src/main/java/com/android/apkzlib/zip/AlignmentRule.java


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/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * 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.android.apkzlib.zip;

import javax.annotation.Nonnull;

/**
 * An alignment rule defines how to a file should be aligned in a zip, based on its name.
 */
public interface AlignmentRule {

    /**
     * Alignment value of files that do not require alignment.
     */
    int NO_ALIGNMENT = 1;

    /**
     * Obtains the alignment this rule computes for a given path.
     *
     * @param path the path in the zip file
     * @return the alignment value, always greater than {@code 0}; if this rule places no
     * restrictions on the provided path, then {@link AlignmentRule#NO_ALIGNMENT} is returned
     */
    int alignment(@Nonnull String path);
}