twitter / hadoop-lzoConditional Complexity

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 197 units with 1,821 lines of code in units (44.2% of code).

0 very complex units (0 lines of code)
0 complex units (0 lines of code)
5 medium complex units (251 lines of code)
10 simple units (343 lines of code)
182 very simple units (1,227 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
protected void readHeader() in src/main/java/com/hadoop/compression/lzo/LzopInputStream.java	92	21	1
public void write() in src/main/java/com/hadoop/compression/lzo/LzopOutputStream.java	35	13	3
protected int decompress() in src/main/java/com/hadoop/compression/lzo/LzopInputStream.java	38	11	3
private static File unpackBinaries() in src/main/java/com/hadoop/compression/lzo/GPLNativeCodeLoader.java	41	11	0
public boolean nextKeyValue() in src/main/java/com/hadoop/mapreduce/LzoSplitRecordReader.java	45	11	0
public static void createIndex() in src/main/java/com/hadoop/compression/lzo/LzoIndex.java	56	10	2
public int run() in src/main/java/com/hadoop/compression/lzo/DistributedLzoIndexer.java	47	9	1
static in src/main/java/com/hadoop/compression/lzo/util/CompatibilityUtil.java	38	8	0
public synchronized int compress() in src/main/java/com/hadoop/compression/lzo/LzoCompressor.java	35	7	3
private void walkPath() in src/main/java/com/hadoop/compression/lzo/DistributedLzoIndexer.java	28	7	3
public synchronized int decompress() in src/main/java/com/hadoop/compression/lzo/LzoDecompressor.java	35	7	3
public List getSplits() in src/main/java/com/hadoop/mapreduce/LzoTextInputFormat.java	30	7	1
private void indexInternal() in src/main/java/com/hadoop/compression/lzo/LzoIndexer.java	28	6	2
private void verifyChecksums() in src/main/java/com/hadoop/compression/lzo/LzopInputStream.java	15	6	0
protected int getCompressedData() in src/main/java/com/hadoop/compression/lzo/LzopInputStream.java	31	6	0
static FARPROC WINAPI do_dlsym() in src/main/native/impl/gpl-compression.h	14	5	3
public void initHeaderFlags() in src/main/java/com/hadoop/compression/lzo/LzopDecompressor.java	15	5	2
public synchronized void setInput() in src/main/java/com/hadoop/compression/lzo/LzoDecompressor.java	23	5	3
protected List listStatus() in src/main/java/com/hadoop/mapreduce/LzoTextInputFormat.java	19	5	1
static long fastread() in src/main/java/com/quicklz/QuickLZ.java	26	5	3
static in src/main/java/com/hadoop/compression/lzo/LzoCompressor.java	18	4	0
private ByteBuffer realloc() in src/main/java/com/hadoop/compression/lzo/LzoCompressor.java	19	4	2
public synchronized void setInput() in src/main/java/com/hadoop/compression/lzo/LzoCompressor.java	18	4	3
private static Object newInstance() in src/main/java/com/hadoop/compression/lzo/util/CompatibilityUtil.java	11	4	2
static in src/main/java/com/hadoop/compression/lzo/LzoCodec.java	13	4	0
public static void main() in src/main/java/com/hadoop/compression/lzo/LzoIndexer.java	14	4	1
public long alignSliceStartToIndex() in src/main/java/com/hadoop/compression/lzo/LzoIndex.java	10	4	2
static in src/main/java/com/hadoop/compression/lzo/LzoDecompressor.java	18	4	0
public synchronized boolean needsInput() in src/main/java/com/hadoop/compression/lzo/LzoDecompressor.java	13	4	0
static in src/main/java/com/hadoop/compression/lzo/GPLNativeCodeLoader.java	22	4	0
protected static void writeLzopHeader() in src/main/java/com/hadoop/compression/lzo/LzopOutputStream.java	39	4	3
protected void compress() in src/main/java/com/hadoop/compression/lzo/LzopOutputStream.java	17	4	0
static void fastwrite() in src/main/java/com/quicklz/QuickLZ.java	21	4	4
public boolean next() in src/main/java/com/hadoop/mapred/DeprecatedLzoLineRecordReader.java	12	3	2
public boolean needsInput() in src/main/java/com/hadoop/compression/lzo/LzoCompressor.java	5	3	0
public synchronized boolean finished() in src/main/java/com/hadoop/compression/lzo/LzoCompressor.java	3	3	0
private static Object invoke() in src/main/java/com/hadoop/compression/lzo/util/CompatibilityUtil.java	9	3	3
public synchronized void resetChecksum() in src/main/java/com/hadoop/compression/lzo/LzopDecompressor.java	4	3	0
public synchronized void setInput() in src/main/java/com/hadoop/compression/lzo/LzopDecompressor.java	6	3	3
public synchronized int decompress() in src/main/java/com/hadoop/compression/lzo/LzopDecompressor.java	8	3	3
public CompressionOutputStream createOutputStream() in src/main/java/com/hadoop/compression/lzo/LzoCodec.java	12	3	2
public long findNextPosition() in src/main/java/com/hadoop/compression/lzo/LzoIndex.java	12	3	1
public static LzoIndex readIndex() in src/main/java/com/hadoop/compression/lzo/LzoIndex.java	19	3	2
static void setJobName() in src/main/java/com/hadoop/compression/lzo/DistributedLzoIndexer.java	9	3	2
private static void readFully() in src/main/java/com/hadoop/compression/lzo/LzopInputStream.java	12	3	4
public void close() in src/main/java/com/hadoop/compression/lzo/LzopInputStream.java	12	3	0
public void close() in src/main/java/com/hadoop/compression/lzo/LzopOutputStream.java	11	3	0
public void finish() in src/main/java/com/hadoop/compression/lzo/LzopOutputStream.java	8	3	0
public void initialize() in src/main/java/com/hadoop/mapreduce/LzoLineRecordReader.java	21	3	2
public boolean nextKeyValue() in src/main/java/com/hadoop/mapreduce/LzoLineRecordReader.java	12	3	0