org.apache.jackrabbit.oak.security.authorization.permission.PrincipalPermissionEntries Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jackrabbit.oak.security.authorization.permission;
import static java.util.Collections.emptySet;
import java.util.Collection;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* {@code PermissionEntries} holds the permission entries of one principal
*/
class PrincipalPermissionEntries {
/**
* max size of the emptyPaths cache.
*/
private static int MAX_SIZE = Integer.getInteger("oak.PrincipalPermissionEntries.maxSize", 1000);
private final long expectedSize;
/**
* indicating if all entries were loaded.
*/
private boolean fullyLoaded;
/**
* map of permission entries, accessed by path
*/
private Map> entries = new HashMap<>();
private final Map emptyPaths;
PrincipalPermissionEntries() {
this(Long.MAX_VALUE);
}
PrincipalPermissionEntries(long expectedSize) {
this.expectedSize = expectedSize;
this.fullyLoaded = (expectedSize == 0);
this.emptyPaths = new LinkedHashMap() {
@Override
protected boolean removeEldestEntry(Map.Entry eldest) {
return size() > MAX_SIZE;
}
};
}
long getSize() {
return entries.size() + emptyPaths.size();
}
boolean isFullyLoaded() {
return fullyLoaded;
}
void setFullyLoaded(boolean fullyLoaded) {
this.fullyLoaded = fullyLoaded;
}
@NotNull
Map> getEntries() {
return entries;
}
@Nullable
Collection getEntriesByPath(@NotNull String path) {
return emptyPaths.containsKey(path) ? emptySet() : entries.get(path);
}
void putEntriesByPath(@NotNull String path, @NotNull Collection pathEntries) {
entries.put(path, pathEntries);
if (entries.size() >= expectedSize) {
setFullyLoaded(true);
}
}
void rememberNotAccessControlled(@NotNull String path) {
emptyPaths.put(path, null);
}
void putAllEntries(@NotNull Map> allEntries) {
entries.putAll(allEntries);
setFullyLoaded(true);
}
}