static boolean check(CharsetDecoder dec, byte[] bytes, boolean direct, int[] flow) {
int inPos = flow[0];
int inLen = flow[1];
int outPos = flow[2];
int outLen = flow[3];
int expedInPos = flow[4];
int expedOutPos = flow[5];
CoderResult expedCR = (flow[6] == 0) ? CoderResult.UNDERFLOW : CoderResult.OVERFLOW;
ByteBuffer bbf;
CharBuffer cbf;
if (direct) {
bbf = ByteBuffer.allocateDirect(inPos + bytes.length);
cbf = ByteBuffer.allocateDirect((outPos + outLen) * 2).asCharBuffer();
} else {
bbf = ByteBuffer.allocate(inPos + bytes.length);
cbf = CharBuffer.allocate(outPos + outLen);
}
bbf.position(inPos);
bbf.put(bytes).flip().position(inPos).limit(inPos + inLen);
cbf.position(outPos);
dec.reset();
CoderResult cr = dec.decode(bbf, cbf, false);
if (cr != expedCR || bbf.position() != expedInPos || cbf.position() != expedOutPos) {
System.out.printf("Expected(direct=%5b): [", direct);
for (int i : flow) System.out.print(" " + i);
System.out.println(
"] CR=" + cr + ", inPos=" + bbf.position() + ", outPos=" + cbf.position());
return false;
}
return true;
}
protected long computeEstimatedMemorySize() {
long result = 0;
if (!textArray.isDirect()) result += (Character.SIZE / 8) * textArray.capacity();
result += (Integer.SIZE / 8) * textIndexArray.length;
result += (Double.SIZE / 8) * latlonArray.length;
return result;
}
private String digestToBase64(byte[] digest, int len) {
CharBuffer cb = CharBuffer.allocate();
Base64.encode(cb, digest, 0, len);
return cb.close();
}
static byte[] encode(char[] cc, Charset cs, boolean testDirect, Time t) throws Exception {
ByteBuffer bbf;
CharBuffer cbf;
CharsetEncoder enc = cs.newEncoder();
String csn = cs.name();
if (testDirect) {
bbf = ByteBuffer.allocateDirect(cc.length * 4);
cbf = ByteBuffer.allocateDirect(cc.length * 2).asCharBuffer();
cbf.put(cc).flip();
} else {
bbf = ByteBuffer.allocate(cc.length * 4);
cbf = CharBuffer.wrap(cc);
}
CoderResult cr = null;
long t1 = System.nanoTime() / 1000;
for (int i = 0; i < iteration; i++) {
cbf.rewind();
bbf.clear();
enc.reset();
cr = enc.encode(cbf, bbf, true);
}
long t2 = System.nanoTime() / 1000;
t.t = (t2 - t1) / iteration;
if (cr != CoderResult.UNDERFLOW) {
System.out.println("ENC-----------------");
int pos = cbf.position();
System.out.printf(" cr=%s, cbf.pos=%d, cc[pos]=%x%n", cr.toString(), pos, cc[pos] & 0xffff);
throw new RuntimeException("Encoding err: " + csn);
}
byte[] bb = new byte[bbf.position()];
bbf.flip();
bbf.get(bb);
return bb;
}
protected PlaceNameChunk createPlaceNameChunk(PlaceNameService service) {
int numChars = this.textArray.length();
CharBuffer textBuffer = newCharBuffer(numChars);
textBuffer.put(this.textArray.toString());
textBuffer.rewind();
return new PlaceNameChunk(
service, textBuffer, this.textIndexArray, this.latlonArray, this.numEntries);
}
public int read(CharBuffer cb) {
if (count-- == 0) return -1; // Indicates end of input
cb.append(capitals[rand.nextInt(capitals.length)]);
for (int i = 0; i < 4; i++) {
cb.append(vowels[rand.nextInt(vowels.length)]);
cb.append(lowers[rand.nextInt(lowers.length)]);
}
cb.append(" ");
return 10; // Number of characters appended
}
/**
* Gets a Reader for a text flavor, decoded, if necessary, for the expected charset (encoding).
* The supported representation classes are <code>java.io.Reader</code>, <code>java.lang.String
* </code>, <code>java.nio.CharBuffer</code>, <code>[C</code>, <code>java.io.InputStream</code>,
* <code>java.nio.ByteBuffer</code>, and <code>[B</code>.
*
* <p>Because text flavors which do not support the charset parameter are encoded in a
* non-standard format, this method should not be called for such flavors. However, in order to
* maintain backward-compatibility, if this method is called for such a flavor, this method will
* treat the flavor as though it supports the charset parameter and attempt to decode it
* accordingly. See <code>selectBestTextFlavor</code> for a list of text flavors which do not
* support the charset parameter.
*
* @param transferable the <code>Transferable</code> whose data will be requested in this flavor
* @return a <code>Reader</code> to read the <code>Transferable</code>'s data
* @exception IllegalArgumentException if the representation class is not one of the seven listed
* above
* @exception IllegalArgumentException if the <code>Transferable</code> has <code>null</code> data
* @exception NullPointerException if the <code>Transferable</code> is <code>null</code>
* @exception UnsupportedEncodingException if this flavor's representation is <code>
* java.io.InputStream</code>, <code>java.nio.ByteBuffer</code>, or <code>[B</code> and this
* flavor's encoding is not supported by this implementation of the Java platform
* @exception UnsupportedFlavorException if the <code>Transferable</code> does not support this
* flavor
* @exception IOException if the data cannot be read because of an I/O error
* @see #selectBestTextFlavor
* @since 1.3
*/
public Reader getReaderForText(Transferable transferable)
throws UnsupportedFlavorException, IOException {
Object transferObject = transferable.getTransferData(this);
if (transferObject == null) {
throw new IllegalArgumentException("getTransferData() returned null");
}
if (transferObject instanceof Reader) {
return (Reader) transferObject;
} else if (transferObject instanceof String) {
return new StringReader((String) transferObject);
} else if (transferObject instanceof CharBuffer) {
CharBuffer buffer = (CharBuffer) transferObject;
int size = buffer.remaining();
char[] chars = new char[size];
buffer.get(chars, 0, size);
return new CharArrayReader(chars);
} else if (transferObject instanceof char[]) {
return new CharArrayReader((char[]) transferObject);
}
InputStream stream = null;
if (transferObject instanceof InputStream) {
stream = (InputStream) transferObject;
} else if (transferObject instanceof ByteBuffer) {
ByteBuffer buffer = (ByteBuffer) transferObject;
int size = buffer.remaining();
byte[] bytes = new byte[size];
buffer.get(bytes, 0, size);
stream = new ByteArrayInputStream(bytes);
} else if (transferObject instanceof byte[]) {
stream = new ByteArrayInputStream((byte[]) transferObject);
}
if (stream == null) {
throw new IllegalArgumentException(
"transfer data is not Reader, String, CharBuffer, char array, InputStream, ByteBuffer, or byte array");
}
String encoding = getParameter("charset");
return (encoding == null)
? new InputStreamReader(stream)
: new InputStreamReader(stream, encoding);
}
static CoderResult decodeCR(byte[] bb, Charset cs, boolean testDirect) throws Exception {
CharsetDecoder dec = cs.newDecoder();
ByteBuffer bbf;
CharBuffer cbf;
if (testDirect) {
bbf = ByteBuffer.allocateDirect(bb.length);
cbf = ByteBuffer.allocateDirect(bb.length * 2).asCharBuffer();
bbf.put(bb).flip();
} else {
bbf = ByteBuffer.wrap(bb);
cbf = CharBuffer.allocate(bb.length);
}
CoderResult cr = null;
for (int i = 0; i < iteration; i++) {
bbf.rewind();
cbf.clear();
dec.reset();
cr = dec.decode(bbf, cbf, true);
}
return cr;
}
static CoderResult encodeCR(char[] cc, Charset cs, boolean testDirect) throws Exception {
ByteBuffer bbf;
CharBuffer cbf;
CharsetEncoder enc = cs.newEncoder();
if (testDirect) {
bbf = ByteBuffer.allocateDirect(cc.length * 4);
cbf = ByteBuffer.allocateDirect(cc.length * 2).asCharBuffer();
cbf.put(cc).flip();
} else {
bbf = ByteBuffer.allocate(cc.length * 4);
cbf = CharBuffer.wrap(cc);
}
CoderResult cr = null;
for (int i = 0; i < iteration; i++) {
cbf.rewind();
bbf.clear();
enc.reset();
cr = enc.encode(cbf, bbf, true);
}
return cr;
}
/**
* Check if the first X characters of a byte stream match a String.
*
* @param data The byte array to process
* @param pattern The String to match
* @return True if the pattern was found, false otherwise
*/
private static boolean bytesEqualsString(byte[] data, String pattern) {
byte[] bytes = new byte[pattern.length()];
Charset csets = Charset.forName("US-ASCII");
boolean fin = false;
int currChar = 0;
// remove any CR and/or LF characters at the beginning of the article
// data
while (!fin) {
if (currChar >= data.length) break;
byte in = data[currChar];
ByteBuffer bb = ByteBuffer.wrap(new byte[] {(byte) in});
CharBuffer cb = csets.decode(bb);
char c = cb.charAt(0);
if (data.length > 0 && (c == '\n' || c == '\r')) currChar++;
else fin = true;
if (data.length == 0) fin = true;
}
// extract bytes (chars) to check from article data
for (int i = 0; i < bytes.length && i < data.length; i++, currChar++) {
byte in = data[currChar];
bytes[i] = (byte) in;
}
// decode byte data to characters
ByteBuffer bb = ByteBuffer.wrap(bytes);
CharBuffer cb = csets.decode(bb);
// compare these characters to the pattern String
for (int i = 0; i < pattern.length(); i++) if (cb.charAt(i) != pattern.charAt(i)) return false;
return true;
}
static void testMixed(Charset cs) throws Throwable {
CharsetDecoder dec =
cs.newDecoder()
.onMalformedInput(CodingErrorAction.REPLACE)
.onUnmappableCharacter(CodingErrorAction.REPLACE);
CharsetEncoder enc =
cs.newEncoder()
.onMalformedInput(CodingErrorAction.REPLACE)
.onUnmappableCharacter(CodingErrorAction.REPLACE);
List<Integer> cps = new ArrayList<>(0x10000);
int off = 0;
int cp = 0;
while (cp < 0x10000) {
if (enc.canEncode((char) cp)) {
cps.add(cp);
}
cp++;
}
Collections.shuffle(cps);
char[] bmpCA = new char[cps.size()];
for (int i = 0; i < cps.size(); i++) bmpCA[i] = (char) (int) cps.get(i);
String bmpStr = new String(bmpCA);
// getBytes(csn);
byte[] bmpBA = bmpStr.getBytes(cs.name());
ByteBuffer bf = enc.reset().encode(CharBuffer.wrap(bmpCA));
byte[] baNIO = new byte[bf.limit()];
bf.get(baNIO, 0, baNIO.length);
if (!Arrays.equals(bmpBA, baNIO)) {
throw new RuntimeException("getBytes(csn) failed -> " + cs.name());
}
// getBytes(cs);
bmpBA = bmpStr.getBytes(cs);
if (!Arrays.equals(bmpBA, baNIO))
throw new RuntimeException("getBytes(cs) failed -> " + cs.name());
// new String(csn);
String strSC = new String(bmpBA, cs.name());
String strNIO = dec.reset().decode(ByteBuffer.wrap(bmpBA)).toString();
if (!strNIO.equals(strSC)) {
throw new RuntimeException("new String(csn) failed -> " + cs.name());
}
// new String(cs);
strSC = new String(bmpBA, cs);
if (!strNIO.equals(strSC)) throw new RuntimeException("new String(cs) failed -> " + cs.name());
}
static char[] decode(byte[] bb, Charset cs, boolean testDirect, Time t) throws Exception {
String csn = cs.name();
CharsetDecoder dec = cs.newDecoder();
ByteBuffer bbf;
CharBuffer cbf;
if (testDirect) {
bbf = ByteBuffer.allocateDirect(bb.length);
cbf = ByteBuffer.allocateDirect(bb.length * 2).asCharBuffer();
bbf.put(bb);
} else {
bbf = ByteBuffer.wrap(bb);
cbf = CharBuffer.allocate(bb.length);
}
CoderResult cr = null;
long t1 = System.nanoTime() / 1000;
for (int i = 0; i < iteration; i++) {
bbf.rewind();
cbf.clear();
dec.reset();
cr = dec.decode(bbf, cbf, true);
}
long t2 = System.nanoTime() / 1000;
t.t = (t2 - t1) / iteration;
if (cr != CoderResult.UNDERFLOW) {
System.out.println("DEC-----------------");
int pos = bbf.position();
System.out.printf(
" cr=%s, bbf.pos=%d, bb[pos]=%x,%x,%x,%x%n",
cr.toString(),
pos,
bb[pos++] & 0xff,
bb[pos++] & 0xff,
bb[pos++] & 0xff,
bb[pos++] & 0xff);
throw new RuntimeException("Decoding err: " + csn);
}
char[] cc = new char[cbf.position()];
cbf.flip();
cbf.get(cc);
return cc;
}
protected CharSequence getText(int index) {
int beginIndex = textIndexArray[index];
int endIndex = (index + 1 < numEntries) ? textIndexArray[index + 1] : textArray.length();
return this.textArray.subSequence(beginIndex, endIndex);
}
/**
* Serializes a <code>DBObject</code> into a string that can be sent to the database.
*
* <p>There is a pool of available encoders. Create a new one as follows:
*
* <blockquote>
*
* </pre>
*
* ByteEncoder encoder = ByteEncoder.get(); // try forever until an encoder is available </pre>
*
* </blockquote>
*
* <p>Each key/value pair in the <code>DBObject</code> is encoded in the following format:
*
* <blockquote>
*
* <i><type (</i><code>byte</code><i>)><name (</i><code>String</code></i>)><0 (</i>
* <code>byte</code><i>)><data (serialized data)></i>
*
* </blockquote>
*
* For example:
*
* <blockquote>
*
* <<code>NUMBER</code>><name>0<double> <code>// NUMBER = 1</code><br>
* <<code>STRING</code>><name>0<len><string>0 <code>// STRING = 2</code>
*
* </blockquote>
*/
public class ByteEncoder extends Bytes {
static final boolean DEBUG = Boolean.getBoolean("DEBUG.BE");
// things that won't get sent in the scope
static final Set<String> BAD_GLOBALS = new HashSet<String>();
static {
BAD_GLOBALS.add("db");
BAD_GLOBALS.add("local");
BAD_GLOBALS.add("core");
BAD_GLOBALS.add("args"); // TODO: should we get rid of this
BAD_GLOBALS.add("obj"); // TODO: get rid of this
}
/**
* Whether a given field is generated by the db for use by the db
*
* @param o an object to check
* @return whether the object is a db field
*/
public static boolean dbOnlyField(Object o) {
if (o == null) return false;
if (o instanceof String) return dbOnlyField(o.toString());
return false;
}
/**
* Whether a given field is generated by the db for use by the db
*
* @param s a string to check
* @return whether the string is a db field
*/
public static boolean dbOnlyField(String s) {
return s.equals("_ns") || s.equals("_save") || s.equals("_update");
}
/**
* Fetches a new <code>ByteEncoder</code> from the pool of available <code>ByteEncoder</code>s.
*
* @return a new <code>ByteEncoder</code>
*/
public static ByteEncoder get() {
return _pool.get();
}
/**
* Get the current position of this ByteEncoder
*
* @return
*/
public long getPosition() {
return _buf.position();
}
/**
* Get the remaining capacity of this ByteEncoder
*
* @return
*/
public long getRemaining() {
return _buf.remaining();
}
/** Resets and returns this encoder to the pool. */
protected void done() {
reset();
_pool.done(this);
}
static final SimplePool<ByteEncoder> _pool =
new SimplePool<ByteEncoder>("ByteEncoders", NUM_ENCODERS, NUM_ENCODERS * 2) {
protected ByteEncoder createNew() {
if (D) System.out.println("creating new ByteEncoder");
return new ByteEncoder();
}
protected long memSize(ByteEncoder d) {
return d._buf.capacity() + (2 * MAX_STRING) + 1024;
}
};
// ----
private ByteEncoder() {
_buf = ByteBuffer.allocateDirect(MAX_OBJECT_SIZE + 2048);
_buf.order(Bytes.ORDER);
}
/**
* Returns the bytes in the bytebuffer. Attempts to leave the bytebuffer in the same state. Note
* that mark, if set, is lost.
*
* @return array of bytes
*/
public byte[] getBytes() {
int pos = _buf.position();
int limit = _buf.limit();
flip();
byte[] arr = new byte[_buf.limit()];
_buf.get(arr);
flip();
_buf.position(pos);
_buf.limit(limit);
return arr;
}
/** Returns encoder to its starting state, ready to encode an object. */
protected void reset() {
_buf.position(0);
_buf.limit(_buf.capacity());
_flipped = false;
_dontRef.clear();
}
/** Switches the encoder from being write-only to being read-only. */
protected void flip() {
_buf.flip();
_flipped = true;
}
/**
* Encodes a <code>DBObject</code>. This is for the higher level api calls
*
* <p>If encoding an object fails, the buffer will be reset to the position prior to this put call
* and a BufferOverflowException will be thrown
*
* @param o the object to encode
* @return the number of characters in the encoding
*/
public int putObject(DBObject o) {
_buf.mark();
try {
return putObject(null, o);
} catch (BufferOverflowException bof) {
// reset to marked offset and wipe any written data
_buf.reset();
_buf.put(new byte[_buf.remaining()]);
_buf.reset();
throw new BufferOverflowException();
}
}
/** this is really for embedded objects */
private int putObject(String name, DBObject o) {
if (o == null) throw new NullPointerException("can't save a null object");
if (DEBUG)
System.out.println(
"putObject : " + name + " [" + o.getClass() + "]" + " # keys " + o.keySet().size());
if (_flipped) throw new IllegalStateException("already flipped");
final int start = _buf.position();
byte myType = OBJECT;
if (o instanceof List) myType = ARRAY;
if (_handleSpecialObjects(name, o)) return _buf.position() - start;
if (name != null) {
_put(myType, name);
}
final int sizePos = _buf.position();
_buf.putInt(0); // leaving space for this. set it at the end
List transientFields = null;
if (myType == OBJECT) {
if (o.containsField("_id")) _putObjectField("_id", o.get("_id"));
{
Object temp = o.get("_transientFields");
if (temp instanceof List) transientFields = (List) temp;
}
}
for (String s : o.keySet()) {
if (s.equals("_id")) continue;
if (transientFields != null && transientFields.contains(s)) continue;
Object val = o.get(s);
_putObjectField(s, val);
}
_buf.put(EOO);
_buf.putInt(sizePos, _buf.position() - sizePos);
return _buf.position() - start;
}
private void _putObjectField(String name, Object val) {
if (dbOnlyField(name) || name.equals("_transientFields")) return;
if (DEBUG) System.out.println("\t put thing : " + name);
if (name.equals("$where") && val instanceof String) {
_put(CODE, name);
_putValueString(val.toString());
return;
}
val = Bytes.applyEncodingHooks(val);
if (val == null) putNull(name);
else if (val instanceof Date) putDate(name, (Date) val);
else if (val instanceof Number) putNumber(name, (Number) val);
else if (val instanceof String) putString(name, val.toString());
else if (val instanceof ObjectId) putObjectId(name, (ObjectId) val);
else if (val instanceof DBObject) putObject(name, (DBObject) val);
else if (val instanceof Boolean) putBoolean(name, (Boolean) val);
else if (val instanceof Pattern) putPattern(name, (Pattern) val);
else if (val instanceof DBRegex) {
putDBRegex(name, (DBRegex) val);
} else if (val instanceof Map) putMap(name, (Map) val);
else if (val instanceof List) putList(name, (List) val);
else if (val instanceof byte[]) putBinary(name, (byte[]) val);
else if (val instanceof DBBinary) putBinary(name, (DBBinary) val);
else if (val.getClass().isArray()) putList(name, Arrays.asList((Object[]) val));
else if (val instanceof DBPointer) {
// temporary - there's the notion of "special object" , but for simple level 0...
DBPointer r = (DBPointer) val;
putDBPointer(name, r._ns, (ObjectId) r._id);
} else if (val instanceof DBRefBase) {
putDBRef(name, (DBRefBase) val);
} else if (val instanceof DBSymbol) {
putSymbol(name, (DBSymbol) val);
} else if (val instanceof DBUndefined) {
putUndefined(name);
} else if (val instanceof DBTimestamp) {
putTimestamp(name, (DBTimestamp) val);
} else throw new IllegalArgumentException("can't serialize " + val.getClass());
}
private void putList(String name, List l) {
_put(ARRAY, name);
final int sizePos = _buf.position();
_buf.putInt(0);
for (int i = 0; i < l.size(); i++) _putObjectField(String.valueOf(i), l.get(i));
_buf.put(EOO);
_buf.putInt(sizePos, _buf.position() - sizePos);
}
private void putMap(String name, Map m) {
_put(OBJECT, name);
final int sizePos = _buf.position();
_buf.putInt(0);
for (Object key : m.keySet()) _putObjectField(key.toString(), m.get(key));
_buf.put(EOO);
_buf.putInt(sizePos, _buf.position() - sizePos);
}
private boolean _handleSpecialObjects(String name, DBObject o) {
if (o == null) return false;
if (o instanceof DBCollection) {
DBCollection c = (DBCollection) o;
putDBPointer(name, c.getName(), Bytes.COLLECTION_REF_ID);
return true;
}
if (!_dontRefContains(o) && name != null && o instanceof DBPointer) {
DBPointer r = (DBPointer) o;
putDBPointer(name, r._ns, (ObjectId) r._id);
return true;
}
if (!(o instanceof List) && o.get(Bytes.NO_REF_HACK) != null) {
o.removeField(Bytes.NO_REF_HACK);
return false;
}
if (!_dontRefContains(o) && name != null && !(o instanceof List) && cameFromDB(o)) {
putDBPointer(name, o.get("_ns").toString(), (ObjectId) (o.get("_id")));
return true;
}
return false;
}
protected int putNull(String name) {
int start = _buf.position();
_put(NULL, name);
return _buf.position() - start;
}
protected int putUndefined(String name) {
int start = _buf.position();
_put(UNDEFINED, name);
return _buf.position() - start;
}
protected int putTimestamp(String name, DBTimestamp ts) {
int start = _buf.position();
_put(TIMESTAMP, name);
_buf.putInt(ts.getTime());
_buf.putInt(ts.getInc());
return _buf.position() - start;
}
protected int putBoolean(String name, Boolean b) {
int start = _buf.position();
_put(BOOLEAN, name);
_buf.put(b ? (byte) 0x1 : (byte) 0x0);
return _buf.position() - start;
}
protected int putDate(String name, Date d) {
int start = _buf.position();
_put(DATE, name);
_buf.putLong(d.getTime());
return _buf.position() - start;
}
protected int putNumber(String name, Number n) {
int start = _buf.position();
if (n instanceof Integer) {
_put(NUMBER_INT, name);
_buf.putInt(n.intValue());
} else if (n instanceof Long) {
_put(NUMBER_LONG, name);
_buf.putLong(n.longValue());
} else {
_put(NUMBER, name);
_buf.putDouble(n.doubleValue());
}
return _buf.position() - start;
}
protected void putBinary(String name, byte[] data) {
_put(BINARY, name);
_buf.putInt(4 + data.length);
_buf.put(B_BINARY);
_buf.putInt(data.length);
int before = _buf.position();
_buf.put(data);
int after = _buf.position();
com.mongodb.util.MyAsserts.assertEquals(after - before, data.length);
}
protected void putBinary(String name, DBBinary val) {
_put(BINARY, name);
_buf.putInt(val._data.length);
_buf.put(val._type);
_buf.put(val._data);
}
protected int putSymbol(String name, DBSymbol s) {
return _putString(name, s.getSymbol(), SYMBOL);
}
protected int putString(String name, String s) {
return _putString(name, s, STRING);
}
private int _putString(String name, String s, byte type) {
int start = _buf.position();
_put(type, name);
_putValueString(s);
return _buf.position() - start;
}
protected int putObjectId(String name, ObjectId oid) {
int start = _buf.position();
_put(OID, name);
_buf.putInt(oid._time);
_buf.putInt(oid._machine);
_buf.putInt(oid._inc);
return _buf.position() - start;
}
protected int putDBPointer(String name, String ns, ObjectId oid) {
int start = _buf.position();
_put(REF, name);
_putValueString(ns);
_buf.putInt(oid._time);
_buf.putInt(oid._machine);
_buf.putInt(oid._inc);
return _buf.position() - start;
}
protected void putDBRef(String name, DBRefBase ref) {
_put(OBJECT, name);
final int sizePos = _buf.position();
_buf.putInt(0);
_putObjectField("$ref", ref.getRef());
_putObjectField("$id", ref.getId());
_buf.put(EOO);
_buf.putInt(sizePos, _buf.position() - sizePos);
}
private int putDBRegex(String name, DBRegex regex) {
int start = _buf.position();
_put(REGEX, name);
_put(regex.getPattern());
String options = regex.getOptions();
TreeMap<Character, Character> sm = new TreeMap<Character, Character>();
for (int i = 0; i < options.length(); i++) {
sm.put(options.charAt(i), options.charAt(i));
}
StringBuffer sb = new StringBuffer();
for (char c : sm.keySet()) {
sb.append(c);
}
_put(sb.toString());
return _buf.position() - start;
}
private int putPattern(String name, Pattern p) {
int start = _buf.position();
_put(REGEX, name);
_put(p.pattern());
_put(patternFlags(p.flags()));
return _buf.position() - start;
}
// ----------------------------------------------
/** Encodes the type and key. */
private void _put(byte type, String name) {
_buf.put(type);
_put(name);
}
void _putValueString(String s) {
int lenPos = _buf.position();
_buf.putInt(0); // making space for size
int strLen = _put(s);
_buf.putInt(lenPos, strLen);
}
int _put(String name) {
_cbuf.position(0);
_cbuf.limit(_cbuf.capacity());
_cbuf.append(name);
_cbuf.flip();
final int start = _buf.position();
_encoder.encode(_cbuf, _buf, false);
_buf.put((byte) 0);
return _buf.position() - start;
}
boolean _dontRefContains(Object o) {
if (_dontRef.size() == 0) return false;
return _dontRef.peek().contains(o);
}
private final CharBuffer _cbuf = CharBuffer.allocate(MAX_STRING);
private final CharsetEncoder _encoder = _utf8.newEncoder();
private Stack<IdentitySet> _dontRef = new Stack<IdentitySet>();
private boolean _flipped = false;
final ByteBuffer _buf;
}
static void test(Charset cs, char[] bmpCA, byte[] sbBA) throws Throwable {
String bmpStr = new String(bmpCA);
CharsetDecoder dec =
cs.newDecoder()
.onMalformedInput(CodingErrorAction.REPLACE)
.onUnmappableCharacter(CodingErrorAction.REPLACE);
CharsetEncoder enc =
cs.newEncoder()
.onMalformedInput(CodingErrorAction.REPLACE)
.onUnmappableCharacter(CodingErrorAction.REPLACE);
// getBytes(csn);
byte[] baSC = bmpStr.getBytes(cs.name());
ByteBuffer bf = enc.reset().encode(CharBuffer.wrap(bmpCA));
byte[] baNIO = new byte[bf.limit()];
bf.get(baNIO, 0, baNIO.length);
if (!Arrays.equals(baSC, baNIO))
throw new RuntimeException("getBytes(csn) failed -> " + cs.name());
// getBytes(cs);
baSC = bmpStr.getBytes(cs);
if (!Arrays.equals(baSC, baNIO))
throw new RuntimeException("getBytes(cs) failed -> " + cs.name());
// new String(csn);
String strSC = new String(sbBA, cs.name());
String strNIO = dec.reset().decode(ByteBuffer.wrap(sbBA)).toString();
if (!strNIO.equals(strSC))
throw new RuntimeException("new String(csn) failed -> " + cs.name());
// new String(cs);
strSC = new String(sbBA, cs);
if (!strNIO.equals(strSC)) throw new RuntimeException("new String(cs) failed -> " + cs.name());
// encode unmappable surrogates
if (enc instanceof sun.nio.cs.ArrayEncoder && cs.contains(Charset.forName("ASCII"))) {
if (cs.name().equals("UTF-8")
|| // utf8 handles surrogates
cs.name().equals("CESU-8")) // utf8 handles surrogates
return;
enc.replaceWith(new byte[] {(byte) 'A'});
sun.nio.cs.ArrayEncoder cae = (sun.nio.cs.ArrayEncoder) enc;
String str = "ab\uD800\uDC00\uD800\uDC00cd";
byte[] ba = new byte[str.length() - 2];
int n = cae.encode(str.toCharArray(), 0, str.length(), ba);
if (n != 6 || !"abAAcd".equals(new String(ba, cs.name())))
throw new RuntimeException("encode1(surrogates) failed -> " + cs.name());
ba = new byte[str.length()];
n = cae.encode(str.toCharArray(), 0, str.length(), ba);
if (n != 6 || !"abAAcd".equals(new String(ba, 0, n, cs.name())))
throw new RuntimeException("encode2(surrogates) failed -> " + cs.name());
str = "ab\uD800B\uDC00Bcd";
ba = new byte[str.length()];
n = cae.encode(str.toCharArray(), 0, str.length(), ba);
if (n != 8 || !"abABABcd".equals(new String(ba, 0, n, cs.name())))
throw new RuntimeException("encode3(surrogates) failed -> " + cs.name());
/* sun.nio.cs.ArrayDeEncoder works on the assumption that the
invoker (StringCoder) allocates enough output buf, utf8
and double-byte coder does not check the output buffer limit.
ba = new byte[str.length() - 1];
n = cae.encode(str.toCharArray(), 0, str.length(), ba);
if (n != 7 || !"abABABc".equals(new String(ba, 0, n, cs.name()))) {
throw new RuntimeException("encode4(surrogates) failed -> "
+ cs.name());
}
*/
}
}