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package com.sun.enterprise.naming.util;
import com.sun.enterprise.naming.spi.NamingObjectFactory;
import org.glassfish.api.naming.GlassfishNamingManager;
import org.jvnet.hk2.annotations.Service;
import javax.naming.Context;
import javax.naming.NamingException;
import java.util.concurrent.atomic.AtomicReference;
/**
* Factory for creating Objects with a given jndi name
*
* This factory creates objects by looking them up in the given {@link Context}
*/
@Service
public class JndiNamingObjectFactory
implements NamingObjectFactory {
private String name;
private String jndiName;
private AtomicReference value;
private boolean cacheResult;
/**
*
* @param name the name of the object; equivalent to the name value of a {@link javax.annotation.Resource} annotation
* @param jndiName the jndi name to lookup to get the object; equivalent to the lookup value of a {@link javax.annotation.Resource} annotation
* @param cacheResult whether the result may have been cached
*/
public JndiNamingObjectFactory(String name, String jndiName, boolean cacheResult) {
this.name = name;
this.jndiName = jndiName;
this.cacheResult = cacheResult;
this.value = new AtomicReference();
}
@Override
public boolean isCreateResultCacheable() {
return cacheResult;
}
@Override
public Object create(Context ic)
throws NamingException {
Object result = null;
try {
ic.addToEnvironment(GlassfishNamingManager.LOGICAL_NAME, name);
if (cacheResult) {
result = value.get();
if (result == null) {
Object tempResult = ic.lookup(jndiName);
if (value.compareAndSet(null, tempResult)) {
result = tempResult;
} else {
result = value.get();
}
}
} else {
result = ic.lookup(jndiName);
}
} finally {
ic.removeFromEnvironment(GlassfishNamingManager.LOGICAL_NAME);
}
return result;
}
}