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.orchestra.viewController;
20
21 /**
22 * Each view controller configured with the constructor will be asked to map the given viewId.
23 * The first one not returning NULL wins.
24 * <p>
25 * As an example, this can be configured to first try a mapper that converts the viewId to
26 * a beanname, then if that fails to find a match try a mapper that uses class annotations
27 * to find an appropriate bean.
28 */
29 public class CompositeViewControllerNameMapper implements ViewControllerNameMapper
30 {
31 private final ViewControllerNameMapper[] viewControllerNameMappers;
32
33 public CompositeViewControllerNameMapper(ViewControllerNameMapper[] viewControllerNameMappers)
34 {
35 this.viewControllerNameMappers = new ViewControllerNameMapper[viewControllerNameMappers.length];
36 System.arraycopy(
37 viewControllerNameMappers, 0,
38 this.viewControllerNameMappers, 0,
39 viewControllerNameMappers.length);
40 }
41
42 public String mapViewId(String viewId)
43 {
44 for (int i = 0; i<viewControllerNameMappers.length; i++)
45 {
46 String beanName = viewControllerNameMappers[i].mapViewId(viewId);
47 if (beanName != null)
48 {
49 return beanName;
50 }
51 }
52
53 return null;
54 }
55 }