/**
* Cloning constructor
*
* @param clone the performance parameter to copy
*/
public PerformanceParameters(PerformanceParameters clone) {
this.setVMParameters(clone.vmParameters.toString());
this.setCachePath(clone.getCachePath());
this.setNbThreads(clone.getNbThreads());
this.setDefaultTileSize(clone.getDefaultTileSize());
this.setCacheSize(clone.getCacheSize());
}
/**
* Save the actual configuration
*
* @param confToSave The configuration to save
*/
static synchronized void saveConfiguration(PerformanceParameters confToSave)
throws IOException, BackingStoreException {
if (!loadConfiguration().getVMParameters().equals(confToSave.getVMParameters())) {
confToSave.vmParameters.save();
}
Config configuration = EngineConfig.instance().load();
Preferences preferences = configuration.preferences();
Path cachePath = confToSave.getCachePath();
if (!Files.exists(cachePath)) {
Files.createDirectories(cachePath);
}
if (Files.exists(cachePath)) {
preferences.put(
SystemUtils.SNAP_CACHE_DIR_PROPERTY_NAME, cachePath.toAbsolutePath().toString());
} else {
SystemUtils.LOG.severe(
"Directory for cache path does not exist and could not be created: "
+ cachePath.toAbsolutePath().toString());
}
preferences.putInt(PROPERTY_JAI_PARALLELISM, confToSave.getNbThreads());
preferences.putInt(PROPERTY_DEFAULT_TILE_SIZE, confToSave.getDefaultTileSize());
preferences.putInt(PROPERTY_JAI_CACHE_SIZE, confToSave.getCacheSize());
JAI.getDefaultInstance().getTileCache().setMemoryCapacity(confToSave.getCacheSize());
preferences.flush();
}
/**
* Reads the parameters files and system settings to retreive the actual performance parameters.
* It updates the "actualParameters" according to the configuration loaded.
*
* @return the actual performance parameters, loaded by this method
*/
static synchronized PerformanceParameters loadConfiguration() {
Config configuration = Config.instance().load();
Preferences preferences = configuration.preferences();
PerformanceParameters actualParameters = new PerformanceParameters();
VMParameters netBeansVmParameters = VMParameters.load();
actualParameters.setVMParameters(netBeansVmParameters.toString());
actualParameters.setCachePath(SystemUtils.getCacheDir().toPath());
final int defaultNbThreads = JavaSystemInfos.getInstance().getNbCPUs();
actualParameters.setNbThreads(preferences.getInt(PROPERTY_JAI_PARALLELISM, defaultNbThreads));
actualParameters.setDefaultTileSize(preferences.getInt(PROPERTY_DEFAULT_TILE_SIZE, 0));
actualParameters.setCacheSize(preferences.getInt(PROPERTY_JAI_CACHE_SIZE, 0));
return actualParameters;
}