package com.planet_ink.coffee_mud.core.collections; import java.util.*; /* Copyright 2010-2016 Bo Zimmerman 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. */ public class ConvertingList<L,K> implements List<K> { private final List<L> list; Converter<L, K> converter; public ConvertingList(List<L> l, Converter<L, K> conv) { list=l; converter=conv; } @Override public boolean add(K arg0) { throw new java.lang.IllegalArgumentException(); } @Override public void add(int arg0, K arg1) { throw new java.lang.IllegalArgumentException(); } @Override public boolean addAll(Collection<? extends K> arg0) { throw new java.lang.IllegalArgumentException(); } @Override public boolean addAll(int arg0, Collection<? extends K> arg1) { throw new java.lang.IllegalArgumentException(); } @Override public void clear() { throw new java.lang.IllegalArgumentException(); } @Override public boolean contains(Object arg0) { for(int x=0;x<size();x++) if((arg0==null)?get(x)==null:arg0.equals(get(x))) return true; return list.contains(arg0); } @Override public boolean containsAll(Collection<?> arg0) { for(final Object o : arg0) if(!contains(o)) return false; return true; } @Override public K get(int arg0) { return converter.convert(list.get(arg0)); } @Override public int indexOf(Object arg0) { for(int x=0;x<size();x++) if((arg0==null)?get(x)==null:arg0.equals(get(x))) return x; return list.lastIndexOf(arg0); } @Override public boolean isEmpty() { return list.isEmpty(); } @Override public Iterator<K> iterator() { return new ConvertingIterator<L, K>(list.iterator(),converter); } @Override public int lastIndexOf(Object arg0) { for(int x=size()-1;x>=0;x--) if((arg0==null)?get(x)==null:arg0.equals(get(x))) return x; return list.lastIndexOf(arg0); } @Override public ListIterator<K> listIterator() { return new ConvertingListIterator<L,K>(list.listIterator(), converter); } @Override public ListIterator<K> listIterator(int arg0) { return new ConvertingListIterator<L,K>(list.listIterator(arg0), converter); } @Override public boolean remove(Object arg0) { throw new java.lang.IllegalArgumentException(); } @Override public K remove(int arg0) { throw new java.lang.IllegalArgumentException(); } @Override public boolean removeAll(Collection<?> arg0) { throw new java.lang.IllegalArgumentException(); } @Override public boolean retainAll(Collection<?> arg0) { throw new java.lang.IllegalArgumentException(); } @Override public K set(int arg0, K arg1) { throw new java.lang.IllegalArgumentException(); } @Override public int size() { return list.size(); } @Override public List<K> subList(int arg0, int arg1) { return new ConvertingList<L,K>(list.subList(arg0,arg1),converter); } @Override public Object[] toArray() { final Object[] obj=new Object[list.size()]; for(int x=obj.length-1;x>=0;x--) obj[x]=converter.convert(list.get(x)); return obj; } @SuppressWarnings("unchecked") @Override public <T> T[] toArray(T[] a) { if (a.length < list.size()) return (T[]) Arrays.copyOf(toArray(), list.size(), a.getClass()); System.arraycopy(toArray(), 0, a, 0, list.size()); if (a.length > list.size()) a[list.size()] = null; return a; } }