filter/plugins/EnforceEssentialData__Plugin.java

/* 
 * i-scream central monitoring system
 * Copyright (C) 2000-2002 i-scream
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

//---PACKAGE DECLARATION---
package uk.org.iscream.cms.server.filter.plugins;

//---IMPORTS---
import uk.org.iscream.cms.server.filter.PluginFilter;
import uk.org.iscream.cms.server.filter.*;
import uk.org.iscream.cms.server.core.*;
import uk.org.iscream.cms.server.util.*;
import uk.org.iscream.cms.server.componentmanager.*;

/**
 * This plugin rejects packets that do not
 * contain all of the 'essential' data.
 *
 * @author  $Author: tdb $
 * @version $Id: EnforceEssentialData__Plugin.java,v 1.11 2001/12/10 22:20:23 tdb Exp $
 */
public class EnforceEssentialData__Plugin implements PluginFilter {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public final String REVISION = "$Revision: 1.11 $";
    
    public final String DESC = "Rejects packets that do not have an ip, machine_name, seq_no, date and type specified as attributes of the root packet tag.";
    
//---STATIC METHODS---

//---CONSTRUCTORS---

//---PUBLIC METHODS---

    // apply the filter and return true if successful.
    public boolean runFilter(XMLPacket packet){
        
        // return true if a heartbeat packet seems ok
        if (packet.getParam("packet.attributes.type").equals("heartbeat")
                && packet.getParam("packet.attributes.date") != null
                && packet.getParam("packet.attributes.ip") != null
                && packet.getParam("packet.attributes.machine_name") != null){
            return true;
        }
        
        // return true if a queueStat packet seems ok
        if (packet.getParam("packet.attributes.type").equals("queueStat")
                && packet.getParam("packet.attributes.date") != null
                && packet.getParam("packet.attributes.name") != null){
            return true;
        }
        
        // return false if any of the essential data is not present
        // in a "data" packet
        if (packet.getParam("packet.attributes.machine_name") == null
                || packet.getParam("packet.attributes.ip") == null
                || packet.getParam("packet.attributes.seq_no") == null
                || packet.getParam("packet.attributes.date") == null
                || packet.getParam("packet.attributes.type") == null){
            return false;
        }
        
        // otherwise return true!
        return true;
        
    }

    /**
     * Overrides the {@link java.lang.Object#toString() Object.toString()}
     * method to provide clean logging (every class should have this).
     *
     * This uses the uk.org.iscream.cms.server.util.NameFormat class
     * to format the toString()
     *
     * @return the name of this class and its CVS revision
     */
    public String toString() {
        return FormatName.getName(
            _name,
            getClass().getName(),
            REVISION);
    }

    /**
     * return the String representation of what the filter does
     */
    public String getDescription(){
        return DESC;
    }

//---PRIVATE METHODS---

//---ACCESSOR/MUTATOR METHODS---

//---ATTRIBUTES---

    /**
     * This is the friendly identifier of the
     * component this class is running in.
     * eg, a Filter may be called "filter1",
     * If this class does not have an owning
     * component,  a name from the configuration
     * can be placed here.  This name could also
     * be changed to null for utility classes.
     */
    private String _name = FilterMain.NAME;

    /**
     * This holds a reference to the
     * system logger that is being used.
     */
    private Logger _logger = ReferenceManager.getInstance().getLogger();

//---STATIC ATTRIBUTES---

}
Revision:	1.12
Committed:	Sat May 18 18:16:02 2002 UTC (22 years ago) by tdb
Branch:	MAIN
Changes since 1.11:	+22 -3 lines
Log Message:	i-scream is now licensed under the GPL. I've added the GPL headers to every source file, and put a full copy of the license in the appropriate places. I think I've covered everything. This is going to be a mad commit ;)
#	Content
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.filter.plugins;
22
23	//---IMPORTS---
24	import uk.org.iscream.cms.server.filter.PluginFilter;
25	import uk.org.iscream.cms.server.filter.*;
26	import uk.org.iscream.cms.server.core.*;
27	import uk.org.iscream.cms.server.util.*;
28	import uk.org.iscream.cms.server.componentmanager.*;
29
30	/**
31	* This plugin rejects packets that do not
32	* contain all of the 'essential' data.
33	*
34	* @author $Author: tdb $
35	* @version $Id: EnforceEssentialData__Plugin.java,v 1.11 2001/12/10 22:20:23 tdb Exp $
36	*/
37	public class EnforceEssentialData__Plugin implements PluginFilter {
38
39	//---FINAL ATTRIBUTES---
40
41	/**
42	* The current CVS revision of this class
43	*/
44	public final String REVISION = "$Revision: 1.11 $";
45
46	public final String DESC = "Rejects packets that do not have an ip, machine_name, seq_no, date and type specified as attributes of the root packet tag.";
47
48	//---STATIC METHODS---
49
50	//---CONSTRUCTORS---
51
52	//---PUBLIC METHODS---
53
54	// apply the filter and return true if successful.
55	public boolean runFilter(XMLPacket packet){
56
57	// return true if a heartbeat packet seems ok
58	if (packet.getParam("packet.attributes.type").equals("heartbeat")
59	&& packet.getParam("packet.attributes.date") != null
60	&& packet.getParam("packet.attributes.ip") != null
61	&& packet.getParam("packet.attributes.machine_name") != null){
62	return true;
63	}
64
65	// return true if a queueStat packet seems ok
66	if (packet.getParam("packet.attributes.type").equals("queueStat")
67	&& packet.getParam("packet.attributes.date") != null
68	&& packet.getParam("packet.attributes.name") != null){
69	return true;
70	}
71
72	// return false if any of the essential data is not present
73	// in a "data" packet
74	if (packet.getParam("packet.attributes.machine_name") == null
75	\|\| packet.getParam("packet.attributes.ip") == null
76	\|\| packet.getParam("packet.attributes.seq_no") == null
77	\|\| packet.getParam("packet.attributes.date") == null
78	\|\| packet.getParam("packet.attributes.type") == null){
79	return false;
80	}
81
82	// otherwise return true!
83	return true;
84
85	}
86
87	/**
88	* Overrides the {@link java.lang.Object#toString() Object.toString()}
89	* method to provide clean logging (every class should have this).
90	*
91	* This uses the uk.org.iscream.cms.server.util.NameFormat class
92	* to format the toString()
93	*
94	* @return the name of this class and its CVS revision
95	*/
96	public String toString() {
97	return FormatName.getName(
98	_name,
99	getClass().getName(),
100	REVISION);
101	}
102
103	/**
104	* return the String representation of what the filter does
105	*/
106	public String getDescription(){
107	return DESC;
108	}
109
110	//---PRIVATE METHODS---
111
112	//---ACCESSOR/MUTATOR METHODS---
113
114	//---ATTRIBUTES---
115
116	/**
117	* This is the friendly identifier of the
118	* component this class is running in.
119	* eg, a Filter may be called "filter1",
120	* If this class does not have an owning
121	* component, a name from the configuration
122	* can be placed here. This name could also
123	* be changed to null for utility classes.
124	*/
125	private String _name = FilterMain.NAME;
126
127	/**
128	* This holds a reference to the
129	* system logger that is being used.
130	*/
131	private Logger _logger = ReferenceManager.getInstance().getLogger();
132
133	//---STATIC ATTRIBUTES---
134
135	}