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A collection of tests that can certify language implementation to be compliant
with most recent requirements of the Truffle infrastructure and tooling.
/*
* Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.oracle.truffle.tck;
import java.nio.ByteBuffer;
import java.util.List;
final class Schema {
enum Type {
DOUBLE(Double.SIZE / Byte.SIZE),
INT(Integer.SIZE / Byte.SIZE);
private final int size;
Type(int size) {
this.size = size;
}
}
private final int size;
private final boolean rowBased;
private final List names;
private final List types;
Schema(int size, boolean rowBased, List names, List types) {
this.size = size;
this.rowBased = rowBased;
this.names = names;
this.types = types;
}
public int length() {
return size;
}
public Object get(byte[] buffer, int index, String name) {
assert names.contains(name);
int offset = rowBased ? getRowOffset(name, index) : getColumnOffset(name, index);
if (types.get(names.indexOf(name)) == Type.DOUBLE) {
byte[] b = new byte[Type.DOUBLE.size];
for (int i = 0; i < Type.DOUBLE.size; i++) {
b[i] = buffer[offset + i];
}
return ByteBuffer.wrap(b).getDouble();
} else if (types.get(names.indexOf(name)) == Type.INT) {
byte[] b = new byte[Type.INT.size];
for (int i = 0; i < Type.INT.size; i++) {
b[i] = buffer[offset + i];
}
return ByteBuffer.wrap(b).getInt();
}
throw new IllegalStateException();
}
List getNames() {
return names;
}
private int getRowSize() {
assert rowBased;
int rowSize = 0;
for (Type t : types) {
rowSize += t.size;
}
return rowSize;
}
private int getRowOffset(String name, int index) {
assert rowBased;
if (names.contains(name)) {
int offset = 0;
for (int i = 0; i < names.size(); i++) {
if (names.get(i).equals(name)) {
return index * getRowSize() + offset;
} else {
offset += types.get(i).size;
}
}
} else {
throw new IllegalArgumentException();
}
throw new IllegalStateException();
}
private int getColumnOffset(String name, int index) {
assert !rowBased;
if (names.contains(name)) {
int offset = 0;
for (int i = 0; i < names.size(); i++) {
if (names.get(i).equals(name)) {
return offset + index * types.get(i).size;
} else {
offset += types.get(i).size * size;
}
}
} else {
throw new IllegalArgumentException();
}
throw new IllegalStateException();
}
}
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