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This is the master POM file for Oracle's Implementation of the JSF 2.2 Specification.
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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.faces.context;
import java.util.AbstractMap;
import java.util.Map;
import java.util.Set;
import java.util.Collection;
import java.util.Iterator;
import java.util.AbstractSet;
import java.util.AbstractCollection;
import java.util.Enumeration;
/**
*
* This is the base Map for all Map instances required by @{link ExternalContext}.
*
*/
abstract class BaseContextMap extends AbstractMap {
private Set> entrySet;
private Set keySet;
private Collection values;
// -------------------------------------------------------- Methods from Map
// Supported by maps if overridden
@Override
public void clear() {
throw new UnsupportedOperationException();
}
// Supported by maps if overridden
@Override
public void putAll(Map t) {
throw new UnsupportedOperationException();
}
public Set> entrySet() {
if (entrySet == null) {
entrySet = new EntrySet();
}
return entrySet;
}
@Override
public Set keySet() {
if (keySet == null) {
keySet = new KeySet();
}
return keySet;
}
@Override
public Collection values() {
if (values == null) {
values = new ValueCollection();
}
return values;
}
// Supported by maps if overridden
@Override
public V remove(Object key) {
throw new UnsupportedOperationException();
}
// ------------------------------------------------------- Protected Methods
protected boolean removeKey(Object key) {
return (this.remove(key) != null);
}
protected boolean removeValue(Object value) {
boolean valueRemoved = false;
if (value == null) {
return false;
}
if (containsValue(value)) {
for (Iterator i = entrySet().iterator(); i.hasNext(); ) {
Map.Entry e = (Map.Entry) i.next();
if (value.equals(e.getValue())) {
valueRemoved = (remove(e.getKey()) != null);
}
}
}
return valueRemoved;
}
protected abstract Iterator> getEntryIterator();
protected abstract Iterator getKeyIterator();
protected abstract Iterator getValueIterator();
// ----------------------------------------------------------- Inner Classes
abstract class BaseSet extends AbstractSet {
public int size() {
int size = 0;
for (Iterator i = iterator(); i.hasNext(); size++) {
i.next();
}
return size;
}
}
class EntrySet extends BaseSet> {
public Iterator> iterator() {
return getEntryIterator();
}
@Override
public boolean remove(Object o) {
return o instanceof Map.Entry
&& removeKey(((Map.Entry) o).getKey());
}
}
class KeySet extends BaseSet {
public Iterator iterator() {
return getKeyIterator();
}
@Override
public boolean contains(Object o) {
return BaseContextMap.this.containsKey(o);
}
@Override
public boolean remove(Object o) {
return o instanceof String && removeKey(o);
}
}
class ValueCollection extends AbstractCollection {
public int size() {
int size = 0;
for (Iterator i = iterator(); i.hasNext(); size++) {
i.next();
}
return size;
}
public Iterator iterator() {
return getValueIterator();
}
@Override
public boolean remove(Object o) {
return removeValue(o);
}
}
abstract class BaseIterator implements Iterator {
protected Enumeration e;
protected String currentKey;
protected boolean removeCalled = false;
BaseIterator(Enumeration e) {
this.e = e;
}
public boolean hasNext() {
return e.hasMoreElements();
}
public String nextKey() {
removeCalled = false;
currentKey = (String) e.nextElement();
return currentKey;
}
}
class EntryIterator extends BaseIterator> {
EntryIterator(Enumeration e) {
super(e);
}
public void remove() {
if (currentKey != null && !removeCalled) {
removeCalled = true;
removeKey(currentKey);
} else {
throw new IllegalStateException();
}
}
public Map.Entry next() {
nextKey();
return new Entry(currentKey, get(currentKey));
}
}
class KeyIterator extends BaseIterator {
KeyIterator(Enumeration e) {
super(e);
}
public void remove() {
if (currentKey != null && !removeCalled) {
removeCalled = true;
removeKey(currentKey);
} else {
throw new IllegalStateException();
}
}
public String next() {
return nextKey();
}
}
class ValueIterator extends BaseIterator {
ValueIterator(Enumeration e) {
super(e);
}
public void remove() {
if (currentKey != null && !removeCalled) {
removeCalled = true;
removeValue(get(currentKey));
} else {
throw new IllegalStateException();
}
}
public V next() {
nextKey();
return get(currentKey);
}
}
static class Entry implements Map.Entry {
// immutable Entry
private final String key;
private final V value;
Entry(String key, V value) {
this.key = key;
this.value = value;
}
public String getKey() {
return key;
}
public V getValue() {
return value;
}
// No support of setting the value
public V setValue(V value) {
throw new UnsupportedOperationException();
}
@Override
public int hashCode() {
return ((key == null ? 0 : key.hashCode()) ^
(value == null ? 0 : value.hashCode()));
}
@Override
public boolean equals(Object obj) {
if (obj == null || !(obj instanceof Map.Entry)) {
return false;
}
Map.Entry input = (Map.Entry) obj;
Object inputKey = input.getKey();
Object inputValue = input.getValue();
if (inputKey == key ||
(inputKey != null && inputKey.equals(key))) {
if (inputValue == value ||
(inputValue != null && inputValue.equals(value))) {
return true;
}
}
return false;
}
}
}