/*
* Copyright 2003-2014 JetBrains s.r.o.
*
* Licensed 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 jetbrains.mps.workbench;
import com.intellij.openapi.vfs.VirtualFile;
import jetbrains.mps.extapi.persistence.FileSystemBasedDataSource;
import jetbrains.mps.ide.vfs.VirtualFileUtils;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.mps.openapi.model.SModel;
import jetbrains.mps.vfs.IFile;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.mps.openapi.persistence.DataSource;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
public final class FileSystemModelHelper {
private static final Logger LOG = LogManager.getLogger(FileSystemModelHelper.class);
private final SModel myModel;
public FileSystemModelHelper(@NotNull SModel model) {
myModel = model;
}
@NotNull
public Collection<IFile> getFiles() {
List<IFile> result = new ArrayList<IFile>();
DataSource source = myModel.getSource();
if ((source instanceof FileSystemBasedDataSource)) {
FileSystemBasedDataSource fsDataSource = (FileSystemBasedDataSource) source;
result.addAll(fsDataSource.getAffectedFiles());
}
return result;
}
@NotNull
public Collection<VirtualFile> getVirtualFiles() {
List<VirtualFile> vFiles = new ArrayList<VirtualFile>();
Collection<IFile> modelPaths = getFiles();
for (IFile path : modelPaths) {
VirtualFile virtualFile = VirtualFileUtils.getOrCreateVirtualFile(path);
if (virtualFile != null) {
vFiles.add(virtualFile);
}
}
return vFiles;
}
@Nullable
public VirtualFile getVirtualFile() {
Collection<VirtualFile> files = getVirtualFiles();
if (files.isEmpty()) {
return null;
} else if (files.size() > 1) {
LOG.warn("Models with multiple files in the data source are not supported; DataSource :" + myModel.getSource());
return null;
}
return files.iterator().next();
}
}