| /* |
| * Copyright (C) 2019 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.google.android.car.diagnostictools.utils; |
| |
| import android.content.Context; |
| import android.util.Log; |
| |
| import com.google.android.car.diagnostictools.R; |
| |
| import org.json.JSONException; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| |
| /** Singleton class that contains all available metadata information */ |
| public class MetadataProcessing { |
| |
| private static final String TAG = "MetadataProcessing"; |
| private static MetadataProcessing sInstance = null; |
| |
| private Map<Integer, SensorMetadata> mFloatMetadata = new HashMap<>(); |
| private Map<Integer, SensorMetadata> mIntegerMetadata = new HashMap<>(); |
| private Map<String, DTCMetadata> mDTCMetadataMap = new HashMap<>(); |
| private Map<String, String> mECUMetadataMap = new HashMap<>(); |
| |
| /** |
| * Creates a MetadataProcessing object using a context to access files in res/raw |
| * |
| * @param context Any context object. Used to access files in res/raw |
| */ |
| private MetadataProcessing(Context context) { |
| // DTC Metadata |
| try { |
| mDTCMetadataMap = |
| JsonMetadataReader.readDTCsFromJson( |
| context.getResources().openRawResource(R.raw.system_dtcs)); |
| } catch (IOException | JSONException e) { |
| Log.d( |
| TAG, |
| "Error reading in JSON Metadata for system DTCs. More info: " + e.toString()); |
| } |
| try { |
| mDTCMetadataMap.putAll( |
| JsonMetadataReader.readDTCsFromJson( |
| context.getResources().openRawResource(R.raw.vendor_dtcs))); |
| } catch (IOException | JSONException e) { |
| Log.d( |
| TAG, |
| "Error reading in JSON Metadata for vendor DTCs. More info: " + e.toString()); |
| } |
| |
| // Float Metadata |
| try { |
| mFloatMetadata = |
| JsonMetadataReader.readFloatSensorIndexFromJson( |
| context.getResources().openRawResource(R.raw.system_float_sensors)); |
| } catch (IOException | JSONException e) { |
| Log.e( |
| TAG, |
| "Error reading in JSON Metadata for system float sensors. More info: " |
| + e.toString()); |
| } |
| try { |
| mFloatMetadata.putAll( |
| JsonMetadataReader.readFloatSensorIndexFromJson( |
| context.getResources().openRawResource(R.raw.vendor_float_sensors))); |
| } catch (IOException | JSONException e) { |
| Log.e( |
| TAG, |
| "Error reading in JSON Metadata for vendor float sensors. More info: " |
| + e.toString()); |
| } |
| |
| // Integer Metadata |
| try { |
| mIntegerMetadata = |
| JsonMetadataReader.readIntegerSensorIndexFromJson( |
| context.getResources().openRawResource(R.raw.system_integer_sensors)); |
| } catch (IOException | JSONException e) { |
| Log.e( |
| TAG, |
| "Error reading in JSON Metadata for system integer sensors. More info: " |
| + e.toString()); |
| } |
| try { |
| mIntegerMetadata.putAll( |
| JsonMetadataReader.readIntegerSensorIndexFromJson( |
| context.getResources().openRawResource(R.raw.vendor_integer_sensors))); |
| } catch (IOException | JSONException e) { |
| Log.e( |
| TAG, |
| "Error reading in JSON Metadata for vendor integer sensors. More info: " |
| + e.toString()); |
| } |
| |
| // ECU Metadata |
| try { |
| mECUMetadataMap = |
| JsonMetadataReader.readECUsFromJson( |
| context.getResources().openRawResource(R.raw.vendor_ecus)); |
| } catch (IOException | JSONException e) { |
| Log.e(TAG, "Error reading in JSON Metadata for ECUs. More info: " + e.toString()); |
| } |
| } |
| |
| /** |
| * Maintains a singleton object and allows access to it. If no singleton object is created the |
| * method will create one based on passed in context |
| * |
| * @param context Any context that allows access to res/raw |
| * @return Singleton MetadataProcessing object |
| */ |
| public static synchronized MetadataProcessing getInstance(Context context) { |
| if (sInstance == null) { |
| sInstance = new MetadataProcessing(context); |
| } |
| return sInstance; |
| } |
| |
| public SensorMetadata getFloatMetadata(Integer floatSensorIndex) { |
| return mFloatMetadata.getOrDefault(floatSensorIndex, null); |
| } |
| |
| public SensorMetadata getIntegerMetadata(Integer integerSensorIndex) { |
| return mIntegerMetadata.getOrDefault(integerSensorIndex, null); |
| } |
| |
| public DTCMetadata getDTCMetadata(String dtcCode) { |
| return mDTCMetadataMap.getOrDefault(dtcCode, null); |
| } |
| |
| public String getECUMetadata(String ecuAddress) { |
| return mECUMetadataMap.getOrDefault(ecuAddress, null); |
| } |
| } |