本文整理汇总了Java中org.apache.hadoop.mapred.JobConf.getInputFormat方法的典型用法代码示例。如果您正苦于以下问题：Java JobConf.getInputFormat方法的具体用法？Java JobConf.getInputFormat怎么用？Java JobConf.getInputFormat使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类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个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: splitInput
import org.apache.hadoop.mapred.JobConf; //导入方法依赖的package包/类
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;
}
}
}