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<title>Getting Started</title>
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<h3>Getting Started<br />
</h3>
<b>Writing IDL files</b><br />
<br />
We will start from writing the idl file for each component.<br />
<ol>
<li>Create a directory named <code><span style="font-style: italic;">MyQuoter</span></code><span style="font-style: italic;">.</span></li>
<li>In <code style="font-style: italic;">MyQuoter</code>
directory, create one directory <span style="font-style: italic;">Stock_Base</span> for the base idl and
two more directories <span style="font-style: italic;">Broker</span>, <span style="font-style: italic;">Distributor</span> for each component. In
<code style="font-style: italic;">MyQuoter/Stock_Base</code>,
place an idl file <code style="font-style: italic;">Stock_Base.idl</code> that you could copy
from <a href="../Quoter/Simple/Stock_Base/Stock_Base.idl">here</a>. This
file defines the interfaces and events that will be used by
both Stock Distributor and Stock Broker.</li>
<li style="list-style-type: none; list-style-image: none; list-style-position: outside;">We put together the common
interface definitions so the base library can be shared by both
components, reducing the size of "real" components.<br />
</li>
<li>In <code style="font-style: italic;">MyQuoter/Distributor</code>, place an idl
file <code style="font-style: italic;">Distributor.idl</code>
that looks like <a href="../Quoter/Simple/Distributor/Distributor.idl">this</a>. This
file defines the StockDistributor component
interfaces.<br />
</li>
<li>In <code style="font-style: italic;">MyQuoter/Broker</code>
place an idl file <code><span style="font-style: italic;">Broker.id</span>l</code> that looks like
<a href="../Quoter/Simple/Broker/Broker.idl">this</a>. This
file defines the StockBroker component interface.<br />
</li>
</ol>
<br />
<b>Importing IDL to PICML</b><br />
<br />
To quick start our Stock Quoter modeling process in
GME, CoSMIC introduces <em>idl_to_picml</em> , which is an
executable program that imports the IDL files you just created
into PICML.<br />
<ol>
<li>Make sure <code>%COSMIC_ROOT%\bin</code> is included in the
PATH variable, e.g., c:\Program
Files\ISIS\CoSMIC\bin.<br />
</li>
<li>Open a command prompt, run VCVARS32.BAT from the MSVC .NET
folder if you haven't done so. It will set the environment for
using Microsoft Visual Studio .NET tools so that <span style="font-style: italic;">idl_to_picml</span> works properly.<br />
in my machine, VCVARS32.bat is in C:\Program Files\Microsoft
Visual Studio .NET 2003\Vc7\bin<br />
</li>
<li>In the same command prompt, change directory to
<code>MyQuoter\</code>, and type the following command:<br />
> <kbd>idl_to_picml -x MyQuoter -r . -I
.\Stock_Base</kbd><br />
(if the above command does not work, you may also
try this<br />
><kbd>idl_to_picml -x MyQuoter -r . -I .\Stock_Base -I
%TAO_ROOT% -I %TAO_ROOT%\orbsvcs -I
%CIAO_ROOT%\ciao)</kbd><br />
<em>idl_to_picml</em> will parse your IDL files and
generated a <code>MyQuoter.xme</code> file in the
<code>MyQuoter</code> directory. Note that if -x option is not
used, the default xme file name will be
<code>PICML_default_xme_file.xme.</code><br />
4. Start GME, select <strong>File->Import xml..</strong>,
and choose the xme file just generated. You should be able to
see an imported PICML model similar to the one shown in Figure
2.<br />
</li>
</ol>
<br />
<div style="text-align: center;">
<img alt="" src="Images/fig2.jpg" style="width: 781px; height: 635px;" /><br />
<br />
Figure 2<br />
</div>
<p> In the Browser of the generated model, the
<em>PredefinedTypes</em> folder contains a bunch of atomic
datatype elements that will be referenced by other modeling parts
later. You don't have to worry about them for now. The models in
<em>InterfaceDefinitions</em> folder are the PICML
representations ofthe IDL files you just imported. Double-click
to open <em>Broker</em>, it will show you a white, document-like
entity which represents a <<FileRef>> instance and a
yellow box-shaped entity representing a <<Package>>
instance. Their equivalent representations in IDL files are
"#include" and "module" respectively. Figure 3 gives you a clear
view of GME representation of all the 3 idl files created. We
will cover the other folders in the next section.</p>
<div style="text-align: center;">
<img alt="" src="Images/fig3.jpg" style="width: 223px; height: 336px;" /><br />
<br />
Figure 3<br />
<br />
</div>
Now we are ready to model the rest of the Stock Quoter
systems.<br />
<br />
<br />
<br />
<hr />
<address>
<a href="mailto:ming.xiong@vanderbilt.edu">Ming Xiong<br />
</a>
</address>
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