1 |
tdb |
1.15 |
/* |
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 |
ajm |
1.5 |
//---PACKAGE DECLARATION--- |
21 |
tdb |
1.13 |
package uk.org.iscream.cms.server.util; |
22 |
ajm |
1.5 |
|
23 |
|
|
//---IMPORTS--- |
24 |
|
|
import java.io.*; |
25 |
tdb |
1.12 |
import java.util.LinkedList; |
26 |
|
|
import java.util.Iterator; |
27 |
ajm |
1.5 |
import org.xml.sax.*; |
28 |
tdb |
1.8 |
import org.xml.sax.helpers.*; |
29 |
tdb |
1.10 |
import javax.xml.parsers.*; |
30 |
ajm |
1.5 |
|
31 |
|
|
/** |
32 |
|
|
* XMLStringParser - Used to assist in creating XMLPacket objects. |
33 |
|
|
* |
34 |
tdb |
1.15 |
* @author $Author: tdb $ |
35 |
|
|
* @version $Id: XMLStringParser.java,v 1.14 2002/03/13 12:44:55 tdb Exp $ |
36 |
ajm |
1.5 |
*/ |
37 |
tdb |
1.8 |
public class XMLStringParser extends DefaultHandler { |
38 |
ajm |
1.5 |
|
39 |
|
|
//---FINAL ATTRIBUTES--- |
40 |
|
|
|
41 |
|
|
/** |
42 |
|
|
* The current CVS revision of this class |
43 |
|
|
*/ |
44 |
tdb |
1.15 |
public final String REVISION = "$Revision: 1.14 $"; |
45 |
ajm |
1.5 |
|
46 |
|
|
//---STATIC METHODS--- |
47 |
|
|
|
48 |
|
|
//---CONSTRUCTORS--- |
49 |
|
|
|
50 |
|
|
/** |
51 |
|
|
* No-args constructor. Generally not used. |
52 |
|
|
*/ |
53 |
|
|
public XMLStringParser () { |
54 |
tdb |
1.9 |
_packet = new XMLPacket(); |
55 |
ajm |
1.5 |
} |
56 |
|
|
|
57 |
|
|
/** |
58 |
|
|
* Constructor for accepting a reference to an XMLPacket |
59 |
|
|
*/ |
60 |
|
|
public XMLStringParser (XMLPacket packet) { |
61 |
tdb |
1.9 |
_packet = packet; |
62 |
ajm |
1.5 |
} |
63 |
|
|
|
64 |
|
|
//---PUBLIC METHODS--- |
65 |
|
|
|
66 |
|
|
//=========================================================== |
67 |
|
|
// SAX DocumentHandler methods |
68 |
|
|
//=========================================================== |
69 |
|
|
|
70 |
tdb |
1.9 |
/** |
71 |
|
|
* Add each tag's attribute to the XMLPacket. |
72 |
ajm |
1.5 |
* Note that all attributes within an opening tag are |
73 |
|
|
* stored as "someroot.sometag.attributes.attribute_name" |
74 |
|
|
* E.g. If <packet> is the root node, then: |
75 |
|
|
* <packet machine_name="raptor"> |
76 |
|
|
* is stored as: |
77 |
|
|
* "packet.attributes.machine_name" |
78 |
|
|
* within the XMLPacket. |
79 |
|
|
*/ |
80 |
tdb |
1.9 |
public void startElement (String uri, String name, String qName, Attributes atts) { |
81 |
tdb |
1.14 |
_tagList.addLast(qName); |
82 |
tdb |
1.9 |
if (atts != null) { |
83 |
|
|
for (int i = 0; i < atts.getLength (); i++) { |
84 |
tdb |
1.14 |
_packet.addParam(getPath()+".attributes."+atts.getQName(i), atts.getValue(i)); |
85 |
ajm |
1.5 |
} |
86 |
|
|
} |
87 |
|
|
} |
88 |
tdb |
1.10 |
|
89 |
ajm |
1.5 |
/** |
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 |
tdb |
1.9 |
public void endElement (String uri, String name, String qName) { |
95 |
tdb |
1.12 |
_tagList.removeLast(); |
96 |
ajm |
1.5 |
} |
97 |
tdb |
1.10 |
|
98 |
ajm |
1.5 |
/** |
99 |
|
|
* Any text falling within a pair of terminal tags must |
100 |
|
|
* be added to the XMLPacket. Trim leading and trailing |
101 |
|
|
* spaces and do not bother to add if there is no data |
102 |
|
|
* specified within the tags. |
103 |
|
|
*/ |
104 |
|
|
public void characters (char[] buf, int offset, int len) throws SAXException { |
105 |
|
|
String s = new String(buf, offset, len); |
106 |
tdb |
1.9 |
_packet.addParam(getPath(), s); |
107 |
ajm |
1.5 |
} |
108 |
|
|
|
109 |
|
|
/** |
110 |
|
|
* Overrides the {@link java.lang.Object#toString() Object.toString()} |
111 |
|
|
* method to provide clean logging (every class should have this). |
112 |
|
|
* |
113 |
tdb |
1.13 |
* This uses the uk.org.iscream.cms.server.util.NameFormat class |
114 |
ajm |
1.5 |
* to format the toString() |
115 |
|
|
* |
116 |
|
|
* @return the name of this class and its CVS revision |
117 |
|
|
*/ |
118 |
|
|
public String toString() { |
119 |
|
|
return FormatName.getName( |
120 |
|
|
_name, |
121 |
|
|
getClass().getName(), |
122 |
|
|
REVISION); |
123 |
|
|
} |
124 |
|
|
|
125 |
|
|
//---PRIVATE METHODS--- |
126 |
|
|
|
127 |
|
|
//=========================================================== |
128 |
|
|
// Helpers ... |
129 |
|
|
//=========================================================== |
130 |
|
|
|
131 |
|
|
/** |
132 |
|
|
* Return the heirarchical string to be used as a key value |
133 |
|
|
* in the XMLPacket. |
134 |
|
|
*/ |
135 |
|
|
private String getPath () { |
136 |
tdb |
1.12 |
String path = ""; |
137 |
tdb |
1.9 |
if (_tagList.size() > 0) { |
138 |
tdb |
1.12 |
Iterator i = _tagList.iterator(); |
139 |
|
|
path = (String) i.next(); |
140 |
|
|
while(i.hasNext()) { |
141 |
|
|
path = path + "." + (String) i.next(); |
142 |
ajm |
1.5 |
} |
143 |
|
|
} |
144 |
|
|
return path; |
145 |
|
|
} |
146 |
|
|
|
147 |
|
|
//---ACCESSOR/MUTATOR METHODS--- |
148 |
tdb |
1.10 |
|
149 |
|
|
/** |
150 |
|
|
* Accessor to the XMLPacket. |
151 |
|
|
*/ |
152 |
|
|
public XMLPacket getXMLPacket() { |
153 |
|
|
return _packet; |
154 |
|
|
} |
155 |
ajm |
1.5 |
|
156 |
|
|
//---ATTRIBUTES--- |
157 |
tdb |
1.6 |
|
158 |
|
|
/** |
159 |
tdb |
1.12 |
* A LinkedList of tags |
160 |
tdb |
1.6 |
*/ |
161 |
tdb |
1.12 |
private LinkedList _tagList = new LinkedList(); |
162 |
tdb |
1.6 |
|
163 |
|
|
/** |
164 |
|
|
* A reference to the XMLPacket we are making |
165 |
|
|
*/ |
166 |
tdb |
1.9 |
private XMLPacket _packet; |
167 |
ajm |
1.5 |
|
168 |
|
|
/** |
169 |
|
|
* This is the friendly identifier of the |
170 |
|
|
* component this class is running in. |
171 |
|
|
* eg, a Filter may be called "filter1", |
172 |
|
|
* If this class does not have an owning |
173 |
|
|
* component, a name from the configuration |
174 |
|
|
* can be placed here. This name could also |
175 |
|
|
* be changed to null for utility classes. |
176 |
|
|
*/ |
177 |
|
|
private String _name = null; |
178 |
|
|
|
179 |
|
|
//---STATIC ATTRIBUTES--- |
180 |
|
|
|
181 |
|
|
} |