public void testIntSignalCompressingConverter3() {
final IntSignal intSignal = new IntSignal();
final Random random = new Random();
final long time = System.currentTimeMillis();
for (int i = 0; i < 10000; i++) {
intSignal.occur(time + i, (int) (Math.abs(random.nextGaussian()) * 3 + 1));
}
final IntSignal2BufferConverter plain = new IntSignal2BufferConverter();
final Buffer plainBuffer = plain.convertTo(intSignal);
final IntSignal2BufferCompressingConverter converter =
new IntSignal2BufferCompressingConverter();
final Buffer compressedBuffer = converter.convertTo(intSignal);
final IntSignal2BufferCompressingConverter2 converter2 =
new IntSignal2BufferCompressingConverter2();
final Buffer compressedBuffer2 = converter2.convertTo(intSignal);
System.out.println(
"Compression ratio 1: "
+ ((double) plainBuffer.remaining()) / compressedBuffer.remaining());
System.out.println(
"Compression ratio 2: "
+ ((double) plainBuffer.remaining()) / compressedBuffer2.remaining());
}
public void testIntSignalConverter() {
final IntSignal intSignal =
new IntSignal(new long[] {1, 2, 3, 4, 5}, new int[] {2, 3, 4, 5, 6});
final IntSignal2BufferConverter converter = new IntSignal2BufferConverter();
final Buffer buffer = converter.convertTo(intSignal);
IntSignal converted = converter.convertFrom(buffer);
assertTrue(Arrays.equals(intSignal.getTimestamps(), converted.getTimestamps()));
assertTrue(Arrays.equals(intSignal.getNativeValues(), converted.getNativeValues()));
}
public void testIntSignalCompressingConverterPerformance() {
final IntSignal intSignal = new IntSignal();
final Random random = new Random();
final long time = System.currentTimeMillis();
for (int i = 0; i < 10000; i++) {
intSignal.occur(time + i, (int) (Math.abs(random.nextGaussian()) * 3 + 1));
}
final IntSignal2BufferConverter plain = new IntSignal2BufferConverter();
final IntSignal2BufferCompressingConverter converter =
new IntSignal2BufferCompressingConverter();
final IntSignal2BufferCompressingConverter2 converter2 =
new IntSignal2BufferCompressingConverter2();
final int cnt = 500;
Interval.start();
for (int i = 0; i < cnt; i++) {
final Buffer plainBuffer = plain.convertTo(intSignal);
plain.convertFrom(plainBuffer);
}
Interval.stopAndPrint();
Interval.start();
for (int i = 0; i < cnt; i++) {
final Buffer plainBuffer = converter.convertTo(intSignal);
converter.convertFrom(plainBuffer);
}
Interval.stopAndPrint();
Interval.start();
for (int i = 0; i < cnt; i++) {
final Buffer plainBuffer = converter2.convertTo(intSignal);
converter2.convertFrom(plainBuffer);
}
Interval.stopAndPrint();
}