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Java > Open Source Codes > org > apache > tools > ant > types > spi > Provider


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 package org.apache.tools.ant.types.spi;
19
20 import org.apache.tools.ant.ProjectComponent;
21 import org.apache.tools.ant.BuildException;
22
23 /**
24  * ANT Jar-Task SPI extension
25  * This class corresponds to the nested element
26  * <provider type="type"> in the <service type="">
27  * nested element of the jar task.
28  * @see <a HREF="http://issues.apache.org/bugzilla/show_bug.cgi?id=31520">
29  * http://issues.apache.org/bugzilla/show_bug.cgi?id=31520</a>
30  */
31 public class Provider extends ProjectComponent {
32     private String JavaDoc type;
33
34     /**
35      * @return the class name for
36      */
37     public String JavaDoc getClassName() {
38         return type;
39     }
40
41     /**
42      * Set the provider classname.
43      * @param type the value to set.
44      */
45     public void setClassName(String JavaDoc type) {
46         this.type = type;
47     }
48
49     /**
50      * Check if the component has been configured correctly.
51      */
52     public void check() {
53         if (type == null) {
54             throw new BuildException(
55                 "classname attribute must be set for provider element",
56                 getLocation());
57         }
58         if (type.length() == 0) {
59             throw new BuildException(
60                 "Invalid empty classname", getLocation());
61         }
62     }
63 }
64
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