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Jetty example source code file (InjectionCollection.java)
The Jetty InjectionCollection.java source code//======================================================================== //$Id: InjectionCollection.java 1540 2007-01-19 12:24:10Z janb $ //Copyright 2006 Mort Bay Consulting Pty. Ltd. //------------------------------------------------------------------------ //Licensed under the Apache License, Version 2.0 (the "License"); //you may not use this file except in compliance with the License. //You may obtain a copy of the License at //http://www.apache.org/licenses/LICENSE-2.0 //Unless required by applicable law or agreed to in writing, software //distributed under the License is distributed on an "AS IS" BASIS, //WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. //See the License for the specific language governing permissions and //limitations under the License. //======================================================================== package org.mortbay.jetty.plus.annotation; import java.lang.reflect.Field; import java.lang.reflect.Member; import java.lang.reflect.Method; import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import org.mortbay.log.Log; /** * InjectionCollection * * */ public class InjectionCollection { private HashMap fieldInjectionsMap = new HashMap();//map of classname to field injections private HashMap methodInjectionsMap = new HashMap();//map of classname to method injections public void add (Injection injection) { if ((injection==null) || (injection.getTarget()==null) || (injection.getTargetClass()==null)) return; if (Log.isDebugEnabled()) Log.debug("Adding injection for class="+injection.getTargetClass()+ " on a "+injection.getTarget()); Map injectionsMap = null; if (injection.getTarget() instanceof Field) injectionsMap = fieldInjectionsMap; if (injection.getTarget() instanceof Method) injectionsMap = methodInjectionsMap; List injections = (List)injectionsMap.get(injection.getTargetClass()); if (injections==null) { injections = new ArrayList(); injectionsMap.put(injection.getTargetClass(), injections); } injections.add(injection); } public List getFieldInjections (Class clazz) { if (clazz==null) return null; List list = (List)fieldInjectionsMap.get(clazz); return (list==null?Collections.EMPTY_LIST:list); } public List getMethodInjections (Class clazz) { if (clazz==null) return null; List list = (List)methodInjectionsMap.get(clazz); return (list==null?Collections.EMPTY_LIST:list); } public List getInjections (Class clazz) { if (clazz==null) return null; List results = new ArrayList(); results.addAll(getFieldInjections(clazz)); results.addAll(getMethodInjections(clazz)); return results; } public Injection getInjection (Class clazz, Member member) { if (clazz==null) return null; if (member==null) return null; Map map = null; if (member instanceof Field) map = fieldInjectionsMap; else if (member instanceof Method) map = methodInjectionsMap; if (map==null) return null; List injections = (List)map.get(clazz); Injection injection = null; for (int i=0;injections!=null && i<injections.size() && injection==null;i++) { Injection candidate = (Injection)injections.get(i); if (candidate.getTarget().equals(member)) injection = candidate; } return injection; } public void inject (Object injectable) throws Exception { if (injectable==null) return; //Do field injections List list = getFieldInjections(injectable.getClass()); for (int i=0; list!=null && i<list.size();i++) ((Injection)list.get(i)).inject(injectable); //Do method injections list = getMethodInjections(injectable.getClass()); for (int i=0; list!=null && i<list.size();i++) ((Injection)list.get(i)).inject(injectable); } } Other Jetty examples (source code examples)Here is a short list of links related to this Jetty InjectionCollection.java source code file: |
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