| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
| JSFRuntimeTracker |
|
| 3.0;3 |
| 1 | /* |
|
| 2 | * Licensed to the Apache Software Foundation (ASF) under one or more |
|
| 3 | * contributor license agreements. See the NOTICE file distributed with |
|
| 4 | * this work for additional information regarding copyright ownership. |
|
| 5 | * The ASF licenses this file to you under the Apache License, Version 2.0 |
|
| 6 | * (the "License"); you may not use this file except in compliance with |
|
| 7 | * the License. You may obtain a copy of the License at |
|
| 8 | * |
|
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
|
| 10 | * |
|
| 11 | * Unless required by applicable law or agreed to in writing, software |
|
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
|
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
| 14 | * See the License for the specific language governing permissions and |
|
| 15 | * limitations under the License. |
|
| 16 | */ |
|
| 17 | ||
| 18 | /* |
|
| 19 | * $Id: JSFRuntimeTracker.java 465411 2006-10-18 23:06:50Z gvanmatre $ |
|
| 20 | */ |
|
| 21 | ||
| 22 | package org.apache.shale.clay.utils; |
|
| 23 | ||
| 24 | /** |
|
| 25 | * <p>This utility class is used to determine the |
|
| 26 | * JSF runtime that will take presidency.</p> |
|
| 27 | */ |
|
| 28 | public final class JSFRuntimeTracker { |
|
| 29 | ||
| 30 | /** |
|
| 31 | * <p>Utility Class hides the default constructor.</p> |
|
| 32 | */ |
|
| 33 | private JSFRuntimeTracker() { |
|
| 34 | 0 | super(); |
| 35 | 0 | } |
| 36 | ||
| 37 | /** |
|
| 38 | * <p>This enumeration indicates the JSF RI 1.1.x runtime is installed.</p> |
|
| 39 | */ |
|
| 40 | public static final int RI_1_1 = 0; |
|
| 41 | ||
| 42 | /** |
|
| 43 | * <p>This enumeration indicates the MyFaces 1.1.x runtime is installed.</p> |
|
| 44 | */ |
|
| 45 | public static final int MYFACES_1_1 = 1; |
|
| 46 | ||
| 47 | /** |
|
| 48 | * <p>This enumeration indicates the JSF RI 1.2.x runtime is installed.</p> |
|
| 49 | */ |
|
| 50 | public static final int RI_1_2 = 2; |
|
| 51 | ||
| 52 | /** |
|
| 53 | * <p>Captures the active runtime once determined.</p> |
|
| 54 | */ |
|
| 55 | 0 | private static int activeRuntime = -1; |
| 56 | ||
| 57 | /** |
|
| 58 | * <p>This method will try to load some key classes in the various runtimes |
|
| 59 | * to determine the active runtime. The enumerations are as follows: |
|
| 60 | * <code>RI_1_1</code>, <code>MYFACES_1_1</code>, <code>RI_1_2</code>.</p> |
|
| 61 | * |
|
| 62 | * @return an enumeration that indicates the active JSF runtime |
|
| 63 | */ |
|
| 64 | public static int getJsfRuntime() { |
|
| 65 | 0 | if (activeRuntime > 0) { |
| 66 | 0 | return activeRuntime; |
| 67 | } |
|
| 68 | try { |
|
| 69 | // JSF RI 1.2 |
|
| 70 | 0 | Class.forName("com.sun.faces.config.JSFVersionTracker"); |
| 71 | 0 | activeRuntime = RI_1_2; |
| 72 | 0 | } catch (ClassNotFoundException e1) { |
| 73 | try { |
|
| 74 | 0 | Class.forName("org.apache.myfaces.application.jsp.JspViewHandlerImpl"); |
| 75 | 0 | activeRuntime = MYFACES_1_1; //myfaces 1.1.x |
| 76 | 0 | } catch (ClassNotFoundException e2) { |
| 77 | 0 | activeRuntime = RI_1_1; //JSF RI 1.1 |
| 78 | 0 | } |
| 79 | 0 | } |
| 80 | ||
| 81 | 0 | return activeRuntime; |
| 82 | } |
|
| 83 | } |