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
20 package org.apache.myfaces.tobago.portlet;
21
22 import javax.portlet.PortletRequest;
23
24 /**
25 * Static utility class for portlet-related operations.
26 */
27 public final class PortletUtils {
28
29 private static final boolean PORTLET_API_AVAILABLE;
30
31 static {
32 boolean result;
33 try {
34 result = PortletRequest.class != null;
35 } catch (final NoClassDefFoundError e) {
36 result = false;
37 }
38 PORTLET_API_AVAILABLE = result;
39 }
40
41 private PortletUtils() {
42 // avoid instantiation
43 }
44
45 /**
46 * The Portlet API is optional in the class path. We are only allowed to check instance of e. g. PortletRequest,
47 * if the API exists.
48 *
49 * @return Are the Portlet classes available?
50 */
51 public static boolean isPortletApiAvailable() {
52 return PORTLET_API_AVAILABLE;
53 }
54
55 }