本文整理汇总了Java中org.apache.hadoop.hdfs.util.ReadOnlyList.isEmpty方法的典型用法代码示例。如果您正苦于以下问题：Java ReadOnlyList.isEmpty方法的具体用法？Java ReadOnlyList.isEmpty怎么用？Java ReadOnlyList.isEmpty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.hdfs.util.ReadOnlyList的用法示例。
在下文中一共展示了ReadOnlyList.isEmpty方法的5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: checkSubAccess
import org.apache.hadoop.hdfs.util.ReadOnlyList; //导入方法依赖的package包/类
/** Guarded by {@link FSNamesystem#readLock()} */
private void checkSubAccess(byte[][] pathByNameArr, int pathIdx, INode inode,
int snapshotId, FsAction access, boolean ignoreEmptyDir)
throws AccessControlException {
if (inode == null || !inode.isDirectory()) {
return;
}
Stack<INodeDirectory> directories = new Stack<INodeDirectory>();
for(directories.push(inode.asDirectory()); !directories.isEmpty(); ) {
INodeDirectory d = directories.pop();
ReadOnlyList<INode> cList = d.getChildrenList(snapshotId);
if (!(cList.isEmpty() && ignoreEmptyDir)) {
//TODO have to figure this out with inodeattribute provider
check(getINodeAttrs(pathByNameArr, pathIdx, d, snapshotId),
inode.getFullPathName(), access);
}
for(INode child : cList) {
if (child.isDirectory()) {
directories.push(child.asDirectory());
}
}
}
}
示例2: checkSubAccess
import org.apache.hadoop.hdfs.util.ReadOnlyList; //导入方法依赖的package包/类
/**
* Guarded by {@link FSNamesystem#readLock()}
*/
private void checkSubAccess(String user, Set<String> groups, INode inode,
int snapshotId, FsAction access, boolean ignoreEmptyDir)
throws AccessControlException {
if (inode == null || !inode.isDirectory()) {
return;
}
Stack<INodeDirectory> directories = new Stack<INodeDirectory>();
for (directories.push(inode.asDirectory()); !directories.isEmpty(); ) {
INodeDirectory d = directories.pop();
ReadOnlyList<INode> cList = d.getChildrenList(snapshotId);
if (!(cList.isEmpty() && ignoreEmptyDir)) {
check(user, groups, d, snapshotId, access);
}
for (INode child : cList) {
if (child.isDirectory()) {
directories.push(child.asDirectory());
}
}
}
}
示例3: checkSubAccess
import org.apache.hadoop.hdfs.util.ReadOnlyList; //导入方法依赖的package包/类
/** Guarded by {@link FSNamesystem#readLock()} */
private void checkSubAccess(INode inode, int snapshotId, FsAction access,
boolean ignoreEmptyDir) throws AccessControlException {
if (inode == null || !inode.isDirectory()) {
return;
}
Stack<INodeDirectory> directories = new Stack<INodeDirectory>();
for(directories.push(inode.asDirectory()); !directories.isEmpty(); ) {
INodeDirectory d = directories.pop();
ReadOnlyList<INode> cList = d.getChildrenList(snapshotId);
if (!(cList.isEmpty() && ignoreEmptyDir)) {
check(d, snapshotId, access);
}
for(INode child : cList) {
if (child.isDirectory()) {
directories.push(child.asDirectory());
}
}
}
}
示例4: validateOverwrite
import org.apache.hadoop.hdfs.util.ReadOnlyList; //导入方法依赖的package包/类
private static void validateOverwrite(
String src, String dst, boolean overwrite, INode srcInode, INode dstInode)
throws IOException {
String error;// It's OK to rename a file to a symlink and vice versa
if (dstInode.isDirectory() != srcInode.isDirectory()) {
error = "Source " + src + " and destination " + dst
+ " must both be directories";
NameNode.stateChangeLog.warn("DIR* FSDirectory.unprotectedRenameTo: "
+ error);
throw new IOException(error);
}
if (!overwrite) { // If destination exists, overwrite flag must be true
error = "rename destination " + dst + " already exists";
NameNode.stateChangeLog.warn("DIR* FSDirectory.unprotectedRenameTo: "
+ error);
throw new FileAlreadyExistsException(error);
}
if (dstInode.isDirectory()) {
final ReadOnlyList<INode> children = dstInode.asDirectory()
.getChildrenList(Snapshot.CURRENT_STATE_ID);
if (!children.isEmpty()) {
error = "rename destination directory is not empty: " + dst;
NameNode.stateChangeLog.warn("DIR* FSDirectory.unprotectedRenameTo: "
+ error);
throw new IOException(error);
}
}
}
示例5: validateRenameOverwrite
import org.apache.hadoop.hdfs.util.ReadOnlyList; //导入方法依赖的package包/类
private static void validateRenameOverwrite(String src, String dst,
boolean overwrite,
INode srcInode, INode dstInode)
throws IOException {
String error;// It's OK to rename a file to a symlink and vice versa
if (dstInode.isDirectory() != srcInode.isDirectory()) {
error = "Source " + src + " and destination " + dst
+ " must both be directories";
NameNode.stateChangeLog.warn("DIR* FSDirectory.unprotectedRenameTo: "
+ error);
throw new IOException(error);
}
if (!overwrite) { // If destination exists, overwrite flag must be true
error = "rename destination " + dst + " already exists";
NameNode.stateChangeLog.warn("DIR* FSDirectory.unprotectedRenameTo: "
+ error);
throw new FileAlreadyExistsException(error);
}
if (dstInode.isDirectory()) {
final ReadOnlyList<INode> children = dstInode.asDirectory()
.getChildrenList(Snapshot.CURRENT_STATE_ID);
if (!children.isEmpty()) {
error = "rename destination directory is not empty: " + dst;
NameNode.stateChangeLog.warn(
"DIR* FSDirectory.unprotectedRenameTo: " + error);
throw new IOException(error);
}
}
}