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ObjectImageInputStreamImpl
FilterImageInputStream
InflaterImageInputStream
GZIPImageInputStream
public class GZIPImageInputStream
This class implements a stream filter for reading compressed data in the GZIP format.
Field Summary | |
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protected CRC32 |
crc
CRC-32 for uncompressed data. |
protected boolean |
eos
Indicates end of input stream. |
static int |
GZIP_MAGIC
GZIP header magic number. |
Fields inherited from class InflaterImageInputStream |
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buf, inf, len, singleByteBuf, usesDefaultInflater |
Fields inherited from class FilterImageInputStream |
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iis |
Fields inherited from class ImageInputStreamImpl |
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bitOffset, byteOrder, flushedPos, streamPos |
Constructor Summary | |
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GZIPImageInputStream(ImageInputStream iis)
Creates a new input stream with the specified buffer size. |
Method Summary | |
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void |
close()
Closes this input stream and releases any system resources associated with the stream. |
int |
read(byte[] buf,
int off,
int len)
Reads uncompressed data into an array of bytes. |
Methods inherited from class InflaterImageInputStream |
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fill, mark, read, reset, seek, skipBytes, skipBytes |
Methods inherited from class FilterImageInputStream |
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getByteOrder, isCached, isCachedFile, isCachedMemory, setBitOffset, setByteOrder |
Methods inherited from class ImageInputStreamImpl |
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checkClosed, finalize, flush, flushBefore, getBitOffset, getFlushedPosition, getStreamPosition, length, read, readBit, readBits, readBoolean, readByte, readBytes, readChar, readDouble, readFloat, readFully, readFully, readFully, readFully, readFully, readFully, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedInt, readUnsignedShort, readUTF |
Methods inherited from class Object |
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clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface ImageInputStream |
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flush, flushBefore, getBitOffset, getFlushedPosition, getStreamPosition, length, read, readBit, readBits, readBoolean, readByte, readBytes, readChar, readDouble, readFloat, readFully, readFully, readFully, readFully, readFully, readFully, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedInt, readUnsignedShort, readUTF |
Field Detail |
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public static final int GZIP_MAGIC
protected CRC32 crc
protected boolean eos
Constructor Detail |
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public GZIPImageInputStream(ImageInputStream iis) throws IOException
in
- the input streamsize
- the input buffer size
IOException
- if an I/O error has occurred
IllegalArgumentException
- if size is <= 0Method Detail |
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public int read(byte[] buf, int off, int len) throws IOException
read
in interface ImageInputStream
read
in class InflaterImageInputStream
buf
- the buffer into which the data is readoff
- the start offset of the datalen
- the maximum number of bytes read
IOException
- if an I/O error has occurred or the compressed input
data is corruptpublic void close() throws IOException
close
in interface ImageInputStream
close
in class InflaterImageInputStream
IOException
- if an I/O error has occurred
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