Re: [eclipse-dev] Problem Adding NatureIds to JavaProjects

[John Arthorne <John_Arthorne@xxxxxxxxxx>]

The eclipse.platform newsgroup would
be an appropriate place to ask questions like this.  This mailing
list is for discussion about the implementation of Eclipse itself.  (Hint:
the CoreException contains a MultiStatus, and its children will tell you
what the problem is).
--

"Cote, Steve" <steve.cote@xxxxxxxxx> Sent by: eclipse-dev-admin@xxxxxxxxxxx 09/18/2003 02:45 PM Please respond to eclipse-dev

To:        "'eclipse-dev@xxxxxxxxxxx'" <eclipse-dev@xxxxxxxxxxx>         cc:                 Subject:        [eclipse-dev] Problem Adding NatureIds to JavaProjects

I am creating a plugin in eclipse 2.1.1 that
will create a template project for developers. It will create all the directories
and files needed for a simple project saving the time it takes to copy
an existing project over and initializing everything. I am having problems
adding a Nature Id to a project when I try to set the updated project description
in the existing project
 
The extension point in my plugin.xml is as
follows:
 
  <extension
    id="com.qwest.bus.busnature"
    name="BusConnector
Nature"
    point="org.eclipse.core.resources.natures">
    <runtime>
     
<run 
       
class="com.qwest.bus.BusProject">
     
</run>
    </runtime>
  </extension>
 
 
The method in question is:
 
  public
static
void
addNatureToProject( IProject project, String natureId ) throws
CoreException
  {
    Log.debug( "BusPlugin.addNatureToProject("
+ project + ",
" + natureId + ")"
);
 
    IProject proj =
project.getProject();
    Log.debug( "BusPlugin.addNatureToProject()
got project '" + proj + "'"
);
 
    //
Add nature only if it is not already there
    if(
!proj.hasNature(natureId) )
    {
      Log.debug(
"BusPlugin.addNatureToProject()
adding nature '" + natureId
+ "' to "
+ project );
      IProjectDescription
description = proj.getDescription();
      String[]
currentNatures = description.getNatureIds();
      String[]
newNatures = new
String[currentNatures.length + 1];
      System.arraycopy(
currentNatures, 0, newNatures, 0, currentNatures.length );
      newNatures[currentNatures.length]
= natureId;
      description.setNatureIds(
newNatures );
      try
      {
       
StringBuffer buf = new
StringBuffer("Project
status:\r\n");
       
buf.append("
isAccessible: ");buf.append(
proj.isAccessible());buf.append( "\r\n");
       
buf.append("
isDerived: ");buf.append( proj.isDerived());buf.append(
"\r\n");
       
buf.append("
isLinked: ");buf.append( proj.isLinked());buf.append(
"\r\n");
       
buf.append("
isLocal: ");buf.append( proj.isLocal(0));buf.append(
"\r\n");
       
buf.append("
isNatureEnabled: ");buf.append(
proj.isNatureEnabled(natureId));buf.append( "\r\n");
       
buf.append("
isOpen: ");buf.append( proj.isOpen());buf.append(
"\r\n");
       
buf.append("
isPhantom: ");buf.append( proj.isPhantom());buf.append(
"\r\n");
       
buf.append("
isReadOnly: ");buf.append(
proj.isReadOnly());buf.append( "\r\n");
       
buf.append("
isSynchronized: ");buf.append(
proj.isSynchronized(0));buf.append( "\r\n");
       
buf.append("
isTeamPrivateMember: ");buf.append(
proj.isTeamPrivateMember());buf.append( "\r\n");
       
Log.debug( buf.toString() );
       

       
proj.setDescription( description, null
);
       
Log.debug( "BusPlugin.addNatureToProject()
there are now "+newNatures.length+"
current natures" );
      }
      catch
(CoreException e)
      {
       
Log.err("D'oh!
"+e.getMessage());
       
e.printStackTrace();
      }
    }
    else
    {
      Log.debug(
"BusPlugin.addNatureToProject()
nature '" + natureId + "'
is already associated to this project"
);
    }
  }
 
 
 
And here is the log that I'm generating:
 
DEBUG[30524:0] main | Thu
Sep 18 14:35:12 EDT 2003 | BusProject.setting nature id 'com.qwest.bus.busnature'
DEBUG[30524:0] main | Thu
Sep 18 14:35:12 EDT 2003 | BusPlugin.addNatureToProject(P/TestProject,
com.qwest.bus.busnature)
DEBUG[30524:0] main | Thu
Sep 18 14:35:12 EDT 2003 | BusPlugin.addNatureToProject() got project 'P/TestProject'
DEBUG[30534:10] main | Thu
Sep 18 14:35:12 EDT 2003 | BusPlugin.addNatureToProject() adding nature
'com.qwest.bus.busnature' to P/TestProject
DEBUG[30544:10] main | Thu
Sep 18 14:35:12 EDT 2003 | Project status:
 isAccessible: true
 isDerived: false
 isLinked: false
 isLocal: true
 isNatureEnabled: false
 isOpen: true
 isPhantom: false
 isReadOnly: false
 isSynchronized: true
 isTeamPrivateMember:
false
 
ERROR[30544:0] main | Thu
Sep 18 14:35:12 EDT 2003 | D'oh! Problems encountered while setting project
description.
org.eclipse.core.runtime.CoreException:
Problems encountered while setting project description.
     
at org.eclipse.core.internal.resources.Project.setDescription(Project.java:805)
     
at org.eclipse.core.internal.resources.Project.setDescription(Project.java:829)
     
at com.qwest.bus.BusPlugin.addNatureToProject(BusPlugin.java:228)
     
at com.qwest.bus.BusProject.addBusNatureToProject(BusProject.java:170)
     
at com.qwest.bus.BusProjectCreationWizard.performFinish(BusProjectCreationWizard.java:168)
     
at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:608)
--[snip]--
 
 
 
What am I missing / doing wrong?
 
Thanks in advance for any help received.
 
 
-Steve Coté