| /* |
| * Copyright (C) 2013 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.sdklib; |
| |
| import com.android.annotations.NonNull; |
| import com.android.annotations.Nullable; |
| |
| |
| |
| /** |
| * Helper methods to manipulate hash strings used by {@link IAndroidTarget#hashString()}. |
| */ |
| public abstract class AndroidTargetHash { |
| |
| /** |
| * Prefix used to build hash strings for platform targets |
| * @see SdkManager#getTargetFromHashString(String) |
| */ |
| private static final String PLATFORM_HASH_PREFIX = "android-"; |
| |
| /** |
| * String to compute hash for add-on targets. |
| * Format is vendor:name:apiVersion |
| * */ |
| public static final String ADD_ON_FORMAT = "%s:%s:%s"; //$NON-NLS-1$ |
| |
| /** |
| * String used to get a hash to the platform target. |
| * This format is compatible with the PlatformPackage.installId(). |
| */ |
| static final String PLATFORM_HASH = PLATFORM_HASH_PREFIX + "%s"; |
| |
| /** |
| * Returns the hash string for a given platform version. |
| * |
| * @param version A non-null platform version. |
| * @return A non-null hash string uniquely representing this platform target. |
| */ |
| @NonNull |
| public static String getPlatformHashString(@NonNull AndroidVersion version) { |
| return String.format(AndroidTargetHash.PLATFORM_HASH, version.getApiString()); |
| } |
| |
| /** |
| * Returns the {@link com.android.sdklib.AndroidVersion} for the given hash string, |
| * if it represents a platform. If the hash string represents a preview platform, |
| * the returned {@link AndroidVersion} will have an unknown API level (set to 1). |
| * |
| * @param hashString the hash string |
| * @return a platform, or null |
| */ |
| @Nullable |
| public static AndroidVersion getPlatformVersion(@NonNull String hashString) { |
| if (hashString.startsWith(PLATFORM_HASH_PREFIX)) { |
| String suffix = hashString.substring(PLATFORM_HASH_PREFIX.length()); |
| if (!suffix.isEmpty()) { |
| if (Character.isDigit(suffix.charAt(0))) { |
| int api = Integer.parseInt(suffix); |
| return new AndroidVersion(api, null); |
| } else { |
| return new AndroidVersion(1, suffix); |
| } |
| } |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Returns the hash string for a given add-on. |
| * |
| * @param addonVendor A non-null |
| * @param addonName |
| * @param version A non-null platform version (the addon's base platform version) |
| * @return A non-null hash string uniquely representing this add-on target. |
| */ |
| public static String getAddonHashString( |
| @NonNull String addonVendor, |
| @NonNull String addonName, |
| @NonNull AndroidVersion version) { |
| return String.format(ADD_ON_FORMAT, |
| addonVendor, |
| addonName, |
| version.getApiString()); |
| } |
| |
| /** |
| * Returns the hash string for a given target (add-on or platform.) |
| * |
| * @param target A non-null target. |
| * @return A non-null hash string uniquely representing this target. |
| */ |
| public static String getTargetHashString(@NonNull IAndroidTarget target) { |
| if (target.isPlatform()) { |
| return getPlatformHashString(target.getVersion()); |
| } else { |
| return getAddonHashString( |
| target.getVendor(), |
| target.getName(), |
| target.getVersion()); |
| } |
| } |
| |
| /** |
| * Given a hash string, indicates whether this is a platform hash string. |
| * If not, it's an addon hash string. |
| * |
| * @param hashString The hash string to test. |
| * @return True if this hash string starts by the platform prefix. |
| */ |
| public static boolean isPlatform(@NonNull String hashString) { |
| return hashString.startsWith(PLATFORM_HASH_PREFIX); |
| } |
| |
| } |