Files
NGECore2/src/resources/objects/SWGList.java
T
2013-12-12 14:17:50 +00:00

384 lines
8.4 KiB
Java

/*******************************************************************************
* Copyright (c) 2013 <Project SWG>
*
* This File is part of NGECore2.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Using NGEngine to work with NGECore2 is making a combined work based on NGEngine.
* Therefore all terms and conditions of the GNU Lesser General Public License cover the combination.
******************************************************************************/
package resources.objects;
import java.nio.ByteOrder;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import org.apache.mina.core.buffer.IoBuffer;
import com.sleepycat.persist.model.NotPersistent;
import com.sleepycat.persist.model.Persistent;
/* A SWGList element MUST implement IDelta, or it will refuse to work with it */
@Persistent
public class SWGList<E> implements List<E> {
private List<E> list = new ArrayList<E>();
@NotPersistent
private int updateCounter = 1;
private ObjectMessageBuilder messageBuilder;
private byte viewType;
private short updateType;
@NotPersistent
protected final Object objectMutex = new Object();
public SWGList() { }
public SWGList(ObjectMessageBuilder messageBuilder, int viewType, int updateType) {
this.messageBuilder = messageBuilder;
this.viewType = (byte) viewType;
this.updateType = (short) updateType;
}
@Override
public boolean add(E e) {
synchronized(objectMutex) {
if (list.add(e) && e instanceof IDelta) {
queue(item(1, list.lastIndexOf(e), ((IDelta) e).getBytes(), true, true));
return true;
}
return false;
}
}
@Override
public void add(int index, E element) {
synchronized(objectMutex) {
if (element instanceof IDelta) {
list.add(index, element);
queue(item(1, index, ((IDelta) element).getBytes(), true, true));
}
}
}
@Override
public boolean addAll(Collection<? extends E> c) {
synchronized(objectMutex) {
if (!c.isEmpty()) {
List<byte[]> buffer = new ArrayList<byte[]>();
boolean success = false;
for (E element : c) {
if (element instanceof IDelta) {
if (list.add(element)) {
buffer.add(item(1, list.lastIndexOf(element), ((IDelta) element).getBytes(), true, true));
success = true;
}
} else {
return false;
}
}
if (success == true) {
queue(buffer);
} else {
return false;
}
}
return false;
}
}
@Override
public boolean addAll(int index, Collection<? extends E> c) {
synchronized(objectMutex) {
if (!c.isEmpty()) {
List<byte[]> buffer = new ArrayList<byte[]>();
for (E element : c) {
if (element instanceof IDelta) {
list.add(index, element);
buffer.add(item(1, index, ((IDelta) element).getBytes(), true, true));
index++;
} else {
return false;
}
}
queue(buffer);
return true;
}
return false;
}
}
@Override
public void clear() {
synchronized(objectMutex) {
list.clear();
queue(item(4, 0, null, false, false));
}
}
@Override
public boolean contains(Object o) {
synchronized(objectMutex) {
return list.contains(o);
}
}
@Override
public boolean containsAll(Collection<?> c) {
synchronized(objectMutex) {
return list.containsAll(c);
}
}
@Override
public E get(int index) {
synchronized(objectMutex) {
return list.get(index);
}
}
public List<E> get() {
return list;
}
@Override
public int indexOf(Object o) {
synchronized(objectMutex) {
return list.indexOf(o);
}
}
@Override
public boolean isEmpty() {
synchronized(objectMutex) {
return list.isEmpty();
}
}
@Override
public Iterator<E> iterator() {
synchronized(objectMutex) {
return list.iterator();
}
}
@Override
public int lastIndexOf(Object o) {
synchronized(objectMutex) {
return list.lastIndexOf(o);
}
}
@Override
public ListIterator<E> listIterator() {
synchronized(objectMutex) {
return list.listIterator();
}
}
@Override
public ListIterator<E> listIterator(int index) {
synchronized(objectMutex) {
return listIterator(index);
}
}
@Override
public boolean remove(Object o) {
synchronized(objectMutex) {
int index = list.indexOf(o);
if (list.remove(o)) {
queue(item(1, index, null, true, false));
return true;
} else {
return false;
}
}
}
@Override
public E remove(int index) {
synchronized(objectMutex) {
E element = list.remove(index);
queue(item(1, index, null, true, false));
return (E) element;
}
}
@Override
public boolean removeAll(Collection<?> c) {
synchronized(objectMutex) {
if (!c.isEmpty()) {
List<byte[]> buffer = new ArrayList<byte[]>();
int index;
boolean success = false;
for (Object element : c) {
index = list.indexOf(element);
if (list.remove(element)) {
buffer.add(item(0, index, null, true, false));
success = true;
}
}
if (success) {
queue(buffer);
}
return success;
}
return false;
}
}
@Override
public boolean retainAll(Collection<?> c) {
synchronized(objectMutex) {
return list.retainAll(c);
}
}
@Override
public E set(int index, E element) {
synchronized(objectMutex) {
if (element instanceof IDelta) {
E previousElement = list.set(index, element);
queue(item(2, index, ((IDelta) element).getBytes(), true, true));
return previousElement;
}
return null;
}
}
public boolean set(List<E> list) {
synchronized(objectMutex) {
byte[] newListData = { 0x03 };
if (!list.isEmpty()) {
for (E element : list) {
if (element instanceof IDelta) {
IoBuffer buffer = messageBuilder.bufferPool.allocate((newListData.length + ((IDelta) element).getBytes().length), false).order(ByteOrder.LITTLE_ENDIAN);
buffer.put(newListData);
buffer.put(((IDelta) element).getBytes());
newListData = buffer.array();
} else {
return false;
}
}
this.list = list;
updateCounter++;
queue(newListData);
return true;
}
return false;
}
}
@Override
public int size() {
synchronized(objectMutex) {
return list.size();
}
}
@Override
public List<E> subList(int fromIndex, int toIndex) {
synchronized(objectMutex) {
return list.subList(fromIndex, toIndex);
}
}
@Override
public Object[] toArray() {
synchronized(objectMutex) {
return list.toArray();
}
}
@Override
public <T> T[] toArray(T[] a) {
synchronized(objectMutex) {
return list.toArray(a);
}
}
public int getUpdateCounter() {
return updateCounter;
}
public Object getMutex() {
return objectMutex;
}
private byte[] item(int type, int index, byte[] data, boolean useIndex, boolean useData) {
int size = 1 + ((useIndex) ? 2 : 0) + ((useData) ? data.length : 0);
IoBuffer buffer = messageBuilder.bufferPool.allocate((size), false).order(ByteOrder.LITTLE_ENDIAN);
buffer.put((byte) type);
if (useIndex) buffer.putShort((short) index);
if (useData) buffer.put(data);
updateCounter++;
return buffer.array();
}
private void queue(byte[] data) {
IoBuffer buffer = messageBuilder.bufferPool.allocate((data.length + 8), false).order(ByteOrder.LITTLE_ENDIAN);
buffer.putInt(1);
buffer.putInt(updateCounter);
buffer.put(data);
messageBuilder.sendListDelta(viewType, updateType, buffer);
}
private void queue(List<byte[]> data) {
int size = 0;
for (byte[] queued : data) {
size += queued.length;
}
IoBuffer buffer = messageBuilder.bufferPool.allocate((size + 8), false).order(ByteOrder.LITTLE_ENDIAN);
buffer.putInt(data.size());
buffer.putInt(updateCounter);
for (byte[] queued : data) buffer.put(queued);
messageBuilder.sendListDelta(viewType, updateType, buffer);
}
}