Examples with IncrementingLoader com.google.common.cache.TestingCacheLoaders.IncrementingLoader used on opensource projects

Example 1 with IncrementingLoader

use of com.google.common.cache.TestingCacheLoaders.IncrementingLoader in project caffeine by ben-manes.

the class CacheRefreshTest method testAutoRefresh.

public void testAutoRefresh() {
    FakeTicker ticker = new FakeTicker();
    IncrementingLoader loader = incrementingLoader();
    LoadingCache<Integer, Integer> cache = CaffeinatedGuava.build(Caffeine.newBuilder().refreshAfterWrite(3, MILLISECONDS).expireAfterWrite(6, MILLISECONDS).executor(MoreExecutors.directExecutor()).ticker(ticker::read), loader);
    int expectedLoads = 0;
    int expectedReloads = 0;
    for (int i = 0; i < 3; i++) {
        assertEquals(Integer.valueOf(i), cache.getUnchecked(i));
        expectedLoads++;
        assertEquals(expectedLoads, loader.getLoadCount());
        assertEquals(expectedReloads, loader.getReloadCount());
        ticker.advance(1, MILLISECONDS);
    }
    assertEquals(Integer.valueOf(0), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(2), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // refresh 0
    ticker.advance(1, MILLISECONDS);
    // Allow refresh to return old value while refreshing
    cache.getUnchecked(0);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    expectedReloads++;
    assertEquals(Integer.valueOf(1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(2), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // write to 1 to delay its refresh
    cache.asMap().put(1, -1);
    ticker.advance(1, MILLISECONDS);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(-1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(2), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // refresh 2
    ticker.advance(1, MILLISECONDS);
    // Allow refresh to return old value while refreshing
    cache.getUnchecked(2);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(-1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(3), cache.getUnchecked(2));
    expectedReloads++;
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    ticker.advance(1, MILLISECONDS);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(-1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(3), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // refresh 0 and 1
    ticker.advance(1, MILLISECONDS);
    // Allow refresh to return old value while refreshing
    cache.getUnchecked(0);
    // Allow refresh to return old value while refreshing
    cache.getUnchecked(1);
    assertEquals(Integer.valueOf(2), cache.getUnchecked(0));
    expectedReloads++;
    assertEquals(Integer.valueOf(0), cache.getUnchecked(1));
    expectedReloads++;
    assertEquals(Integer.valueOf(3), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
}

Example 2 with IncrementingLoader

use of com.google.common.cache.TestingCacheLoaders.IncrementingLoader in project guava by google.

the class CacheRefreshTest method testAutoRefresh.

public void testAutoRefresh() {
    FakeTicker ticker = new FakeTicker();
    IncrementingLoader loader = incrementingLoader();
    LoadingCache<Integer, Integer> cache = CacheBuilder.newBuilder().refreshAfterWrite(3, MILLISECONDS).expireAfterWrite(6, MILLISECONDS).lenientParsing().ticker(ticker).build(loader);
    int expectedLoads = 0;
    int expectedReloads = 0;
    for (int i = 0; i < 3; i++) {
        assertEquals(Integer.valueOf(i), cache.getUnchecked(i));
        expectedLoads++;
        assertEquals(expectedLoads, loader.getLoadCount());
        assertEquals(expectedReloads, loader.getReloadCount());
        ticker.advance(1, MILLISECONDS);
    }
    assertEquals(Integer.valueOf(0), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(2), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // refresh 0
    ticker.advance(1, MILLISECONDS);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    expectedReloads++;
    assertEquals(Integer.valueOf(1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(2), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // write to 1 to delay its refresh
    cache.asMap().put(1, -1);
    ticker.advance(1, MILLISECONDS);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(-1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(2), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // refresh 2
    ticker.advance(1, MILLISECONDS);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(-1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(3), cache.getUnchecked(2));
    expectedReloads++;
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    ticker.advance(1, MILLISECONDS);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(-1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(3), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // refresh 0 and 1
    ticker.advance(1, MILLISECONDS);
    assertEquals(Integer.valueOf(2), cache.getUnchecked(0));
    expectedReloads++;
    assertEquals(Integer.valueOf(0), cache.getUnchecked(1));
    expectedReloads++;
    assertEquals(Integer.valueOf(3), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
}

Example 3 with IncrementingLoader

use of com.google.common.cache.TestingCacheLoaders.IncrementingLoader in project guava by hceylan.

the class CacheRefreshTest method testAutoRefresh.

public void testAutoRefresh() {
    FakeTicker ticker = new FakeTicker();
    IncrementingLoader loader = incrementingLoader();
    LoadingCache<Integer, Integer> cache = CacheBuilder.newBuilder().refreshAfterWrite(3, MILLISECONDS).expireAfterWrite(6, MILLISECONDS).lenientParsing().ticker(ticker).build(loader);
    int expectedLoads = 0;
    int expectedReloads = 0;
    for (int i = 0; i < 3; i++) {
        assertEquals(Integer.valueOf(i), cache.getUnchecked(i));
        expectedLoads++;
        assertEquals(expectedLoads, loader.getLoadCount());
        assertEquals(expectedReloads, loader.getReloadCount());
        ticker.advance(1, MILLISECONDS);
    }
    assertEquals(Integer.valueOf(0), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(2), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // refresh 0
    ticker.advance(1, MILLISECONDS);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    expectedReloads++;
    assertEquals(Integer.valueOf(1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(2), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // write to 1 to delay its refresh
    cache.asMap().put(1, -1);
    ticker.advance(1, MILLISECONDS);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(-1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(2), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // refresh 2
    ticker.advance(1, MILLISECONDS);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(-1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(3), cache.getUnchecked(2));
    expectedReloads++;
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    ticker.advance(1, MILLISECONDS);
    assertEquals(Integer.valueOf(1), cache.getUnchecked(0));
    assertEquals(Integer.valueOf(-1), cache.getUnchecked(1));
    assertEquals(Integer.valueOf(3), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
    // refresh 0 and 1
    ticker.advance(1, MILLISECONDS);
    assertEquals(Integer.valueOf(2), cache.getUnchecked(0));
    expectedReloads++;
    assertEquals(Integer.valueOf(0), cache.getUnchecked(1));
    expectedReloads++;
    assertEquals(Integer.valueOf(3), cache.getUnchecked(2));
    assertEquals(expectedLoads, loader.getLoadCount());
    assertEquals(expectedReloads, loader.getReloadCount());
}