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ExternalCommand
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net.fenyo.gnetwatch.actions</FONT>
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Class ExternalCommand</H2>
<PRE>
java.lang.Object
  <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>net.fenyo.gnetwatch.actions.ExternalCommand</B>
</PRE>
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<DL>
<DT><PRE>public class <B>ExternalCommand</B><DT>extends java.lang.Object</DL>
</PRE>

<P>
Instances of this class launch and manage processes outside of the JVM.
<P>

<P>
<DL>
<DT><B>Version:</B></DT>
  <DD>$Id: ExternalCommand.java,v 1.14 2007/03/03 00:38:20 fenyo Exp $</DD>
<DT><B>Author:</B></DT>
  <DD>Alexandre Fenyo</DD>
</DL>
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<!-- =========== FIELD SUMMARY =========== -->

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<CODE>private &nbsp;java.lang.String[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#cmdLine">cmdLine</A></B></CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private &nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#directory">directory</A></B></CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private &nbsp;java.io.BufferedReader</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#errReader">errReader</A></B></CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<CODE>private static&nbsp;Log</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#log">log</A></B></CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<CODE>private &nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#merge">merge</A></B></CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<CODE>private &nbsp;java.lang.Process</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#process">process</A></B></CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<CODE>private &nbsp;java.io.BufferedReader</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#reader">reader</A></B></CODE>

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<CODE>private &nbsp;java.lang.StringBuffer</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#sb">sb</A></B></CODE>

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<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#ExternalCommand(java.lang.String[])">ExternalCommand</A></B>(java.lang.String[]&nbsp;cmdLine)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates an ExternalCommand instance and saves the command line.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#ExternalCommand(java.lang.String[], boolean)">ExternalCommand</A></B>(java.lang.String[]&nbsp;cmdLine,
                boolean&nbsp;merge)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates an ExternalCommand instance and saves the command line.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#ExternalCommand(java.lang.String[], java.lang.String)">ExternalCommand</A></B>(java.lang.String[]&nbsp;cmdLine,
                java.lang.String&nbsp;directory)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates an ExternalCommand instance and saves the command line.</TD>
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<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#end()">end</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Make sure the underlying file descriptors are closed, to avoid maintening unused resources in an application server JVM for instance.</TD>
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<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#fork()">fork</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Launches a process but do not wait for its completion.</TD>
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<CODE>private &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#kill()">kill</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Kills the process.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#logArgs()">logArgs</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Displays command line arguments.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private &nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#readLine(java.io.Reader)">readLine</A></B>(java.io.Reader&nbsp;r)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reads a line from the process output.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#readLineStderr()">readLineStderr</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reads one line of the stderr.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#readLineStdout()">readLineStdout</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reads one line of the stdout.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#readStderr()">readStderr</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reads stderr.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#readStdout()">readStdout</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reads stdout.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#readStdoutStderr()">readStdoutStderr</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Merges stdout and stderr.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#runStdout()">runStdout</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reads the whole standard output.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/fenyo/gnetwatch/actions/ExternalCommand.html#runStdoutStderr()">runStdoutStderr</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reads the whole output.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
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<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>

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<A NAME="log"><!-- --></A><H3>
log</H3>
<PRE>
private static Log <B>log</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>

<A NAME="merge"><!-- --></A><H3>
merge</H3>
<PRE>
private boolean <B>merge</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>

<A NAME="cmdLine"><!-- --></A><H3>
cmdLine</H3>
<PRE>
private final java.lang.String[] <B>cmdLine</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>

<A NAME="directory"><!-- --></A><H3>
directory</H3>
<PRE>
private final java.lang.String <B>directory</B></PRE>
<DL>
<DL>
</DL>
</DL>
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