/* * Copyright 2010-2012 Luca Molino (molino.luca--at--gmail.com) * * 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 com.orientechnologies.orient.object.serialization; import java.io.Serializable; import java.util.ArrayList; import java.util.Collection; import java.util.Iterator; import java.util.List; import java.util.ListIterator; import java.util.Map; import com.orientechnologies.orient.core.record.ORecord; import com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer; @SuppressWarnings({ "unchecked" }) public class OObjectCustomSerializerList<TYPE> implements List<TYPE>, OObjectLazyCustomSerializer<List<TYPE>>, Serializable { private static final long serialVersionUID = -8541477416577361792L; private ORecord sourceRecord; private final List<Object> serializedList; private final ArrayList<Object> list = new ArrayList<Object>(); private boolean converted = false; private final Class<?> deserializeClass; public OObjectCustomSerializerList(final Class<?> iDeserializeClass, final ORecord iSourceRecord, final List<Object> iRecordList) { this.sourceRecord = iSourceRecord; this.serializedList = iRecordList; this.deserializeClass = iDeserializeClass; for (int i = 0; i < iRecordList.size(); i++) { list.add(i, null); } } public OObjectCustomSerializerList(final Class<?> iDeserializeClass, final ORecord iSourceRecord, final List<Object> iRecordList, final Collection<? extends TYPE> iSourceList) { this.sourceRecord = iSourceRecord; this.serializedList = iRecordList; this.deserializeClass = iDeserializeClass; addAll(iSourceList); for (int i = iSourceList.size(); i < iRecordList.size(); i++) { list.add(i, null); } } public Iterator<TYPE> iterator() { return new OObjectCustomSerializerIterator<TYPE>(deserializeClass, sourceRecord, serializedList.iterator()); } public boolean contains(final Object o) { boolean underlyingContains = serializedList.contains(OObjectEntitySerializer.serializeFieldValue(deserializeClass, o)); return underlyingContains || list.contains(o); } public boolean add(TYPE element) { serializedList.add(OObjectEntitySerializer.serializeFieldValue(deserializeClass, element)); return list.add(element); } public void add(int index, TYPE element) { setDirty(); serializedList.add(index, OObjectEntitySerializer.serializeFieldValue(deserializeClass, element)); list.add(index, element); } public TYPE get(final int index) { TYPE o = (TYPE) list.get(index); if (o == null) { Object toDeserialize = serializedList.get(index); o = (TYPE) OObjectEntitySerializer.deserializeFieldValue(deserializeClass, toDeserialize); list.set(index, o); } return o; } public int indexOf(final Object o) { return list.indexOf(o); } public int lastIndexOf(final Object o) { return list.lastIndexOf(o); } public Object[] toArray() { convertAll(); return list.toArray(); } public <T> T[] toArray(final T[] a) { convertAll(); return list.toArray(a); } public int size() { return serializedList.size(); } public boolean isEmpty() { return serializedList.isEmpty(); } public boolean remove(Object o) { setDirty(); int indexOfO = list.indexOf(o); serializedList.remove(indexOfO); return list.remove(o); } public boolean containsAll(Collection<?> c) { for (Object o : c) { if (!contains(o)) return false; } return true; } public boolean addAll(Collection<? extends TYPE> c) { boolean dirty = false; for (TYPE element : c) { dirty = add(element) || dirty; } if (dirty) setDirty(); return dirty; } public boolean addAll(int index, Collection<? extends TYPE> c) { for (TYPE element : c) { add(index, element); index++; } if (c.size() > 0) setDirty(); return c.size() > 0; } public boolean removeAll(Collection<?> c) { boolean dirty = true; for (Object o : c) { dirty = dirty || remove(o); } if (dirty) setDirty(); return dirty; } public boolean retainAll(Collection<?> c) { boolean modified = false; Iterator<TYPE> e = iterator(); while (e.hasNext()) { if (!c.contains(e.next())) { remove(e); modified = true; } } return modified; } public void clear() { setDirty(); serializedList.clear(); list.clear(); } public TYPE set(int index, TYPE element) { serializedList.set(index, OObjectEntitySerializer.serializeFieldValue(deserializeClass, element)); return (TYPE) list.set(index, element); } public TYPE remove(int index) { serializedList.remove(index); return (TYPE) list.remove(index); } public ListIterator<TYPE> listIterator() { return (ListIterator<TYPE>) list.listIterator(); } public ListIterator<TYPE> listIterator(int index) { return (ListIterator<TYPE>) list.listIterator(index); } public List<TYPE> subList(int fromIndex, int toIndex) { return (List<TYPE>) list.subList(fromIndex, toIndex); } public boolean isConverted() { return converted; } public void detach() { convertAll(); } public void detach(boolean nonProxiedInstance) { convertAll(); } public void detachAll(boolean nonProxiedInstance, Map<Object, Object> alreadyDetached, Map<Object, Object> lazyObjects) { convertAll(); } protected void convertAll() { if (converted) return; for (int i = 0; i < size(); ++i) convert(i); converted = true; } public void setDirty() { if (sourceRecord != null) sourceRecord.setDirty(); } @Override public List<TYPE> getNonOrientInstance() { List<TYPE> list = new ArrayList<TYPE>(); list.addAll(this); return this; } /** * Convert the item requested. * * @param iIndex * Position of the item to convert */ private void convert(final int iIndex) { if (converted) return; Object o = list.get(iIndex); if (o == null) { o = serializedList.get(iIndex); list.set(iIndex, OObjectEntitySerializer.deserializeFieldValue(deserializeClass, o)); } } protected boolean indexLoaded(int iIndex) { return list.get(iIndex) != null; } @Override public String toString() { return list.toString(); } @Override public Object getUnderlying() { return serializedList; } }