n");
}
sb.append(";; Message size: " + numBytes() + " bytes");
return sb.toString();
}
public synchronized List<Header> getHeaders(String key) {
List<Header> keyh = new ArrayList<Header>();
for (Header h : this.headers) {
if (h.getName().equalsIgnoreCase(key.trim())) keyh.add(h);
}
return keyh;
}
Message(DNSInput in) throws IOException {
this(new Header(in));
boolean isUpdate = (header.getOpcode() == Opcode.UPDATE);
boolean truncated = header.getFlag(Flags.TC);
try {
for (int i = 0; i < 4; i++) {
int count = header.getCount(i);
if (count > 0) sections[i] = new ArrayList(count);
for (int j = 0; j < count; j++) {
int pos = in.current();
Record rec = Record.fromWire(in, i, isUpdate);
sections[i].add(rec);
if (i == Section.ADDITIONAL) {
if (rec.getType() == Type.TSIG) tsigstart = pos;
if (rec.getType() == Type.SIG) {
SIGRecord sig = (SIGRecord) rec;
if (sig.getTypeCovered() == 0) sig0start = pos;
}
}
}
}
} catch (WireParseException e) {
if (!truncated) throw e;
}
size = in.current();
}
/**
* Generates a byte array representing the contents of this page. Used to serialize this page to
* disk.
*
* <p>The invariant here is that it should be possible to pass the byte array generated by
* getPageData to the HeapPage constructor and have it produce an identical HeapPage object.
*
* @see #HeapPage
* @return A byte array correspond to the bytes of this page.
*/
public byte[] getPageData() {
// int len = header.length*4 + BufferPool.PAGE_SIZE;
int len = BufferPool.PAGE_SIZE;
ByteArrayOutputStream baos = new ByteArrayOutputStream(len);
DataOutputStream dos = new DataOutputStream(baos);
// create the header of the page
try {
dos.write(header.getHeader());
} catch (IOException e) {
// this really shouldn't happen
e.printStackTrace();
}
// create the tuples
for (int i = 0; i < numSlots; i++) {
// empty slot
if (!getSlot(i)) {
for (int j = 0; j < td.getSize(); j++) {
try {
dos.writeByte(0);
} catch (IOException e) {
e.printStackTrace();
}
}
continue;
}
// non-empty slot
for (int j = 0; j < td.numFields(); j++) {
Field f = tuples[i].getField(j);
try {
f.serialize(dos);
} catch (IOException e) {
e.printStackTrace();
}
}
}
// padding
int zerolen = BufferPool.PAGE_SIZE - numSlots * td.getSize() - header.length();
byte[] zeroes = new byte[zerolen];
try {
dos.write(zeroes, 0, zerolen);
} catch (IOException e) {
e.printStackTrace();
}
try {
dos.flush();
} catch (IOException e) {
e.printStackTrace();
}
return baos.toByteArray();
}
/**
* Adds the specified tuple to the page.
*
* @throws DbException if the page is full (no empty slots) or tupledesc is mismatch.
* @param t The tuple to add.
*/
public void addTuple(Tuple t) throws DbException {
int index = header.findFirstEmptySlot();
if (index == -1) {
throw new DbException("No empty slot for new tuple");
} else {
header.setSlotVal(index, true);
tuples[index] = t;
}
}
/** Creates an SGIImage from the specified data in either RGB or RGBA format. */
public static SGIImage createFromData(
final int width, final int height, final boolean hasAlpha, final byte[] data) {
final Header header = new Header();
header.xsize = (short) width;
header.ysize = (short) height;
header.zsize = (short) (hasAlpha ? 4 : 3);
final SGIImage image = new SGIImage(header);
image.data = data;
return image;
}
protected Header readHeaderFromStream(InputStream is) throws IOException {
ReadableByteChannel channel = Channels.newChannel(is);
// Read header fixed portion
ByteBuffer headerBuffer = ShapefileUtils.readByteChannelToBuffer(channel, FIXED_HEADER_LENGTH);
Header header = this.readHeaderFromBuffer(headerBuffer);
// Read fields description header
int fieldsHeaderLength = header.headerLength - FIXED_HEADER_LENGTH;
header.fieldsHeaderBuffer = ShapefileUtils.readByteChannelToBuffer(channel, fieldsHeaderLength);
return header;
}
protected static Header readHeader(DataInput in) throws Exception {
short magic_number = in.readShort();
Class clazz = ClassConfigurator.get(magic_number);
if (clazz == null)
throw new IllegalArgumentException(
"magic number " + magic_number + " is not available in magic map");
Header hdr = (Header) clazz.newInstance();
hdr.readFrom(in);
return hdr;
}
// Microsoft doesn't follow their own specifications and the
// simplest conversion using the DxTex tool to e.g. a DXT3 texture
// results in an illegal .dds file without either DDSD_PITCH or
// DDSD_LINEARSIZE set in the header's flags. This code, adapted
// from the DevIL library, fixes up the header in these situations.
private void fixupHeader() {
if (isCompressed() && !isSurfaceDescFlagSet(DDSD_LINEARSIZE)) {
// Figure out how big the linear size should be
int depth = header.backBufferCountOrDepth;
if (depth == 0) {
depth = 1;
}
header.pitchOrLinearSize =
computeCompressedBlockSize(getWidth(), getHeight(), depth, getCompressionFormat());
header.flags |= DDSD_LINEARSIZE;
}
}
public void write(FileOutputStream fos) throws IOException {
FileChannel chan = fos.getChannel();
// Create ByteBuffer for header in case the start of our
// ByteBuffer isn't actually memory-mapped
ByteBuffer hdr = ByteBuffer.allocate(Header.writtenSize());
hdr.order(ByteOrder.LITTLE_ENDIAN);
header.write(hdr);
hdr.rewind();
chan.write(hdr);
buf.position(Header.writtenSize());
chan.write(buf);
chan.force(true);
chan.close();
}
private static Header parseHeader(Node parent) throws XmlParserException {
Header header = new Header();
NodeList nodes = parent.getChildNodes();
for (int nodeid = 0; nodeid < nodes.getLength(); ++nodeid) {
Node node = nodes.item(nodeid);
if (node.getNodeType() != Node.ELEMENT_NODE) continue;
Element element = (Element) node;
try {
if (element.getTagName().equals("nrpeaks"))
header.setNrPeaks(Integer.parseInt(element.getTextContent()));
else if (element.getTagName().equals("date")) header.setDate(element.getTextContent());
else if (element.getTagName().equals("owner")) header.setOwner(element.getTextContent());
else if (element.getTagName().equals("description"))
header.setDescription(element.getTextContent());
else if (element.getTagName().equals("sets")) header.addSetInfos(parseSets(element));
else if (element.getTagName().equals("measurements"))
header.addMeasurementInfos(parseMeasurements(element));
else if (element.getTagName().equals("annotations")) {
Vector<Annotation> annotations = parseAnnotations(element);
if (annotations != null)
for (Annotation annotation : annotations) header.addAnnotation(annotation);
}
} catch (Exception e) {
throw new XmlParserException(
"Invalid value in header (" + element.getTagName() + "): '" + e.getMessage() + "'.");
}
}
return header;
}
public void printHeaders() {
if (this.request != null) {
Header[] hdrs = this.request.getAllHeaders();
if (hdrs == null) hdrs = new Header[0];
System.err.println("Request Headers:");
for (Header h : hdrs) System.err.println(h.toString());
}
if (this.response != null) {
Header[] hdrs = this.response.getAllHeaders();
if (hdrs == null) hdrs = new Header[0];
System.err.println("Response Headers:");
for (Header h : hdrs) System.err.println(h.toString());
}
System.err.flush();
}
private byte[] read(byte[] data, int pos) throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
ByteArrayInputStream bis = new ByteArrayInputStream(data);
Header header = new Header();
header.read(data, pos);
bis.skip(pos + header.getSize());
InflaterInputStream inflater = new InflaterInputStream(bis);
byte[] chunk = new byte[4096];
int count;
while ((count = inflater.read(chunk)) >= 0) {
out.write(chunk, 0, count);
}
inflater.close();
return out.toByteArray();
}
private void readFromBuffer(ByteBuffer buf) throws IOException {
this.buf = buf;
buf.order(ByteOrder.LITTLE_ENDIAN);
header = new Header();
header.read(buf);
fixupHeader();
}
public void process(final HttpResponse response, final HttpContext context)
throws HttpException, IOException {
HttpEntity entity = response.getEntity();
if (entity != null) {
Header ceheader = entity.getContentEncoding();
if (ceheader != null) {
HeaderElement[] codecs = ceheader.getElements();
for (HeaderElement h : codecs) {
if (h.getName().equalsIgnoreCase("deflate")) {
response.setEntity(new DeflateDecompressingEntity(response.getEntity()));
return;
}
}
}
}
}
/**
* Gets the <i>i</i>th mipmap data (0..getNumMipMaps() - 1)
*
* @param side Cubemap side or 0 for 2D texture
* @param map Mipmap index
* @return Image object
*/
public ImageInfo getMipMap(int side, int map) {
if (!isCubemap() && (side != 0)) {
throw new RuntimeException("Illegal side for 2D texture: " + side);
}
if (isCubemap() && !isCubemapSidePresent(side)) {
throw new RuntimeException("Illegal side, side not present: " + side);
}
if (getNumMipMaps() > 0 && ((map < 0) || (map >= getNumMipMaps()))) {
throw new RuntimeException(
"Illegal mipmap number " + map + " (0.." + (getNumMipMaps() - 1) + ")");
}
// Figure out how far to seek
int seek = Header.writtenSize();
if (isCubemap()) {
seek += sideShiftInBytes(side);
}
for (int i = 0; i < map; i++) {
seek += mipMapSizeInBytes(i);
}
buf.limit(seek + mipMapSizeInBytes(map));
buf.position(seek);
ByteBuffer next = buf.slice();
buf.position(0);
buf.limit(buf.capacity());
return new ImageInfo(
next, mipMapWidth(map), mipMapHeight(map), isCompressed(), getCompressionFormat());
}
/**
* Returns the TSIG record from the ADDITIONAL section, if one is present.
*
* @see TSIGRecord
* @see TSIG
* @see Section
*/
public TSIGRecord getTSIG() {
int count = header.getCount(Section.ADDITIONAL);
if (count == 0) return null;
List l = sections[Section.ADDITIONAL];
Record rec = (Record) l.get(count - 1);
if (rec.type != Type.TSIG) return null;
return (TSIGRecord) rec;
}
/**
* Creates a copy of this Message. This is done by the Resolver before adding TSIG and OPT
* records, for example.
*
* @see Resolver
* @see TSIGRecord
* @see OPTRecord
*/
public Object clone() {
Message m = new Message();
for (int i = 0; i < sections.length; i++) {
if (sections[i] != null) m.sections[i] = new LinkedList(sections[i]);
}
m.header = (Header) header.clone();
m.size = size;
return m;
}
private void decodeImage(final DataInputStream in) throws IOException {
if (header.storage == 1) {
// Read RLE compression data; row starts and sizes
final int x = header.ysize * header.zsize;
rowStart = new int[x];
rowSize = new int[x];
rleEnd = 4 * 2 * x + 512;
for (int i = 0; i < x; i++) {
rowStart[i] = in.readInt();
}
for (int i = 0; i < x; i++) {
rowSize[i] = in.readInt();
}
tmpRead = new byte[header.xsize * 256];
}
tmpData = readAll(in);
final int xsize = header.xsize;
final int ysize = header.ysize;
final int zsize = header.zsize;
int lptr = 0;
data = new byte[xsize * ysize * 4];
final byte[] rbuf = new byte[xsize];
final byte[] gbuf = new byte[xsize];
final byte[] bbuf = new byte[xsize];
final byte[] abuf = new byte[xsize];
for (int y = 0; y < ysize; y++) {
if (zsize >= 4) {
getRow(rbuf, y, 0);
getRow(gbuf, y, 1);
getRow(bbuf, y, 2);
getRow(abuf, y, 3);
rgbatorgba(rbuf, gbuf, bbuf, abuf, data, lptr);
} else if (zsize == 3) {
getRow(rbuf, y, 0);
getRow(gbuf, y, 1);
getRow(bbuf, y, 2);
rgbtorgba(rbuf, gbuf, bbuf, data, lptr);
} else if (zsize == 2) {
getRow(rbuf, y, 0);
getRow(abuf, y, 1);
latorgba(rbuf, abuf, data, lptr);
} else {
getRow(rbuf, y, 0);
bwtorgba(rbuf, data, lptr);
}
lptr += 4 * xsize;
}
rowStart = null;
rowSize = null;
tmpData = null;
tmpRead = null;
format = GL.GL_RGBA;
header.zsize = 4;
}
/** Converts the Message to a String. */
public String toString() {
StringBuffer sb = new StringBuffer();
OPTRecord opt = getOPT();
if (opt != null) sb.append(header.toStringWithRcode(getRcode()) + "\n");
else sb.append(header + "\n");
if (isSigned()) {
sb.append(";; TSIG ");
if (isVerified()) sb.append("ok");
else sb.append("invalid");
sb.append('\n');
}
for (int i = 0; i < 4; i++) {
if (header.getOpcode() != Opcode.UPDATE) sb.append(";; " + Section.longString(i) + ":\n");
else sb.append(";; " + Section.updString(i) + ":\n");
sb.append(sectionToString(i) + "\n");
}
sb.append(";; Message size: " + numBytes() + " bytes");
return sb.toString();
}
private void checkHeaders(HTTPMethod method) {
if (debugHeaders) {
System.out.println("\nOpenConnection Headers for " + method.getPath());
System.out.println("Status Line: " + method.getStatusLine());
}
Header[] responseHeaders = method.getResponseHeaders();
for (int i1 = 0; i1 < responseHeaders.length; i1++) {
Header responseHeader = responseHeaders[i1];
if (debugHeaders) System.out.print(" " + responseHeader);
String key = responseHeader.getName();
String value = responseHeader.getValue();
if (key.equals("Last-Modified")) {
lastModified = value;
if (debugHeaders) System.out.println(" **found lastModified = " + lastModified);
} else if (key.equals("X-Last-Extended")) {
lastExtended = value;
if (debugHeaders) System.out.println(" **found lastExtended = " + lastExtended);
} else if (key.equals("X-Last-Modified-Invalid")) {
lastModifiedInvalid = value;
if (debugHeaders)
System.out.println(" **found lastModifiedInvalid = " + lastModifiedInvalid);
}
}
if (debugHeaders) System.out.println("OpenConnection Headers for " + method.getPath());
Cookie[] cookies = _session.getCookies();
if (cookies.length > 0) {
if (debugHeaders) System.out.println("Cookies= ");
for (int i = 0; i < cookies.length; i++) {
Cookie cooky = cookies[i];
if (debugHeaders) System.out.println(" " + cooky);
if (cooky.getName().equalsIgnoreCase("jsessionid")) hasSession = true;
}
}
}
void toWire(DNSOutput out) {
header.toWire(out);
Compression c = new Compression();
for (int i = 0; i < 4; i++) {
if (sections[i] == null) continue;
for (int j = 0; j < sections[i].size(); j++) {
Record rec = (Record) sections[i].get(j);
rec.toWire(out, i, c);
}
}
}
/* Returns true if the message could be rendered. */
private boolean toWire(DNSOutput out, int maxLength) {
if (maxLength < Header.LENGTH) return false;
Header newheader = null;
int tempMaxLength = maxLength;
if (tsigkey != null) tempMaxLength -= tsigkey.recordLength();
OPTRecord opt = getOPT();
byte[] optBytes = null;
if (opt != null) {
optBytes = opt.toWire(Section.ADDITIONAL);
tempMaxLength -= optBytes.length;
}
int startpos = out.current();
header.toWire(out);
Compression c = new Compression();
int flags = header.getFlagsByte();
int additionalCount = 0;
for (int i = 0; i < 4; i++) {
int skipped;
if (sections[i] == null) continue;
skipped = sectionToWire(out, i, c, tempMaxLength);
if (skipped != 0 && i != Section.ADDITIONAL) {
flags = Header.setFlag(flags, Flags.TC, true);
out.writeU16At(header.getCount(i) - skipped, startpos + 4 + 2 * i);
for (int j = i + 1; j < Section.ADDITIONAL; j++) out.writeU16At(0, startpos + 4 + 2 * j);
break;
}
if (i == Section.ADDITIONAL) additionalCount = header.getCount(i) - skipped;
}
if (optBytes != null) {
out.writeByteArray(optBytes);
additionalCount++;
}
if (flags != header.getFlagsByte()) out.writeU16At(flags, startpos + 2);
if (additionalCount != header.getCount(Section.ADDITIONAL))
out.writeU16At(additionalCount, startpos + 10);
if (tsigkey != null) {
TSIGRecord tsigrec = tsigkey.generate(this, out.toByteArray(), tsigerror, querytsig);
tsigrec.toWire(out, Section.ADDITIONAL, c);
out.writeU16At(additionalCount + 1, startpos + 10);
}
return true;
}
public void setData(byte[] data) throws IOException {
int pos = 512; // skip the first 512 bytes - they are MAC specific crap
byte[] compressed = compress(data, pos, data.length - pos);
Header header = new Header();
header.wmfsize = data.length - 512;
// we don't have a PICT reader in java, have to set default image size 200x200
header.bounds = new java.awt.Rectangle(0, 0, 200, 200);
header.size =
new java.awt.Dimension(
header.bounds.width * Shape.EMU_PER_POINT, header.bounds.height * Shape.EMU_PER_POINT);
header.zipsize = compressed.length;
byte[] checksum = getChecksum(data);
ByteArrayOutputStream out = new ByteArrayOutputStream();
out.write(checksum);
out.write(new byte[16]); // 16-byte prefix which is safe to ignore
header.write(out);
out.write(compressed);
setRawData(out.toByteArray());
}
/**
* Removes all records from a section of the Message, and adjusts the header.
*
* @see Record
* @see Section
*/
public void removeAllRecords(int section) {
sections[section] = null;
header.setCount(section, 0);
}
protected static void writeHeader(Header hdr, DataOutput out) throws Exception {
short magic_number = ClassConfigurator.getMagicNumber(hdr.getClass());
out.writeShort(magic_number);
hdr.writeTo(out);
}
public void mainloop() {
while (!client.isConnected()) {
try {
System.out.println("Connecting to " + hostname + ":" + port);
client.connect(hostname, port);
} catch (IOException e) {
}
if (!client.isConnected()) {
System.out.println("Couldn't connect. waiting");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
run = false;
System.exit(-1);
}
}
}
// Load the header information in one go into a bytebuffer
byte[] rawbytebuf = new byte[BUFFERSIZE];
int n = 0;
try {
n = headerReader.read(rawbytebuf);
} catch (IOException e) {
e.printStackTrace();
}
// Byte-buffer used to parse the byte-stream. Force native ordering
ByteBuffer hdrBuf = ByteBuffer.wrap(rawbytebuf, 0, n);
hdrBuf.order(ByteOrder.nativeOrder());
Header hdr = new Header(hdrBuf);
if (VERB > 0) {
System.out.println("Sending header: " + hdr.toString());
}
hdr.nSamples = 0; // reset number of samples to 0
try {
client.putHeader(hdr);
} catch (IOException e) {
e.printStackTrace();
}
// Interval between sending samples to the buffer
int pktSamples = hdr.nChans * blockSize; // number data samples in each buffer packet
int pktBytes = pktSamples * DataType.wordSize[hdr.dataType];
int nsamp = 0; // sample counter
int nblk = 0;
int nevent = 0;
byte[] samples = new byte[pktBytes];
// Size of the event header: type,type_numel,val,val_numel,sample,offset,duration,bufsz
int evtHdrSz = DataType.wordSize[DataType.INT32] * 8;
byte[] evtRawBuf = new byte[BUFFERSIZE]; // buffer to hold complete event structure
// Byte-buffer used to parse the byte-stream. Force native ordering
ByteBuffer evtBuf = ByteBuffer.wrap(evtRawBuf);
evtBuf.order(ByteOrder.nativeOrder());
int payloadSz = 0;
int evtSample = 0;
int evtSz = 0;
long sample_ms = 0;
long starttime_ms = java.lang.System.currentTimeMillis();
long elapsed_ms = 0;
long print_ms = 0;
// Now do the data forwarding
boolean eof = false;
while (!eof
&& run) { // The run switch allows control of stopping the thread and getting out of the
// loop
// Read one buffer packets worth of samples
// increment the cursor position
if (VERB > 0 && elapsed_ms > print_ms + 500) {
print_ms = elapsed_ms;
System.out.println(
nblk
+ " "
+ nsamp
+ " "
+ nevent
+ " "
+ (elapsed_ms / 1000)
+ " (blk,samp,event,sec)\r");
}
// read and write the samples
try {
n = dataReader.read(samples);
} catch (IOException e) {
e.printStackTrace();
}
if (n <= 0) {
eof = true;
break;
} // stop if run out of samples
try {
client.putRawData(blockSize, hdr.nChans, hdr.dataType, samples);
} catch (IOException e) {
e.printStackTrace();
}
// update the sample count
nsamp += blockSize;
while (evtSample <= nsamp) {
if (evtSample > 0) { // send the current event
try {
client.putRawEvent(evtRawBuf, 0, evtSz);
} catch (IOException e) {
e.printStackTrace();
}
nevent++;
}
// read the next event
try {
n = eventReader.read(evtRawBuf, 0, evtHdrSz); // read the fixed size header
} catch (IOException e) {
e.printStackTrace();
}
if (n <= 0) {
eof = true;
break;
}
evtSample = ((ByteBuffer) evtBuf.position(4 * 4)).getInt(); // sample index for this event
payloadSz = ((ByteBuffer) evtBuf.position(4 * 7)).getInt(); // payload size for this event
evtSz = evtHdrSz + payloadSz;
// read the variable part
try {
n = eventReader.read(evtRawBuf, evtHdrSz, payloadSz);
} catch (IOException e) {
e.printStackTrace();
}
if (n <= 0) {
eof = true;
break;
}
// print the event we just read
if (VERB > 1) {
ByteBuffer tmpev = ByteBuffer.wrap(evtRawBuf, 0, evtSz);
tmpev.order(evtBuf.order());
BufferEvent evt = new BufferEvent(tmpev);
System.out.println("Read Event: " + evt);
}
}
// sleep until the next packet should be send OR EOF
/*when to send the next sample */
sample_ms = (long) ((float) (nsamp * 1000) / hdr.fSample / (float) speedup);
elapsed_ms = java.lang.System.currentTimeMillis() - starttime_ms; // current time
if (sample_ms > elapsed_ms)
try {
Thread.sleep(sample_ms - elapsed_ms);
} catch (InterruptedException e) {
e.printStackTrace();
}
nblk++;
}
stop();
}
/** Returns the message's rcode (error code). This incorporates the EDNS extended rcode. */
public int getRcode() {
int rcode = header.getRcode();
OPTRecord opt = getOPT();
if (opt != null) rcode += (opt.getExtendedRcode() << 4);
return rcode;
}
/* Returns true if the message could be rendered. */
private boolean toWire(DNSOutput out, int maxLength) {
if (maxLength < Header.LENGTH) return false;
Header newheader = null;
int tempMaxLength = maxLength;
if (tsigkey != null) tempMaxLength -= tsigkey.recordLength();
int startpos = out.current();
header.toWire(out);
Compression c = new Compression();
for (int i = 0; i < 4; i++) {
int skipped;
if (sections[i] == null) continue;
skipped = sectionToWire(out, i, c, tempMaxLength);
if (skipped != 0) {
if (i != Section.ADDITIONAL) {
if (newheader == null) newheader = (Header) header.clone();
newheader.setFlag(Flags.TC);
int count = newheader.getCount(i);
newheader.setCount(i, count - skipped);
for (int j = i + 1; j < 4; j++) newheader.setCount(j, 0);
out.save();
out.jump(startpos);
newheader.toWire(out);
out.restore();
}
break;
}
}
if (tsigkey != null) {
TSIGRecord tsigrec = tsigkey.generate(this, out.toByteArray(), tsigerror, querytsig);
if (newheader == null) newheader = (Header) header.clone();
tsigrec.toWire(out, Section.ADDITIONAL, c);
newheader.incCount(Section.ADDITIONAL);
out.save();
out.jump(startpos);
newheader.toWire(out);
out.restore();
}
return true;
}