Source Code Cross Referenced for Chgrp.java in  » Build » ANT » org » apache » tools » ant » taskdefs » optional » unix » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Build » ANT » org.apache.tools.ant.taskdefs.optional.unix 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


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:
19:        /*
20:         * Since the initial version of this file was deveolped on the clock on
21:         * an NSF grant I should say the following boilerplate:
22:         *
23:         * This material is based upon work supported by the National Science
24:         * Foundaton under Grant No. EIA-0196404. Any opinions, findings, and
25:         * conclusions or recommendations expressed in this material are those
26:         * of the author and do not necessarily reflect the views of the
27:         * National Science Foundation.
28:         */
29:
30:        package org.apache.tools.ant.taskdefs.optional.unix;
31:
32:        import org.apache.tools.ant.BuildException;
33:
34:        /**
35:         * Chgrp equivalent for unix-like environments.
36:         *
37:         * @since Ant 1.6
38:         *
39:         * @ant.task category="filesystem"
40:         */
41:        public class Chgrp extends AbstractAccessTask {
42:
43:            private boolean haveGroup = false;
44:
45:            /**
46:             * Chgrp task for setting unix group of a file.
47:             */
48:            public Chgrp() {
49:                super .setExecutable("chgrp");
50:            }
51:
52:            /**
53:             * Set the group atribute.
54:             *
55:             * @param group    The new group for the file(s) or directory(ies)
56:             */
57:            public void setGroup(String group) {
58:                createArg().setValue(group);
59:                haveGroup = true;
60:            }
61:
62:            /**
63:             * Ensure that all the required arguments and other conditions have
64:             * been set.
65:             */
66:            protected void checkConfiguration() {
67:                if (!haveGroup) {
68:                    throw new BuildException(
69:                            "Required attribute group not set in " + "chgrp",
70:                            getLocation());
71:                }
72:                super .checkConfiguration();
73:            }
74:
75:            /**
76:             * We don't want to expose the executable atribute, so overide it.
77:             *
78:             * @param e User supplied executable that we won't accept.
79:             */
80:            public void setExecutable(String e) {
81:                throw new BuildException(getTaskType()
82:                        + " doesn\'t support the executable" + " attribute",
83:                        getLocation());
84:            }
85:        }
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