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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><meta http-equiv="Content-Style-Type" content="text/css"><title>Tuscany
Hello World RMI Reference Sample</title><!-- LINK rel="stylesheet" href="ait.css" type="text/css" --><!-- maven -->
<style type="text/css" media="all">
@import url("../../../../css/maven-base.css");
@import url("../../../../css/maven-theme.css");
@import url("../../../../css/site.css");
</style><link rel="stylesheet" href="./css/print.css" type="text/css" media="print"><!-- end maven --></head>
<body>
<H3>Tuscany HelloWorld - RMI Reference Sample</H3>
<H3>Overview</H3>
<TABLE border="0">
<TBODY>
<TR>
<TD width="100%" valign="top" align="left">The RMI Reference sample demonstrates how the Tuscany Runtime provides RMI client bindings for service components that would like to refer RMI Servcies.</TD>
</TR>
</TBODY>
</TABLE>
<H3>Location</H3>
<P>The source for this sample is located in the paths - <I>samples\standalone\helloworldRMIReference</I> <I></I>
of the source
distribution.<BR>
<BR>If there is binary distribution available for these samples, then you may find these samples packaged as <I></I><I>sample-helloworld-rmiReference.jar.</I>
</P>
<H3>Building & Running the HelloWorldRMIReference Sample Source</H3>
<P>If you are working with a source distribution, then you must first build the source of this sample. <BR>- Ensure that you have Java 5 installed on your system.<BR>- Next, you must have Maven 2.0.4 installed on your system. Look up
http://maven.apache.org/download.html for downloading and installing
Maven.</P>
<H4>Building the HelloWorldRMIReference Sample</H4>
<TABLE border="0">
<TBODY>
<TR>
<TD valign="top"></TD>
<TD valign="top">Having installed Maven, , open a command line console and switch over to the directory on your local
system, where you have extracted the source.<BR>-
Now switch futher into
the subdirectory <I>samples\standalone\helloworldRMIReference. </I>In this directory execute the following command<TABLE border="0">
<TBODY>
<TR>
<TD><FONT color="purple">></FONT></TD>
<TD><FONT color="purple" face="Courier New">mvn</FONT></TD>
</TR>
</TBODY>
</TABLE>This will build the <I>helloworldRMIReference</I> sample, package a JAR file for the composite and make this available in sub-directory <I>samples\standalone\helloworldRMIReference\target</I></TD>
<TD></TD>
</TR>
</TBODY>
</TABLE>
<H4>Setting up Tuscany Standalone Runtime </H4>
<P>To run these samples you need the Tuscany Standalone Runtime. This is
available as a distribution that can be conveniently unpacked and setup
in the samples directory itself. For this, do the following: -</P>
<TABLE border="0">
<TBODY>
<TR>
<TD valign="top" align="right">i) </TD>
<TD>From the directory <I>samples\standalone\helloworldRMIReference</I>
execute the following command<TABLE border="0">
<TBODY>
<TR>
<TD><FONT color="purple">></FONT></TD>
<TD><FONT color="purple" face="Courier New">mvn dependency:unpack</FONT></TD>
</TR>
</TBODY>
</TABLE>
This will unpack the Tuscany Standalone Runtime Distribution to the <I>target\distribution </I>sub-directory within the present working directory - <I>samples\standalone\helloworldRMIReference</I></TD>
</TR>
<TR>
<TD valign="top">ii)</TD>
<TD>Since this sample would require the RMI Binding Extension of Tuscany you must copy the RMI Extension JAR from the <I>contrib </I>sub-directory into the <I>extensions </I>directory of the distribution. ie. execute the following from the
<I>samples\standalone\helloworldRMIReference </I>sub-directory: -
<TABLE>
<TBODY>
<TR>
<TD valign="top"><FONT color="purple">></FONT></TD>
<TD><FONT color="purple" face="Courier New">copy target\distribution\contrib\rmi-1.0-incubator-M2.jar <FONT
color="purple" face="Courier New">target\distribution\extensions\rmi-1.0-incubator-M2.jar</FONT></FONT></TD>
</TR>
</TBODY>
</TABLE>
<I>Note</I> : <I>If you are working with SNAPSHOTs versions of
Tuscany Extensions then the file <B>rmi-1.0-incubator-M2.jar</B> in
the above command must be substituted with <B>rmi-1.0-incubator-M2.jar</B></I></TD>
</TR>
</TBODY>
</TABLE>
<H4><BR>
Running the HelloWorldRMIReference Sample</H4>
<P>Now that the sample source has been built and the Tuscany Standalone Runtime setup, you may run the HelloWorldRMIReference sample as follows: -</P>
<TABLE border="0">
<TBODY>
<TR>
<TD valign="top">i) </TD>
<TD>First ensure that the HelloWorldRMIService Sample is up and running. </TD>
</TR>
<TR>
<TD valign="top">ii)</TD>
<TD>Switch to the <I>samples\standalone\helloworldRMIReference\target\distribution
</I>sub-directory and execute the following command: <TABLE>
<TBODY>
<TR>
<TD><FONT color="purple">></FONT></TD>
<TD><FONT color="purple" face="Courier New">java -jar
bin\launcher.jar ..\sample-helloworld-rmiReference.jar</FONT></TD>
</TR>
</TBODY>
</TABLE>
</TD>
</TR>
<TR>
<TD valign="top">iii)</TD>
<TD>Running this sample will send a <I>'sayHello'</I> request to the HelloWorldRMIService (that must be running) with the argument '<I>name</I>' set to the string <I>"SCA
RMI Client"</I></TD>
</TR>
<TR>
<TD valign="top">iii)</TD>
<TD>You will initially observe messages that relate to resolution of dependencies required to run this sample and finlly see the following message on your console<BR>
<FONT face="Courier New" color="green"></FONT><FONT color="green" face="Courier New">***********************************************************<BR>
Hello SCA RMI Client - from the SCA RMI Service<BR>
***********************************************************</FONT></TD>
</TR>
<TR>
<TD valign="top">iv)</TD>
<TD>This message indicates that the HelloWorldRMIReference sample has successfuly invoked the HelloWorldRMIService and obtained the string value <FONT
color="green" face="Courier New">"Hello SCA RMI Client - from the SCA
RMI Service"</FONT></TD>
</TR>
<TR>
<TD valign="top">v)</TD>
<TD>Meanwhile, on the console where you have started the HelloworldRMIService sample you will see a message <FONT
color="green">"Saying Hello to - SCA RMI Client"</FONT> that is displayed (implying that its service method was invoked)</TD>
</TR>
</TBODY>
</TABLE>
<H3><B><I><FONT color="maroon" size="+1">Note : You may also try the
HelloWorldRMIReference Sample by creating your own RMI Server with the following attributes </FONT></I></B></H3><TABLE border="0">
<TBODY>
<TR>
<TD align="right"><FONT color="maroon">host =</FONT></TD>
<TD><FONT color="maroon">"localhost"</FONT></TD>
</TR>
<TR>
<TD align="right"><FONT color="maroon">port =</FONT></TD>
<TD><FONT color="maroon">"1099"</FONT></TD>
</TR>
<TR>
<TD align="right"><FONT color="maroon">server name =</FONT></TD>
<TD><FONT color="maroon">"HelloWorldRemoteService"</FONT></TD>
</TR>
</TBODY>
</TABLE>
<P><I><FONT color="maroon">Note: You are free to modify any of the above
(host, port, server name) by making corresponding modifications to the
default.scdl file of the HelloWorldRMIReference sample and then running this
sample.</FONT></I></P>
<P><B><I><FONT color="maroon" size="+1"></FONT></I></B>
</P><H3>Code Overview</H3>
The source files are physically organized as shown below:<br>
<table style="text-align: left; width: 100%;" border="1" cellpadding="2" cellspacing="2"><tbody><tr><td>
<pre>
<U><B></B></U><B><U>RMI Reference Sample</U></B>
+---main<BR> +---java<BR> | +---helloworld
HelloWorldService.java
HelloWorldImpl.java
HelloWorldRmiClient.java
+---resources
+----META-INF
+----sca
default.scdl</pre></td></tr></tbody></table>
<H4><BR>
<B>RMI Reference Sample</B></H4>
<TABLE border="1">
<TBODY>
<TR>
<TD width="230" valign="top">default.scdl</TD>
<TD width="396" valign="top">Defines the assembly of the Helloworld
Application with the HelloWorldImpl component referring the a
HelloWorld RMI Service</TD>
</TR>
<TR>
<TD width="230">HelloWorldService.java</TD>
<TD width="396">Defines a HelloWorld service interface</TD>
</TR>
<TR>
<TD width="230">HelloWorldImpl.java</TD>
<TD width="396">Implements the HelloWorldService interface. This
implementation inturn calls out to the RMI Service under the covers
of the SCA Runtime - i.e. you will never notice any APIs in
java.rmi.* used in this application</TD>
</TR>
<TR>
<TD width="230">HelloWorldRmiClient.java</TD>
<TD width="396">Launches the Standalone Tuscany Runtime with the RMI
Client SCA Application loaded and run.</TD>
</TR>
</TBODY>
</TABLE>
</p></body></html>
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