/**
* Indicates whether this reader is ready to be read without blocking.
*
* @return {@code true} if this reader will not block when {@code read} is called, {@code false}
* if unknown or blocking will occur.
* @throws IOException if this reader is closed or some other I/O error occurs.
* @see #read()
* @see #read(char[], int, int)
* @see #readLine()
*/
@Override
public boolean ready() throws IOException {
synchronized (lock) {
if (isClosed()) {
throw new IOException(Msg.getString("K005b")); // $NON-NLS-1$
}
return ((end - pos) > 0) || in.ready();
}
}
/**
* Reads at most {@code length} bytes from the filtered stream and stores them in the byte array
* {@code buffer} starting at {@code offset}. Returns the number of bytes actually read or -1 if
* no bytes have been read and the end of this stream has been reached.
*
* <p>The line number count is incremented if a line terminator is encountered. Recognized line
* terminator sequences are {@code '\r'}, {@code '\n'} and {@code "\r\n"}. Line terminator
* sequences are always translated into {@code '\n'}.
*
* @param buffer the array in which to store the bytes read.
* @param offset the initial position in {@code buffer} to store the bytes read from this stream.
* @param length the maximum number of bytes to store in {@code buffer}.
* @return the number of bytes actually read or -1 if the end of the filtered stream has been
* reached while reading.
* @throws IndexOutOfBoundsException if {@code offset < 0} or {@code length < 0}, or if {@code
* offset + length} is greater than the length of {@code buffer}.
* @throws IOException if this stream is closed or another IOException occurs.
* @throws NullPointerException if {@code buffer} is {@code null}.
* @since Android 1.0
*/
@Override
public int read(byte[] buffer, int offset, int length) throws IOException {
// BEGIN android-changed
if (buffer == null) {
throw new NullPointerException(Msg.getString("K0047")); // $NON-NLS-1$
}
// avoid int overflow
// Exception priorities (in case of multiple errors) differ from
// RI, but are spec-compliant.
// removed redundant check, used (offset | length) < 0
// instead of (offset < 0) || (length < 0) to safe one operation
if ((offset | length) < 0 || length > buffer.length - offset) {
throw new ArrayIndexOutOfBoundsException(Msg.getString("K002f")); // $NON-NLS-1$
}
// END android-changed
for (int i = 0; i < length; i++) {
int currentChar;
try {
currentChar = read();
} catch (IOException e) {
if (i != 0) {
return i;
}
throw e;
}
if (currentChar == -1) {
return i == 0 ? -1 : i;
}
buffer[offset + i] = (byte) currentChar;
}
return length;
}
/** Bind using a SOCKS server. */
private void socksBind() throws IOException {
try {
netImpl.connect(fd, trafficClass, socksGetServerAddress(), socksGetServerPort());
} catch (Exception e) {
throw new IOException(Msg.getString("K003f", e)); // $NON-NLS-1$
}
// There must be a connection to an application host for the bind to
// work.
if (lastConnectedAddress == null) {
throw new SocketException(Msg.getString("K0040")); // $NON-NLS-1$
}
// Use the last connected address and port in the bind request.
socksSendRequest(Socks4Message.COMMAND_BIND, lastConnectedAddress, lastConnectedPort);
Socks4Message reply = socksReadReply();
if (reply.getCommandOrResult() != Socks4Message.RETURN_SUCCESS) {
throw new IOException(reply.getErrorString(reply.getCommandOrResult()));
}
// A peculiarity of socks 4 - if the address returned is 0, use the
// original socks server address.
if (reply.getIP() == 0) {
address = socksGetServerAddress();
} else {
// IPv6 support not yet required as
// currently the Socks4Message.getIP() only returns int,
// so only works with IPv4 4byte addresses
byte[] replyBytes = new byte[4];
NetUtil.intToBytes(reply.getIP(), replyBytes, 0);
address = InetAddress.getByAddress(replyBytes);
}
localport = reply.getPort();
}
/**
* Returns the {@code InetAddress} corresponding to the array of bytes, and the given hostname. In
* the case of an IPv4 address there must be exactly 4 bytes and for IPv6 exactly 16 bytes. If
* not, an {@code UnknownHostException} is thrown. The host name and IP address are not validated.
* The hostname either be a machine alias or a valid IPv6 or IPv4 address format. The high order
* byte is {@code ipAddress[0]}.
*
* @param hostName string representation of hostname or IP address.
* @param ipAddress either a 4 (IPv4) or 16 (IPv6) byte array.
* @param scope_id the scope id for a scoped address. If not a scoped address just pass in 0.
* @return the InetAddress
* @throws UnknownHostException
*/
static InetAddress getByAddressInternal(String hostName, byte[] ipAddress, int scope_id)
throws UnknownHostException {
if (ipAddress == null) {
// We don't throw NullPointerException here for RI compatibility,
// but we do say "address is null" (K0331), instead of "addr is of
// illegal length".
throw new UnknownHostException(Msg.getString("K0331", hostName)); // $NON-NLS-1$
}
switch (ipAddress.length) {
case 4:
return new Inet4Address(ipAddress.clone());
case 16:
// First check to see if the address is an IPv6-mapped
// IPv4 address. If it is, then we can make it a IPv4
// address, otherwise, we'll create an IPv6 address.
if (isIPv4MappedAddress(ipAddress)) {
return new Inet4Address(ipv4MappedToIPv4(ipAddress));
} else {
return new Inet6Address(ipAddress.clone(), scope_id);
}
default:
if (hostName != null) {
// "Invalid IP Address is neither 4 or 16 bytes: <hostName>"
throw new UnknownHostException(Msg.getString("K0332", hostName)); // $NON-NLS-1$
} else {
// "Invalid IP Address is neither 4 or 16 bytes"
throw new UnknownHostException(Msg.getString("K0339")); // $NON-NLS-1$
}
}
}
@Override
public int read(byte[] buf, int offset, int length) throws IOException {
// Force buf null check first, and avoid int overflow
if (offset > buf.length || offset < 0) {
// K002e=Offset out of bounds \: {0}
throw new ArrayIndexOutOfBoundsException(Msg.getString("K002e", offset)); // $NON-NLS-1$
}
if (length < 0 || buf.length - offset < length) {
// K0031=Length out of bounds \: {0}
throw new ArrayIndexOutOfBoundsException(Msg.getString("K0031", length)); // $NON-NLS-1$
}
if (bytesRemaining <= 0) {
readChunkSize();
}
if (atEnd) {
disconnect(false);
return -1;
}
if (length > bytesRemaining) {
length = bytesRemaining;
}
int result = is.read(buf, offset, length);
if (result > 0) {
bytesRemaining -= result;
// if user has set useCache to true and cache exists, write to
// it
if (useCaches && null != cacheOut) {
cacheOut.write(buf, offset, result);
}
}
return result;
}
/**
* Reads at most {@code length} bytes from the filtered stream and stores them in the byte array
* {@code buffer} starting at {@code offset}. Returns the number of bytes actually read or -1 if
* no bytes have been read and the end of this stream has been reached.
*
* <p>The line number count is incremented if a line terminator is encountered. Recognized line
* terminator sequences are {@code '\r'}, {@code '\n'} and {@code "\r\n"}. Line terminator
* sequences are always translated into {@code '\n'}.
*
* @param buffer the array in which to store the bytes read.
* @param offset the initial position in {@code buffer} to store the bytes read from this stream.
* @param length the maximum number of bytes to store in {@code buffer}.
* @return the number of bytes actually read or -1 if the end of the filtered stream has been
* reached while reading.
* @throws IndexOutOfBoundsException if {@code offset < 0} or {@code length < 0}, or if {@code
* offset + length} is greater than the length of {@code buffer}.
* @throws IOException if this stream is closed or another IOException occurs.
* @throws NullPointerException if {@code buffer} is {@code null}.
*/
@Override
public int read(byte[] buffer, int offset, int length) throws IOException {
// Force buffer null check first!
if (offset > buffer.length || offset < 0) {
// K002e=Offset out of bounds \: {0}
throw new ArrayIndexOutOfBoundsException(Msg.getString("K002e", offset)); // $NON-NLS-1$
}
if (length < 0 || length > buffer.length - offset) {
// K0031=Length out of bounds \: {0}
throw new ArrayIndexOutOfBoundsException(Msg.getString("K0031", length)); // $NON-NLS-1$
}
for (int i = 0; i < length; i++) {
int currentChar;
try {
currentChar = read();
} catch (IOException e) {
if (i != 0) {
return i;
}
throw e;
}
if (currentChar == -1) {
return i == 0 ? -1 : i;
}
buffer[offset + i] = (byte) currentChar;
}
return length;
}
@Override
public OutputStream getOutputStream() throws IOException {
if (!doOutput) {
throw new ProtocolException(Msg.getString("K008e")); // $NON-NLS-1$
}
// you can't write after you read
if (sentRequest) {
throw new ProtocolException(Msg.getString("K0090")); // $NON-NLS-1$
}
if (os != null) {
return os;
}
// they are requesting a stream to write to. This implies a POST method
if (method == GET) {
method = POST;
}
// If the request method is neither PUT or POST, then you're not writing
if (method != PUT && method != POST) {
throw new ProtocolException(Msg.getString("K008f", method)); // $NON-NLS-1$
}
int limit = -1;
String contentLength = reqHeader.get("Content-Length"); // $NON-NLS-1$
if (contentLength != null) {
limit = Integer.parseInt(contentLength);
}
String encoding = reqHeader.get("Transfer-Encoding"); // $NON-NLS-1$
if (httpVersion > 0 && encoding != null) {
encoding = encoding.toLowerCase();
if ("chunked".equals(encoding)) { // $NON-NLS-1$
sendChunked = true;
limit = -1;
}
}
// if user has set chunk/fixedLength mode, use that value
if (chunkLength > 0) {
sendChunked = true;
limit = -1;
}
if (fixedContentLength >= 0) {
limit = fixedContentLength;
}
if ((httpVersion > 0 && sendChunked) || limit >= 0) {
os = new HttpOutputStream(limit);
doRequest();
return os;
}
if (!connected) {
// connect and see if there is cache available.
connect();
}
return os = new HttpOutputStream();
}
/**
* Resets this reader's position to the last {@code mark()} location. Invocations of {@code
* read()} and {@code skip()} will occur from this new location.
*
* @throws IOException if this reader is closed or no mark has been set.
* @see #mark(int)
* @see #markSupported()
*/
@Override
public void reset() throws IOException {
synchronized (lock) {
if (isClosed()) {
throw new IOException(Msg.getString("K005b")); // $NON-NLS-1$
}
if (mark == -1) {
throw new IOException(Msg.getString("K005c")); // $NON-NLS-1$
}
pos = mark;
}
}
@Override
protected synchronized OutputStream getOutputStream() throws IOException {
if (!fd.valid()) {
throw new SocketException(Msg.getString("K003d")); // $NON-NLS-1$
}
return new SocketOutputStream(this);
}
/**
* Tries to reach this {@code InetAddress}. This method first tries to use ICMP <i>(ICMP ECHO
* REQUEST)</i>. When first step fails, a TCP connection on port 7 (Echo) of the remote host is
* established.
*
* @param netif the network interface on which to connection should be established.
* @param ttl the maximum count of hops (time-to-live).
* @param timeout timeout in milliseconds before the test fails if no connection could be
* established.
* @return {@code true} if this address is reachable, {@code false} otherwise.
* @throws IOException if an error occurs during an I/O operation.
* @throws IllegalArgumentException if ttl or timeout is less than zero.
*/
public boolean isReachable(NetworkInterface netif, final int ttl, final int timeout)
throws IOException {
if (0 > ttl || 0 > timeout) {
throw new IllegalArgumentException(Msg.getString("K0051")); // $NON-NLS-1$
}
boolean reachable = false;
if (null == netif) {
// network interface is null, binds to no address
// BEGIN android-changed
// reachable = NETIMPL.isReachableByICMP(this, null, ttl, timeout);
// if (!reachable) {
reachable = isReachableByTCP(this, null, timeout);
// }
// END android-changed
} else {
// Not Bind to any address
if (null == netif.addresses) {
return false;
}
// binds to all address on this NetworkInterface, tries ICMP ping
// first
// BEGIN android-changed
// reachable = isReachableByICMPUseMultiThread(netif, ttl, timeout);
// if (!reachable) {
// tries TCP echo if ICMP ping fails
reachable = isReachableByMultiThread(netif, ttl, timeout);
// }
// END adnroid-changed
}
return reachable;
}
@Override
public Map<String, List<String>> getRequestProperties() {
if (connected) {
throw new IllegalStateException(Msg.getString("K0091")); // $NON-NLS-1$
}
return reqHeader.getFieldMap();
}
@Override
public synchronized void write(int data) throws IOException {
if (closed) {
throw new IOException(Msg.getString("K0059")); // $NON-NLS-1$
}
if (limit >= 0) {
if (limit == 0) {
throw new IOException(Msg.getString("K00b2")); // $NON-NLS-1$
}
limit--;
}
cache.write(data);
if (writeToSocket && cache.size() >= cacheLength) {
sendCache(false);
}
}
/**
* Skips {@code amount} characters in this reader. Subsequent {@code read()}s will not return
* these characters unless {@code reset()} is used. Skipping characters may invalidate a mark if
* {@code markLimit} is surpassed.
*
* @param amount the maximum number of characters to skip.
* @return the number of characters actually skipped.
* @throws IllegalArgumentException if {@code amount < 0}.
* @throws IOException if this reader is closed or some other I/O error occurs.
* @see #mark(int)
* @see #markSupported()
* @see #reset()
*/
@Override
public long skip(long amount) throws IOException {
if (amount < 0) {
throw new IllegalArgumentException();
}
synchronized (lock) {
if (isClosed()) {
throw new IOException(Msg.getString("K005b")); // $NON-NLS-1$
}
if (amount < 1) {
return 0;
}
if (end - pos >= amount) {
pos += amount;
return amount;
}
long read = end - pos;
pos = end;
while (read < amount) {
if (fillBuf() == -1) {
return read;
}
if (end - pos >= amount - read) {
pos += amount - read;
return amount;
}
// Couldn't get all the characters, skip what we read
read += (end - pos);
pos = end;
}
return amount;
}
}
/**
* Constructs a new BufferedReader on the Reader {@code in}. The buffer size is specified by the
* parameter {@code size}.
*
* @param in the Reader that is buffered.
* @param size the size of the buffer to allocate.
* @throws IllegalArgumentException if {@code size <= 0}.
*/
public BufferedReader(Reader in, int size) {
super(in);
if (size <= 0) {
throw new IllegalArgumentException(Msg.getString("K0058")); // $NON-NLS-1$
}
this.in = in;
buf = new char[size];
}
@Override
public synchronized void write(byte[] buffer, int offset, int count) throws IOException {
if (closed) {
throw new IOException(Msg.getString("K0059")); // $NON-NLS-1$
}
if (buffer == null) {
throw new NullPointerException();
}
// avoid int overflow
if (offset < 0 || count < 0 || offset > buffer.length || buffer.length - offset < count) {
throw new ArrayIndexOutOfBoundsException(Msg.getString("K002f")); // $NON-NLS-1$
}
if (limit >= 0) {
if (count > limit) {
throw new IOException(Msg.getString("K00b2")); // $NON-NLS-1$
}
limit -= count;
cache.write(buffer, offset, count);
if (limit == 0) {
socketOut.write(cache.toByteArray());
}
} else {
if (!writeToSocket || cache.size() + count < cacheLength) {
cache.write(buffer, offset, count);
} else {
output(Integer.toHexString(cacheLength) + "\r\n"); // $NON-NLS-1$
int writeNum = cacheLength - cache.size();
cache.write(buffer, offset, writeNum);
socketOut.write(cache.toByteArray());
output("\r\n"); // $NON-NLS-1$
cache.reset();
int left = count - writeNum;
int position = offset + writeNum;
while (left > cacheLength) {
output(Integer.toHexString(cacheLength) + "\r\n"); // $NON-NLS-1$
socketOut.write(buffer, position, cacheLength);
output("\r\n"); // $NON-NLS-1$
left = left - cacheLength;
position = position + cacheLength;
}
cache.write(buffer, position, left);
}
}
}
// BEGIN android-changed
// static native InetAddress getHostByAddrImpl(byte[] addr)
// throws UnknownHostException;
static InetAddress getHostByAddrImpl(byte[] addr) throws UnknownHostException {
if (addr.length == 4) {
return new Inet4Address(addr, getnameinfo(addr));
} else if (addr.length == 16) {
return new Inet6Address(addr, getnameinfo(addr));
} else {
throw new UnknownHostException(Msg.getString("K0339")); // $NON-NLS-1$
}
}
private void setProxy(String proxy) {
int index = proxy.indexOf(':');
if (index == -1) {
proxyName = proxy;
hostPort = defaultPort;
} else {
proxyName = proxy.substring(0, index);
String port = proxy.substring(index + 1);
try {
hostPort = Integer.parseInt(port);
} catch (NumberFormatException e) {
throw new IllegalArgumentException(Msg.getString("K00af", port)); // $NON-NLS-1$
}
if (hostPort < 0 || hostPort > 65535) {
throw new IllegalArgumentException(Msg.getString("K00b0")); // $NON-NLS-1$
}
}
}
/**
* Constructs a new BufferedReader with <code>out</code> as the Writer on which buffer write
* operations. The buffer size is set to <code>size</code>.
*
* @param out The Writer to buffer character writing on.
* @param size The size of the buffer to use.
*/
public BufferedWriter(Writer out, int size) {
super(out);
if (size > 0) {
this.out = out;
this.buf = new char[size];
} else {
throw new IllegalArgumentException(Msg.getString("K0058")); // $NON-NLS-1$
}
}
@Override
public void setRequestProperty(String field, String newValue) {
if (connected) {
throw new IllegalStateException(Msg.getString("K0092")); // $NON-NLS-1$
}
if (field == null) {
throw new NullPointerException();
}
reqHeader.set(field, newValue);
}
@Override
public void addRequestProperty(String field, String value) {
if (connected) {
throw new IllegalAccessError(Msg.getString("K0092")); // $NON-NLS-1$
}
if (field == null) {
throw new NullPointerException();
}
reqHeader.add(field, value);
}
@Override
public synchronized void flush() throws IOException {
if (closed) {
throw new IOException(Msg.getString("K0059")); // $NON-NLS-1$
}
if (writeToSocket) {
sendCache(false);
socketOut.flush();
}
}
/** Issue the STOR command to the server with the file as the parameter */
private void sendFile() throws IOException {
int reply;
write(
"STOR " //$NON-NLS-1$
+ url.getFile().substring(url.getFile().lastIndexOf('/') + 1, url.getFile().length())
+ "\r\n"); //$NON-NLS-1$
reply = getReply();
if (!(reply == FTP_OPENDATA || reply == FTP_OK || reply == FTP_DATAOPEN)) {
throw new IOException(Msg.getString("K009a")); // $NON-NLS-1$
}
}
/**
* Writes {@code count} characters starting at {@code offset} in {@code buf} to this writer. The
* characters are immediately converted to bytes by the character converter and stored in a local
* buffer. If the buffer gets full as a result of the conversion, this writer is flushed.
*
* @param buf the array containing characters to write.
* @param offset the index of the first character in {@code buf} to write.
* @param count the maximum number of characters to write.
* @throws IndexOutOfBoundsException if {@code offset < 0} or {@code count < 0}, or if {@code
* offset + count} is greater than the size of {@code buf}.
* @throws IOException if this writer has already been closed or another I/O error occurs.
*/
@Override
public void write(char[] buf, int offset, int count) throws IOException {
synchronized (lock) {
checkStatus();
// BEGIN android-changed
// Exception priorities (in case of multiple errors) differ from
// RI, but are spec-compliant.
// made implicit null check explicit,
// used (offset | count) < 0 instead of (offset < 0) || (count < 0)
// to safe one operation
if (buf == null) {
throw new NullPointerException(Msg.getString("K0047")); // $NON-NLS-1$
}
if ((offset | count) < 0 || offset > buf.length - count) {
throw new IndexOutOfBoundsException(Msg.getString("K002f")); // $NON-NLS-1$
}
// END android-changed
CharBuffer chars = CharBuffer.wrap(buf, offset, count);
convert(chars);
}
}
private void login() throws IOException {
int reply;
reply = getReply();
if (reply == FTP_USERREADY) {
} else {
throw new IOException(Msg.getString("K0097", url.getHost())); // $NON-NLS-1$
}
write("USER " + username + "\r\n"); // $NON-NLS-1$ //$NON-NLS-2$
reply = getReply();
if (reply == FTP_PASWD || reply == FTP_LOGGEDIN) {
} else {
throw new IOException(Msg.getString("K0098", url.getHost())); // $NON-NLS-1$
}
if (reply == FTP_PASWD) {
write("PASS " + password + "\r\n"); // $NON-NLS-1$ //$NON-NLS-2$
reply = getReply();
if (!(reply == FTP_OK || reply == FTP_USERREADY || reply == FTP_LOGGEDIN)) {
throw new IOException(Msg.getString("K0098", url.getHost())); // $NON-NLS-1$
}
}
}
/**
* Writes {@code count} characters starting at {@code offset} in {@code str} to this writer. The
* characters are immediately converted to bytes by the character converter and stored in a local
* buffer. If the buffer gets full as a result of the conversion, this writer is flushed.
*
* @param str the string containing characters to write.
* @param offset the start position in {@code str} for retrieving characters.
* @param count the maximum number of characters to write.
* @throws IOException if this writer has already been closed or another I/O error occurs.
* @throws IndexOutOfBoundsException if {@code offset < 0} or {@code count < 0}, or if {@code
* offset + count} is bigger than the length of {@code str}.
*/
@Override
public void write(String str, int offset, int count) throws IOException {
synchronized (lock) {
// avoid int overflow
// BEGIN android-changed
// Exception priorities (in case of multiple errors) differ from RI,
// but are spec-compliant.
// made implicit null check explicit, used (offset | count) < 0
// instead of (offset < 0) || (count < 0) to safe one operation
if (str == null) {
throw new NullPointerException(Msg.getString("K0047")); // $NON-NLS-1$
}
if ((offset | count) < 0 || offset > str.length() - count) {
throw new StringIndexOutOfBoundsException(Msg.getString("K002f")); // $NON-NLS-1$
}
// END android-changed
checkStatus();
CharBuffer chars = CharBuffer.wrap(str, offset, count + offset);
convert(chars);
}
}
private void port() throws IOException {
write(
"PORT " //$NON-NLS-1$
+ controlSocket.getLocalAddress().getHostAddress().replace('.', ',')
+ ','
+ (dataPort >> 8)
+ ','
+ (dataPort & 255)
+ "\r\n"); //$NON-NLS-1$
if (getReply() != FTP_OK) {
throw new IOException(Msg.getString("K0099")); // $NON-NLS-1$
}
}
private void getFile() throws IOException {
int reply;
String file = url.getFile();
write("RETR " + file + "\r\n"); // $NON-NLS-1$ //$NON-NLS-2$
reply = getReply();
if (reply == FTP_NOTFOUND && file.length() > 0 && file.charAt(0) == '/') {
write("RETR " + file.substring(1) + "\r\n"); // $NON-NLS-1$ //$NON-NLS-2$
reply = getReply();
}
if (!(reply == FTP_OPENDATA || reply == FTP_TRANSFEROK)) {
throw new FileNotFoundException(Msg.getString("K0096", reply)); // $NON-NLS-1$
}
}
/**
* Sets a mark position in this reader. The parameter {@code markLimit} indicates how many
* characters can be read before the mark is invalidated. Calling {@code reset()} will reposition
* the reader back to the marked position if {@code markLimit} has not been surpassed.
*
* @param markLimit the number of characters that can be read before the mark is invalidated.
* @throws IllegalArgumentException if {@code markLimit < 0}.
* @throws IOException if an error occurs while setting a mark in this reader.
* @see #markSupported()
* @see #reset()
*/
@Override
public void mark(int markLimit) throws IOException {
if (markLimit < 0) {
throw new IllegalArgumentException();
}
synchronized (lock) {
if (isClosed()) {
throw new IOException(Msg.getString("K005b")); // $NON-NLS-1$
}
this.markLimit = markLimit;
mark = pos;
}
}
/**
* Reads a single character from this reader and returns it with the two higher-order bytes set to
* 0. If possible, BufferedReader returns a character from the buffer. If there are no characters
* available in the buffer, it fills the buffer and then returns a character. It returns -1 if
* there are no more characters in the source reader.
*
* @return the character read or -1 if the end of the source reader has been reached.
* @throws IOException if this reader is closed or some other I/O error occurs.
*/
@Override
public int read() throws IOException {
synchronized (lock) {
if (isClosed()) {
throw new IOException(Msg.getString("K005b")); // $NON-NLS-1$
}
/* Are there buffered characters available? */
if (pos < end || fillBuf() != -1) {
return buf[pos++];
}
return -1;
}
}
@Override
public synchronized void close() throws IOException {
if (closed) {
return;
}
closed = true;
if (writeToSocket) {
if (limit > 0) {
throw new IOException(Msg.getString("K00a4")); // $NON-NLS-1$
}
sendCache(closed);
}
disconnect(false);
}