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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 android.hardware.location;
import android.annotation.SystemApi;
import android.os.Parcel;
import android.os.Parcelable;
import android.util.Log;
/**
* @hide
*/
@SystemApi
public class NanoAppFilter {
private static final String TAG = "NanoAppFilter";
// The appId, can be set to APP_ID_ANY
private long mAppId;
// Version to filter apps
private int mAppVersion;
// filtering spec for version
private int mVersionRestrictionMask;
// If APP_ID is any, then a match is performef with the vendor mask
private long mAppIdVendorMask;
// Id of the context hub this instance is expected on
// TODO: Provide an API which will let us change this HubId.
private int mContextHubId = HUB_ANY;
/**
* Flag indicating any version. With this flag set, all versions shall match provided version.
*/
public static final int FLAGS_VERSION_ANY = -1;
/**
* If this flag is set, only versions strictly greater than the version specified shall match.
*/
public static final int FLAGS_VERSION_GREAT_THAN = 2;
/**
* If this flag is set, only versions strictly less than the version specified shall match.
*/
public static final int FLAGS_VERSION_LESS_THAN = 4;
/**
* If this flag is set, only versions strictly equal to the
* version specified shall match.
*/
public static final int FLAGS_VERSION_STRICTLY_EQUAL = 8;
/**
* If this flag is set, only versions strictly equal to the version specified shall match.
*/
public static final int APP_ANY = -1;
/**
* If this flag is set, all vendors shall match.
*/
public static final int VENDOR_ANY = -1;
/**
* If this flag is set, any hub shall match.
*/
public static final int HUB_ANY = -1;
private NanoAppFilter(Parcel in) {
mAppId = in.readLong();
mAppVersion = in.readInt();
mVersionRestrictionMask = in.readInt();
mAppIdVendorMask = in.readInt();
}
public int describeContents() {
return 0;
}
public void writeToParcel(Parcel out, int flags) {
out.writeLong(mAppId);
out.writeInt(mAppVersion);
out.writeInt(mVersionRestrictionMask);
out.writeLong(mAppIdVendorMask);
}
/**
* Create a filter
*
* @param appId application id
* @param appVersion application version
* @param versionMask version
* @param vendorMask vendor
*/
public NanoAppFilter(long appId, int appVersion, int versionMask, long vendorMask) {
mAppId = appId;
mAppVersion = appVersion;
mVersionRestrictionMask = versionMask;
mAppIdVendorMask = vendorMask;
}
private boolean versionsMatch(int versionRestrictionMask, int expected, int actual){
// some refactoring of version restriction mask is needed, until then, return all
return true;
}
/**
* Test match method.
*
* @param info nano app instance info
*
* @return true if this is a match, false otherwise
*/
public boolean testMatch(NanoAppInstanceInfo info) {
return (mContextHubId == HUB_ANY || info.getContexthubId() == mContextHubId) &&
(mAppId == APP_ANY || info.getAppId() == mAppId) &&
(versionsMatch(mVersionRestrictionMask, mAppVersion, info.getAppVersion()));
}
public static final Parcelable.Creator<NanoAppFilter> CREATOR
= new Parcelable.Creator<NanoAppFilter>() {
public NanoAppFilter createFromParcel(Parcel in) {
return new NanoAppFilter(in);
}
public NanoAppFilter[] newArray(int size) {
return new NanoAppFilter[size];
}
};
}
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