client/javacli/XMLStreamParser.java

/* 
 * i-scream central monitoring system
 * http://www.i-scream.org.uk
 * 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---

//---IMPORTS---
import java.io.*;
import java.util.ArrayList;

import org.xml.sax.*;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;

/**
 * XMLStreamParser - Used to build XMLPacket objects.
 *
 * @author  $Author: tdb $
 * @version $Id: XMLStreamParser.java,v 1.3 2002/05/21 16:47:11 tdb Exp $
 */
public class XMLStreamParser extends HandlerBase {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public final String REVISION = "$Revision: 1.3 $";
    
//---STATIC METHODS---

//---CONSTRUCTORS---

    /**
     * Constructor for the XMLStreamParser.
     */
    public XMLStreamParser (XMLPacket packet) {
        _packet = packet;
    }

//---PUBLIC METHODS---


    public void startDocument () throws SAXException {
        //System.out.println("Packet found");
    }

    public void endDocument () throws SAXException {
        //System.out.println("Packet Ended");
    }

    /**
     * Add each tag's attribute to the XMLPacket.
     * Note that all attributes within an opening tag are
     * stored as "someroot.sometag.attributes.attribute_name"
     * E.g. If <packet> is the root node, then:
     *     <packet machine_name="raptor">
     * is stored as:
     *     "packet.attributes.machine_name"
     * within the XMLPacket.
     */
    public void startElement (String name, AttributeList attrs) throws SAXException {
        _indentLevel++;
        _tagList.add(name);
        if (attrs != null) {
            for (int i = 0; i < attrs.getLength (); i++) {
                _packet.addParam(getPath()+".attributes."+attrs.getName(i), attrs.getValue(i));
            }
        }
    }

    /**
     * When an XML element is finished with, we must remove
     * the tag name from the tagList and decrement the indent
     * level.
     */
    public void endElement (String name) throws SAXException {
        _tagList.remove(_tagList.size()-1);    
        _indentLevel--;
    }

    /**
     * Any text falling within a pair of terminal tags must
     * be added to the XMLPacket.  Trim leading and trailing
     * spaces and do not bother to add if there is no data
     * specified within the tags.
     */
    public void characters (char[] buf, int offset, int len) throws SAXException {
        String s = new String(buf, offset, len);
        if (!s.trim().equals("")) {
            _packet.addParam(getPath(), s);
        }
    }

//---PRIVATE METHODS---
    
    /**
     * Return the heirarchical string to be used as a key value
     * in the XMLPacket.
     */
    private String getPath () {
        String path = (String)_tagList.get(0);
        if (_tagList.size() > 0) {
            for (int i = 1 ; i < _tagList.size() ; i++) {
                path = path + "." + (String)_tagList.get(i);
            }
        }
        return path;
    }

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

//---ATTRIBUTES---

    private int _indentLevel = 0;
    private ArrayList _tagList = new ArrayList();
    private XMLPacket _packet;

//---STATIC ATTRIBUTES---

}
Revision:	1.4
Committed:	Mon Jun 10 14:10:43 2002 UTC (22 years, 5 months ago) by tdb
Branch:	MAIN
CVS Tags:	HEAD
Changes since 1.3:	+2 -2 lines
State:	*FILE REMOVED*
Log Message:	Tidy up of files. These are all old things that are not only no longer used but are also probably useless to anyone other than us. This saves checking them out all the time, and makes the "cms/source" tree contain only current stuff. They'll still exist in the attic's though :)
#	User	Rev	Content
1	tdb	1.2	/*
2	tdb	1.3	* i-scream central monitoring system
3			* http://www.i-scream.org.uk
4	tdb	1.2	* Copyright (C) 2000-2002 i-scream
5			*
6			* This program is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU General Public License
8			* as published by the Free Software Foundation; either version 2
9			* of the License, or (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19			*/
20
21	pjm2	1.1	//---PACKAGE DECLARATION---
22
23			//---IMPORTS---
24			import java.io.*;
25			import java.util.ArrayList;
26
27			import org.xml.sax.*;
28			import javax.xml.parsers.SAXParserFactory;
29			import javax.xml.parsers.ParserConfigurationException;
30			import javax.xml.parsers.SAXParser;
31
32			/**
33			* XMLStreamParser - Used to build XMLPacket objects.
34			*
35	tdb	1.3	* @author $Author: tdb $
36	tdb	1.4	* @version $Id: XMLStreamParser.java,v 1.3 2002/05/21 16:47:11 tdb Exp $
37	pjm2	1.1	*/
38			public class XMLStreamParser extends HandlerBase {
39
40			//---FINAL ATTRIBUTES---
41
42			/**
43			* The current CVS revision of this class
44			*/
45	tdb	1.4	public final String REVISION = "$Revision: 1.3 $";
46	pjm2	1.1
47			//---STATIC METHODS---
48
49			//---CONSTRUCTORS---
50
51			/**
52			* Constructor for the XMLStreamParser.
53			*/
54			public XMLStreamParser (XMLPacket packet) {
55			_packet = packet;
56			}
57
58			//---PUBLIC METHODS---
59
60
61			public void startDocument () throws SAXException {
62			//System.out.println("Packet found");
63			}
64
65			public void endDocument () throws SAXException {
66			//System.out.println("Packet Ended");
67			}
68
69			/**
70			* Add each tag's attribute to the XMLPacket.
71			* Note that all attributes within an opening tag are
72			* stored as "someroot.sometag.attributes.attribute_name"
73			* E.g. If <packet> is the root node, then:
74			* <packet machine_name="raptor">
75			* is stored as:
76			* "packet.attributes.machine_name"
77			* within the XMLPacket.
78			*/
79			public void startElement (String name, AttributeList attrs) throws SAXException {
80			_indentLevel++;
81			_tagList.add(name);
82			if (attrs != null) {
83			for (int i = 0; i < attrs.getLength (); i++) {
84			_packet.addParam(getPath()+".attributes."+attrs.getName(i), attrs.getValue(i));
85			}
86			}
87			}
88
89			/**
90			* When an XML element is finished with, we must remove
91			* the tag name from the tagList and decrement the indent
92			* level.
93			*/
94			public void endElement (String name) throws SAXException {
95			_tagList.remove(_tagList.size()-1);
96			_indentLevel--;
97			}
98
99			/**
100			* Any text falling within a pair of terminal tags must
101			* be added to the XMLPacket. Trim leading and trailing
102			* spaces and do not bother to add if there is no data
103			* specified within the tags.
104			*/
105			public void characters (char[] buf, int offset, int len) throws SAXException {
106			String s = new String(buf, offset, len);
107			if (!s.trim().equals("")) {
108			_packet.addParam(getPath(), s);
109			}
110			}
111
112			//---PRIVATE METHODS---
113
114			/**
115			* Return the heirarchical string to be used as a key value
116			* in the XMLPacket.
117			*/
118			private String getPath () {
119			String path = (String)_tagList.get(0);
120			if (_tagList.size() > 0) {
121			for (int i = 1 ; i < _tagList.size() ; i++) {
122			path = path + "." + (String)_tagList.get(i);
123			}
124			}
125			return path;
126			}
127
128			//---ACCESSOR/MUTATOR METHODS---
129
130			//---ATTRIBUTES---
131
132			private int _indentLevel = 0;
133			private ArrayList _tagList = new ArrayList();
134			private XMLPacket _packet;
135
136			//---STATIC ATTRIBUTES---
137
138			}