/*
* 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 org.jetbrains.mps.openapi.persistence.datasource;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.mps.annotations.Immutable;
import java.util.Objects;
/**
* A data source type based on the file name extension
* This type allows us to associate the corresponding data sources
* with various model factories.
*
* @author apyshkin
* @since 29/12/16
*/
@Immutable
public final class FileExtensionDataSourceType implements DataSourceType {
private static final String DOT = ".";
private final String myFileExtension;
private FileExtensionDataSourceType(@Nullable String fileExtension) {
if (fileExtension != null && fileExtension.contains(DOT)) {
throw new IllegalArgumentException("File Extension String Must Not Contain DOTS : " + fileExtension);
}
myFileExtension = fileExtension;
}
@NotNull
public static FileExtensionDataSourceType of(@Nullable String fileExtension) {
return new FileExtensionDataSourceType(fileExtension);
}
@NotNull
public String getFileExtension() {
return myFileExtension;
}
@Override
public boolean equals(Object o) {
if (o instanceof FileExtensionDataSourceType) {
FileExtensionDataSourceType that = (FileExtensionDataSourceType) o;
return Objects.equals(myFileExtension, that.myFileExtension);
}
return false;
}
@Override
public int hashCode() {
return myFileExtension.hashCode();
}
@Override
public String toString() {
return getName();
}
@NotNull
@Override
public String getName() {
return "File Data Source Type : [file extension = '" + myFileExtension + "']";
}
}