trunk/ruta-ep-addons/src/main/java/org/apache/uima/ruta/testing/searchStrategy/TestingSearchStrategy.java

/*
 * 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.ruta.testing.searchStrategy;

import org.apache.uima.caseditor.ide.searchstrategy.ITypeSystemSearchStrategy;
import org.apache.uima.ruta.ide.core.RutaNature;
import org.apache.uima.ruta.ide.core.builder.RutaProjectUtils;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IProjectNature;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;

public class TestingSearchStrategy implements ITypeSystemSearchStrategy {

  public IFile findTypeSystem(IFile casFile) {
    IPath location = casFile.getLocation();
    IProject project = casFile.getProject();

    try {
      IProjectNature nature = project.getNature(RutaNature.NATURE_ID);
      if (!(nature instanceof RutaNature)) {
        return null;
      }
    } catch (CoreException e) {
      return null;
    }

    IFolder testFolder = project.getFolder(RutaProjectUtils.getDefaultTestLocation());
    IFolder descFolder = project.getFolder(RutaProjectUtils.getDefaultDescriptorLocation());
    IPath relativeTo = location.makeRelativeTo(testFolder.getLocation());
    IPath segments = relativeTo.removeLastSegments(2);
    String scriptName = segments.lastSegment();
    if(scriptName == null) {
      return null;
    }
    scriptName += "TypeSystem.xml";
    segments = segments.removeLastSegments(1);
    IFolder descPackageFolder = null;
    try {
      descPackageFolder = descFolder.getFolder(segments);
    } catch (Exception e) {
      return null;
    }
    if (descPackageFolder == null || !descPackageFolder.exists()) {
      return null;
    }
    IFile result = descPackageFolder.getFile(scriptName);
    if (result == null || !result.exists()) {
      return null;
    }
    return result;
  }

}