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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 *
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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 package org.apache.james.transport;
20 import java.io.File;
21 import java.util.Vector;
22
23 import org.apache.avalon.framework.activity.Initializable;
24 import org.apache.avalon.framework.configuration.Configurable;
25 import org.apache.avalon.framework.configuration.Configuration;
26 import org.apache.avalon.framework.configuration.ConfigurationException;
27 import org.apache.avalon.framework.context.Context;
28 import org.apache.avalon.framework.context.ContextException;
29 import org.apache.avalon.framework.context.Contextualizable;
30 import org.apache.avalon.framework.logger.AbstractLogEnabled;
31 import org.apache.avalon.framework.service.DefaultServiceManager;
32 import org.apache.avalon.framework.service.ServiceException;
33 import org.apache.avalon.framework.service.ServiceManager;
34 import org.apache.avalon.framework.service.Serviceable;
35 import org.apache.mailet.MailetContext;
36
37 /***
38 *
39 * $Id: Loader.java 494012 2007-01-08 10:23:58Z norman $
40 */
41 public abstract class Loader extends AbstractLogEnabled implements Contextualizable, Serviceable, Configurable, Initializable {
42
43 protected String baseDirectory = null;
44 protected final String MAILET_PACKAGE = "mailetpackage";
45 protected final String MATCHER_PACKAGE = "matcherpackage";
46 /***
47 * The list of packages that may contain Mailets or matchers
48 */
49 protected Vector packages;
50
51 /***
52 * System service manager
53 */
54 private ServiceManager serviceManager;
55
56 /***
57 * Mailet context
58 */
59 protected MailetContext mailetContext;
60
61 /***
62 * @see org.apache.avalon.framework.context.Contextualizable#contextualize(Context)
63 */
64 public void contextualize(final Context context) throws ContextException
65 {
66 try
67 {
68 baseDirectory = ((File)context.get( "app.home") ).getCanonicalPath();
69 }
70 catch (Throwable e)
71 {
72 getLogger().error( "can't get base directory for mailet loader" );
73 throw new ContextException("can't contextualise mailet loader " + e.getMessage(), e);
74 }
75 }
76
77 protected void getPackages(Configuration conf, String packageType)
78 throws ConfigurationException {
79 packages = new Vector();
80 packages.addElement("");
81 final Configuration[] pkgConfs = conf.getChildren(packageType);
82 for (int i = 0; i < pkgConfs.length; i++) {
83 Configuration c = pkgConfs[i];
84 String packageName = c.getValue();
85 if (!packageName.endsWith(".")) {
86 packageName += ".";
87 }
88 packages.addElement(packageName);
89 }
90 }
91
92 /***
93 * @see org.apache.avalon.framework.service.Serviceable#service(org.apache.avalon.framework.service.ServiceManager)
94 */
95 public void service(ServiceManager sm) throws ServiceException {
96 serviceManager = new DefaultServiceManager(sm);
97 }
98
99 /***
100 * @see org.apache.avalon.framework.activity.Initializable#initialize()
101 */
102 public void initialize() throws Exception {
103 mailetContext = (MailetContext) serviceManager.lookup("org.apache.mailet.MailetContext");
104 }
105
106 /***
107 * @see org.apache.avalon.framework.configuration.Configurable#configure(org.apache.avalon.framework.configuration.Configuration)
108 */
109 public abstract void configure(Configuration arg0) throws ConfigurationException;
110
111 }