public static VFSContainer getOrCreateContainer(VFSContainer parent, String name) {
VFSItem item = parent.resolve(name);
if (item instanceof VFSContainer) {
return (VFSContainer) item;
} else if (item != null) {
return null; // problem
} else {
return parent.createChildContainer(name);
}
}
/**
* Resolves a directory path in the base container or creates this directory. The method creates
* any missing directories.
*
* @param baseContainer The base directory. User must have write permissions on this container
* @param relContainerPath The path relative to the base container. Must start with a '/'. To
* separate sub directories use '/'
* @return The resolved or created container or NULL if a problem happened
*/
public static VFSContainer resolveOrCreateContainerFromPath(
VFSContainer baseContainer, String relContainerPath) {
VFSContainer resultContainer = baseContainer;
if (!VFSConstants.YES.equals(baseContainer.canWrite())) {
log.error(
"Could not create relPath::"
+ relContainerPath
+ ", base container::"
+ getRealPath(baseContainer)
+ " not writable",
null);
resultContainer = null;
} else if (StringHelper.containsNonWhitespace(relContainerPath)) {
// Try to resolve given rel path from current container
VFSItem resolvedPath = baseContainer.resolve(relContainerPath.trim());
if (resolvedPath == null) {
// Does not yet exist - create subdir
String[] pathSegments = relContainerPath.split("/");
for (int i = 0; i < pathSegments.length; i++) {
String segment = pathSegments[i].trim();
if (StringHelper.containsNonWhitespace(segment)) {
resolvedPath = resultContainer.resolve(segment);
if (resolvedPath == null) {
resultContainer = resultContainer.createChildContainer(segment);
if (resultContainer == null) {
log.error(
"Could not create container with name::"
+ segment
+ " in relPath::"
+ relContainerPath
+ " in base container::"
+ getRealPath(baseContainer),
null);
break;
}
} else {
if (resolvedPath instanceof VFSContainer) {
resultContainer = (VFSContainer) resolvedPath;
} else {
resultContainer = null;
log.error(
"Could not create container with name::"
+ segment
+ " in relPath::"
+ relContainerPath
+ ", a file with this name exists (but not a directory) in base container::"
+ getRealPath(baseContainer),
null);
break;
}
}
}
}
} else {
// Parent dir already exists, make sure this is really a container and not a file!
if (resolvedPath instanceof VFSContainer) {
resultContainer = (VFSContainer) resolvedPath;
} else {
resultContainer = null;
log.error(
"Could not create relPath::"
+ relContainerPath
+ ", a file with this name exists (but not a directory) in base container::"
+ getRealPath(baseContainer),
null);
}
}
}
return resultContainer;
}
