/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
* 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.kie.workbench.common.stunner.core.registry.impl;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import org.kie.workbench.common.stunner.core.registry.DynamicRegistry;
class ListRegistry<T> implements DynamicRegistry<T> {
private final KeyProvider<T> keyProvider;
private final List<T> items;
public ListRegistry(final KeyProvider<T> keyProvider,
final List<T> items) {
this.keyProvider = keyProvider;
this.items = items;
}
public void add(final int pos,
final T item) {
items.add(pos,
item);
}
@Override
public void register(final T item) {
items.add(item);
}
public boolean remove(final T item) {
return items.remove(item);
}
@Override
public boolean contains(final T item) {
return items.contains(item);
}
@Override
public boolean isEmpty() {
return items.isEmpty();
}
public Collection<T> getItems() {
return Collections.unmodifiableList(items);
}
public T getItemByKey(final String id) {
if (null != id) {
for (final T item : items) {
final String itemId = getItemKey(item);
if (id.equals(itemId)) {
return item;
}
}
}
return null;
}
public void clear() {
items.clear();
}
public int indexOf(final T item) {
return items.indexOf(item);
}
private String getItemKey(final T item) {
return keyProvider.getKey(item);
}
}