Example usage for java.util EnumMap toString

Introduction

In this page you can find the example usage for java.util EnumMap toString.

Prototype

public String toString() 

Source Link

Document

Returns a string representation of the object.

Usage

From source file:org.apache.hadoop.hbase.io.hfile.TestCacheOnWrite.java

private void readStoreFile(boolean useTags) throws IOException {
    AbstractHFileReader reader;//from w  ww .j a  v a2s .c o m
    if (useTags) {
        reader = (HFileReaderV3) HFile.createReader(fs, storeFilePath, cacheConf, conf);
    } else {
        reader = (HFileReaderV2) HFile.createReader(fs, storeFilePath, cacheConf, conf);
    }
    LOG.info("HFile information: " + reader);
    final boolean cacheBlocks = false;
    final boolean pread = false;
    HFileScanner scanner = reader.getScanner(cacheBlocks, pread);
    assertTrue(testDescription, scanner.seekTo());

    long offset = 0;
    HFileBlock prevBlock = null;
    EnumMap<BlockType, Integer> blockCountByType = new EnumMap<BlockType, Integer>(BlockType.class);

    DataBlockEncoding encodingInCache = encoderType.getEncoder().getDataBlockEncoding();
    while (offset < reader.getTrailer().getLoadOnOpenDataOffset()) {
        long onDiskSize = -1;
        if (prevBlock != null) {
            onDiskSize = prevBlock.getNextBlockOnDiskSizeWithHeader();
        }
        // Flags: don't cache the block, use pread, this is not a compaction.
        // Also, pass null for expected block type to avoid checking it.
        HFileBlock block = reader.readBlock(offset, onDiskSize, false, true, false, true, null,
                encodingInCache);
        BlockCacheKey blockCacheKey = new BlockCacheKey(reader.getName(), offset);
        boolean isCached = blockCache.getBlock(blockCacheKey, true, false, true) != null;
        boolean shouldBeCached = cowType.shouldBeCached(block.getBlockType());
        if (shouldBeCached != isCached) {
            throw new AssertionError("shouldBeCached: " + shouldBeCached + "\n" + "isCached: " + isCached + "\n"
                    + "Test description: " + testDescription + "\n" + "block: " + block + "\n"
                    + "encodingInCache: " + encodingInCache + "\n" + "blockCacheKey: " + blockCacheKey);
        }
        prevBlock = block;
        offset += block.getOnDiskSizeWithHeader();
        BlockType bt = block.getBlockType();
        Integer count = blockCountByType.get(bt);
        blockCountByType.put(bt, (count == null ? 0 : count) + 1);
    }

    LOG.info("Block count by type: " + blockCountByType);
    String countByType = blockCountByType.toString();
    BlockType cachedDataBlockType = encoderType.encode ? BlockType.ENCODED_DATA : BlockType.DATA;
    if (useTags) {
        assertEquals("{" + cachedDataBlockType + "=1550, LEAF_INDEX=173, BLOOM_CHUNK=9, INTERMEDIATE_INDEX=20}",
                countByType);
    } else {
        assertEquals("{" + cachedDataBlockType + "=1379, LEAF_INDEX=154, BLOOM_CHUNK=9, INTERMEDIATE_INDEX=18}",
                countByType);
    }
    reader.close();
}

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