/**
* Copyright 2009 Google Inc.
*
* 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 org.waveprotocol.wave.model.operation.testing;
import java.util.Random;
import org.waveprotocol.wave.model.operation.testing.RationalDomain.Affine;
public class AffineGenerator implements RandomOpGenerator<RationalDomain.Data, Affine> {
@Override
public Affine randomOperation(RationalDomain.Data state, Random random) {
int neg1 = random.nextBoolean() ? -1 : 1;
int neg2 = random.nextBoolean() ? -1 : 1;
long mulNum, mulDenom;
//
// final BigInteger TOO_BIG = BigInteger.valueOf(1000);
//
// if (state.value.numerator) > TOO_BIG) {
// mulDenom = state.value.numerator;
// } else {
// mulDenom = random.nextInt(9) + 1;
// }
// if (state.value.denominator > TOO_BIG) {
// mulNum = state.value.denominator;
// } else {
// mulNum = neg1 * (random.nextInt(9) + 1);
// }
return new Affine(
state.value,
new Rational(neg1 * (random.nextInt(9) + 1), random.nextInt(9) + 1),
new Rational(neg2 * (random.nextInt(10)), random.nextInt(9) + 1)
);
}
}