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/*
* Copyright 2017 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.NonNull;
import android.annotation.SystemApi;
import android.os.Parcel;
import android.os.Parcelable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
/**
* A class describing the nanoapp state information resulting from a query to a Context Hub
* through {@link ContextHubManager.queryNanoApps(ContextHubInfo)}. It contains metadata about
* the nanoapp running on a Context Hub.
*
* See "struct chreNanoappInfo" in the CHRE API (system/chre/chre_api) for additional details.
*
* @hide
*/
@SystemApi
public final class NanoAppState implements Parcelable {
private long mNanoAppId;
private int mNanoAppVersion;
private boolean mIsEnabled;
private List<String> mNanoAppPermissions = new ArrayList<String>();
private List<NanoAppRpcService> mNanoAppRpcServiceList =
new ArrayList<NanoAppRpcService>();
/**
* @param nanoAppId The unique ID of this nanoapp, see {#getNanoAppId()}.
* @param appVersion The software version of this nanoapp, see {#getNanoAppVersion()}.
* @param enabled True if the nanoapp is enabled and running on the Context Hub.
*/
public NanoAppState(long nanoAppId, int appVersion, boolean enabled) {
mNanoAppId = nanoAppId;
mNanoAppVersion = appVersion;
mIsEnabled = enabled;
}
/**
* @param nanoAppId The unique ID of this nanoapp, see {#getNanoAppId()}.
* @param appVersion The software version of this nanoapp, see {#getNanoAppVersion()}.
* @param enabled True if the nanoapp is enabled and running on the Context Hub.
* @param nanoAppPermissions The list of permissions required to communicate with this
* nanoapp.
*/
public NanoAppState(long nanoAppId, int appVersion, boolean enabled,
@NonNull List<String> nanoAppPermissions) {
mNanoAppId = nanoAppId;
mNanoAppVersion = appVersion;
mIsEnabled = enabled;
mNanoAppPermissions = Collections.unmodifiableList(nanoAppPermissions);
}
/**
* @param nanoAppId The unique ID of this nanoapp, see {#getNanoAppId()}.
* @param appVersion The software version of this nanoapp, see {#getNanoAppVersion()}.
* @param enabled True if the nanoapp is enabled and running on the Context Hub.
* @param nanoAppPermissions The list of permissions required to communicate with this
* nanoapp.
* @param nanoAppRpcServiceList The list of RPC services published by this nanoapp, see
* {@link NanoAppRpcService} for additional details.
*/
public NanoAppState(long nanoAppId, int appVersion, boolean enabled,
@NonNull List<String> nanoAppPermissions,
@NonNull List<NanoAppRpcService> nanoAppRpcServiceList) {
mNanoAppId = nanoAppId;
mNanoAppVersion = appVersion;
mIsEnabled = enabled;
mNanoAppPermissions = Collections.unmodifiableList(nanoAppPermissions);
mNanoAppRpcServiceList = Collections.unmodifiableList(nanoAppRpcServiceList);
}
/**
* @return the unique ID of this nanoapp, which must never change once released on Android.
*/
public long getNanoAppId() {
return mNanoAppId;
}
/**
* The software version of this service, which follows the sematic
* versioning scheme (see semver.org). It follows the format
* major.minor.patch, where major and minor versions take up one byte
* each, and the patch version takes up the final 2 (lower) bytes.
* I.e. the version is encoded as 0xMMmmpppp, where MM, mm, pppp are
* the major, minor, patch versions, respectively.
*
* @return the app version
*/
public long getNanoAppVersion() {
return mNanoAppVersion;
}
/**
* @return {@code true} if the app is enabled at the Context Hub, {@code false} otherwise
*/
public boolean isEnabled() {
return mIsEnabled;
}
/**
* @return A read-only list of Android permissions that are all required to communicate with
* this nanoapp.
*/
public @NonNull List<String> getNanoAppPermissions() {
return mNanoAppPermissions;
}
/**
* @return A read-only list of RPC services supported by this nanoapp.
*/
public @NonNull List<NanoAppRpcService> getRpcServices() {
return mNanoAppRpcServiceList;
}
private NanoAppState(Parcel in) {
mNanoAppId = in.readLong();
mNanoAppVersion = in.readInt();
mIsEnabled = (in.readInt() == 1);
mNanoAppPermissions = new ArrayList<String>();
in.readStringList(mNanoAppPermissions);
mNanoAppRpcServiceList = Collections.unmodifiableList(
Arrays.asList(in.readParcelableArray(
NanoAppRpcService.class.getClassLoader(), NanoAppRpcService.class)));
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel out, int flags) {
out.writeLong(mNanoAppId);
out.writeInt(mNanoAppVersion);
out.writeInt(mIsEnabled ? 1 : 0);
out.writeStringList(mNanoAppPermissions);
out.writeParcelableArray(mNanoAppRpcServiceList.toArray(new NanoAppRpcService[0]), 0);
}
public static final @android.annotation.NonNull Creator<NanoAppState> CREATOR =
new Creator<NanoAppState>() {
@Override
public NanoAppState createFromParcel(Parcel in) {
return new NanoAppState(in);
}
@Override
public NanoAppState[] newArray(int size) {
return new NanoAppState[size];
}
};
}
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