@Override
public String getNamespaceForPrefix(String prefix) {
Lock lock = this.namespacesLock.readLock();
try {
lock.lock();
CheckArg.isNotNull(prefix, "prefix");
return cache.getNamespaceForPrefix(prefix);
} finally {
lock.unlock();
}
}
@Override
public Set<Namespace> getNamespaces() {
final Lock lock = this.namespacesLock.readLock();
try {
lock.lock();
// Just return what's in the cache ...
return cache.getNamespaces();
} finally {
lock.unlock();
}
}
@Override
public boolean isRegisteredNamespaceUri(String namespaceUri) {
CheckArg.isNotNull(namespaceUri, "namespaceUri");
Lock lock = this.namespacesLock.readLock();
try {
lock.lock();
return cache.isRegisteredNamespaceUri(namespaceUri);
} finally {
lock.unlock();
}
}
@Override
public Set<String> getRegisteredNamespaceUris() {
final Lock lock = this.namespacesLock.readLock();
try {
lock.lock();
// Just return what's in the cache ...
return cache.getRegisteredNamespaceUris();
} finally {
lock.unlock();
}
}
@Override
public String getPrefixForNamespaceUri(String namespaceUri, boolean generateIfMissing) {
CheckArg.isNotNull(namespaceUri, "namespaceUri");
Lock lock = this.namespacesLock.readLock();
try {
lock.lock();
// Try the cache first ...
String prefix = cache.getPrefixForNamespaceUri(namespaceUri, false);
if (prefix == null && generateIfMissing) {
SystemContent systemContent = systemContent(!generateIfMissing);
prefix = systemContent.readNamespacePrefix(namespaceUri, generateIfMissing);
if (prefix != null) {
systemContent.save();
cache.register(prefix, namespaceUri);
}
}
return prefix;
} finally {
lock.unlock();
}
}