static {
boolean disabled;
if (SystemPropertyUtil.get("io.netty.noResourceLeakDetection") != null) {
boolean disabled = SystemPropertyUtil.getBoolean("io.netty.noResourceLeakDetection", false);
logger.debug("-Dio.netty.noResourceLeakDetection: {}", Boolean.valueOf(disabled));
logger.warn(
"-Dio.netty.noResourceLeakDetection is deprecated. Use '-D{}={}' instead.",
"io.netty.leakDetectionLevel",
DEFAULT_LEVEL.name().toLowerCase());
} else {
disabled = false;
}
Level defaultLevel = disabled ? Level.DISABLED : DEFAULT_LEVEL;
String levelStr =
SystemPropertyUtil.get("io.netty.leakDetectionLevel", defaultLevel.name())
.trim()
.toUpperCase();
Level level = DEFAULT_LEVEL;
for (Level l : EnumSet.allOf(Level.class)) {
if ((levelStr.equals(l.name())) || (levelStr.equals(String.valueOf(l.ordinal())))) {
level = l;
}
}
level = level;
if (logger.isDebugEnabled()) {
logger.debug("-D{}: {}", "io.netty.leakDetectionLevel", level.name().toLowerCase());
}
}
public ResourceLeak open(T obj) {
Level level = level;
if (level == Level.DISABLED) {
return null;
}
if (level.ordinal() < Level.PARANOID.ordinal()) {
if (this.leakCheckCnt++ % this.samplingInterval == 0L) {
reportLeak(level);
return new DefaultResourceLeak(obj);
}
return null;
}
reportLeak(level);
return new DefaultResourceLeak(obj);
}
/**
* Checks whether passed Level is equal or higher than level set in the class
*
* @param level - Level instance
* @return true if level is higher or equal, false otherwise
*/
private boolean isLoggable(Level level) {
return this.level.ordinal() <= level.ordinal();
}
