本文整理匯總了Java中org.apache.hadoop.fs.FSDataInputStream.readLine方法的典型用法代碼示例。如果您正苦於以下問題：Java FSDataInputStream.readLine方法的具體用法？Java FSDataInputStream.readLine怎麽用？Java FSDataInputStream.readLine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.fs.FSDataInputStream的用法示例。
在下文中一共展示了FSDataInputStream.readLine方法的2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: verifyOutput
import org.apache.hadoop.fs.FSDataInputStream; //導入方法依賴的package包/類
private void verifyOutput(RunningJob submittedJob, FileSystem fileSystem)
throws Exception {
FSDataInputStream dis = null;
long numValidRecords = 0;
long numInvalidRecords = 0;
long numMappersLaunched = NUM_MAPPERS;
String prevKeyValue = "000000000";
Path[] fileList =
FileUtil.stat2Paths(fileSystem.listStatus(OUTPUT,
new Utils.OutputFileUtils.OutputFilesFilter()));
for (Path outFile : fileList) {
try {
dis = fileSystem.open(outFile);
String record;
while((record = dis.readLine()) != null) {
// Split the line into key and value.
int blankPos = record.indexOf(" ");
String keyString = record.substring(0, blankPos);
String valueString = record.substring(blankPos+1);
// Check for sorted output and correctness of record.
if (keyString.compareTo(prevKeyValue) >= 0
&& keyString.equals(valueString)) {
prevKeyValue = keyString;
numValidRecords++;
} else {
numInvalidRecords++;
}
}
} finally {
if (dis != null) {
dis.close();
dis = null;
}
}
}
// Make sure we got all input records in the output in sorted order.
assertEquals((long)(NUM_MAPPERS*NUM_LINES), numValidRecords);
// Make sure there is no extraneous invalid record.
assertEquals(0, numInvalidRecords);
}
示例2: verifyOutput
import org.apache.hadoop.fs.FSDataInputStream; //導入方法依賴的package包/類
private void verifyOutput(RunningJob submittedJob, FileSystem fileSystem, int numMappers, int numLines)
throws Exception {
FSDataInputStream dis = null;
long numValidRecords = 0;
long numInvalidRecords = 0;
String prevKeyValue = "000000000";
Path[] fileList =
FileUtil.stat2Paths(fileSystem.listStatus(OUTPUT,
new Utils.OutputFileUtils.OutputFilesFilter()));
for (Path outFile : fileList) {
try {
dis = fileSystem.open(outFile);
String record;
while((record = dis.readLine()) != null) {
// Split the line into key and value.
int blankPos = record.indexOf(" ");
String keyString = record.substring(0, blankPos);
String valueString = record.substring(blankPos+1);
// Check for sorted output and correctness of record.
if (keyString.compareTo(prevKeyValue) >= 0
&& keyString.equals(valueString)) {
prevKeyValue = keyString;
numValidRecords++;
} else {
numInvalidRecords++;
}
}
} finally {
if (dis != null) {
dis.close();
dis = null;
}
}
}
// Make sure we got all input records in the output in sorted order.
assertEquals((long)(numMappers * numLines), numValidRecords);
// Make sure there is no extraneous invalid record.
assertEquals(0, numInvalidRecords);
}