package com.planet_ink.coffee_mud.core.collections; import java.util.*; import com.planet_ink.coffee_mud.core.CMParms; /* Copyright 2016-2019 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. */ @SuppressWarnings("unchecked") public class MultiList<T> implements List<T> { private final Vector<List<T>> collections = new Vector<List<T>>(); public MultiList(final List<T>... colls) { super(); if(colls==null) return; for(final List<T> list : colls) collections.add(list); collections.trimToSize(); } public MultiList() { super(); } @Override public boolean add(final T arg0) { if(collections.size()>0) { try { final List<T> coll=collections.get(collections.size()-1); return coll.add(arg0); } catch (final Exception e) { } } return false; } public boolean addAll(final List<T> arg0) { collections.add(arg0); collections.trimToSize(); return true; } @Override public void clear() { collections.clear(); } @Override public boolean contains(final Object arg0) { if(collections.size()>0) { try { for(int c=0;c<collections.size();c++) { if(collections.get(c).contains(arg0)) return true; } } catch (final Exception e) { } } return false; } @Override public boolean containsAll(final Collection<?> arg0) { for(final Object arg : arg0) { if(!contains(arg)) return false; } return true; } @Override public boolean isEmpty() { if(collections.size()>0) { try { for(int c=0;c<collections.size();c++) { if(collections.get(c).size()>0) return false; } } catch (final Exception e) { } } return true; } @Override public Iterator<T> iterator() { return new MultiIterable<T>(collections,size()).iterator(); } @Override public boolean remove(final Object arg0) { if(collections.size()>0) { try { for(int c=0;c<collections.size();c++) { if(collections.get(c).remove(arg0)) return true; } } catch (final Exception e) { } } return false; } @Override public boolean removeAll(final Collection<?> arg0) { if(collections.size()>0) { boolean returnable=false; try { for(int c=0;c<collections.size();c++) returnable = collections.get(c).removeAll(arg0) || returnable; } catch (final Exception e) { } return returnable; } return false; } @Override public boolean addAll(final int index, final Collection<? extends T> arg0) { if(collections.size()>0) { for(final Object o : arg0) this.add(index,(T)o); } return true; } @Override public boolean retainAll(final Collection<?> arg0) { if(collections.size()>0) { boolean returnable=false; try { for(int c=0;c<collections.size();c++) returnable = collections.get(c).retainAll(arg0) || returnable; } catch (final Exception e) { } return returnable; } return false; } @Override public int size() { int total=0; if(collections.size()>0) { try { for(int c=0;c<collections.size();c++) total += collections.get(c).size(); } catch (final Exception e) { } } return total; } @Override public Object[] toArray() { final Object[][] arrays=new Object[collections.size()][]; try { for(int c=0;c<collections.size();c++) arrays[c]=collections.get(c).toArray(); } catch (final Exception e) { } return CMParms.combine(arrays); } @SuppressWarnings("hiding") @Override public <T> T[] toArray(T[] arg0) { final Object[] objs=toArray(); if(arg0.length<objs.length) arg0=Arrays.copyOf(arg0, objs.length); int i=0; for(final Object o : objs) arg0[i++]=(T)o; return arg0; } @Override public boolean addAll(final Collection<? extends T> c) { if(c instanceof List) collections.add((List<T>)c); else collections.add((List<T>)Arrays.asList(c.toArray())); collections.trimToSize(); return true; } @Override public T get(int index) { for(final List<T> list : collections) { if(index < list.size()) return list.get(index); index -= list.size(); } throw new IndexOutOfBoundsException (); } @Override public T set(int index, final T element) { for(final List<T> list : collections) { if(index < list.size()) return list.set(index,element); index -= list.size(); } throw new IndexOutOfBoundsException (); } @Override public void add(int index, final T element) { if(collections.size()==0) collections.add(new Vector<T>()); List<T> list = null; for(int t=0;t<collections.size();t++) { list=collections.get(t); if(index < list.size()) { list.add(index,element); return; } else if(index == list.size()) { list.add(element); return; } index -= list.size(); } } @Override public T remove(int index) { for(final List<T> list : collections) { if(index < list.size()) return list.remove(index); index -= list.size(); } return null; } @Override public int indexOf(final Object o) { int indexBase = 0; for(final List<T> list : collections) { final int x=list.indexOf(o); if(x>=0) return indexBase+x; indexBase += list.size(); } return -1; } @Override public int lastIndexOf(final Object o) { int indexBase = size(); for(int x=collections.size()-1;x>=0;x--) { final List<T> list = collections.get(x); indexBase -= list.size(); final int y=list.lastIndexOf(o); if(y>=0) return indexBase+y; } return -1; } @Override public ListIterator<T> listIterator() { return new MultiListListIterator<T>(collections); } @Override public ListIterator<T> listIterator(final int index) { final ListIterator<T> iter=listIterator(); while(iter.nextIndex() < index) iter.next(); return iter; } @Override public List<T> subList(final int fromIndex, final int toIndex) { if((toIndex<fromIndex) ||(fromIndex<0) ||(fromIndex>=size()) ||(toIndex>size())) throw new java.util.NoSuchElementException(); final List<T> newList=new Vector<T>(); int x=fromIndex; for(final ListIterator<T> i=listIterator(fromIndex);i.hasNext() && (x<toIndex);x++) newList.add(i.next()); return newList; } }