/**
* Need to check conversion early on. There's some danger than old contents of a file are set to
* empty, if an exception occurs.
*
* @param allText
* @param encoding
* @param encodingRule
* @throws java.io.UnsupportedEncodingException
* @throws MalformedOutputExceptionWithDetail
* @deprecated - we need to find "cheaper" way to to this functionality so likely to go away in
* future
*/
private void checkConversion(EncodingMemento memento, EncodingRule encodingRule)
throws IOException {
String javaEncoding = memento.getJavaCharsetName();
String detectedEncoding = memento.getDetectedCharsetName();
Charset charset = Charset.forName(javaEncoding);
CharsetEncoder charsetEncoder = charset.newEncoder();
charsetEncoder.onMalformedInput(CodingErrorAction.REPORT);
charsetEncoder.onUnmappableCharacter(CodingErrorAction.REPORT);
Reader reader = getResettableReader();
reader.reset();
int currentChar = reader.read();
int currentPos = 1;
try {
while (currentChar != -1) {
// note: this can probably be made more
// efficient later to
// check buffer by buffer, instead of
// character by character.
try {
boolean canConvert = charsetEncoder.canEncode((char) currentChar);
if (!canConvert) {
if (encodingRule == EncodingRule.IGNORE_CONVERSION_ERROR) {
// if we're told to ignore the
// encoding conversion
// error,
// notice we still want to detect
// and log it. We simply
// don't throw the exception, and
// we do continue with
// the
// save.
Logger.log(Logger.ERROR, "Encoding Conversion Error during save"); // $NON-NLS-1$
} else {
throw new MalformedOutputExceptionWithDetail(
javaEncoding, detectedEncoding, currentPos);
}
}
currentChar = reader.read();
currentPos++;
}
// IBM's JRE seems to throw NPE when DBCS char is given to
// SBCS charsetEncoder
catch (NullPointerException e) {
throw new CharConversionErrorWithDetail(javaEncoding); // $NON-NLS-1$
}
}
// if we get all the way through loop without throwing exception,
// then there must
// be an error not detectable when going character by character.
throw new CharConversionErrorWithDetail(javaEncoding); // $NON-NLS-1$
} finally {
reader.reset();
}
}
/**
* Converts the provided String to bytes using the UTF-8 encoding. If <code>replace</code> is
* true, then malformed input is replaced with the substitution character, which is U+FFFD.
* Otherwise the method throws a MalformedInputException.
*
* @return ByteBuffer: bytes stores at ByteBuffer.array() and length is ByteBuffer.limit()
*/
public static ByteBuffer encode(String string, boolean replace) throws CharacterCodingException {
CharsetEncoder encoder = ENCODER_FACTORY.get();
if (replace) {
encoder.onMalformedInput(CodingErrorAction.REPLACE);
encoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
}
ByteBuffer bytes = encoder.encode(CharBuffer.wrap(string.toCharArray()));
if (replace) {
encoder.onMalformedInput(CodingErrorAction.REPORT);
encoder.onUnmappableCharacter(CodingErrorAction.REPORT);
}
return bytes;
}
static byte[] encode(Charset cs, char[] ca, int off, int len) {
CharsetEncoder ce = cs.newEncoder();
int en = scale(len, ce.maxBytesPerChar());
byte[] ba = new byte[en];
if (len == 0) return ba;
boolean isTrusted = false;
if (System.getSecurityManager() != null) {
if (!(isTrusted = (cs.getClass().getClassLoader0() == null))) {
ca = Arrays.copyOfRange(ca, off, off + len);
off = 0;
}
}
ce.onMalformedInput(CodingErrorAction.REPLACE)
.onUnmappableCharacter(CodingErrorAction.REPLACE)
.reset();
if (ce instanceof ArrayEncoder) {
int blen = ((ArrayEncoder) ce).encode(ca, off, len, ba);
return safeTrim(ba, blen, cs, isTrusted);
} else {
ByteBuffer bb = ByteBuffer.wrap(ba);
CharBuffer cb = CharBuffer.wrap(ca, off, len);
try {
CoderResult cr = ce.encode(cb, bb, true);
if (!cr.isUnderflow()) cr.throwException();
cr = ce.flush(bb);
if (!cr.isUnderflow()) cr.throwException();
} catch (CharacterCodingException x) {
throw new Error(x);
}
return safeTrim(ba, bb.position(), cs, isTrusted);
}
}
/**
* Constructs a new OutputStreamWriter using {@code out} as the target stream to write converted
* characters to and {@code cs} as the character encoding.
*
* @param out the target stream to write converted bytes to.
* @param cs the {@code Charset} that specifies the character encoding.
*/
public OutputStreamWriter(OutputStream out, Charset cs) {
super(out);
this.out = out;
encoder = cs.newEncoder();
encoder.onMalformedInput(CodingErrorAction.REPLACE);
encoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
}
/**
* Constructs a new OutputStreamWriter using {@code out} as the target stream to write converted
* characters to. The default character encoding is used.
*
* @param out the non-null target stream to write converted bytes to.
*/
public OutputStreamWriter(OutputStream out) {
super(out);
this.out = out;
String encoding =
AccessController.doPrivileged(
new PriviAction<String>("file.encoding", "ISO8859_1")); // $NON-NLS-1$ //$NON-NLS-2$
encoder = Charset.forName(encoding).newEncoder();
encoder.onMalformedInput(CodingErrorAction.REPLACE);
encoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
}
public static CharsetEncoder getCharsetEncoder(String charsetName) {
Charset charset = Charset.forName(charsetName);
CharsetEncoder charsetEncoder = charset.newEncoder();
charsetEncoder.onMalformedInput(CodingErrorAction.REPLACE);
charsetEncoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
return charsetEncoder;
}
/**
* Write String into byte array
*
* <p>It will remove a trailing null terminator if exists if the option
* RemoveTrailingTerminatorOnWrite has been set.
*
* @return the data as a byte array in format to write to file
*/
public byte[] writeByteArray() {
byte[] data;
// Try and write to buffer using the CharSet defined by getTextEncodingCharSet()
String charSetName = getTextEncodingCharSet();
try {
stripTrailingNull();
// Special Handling because there is no UTF16 BOM LE charset
String stringValue = (String) value;
String actualCharSet = null;
if (charSetName.equals(TextEncoding.CHARSET_UTF_16)) {
if (TagOptionSingleton.getInstance().isEncodeUTF16BomAsLittleEndian()) {
actualCharSet = TextEncoding.CHARSET_UTF_16_LE_ENCODING_FORMAT;
} else {
actualCharSet = TextEncoding.CHARSET_UTF_16_BE_ENCODING_FORMAT;
}
}
// Ensure large enough for any encoding
ByteBuffer outputBuffer = ByteBuffer.allocate((stringValue.length() + 3) * 3);
// Ensure each string (if multiple values) is written with BOM by writing separately
List<String> values = splitByNullSeperator(stringValue);
checkTrailingNull(values, stringValue);
// For each value
for (int i = 0; i < values.size(); i++) {
String next = values.get(i);
if (actualCharSet != null) {
if (actualCharSet.equals(TextEncoding.CHARSET_UTF_16_LE_ENCODING_FORMAT)) {
outputBuffer.put(writeStringUTF16LEBOM(next, i, values.size()));
} else if (actualCharSet.equals(TextEncoding.CHARSET_UTF_16_BE_ENCODING_FORMAT)) {
outputBuffer.put(writeStringUTF16BEBOM(next, i, values.size()));
}
} else {
CharsetEncoder charsetEncoder = Charset.forName(charSetName).newEncoder();
charsetEncoder.onMalformedInput(CodingErrorAction.IGNORE);
charsetEncoder.onUnmappableCharacter(CodingErrorAction.IGNORE);
outputBuffer.put(writeString(charsetEncoder, next, i, values.size()));
}
}
outputBuffer.flip();
data = new byte[outputBuffer.limit()];
outputBuffer.rewind();
outputBuffer.get(data, 0, outputBuffer.limit());
setSize(data.length);
}
// https://bitbucket.org/ijabz/jaudiotagger/issue/1/encoding-metadata-to-utf-16-can-fail-if
catch (CharacterCodingException ce) {
logger.severe(ce.getMessage() + ":" + charSetName + ":" + value);
throw new RuntimeException(ce);
}
return data;
}
@JRubyMethod
public IRubyObject initialize(IRubyObject arg1, IRubyObject arg2, Block unusedBlock) {
Ruby runtime = getRuntime();
if (!arg1.respondsTo("to_str")) {
throw runtime.newTypeError("can't convert " + arg1.getMetaClass() + " into String");
}
if (!arg2.respondsTo("to_str")) {
throw runtime.newTypeError("can't convert " + arg2.getMetaClass() + " into String");
}
String to = arg1.convertToString().toString();
String from = arg2.convertToString().toString();
try {
fromEncoding = Charset.forName(getCharset(from)).newDecoder();
toEncoding = Charset.forName(getCharset(to)).newEncoder();
count = 0;
if (isIgnore(to)) {
fromEncoding.onUnmappableCharacter(CodingErrorAction.IGNORE);
fromEncoding.onMalformedInput(CodingErrorAction.IGNORE);
toEncoding.onUnmappableCharacter(CodingErrorAction.IGNORE);
toEncoding.onMalformedInput(CodingErrorAction.IGNORE);
} else {
fromEncoding.onUnmappableCharacter(CodingErrorAction.REPORT);
fromEncoding.onMalformedInput(CodingErrorAction.REPORT);
toEncoding.onUnmappableCharacter(CodingErrorAction.REPORT);
toEncoding.onMalformedInput(CodingErrorAction.REPORT);
}
} catch (IllegalCharsetNameException e) {
throw runtime.newInvalidEncoding("invalid encoding");
} catch (UnsupportedCharsetException e) {
throw runtime.newInvalidEncoding("invalid encoding");
} catch (Exception e) {
throw runtime.newSystemCallError(e.toString());
}
return this;
}
/**
* Constructs a new OutputStreamWriter using {@code out} as the target stream to write converted
* characters to and {@code enc} as the character encoding. If the encoding cannot be found, an
* UnsupportedEncodingException error is thrown.
*
* @param out the target stream to write converted bytes to.
* @param enc the string describing the desired character encoding.
* @throws NullPointerException if {@code enc} is {@code null}.
* @throws UnsupportedEncodingException if the encoding specified by {@code enc} cannot be found.
*/
public OutputStreamWriter(OutputStream out, final String enc)
throws UnsupportedEncodingException {
super(out);
if (enc == null) {
throw new NullPointerException();
}
this.out = out;
try {
encoder = Charset.forName(enc).newEncoder();
} catch (Exception e) {
throw new UnsupportedEncodingException(enc);
}
encoder.onMalformedInput(CodingErrorAction.REPLACE);
encoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
}
/**
* Write String in UTF-BEBOM format
*
* <p>When this is called multiple times, all but the last value has a trailing null
*
* @param next
* @param i
* @param noOfValues
* @return
* @throws CharacterCodingException
*/
private ByteBuffer writeStringUTF16BEBOM(String next, int i, int noOfValues)
throws CharacterCodingException {
CharsetEncoder encoder =
Charset.forName(TextEncoding.CHARSET_UTF_16_BE_ENCODING_FORMAT).newEncoder();
encoder.onMalformedInput(CodingErrorAction.IGNORE);
encoder.onUnmappableCharacter(CodingErrorAction.IGNORE);
ByteBuffer bb = null;
// Add BOM
if ((i + 1) == noOfValues) {
bb = encoder.encode(CharBuffer.wrap('\ufeff' + next));
} else {
bb = encoder.encode(CharBuffer.wrap('\ufeff' + next + '\0'));
}
bb.rewind();
return bb;
}
/**
* Creates ReaderInputStream from a given Reader type object with a specifed encoding.
*
* @param reader java.io.Reader object to be read data from.
* @param encoding an encoding of the created stream.
*/
public ReaderInputStream(Reader reader, String encoding) {
this.reader = reader;
if (encoding == null) {
if (reader instanceof InputStreamReader) {
encoding = ((InputStreamReader) reader).getEncoding();
} else {
encoding = Charset.defaultCharset().name();
}
} else if (!Charset.isSupported(encoding)) {
throw new IllegalArgumentException(encoding + " is not supported");
}
encoder = Charset.forName(encoding).newEncoder();
encoder.onMalformedInput(CodingErrorAction.REPLACE);
encoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
try {
fillByteBuffer(reader);
} catch (IOException ex) {
throw new RuntimeException(ex);
}
}
public TermSession(final boolean exitOnEOF) {
mWriteCharBuffer = CharBuffer.allocate(2);
mWriteByteBuffer = ByteBuffer.allocate(4);
mUTF8Encoder = Charset.forName("UTF-8").newEncoder();
mUTF8Encoder.onMalformedInput(CodingErrorAction.REPLACE);
mUTF8Encoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
mReceiveBuffer = new byte[4 * 1024];
mByteQueue = new ByteQueue(4 * 1024);
mReaderThread =
new Thread() {
private byte[] mBuffer = new byte[4096];
@Override
public void run() {
try {
while (true) {
int read = mTermIn.read(mBuffer);
if (read == -1) {
// EOF -- process exited
break;
}
int offset = 0;
while (read > 0) {
int written = mByteQueue.write(mBuffer, offset, read);
offset += written;
read -= written;
mMsgHandler.sendMessage(mMsgHandler.obtainMessage(NEW_INPUT));
}
}
} catch (IOException e) {
} catch (InterruptedException e) {
}
if (exitOnEOF) mMsgHandler.sendMessage(mMsgHandler.obtainMessage(EOF));
}
};
mReaderThread.setName("TermSession input reader");
mWriteQueue = new ByteQueue(4096);
mWriterThread =
new Thread() {
private byte[] mBuffer = new byte[4096];
@Override
public void run() {
Looper.prepare();
mWriterHandler =
new Handler() {
@Override
public void handleMessage(Message msg) {
if (msg.what == NEW_OUTPUT) {
writeToOutput();
} else if (msg.what == FINISH) {
Looper.myLooper().quit();
}
}
};
// Drain anything in the queue from before we started
writeToOutput();
Looper.loop();
}
private void writeToOutput() {
ByteQueue writeQueue = mWriteQueue;
byte[] buffer = mBuffer;
OutputStream termOut = mTermOut;
int bytesAvailable = writeQueue.getBytesAvailable();
int bytesToWrite = Math.min(bytesAvailable, buffer.length);
if (bytesToWrite == 0) {
return;
}
try {
writeQueue.read(buffer, 0, bytesToWrite);
termOut.write(buffer, 0, bytesToWrite);
termOut.flush();
} catch (IOException e) {
// Ignore exception
// We don't really care if the receiver isn't listening.
// We just make a best effort to answer the query.
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
};
mWriterThread.setName("TermSession output writer");
}
@Override
protected void doSaveDocument(
IProgressMonitor monitor, Object element, IDocument document, boolean overwrite)
throws CoreException {
try {
IStorage storage = EditorUtils.getStorageFromInput(element);
File localFile = null;
if (storage == null) {
localFile = EditorUtils.getLocalFileFromInput(element);
if (localFile == null) {
throw new DBException("Can't obtain file from editor input");
}
}
String encoding =
(storage instanceof IEncodedStorage
? ((IEncodedStorage) storage).getCharset()
: GeneralUtils.DEFAULT_FILE_CHARSET_NAME);
Charset charset = Charset.forName(encoding);
CharsetEncoder encoder = charset.newEncoder();
encoder.onMalformedInput(CodingErrorAction.REPLACE);
encoder.onUnmappableCharacter(CodingErrorAction.REPORT);
byte[] bytes;
ByteBuffer byteBuffer = encoder.encode(CharBuffer.wrap(document.get()));
if (byteBuffer.hasArray()) {
bytes = byteBuffer.array();
} else {
bytes = new byte[byteBuffer.limit()];
byteBuffer.get(bytes);
}
InputStream stream = new ByteArrayInputStream(bytes, 0, byteBuffer.limit());
if (storage instanceof IFile) {
IFile file = (IFile) storage;
if (file.exists()) {
// inform about the upcoming content change
fireElementStateChanging(element);
try {
file.setContents(stream, true, true, monitor);
} catch (CoreException x) {
// inform about failure
fireElementStateChangeFailed(element);
throw x;
} catch (RuntimeException x) {
// inform about failure
fireElementStateChangeFailed(element);
throw x;
}
} else {
try {
monitor.beginTask("Save file '" + file.getName() + "'", 2000);
// ContainerCreator creator = new ContainerCreator(file.getWorkspace(),
// file.getParent().getFullPath());
// creator.createContainer(new SubProgressMonitor(monitor, 1000));
file.create(stream, false, monitor);
} finally {
monitor.done();
}
}
} else if (storage instanceof IPersistentStorage) {
monitor.beginTask("Save document", 1);
((IPersistentStorage) storage).setContents(monitor, stream);
} else if (localFile != null) {
try (OutputStream os = new FileOutputStream(localFile)) {
IOUtils.copyStream(stream, os);
}
} else {
throw new DBException("Storage [" + storage + "] doesn't support save");
}
} catch (Exception e) {
if (e instanceof CoreException) {
throw (CoreException) e;
} else {
throw new CoreException(GeneralUtils.makeExceptionStatus(e));
}
}
}
private void dump(OutputStream outputStream, EncodingRule encodingRule, boolean use3ByteBOMifUTF8)
throws CoreException, IOException {
getCurrentEncodingMemento();
String javaEncodingName = null;
if (encodingRule == EncodingRule.CONTENT_BASED) {
if (fCurrentEncodingMemento.isValid()) {
javaEncodingName = fCurrentEncodingMemento.getJavaCharsetName();
} else {
throw new UnsupportedCharsetExceptionWithDetail(fCurrentEncodingMemento);
}
} else if (encodingRule == EncodingRule.IGNORE_CONVERSION_ERROR)
javaEncodingName = fCurrentEncodingMemento.getJavaCharsetName();
else if (encodingRule == EncodingRule.FORCE_DEFAULT)
javaEncodingName = fCurrentEncodingMemento.getAppropriateDefault();
// write appropriate "header" unicode BOM bytes
// Note: Java seems to write appropriate header for
// UTF-16, but not
// UTF-8 nor UTF-16BE. This
// may vary by JRE version, so need to test well.
// Note: javaEncodingName can be null in invalid
// cases, so we no hard
// to skip whole check if that's the case.
if (javaEncodingName != null) {
if ((javaEncodingName.equals(UTF_8_CHARSET_NAME) && use3ByteBOMifUTF8)
|| (javaEncodingName.equals(UTF_8_CHARSET_NAME)
&& fCurrentEncodingMemento.isUTF83ByteBOMUsed())) {
outputStream.write(UTF3BYTEBOM);
} else if (javaEncodingName.equals(UTF_16LE_CHARSET_NAME)) {
outputStream.write(UTF16LEBOM);
} else if (javaEncodingName.equals(UTF_16BE_CHARSET_NAME)) {
outputStream.write(UTF16BEBOM);
}
}
// TODO add back in line delimiter handling the
// "right" way (updating
// markers, not requiring string, etc. .. may need
// to move to document
// level)
// allTextBuffer =
// handleLineDelimiter(allTextBuffer, document);
Reader reader = getResettableReader();
// be sure to test large "readers" ... we'll need
// to make sure they all
// can reset to initial position (StringReader,
// CharArrayReader, and
// DocumentReader should all work ok).
reader.reset();
// There must be cleaner logic somehow, but the
// idea is that
// javaEncodingName can be null
// if original detected encoding is not valid (and
// if FORCE_DEFAULT was
// not specified). Hence, we WANT the first
// Charset.forName to
// throw appropriate exception.
Charset charset = null;
// this call checks "override" properties file
javaEncodingName = CodedIO.getAppropriateJavaCharset(javaEncodingName);
if (javaEncodingName == null) {
charset = Charset.forName(fCurrentEncodingMemento.getDetectedCharsetName());
} else {
charset = Charset.forName(javaEncodingName);
}
CharsetEncoder charsetEncoder = charset.newEncoder();
if (!(encodingRule == EncodingRule.IGNORE_CONVERSION_ERROR)) {
charsetEncoder.onMalformedInput(CodingErrorAction.REPORT);
charsetEncoder.onUnmappableCharacter(CodingErrorAction.REPORT);
} else {
charsetEncoder.onMalformedInput(CodingErrorAction.REPLACE);
charsetEncoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
}
OutputStreamWriter outputStreamWriter = new OutputStreamWriter(outputStream, charsetEncoder);
// TODO: this may no longer be needed (and is at
// least wrong spot for
// it).
// if (checkConversion && (!(encodingRule ==
// EncodingRule.IGNORE_CONVERSION_ERROR))) {
// checkConversion(fCurrentEncodingMemento,
// encodingRule);
// }
char[] charbuf = new char[CodedIO.MAX_BUF_SIZE];
int nRead = 0;
try {
while (nRead != -1) {
nRead = reader.read(charbuf, 0, MAX_BUF_SIZE);
if (nRead > 0) {
outputStreamWriter.flush();
outputStreamWriter.write(charbuf, 0, nRead);
}
}
} catch (UnmappableCharacterException e) {
checkConversion(fCurrentEncodingMemento, encodingRule);
} finally {
// since we don't own the original output stream, we
// won't close it ours.
// the caller who passed it to us must close original one
// when appropriate.
// (but we do flush to be sure all up-to-date)
outputStreamWriter.flush();
}
}
