Package org.apache.uima.caseditor.ide

Source Code of org.apache.uima.caseditor.ide.CasEditorIdePlugin

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/

package org.apache.uima.caseditor.ide;

import java.io.IOException;
import java.io.InputStream;
import java.util.ResourceBundle;

import org.apache.uima.caseditor.CasEditorPlugin;
import org.apache.uima.caseditor.core.model.dotcorpus.DotCorpus;
import org.apache.uima.caseditor.core.model.dotcorpus.DotCorpusSerializer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.QualifiedName;
import org.eclipse.core.runtime.Status;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

/**
* TODO: add javadoc here
*/
public class CasEditorIdePlugin extends AbstractUIPlugin {
  public static final String ID = "org.apache.uima.caseditor.ide";

  /**
   * The shared instance.
   */
  private static CasEditorIdePlugin sPlugin;

  /**
   * Resource bundle.
   */
  private ResourceBundle mResourceBundle;
 
  /**
   * The constructor.
   */
  public CasEditorIdePlugin() {
    super();

    sPlugin = this;
  }

  /**
   * This method is called upon plug-in activation
   *
   * @param context
   * @throws Exception
   */
  @Override
  public void start(BundleContext context) throws Exception {
      super.start(context);
     
      // Backward compatibility: Migrate old Cas Editor Projects
     
      // Scan for all Nlp nature projects
      IProject projects[] = ResourcesPlugin.getWorkspace().getRoot().getProjects();
     
      for (IProject project : projects) {
        // if nlp nature project
       
        if (project.isOpen() && project.hasNature("org.apache.uima.caseditor.NLPProject")) {
         
          // if ts property is not set ...
          String typeSystemLocation;
          try {
            typeSystemLocation = project.getPersistentProperty(new QualifiedName("",
                TypeSystemLocationPropertyPage.TYPE_SYSTEM_PROPERTY));
          } catch (CoreException e) {
            typeSystemLocation = null;
          }
         
          if (typeSystemLocation == null) {
            // 1. Read dotCorpus
            IFile dotCorpusFile = project.getFile(".corpus");
           
           
            if (dotCorpusFile.exists()) {
             
              InputStream dotCorpusIn = null;
             
              try {
                dotCorpusIn = dotCorpusFile.getContents();
              }
              catch (CoreException e) {
                log(e);
              }
             
              IFile typeSystemFile = null;
              if (dotCorpusIn != null) {
                try {
                  DotCorpus dotCorpus = DotCorpusSerializer.parseDotCorpus(dotCorpusIn);
                 
                  if (dotCorpus.getTypeSystemFileName() != null)
                      typeSystemFile = project.getFile(dotCorpus.getTypeSystemFileName());
                }
                finally {
                  try {
                    dotCorpusIn.close();
                  }
                  catch (IOException e) {
                    log(e);
                  }
                }
              }
             
              if (typeSystemFile != null && typeSystemFile.exists()) {
                // 2. Set type system file accordingly
                TypeSystemLocationPropertyPage.setTypeSystemLocation(project, typeSystemFile.getFullPath().toString());
               
                // 3. Try to copy dotCorpus file to type system location
                try {
                  dotCorpusFile.copy(project.getFile(typeSystemFile.getParent().getProjectRelativePath() + "/"
                          + ".style-" + typeSystemFile.getName()).getFullPath(), true, null);
                  CasEditorPlugin.getDefault().setShowMigrationDialog();
                } catch (CoreException e) {
                  log(e);
                }
              }
            }
          }
        }
      }
    }

  /**
   * This method is called when the plug-in is stopped.
   *
   * @param context
   * @throws Exception
   */
  @Override
  public void stop(BundleContext context) throws Exception {
    super.stop(context);

    sPlugin = null;
    mResourceBundle = null;
  }

  /**
   * Returns the shared instance.
   *
   * @return the TaePlugin
   */
  public static CasEditorIdePlugin getDefault() {
    return sPlugin;
  }

  /**
   * Log the throwable.
   *
   * @param t
   */
  public static void log(Throwable t) {
    getDefault().getLog().log(new Status(IStatus.ERROR, ID, IStatus.OK, t.getMessage(), t));
  }

  public static void logError(String message) {
    getDefault().getLog().log(new Status(IStatus.ERROR, ID, message));
  }
}
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