Class DeflateCompressorInputStream
- java.lang.Object
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- java.io.InputStream
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- org.apache.commons.compress.compressors.CompressorInputStream
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- org.apache.commons.compress.compressors.deflate.DeflateCompressorInputStream
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- All Implemented Interfaces:
java.io.Closeable
,java.lang.AutoCloseable
,InputStreamStatistics
public class DeflateCompressorInputStream extends CompressorInputStream implements InputStreamStatistics
Deflate decompressor.- Since:
- 1.9
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Field Summary
Fields Modifier and Type Field Description private CountingInputStream
countingStream
private java.io.InputStream
in
private java.util.zip.Inflater
inflater
private static int
MAGIC_1
private static int
MAGIC_2a
private static int
MAGIC_2b
private static int
MAGIC_2c
private static int
MAGIC_2d
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Constructor Summary
Constructors Constructor Description DeflateCompressorInputStream(java.io.InputStream inputStream)
Creates a new input stream that decompresses Deflate-compressed data from the specified input stream.DeflateCompressorInputStream(java.io.InputStream inputStream, DeflateParameters parameters)
Creates a new input stream that decompresses Deflate-compressed data from the specified input stream.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description int
available()
void
close()
long
getCompressedCount()
Gets the amount of raw or compressed bytes read by the stream.static boolean
matches(byte[] signature, int length)
Checks if the signature matches what is expected for a zlib / deflated file with the zlib header.int
read()
int
read(byte[] buf, int off, int len)
long
skip(long n)
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Methods inherited from class org.apache.commons.compress.compressors.CompressorInputStream
count, count, getBytesRead, getCount, getUncompressedCount, pushedBackBytes
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.commons.compress.utils.InputStreamStatistics
getUncompressedCount
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Field Detail
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MAGIC_1
private static final int MAGIC_1
- See Also:
- Constant Field Values
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MAGIC_2a
private static final int MAGIC_2a
- See Also:
- Constant Field Values
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MAGIC_2b
private static final int MAGIC_2b
- See Also:
- Constant Field Values
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MAGIC_2c
private static final int MAGIC_2c
- See Also:
- Constant Field Values
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MAGIC_2d
private static final int MAGIC_2d
- See Also:
- Constant Field Values
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countingStream
private final CountingInputStream countingStream
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in
private final java.io.InputStream in
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inflater
private final java.util.zip.Inflater inflater
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Constructor Detail
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DeflateCompressorInputStream
public DeflateCompressorInputStream(java.io.InputStream inputStream)
Creates a new input stream that decompresses Deflate-compressed data from the specified input stream.- Parameters:
inputStream
- where to read the compressed data
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DeflateCompressorInputStream
public DeflateCompressorInputStream(java.io.InputStream inputStream, DeflateParameters parameters)
Creates a new input stream that decompresses Deflate-compressed data from the specified input stream.- Parameters:
inputStream
- where to read the compressed dataparameters
- parameters
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Method Detail
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matches
public static boolean matches(byte[] signature, int length)
Checks if the signature matches what is expected for a zlib / deflated file with the zlib header.- Parameters:
signature
- the bytes to checklength
- the number of bytes to check- Returns:
- true, if this stream is zlib / deflate compressed with a header stream, false otherwise
- Since:
- 1.10
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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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getCompressedCount
public long getCompressedCount()
Description copied from interface:InputStreamStatistics
Gets the amount of raw or compressed bytes read by the stream.- Specified by:
getCompressedCount
in interfaceInputStreamStatistics
- Returns:
- the amount of raw or compressed bytes read by the stream.
- Since:
- 1.17
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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[] buf, 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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