Java Code Examples for org.apache.hadoop.hbase.HColumnDescriptor#getDataBlockEncoding()

The following examples show how to use org.apache.hadoop.hbase.HColumnDescriptor#getDataBlockEncoding() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: HFileOutputFormat3.java    From kylin-on-parquet-v2 with Apache License 2.0 6 votes vote down vote up
/**
 * Serialize column family to data block encoding map to configuration.
 * Invoked while configuring the MR job for incremental load.
 *
 * @param table to read the properties from
 * @param conf to persist serialized values into
 * @throws IOException
 *           on failure to read column family descriptors
 */
@VisibleForTesting
static void configureDataBlockEncoding(HTableDescriptor tableDescriptor, Configuration conf)
        throws UnsupportedEncodingException {
    if (tableDescriptor == null) {
        // could happen with mock table instance
        return;
    }
    StringBuilder dataBlockEncodingConfigValue = new StringBuilder();
    Collection<HColumnDescriptor> families = tableDescriptor.getFamilies();
    int i = 0;
    for (HColumnDescriptor familyDescriptor : families) {
        if (i++ > 0) {
            dataBlockEncodingConfigValue.append('&');
        }
        dataBlockEncodingConfigValue.append(URLEncoder.encode(familyDescriptor.getNameAsString(), "UTF-8"));
        dataBlockEncodingConfigValue.append('=');
        DataBlockEncoding encoding = familyDescriptor.getDataBlockEncoding();
        if (encoding == null) {
            encoding = DataBlockEncoding.NONE;
        }
        dataBlockEncodingConfigValue.append(URLEncoder.encode(encoding.toString(), "UTF-8"));
    }
    conf.set(DATABLOCK_ENCODING_FAMILIES_CONF_KEY, dataBlockEncodingConfigValue.toString());
}
 
Example 2
Source File: HFileOutputFormat3.java    From kylin with Apache License 2.0 6 votes vote down vote up
/**
 * Serialize column family to data block encoding map to configuration.
 * Invoked while configuring the MR job for incremental load.
 *
 * @param table to read the properties from
 * @param conf to persist serialized values into
 * @throws IOException
 *           on failure to read column family descriptors
 */
@VisibleForTesting
static void configureDataBlockEncoding(HTableDescriptor tableDescriptor, Configuration conf)
        throws UnsupportedEncodingException {
    if (tableDescriptor == null) {
        // could happen with mock table instance
        return;
    }
    StringBuilder dataBlockEncodingConfigValue = new StringBuilder();
    Collection<HColumnDescriptor> families = tableDescriptor.getFamilies();
    int i = 0;
    for (HColumnDescriptor familyDescriptor : families) {
        if (i++ > 0) {
            dataBlockEncodingConfigValue.append('&');
        }
        dataBlockEncodingConfigValue.append(URLEncoder.encode(familyDescriptor.getNameAsString(), "UTF-8"));
        dataBlockEncodingConfigValue.append('=');
        DataBlockEncoding encoding = familyDescriptor.getDataBlockEncoding();
        if (encoding == null) {
            encoding = DataBlockEncoding.NONE;
        }
        dataBlockEncodingConfigValue.append(URLEncoder.encode(encoding.toString(), "UTF-8"));
    }
    conf.set(DATABLOCK_ENCODING_FAMILIES_CONF_KEY, dataBlockEncodingConfigValue.toString());
}