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: */
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 type;
33:
34: /**
35: * @return the class name for
36: */
37: public String 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 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("Invalid empty classname",
60: getLocation());
61: }
62: }
63: }
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