/// <summary>
/// Create page cache </summary>
/// <param name="fileSystem"> file system that page cache will be based on </param>
/// <param name="pageCacheTracer"> global page cache tracer </param>
/// <param name="pageCursorTracerSupplier"> supplier of thread local (transaction local) page cursor tracer that will provide
/// thread local page cache statistics </param>
/// <param name="config"> page cache configuration </param>
/// <param name="versionContextSupplier"> version context supplier </param>
/// <param name="jobScheduler"> page cache job scheduler </param>
/// <returns> created page cache instance </returns>
public static PageCache CreatePageCache(FileSystemAbstraction fileSystem, PageCacheTracer pageCacheTracer, PageCursorTracerSupplier pageCursorTracerSupplier, Config config, VersionContextSupplier versionContextSupplier, JobScheduler jobScheduler)
{
config.AugmentDefaults(GraphDatabaseSettings.pagecache_memory, "8M");
ZoneId logTimeZone = config.Get(GraphDatabaseSettings.db_timezone).ZoneId;
FormattedLogProvider logProvider = FormattedLogProvider.withZoneId(logTimeZone).toOutputStream(System.err);
ConfiguringPageCacheFactory pageCacheFactory = new ConfiguringPageCacheFactory(fileSystem, config, pageCacheTracer, pageCursorTracerSupplier, logProvider.GetLog(typeof(PageCache)), versionContextSupplier, jobScheduler);
return(pageCacheFactory.OrCreatePageCache);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldWarnWhenCreatedWithConfiguredPageCache()
public virtual void ShouldWarnWhenCreatedWithConfiguredPageCache()
{
// Given
Config config = Config.defaults(stringMap(GraphDatabaseSettings.mapped_memory_page_size.name(), "4096", pagecache_swapper.name(), TEST_PAGESWAPPER_NAME));
AssertableLogProvider logProvider = new AssertableLogProvider();
Log log = logProvider.GetLog(typeof(PageCache));
// When
ConfiguringPageCacheFactory pageCacheFactory = new ConfiguringPageCacheFactory(FsRule.get(), config, PageCacheTracer.NULL, Org.Neo4j.Io.pagecache.tracing.cursor.PageCursorTracerSupplier_Fields.Null, log, EmptyVersionContextSupplier.EMPTY, _jobScheduler);
// Then
using (PageCache ignore = pageCacheFactory.OrCreatePageCache)
{
logProvider.RawMessageMatcher().assertContains("The setting unsupported.dbms.memory.pagecache.pagesize does not have any effect. It is " + "deprecated and will be removed in a future version.");
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldFitAsManyPagesAsItCan()
public virtual void ShouldFitAsManyPagesAsItCan()
{
// Given
long pageCount = 60;
long memory = MuninnPageCache.memoryRequiredForPages(pageCount);
Config config = Config.defaults(pagecache_memory, Convert.ToString(memory));
// When
ConfiguringPageCacheFactory factory = new ConfiguringPageCacheFactory(FsRule.get(), config, PageCacheTracer.NULL, Org.Neo4j.Io.pagecache.tracing.cursor.PageCursorTracerSupplier_Fields.Null, NullLog.Instance, EmptyVersionContextSupplier.EMPTY, _jobScheduler);
// Then
using (PageCache cache = factory.OrCreatePageCache)
{
assertThat(cache.PageSize(), equalTo(Org.Neo4j.Io.pagecache.PageCache_Fields.PAGE_SIZE));
assertThat(cache.MaxCachedPages(), equalTo(pageCount));
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void mustUseAndLogConfiguredPageSwapper()
public virtual void MustUseAndLogConfiguredPageSwapper()
{
// Given
Config config = Config.defaults(stringMap(pagecache_memory.name(), "8m", pagecache_swapper.name(), TEST_PAGESWAPPER_NAME));
AssertableLogProvider logProvider = new AssertableLogProvider();
Log log = logProvider.GetLog(typeof(PageCache));
// When
ConfiguringPageCacheFactory cacheFactory = new ConfiguringPageCacheFactory(FsRule.get(), config, PageCacheTracer.NULL, Org.Neo4j.Io.pagecache.tracing.cursor.PageCursorTracerSupplier_Fields.Null, log, EmptyVersionContextSupplier.EMPTY, _jobScheduler);
cacheFactory.OrCreatePageCache.close();
// Then
assertThat(PageSwapperFactoryForTesting.CountCreatedPageSwapperFactories(), @is(1));
assertThat(PageSwapperFactoryForTesting.CountConfiguredPageSwapperFactories(), @is(1));
logProvider.RawMessageMatcher().assertContains(TEST_PAGESWAPPER_NAME);
}
