gzipheader.html

用JAVA编写的,在做实验的时候留下来的,本来想删的,但是传上来,大家分享吧

<PRE>
protected int <B>length</B></PRE>
<DL>
<DD>Total length of the gzip header.
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="flg"><!-- --></A><H3>
flg</H3>
<PRE>
protected int <B>flg</B></PRE>
<DL>
<DD>The GZIP header FLG byte.
<P>
<DL>
</DL>
</DL>

<!-- ========= CONSTRUCTOR DETAIL ======== -->

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<B>Constructor Detail</B></FONT></TH>
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<A NAME="GzipHeader()"><!-- --></A><H3>
GzipHeader</H3>
<PRE>
public <B>GzipHeader</B>()</PRE>
<DL>
<DD>Shutdown constructor.
 
 Must pass an input stream.
<P>
</DL>
<HR>

<A NAME="GzipHeader(java.io.InputStream)"><!-- --></A><H3>
GzipHeader</H3>
<PRE>
public <B>GzipHeader</B>(java.io.InputStream&nbsp;in)
           throws java.io.IOException</PRE>
<DL>
<DD>Constructor.
 
 This constructor advances the stream past any gzip header found.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - InputStream to read from.
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE></DL>
</DL>

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<A NAME="readHeader(java.io.InputStream)"><!-- --></A><H3>
readHeader</H3>
<PRE>
public void <B>readHeader</B>(java.io.InputStream&nbsp;in)
                throws java.io.IOException</PRE>
<DL>
<DD>Read in gzip header.
 
 Advances the stream past the gzip header.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - InputStream.
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - Throws if does not start with GZIP Header.</DL>
</DD>
</DL>
<HR>

<A NAME="testGzipMagic(java.io.InputStream)"><!-- --></A><H3>
testGzipMagic</H3>
<PRE>
public boolean <B>testGzipMagic</B>(java.io.InputStream&nbsp;in)
                      throws java.io.IOException</PRE>
<DL>
<DD>Test gzip magic is next in the stream.
 Reads two bytes.  Caller needs to manage resetting stream.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - InputStream to read.
<DT><B>Returns:</B><DD>true if found gzip magic.  False otherwise
 or an IOException (including EOFException).
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="testGzipMagic(java.io.InputStream, java.util.zip.CRC32)"><!-- --></A><H3>
testGzipMagic</H3>
<PRE>
public boolean <B>testGzipMagic</B>(java.io.InputStream&nbsp;in,
                             java.util.zip.CRC32&nbsp;crc)
                      throws java.io.IOException</PRE>
<DL>
<DD>Test gzip magic is next in the stream.
 Reads two bytes.  Caller needs to manage resetting stream.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - InputStream to read.<DD><CODE>crc</CODE> - CRC to update.
<DT><B>Returns:</B><DD>true if found gzip magic.  False otherwise
 or an IOException (including EOFException).
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="readByte(java.io.InputStream)"><!-- --></A><H3>
readByte</H3>
<PRE>
protected int <B>readByte</B>(java.io.InputStream&nbsp;in)
                throws java.io.IOException</PRE>
<DL>
<DD>Read a byte. 
 
 We do not expect to get a -1 reading.  If we do, we throw exception.
 Update the crc as we go.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - InputStream to read.
<DT><B>Returns:</B><DD>Byte read.
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="readByte(java.io.InputStream, java.util.zip.CRC32)"><!-- --></A><H3>
readByte</H3>
<PRE>
protected int <B>readByte</B>(java.io.InputStream&nbsp;in,
                       java.util.zip.CRC32&nbsp;crc)
                throws java.io.IOException</PRE>
<DL>
<DD>Read a byte. 
 
 We do not expect to get a -1 reading.  If we do, we throw exception.
 Update the crc as we go.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - InputStream to read.<DD><CODE>crc</CODE> - CRC to update.
<DT><B>Returns:</B><DD>Byte read.
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="readByte(java.io.InputStream, java.util.zip.CRC32, byte[], int, int)"><!-- --></A><H3>
readByte</H3>
<PRE>
protected int <B>readByte</B>(java.io.InputStream&nbsp;in,
                       java.util.zip.CRC32&nbsp;crc,
                       byte[]&nbsp;buffer,
                       int&nbsp;offset,
                       int&nbsp;length)
                throws java.io.IOException</PRE>
<DL>
<DD>Read a byte. 
 
 We do not expect to get a -1 reading.  If we do, we throw exception.
 Update the crc as we go.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - InputStream to read.<DD><CODE>crc</CODE> - CRC to update.<DD><CODE>buffer</CODE> - Buffer to read into.<DD><CODE>offset</CODE> - Offset to start filling buffer at.<DD><CODE>length</CODE> - How much to read.
<DT><B>Returns:</B><DD>Bytes read.
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getFextra()"><!-- --></A><H3>
getFextra</H3>
<PRE>
public byte[] <B>getFextra</B>()</PRE>
<DL>
<DD><DL>

<DT><B>Returns:</B><DD>Returns the fextra.</DL>
</DD>
</DL>
<HR>

<A NAME="getFlg()"><!-- --></A><H3>
getFlg</H3>
<PRE>
public int <B>getFlg</B>()</PRE>
<DL>
<DD><DL>

<DT><B>Returns:</B><DD>Returns the flg.</DL>
</DD>
</DL>
<HR>

<A NAME="getOs()"><!-- --></A><H3>
getOs</H3>
<PRE>
public int <B>getOs</B>()</PRE>
<DL>
<DD><DL>

<DT><B>Returns:</B><DD>Returns the os.</DL>
</DD>
</DL>
<HR>

<A NAME="getXfl()"><!-- --></A><H3>
getXfl</H3>
<PRE>
public int <B>getXfl</B>()</PRE>
<DL>
<DD><DL>

<DT><B>Returns:</B><DD>Returns the xfl.</DL>
</DD>
</DL>
<HR>

<A NAME="getMtime()"><!-- --></A><H3>
getMtime</H3>
<PRE>
public int <B>getMtime</B>()</PRE>
<DL>
<DD><DL>

<DT><B>Returns:</B><DD>Returns the mtime.</DL>
</DD>
</DL>
<HR>

<A NAME="getLength()"><!-- --></A><H3>
getLength</H3>
<PRE>
public int <B>getLength</B>()</PRE>
<DL>
<DD><DL>

<DT><B>Returns:</B><DD>Returns the length.</DL>
</DD>
</DL>
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