01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * 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: package org.apache.jetspeed.components.factorybeans;
18:
19: import javax.servlet.ServletConfig;
20:
21: import org.springframework.beans.factory.config.AbstractFactoryBean;
22:
23: /**
24: * <p>
25: * PreSetInstanceFactoryBean
26: * </p>
27: * <p>
28: *
29: * </p>
30: * @author <a href="mailto:weaver@apache.org">Scott T. Weaver</a>
31: * @version $Id: ServletConfigFactoryBean.java 516448 2007-03-09 16:25:47Z ate $
32: *
33: */
34: public class ServletConfigFactoryBean extends AbstractFactoryBean {
35:
36: private static ServletConfig servletConfig;
37:
38: /**
39: * <p>
40: * createInstance
41: * </p>
42: *
43: * @see org.springframework.beans.factory.config.AbstractFactoryBean#createInstance()
44: * @return
45: * @throws Exception
46: */
47: protected final Object createInstance() throws Exception {
48: verifyState();
49: return servletConfig;
50: }
51:
52: /**
53: * <p>
54: * getObjectType
55: * </p>
56: * @see org.springframework.beans.factory.FactoryBean#getObjectType()
57: * @return
58: */
59: public final Class getObjectType() {
60: return ServletConfig.class;
61: }
62:
63: public final static void setServletConfig(
64: ServletConfig servletConfig) {
65: ServletConfigFactoryBean.servletConfig = servletConfig;
66: }
67:
68: protected final void verifyState() throws IllegalStateException {
69: if (servletConfig == null) {
70: throw new IllegalStateException(
71: "You invoke the ServletConfigFactoryBean.setServletConfig() "
72: + "method prior to attempting to get the ServletConfig.");
73: }
74: }
75: }
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