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//
// ========================================================================
// Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.plus.annotation;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
/**
* InjectionCollection
*
*
*/
public class InjectionCollection
{
private static final Logger LOG = Log.getLogger(InjectionCollection.class);
public static final String INJECTION_COLLECTION = "org.eclipse.jetty.injectionCollection";
private HashMap<String, List<Injection>> _injectionMap = new HashMap<String, List<Injection>>();//map of classname to injections
public void add (Injection injection)
{
if ((injection==null) || injection.getTargetClass()==null)
return;
if (LOG.isDebugEnabled())
LOG.debug("Adding injection for class="+(injection.getTargetClass()+ " on a "+(injection.getTarget().getName())));
List<Injection> injections = (List<Injection>)_injectionMap.get(injection.getTargetClass().getCanonicalName());
if (injections==null)
{
injections = new ArrayList<Injection>();
_injectionMap.put(injection.getTargetClass().getCanonicalName(), injections);
}
injections.add(injection);
}
public List<Injection> getInjections (String className)
{
if (className==null)
return null;
return _injectionMap.get(className);
}
public Injection getInjection (String jndiName, Class<?> clazz, Field field)
{
if (field == null || clazz == null)
return null;
List<Injection> injections = getInjections(clazz.getCanonicalName());
if (injections == null)
return null;
Iterator<Injection> itor = injections.iterator();
Injection injection = null;
while (itor.hasNext() && injection == null)
{
Injection i = itor.next();
if (i.isField() && field.getName().equals(i.getTarget().getName()))
injection = i;
}
return injection;
}
public Injection getInjection (String jndiName, Class<?> clazz, Method method, Class<?> paramClass)
{
if (clazz == null || method == null || paramClass == null)
return null;
List<Injection> injections = getInjections(clazz.getCanonicalName());
if (injections == null)
return null;
Iterator<Injection> itor = injections.iterator();
Injection injection = null;
while (itor.hasNext() && injection == null)
{
Injection i = itor.next();
if (i.isMethod() && i.getTarget().getName().equals(method.getName()) && paramClass.equals(i.getParamClass()))
injection = i;
}
return injection;
}
public void inject (Object injectable)
{
if (injectable==null)
return;
//Get all injections pertinent to the Object by
//looking at it's class hierarchy
Class<?> clazz = injectable.getClass();
while (clazz != null)
{
List<Injection> injections = _injectionMap.get(clazz.getCanonicalName());
if (injections != null)
{
for (Injection i : injections)
i.inject(injectable);
}
clazz = clazz.getSuperclass();
}
}
}
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