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// Copyright 2016 The Bazel Authors. All rights reserved.
//
// 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.google.devtools.build.android;
import java.io.IOException;
import java.io.OutputStream;
/**
* A general interface for resource and asset keys.
*
* <p>Resource and Assets are merged on the basis of a key value:
*
* <p>For Resources, this is the fully qualified name, consisting of the resource package, name,
* type, and qualifiers.
*
* <p>For Assets, it is the asset path from the assets directory.
*/
public interface DataKey extends Comparable<DataKey> {
/**
* Writes the Key and the value size to a stream.
*
* @param output The destination stream to serialize the key.
* @param valueSize The size, in bytes, of the serialized output for this key. The value size can
* be used for calculating offsets of the value in the stream.
*/
void serializeTo(OutputStream output, int valueSize) throws IOException;
/** Returns a human readable string representation of the key. */
String toPrettyString();
/** Defines a total ordering on the different key types to assist in compareTo operations. */
enum KeyType {
ASSET_PATH,
FULL_QUALIFIED_NAME
}
KeyType getKeyType();
}
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