facebookincubator / Battery-Metrics

Conditional Complexity

The distribution of complexity of units (measured with McCabe index).

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

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Conditional Complexity Overall

There are 420 units with 4,081 lines of code in units (71.7% of code).

0 very complex units (0 lines of code)
0 complex units (0 lines of code)
3 medium complex units (100 lines of code)
49 simple units (1,143 lines of code)
368 very simple units (2,838 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 50 most complex units

Unit	# lines	McCabe index	# params
public boolean getTotalBytes() in metrics/src/main/java/com/facebook/battery/metrics/network/QTagUidNetworkBytesCollector.java	44	13	1
public boolean equals() in metrics/src/main/java/com/facebook/battery/metrics/disk/DiskMetrics.java	18	12	1
public synchronized void unregister() in metrics/src/main/java/com/facebook/battery/metrics/sensor/SensorMetricsCollector.java	38	11	2
public boolean getSnapshot() in metrics/src/main/java/com/facebook/battery/metrics/cpu/CpuMetricsCollector.java	40	10	1
public boolean equals() in metrics/src/main/java/com/facebook/battery/metrics/healthstats/HealthStatsMetrics.java	11	10	1
public void reportTo() in reporters/src/main/java/com/facebook/battery/reporter/disk/DiskMetricsReporter.java	29	10	2
private synchronized void updateWakeLockCounts() in metrics/src/main/java/com/facebook/battery/metrics/wakelock/WakeLockMetricsCollector.java	23	9	0
public boolean equals() in metrics/src/main/java/com/facebook/battery/metrics/memory/MemoryMetrics.java	15	9	1
public HealthStatsMetrics set() in metrics/src/main/java/com/facebook/battery/metrics/healthstats/HealthStatsMetrics.java	43	9	1
public CompositeMetrics sum() in metrics/src/main/java/com/facebook/battery/metrics/composite/CompositeMetrics.java	27	9	2
public synchronized boolean getSnapshot() in metrics/src/main/java/com/facebook/battery/metrics/disk/DiskMetricsCollector.java	48	9	1
public void serializeContents() in serializers/src/main/java/com/facebook/battery/serializer/healthstats/HealthStatsMetricsSerializer.java	51	9	2
public boolean deserializeContents() in serializers/src/main/java/com/facebook/battery/serializer/healthstats/HealthStatsMetricsSerializer.java	50	9	2
public synchronized boolean getSnapshot() in metrics/src/main/java/com/facebook/battery/metrics/wakelock/WakeLockMetricsCollector.java	28	8	1
public WakeLockMetrics sum() in metrics/src/main/java/com/facebook/battery/metrics/wakelock/WakeLockMetrics.java	27	8	2
public static boolean simpleArrayMapEquals() in metrics/src/main/java/com/facebook/battery/metrics/core/Utilities.java	24	8	2
public CpuFrequencyMetrics diff() in metrics/src/main/java/com/facebook/battery/metrics/cpu/CpuFrequencyMetrics.java	29	8	2
static ArrayMap opArrayMaps() in metrics/src/main/java/com/facebook/battery/metrics/healthstats/HealthStatsMetrics.java	19	8	3
private static Object opValues() in metrics/src/main/java/com/facebook/battery/metrics/healthstats/HealthStatsMetrics.java	27	8	3
public HealthStatsMetrics set() in metrics/src/main/java/com/facebook/battery/metrics/healthstats/HealthStatsMetrics.java	36	8	1
public boolean equals() in metrics/src/main/java/com/facebook/battery/metrics/network/RadioStateMetrics.java	14	8	1
private void op() in metrics/src/main/java/com/facebook/battery/metrics/sensor/SensorMetrics.java	33	8	4
public synchronized boolean getSnapshot() in metrics/src/main/java/com/facebook/battery/metrics/sensor/SensorMetricsCollector.java	37	8	1
public boolean equals() in metrics/src/main/java/com/facebook/battery/metrics/bluetooth/BluetoothMetrics.java	16	8	1
public WakeLockMetrics diff() in metrics/src/main/java/com/facebook/battery/metrics/wakelock/WakeLockMetrics.java	23	7	2
public boolean equals() in metrics/src/main/java/com/facebook/battery/metrics/wakelock/WakeLockMetrics.java	15	7	1
public static boolean sparseArrayEquals() in metrics/src/main/java/com/facebook/battery/metrics/core/Utilities.java	19	7	2
public boolean equals() in metrics/src/main/java/com/facebook/battery/metrics/cpu/CpuMetrics.java	13	7	1
public CpuFrequencyMetrics sum() in metrics/src/main/java/com/facebook/battery/metrics/cpu/CpuFrequencyMetrics.java	26	7	2
public boolean equals() in metrics/src/main/java/com/facebook/battery/metrics/cpu/CpuFrequencyMetrics.java	18	7	1
private void addTimers() in metrics/src/main/java/com/facebook/battery/metrics/healthstats/HealthStatsMetrics.java	19	7	1
public boolean equals() in metrics/src/main/java/com/facebook/battery/metrics/network/NetworkMetrics.java	13	7	1
public boolean equals() in metrics/src/main/java/com/facebook/battery/metrics/network/EnhancedNetworkMetrics.java	9	7	1
public CompositeMetrics diff() in metrics/src/main/java/com/facebook/battery/metrics/composite/CompositeMetrics.java	21	7	2
public void reportTo() in reporters/src/main/java/com/facebook/battery/reporter/memory/MemoryMetricsReporter.java	20	7	2
public ProcFileReader reset() in metrics/src/main/java/com/facebook/battery/metrics/core/ProcFileReader.java	26	6	0
public boolean hasNext() in metrics/src/main/java/com/facebook/battery/metrics/core/ProcFileReader.java	16	6	0
public CharBuffer readWord() in metrics/src/main/java/com/facebook/battery/metrics/core/ProcFileReader.java	27	6	1
public long readNumber() in metrics/src/main/java/com/facebook/battery/metrics/core/ProcFileReader.java	25	6	0
public boolean equals() in metrics/src/main/java/com/facebook/battery/metrics/devicebattery/DeviceBatteryMetrics.java	16	6	1
private static long fromLibcore() in metrics/src/main/java/com/facebook/battery/metrics/cpu/Sysconf.java	21	6	2
public static boolean sparseIntArrayEquals() in metrics/src/main/java/com/facebook/battery/metrics/cpu/CpuFrequencyMetrics.java	15	6	2
private static void readKeyNames() in metrics/src/main/java/com/facebook/battery/metrics/healthstats/HealthStatsMetrics.java	26	6	0
private void addMeasurements() in metrics/src/main/java/com/facebook/battery/metrics/healthstats/HealthStatsMetrics.java	19	6	1
private void addStats() in metrics/src/main/java/com/facebook/battery/metrics/healthstats/HealthStatsMetrics.java	19	6	1
public boolean equals() in metrics/src/main/java/com/facebook/battery/metrics/sensor/SensorMetrics.java	12	6	1
public boolean equals() in metrics/src/main/java/com/facebook/battery/metrics/sensor/SensorMetrics.java	12	6	1
public AppWakeupMetrics sum() in metrics/src/main/java/com/facebook/battery/metrics/appwakeup/AppWakeupMetrics.java	22	6	2
public boolean equals() in metrics/src/main/java/com/facebook/battery/metrics/appwakeup/AppWakeupMetrics.java	8	6	1
public boolean deserializeContents() in serializers/src/main/java/com/facebook/battery/serializer/composite/CompositeMetricsSerializer.java	21	6	2