本文整理汇总了Java中org.apache.hadoop.mapred.IFile.Reader方法的典型用法代码示例。如果您正苦于以下问题：Java IFile.Reader方法的具体用法？Java IFile.Reader怎么用？Java IFile.Reader使用的例子？那么恭喜您, 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.IFile的用法示例。
在下文中一共展示了IFile.Reader方法的2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: readOnDiskMapOutput
import org.apache.hadoop.mapred.IFile; //导入方法依赖的package包/类
private void readOnDiskMapOutput(Configuration conf, FileSystem fs, Path path,
List<String> keys, List<String> values) throws IOException {
FSDataInputStream in = CryptoUtils.wrapIfNecessary(conf, fs.open(path));
IFile.Reader<Text, Text> reader = new IFile.Reader<Text, Text>(conf, in,
fs.getFileStatus(path).getLen(), null, null);
DataInputBuffer keyBuff = new DataInputBuffer();
DataInputBuffer valueBuff = new DataInputBuffer();
Text key = new Text();
Text value = new Text();
while (reader.nextRawKey(keyBuff)) {
key.readFields(keyBuff);
keys.add(key.toString());
reader.nextRawValue(valueBuff);
value.readFields(valueBuff);
values.add(value.toString());
}
}
示例2: readOnDiskMapOutput
import org.apache.hadoop.mapred.IFile; //导入方法依赖的package包/类
private void readOnDiskMapOutput(Configuration conf, FileSystem fs, Path path,
List<String> keys, List<String> values) throws IOException {
IFile.Reader<Text, Text> reader = new IFile.Reader<Text, Text>(conf, fs,
path, null, null);
DataInputBuffer keyBuff = new DataInputBuffer();
DataInputBuffer valueBuff = new DataInputBuffer();
Text key = new Text();
Text value = new Text();
while (reader.nextRawKey(keyBuff)) {
key.readFields(keyBuff);
keys.add(key.toString());
reader.nextRawValue(valueBuff);
value.readFields(valueBuff);
values.add(value.toString());
}
}