How to use

getMaximumHeapSize

method

in

org.locationtech.geogig.storage.cache.CacheManager

long getAbsoluteMaximumSize() {
  double maxMemory = getMaximumHeapSize();
  return (long) (maxMemory * 0.9);
}

long getAbsoluteMaximumSize() {
  double maxMemory = getMaximumHeapSize();
  return (long) (maxMemory * 0.9);
}

long getCacheSizePercent(double percent) {
  checkArgument(percent >= 0d && percent <= 0.9,
      "percent must be between zero and 90% (0.9)");
  final long maxMemory = getMaximumHeapSize();
  // Use up to 10% of the heap by default
  return (long) (maxMemory * percent);
}

long getCacheSizePercent(double percent) {
  checkArgument(percent >= 0d && percent <= 0.9,
      "percent must be between zero and 90% (0.9)");
  final long maxMemory = getMaximumHeapSize();
  // Use up to 10% of the heap by default
  return (long) (maxMemory * percent);
}

@Override
public double getMaximumSizePercent() {
  final long maxMemory = getMaximumHeapSize();
  double percent = (double) getMaximumSize() / maxMemory;
  return percent;
}

@Override
public double getMaximumSizePercent() {
  final long maxMemory = getMaximumHeapSize();
  double percent = (double) getMaximumSize() / maxMemory;
  return percent;
}

public @Test void resolveDefaultMaxSizeInvalidTooBigArgumentFallsBackToDefaultPercent() {
  final long maxHeapSize = 1024;
  doReturn(maxHeapSize).when(cacheManager).getMaximumHeapSize();
  doReturn("1025").when(cacheManager).getMaximumSizeSystemProperty();
  doReturn("1.5K").when(cacheManager).getMaximumSizeEnvVariable();
  double expected = maxHeapSize * CacheManagerBean.DEFAULT_CACHE_SIZE_PERCENT;
  assertEquals(expected, cacheManager.resolveDefaultMaxSize(), 1e-9);
}

public @Test void getAbsoluteMaximumSizeMB() {
  final long maxHeapSize = 10 * 1024 * 1024;
  doReturn(maxHeapSize).when(cacheManager).getMaximumHeapSize();
  assertEquals("AbsoluteMaximumSizeMB should be 90% of max heap size", 9,
      cacheManager.getAbsoluteMaximumSizeMB(), 1e-9);
}

public @Test void getDefaultSizeMB() {
  final long maxHeapSize = 10 * 1024 * 1024;
  doReturn(maxHeapSize).when(cacheManager).getMaximumHeapSize();
  doReturn("").when(cacheManager).getMaximumSizeSystemProperty();
  doReturn("").when(cacheManager).getMaximumSizeEnvVariable();
  double expected = 10 * CacheManagerBean.DEFAULT_CACHE_SIZE_PERCENT;
  assertEquals(expected, cacheManager.getDefaultSizeMB(), 1e-9);
}

public @Test void getAbsoluteMaximumSizeMB() {
  final long maxHeapSize = 10 * 1024 * 1024;
  doReturn(maxHeapSize).when(cacheManager).getMaximumHeapSize();
  assertEquals("AbsoluteMaximumSizeMB should be 90% of max heap size", 9,
      cacheManager.getAbsoluteMaximumSizeMB(), 1e-9);
}

public @Test void resolveDefaultMaxSizeInvalidTooBigArgumentFallsBackToDefaultPercent() {
  final long maxHeapSize = 1024;
  doReturn(maxHeapSize).when(cacheManager).getMaximumHeapSize();
  doReturn("1025").when(cacheManager).getMaximumSizeSystemProperty();
  doReturn("1.5K").when(cacheManager).getMaximumSizeEnvVariable();
  double expected = maxHeapSize * CacheManagerBean.DEFAULT_CACHE_SIZE_PERCENT;
  assertEquals(expected, cacheManager.resolveDefaultMaxSize(), 1e-9);
}

public @Test void getDefaultSizeMB() {
  final long maxHeapSize = 10 * 1024 * 1024;
  doReturn(maxHeapSize).when(cacheManager).getMaximumHeapSize();
  doReturn("").when(cacheManager).getMaximumSizeSystemProperty();
  doReturn("").when(cacheManager).getMaximumSizeEnvVariable();
  double expected = 10 * CacheManagerBean.DEFAULT_CACHE_SIZE_PERCENT;
  assertEquals(expected, cacheManager.getDefaultSizeMB(), 1e-9);
}

public @Test void getCacheSizePercent() {
  final long maxHeapSize = 1024 * 1024;
  doReturn(maxHeapSize).when(cacheManager).getMaximumHeapSize();
  assertEquals(0L, cacheManager.getCacheSizePercent(0));
  assertEquals(maxHeapSize / 2, cacheManager.getCacheSizePercent(0.5));
}

public @Test void getCacheSizePercent() {
  final long maxHeapSize = 1024 * 1024;
  doReturn(maxHeapSize).when(cacheManager).getMaximumHeapSize();
  assertEquals(0L, cacheManager.getCacheSizePercent(0));
  assertEquals(maxHeapSize / 2, cacheManager.getCacheSizePercent(0.5));
}

public @Test void parseCacheSizeValidPercent() {
  final long maxHeapSize = 1000;
  doReturn(maxHeapSize).when(cacheManager).getMaximumHeapSize();
  assertEquals(0L, cacheManager.parseCacheSizeArgument("0"));
  assertEquals(100L, cacheManager.parseCacheSizeArgument("0.1"));
  assertEquals(500L, cacheManager.parseCacheSizeArgument(".5"));
  assertEquals(900L, cacheManager.parseCacheSizeArgument("0.9"));
}

public @Test void parseCacheSizeValidPercent() {
  final long maxHeapSize = 1000;
  doReturn(maxHeapSize).when(cacheManager).getMaximumHeapSize();
  assertEquals(0L, cacheManager.parseCacheSizeArgument("0"));
  assertEquals(100L, cacheManager.parseCacheSizeArgument("0.1"));
  assertEquals(500L, cacheManager.parseCacheSizeArgument(".5"));
  assertEquals(900L, cacheManager.parseCacheSizeArgument("0.9"));
}

public @Test void setMaximumSizePercent() {
  final long maxHeapSize = 10 * 1024 * 1024;
  doReturn(maxHeapSize).when(cacheManager).getMaximumHeapSize();
  cacheManager.setMaximumSizePercent(0.0);
  assertEquals(0, cacheManager.getMaximumSize(), 1e-9);
  cacheManager.setMaximumSizePercent(0.1);
  assertEquals(maxHeapSize * 0.1, cacheManager.getMaximumSize(), 1e-9);
  cacheManager.setMaximumSizePercent(0.9);
  assertEquals(maxHeapSize * 0.9, cacheManager.getMaximumSize(), 1e-9);
  ex.expect(IllegalArgumentException.class);
  cacheManager.setMaximumSizePercent(0.91);
}

public @Test void setMaximumSizePercent() {
  final long maxHeapSize = 10 * 1024 * 1024;
  doReturn(maxHeapSize).when(cacheManager).getMaximumHeapSize();
  cacheManager.setMaximumSizePercent(0.0);
  assertEquals(0, cacheManager.getMaximumSize(), 1e-9);
  cacheManager.setMaximumSizePercent(0.1);
  assertEquals(maxHeapSize * 0.1, cacheManager.getMaximumSize(), 1e-9);
  cacheManager.setMaximumSizePercent(0.9);
  assertEquals(maxHeapSize * 0.9, cacheManager.getMaximumSize(), 1e-9);
  ex.expect(IllegalArgumentException.class);
  cacheManager.setMaximumSizePercent(0.91);
}