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Java > Open Source Codes > org > apache > fop > fo > UnknownXMLObj


1 /*
2  * $Id: UnknownXMLObj.java,v 1.2.2.5 2003/05/14 15:28:39 jeremias Exp $
3  * ============================================================================
4  * The Apache Software License, Version 1.1
5  * ============================================================================
6  *
7  * Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without modifica-
10  * tion, are permitted provided that the following conditions are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright notice,
13  * this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright notice,
16  * this list of conditions and the following disclaimer in the documentation
17  * and/or other materials provided with the distribution.
18  *
19  * 3. The end-user documentation included with the redistribution, if any, must
20  * include the following acknowledgment: "This product includes software
21  * developed by the Apache Software Foundation (http://www.apache.org/)."
22  * Alternately, this acknowledgment may appear in the software itself, if
23  * and wherever such third-party acknowledgments normally appear.
24  *
25  * 4. The names "FOP" and "Apache Software Foundation" must not be used to
26  * endorse or promote products derived from this software without prior
27  * written permission. For written permission, please contact
28  * apache@apache.org.
29  *
30  * 5. Products derived from this software may not be called "Apache", nor may
31  * "Apache" appear in their name, without prior written permission of the
32  * Apache Software Foundation.
33  *
34  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
35  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
36  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
37  * APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
38  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
39  * DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
40  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
41  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
42  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
43  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
44  * ============================================================================
45  *
46  * This software consists of voluntary contributions made by many individuals
47  * on behalf of the Apache Software Foundation and was originally created by
48  * James Tauber <jtauber@jtauber.com>. For more information on the Apache
49  * Software Foundation, please see <http://www.apache.org/>.
50  */
51 package org.apache.fop.fo;
52
53 import org.apache.fop.layout.Area;
54 import org.apache.fop.apps.FOPException;
55
56 public class UnknownXMLObj extends XMLObj {
57     String JavaDoc namespace;
58
59     /**
60      * inner class for making unknown xml objects.
61      */
62     public static class Maker extends FObj.Maker {
63         String JavaDoc space;
64         String JavaDoc tag;
65
66         Maker(String JavaDoc sp, String JavaDoc t) {
67             space = sp;
68             tag = t;
69         }
70
71         /**
72          * make an unknown xml object.
73          *
74          * @param parent the parent formatting object
75          * @param propertyList the explicit properties of this object
76          *
77          * @return the unknown xml object
78          */
79         public FObj make(FObj parent, PropertyList propertyList,
80                          String JavaDoc systemId, int line, int column)
81             throws FOPException {
82             return new UnknownXMLObj(parent, propertyList, space, tag,
83                                      systemId, line, column);
84         }
85     }
86
87     /**
88      * returns the maker for this object.
89      *
90      * @return the maker for an unknown xml object
91      */
92     public static FObj.Maker maker(String JavaDoc space, String JavaDoc tag) {
93         return new UnknownXMLObj.Maker(space, tag);
94     }
95
96     /**
97      * constructs an unknown xml object (called by Maker).
98      *
99      * @param parent the parent formatting object
100      * @param propertyList the explicit properties of this object
101      */
102     protected UnknownXMLObj(FObj parent, PropertyList propertyList,
103                             String JavaDoc namespace, String JavaDoc name,
104                             String JavaDoc systemId, int line, int column) {
105         super(parent, propertyList, name, systemId, line, column);
106         this.namespace = namespace;
107     }
108
109     public String JavaDoc getNameSpace() {
110         return this.namespace;
111     }
112
113     protected void addChild(FONode child) {
114         if(doc == null) {
115             createBasicDocument();
116         }
117         super.addChild(child);
118     }
119
120     protected void addCharacters(char data[], int start, int length) {
121         if(doc == null) {
122             createBasicDocument();
123         }
124         super.addCharacters(data, start, length);
125     }
126
127     public int layout(Area area) throws FOPException {
128         //if (!(area instanceof ForeignObjectArea)) {
129 // this is an error
130 //throw new FOPException("Foreign XML not in fo:instream-foreign-object");
131 //}
132 log.error("no handler defined for " + this.getName() + " foreign xml");
133
134         /* return status */
135         return Status.OK;
136     }
137
138     public String JavaDoc getName() {
139         if (namespace == null || namespace.length() == 0) {
140             return tagName;
141         } else {
142             return namespace + ":" + tagName;
143         }
144     }
145 }
146
147
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