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<H1>Compilation and deployment</H1>
<H2 STYLE="PAGE-BREAK-AFTER: avoid">Compilation</H2>
<P>Once all the code has been
written, compilation of the code would be the next step.<br>MPC is used in order to
create the Makefiles and projects files. All MPC files that are needed for this
tutorial are in the same directory as the accompanying IDL or executor files.<br>In
order to make the GNU make files or the Visual Studio project files, the
following steps should be performed :
<UL>
<LI>Start a command shell and navigate to :<br> <CODE>%CIAO_ROOT%/connectors/ami4ccm/tutorials/Hello/Hello_asm</CODE>
<LI>Run<br>
<ul>
<LI><CODE>perl %ACE_ROOT%/bin/mwc.pl -type vc9</CODE> to create Visual Studio 2008 project files.</LI>
<LI><CODE>perl %ACE_ROOT%/bin/mwc.pl -type gnuace</CODE> to create the GNU make files.</LI>
</ul>
<LI>Now compile the code like you're used to.</li>
</UL>
<P>If all went well, all libraries are in the Hello_asm/lib directory.</P>
<H2>Deployment</H2>
<P>Once all binaries are compiled, they're ready to be deployed.<br> In this tutorial we are using DAnCE to
deploy our system. DAnCE starts a system in two phases : </P>
<OL>
<LI>configuration_complete</li>
<LI>ccm_activate </LI>
</OL>
DAnCE shuts down a system again in two phases :
<OL>
<LI>passivate</LI>
<LI>ccm_remove</LI>
</OL>
<P>Each component should have
these four methods implemented. The business logic implemented in each step
depends on you implementation. There're several processes taking care of the
total deployment process. See the DAnCE documentation for more information about
which processes there are and what their responsibilities are. DAnCE will start
and shutdown a system with the aid of a deployment plan. A deployment plan
describes which artifacts must run on which nodes and which components are
connected to eachother via which interface (more on this later). All connections
between components are made before 'configuration_complete' is called. </P>
<P>The deployment plan will be
generated by the modelling tools but we take a brief look at the most important
items of a deployment plan. A deployment plan is a XML based file which is
devided into the following (main) sections: </P>
<UL>
<LI>Implementations</LI>
<LI>Entry points </LI>
<LI>Instances </LI>
<LI>Connections </LI>
<LI>Artifacts</LI>
</UL>
<P ><I><B>All deployment code fragments mentioned in the rest of this
tutorial are *NO* exports of any modelling tool.</B></I></P>
<H3 STYLE="PAGE-BREAK-AFTER: avoid">Implementations and Entry Points</H3>
<P>This defines which executor and servant
artifacts (binaries) should be used. Implementations also defines
which entry points in the binaries should be used. In this example
there are neeede 3 implementation sections, for the Sender Receiver
and AMI connector. <A href="Code/Deployment/descriptors/implementation.cdp">This</A> file
shows the implementation section of the AMI connector. Beware that artifacts and
entry points are exact otherwise deployment will fail.</P>
<H3STYLE="PAGE-BREAK-AFTER: avoid">Instances</H3>
<P>Instances define which artifacts run on
which node. Every fysical artifact in the system results in one
instance. The <node> section refers to the fysical node on
which this instance will be deployed. An instance always refers to an
implementation. It's possible that more than one instance refers to
the same implementation. The instance section also provide the
initial values of all attributes defined on the component. <A href="Code/Deployment/descriptors/instance.cdp">This</A>
file shows the instance section of the Sender, Receiver and AMI
connector.<U><B>The instance of the AMI connector
uses the same node as the Sender! </B></U></P>
<H3 STYLE="PAGE-BREAK-AFTER: avoid">Connections</H3>
<P>A connection section defines
which components are connected together. The connection is 'local' since a
connector and a component are always running in the same process. Now that we
have got all the data we need to know to make a connection for the asynchronous
methods between the Sender and AMI connector (1) and between the AMI connector
and the receiver (2). For the synchronous methods we need a connection between
the Sender and the receiver. (3)</P>
<H4>(1) </H4>
<P><connection><br>
<font color="grey">//unique name of the connection</FONT><BR>
<name>run_asynch_foo_connection</name><BR>
<deployRequirement><BR>
<name>edu.dre.vanderbilt.DAnCE.ConnectionType</name><BR>
<resourceType>Local_Interface</resourceType><BR>
</deployRequirement><BR>
<internalEndpoint><FONT COLOR="grey">//First endpoint (the Sender component)</FONT><br>
<FONT COLOR="grey">// PortName is defined as “sendc_” + name of port defined in Hello_Sender_comp.idl</FONT><BR>
<portName>sendc_run_my_foo</portName><BR>
<provider>false</provider><BR>
<kind>SimplexReceptacle</kind><BR>
<instance xmi:idref="Hello.ComponentImplementations.HelloImplementation.Hello.Sender"
/> <FONT COLOR="grey">//The reference to the sender instance.</FONT><BR>
</internalEndpoint><BR>
<internalEndpoint><FONT COLOR="grey">//Second endpoint (the AMI connector component);<BR></FONT>
</FONT><portName>ami4ccm_port_ami4ccm_provides</portName>
<FONT COLOR="grey">//PortName alsways the same <BR></FONT>
<provider>true</provider><BR>
<kind>Facet</kind><BR>
<instance xmi:idref="Hello.ComponentImplementations.HelloImplementation.Hello.AMI"
/> <FONT color="grey">//The reference to the connector instance<BR></FONT>
</internalEndpoint><BR>
</connection>
</P>
<H4>(2) </H4>
<P><connection><BR>
<name>do_foo_connection</name><font color="grey">//unique name of the connection</FONT><BR>
<internalEndpoint><FONT color="grey">//First endpoint (the Receiver component)</FONT><BR>
<portName>do_my_foo</portName><FONT color="grey>// PortName is defined as name of port
defined in Hello_Receiver_comp.idl</FONT><BR>
<provider>true</provider><BR>
<kind>Facet</kind><BR>
<instance xmi:idref="Hello.ComponentImplementations.HelloImplementation.Hello.Receiver" /><BR>
</internalEndpoint><BR>
<internalEndpoint><FONT color="grey">//Second endpoint (the AMI component)</FONT><BR>
<portName>ami4ccm_port_ami4ccm_uses</portName><FONT color="grey">// PortName alsways the same </FONT><BR>
<provider>false</provider><BR>
<kind>SimplexReceptacle</kind><BR>
<instance xmi:idref="Hello.ComponentImplementations.HelloImplementation.Hello.AMI" /><BR>
</internalEndpoint><BR>
</connection>
</P>
<H4>(3)</H4>
<P><connection><BR>
<name>synch_foo_connection</name><BR>
<internalEndpoint><BR>
<portName>do_my_foo</portName><FONT color="grey">// PortName is defined as name of port
defined in Hello_Receiver_comp.idl</FONT><BR>
<provider>true</provider><FONT color=""grey">// The receiver provides this port</FONT><BR>
<kind>Facet</kind><BR>
<instance xmi:idref="Hello.ComponentImplementations.HelloImplementation.Hello.Receiver" /><BR>
</internalEndpoint><BR>
<internalEndpoint><BR>
<portName>run_my_foo</portName><FONT color="grey">// PortName is defined as name of port
defined in Hello_Sender_comp.idl</FONT><BR>
<provider>false</provider><FONT color="grey">// The sender uses this port</FONT><BR>
<kind>SimplexReceptacle</kind><BR>
<instance xmi:idref="Hello.ComponentImplementations.HelloImplementation.Hello.Sender" /><BR>
</internalEndpoint><BR>
</connection>
</P>
<P>Take a look at <A href="Code/Deployment/descriptors/connections.cdp">this</A> file to
see which connection should be made by DAnCE in order to run the Hello tutorial
properly.</P>
<P>When the deployment tools (in this case DAnCE) deploys this
system, it'll connect all defined connectors before the system is started (i.e.
before configuration_complete is called on a component).</P>
<H3 >Coding connections</H3>
<P>Every component has got a context. The context is set by
DAnCE and is the 'gateway' to all other component your component is connected
to. The context caches all these connections so that the user doesn't need to
cache those in his/her component.</P>
<P><B><U>Sender:</B></U><br>The following code retrieves the
connection to the AMI connector interface from the context:<br>
<CODE>::Hello::AMI4CCM_MyFoo_obj_var asynch_foo = this->context_->get_connection_sendc_run_my_foo();</CODE>
<br><BR>
The following code retrieves the connection to the Receiver
interface from the context:<br>
<CODE>::Hello::MyFoo_obj_var synch_foo = this->context_->get_connection_run_my_foo ();</CODE>
</p>
<P><B><U>Receiver: </B></U><br>
The Receiver provide one facet for the AMI connector and for the sender.<br>
<CODE>::Hello::CCM_MyFoo_obj_ptr<BR>
Receiver_exec_i::get_do_my_foo (void)<BR>
{<BR> return new MyFoo_exec_i ();<BR>
}</P>
<H3>Artifacts</H3>
<P>Artifacts sections contains the names of the binaries. See <A href="Code/Deployment/descriptors/artifacts.cdp">
this</A> files for an overview of all artifacts in the Hello tutorial.</P>
<H3>Complete plan</H3>
<P <A href="Code/Deployment/descriptors/Plan.cdp">This</A> file shows the complete deployment
plan.</P>
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