Package org.eclipse.birt.core.archive
Class RAFileOutputStream
java.lang.Object
java.io.OutputStream
org.eclipse.birt.core.archive.RAOutputStream
org.eclipse.birt.core.archive.RAFileOutputStream
- All Implemented Interfaces:
Closeable
,Flushable
,AutoCloseable
This class is to be used by engine host (viewer), but not engine.
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Field Summary
Fields -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionlong
long
long
length()
void
seek
(long localPos) Same behavior as the seek in RandomAccessFile.void
write
(byte[] b) Writesb.length
bytes from the specified byte array to this output stream.void
write
(byte[] b, int off, int len) Writeslen
bytes from the specified byte array starting at offsetoff
to this output stream.void
write
(int b) The same behavior as OutputStream.write().void
writeInt
(int v) void
writeLong
(long v) Methods inherited from class java.io.OutputStream
close, flush, nullOutputStream
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Field Details
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logger
the logger
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Constructor Details
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RAFileOutputStream
- Parameters:
parentFile
- - underlying RandomAccess filestartPos
- - the (global) position of the first character in parentFileendPos
- - the (global) position of EOF mark (not a valid character in the file)
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Method Details
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write
The same behavior as OutputStream.write().
Writes the specified byte to this output stream. The general contract forwrite
is that one byte is written to the output stream. The byte to be written is the eight low-order bits of the argumentb
. The 24 high-order bits ofb
are ignored.Subclasses of
OutputStream
must provide an implementation for this method.- Specified by:
write
in classOutputStream
- Parameters:
b
- thebyte
.- Throws:
IOException
- if an I/O error occurs. In particular, anIOException
may be thrown if the output stream has been closed.
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write
Writesb.length
bytes from the specified byte array to this output stream. The general contract forwrite(b)
is that it should have exactly the same effect as the callwrite(b, 0, b.length)
.- Overrides:
write
in classOutputStream
- Parameters:
b
- the data.- Throws:
IOException
- if an I/O error occurs.- See Also:
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write
Writeslen
bytes from the specified byte array starting at offsetoff
to this output stream. The general contract forwrite(b, off, len)
is that some of the bytes in the arrayb
are written to the output stream in order; elementb[off]
is the first byte written andb[off+len-1]
is the last byte written by this operation.- Overrides:
write
in classOutputStream
- Parameters:
b
- the data.off
- the start offset in the data.len
- the number of bytes to write.- Throws:
IOException
- if an I/O error occurs.
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writeInt
- Specified by:
writeInt
in classRAOutputStream
- Throws:
IOException
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writeLong
- Specified by:
writeLong
in classRAOutputStream
- Throws:
IOException
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seek
Same behavior as the seek in RandomAccessFile.
Sets the file-pointer offset, measured from the beginning of this file, at which the next read or write occurs. The offset may be set beyond the end of the file. Setting the offset beyond the end of the file does not change the file length. The file length will change only by writing after the offset has been set beyond the end of the file.- Specified by:
seek
in classRAOutputStream
- Parameters:
localPos
- - the new local postion in the stream, measured in bytes from the beginning of the stream- Throws:
IOException
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getOffset
- Specified by:
getOffset
in classRAOutputStream
- Throws:
IOException
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getStreamLength
public long getStreamLength()- Returns:
- the length of the stream
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length
- Specified by:
length
in classRAOutputStream
- Throws:
IOException
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