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java.lang.Objectjava.io.Reader
org.apache.xerces.impl.io.UTF16Reader
public final class UTF16Reader
A UTF-16 reader. Can also be used for UCS-2 (i.e. ISO-10646-UCS-2).
Field Summary | |
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static int |
DEFAULT_BUFFER_SIZE
Default byte buffer size (4096). |
protected byte[] |
fBuffer
Byte buffer. |
protected InputStream |
fInputStream
Input stream. |
protected boolean |
fIsBigEndian
Endianness. |
Fields inherited from class java.io.Reader |
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lock |
Constructor Summary | |
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UTF16Reader(InputStream inputStream,
boolean isBigEndian)
Constructs a UTF-16 reader from the specified input stream using the default buffer size. |
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UTF16Reader(InputStream inputStream,
boolean isBigEndian,
MessageFormatter messageFormatter,
Locale locale)
Constructs a UTF-16 reader from the specified input stream using the default buffer size and the given MessageFormatter. |
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UTF16Reader(InputStream inputStream,
byte[] buffer,
boolean isBigEndian,
MessageFormatter messageFormatter,
Locale locale)
Constructs a UTF-16 reader from the specified input stream, buffer and MessageFormatter. |
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UTF16Reader(InputStream inputStream,
int size,
boolean isBigEndian,
MessageFormatter messageFormatter,
Locale locale)
Constructs a UTF-16 reader from the specified input stream and buffer size and given MessageFormatter. |
Method Summary | |
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void |
close()
Close the stream. |
void |
mark(int readAheadLimit)
Mark the present position in the stream. |
boolean |
markSupported()
Tell whether this stream supports the mark() operation. |
int |
read()
Read a single character. |
int |
read(char[] ch,
int offset,
int length)
Read characters into a portion of an array. |
boolean |
ready()
Tell whether this stream is ready to be read. |
void |
reset()
Reset the stream. |
long |
skip(long n)
Skip characters. |
Methods inherited from class java.io.Reader |
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read, read |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final int DEFAULT_BUFFER_SIZE
protected final InputStream fInputStream
protected final byte[] fBuffer
protected final boolean fIsBigEndian
Constructor Detail |
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public UTF16Reader(InputStream inputStream, boolean isBigEndian)
inputStream
- The input stream.isBigEndian
- The byte order.public UTF16Reader(InputStream inputStream, boolean isBigEndian, MessageFormatter messageFormatter, Locale locale)
inputStream
- The input stream.isBigEndian
- The byte order.public UTF16Reader(InputStream inputStream, int size, boolean isBigEndian, MessageFormatter messageFormatter, Locale locale)
inputStream
- The input stream.size
- The initial buffer size.isBigEndian
- The byte order.messageFormatter
- Given MessageFormatterlocale
- Locale to use for messagespublic UTF16Reader(InputStream inputStream, byte[] buffer, boolean isBigEndian, MessageFormatter messageFormatter, Locale locale)
inputStream
- The input stream.buffer
- The byte buffer.isBigEndian
- The byte order.messageFormatter
- Given MessageFormatterlocale
- Locale to use for messagesMethod Detail |
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public int read() throws IOException
Subclasses that intend to support efficient single-character input should override this method.
read
in class Reader
IOException
- If an I/O error occurspublic int read(char[] ch, int offset, int length) throws IOException
read
in class Reader
ch
- Destination bufferoffset
- Offset at which to start storing characterslength
- Maximum number of characters to read
IOException
- If an I/O error occurspublic long skip(long n) throws IOException
skip
in class Reader
n
- The number of characters to skip
IOException
- If an I/O error occurspublic boolean ready() throws IOException
ready
in class Reader
IOException
- If an I/O error occurspublic boolean markSupported()
markSupported
in class Reader
public void mark(int readAheadLimit) throws IOException
mark
in class Reader
readAheadLimit
- Limit on the number of characters that may be
read while still preserving the mark. After
reading this many characters, attempting to
reset the stream may fail.
IOException
- If the stream does not support mark(),
or if some other I/O error occurspublic void reset() throws IOException
reset
in class Reader
IOException
- If the stream has not been marked,
or if the mark has been invalidated,
or if the stream does not support reset(),
or if some other I/O error occurspublic void close() throws IOException
close
in interface Closeable
close
in class Reader
IOException
- If an I/O error occurs
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