org.wildfly.security.authz.MapAttributes Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
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/*
* JBoss, Home of Professional Open Source.
* Copyright 2015 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed 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.wildfly.security.authz;
import java.util.AbstractCollection;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.wildfly.common.Assert;
/**
* A map-backed attributes collection.
*
* @author David M. Lloyd
*/
public class MapAttributes implements Attributes {
// backing map
private final Map map;
// cache fields
private HashMap entryCache;
private Collection entries;
private Collection values;
/**
* Construct an instance using a hash map for backing store.
*/
public MapAttributes() {
this.map = new HashMap<>();
}
/**
* Construct a new instance copying mappings from an original map.
*
* @param original the original map
*/
public MapAttributes(Map> original) {
Assert.checkNotNullParam("original", original);
Map map = new HashMap<>(original.size());
for (Map.Entry> entry : original.entrySet()) {
map.put(entry.getKey(), new EntriesList(entry.getValue()));
}
this.map = map;
}
/**
* Construct a new instance copying mappings from an original attributes collection.
*
* @param original the original collection
*/
public MapAttributes(Attributes original) {
Assert.checkNotNullParam("original", original);
Map map = new HashMap<>(original.size());
for (Entry entry : original.entries()) {
final EntriesList entriesList = new EntriesList(entry);
if (! entriesList.isEmpty()) map.put(entry.getKey(), entriesList);
}
this.map = map;
}
public Set keySet() {
return map.keySet();
}
public Collection values() {
final Collection values = this.values;
if (values != null) {
return values;
}
return this.values = Attributes.super.values();
}
public Collection entries() {
final Collection entries = this.entries;
if (entries != null) {
return entries;
}
return this.entries = new AbstractCollection() {
public Iterator iterator() {
final Iterator iterator = map.keySet().iterator();
return new Iterator() {
public boolean hasNext() {
return iterator.hasNext();
}
public Entry next() {
return get(iterator.next());
}
public void remove() {
iterator.remove();
}
};
}
public int size() {
return MapAttributes.this.size();
}
};
}
public int size(final String key) {
final EntriesList list = map.get(key);
return list == null ? 0 : list.size();
}
public boolean remove(final String key) {
return map.remove(key) != null;
}
public void add(final String key, final int idx, final String value) {
EntriesList list = map.get(key);
if (list == null) {
map.put(key, list = new EntriesList());
}
list.add(idx, value);
}
public String get(final String key, final int idx) {
EntriesList list = map.get(key);
return list == null ? null : list.get(idx);
}
public String set(final String key, final int idx, final String value) {
EntriesList list = map.get(key);
if (list == null) {
throw new IndexOutOfBoundsException();
}
return list.set(idx, value);
}
public String remove(final String key, final int idx) {
EntriesList list = map.get(key);
if (list == null) {
throw new IndexOutOfBoundsException();
}
final String result = list.remove(idx);
if (list.isEmpty()) {
map.remove(key);
}
return result;
}
public List copyAndRemove(final String key) {
final EntriesList old = map.remove(key);
return old == null ? new ArrayList<>(0) : old;
}
public List copyAndReplace(final String key, final Collection values) {
final EntriesList old = map.replace(key, new EntriesList(values));
return old == null ? new ArrayList<>(0) : old;
}
public boolean containsKey(final String key) {
return map.containsKey(key);
}
public boolean containsValue(final String key, final String value) {
final EntriesList list = map.get(key);
return list != null && list.contains(value);
}
public void removeRange(final String key, final int from, final int to) {
final EntriesList list = map.get(key);
if (list == null) {
throw new IndexOutOfBoundsException();
}
list.removeRange(from, to);
}
public int indexOf(final String key, final String value) {
EntriesList list = map.get(key);
return list == null ? -1 : list.indexOf(value);
}
public int lastIndexOf(final String key, final String value) {
EntriesList list = map.get(key);
return list == null ? -1 : list.lastIndexOf(value);
}
public boolean set(final String key, final int idx, final String expect, final String update) {
EntriesList list = map.get(key);
if (list == null || !list.get(idx).equals(expect)) {
return false;
}
list.set(idx, update);
return true;
}
public String getFirst(final String key) {
EntriesList list = map.get(key);
return list == null ? null : list.get(0);
}
public String getLast(final String key) {
EntriesList list = map.get(key);
return list == null ? null : list.get(list.size() - 1);
}
public void addFirst(final String key, final String value) {
EntriesList list = map.get(key);
if (list == null) {
map.put(key, list = new EntriesList());
}
list.add(0, value);
}
public void addLast(final String key, final String value) {
EntriesList list = map.get(key);
if (list == null) {
map.put(key, list = new EntriesList());
}
list.add(value);
}
public boolean removeFirst(final String key, final String value) {
EntriesList list = map.get(key);
if (list == null) {
return false;
}
int idx = list.indexOf(value);
if (idx == -1) {
return false;
}
list.remove(idx);
if (list.isEmpty()) {
map.remove(key);
}
return true;
}
public boolean removeLast(final String key, final String value) {
EntriesList list = map.get(key);
if (list == null) {
return false;
}
int idx = list.lastIndexOf(value);
if (idx == -1) {
return false;
}
list.remove(idx);
if (list.isEmpty()) {
map.remove(key);
}
return true;
}
public String removeFirst(final String key) {
EntriesList list = map.get(key);
if (list == null) {
return null;
}
final String removed = list.remove(0);
if (list.isEmpty()) {
map.remove(key);
}
return removed;
}
public String removeLast(final String key) {
EntriesList list = map.get(key);
if (list == null) {
return null;
}
final String removed = list.remove(list.size() - 1);
if (list.isEmpty()) {
map.remove(key);
}
return removed;
}
public boolean remove(final String key, final int idx, final String value) {
EntriesList list = map.get(key);
if (list == null) {
return false;
}
if (! list.get(idx).equals(value)) {
return false;
}
list.remove(idx);
if (list.isEmpty()) {
map.remove(key);
}
return true;
}
public boolean removeAll(final String key, final String value) {
EntriesList list = map.get(key);
return list != null && list.removeAll(Collections.singleton(value));
}
public Entry get(final String key) {
HashMap entryCache = this.entryCache;
if (entryCache == null) {
entryCache = this.entryCache = new HashMap<>();
}
return entryCache.computeIfAbsent(key, s -> new SimpleAttributesEntry(this, s));
}
public int size() {
return map.size();
}
public boolean isEmpty() {
return map.isEmpty();
}
public void clear() {
map.clear();
}
static final class EntriesList extends ArrayList implements Set {
private static final long serialVersionUID = 8113580421577650775L;
EntriesList(final int initialCapacity) {
super(initialCapacity);
}
EntriesList() {
}
EntriesList(final Collection c) {
super(c);
}
public void removeRange(final int fromIndex, final int toIndex) {
super.removeRange(fromIndex, toIndex);
}
}
}