本文整理匯總了Java中org.apache.hadoop.util.Shell.isJava7OrAbove方法的典型用法代碼示例。如果您正苦於以下問題：Java Shell.isJava7OrAbove方法的具體用法？Java Shell.isJava7OrAbove怎麽用？Java Shell.isJava7OrAbove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.util.Shell的用法示例。
在下文中一共展示了Shell.isJava7OrAbove方法的3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: link
import org.apache.hadoop.util.Shell; //導入方法依賴的package包/類
@Override
protected void link(Path src, Path dst) throws IOException {
File srcFile = new File(src.toUri().getPath());
String srcFileStr = srcFile.getPath();
String dstFileStr = new File(dst.toString()).getPath();
// If not on Java7+ on Windows, then copy file instead of symlinking.
// See also FileUtil#symLink for full explanation.
if (!Shell.isJava7OrAbove() && srcFile.isFile()) {
lineWithLenCheck(String.format("@copy \"%s\" \"%s\"", srcFileStr, dstFileStr));
errorCheck();
} else {
lineWithLenCheck(String.format("@%s symlink \"%s\" \"%s\"", Shell.WINUTILS,
dstFileStr, srcFileStr));
errorCheck();
}
}
示例2: testSymlinkLength
import org.apache.hadoop.util.Shell; //導入方法依賴的package包/類
/**
* Test that length on a symlink works as expected.
*/
@Test (timeout = 30000)
public void testSymlinkLength() throws Exception {
Assert.assertFalse(del.exists());
del.mkdirs();
byte[] data = "testSymLinkData".getBytes();
File file = new File(del, FILE);
File link = new File(del, "_link");
// write some data to the file
FileOutputStream os = new FileOutputStream(file);
os.write(data);
os.close();
Assert.assertEquals(0, link.length());
// create the symlink
FileUtil.symLink(file.getAbsolutePath(), link.getAbsolutePath());
// ensure that File#length returns the target file and link size
Assert.assertEquals(data.length, file.length());
Assert.assertEquals(data.length, link.length());
file.delete();
Assert.assertFalse(file.exists());
if (Shell.WINDOWS && !Shell.isJava7OrAbove()) {
// On Java6 on Windows, we copied the file
Assert.assertEquals(data.length, link.length());
} else {
// Otherwise, the target file size is zero
Assert.assertEquals(0, link.length());
}
link.delete();
Assert.assertFalse(link.exists());
}
示例3: emulatingSymlinksOnWindows
import org.apache.hadoop.util.Shell; //導入方法依賴的package包/類
@Override
protected boolean emulatingSymlinksOnWindows() {
// Java 6 on Windows has very poor symlink support. Specifically
// Specifically File#length and File#renameTo do not work as expected.
// (see HADOOP-9061 for additional details)
// Hence some symlink tests will be skipped.
//
return (Shell.WINDOWS && !Shell.isJava7OrAbove());
}