com.caucho.vfs
Class StreamFilter
java.lang.Object
|
+--com.caucho.vfs.StreamImpl
|
+--com.caucho.vfs.StreamFilter
- public class StreamFilter
- extends StreamImpl
Method Summary |
boolean |
canRead()
Returns true if this is a read stream. |
boolean |
canWrite()
Returns true if this is a writable stream. |
void |
close()
Closes the stream. |
void |
flush()
Flushes the write output. |
int |
getAvailable()
Returns the number of bytes available without blocking. |
void |
init(StreamImpl next)
|
int |
read(byte[] buffer,
int offset,
int length)
Reads the next chunk from the stream. |
void |
write(byte[] buffer,
int offset,
int length,
boolean atEnd)
Writes a buffer to the underlying stream. |
Methods inherited from class com.caucho.vfs.StreamImpl |
clearWrite, getAttribute, getAttributeNames, getFlushOnNewline, getNewline, getPath, getReadPosition, hasSkip, removeAttribute, setAttribute, setPath, skip |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
next
protected StreamImpl next
StreamFilter
public StreamFilter()
init
public void init(StreamImpl next)
canRead
public boolean canRead()
- Description copied from class:
StreamImpl
- Returns true if this is a read stream.
- Overrides:
canRead
in class StreamImpl
read
public int read(byte[] buffer,
int offset,
int length)
throws java.io.IOException
- Description copied from class:
StreamImpl
- Reads the next chunk from the stream.
- Overrides:
read
in class StreamImpl
- Following copied from class:
com.caucho.vfs.StreamImpl
- Parameters:
buffer
- byte array receiving the data.offset
- starting offset into the array.length
- number of bytes to read.- Returns:
- the number of bytes read or -1 on end of file.
getAvailable
public int getAvailable()
throws java.io.IOException
- Description copied from class:
StreamImpl
- Returns the number of bytes available without blocking. Depending on
the stream, this may return less than the actual bytes, but will always
return a number > 0 if there is any data available.
- Overrides:
getAvailable
in class StreamImpl
canWrite
public boolean canWrite()
- Description copied from class:
StreamImpl
- Returns true if this is a writable stream.
- Overrides:
canWrite
in class StreamImpl
write
public void write(byte[] buffer,
int offset,
int length,
boolean atEnd)
throws java.io.IOException
- Description copied from class:
StreamImpl
- Writes a buffer to the underlying stream.
- Overrides:
write
in class StreamImpl
- Following copied from class:
com.caucho.vfs.StreamImpl
- Parameters:
buffer
- the byte array to write.offset
- the offset into the byte array.length
- the number of bytes to write.isEnd
- true when the write is flushing a close.
flush
public void flush()
throws java.io.IOException
- Description copied from class:
StreamImpl
- Flushes the write output.
- Overrides:
flush
in class StreamImpl
close
public void close()
throws java.io.IOException
- Description copied from class:
StreamImpl
- Closes the stream.
- Overrides:
close
in class StreamImpl