/*
* Copyright 2003-2016 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.extapi.persistence.datasource;
import jetbrains.mps.extapi.persistence.FileDataSource;
import jetbrains.mps.persistence.FilePerRootDataSource;
import jetbrains.mps.project.MPSExtentions;
import jetbrains.mps.util.annotation.ToRemove;
import jetbrains.mps.vfs.Files;
import jetbrains.mps.vfs.IFile;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.mps.annotations.Immutable;
import org.jetbrains.mps.openapi.persistence.DataSource;
import org.jetbrains.mps.openapi.persistence.ModelRoot;
import org.jetbrains.mps.openapi.persistence.datasource.DataSourceType;
import java.net.URL;
/**
* Bundled data source factories by default.
*
* @author apyshkin
* @since 29/12/16
*/
@Immutable
public enum PreinstalledURLDataSourceFactories implements DataSourceFactoryFromURL {
FILE_OR_FOLDER;
@NotNull
@Override
public DataSource create(@NotNull URL url,
@ToRemove(version = 0)
@Nullable ModelRoot modelRoot) throws URLNotSupportedException {
if (!supports(url)) {
throw new URLNotSupportedException(this, url);
}
IFile file = Files.fromURL(url);
return createFromFile(file, modelRoot);
}
// fixme elaborate
@Override
public boolean supports(@NotNull URL url) {
return true;
}
@NotNull
public DataSource createFromFile(@NotNull IFile file, @Nullable ModelRoot modelRoot) {
if (file.exists() && file.isDirectory()) {
return createPerRootDS(file, modelRoot);
} else if (file.getPath().endsWith(MPSExtentions.DOT_MODEL_ROOT)) {
return createPerRootDS(file.getParent(), modelRoot);
} else if (file.getPath().endsWith(MPSExtentions.DOT_MODEL_HEADER)) {
return createPerRootDS(file.getParent(), modelRoot);
}
return new FileDataSource(file, modelRoot);
}
// redundant branch, will go away with the {@link FilePerRootDataSource}
// this must happen on the model factory side
@NotNull
private DataSource createPerRootDS(@NotNull IFile file, @Nullable ModelRoot modelRoot) {
return new FilePerRootDataSource(file, modelRoot);
}
}