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Commit 170611dc authored by Arthur Ishiguro's avatar Arthur Ishiguro
Browse files

Creates utility functions to convert between messages 

Will be needed to convert between client-facing and HIDL messages
to/from nanoapps.

Bug: 67734082
Test: make from root
Change-Id: Id0ece7600a653a0ede6d92d9ebbe8dfdc3489207
parent 6cc8d47c

services/core/java/com/android/server/location/ContextHubServiceUtil.java

+37 −0
Original line number Diff line number Diff line
@@ -17,9 +17,12 @@ 
package com.android.server.location;



import android.hardware.contexthub.V1_0.ContextHub;

import android.hardware.contexthub.V1_0.ContextHubMsg;

import android.hardware.contexthub.V1_0.HostEndPoint;

import android.hardware.contexthub.V1_0.HubAppInfo;

import android.hardware.location.ContextHubInfo;

import android.hardware.location.NanoAppBinary;

import android.hardware.location.NanoAppMessage;

import android.hardware.location.NanoAppState;

import android.util.Log;
@@ -128,4 +131,38 @@ import java.util.ArrayList; 


        return nanoAppStateList;

    }



    /**

     * Creates a HIDL ContextHubMsg object to send to a nanoapp.

     *

     * @param hostEndPoint the ID of the client sending the message

     * @param message      the client-facing NanoAppMessage object describing the message

     * @return the HIDL ContextHubMsg object

     */

    /* package */

    static ContextHubMsg createHidlContextHubMessage(short hostEndPoint, NanoAppMessage message) {

        ContextHubMsg hidlMessage = new ContextHubMsg();



        hidlMessage.appName = message.getNanoAppId();

        hidlMessage.hostEndPoint = hostEndPoint;

        hidlMessage.msgType = message.getMessageType();

        copyToByteArrayList(message.getMessageBody(), hidlMessage.msg);



        return hidlMessage;

    }



    /**

     * Creates a client-facing NanoAppMessage object to send to a client.

     *

     * @param message the HIDL ContextHubMsg object from a nanoapp

     * @return the NanoAppMessage object

     */

    /* package */

    static NanoAppMessage createNanoAppMessage(ContextHubMsg message) {

        byte[] messageArray = createPrimitiveByteArray(message.msg);



        return NanoAppMessage.createMessageFromNanoApp(

                message.appName, message.msgType, messageArray,

                message.hostEndPoint == HostEndPoint.BROADCAST);

    }

}