/*
* Copyright 2016-present Facebook, Inc.
*
* 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 com.facebook.buck.jvm.java;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableMap;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Map;
public class ClassUsageFileWriterSerializer {
private ClassUsageFileWriterSerializer() {}
private static final String TYPE = "type";
private static final String TYPE_DEFAULT = "type_default";
private static final String TYPE_NOOP = "type_noop";
private static final String RELATIVE_PATH = "relative_path";
public static ImmutableMap<String, Object> serialize(ClassUsageFileWriter writer) {
ImmutableMap.Builder<String, Object> builder = ImmutableMap.builder();
if (writer instanceof DefaultClassUsageFileWriter) {
builder.put(TYPE, TYPE_DEFAULT);
builder.put(
RELATIVE_PATH, ((DefaultClassUsageFileWriter) writer).getRelativePath().toString());
} else if (writer instanceof NoOpClassUsageFileWriter) {
builder.put(TYPE, TYPE_NOOP);
} else {
throw new UnsupportedOperationException(
String.format("Cannot serialize ClassUsageFileWriter with class: %s", writer.getClass()));
}
return builder.build();
}
public static ClassUsageFileWriter deserialize(Map<String, Object> data) {
String type = (String) data.get(TYPE);
Preconditions.checkNotNull(type);
if (type.equals(TYPE_DEFAULT)) {
Preconditions.checkArgument(data.containsKey(RELATIVE_PATH));
Path relativePath = Paths.get((String) data.get(RELATIVE_PATH));
return new DefaultClassUsageFileWriter(relativePath);
} else if (type.equals(TYPE_NOOP)) {
return NoOpClassUsageFileWriter.instance();
} else {
throw new RuntimeException(
String.format("Cannot deserialize ClassUsageFileWriter with type: %s", type));
}
}
}