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cdt/rse/doc/org.eclipse.rse.doc.isv/guide/tutorial/DeveloperSubSystem.html
2006-05-30 15:32:53 +00:00

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<h1>DeveloperSubSystem Class After Editing</h1>
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package samples.subsystems;
import com.ibm.etools.systems.dftsubsystem.impl.DefaultSubSystemImpl;
<b>import samples.model.*;
import com.ibm.etools.systems.subsystems.impl.*;
import com.ibm.etools.systems.subsystems.*;
import org.eclipse.core.runtime.*; // <i>for IProgressMonitor</i>
import com.ibm.etools.systems.core.clientserver.NamePatternMatcher;
import java.util.*;</b>
/**
* <i>This is our subsystem, which manages the remote connection and resources for</i>
* <i>a particular system connection object.</i>
*/
public class DeveloperSubSystem extends DefaultSubSystemImpl
{
<b>private TeamResource[] teams; // <i>faked-out master list of teams</i></b>
<b>private Vector devVector = new Vector(); // <i>faked-out master list of developers</i></b>
<b>private static int employeeId = 123456; // <i>employee Id factory</i></b>
/**
* <i>Constructor for DeveloperSubSystem.</i>
*/
public DeveloperSubSystem()
{
super();
}
/**
* <i>Return a singleton instance of an AbstractSystemManager subclass that manages
* a pool of ISystem objects, one per system connection. By default, getSystem()
* calls this, unless you override getSystem().
*
* @return DeveloperSystemManager.getTheDeveloperSystemManager()</i>
*/
public AbstractSystemManager getSystemManager()
{
return DeveloperSystemManager.getTheDeveloperSystemManager();
}
/**
* <i>For drag and drop, and clipboard support of remote objects.
*
* Return the remote object within the subsystem that corresponds to
* the specified unique ID. Because each subsystem maintains it's own
* objects, it's the responsability of the subsystem to determine
* how an ID (or key) for a given object maps to the real object.
* By default this returns null. </i>
*/
<b>public Object getObjectWithAbsoluteName(String key)
{
// <i> Functional opposite of getAbsoluteName(Object) in our resource adapters</i>
if (key.startsWith(&quot;Team_&quot;))
{
String teamName = key.substring(5);
TeamResource[] allTeams = getAllTeams();
for (int idx=0; idx&lt;allTeams.length; idx++)
if (allTeams[idx].getName().equals(teamName))
return allTeams[idx];
}
else if (key.startsWith(&quot;Devr_&quot;))
{
String devrId = key.substring(5);
DeveloperResource[] devrs = getAllDevelopers();
for (int idx=0; idx&lt;devrs.length; idx++)
if (devrs[idx].getId().equals(devrId))
return devrs[idx];
}
return null;
}</b>
/**
* <i>When a filter is expanded, this is called for each filter string in the filter.
* Using the criteria of the filter string, it must return objects representing remote resources.
* For us, this will be an array of TeamResource objects.
*
* @param monitor - the progress monitor in effect while this operation performs
* @param filterString - one of the filter strings from the expanded filter.</i>
*/
<A name="resolveFilterString"></A><b>protected Object[] internalResolveFilterString(IProgressMonitor monitor, String filterString)
throws java.lang.reflect.InvocationTargetException,
java.lang.InterruptedException
{
// <i>Fake it out for now and return dummy list. </i>
// <i>In reality, this would communicate with remote server-side code/data.</i>
TeamResource[] allTeams = getAllTeams();
// <i>Now, subset master list, based on filter string...</i>
NamePatternMatcher subsetter = new NamePatternMatcher(filterString);
Vector v = new Vector();
for (int idx=0; idx&lt;allTeams.length; idx++)
{
if (subsetter.matches(allTeams[idx].getName()))
v.addElement(allTeams[idx]);
}
TeamResource[] teams = new TeamResource[v.size()];
for (int idx=0; idx&lt;v.size(); idx++)
teams[idx] = (TeamResource)v.elementAt(idx);
return teams;
}</b>
/**
* <i>When a remote resource is expanded, this is called to return the children of the resource, if
* the resource's adapter states the resource object is expandable. &lt;br&gt;
* For us, it is a Team resource that was expanded, and an array of Developer resources will be returned.
*
* @param monitor - the progress monitor in effect while this operation performs
* @param parent - the parent resource object being expanded
* @param filterString - typically defaults to &quot;*&quot;. In future additional user-specific quick-filters may be supported.</i>
*/
<b>protected Object[] internalResolveFilterString(IProgressMonitor monitor, Object parent, String filterString)
throws java.lang.reflect.InvocationTargetException,
java.lang.InterruptedException
{
// <i>typically we ignore the filter string as it is always &quot;*&quot;
// until support is added for &quot;quick filters&quot; the user can specify/select
// at the time they expand a remote resource.</i>
TeamResource team = (TeamResource)parent;
return team.getDevelopers();
}</b>
// ------------------
// Our own methods...
// ------------------
/**
* <i>Get the list of all teams. Normally this would involve a trip the server, but we
* fake it out and return a hard-coded local list. </i>
*/
<b>public TeamResource[] getAllTeams()
{
if (teams == null)
teams = createTeams(&quot;Team &quot;, 4);
return teams;
}</b>
/**
* <i>Get the list of all developers. Normally this would involve a trip the server, but we
* fake it out and return a hard-coded local list. </i>
*/
<b>public DeveloperResource[] getAllDevelopers()
{
DeveloperResource[] allDevrs = new DeveloperResource[devVector.size()];
for (int idx=0; idx&lt;allDevrs.length; idx++)
allDevrs[idx] = (DeveloperResource)devVector.elementAt(idx);
return allDevrs;
}</b>
/*
* <i>Create and return a dummy set of teams</i>
*/
<b>private TeamResource[] createTeams(String prefix, int howMany)
{
TeamResource[] teams = new TeamResource[howMany];
for (int idx=0; idx&lt;teams.length; idx++)
{
teams[idx] = new TeamResource(this);
teams[idx].setName(prefix + (idx+1));
teams[idx].setDevelopers(createDevelopers(teams[idx].getName()+&quot; developer&quot;,idx+1));
}
return teams;
}</b>
/*
* <i>Create and return a dummy set of developers</i>
*/
<b>private DeveloperResource[] createDevelopers(String prefix, int nbr)
{
DeveloperResource[] devrs = new DeveloperResource[nbr];
for (int idx=0; idx&lt;devrs.length; idx++)
{
devrs[idx] = new DeveloperResource(this);
devrs[idx].setName(prefix + (idx+1));
devrs[idx].setId(Integer.toString(employeeId++));
devrs[idx].setDeptNbr(Integer.toString((idx+1)*100));
devVector.add(devrs[idx]); // update master list
}
return devrs;
}</b>
}
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