package com.sun.org.apache.xerces.internal.impl.xs.util;
import com.sun.org.apache.xerces.internal.xs.XSObject;
import com.sun.org.apache.xerces.internal.xs.XSObjectList;
import java.lang.reflect.Array;
import java.util.AbstractList;
import java.util.Iterator;
import java.util.ListIterator;
import java.util.NoSuchElementException;
@SuppressWarnings("unchecked")
public class XSObjectListImpl extends AbstractList<XSObject> implements XSObjectList {
public static final XSObjectListImpl EMPTY_LIST = new XSObjectListImpl(new XSObject[0], 0);
private static final ListIterator<XSObject> EMPTY_ITERATOR = new EmptyIterator();
static class EmptyIterator implements ListIterator<XSObject> {
public boolean hasNext() {
return false;
}
public XSObject next() {
throw new NoSuchElementException();
}
public boolean hasPrevious() {
return false;
}
public XSObject previous() {
throw new NoSuchElementException();
}
public int nextIndex() {
return 0;
}
public int previousIndex() {
return -1;
}
public void remove() {
throw new UnsupportedOperationException();
}
public void set(XSObject object) {
throw new UnsupportedOperationException();
}
public void add(XSObject object) {
throw new UnsupportedOperationException();
}
}
private static final int DEFAULT_SIZE = 4;
private XSObject[] fArray = null;
private int fLength = 0;
public XSObjectListImpl() {
fArray = new XSObject[DEFAULT_SIZE];
fLength = 0;
}
public XSObjectListImpl(XSObject[] array, int length) {
fArray = array;
fLength = length;
}
public int getLength() {
return fLength;
}
public XSObject item(int index) {
if (index < 0 || index >= fLength) {
return null;
}
return fArray[index];
}
public void clearXSObjectList() {
for (int i=0; i<fLength; i++) {
fArray[i] = null;
}
fArray = null;
fLength = 0;
}
public void addXSObject(XSObject object) {
if (fLength == fArray.length) {
XSObject[] temp = new XSObject[fLength + 4];
System.arraycopy(fArray, 0, temp, 0, fLength);
fArray = temp;
}
fArray[fLength++] = object;
}
public void addXSObject(int index, XSObject object) {
fArray[index] = object;
}
public boolean contains(Object value) {
return (value == null) ? containsNull() : containsObject(value);
}
public XSObject get(int index) {
if (index >= 0 && index < fLength) {
return fArray[index];
}
throw new IndexOutOfBoundsException("Index: " + index);
}
public int size() {
return getLength();
}
public Iterator<XSObject> iterator() {
return listIterator0(0);
}
public ListIterator<XSObject> listIterator() {
return listIterator0(0);
}
public ListIterator<XSObject> listIterator(int index) {
if (index >= 0 && index < fLength) {
return listIterator0(index);
}
throw new IndexOutOfBoundsException("Index: " + index);
}
private ListIterator<XSObject> listIterator0(int index) {
return fLength == 0 ? EMPTY_ITERATOR : new XSObjectListIterator(index);
}
private boolean containsObject(Object value) {
for (int i = fLength - 1; i >= 0; --i) {
if (value.equals(fArray[i])) {
return true;
}
}
return false;
}
private boolean containsNull() {
for (int i = fLength - 1; i >= 0; --i) {
if (fArray[i] == null) {
return true;
}
}
return false;
}
public Object[] toArray() {
Object[] a = new Object[fLength];
toArray0(a);
return a;
}
public Object[] toArray(Object[] a) {
if (a.length < fLength) {
Class<?> arrayClass = a.getClass();
Class<?> componentType = arrayClass.getComponentType();
a = (Object[]) Array.newInstance(componentType, fLength);
}
toArray0(a);
if (a.length > fLength) {
a[fLength] = null;
}
return a;
}
private void toArray0(Object[] a) {
if (fLength > 0) {
System.arraycopy(fArray, 0, a, 0, fLength);
}
}
private final class XSObjectListIterator implements ListIterator<XSObject> {
private int index;
public XSObjectListIterator(int index) {
this.index = index;
}
public boolean hasNext() {
return (index < fLength);
}
public XSObject next() {
if (index < fLength) {
return fArray[index++];
}
throw new NoSuchElementException();
}
public boolean hasPrevious() {
return (index > 0);
}
public XSObject previous() {
if (index > 0) {
return fArray[--index];
}
throw new NoSuchElementException();
}
public int nextIndex() {
return index;
}
public int previousIndex() {
return index - 1;
}
public void remove() {
throw new UnsupportedOperationException();
}
public void set(XSObject o) {
throw new UnsupportedOperationException();
}
public void add(XSObject o) {
throw new UnsupportedOperationException();
}
}
}