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root/i-scream/projects/cms/source/server/uk/org/iscream/cms/server/core/ConfigurationServant.java

Comparing projects/cms/source/server/uk/org/iscream/cms/server/core/ConfigurationServant.java (file contents):
Revision 1.10 by ajm, Mon Nov 20 17:11:44 2000 UTC vs.
Revision 1.21 by tdb, Sat May 18 18:16:01 2002 UTC

#	Line 1 | Line 1
1	<	//---PACKAGE DECLARATION---
2	<
3	<	//---IMPORTS---
4	<	import uk.ac.ukc.iscream.core.*;
5	<	import java.util.*;
6	<	import java.io.*;
7	<	import java.text.DateFormat;
8	<
9	<	/**
10	<	* An implementation of the Configuration IDL
11	<	* This class allows i-scream modules to read and even
12	<	* set their configuration from a central location.
13	<	*
14	<	* When classes want their configuration, they contact
15	<	* the Configurator, which will locate their config,
16	<	* open it and pass it to a Configuration object which is
17	<	* then passed back to the calling class.
18	<	*
19	<	* Essentially this class behaves in a similar fashion
20	<	* to the java.util.Properties class.
21	<	*
22	<	* @author  $Author$
23	<	* @version $Id$
24	<	*/
25	<	class ConfigurationServant extends ConfigurationPOA {
26	<
27	<	//---FINAL ATTRIBUTES---
28	<
29	<	/**
30	<	* The current CVS revision of this class
31	<	*/
32	<	public final String REVISION = "$Revision$";
33	<
34	<	//---STATIC METHODS---
35	<
36	<	//---CONSTRUCTORS---
37	<
38	<	/**
39	<	* Creates a new ConfigurationServant taking a hook
40	<	* to a file containing the configuration.
41	<	*
42	<	* @param propertiesStream an InputStream connected to the configuration
43	<	*/
44	<	ConfigurationServant(Properties properties, long lastModified, Logger logRef) {
45	<	_properties = properties;
46	<	_lastModified = lastModified;
47	<	_logRef = logRef;
48	<	_logRef.write(this.toString(), Logger.SYSINIT, "created");
49	<	String date = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.MEDIUM).format(new Date(getLastModified()));
50	<	_logRef.write(this.toString(), Logger.SYSMSG, "last modified - " + date);
51	<	}
52	<
53	<	//---PUBLIC METHODS---
54	<
55	<	/**
56	<	* A wrapper for java.util.Properties.getProperty
57	<	* When given a key it returns the value of that key
58	<	* ie, key = value
59	<	*
60	<	* @param key the key the value of which is wanted
61	<	*/
62	<	public String getProperty(String key) {
63	<	return _properties.getProperty(key);
64	<	}
65	<
66	<	/**
67	<	* Overrides the {@link java.lang.Object#toString() Object.toString()}
68	<	* method to provide clean logging (every class should have this).
69	<	*
70	<	* @return the name of this class and its CVS revision
71	<	*/
72	<	public String toString() {
73	<	return this.getClass().getName() + "(" + REVISION.substring(11, REVISION.length() - 2) + ")";
74	<	}
75	<
76	<	//---PRIVATE METHODS---
77	<
78	<	protected void finalize() throws Throwable {
79	<	_logRef.write(this.toString(), Logger.DEBUG, "finalized (ick, us english!)");
80	<	}
81	<
82	<	//---ACCESSOR/MUTATOR METHODS---
83	<
84	<	/**
85	<	* Returns the date stamp of the configuration file
86	<	* this object is using.
87	<	*
88	<	* @return the last modified time for the file
89	<	*/
90	<	public long getLastModified() {
91	<	return _lastModified;
92	<	}
93	<
94	<	//---ATTRIBUTES---
95	<
96	<	/**
97	<	* The properties object that this class provides a CORBA interface to
98	<	*/
99	<	private Properties _properties = new Properties();
100	<
101	<	/**
102	<	* Reference to a Logger
103	<	*/
104	<	private Logger _logRef;
105	<
106	<	/**
107	<	* The date stamp of the configuration file
108	<	* this object is using
109	<	*/
110	<	private long _lastModified;
111	<
112	<	//---STATIC ATTRIBUTES---
113	<
114	<	}
1	>	/*
2	>	* i-scream central monitoring system
3	>	* Copyright (C) 2000-2002 i-scream
4	>	*
5	>	* This program is free software; you can redistribute it and/or
6	>	* modify it under the terms of the GNU General Public License
7	>	* as published by the Free Software Foundation; either version 2
8	>	* of the License, or (at your option) any later version.
9	>	*
10	>	* This program is distributed in the hope that it will be useful,
11	>	* but WITHOUT ANY WARRANTY; without even the implied warranty of
12	>	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13	>	* GNU General Public License for more details.
14	>	*
15	>	* You should have received a copy of the GNU General Public License
16	>	* along with this program; if not, write to the Free Software
17	>	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18	>	*/
19	>
20	>	//---PACKAGE DECLARATION---
21	>	package uk.org.iscream.cms.server.core;
22	>
23	>	//---IMPORTS---
24	>	import uk.org.iscream.cms.server.util.*;
25	>	import uk.org.iscream.cms.server.componentmanager.*;
26	>	import java.util.Properties;
27	>	import java.util.Date;
28	>	import java.text.DateFormat;
29	>
30	>	/**
31	>	* An implementation of the Configuration IDL
32	>	* This class allows i-scream modules to read and even
33	>	* set their configuration from a central location.
34	>	*
35	>	* When classes want their configuration, they contact
36	>	* the ConfigurationManager, which will locate their config,
37	>	* open it and pass it to a Configuration object which is
38	>	* then passed back to the calling class.
39	>	*
40	>	* Essentially this class behaves in a similar fashion
41	>	* to the java.util.Properties class.
42	>	*
43	>	* @author  $Author$
44	>	* @version $Id$
45	>	*/
46	>	class ConfigurationServant extends ConfigurationPOA {
47	>
48	>	//---FINAL ATTRIBUTES---
49	>
50	>	/**
51	>	* The current CVS revision of this class
52	>	*/
53	>	public final String REVISION = "$Revision$";
54	>
55	>	//---STATIC METHODS---
56	>
57	>	//---CONSTRUCTORS---
58	>
59	>	/**
60	>	* Creates a new ConfigurationServant taking a hook
61	>	* to a Properties object containing the configuration.
62	>	*
63	>	* @param properties a Properties object that contains the full properties for this configuration
64	>	* @param fileList the list of config files used to build this configuration
65	>	* @param lastModified the most recent last modified value for the file list
66	>	* @param logRef a reference to the logger system
67	>	*/
68	>	ConfigurationServant(Properties properties, String fileList, long lastModified) {
69	>	// assign local variables
70	>	_properties = properties;
71	>	_lastModified = lastModified;
72	>	_fileList = fileList;
73	>	_logger.write(toString(), Logger.SYSINIT, "created");
74	>	String date = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.MEDIUM).format(new Date(getLastModified()));
75	>	_logger.write(toString(), Logger.SYSMSG, "last modified - " + date);
76	>	_logger.write(toString(), Logger.DEBUG, "file list - " + _fileList);
77	>	}
78	>
79	>	//---PUBLIC METHODS---
80	>
81	>	/**
82	>	* A wrapper for java.util.Properties.getProperty
83	>	* When given a key it returns the value of that key
84	>	* ie, key = value
85	>	*
86	>	* @param key the key the value of which is wanted
87	>	*/
88	>	public String getProperty(String key) {
89	>	return _properties.getProperty(key);
90	>	}
91	>
92	>	/**
93	>	* Overrides the {@link java.lang.Object#toString() Object.toString()}
94	>	* method to provide clean logging (every class should have this).
95	>	*
96	>	* This uses the uk.org.iscream.cms.server.util.FormatName class
97	>	* to format the toString()
98	>	*
99	>	* @return the name of this class and its CVS revision
100	>	*/
101	>	public String toString() {
102	>	return FormatName.getName(
103	>	_name,
104	>	getClass().getName(),
105	>	REVISION);
106	>	}
107	>
108	>	/**
109	>	* Unhooks this Configuration object from the ORB
110	>	*/
111	>	public void disconnect() {
112	>	try {
113	>	byte[] oid = _refman.getRootPOA().servant_to_id(this);
114	>	_refman.getRootPOA().deactivate_object(oid);
115	>	} catch(Exception e) {
116	>	_logger.write(this.toString(), Logger.ERROR, "disconnect failed: "+e);
117	>	}
118	>	}
119	>
120	>
121	>	//---PRIVATE METHODS---
122	>
123	>	/**
124	>	* Overridden for debugging purposes
125	>	* to see when an instance of this class
126	>	* is destroyed
127	>	*/
128	>	protected void finalize() throws Throwable {
129	>	_logger.write(this.toString(), Logger.DEBUG, "finalized");
130	>	}
131	>
132	>	//---ACCESSOR/MUTATOR METHODS---
133	>
134	>	/**
135	>	* Returns the date stamp of the configuration file
136	>	* this object is using.
137	>	*
138	>	* @return the last modified time for the file
139	>	*/
140	>	public long getLastModified() {
141	>	return _lastModified;
142	>	}
143	>
144	>	/**
145	>	* Returns the list of files used to build the Properties
146	>	* this object is using.
147	>	*
148	>	* @return the list of files
149	>	*/
150	>	public String getFileList() {
151	>	return _fileList;
152	>	}
153	>
154	>	//---ATTRIBUTES---
155	>
156	>	/**
157	>	* The properties object that this class provides a CORBA interface to
158	>	*/
159	>	private Properties _properties = new Properties();
160	>
161	>	/**
162	>	* This holds a reference to the
163	>	* system logger that is being used.
164	>	*/
165	>	private Logger _logger = ReferenceManager.getInstance().getLogger();
166	>
167	>	/**
168	>	* A reference to the reference manager in use
169	>	*/
170	>	private ReferenceManager _refman = ReferenceManager.getInstance();
171	>
172	>	/**
173	>	* This is the friendly identifier of the
174	>	* component this class is running in.
175	>	* eg, a Filter may be called "filter1",
176	>	* If this class does not have an owning
177	>	* component,  a name from the configuration
178	>	* can be placed here.  This name could also
179	>	* be changed to null for utility classes.
180	>	*/
181	>	private String _name = Core.NAME;
182	>
183	>	/**
184	>	* The date stamp of the configuration file
185	>	* this object is using
186	>	*/
187	>	private long _lastModified;
188	>
189	>	/**
190	>	* The list of files that were used to build this configuration
191	>	*/
192	>	private String _fileList;
193	>
194	>	//---STATIC ATTRIBUTES---
195	>
196	>	}

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