Home | History | Annotate | Download | only in metric
      1 /*
      2  * Copyright (C) 2017 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 package com.android.tradefed.device.metric;
     17 
     18 import com.android.tradefed.device.ITestDevice;
     19 import com.android.tradefed.invoker.IInvocationContext;
     20 import com.android.tradefed.metrics.proto.MetricMeasurement.Metric;
     21 
     22 import com.google.common.base.Preconditions;
     23 
     24 import java.io.Serializable;
     25 import java.util.HashMap;
     26 import java.util.LinkedHashMap;
     27 
     28 /**
     29  * Object to hold all the data collected by metric collectors. TODO: Add the data holding and
     30  * receiving of data methods.
     31  */
     32 public class DeviceMetricData implements Serializable {
     33     private static final long serialVersionUID = 1;
     34     // When collecting metrics for multiple devices, the configuration name of the device is added
     35     // as a namespace to differentiate the metrics.
     36     private static final String DEVICE_NAME_FORMAT_KEY = "{%s}:%s";
     37 
     38     private HashMap<String, Metric> mCurrentMetrics = new LinkedHashMap<>();
     39 
     40     private final IInvocationContext mContext;
     41 
     42     /** Ctor */
     43     public DeviceMetricData(IInvocationContext context) {
     44         mContext = context;
     45     }
     46 
     47     /**
     48      * Add a single metric associated with the primary device.
     49      *
     50      * @param key The key of the metric.
     51      * @param metric The value associated with the metric.
     52      */
     53     public void addMetric(String key, Metric.Builder metric) {
     54         synchronized (mCurrentMetrics) {
     55             String actualKey = key;
     56             if (mContext.getDevices().size() > 1) {
     57                 // If there is more than one device, default add is for first device.
     58                 String deviceName = mContext.getDeviceName(mContext.getDevices().get(0));
     59                 actualKey = String.format(DEVICE_NAME_FORMAT_KEY, deviceName, key);
     60             }
     61             // Last opportunity to automatically set some values.
     62             Metric m = metric.build();
     63             mCurrentMetrics.put(actualKey, m);
     64         }
     65     }
     66 
     67     /**
     68      * Add a single metric associated with a specified device.
     69      *
     70      * @param device the {@link ITestDevice} the metric is associated to.
     71      * @param key The key of the metric.
     72      * @param metric The value associated with the metric.
     73      */
     74     public void addMetricForDevice(ITestDevice device, String key, Metric.Builder metric) {
     75         synchronized (mCurrentMetrics) {
     76             String actualKey = key;
     77             if (mContext.getDevices().size() > 1) {
     78                 // If there is more than one device, default add is for first device.
     79                 String deviceName = mContext.getDeviceName(device);
     80                 actualKey = String.format(DEVICE_NAME_FORMAT_KEY, deviceName, key);
     81             }
     82             // Last opportunity to automatically set some values.
     83             Metric m = metric.build();
     84             mCurrentMetrics.put(actualKey, m);
     85         }
     86     }
     87 
     88     /**
     89      * Push all the data received so far to the map of metrics that will be reported. This should
     90      * also clean up the resources after pushing them.
     91      *
     92      * @param metrics The metrics currently available.
     93      */
     94     public void addToMetrics(HashMap<String, Metric> metrics) {
     95         Preconditions.checkNotNull(metrics);
     96         synchronized (mCurrentMetrics) {
     97             metrics.putAll(mCurrentMetrics);
     98         }
     99     }
    100 }
    101