/**
* This function returns a RepositoryNode with a canonicalized path.
*
* @param url the url in String form
* @param create true iff the node should be created if absent
* @return RepositoryNode the node
* @throws MalformedURLException
*/
private synchronized RepositoryNode getNode(String url, boolean create)
throws MalformedURLException {
String canonUrl;
boolean isAuUrl = false;
if (AuUrl.isAuUrl(url)) {
// path information is lost here, but is unimportant if it's an AuUrl
canonUrl = AuUrl.PROTOCOL;
isAuUrl = true;
} else {
// create a canonical path, handling all illegal path traversal
canonUrl = canonicalizePath(url);
}
// check LRUMap cache for node
RepositoryNode node = (RepositoryNode) nodeCache.get(nodeCacheKey(canonUrl));
if (node != null) {
return node;
}
String nodeLocation;
if (isAuUrl) {
// base directory of ArchivalUnit
nodeLocation = rootLocation;
node = new AuNodeImpl(canonUrl, nodeLocation, this);
} else {
// determine proper node location
nodeLocation =
LockssRepositoryImpl.mapUrlToFileLocation(rootLocation, canonUrl)
.replace("?", "")
.replace("COM8", "COMEIGHT")
.replace("%5c", "/"); // //windows folder structure fix
node = new RepositoryNodeImpl(canonUrl, nodeLocation, this);
}
if (!create) {
// if not creating, check for existence
File nodeDir = new File(nodeLocation);
if (!nodeDir.exists()) {
// return null if the node doesn't exist and shouldn't be created
return null;
}
if (!nodeDir.isDirectory()) {
logger.error("Cache file not a directory: " + nodeLocation);
throw new LockssRepository.RepositoryStateException("Invalid cache file.");
}
}
// add to node cache
nodeCache.put(nodeCacheKey(canonUrl), node);
return node;
}
int getRefMisses() {
return nodeCache.getRefMisses();
}
int getRefHits() {
return nodeCache.getRefHits();
}
int getCacheMisses() {
return nodeCache.getCacheMisses();
}
// functions for testing
int getCacheHits() {
return nodeCache.getCacheHits();
}
public void setNodeCacheSize(int size) {
if (nodeCache != null && !isGlobalNodeCache && nodeCache.getMaxSize() != size) {
nodeCache.setMaxSize(size);
}
}