本文整理匯總了Java中org.apache.hadoop.mapred.JobConf.getInputFormat方法的典型用法代碼示例。如果您正苦於以下問題：Java JobConf.getInputFormat方法的具體用法？Java JobConf.getInputFormat怎麽用？Java JobConf.getInputFormat使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.apache.hadoop.mapred.JobConf的用法示例。
在下文中一共展示了JobConf.getInputFormat方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: splitInput
import org.apache.hadoop.mapred.JobConf; //導入方法依賴的package包/類
private void splitInput(final Properties properties, final StorageDescriptor sd, final Partition partition)
throws ReflectiveOperationException, IOException {
final JobConf job = new JobConf();
for (final Object obj : properties.keySet()) {
job.set((String) obj, (String) properties.get(obj));
}
for (final Map.Entry<String, String> entry : hiveReadEntry.hiveConfigOverride.entrySet()) {
job.set(entry.getKey(), entry.getValue());
}
InputFormat<?, ?> format = (InputFormat<?, ?>)
Class.forName(sd.getInputFormat()).getConstructor().newInstance();
job.setInputFormat(format.getClass());
final Path path = new Path(sd.getLocation());
final FileSystem fs = path.getFileSystem(job);
if (fs.exists(path)) {
FileInputFormat.addInputPath(job, path);
format = job.getInputFormat();
for (final InputSplit split : format.getSplits(job, 1)) {
inputSplits.add(split);
partitionMap.put(split, partition);
}
}
final String numRowsProp = properties.getProperty("numRows");
logger.trace("HiveScan num rows property = {}", numRowsProp);
if (numRowsProp != null) {
final long numRows = Long.valueOf(numRowsProp);
// starting from hive-0.13, when no statistics are available, this property is set to -1
// it's important to note that the value returned by hive may not be up to date
if (numRows > 0) {
rowCount += numRows;
}
}
}