/** Create directory entries for every item */
boolean mkdirs(String src) {
src = normalizePath(new UTF8(src));
// Use this to collect all the dirs we need to construct
Vector v = new Vector();
// The dir itself
v.add(src);
// All its parents
String parent = DFSFile.getDFSParent(src);
while (parent != null) {
v.add(parent);
parent = DFSFile.getDFSParent(parent);
}
// Now go backwards through list of dirs, creating along
// the way
boolean lastSuccess = false;
int numElts = v.size();
for (int i = numElts - 1; i >= 0; i--) {
String cur = (String) v.elementAt(i);
INode inserted = unprotectedMkdir(cur);
if (inserted != null) {
logEdit(OP_MKDIR, new UTF8(inserted.computeName()), null);
lastSuccess = true;
} else {
lastSuccess = false;
}
}
return lastSuccess;
}
/** Add the given filename to the fs. */
public boolean addFile(UTF8 src, Block blocks[]) {
waitForReady();
// Always do an implicit mkdirs for parent directory tree
mkdirs(DFSFile.getDFSParent(src.toString()));
if (unprotectedAddFile(src, blocks)) {
logEdit(OP_ADD, src, new ArrayWritable(Block.class, blocks));
return true;
} else {
return false;
}
}
INode addNode(String target, Block blks[]) {
if (getNode(target) != null) {
return null;
} else {
String parentName = DFSFile.getDFSParent(target);
if (parentName == null) {
return null;
}
INode parentNode = getNode(parentName);
if (parentNode == null) {
return null;
} else {
String targetName = new File(target).getName();
INode newItem = new INode(targetName, parentNode, blks);
parentNode.children.put(targetName, newItem);
return newItem;
}
}
}