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A Shaded CQL ActivityType driver for http://nosqlbench.io/
/*
* Copyright (c) 2014, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* The Universal Permissive License (UPL), Version 1.0
*
* Subject to the condition set forth below, permission is hereby granted to any
* person obtaining a copy of this software, associated documentation and/or
* data (collectively the "Software"), free of charge and under any and all
* copyright rights in the Software, and any and all patent rights owned or
* freely licensable by each licensor hereunder covering either (i) the
* unmodified Software as contributed to or provided by such licensor, or (ii)
* the Larger Works (as defined below), to deal in both
*
* (a) the Software, and
*
* (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
* one is included with the Software each a "Larger Work" to which the Software
* is contributed by such licensors),
*
* without restriction, including without limitation the rights to copy, create
* derivative works of, display, perform, and distribute the Software and make,
* use, sell, offer for sale, import, export, have made, and have sold the
* Software and the Larger Work(s), and to sublicense the foregoing rights on
* either these or other terms.
*
* This license is subject to the following condition:
*
* The above copyright notice and either this complete permission notice or at a
* minimum a reference to the UPL must be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.oracle.truffle.api.impl;
import java.lang.reflect.Array;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.NoSuchElementException;
import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
public final class ReadOnlyArrayList implements List {
private final T[] arr;
private final int first;
private final int last;
private ReadOnlyArrayList(T[] arr, int first, int last) {
this.arr = arr;
this.first = first;
this.last = last;
if (first > last) {
throw new IllegalArgumentException();
}
}
public static List asList(T[] arr, int first, int last) {
return new ReadOnlyArrayList<>(arr, first, last);
}
@Override
public int size() {
return last - first;
}
@Override
public boolean isEmpty() {
return first == last;
}
@Override
public boolean contains(Object o) {
for (int i = first; i < last; i++) {
if (o == arr[i] || (o != null && o.equals(arr[i]))) {
return true;
}
}
return false;
}
@Override
public Iterator iterator() {
return new LI(first);
}
@Override
public Object[] toArray() {
return toArray(new Object[size()]);
}
@Override
@SuppressWarnings("unchecked")
public A[] toArray(A[] b) {
A[] a;
if (b.length < size()) {
a = (A[]) Array.newInstance(b.getClass().getComponentType(), size());
} else {
a = b;
}
for (int i = 0, at = first; at < last; i++, at++) {
a[i] = (A) arr[at];
}
return a;
}
@Override
public boolean add(Object e) {
throw new UnsupportedOperationException();
}
@Override
public boolean remove(Object o) {
throw new UnsupportedOperationException();
}
@Override
public boolean containsAll(Collection c) {
for (Object obj : c) {
if (!contains(obj)) {
return false;
}
}
return true;
}
@Override
public boolean addAll(Collection c) {
throw new UnsupportedOperationException();
}
@Override
public boolean addAll(int index, Collection c) {
throw new UnsupportedOperationException();
}
@Override
public boolean removeAll(Collection c) {
throw new UnsupportedOperationException();
}
@Override
public boolean retainAll(Collection c) {
throw new UnsupportedOperationException();
}
@Override
public void clear() {
throw new UnsupportedOperationException();
}
@Override
public T get(int index) {
int at = first + index;
if (at < first || at >= last) {
throw new ArrayIndexOutOfBoundsException();
}
T ret = arr[at];
return ret;
}
@Override
public T set(int index, Object element) {
throw new UnsupportedOperationException();
}
@Override
public void add(int index, Object element) {
throw new UnsupportedOperationException();
}
@Override
public T remove(int index) {
throw new UnsupportedOperationException();
}
@Override
public int indexOf(Object o) {
for (int i = first; i < last; i++) {
if (arr[i] == null) {
if (o == null) {
return i - first;
}
} else {
if (arr[i].equals(o)) {
return i - first;
}
}
}
return -1;
}
@Override
public int lastIndexOf(Object o) {
for (int i = last - 1; i >= first; i--) {
if (arr[i] == null) {
if (o == null) {
return i - first;
}
} else {
if (arr[i].equals(o)) {
return i - first;
}
}
}
return -1;
}
@Override
public ListIterator listIterator() {
return new LI(first);
}
@Override
public ListIterator listIterator(int index) {
return new LI(first + index);
}
@Override
public List subList(int fromIndex, int toIndex) {
return new ReadOnlyArrayList<>(arr, first + fromIndex, first + toIndex);
}
@TruffleBoundary
@Override
public String toString() {
Iterator it = iterator();
if (!it.hasNext()) {
return "[]";
}
StringBuilder sb = new StringBuilder();
sb.append('[');
for (;;) {
T e = it.next();
sb.append(e == this ? "(this Collection)" : e);
if (!it.hasNext()) {
return sb.append(']').toString();
}
sb.append(',').append(' ');
}
}
private final class LI implements ListIterator, Iterator {
private int index;
LI(int index) {
this.index = index;
}
@Override
public boolean hasNext() {
return index < last;
}
@Override
public T next() {
if (index >= last) {
throw new NoSuchElementException();
}
return arr[index++];
}
@Override
public boolean hasPrevious() {
return index > first;
}
@Override
public T previous() {
if (first == index) {
throw new NoSuchElementException();
}
return arr[--index];
}
@Override
public int nextIndex() {
return index - first;
}
@Override
public int previousIndex() {
return index - 1 - first;
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
@Override
public void set(Object e) {
throw new UnsupportedOperationException();
}
@Override
public void add(Object e) {
throw new UnsupportedOperationException();
}
}
}
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