void init(TdsContext tdsContext) {
// new for 4.2 - feature collection caching
String fcCache =
ThreddsConfig.get(
"FeatureCollection.cacheDirectory",
tdsContext.getContentDirectory().getPath() + "/collectionCache/");
try {
thredds.inventory.bdb.MetadataManager.setCacheDirectory(fcCache);
startupLog.info("CdmInit: FeatureCollection.cacheDirectory= " + fcCache);
} catch (Exception e) {
startupLog.error("CdmInit: Failed to open FeatureCollection.cacheDirectory= " + fcCache, e);
}
// new for 4.1 - ehcache object caching
String ehConfig =
ThreddsConfig.get("ehcache.configFile", tdsContext.getWebinfPath() + "/ehcache.xml");
String ehDirectory =
ThreddsConfig.get(
"ehcache.directory", tdsContext.getContentDirectory().getPath() + "/ehcache/");
try {
cacheManager =
thredds.filesystem.ControllerCaching.makeStandardController(ehConfig, ehDirectory);
thredds.inventory.DatasetCollectionManager.setController(cacheManager);
startupLog.info("CdmInit: ehcache.config= " + ehConfig + " directory= " + ehDirectory);
} catch (IOException ioe) {
startupLog.error("CdmInit: Cant read ehcache config file " + ehConfig, ioe);
}
boolean useBytesForDataSize =
ThreddsConfig.getBoolean("catalogWriting.useBytesForDataSize", false);
InvCatalogFactory10.useBytesForDataSize(useBytesForDataSize);
////////////////////////////////////
// AggregationFmrc.setDefinitionDirectory(new File(tdsContext.getRootDirectory(),
// fmrcDefinitionDirectory));
FmrcInventoryServlet.setDefinitionDirectory(
new File(tdsContext.getRootDirectory(), fmrcDefinitionDirectory));
// NetcdfFileCache : default is allow 200 - 400 open files, cleanup every 10 minutes
int min = ThreddsConfig.getInt("NetcdfFileCache.minFiles", 200);
int max = ThreddsConfig.getInt("NetcdfFileCache.maxFiles", 400);
int secs = ThreddsConfig.getSeconds("NetcdfFileCache.scour", 10 * 60);
if (max > 0) {
NetcdfDataset.initNetcdfFileCache(min, max, secs);
}
// HTTP file access : // allow 20 - 40 open datasets, cleanup every 10 minutes
min = ThreddsConfig.getInt("HTTPFileCache.minFiles", 25);
max = ThreddsConfig.getInt("HTTPFileCache.maxFiles", 40);
secs = ThreddsConfig.getSeconds("HTTPFileCache.scour", 10 * 60);
if (max > 0) {
ServletUtil.setFileCache(new FileCacheRaf(min, max, secs));
}
// for backwards compatibility - should be replaced by direct specifying of the IndexExtendMode
// turn off Grib extend indexing; indexes are automatically done every 10 minutes externally
boolean extendIndex = ThreddsConfig.getBoolean("GribIndexing.setExtendIndex", false);
GridServiceProvider.IndexExtendMode mode =
extendIndex
? GridServiceProvider.IndexExtendMode.extendwrite
: GridServiceProvider.IndexExtendMode.readonly;
ucar.nc2.iosp.grid.GridServiceProvider.setIndexFileModeOnOpen(mode);
ucar.nc2.iosp.grid.GridServiceProvider.setIndexFileModeOnSync(mode);
boolean alwaysUseCache = ThreddsConfig.getBoolean("GribIndexing.alwaysUseCache", false);
ucar.nc2.iosp.grid.GridServiceProvider.setIndexAlwaysInCache(alwaysUseCache);
// optimization: netcdf-3 files can only grow, not have metadata changes
ucar.nc2.NetcdfFile.setProperty("syncExtendOnly", "true");
// persist joinNew aggregations. default every 24 hours, delete stuff older than 90 days
String dir =
ThreddsConfig.get(
"AggregationCache.dir",
new File(tdsContext.getContentDirectory().getPath(), "cacheAged").getPath());
int scourSecs = ThreddsConfig.getSeconds("AggregationCache.scour", 24 * 60 * 60);
int maxAgeSecs = ThreddsConfig.getSeconds("AggregationCache.maxAge", 90 * 24 * 60 * 60);
aggCache = new DiskCache2(dir, false, maxAgeSecs / 60, scourSecs / 60);
Aggregation.setPersistenceCache(aggCache);
// how to choose the typical dataset ?
String typicalDataset = ThreddsConfig.get("Aggregation.typicalDataset", "penultimate");
Aggregation.setTypicalDatasetMode(typicalDataset);
// Nj22 disk cache
dir =
ThreddsConfig.get(
"DiskCache.dir", new File(tdsContext.getContentDirectory(), "cache").getPath());
boolean alwaysUse = ThreddsConfig.getBoolean("DiskCache.alwaysUse", false);
scourSecs = ThreddsConfig.getSeconds("DiskCache.scour", 60 * 60);
long maxSize = ThreddsConfig.getBytes("DiskCache.maxSize", (long) 1000 * 1000 * 1000);
DiskCache.setRootDirectory(dir);
DiskCache.setCachePolicy(alwaysUse);
Calendar c = Calendar.getInstance(); // contains current startup time
c.add(Calendar.SECOND, scourSecs / 2); // starting in half the scour time
timer = new Timer();
timer.scheduleAtFixedRate(new CacheScourTask(maxSize), c.getTime(), (long) 1000 * scourSecs);
startupLog.info("CdmInit complete");
}
