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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.5.0_07) on Sun May 06 17:59:50 GMT 2007 --><TITLE>WriterPoolMember (Heritrix 1.12.1)</TITLE><META NAME="keywords" CONTENT="org.archive.io.WriterPoolMember class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="WriterPoolMember (Heritrix 1.12.1)";}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/WriterPoolMember.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../org/archive/io/WriterPool.html" title="class in org.archive.io"><B>PREV CLASS</B></A> <A HREF="../../../org/archive/io/WriterPoolSettings.html" title="interface in org.archive.io"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html?org/archive/io/WriterPoolMember.html" target="_top"><B>FRAMES</B></A> <A HREF="WriterPoolMember.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.archive.io</FONT><BR>Class WriterPoolMember</H2><PRE>java.lang.Object <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>org.archive.io.WriterPoolMember</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../org/archive/io/ArchiveFileConstants.html" title="interface in org.archive.io">ArchiveFileConstants</A></DD></DL><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../org/archive/io/arc/ARCWriter.html" title="class in org.archive.io.arc">ARCWriter</A>, <A HREF="../../../org/archive/io/warc/ExperimentalWARCWriter.html" title="class in org.archive.io.warc">ExperimentalWARCWriter</A>, <A HREF="../../../org/archive/io/warc/v10/ExperimentalWARCWriter.html" title="class in org.archive.io.warc.v10">ExperimentalWARCWriter</A></DD></DL><HR><DL><DT><PRE>public abstract class <B>WriterPoolMember</B><DT>extends java.lang.Object<DT>implements <A HREF="../../../org/archive/io/ArchiveFileConstants.html" title="interface in org.archive.io">ArchiveFileConstants</A></DL></PRE><P>Member of <A HREF="../../../org/archive/io/WriterPool.html" title="class in org.archive.io"><CODE>WriterPool</CODE></A>. Implements rotating off files, file naming with some guarantee of uniqueness, and position in file. Subclass to pick up functionality for a particular Writer type.<P><P><DL><DT><B>Version:</B></DT> <DD>$Date: 2007-04-02 22:02:14 +0000 (Mon, 02 Apr 2007) $ $Revision: 5032 $</DD><DT><B>Author:</B></DT> <DD>stack</DD></DL><HR><P><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Field Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#DEFAULT_PREFIX">DEFAULT_PREFIX</A></B></CODE><BR> Default file prefix.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#DEFAULT_SUFFIX">DEFAULT_SUFFIX</A></B></CODE><BR> Default for file suffix.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#HOSTNAME_VARIABLE">HOSTNAME_VARIABLE</A></B></CODE><BR> Value to interpolate with actual hostname.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#UTF8">UTF8</A></B></CODE><BR> </TD></TR></TABLE> <A NAME="fields_inherited_from_class_org.archive.io.ArchiveFileConstants"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Fields inherited from interface org.archive.io.<A HREF="../../../org/archive/io/ArchiveFileConstants.html" title="interface in org.archive.io">ArchiveFileConstants</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../org/archive/io/ArchiveFileConstants.html#ABSOLUTE_OFFSET_KEY">ABSOLUTE_OFFSET_KEY</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#CDX">CDX</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#CDX_FILE">CDX_FILE</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#CDX_LINE_BUFFER_SIZE">CDX_LINE_BUFFER_SIZE</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#COMPRESSED_FILE_EXTENSION">COMPRESSED_FILE_EXTENSION</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#CRLF">CRLF</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#DATE_FIELD_KEY">DATE_FIELD_KEY</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#DEFAULT_DIGEST_METHOD">DEFAULT_DIGEST_METHOD</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#DOT_COMPRESSED_FILE_EXTENSION">DOT_COMPRESSED_FILE_EXTENSION</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#DUMP">DUMP</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#GZIP_DUMP">GZIP_DUMP</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#HEADER">HEADER</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#INVALID_SUFFIX">INVALID_SUFFIX</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#LENGTH_FIELD_KEY">LENGTH_FIELD_KEY</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#MIMETYPE_FIELD_KEY">MIMETYPE_FIELD_KEY</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#NOHEAD">NOHEAD</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#OCCUPIED_SUFFIX">OCCUPIED_SUFFIX</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#READER_IDENTIFIER_FIELD_KEY">READER_IDENTIFIER_FIELD_KEY</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#RECORD_IDENTIFIER_FIELD_KEY">RECORD_IDENTIFIER_FIELD_KEY</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#SINGLE_SPACE">SINGLE_SPACE</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#TYPE_FIELD_KEY">TYPE_FIELD_KEY</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#URL_FIELD_KEY">URL_FIELD_KEY</A>, <A HREF="../../../org/archive/io/ArchiveFileConstants.html#VERSION_FIELD_KEY">VERSION_FIELD_KEY</A></CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> </CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#WriterPoolMember(java.util.concurrent.atomic.AtomicInteger, java.util.List, java.lang.String, boolean, long, java.lang.String)">WriterPoolMember</A></B>(java.util.concurrent.atomic.AtomicInteger serialNo, java.util.List<java.io.File> dirs, java.lang.String prefix, boolean cmprs, long maxSize, java.lang.String extension)</CODE><BR> Constructor.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> </CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#WriterPoolMember(java.util.concurrent.atomic.AtomicInteger, java.util.List, java.lang.String, java.lang.String, boolean, long, java.lang.String)">WriterPoolMember</A></B>(java.util.concurrent.atomic.AtomicInteger serialNo, java.util.List<java.io.File> dirs, java.lang.String prefix, java.lang.String suffix, boolean cmprs, long maxSize, java.lang.String extension)</CODE><BR> Constructor.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected </CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#WriterPoolMember(java.util.concurrent.atomic.AtomicInteger, java.io.OutputStream, java.io.File, boolean, java.lang.String)">WriterPoolMember</A></B>(java.util.concurrent.atomic.AtomicInteger serialNo, java.io.OutputStream out, java.io.File file, boolean cmprs, java.lang.String a14DigitDate)</CODE><BR> Constructor.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Method Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#checkSize()">checkSize</A></B>()</CODE><BR> Call this method just before/after any significant write.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected java.io.File</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#checkWriteable(java.io.File)">checkWriteable</A></B>(java.io.File d)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#close()">close</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#createFile()">createFile</A></B>()</CODE><BR> Create a new file.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#createFile(java.io.File)">createFile</A></B>(java.io.File file)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#flush()">flush</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#getBaseFilename()">getBaseFilename</A></B>()</CODE><BR> Get the file name</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#getCreateTimestamp()">getCreateTimestamp</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.io.File</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#getFile()">getFile</A></B>()</CODE><BR> Get this file.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected java.io.File</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#getNextDirectory(java.util.List)">getNextDirectory</A></B>(java.util.List<java.io.File> dirs)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected java.io.OutputStream</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#getOutputStream()">getOutputStream</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#getPosition()">getPosition</A></B>()</CODE><BR> Postion in current physical file.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../../../org/archive/util/TimestampSerialno.html" title="class in org.archive.util">TimestampSerialno</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#getTimestampSerialNo()">getTimestampSerialNo</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../../../org/archive/util/TimestampSerialno.html" title="class in org.archive.util">TimestampSerialno</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/archive/io/WriterPoolMember.html#getTimestampSerialNo(java.lang.String)">getTimestampSerialNo</A></B>(java.lang.String timestamp)</CODE><BR> Do static synchronization around getting of counter and timestamp so no chance of a thread getting in between the getting of timestamp and?? 快捷鍵說明
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