1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.myfaces.el.unified;
20
21 import java.util.ArrayList;
22 import java.util.List;
23
24 import javax.el.CompositeELResolver;
25 import javax.el.ELResolver;
26
27 import org.apache.myfaces.config.RuntimeConfig;
28 import org.apache.myfaces.el.FlashELResolver;
29 import org.apache.myfaces.el.unified.resolver.FacesCompositeELResolver.Scope;
30 import org.apache.myfaces.el.unified.resolver.ManagedBeanResolver;
31 import org.apache.myfaces.el.unified.resolver.ResourceBundleResolver;
32 import org.apache.myfaces.el.unified.resolver.ResourceResolver;
33 import org.apache.myfaces.el.unified.resolver.implicitobject.ImplicitObjectResolver;
34
35 /**
36 * build the el resolver for jsp. see 1.2 spec section 5.6.1
37 *
38 * @author Mathias Broekelmann (latest modification by $Author$)
39 * @version $Revision$ $Date$
40 */
41 public class ResolverBuilderForJSP extends ResolverBuilderBase implements ELResolverBuilder
42 {
43 public ResolverBuilderForJSP(RuntimeConfig config)
44 {
45 super(config);
46 }
47
48 public void build(CompositeELResolver compositeElResolver)
49 {
50 // add the ELResolvers to a List first to be able to sort them
51 List<ELResolver> list = new ArrayList<ELResolver>();
52
53 list.add(ImplicitObjectResolver.makeResolverForJSP());
54 //Flash object is instanceof Map, so it is necessary to resolve
55 //before MapELResolver. Better to put this one before
56 list.add(new FlashELResolver());
57 list.add(new ManagedBeanResolver());
58 list.add(new ResourceBundleResolver());
59 list.add(new ResourceResolver());
60
61 addFromRuntimeConfig(list);
62
63 // give the user a chance to sort the resolvers
64 sortELResolvers(list, Scope.JSP);
65
66 // give the user a chance to filter the resolvers
67 Iterable<ELResolver> filteredELResolvers = filterELResolvers(list, Scope.JSP);
68
69 // add the resolvers from the list to the CompositeELResolver
70 for (ELResolver resolver : filteredELResolvers)
71 {
72 compositeElResolver.add(resolver);
73 }
74 }
75
76 }