Package org.jboss.vfs.util
Class LazyInputStream
- java.lang.Object
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- java.io.InputStream
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- org.jboss.vfs.util.LazyInputStream
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- All Implemented Interfaces:
java.io.Closeable
,java.lang.AutoCloseable
public class LazyInputStream extends java.io.InputStream
Lazy input stream. Delaying opening stream from underlying virtual file as long as possible. Won't be opened if not used at all. Synchronization is very simplistic, as it's highly unlikely there will be a lot of concurrent requests.- Author:
- Ales Justin
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Constructor Summary
Constructors Constructor Description LazyInputStream(VirtualFile file)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
available()
void
close()
void
mark(int readlimit)
boolean
markSupported()
protected java.io.InputStream
openStream()
Open stream.int
read()
int
read(byte[] b)
int
read(byte[] b, int off, int len)
void
reset()
long
skip(long n)
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Constructor Detail
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LazyInputStream
public LazyInputStream(VirtualFile file)
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Method Detail
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openStream
protected java.io.InputStream openStream() throws java.io.IOException
Open stream.- Returns:
- file's stream
- Throws:
java.io.IOException
- for any IO error
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read
public int read() throws java.io.IOException
- Specified by:
read
in classjava.io.InputStream
- Throws:
java.io.IOException
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read
public int read(byte[] b) throws java.io.IOException
- Overrides:
read
in classjava.io.InputStream
- Throws:
java.io.IOException
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read
public int read(byte[] b, int off, int len) throws java.io.IOException
- Overrides:
read
in classjava.io.InputStream
- Throws:
java.io.IOException
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skip
public long skip(long n) throws java.io.IOException
- Overrides:
skip
in classjava.io.InputStream
- Throws:
java.io.IOException
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available
public int available() throws java.io.IOException
- Overrides:
available
in classjava.io.InputStream
- Throws:
java.io.IOException
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close
public void close() throws java.io.IOException
- Specified by:
close
in interfacejava.lang.AutoCloseable
- Specified by:
close
in interfacejava.io.Closeable
- Overrides:
close
in classjava.io.InputStream
- Throws:
java.io.IOException
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mark
public void mark(int readlimit)
- Overrides:
mark
in classjava.io.InputStream
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reset
public void reset() throws java.io.IOException
- Overrides:
reset
in classjava.io.InputStream
- Throws:
java.io.IOException
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markSupported
public boolean markSupported()
- Overrides:
markSupported
in classjava.io.InputStream
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