/***************************************************************************
* Copyright (C) 2012 by H-Store Project *
* Brown University *
* Massachusetts Institute of Technology *
* Yale University *
* *
* http://hstore.cs.brown.edu/ *
* *
* Permission is hereby granted, free of charge, to any person obtaining *
* a copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, sublicense, and/or sell copies of the Software, and to *
* permit persons to whom the Software is furnished to do so, subject to *
* the following conditions: *
* *
* The above copyright notice and this permission notice shall be *
* included in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, *
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR *
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, *
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR *
* OTHER DEALINGS IN THE SOFTWARE. *
***************************************************************************/
package edu.brown.pools;
import org.apache.log4j.Logger;
import edu.brown.logging.LoggerUtil;
import edu.brown.logging.LoggerUtil.LoggerBoolean;
public class TypedObjectPool<T extends Poolable> extends FastObjectPool<T> {
private static final Logger LOG = Logger.getLogger(TypedObjectPool.class);
private static final LoggerBoolean debug = new LoggerBoolean();
private static final LoggerBoolean trace = new LoggerBoolean();
static {
LoggerUtil.attachObserver(LOG, debug, trace);
}
public TypedObjectPool(TypedPoolableObjectFactory<T> factory) {
super(factory);
}
public TypedObjectPool(TypedPoolableObjectFactory<T> factory, int idle) {
super(factory, idle);
}
@Override
public T borrowObject() throws Exception {
T t = (T) super.borrowObject();
assert (t.isInitialized() == false) :
String.format("Trying to reuse %s<%s> before it is finished!",
this.getClass().getSimpleName(), t);
return t;
}
/**
* Return the given object into this pool.
* <B>Note:</B> You do not need to call Poolable.finish(). This will be automatically
* done in TypedPoolableObjectFactory.passivateObject()
*/
public void returnObject(T t) {
try {
super.returnObject(t);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
@Override
public String toString() {
@SuppressWarnings("unchecked")
TypedPoolableObjectFactory<T> factory = (TypedPoolableObjectFactory<T>)this.getFactory();
String ret = null;
if (factory.isCountingEnabled()) {
ret = String.format("%s [active:%d / idle:%d / created:%d / passivated:%d / destroyed:%d]",
this.getClass().getSimpleName(),
this.getNumActive(),
this.getNumIdle(),
factory.getCreatedCount(),
factory.getPassivatedCount(),
factory.getDestroyedCount());
} else {
ret = String.format("%s [active:%d / idle:%d]",
this.getClass().getSimpleName(),
this.getNumActive(),
this.getNumIdle());
}
return (ret);
}
/**
* @param <X>
* @param clazz
* @param idle
* @param enable_tracking
* @param args
* @return
*/
public static <X extends Poolable> TypedObjectPool<X> factory(Class<X> clazz,
int idle,
boolean enable_tracking,
Object... args) {
TypedPoolableObjectFactory<X> factory = TypedPoolableObjectFactory.makeFactory(clazz,
enable_tracking,
args);
return new TypedObjectPool<X>(factory, idle);
}
}