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/*
* Copyright (c) 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.
*
* 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.
*/
/*
* @test
* @bug 8068399 8069545
* @summary structural most specific and stuckness
*/
import java.util.function.Function;
import java.util.stream.IntStream;
import java.util.stream.Stream;
public class T8068399 {
public static class Spectrum {
public double[] getEnergy() {
return new double[0];
}
}
protected Spectrum spectrum;
public static class Ref<T> {
T value;
public Ref() {
}
public Ref(T value) {
this.value = value;
}
public boolean isNull() {
return value == null;
}
public T get() {
return value;
}
public void set(T value) {
this.value = value;
}
}
public static <T>T maxKey(Stream<T> stream, Function<T, Double> function) {
Ref<Double> max = new Ref<>();
Ref<T> index = new Ref<>();
stream.forEach(v -> {
Double value = function.apply(v);
if (max.isNull() || value > max.get()) {
max.set(value);
index.set(v);
}
});
return index.get();
}
public static int interpolate(int x, int x0, int x1, int y0, int y1) {
return y0 + (x - x0) * (y1 - y0) / (x1 - x0);
}
public static double interpolate(double x, double x0, double x1, double y0, double y1) {
return y0 + (x - x0) * (y1 - y0) / (x1 - x0);
}
protected int getXByFrequency(double frequency) {
return (int) Math.round(interpolate(frequency,
getMinSpectrumCoord(),
getMaxSpectrumCoord(),
0, getWidth()));
}
private int getWidth() {
return 0;
}
private double getMaxSpectrumCoord() {
return 0;
}
private double getMinSpectrumCoord() {
return 0;
}
void foo() {
int maxBpmIndex = 0;
int xcur = getXByFrequency(maxKey(IntStream.range(0, maxBpmIndex).boxed(),
i -> Math.abs(spectrum.getEnergy()[i])));
}
public static void main(String [] args) {
}
}
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