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TimeTCPClient (libcommons-net2-java API)
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org.apache.commons.net.time</FONT>
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Class TimeTCPClient</H2>
<PRE>
<A HREF="file:///usr/share/doc/default-jdk-doc/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../../org/apache/commons/net/SocketClient.html" title="class in org.apache.commons.net">org.apache.commons.net.SocketClient</A>
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.commons.net.time.TimeTCPClient</B>
</PRE>
<HR>
<DL>
<DT><PRE>public final class <B>TimeTCPClient</B><DT>extends <A HREF="../../../../../org/apache/commons/net/SocketClient.html" title="class in org.apache.commons.net">SocketClient</A></DL>
</PRE>
<P>
The TimeTCPClient class is a TCP implementation of a client for the
Time protocol described in RFC 868. To use the class, merely
establish a connection with
<A HREF="../../../../../org/apache/commons/net/SocketClient.html#connect(java.net.InetAddress, int)"><CODE>connect </CODE></A>
and call either <A HREF="../../../../../org/apache/commons/net/time/TimeTCPClient.html#getTime()"><CODE>getTime() </CODE></A> or
<A HREF="../../../../../org/apache/commons/net/time/TimeTCPClient.html#getDate()"><CODE>getDate() </CODE></A> to retrieve the time, then
call <A HREF="../../../../../org/apache/commons/net/SocketClient.html#disconnect()"><CODE>disconnect </CODE></A>
to close the connection properly.
<p>
<p>
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD>Daniel F. Savarese</DD>
<DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/commons/net/time/TimeUDPClient.html" title="class in org.apache.commons.net.time"><CODE>TimeUDPClient</CODE></A></DL>
<HR>
<P>
<!-- =========== FIELD SUMMARY =========== -->
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/commons/net/time/TimeTCPClient.html#DEFAULT_PORT">DEFAULT_PORT</A></B></CODE>
<BR>
The default time port.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static long</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/commons/net/time/TimeTCPClient.html#SECONDS_1900_TO_1970">SECONDS_1900_TO_1970</A></B></CODE>
<BR>
The number of seconds between 00:00 1 January 1900 and
00:00 1 January 1970.</TD>
</TR>
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<TH ALIGN="left"><B>Fields inherited from class org.apache.commons.net.<A HREF="../../../../../org/apache/commons/net/SocketClient.html" title="class in org.apache.commons.net">SocketClient</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../org/apache/commons/net/SocketClient.html#_defaultPort_">_defaultPort_</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#_input_">_input_</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#_output_">_output_</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#_serverSocketFactory_">_serverSocketFactory_</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#_socket_">_socket_</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#_socketFactory_">_socketFactory_</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#_timeout_">_timeout_</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#connectTimeout">connectTimeout</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#NETASCII_EOL">NETASCII_EOL</A></CODE></TD>
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<TD><CODE><B><A HREF="../../../../../org/apache/commons/net/time/TimeTCPClient.html#TimeTCPClient()">TimeTCPClient</A></B>()</CODE>
<BR>
The default TimeTCPClient constructor.</TD>
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<B>Method Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="file:///usr/share/doc/default-jdk-doc/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/commons/net/time/TimeTCPClient.html#getDate()">getDate</A></B>()</CODE>
<BR>
Retrieves the time from the server and returns a Java Date
containing the time converted to the local timezone.</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/apache/commons/net/time/TimeTCPClient.html#getTime()">getTime</A></B>()</CODE>
<BR>
Retrieves the time from the server and returns it.</TD>
</TR>
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<TH ALIGN="left"><B>Methods inherited from class org.apache.commons.net.<A HREF="../../../../../org/apache/commons/net/SocketClient.html" title="class in org.apache.commons.net">SocketClient</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../org/apache/commons/net/SocketClient.html#_connectAction_()">_connectAction_</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#connect(java.net.InetAddress)">connect</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#connect(java.net.InetAddress, int)">connect</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#connect(java.net.InetAddress, int, java.net.InetAddress, int)">connect</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#connect(java.lang.String)">connect</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#connect(java.lang.String, int)">connect</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#connect(java.lang.String, int, java.net.InetAddress, int)">connect</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#disconnect()">disconnect</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#getConnectTimeout()">getConnectTimeout</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#getDefaultPort()">getDefaultPort</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#getDefaultTimeout()">getDefaultTimeout</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#getKeepAlive()">getKeepAlive</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#getLocalAddress()">getLocalAddress</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#getLocalPort()">getLocalPort</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#getRemoteAddress()">getRemoteAddress</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#getRemotePort()">getRemotePort</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#getServerSocketFactory()">getServerSocketFactory</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#getSoLinger()">getSoLinger</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#getSoTimeout()">getSoTimeout</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#getTcpNoDelay()">getTcpNoDelay</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#isConnected()">isConnected</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#setConnectTimeout(int)">setConnectTimeout</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#setDefaultPort(int)">setDefaultPort</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#setDefaultTimeout(int)">setDefaultTimeout</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#setKeepAlive(boolean)">setKeepAlive</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#setReceiveBufferSize(int)">setReceiveBufferSize</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#setSendBufferSize(int)">setSendBufferSize</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#setServerSocketFactory(javax.net.ServerSocketFactory)">setServerSocketFactory</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#setSocketFactory(javax.net.SocketFactory)">setSocketFactory</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#setSoLinger(boolean, int)">setSoLinger</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#setSoTimeout(int)">setSoTimeout</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#setTcpNoDelay(boolean)">setTcpNoDelay</A>, <A HREF="../../../../../org/apache/commons/net/SocketClient.html#verifyRemote(java.net.Socket)">verifyRemote</A></CODE></TD>
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<A NAME="DEFAULT_PORT"><!-- --></A><H3>
DEFAULT_PORT</H3>
<PRE>
public static final int <B>DEFAULT_PORT</B></PRE>
<DL>
<DD>The default time port. It is set to 37 according to RFC 868.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.apache.commons.net.time.TimeTCPClient.DEFAULT_PORT">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="SECONDS_1900_TO_1970"><!-- --></A><H3>
SECONDS_1900_TO_1970</H3>
<PRE>
public static final long <B>SECONDS_1900_TO_1970</B></PRE>
<DL>
<DD>The number of seconds between 00:00 1 January 1900 and
00:00 1 January 1970. This value can be useful for converting
time values to other formats.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.apache.commons.net.time.TimeTCPClient.SECONDS_1900_TO_1970">Constant Field Values</A></DL>
</DL>
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<A NAME="TimeTCPClient()"><!-- --></A><H3>
TimeTCPClient</H3>
<PRE>
public <B>TimeTCPClient</B>()</PRE>
<DL>
<DD>The default TimeTCPClient constructor. It merely sets the default
port to <code> DEFAULT_PORT </code>.
<P>
</DL>
<!-- ============ METHOD DETAIL ========== -->
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<A NAME="getTime()"><!-- --></A><H3>
getTime</H3>
<PRE>
public long <B>getTime</B>()
throws <A HREF="file:///usr/share/doc/default-jdk-doc/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Retrieves the time from the server and returns it. The time
is the number of seconds since 00:00 (midnight) 1 January 1900 GMT,
as specified by RFC 868. This method reads the raw 32-bit big-endian
unsigned integer from the server, converts it to a Java long, and
returns the value.
<p>
The server will have closed the connection at this point, so you should
call
<A HREF="../../../../../org/apache/commons/net/SocketClient.html#disconnect()"><CODE>disconnect </CODE></A>
after calling this method. To retrieve another time, you must
initiate another connection with
<A HREF="../../../../../org/apache/commons/net/SocketClient.html#connect(java.net.InetAddress, int)"><CODE>connect </CODE></A>
before calling <code> getTime() </code> again.
<p>
<P>
<DD><DL>
<DT><B>Returns:</B><DD>The time value retrieved from the server.
<DT><B>Throws:</B>
<DD><CODE><A HREF="file:///usr/share/doc/default-jdk-doc/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - If an error occurs while fetching the time.</DL>
</DD>
</DL>
<HR>
<A NAME="getDate()"><!-- --></A><H3>
getDate</H3>
<PRE>
public <A HREF="file:///usr/share/doc/default-jdk-doc/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</A> <B>getDate</B>()
throws <A HREF="file:///usr/share/doc/default-jdk-doc/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Retrieves the time from the server and returns a Java Date
containing the time converted to the local timezone.
<p>
The server will have closed the connection at this point, so you should
call
<A HREF="../../../../../org/apache/commons/net/SocketClient.html#disconnect()"><CODE>disconnect </CODE></A>
after calling this method. To retrieve another time, you must
initiate another connection with
<A HREF="../../../../../org/apache/commons/net/SocketClient.html#connect(java.net.InetAddress, int)"><CODE>connect </CODE></A>
before calling <code> getDate() </code> again.
<p>
<P>
<DD><DL>
<DT><B>Returns:</B><DD>A Date value containing the time retrieved from the server
converted to the local timezone.
<DT><B>Throws:</B>
<DD><CODE><A HREF="file:///usr/share/doc/default-jdk-doc/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - If an error occurs while fetching the time.</DL>
</DD>
</DL>
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