Ashutosh Joshi | 1d1ac54 | 2016-01-18 17:19:27 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.hardware.location; |
| 18 | |
| 19 | |
| 20 | import android.annotation.SystemApi; |
| 21 | import android.os.Parcel; |
| 22 | import android.os.Parcelable; |
| 23 | |
| 24 | /** |
| 25 | * @hide |
| 26 | */ |
| 27 | @SystemApi |
| 28 | public class NanoAppFilter { |
| 29 | |
| 30 | // The appId, can be set to APP_ID_ANY |
| 31 | private long mAppId; |
| 32 | |
| 33 | // Version to filter apps |
| 34 | private int mAppVersion; |
| 35 | |
| 36 | // filtering spec for version |
| 37 | private int mVersionRestrictionMask; |
| 38 | |
| 39 | // If APP_ID is any, then a match is performef with the vendor mask |
| 40 | private long mAppIdVendorMask; |
| 41 | |
| 42 | // Id of the context hub this instance is expected on |
| 43 | private int mContextHubId; |
| 44 | |
| 45 | /** |
| 46 | * Flag indicating any version. With this flag set, all versions shall match provided version. |
| 47 | */ |
| 48 | public static final int FLAGS_VERSION_ANY = -1; |
| 49 | /** |
| 50 | * If this flag is set, only versions strictly greater than the version specified shall match. |
| 51 | */ |
| 52 | public static final int FLAGS_VERSION_GREAT_THAN = 2; |
| 53 | /** |
| 54 | * If this flag is set, only versions strictly less than the version specified shall match. |
| 55 | */ |
| 56 | public static final int FLAGS_VERSION_LESS_THAN = 4; |
| 57 | public static final int FLAGS_VERSION_STRICTLY_EQUAL = 8; |
| 58 | |
| 59 | /** |
| 60 | * If this flag is set, only versions strictly equal to the version specified shall match. |
| 61 | */ |
| 62 | public static final int APP_ANY = -1; |
| 63 | |
| 64 | /** |
| 65 | * If this flag is set, all vendors shall match. |
| 66 | */ |
| 67 | public static final int VENDOR_ANY = -1; |
| 68 | |
| 69 | /** |
| 70 | * If this flag is set, any hub shall match. |
| 71 | */ |
| 72 | public static final int HUB_ANY = -1; |
| 73 | |
| 74 | private NanoAppFilter(Parcel in) { |
| 75 | mAppId = in.readLong(); |
| 76 | mAppVersion = in.readInt(); |
| 77 | mVersionRestrictionMask = in.readInt(); |
| 78 | mAppIdVendorMask = in.readInt(); |
| 79 | } |
| 80 | |
| 81 | public int describeContents() { |
| 82 | return 0; |
| 83 | } |
| 84 | |
| 85 | public void writeToParcel(Parcel out, int flags) { |
| 86 | |
| 87 | out.writeLong(mAppId); |
| 88 | out.writeInt(mAppVersion); |
| 89 | out.writeInt(mVersionRestrictionMask); |
| 90 | out.writeLong(mAppIdVendorMask); |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Create a filter |
| 95 | * |
| 96 | * @param appId application id |
| 97 | * @param appVersion application version |
| 98 | * @param versionMask version |
| 99 | * @param vendorMask vendor |
| 100 | */ |
| 101 | public NanoAppFilter(long appId, int appVersion, int versionMask, long vendorMask) { |
| 102 | mAppId = appId; |
| 103 | mAppVersion = appVersion; |
| 104 | mVersionRestrictionMask = versionMask; |
| 105 | mAppIdVendorMask = vendorMask; |
| 106 | } |
| 107 | |
| 108 | private boolean versionsMatch(int versionRestrictionMask, int expected, int actual){ |
| 109 | // some refactoring of version restriction mask is needed, until then, return all |
| 110 | return true; |
| 111 | } |
| 112 | /** |
Peng Xu | 9ff7d22 | 2016-02-11 13:02:05 -0800 | [diff] [blame] | 113 | * Test match method. |
Ashutosh Joshi | 1d1ac54 | 2016-01-18 17:19:27 -0800 | [diff] [blame] | 114 | * |
Peng Xu | 9ff7d22 | 2016-02-11 13:02:05 -0800 | [diff] [blame] | 115 | * @param info nano app instance info |
Ashutosh Joshi | 1d1ac54 | 2016-01-18 17:19:27 -0800 | [diff] [blame] | 116 | * |
| 117 | * @return true if this is a match, false otherwise |
| 118 | */ |
| 119 | public boolean testMatch(NanoAppInstanceInfo info) { |
| 120 | if ((mContextHubId == HUB_ANY || info.getContexthubId() == mContextHubId) && |
| 121 | (mAppId == APP_ANY || info.getAppId() == mAppId) && |
| 122 | // (mAppIdVendorMask == VENDOR_ANY) TODO : Expose Vendor mask cleanly |
| 123 | (versionsMatch(mVersionRestrictionMask, mAppVersion, info.getAppVersion()))) { |
| 124 | return true; |
| 125 | } else { |
| 126 | return false; |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | public static final Parcelable.Creator<NanoAppFilter> CREATOR |
| 131 | = new Parcelable.Creator<NanoAppFilter>() { |
| 132 | public NanoAppFilter createFromParcel(Parcel in) { |
| 133 | return new NanoAppFilter(in); |
| 134 | } |
| 135 | |
| 136 | public NanoAppFilter[] newArray(int size) { |
| 137 | return new NanoAppFilter[size]; |
| 138 | } |
| 139 | }; |
| 140 | } |