001: /**
002: * Redistribution and use of this software and associated documentation
003: * ("Software"), with or without modification, are permitted provided
004: * that the following conditions are met:
005: *
006: * 1. Redistributions of source code must retain copyright
007: * statements and notices. Redistributions must also contain a
008: * copy of this document.
009: *
010: * 2. Redistributions in binary form must reproduce the
011: * above copyright notice, this list of conditions and the
012: * following disclaimer in the documentation and/or other
013: * materials provided with the distribution.
014: *
015: * 3. The name "Exolab" must not be used to endorse or promote
016: * products derived from this Software without prior written
017: * permission of Intalio, Inc. For written permission,
018: * please contact info@exolab.org.
019: *
020: * 4. Products derived from this Software may not be called "Exolab"
021: * nor may "Exolab" appear in their names without prior written
022: * permission of Intalio, Inc. Exolab is a registered
023: * trademark of Intalio, Inc.
024: *
025: * 5. Due credit should be given to the Exolab Project
026: * (http://www.exolab.org/).
027: *
028: * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
029: * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
030: * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
031: * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
032: * INTALIO, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
033: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
034: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
035: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
036: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
037: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
038: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
039: * OF THE POSSIBILITY OF SUCH DAMAGE.
040: *
041: * Copyright 1999-2002 (C) Intalio, Inc. All Rights Reserved.
042: *
043: * $Id: FacetUnmarshaller.java 5961 2006-06-03 13:02:04Z rjoachim $
044: */package org.exolab.castor.xml.schema.reader;
045:
046: //-- imported classes and packages
047: import org.exolab.castor.xml.AttributeSet;
048: import org.exolab.castor.xml.Namespaces;
049: import org.exolab.castor.xml.XMLException;
050: import org.exolab.castor.xml.schema.Annotation;
051: import org.exolab.castor.xml.schema.Facet;
052: import org.exolab.castor.xml.schema.SchemaException;
053: import org.exolab.castor.xml.schema.SchemaNames;
054:
055: /**
056: * A class for Unmarshalling facets
057: * @author <a href="mailto:kvisco@intalio.com">Keith Visco</a>
058: * @version $Revision: 5961 $ $Date: 2003-03-03 00:05:44 -0700 (Mon, 03 Mar 2003) $
059: **/
060: public class FacetUnmarshaller extends ComponentReader {
061:
062: //--------------------/
063: //- Member Variables -/
064: //--------------------/
065:
066: /**
067: * The current ComponentReader
068: **/
069: private ComponentReader unmarshaller = null;
070:
071: /**
072: * The current branch depth
073: **/
074: private int depth = 0;
075:
076: /**
077: * The Facet we are constructing
078: **/
079: private Facet _facet = null;
080:
081: /**
082: * The element name of the Facet currently being unmarshalled
083: **/
084: private String _elementName = null;
085:
086: //----------------/
087: //- Constructors -/
088: //----------------/
089:
090: /**
091: * Creates a new FacetUnmarshaller
092: * @param name the name of the Facet
093: * @param atts the AttributeList
094: **/
095: public FacetUnmarshaller(String name, AttributeSet atts)
096: throws XMLException {
097: super ();
098:
099: _elementName = name;
100:
101: if (!isFacet(name)) {
102: String err = "'" + name
103: + "' is not a valid or supported facet.";
104: throw new IllegalArgumentException(err);
105: }
106:
107: _facet = new Facet(name, atts.getValue(SchemaNames.VALUE_ATTR));
108:
109: } //-- ArchetypeUnmarshaller
110:
111: //-----------/
112: //- Methods -/
113: //-----------/
114:
115: /**
116: * Returns the name of the element that this ComponentReader
117: * handles
118: * @return the name of the element that this ComponentReader
119: * handles
120: **/
121: public String elementName() {
122: return _elementName;
123: } //-- elementName
124:
125: /**
126: *
127: **/
128: public Facet getFacet() {
129: return _facet;
130: } //-- getArchetype
131:
132: /**
133: * Returns the Object created by this ComponentReader
134: * @return the Object created by this ComponentReader
135: **/
136: public Object getObject() {
137: return getFacet();
138: } //-- getObject
139:
140: /**
141: * Signals the start of an element with the given name.
142: *
143: * @param name the NCName of the element. It is an error
144: * if the name is a QName (ie. contains a prefix).
145: * @param namespace the namespace of the element. This may be null.
146: * Note: A null namespace is not the same as the default namespace unless
147: * the default namespace is also null.
148: * @param atts the AttributeSet containing the attributes associated
149: * with the element.
150: * @param nsDecls the namespace declarations being declared for this
151: * element. This may be null.
152: **/
153: public void startElement(String name, String namespace,
154: AttributeSet atts, Namespaces nsDecls) throws XMLException {
155: //-- Do delagation if necessary
156: if (unmarshaller != null) {
157: unmarshaller.startElement(name, namespace, atts, nsDecls);
158: ++depth;
159: return;
160: }
161:
162: if (SchemaNames.ANNOTATION.equals(name)) {
163: unmarshaller = new AnnotationUnmarshaller(atts);
164: } else
165: illegalElement(name);
166:
167: } //-- startElement
168:
169: /**
170: * Signals to end of the element with the given name.
171: *
172: * @param name the NCName of the element. It is an error
173: * if the name is a QName (ie. contains a prefix).
174: * @param namespace the namespace of the element.
175: **/
176: public void endElement(String name, String namespace)
177: throws XMLException {
178: //-- Do delagation if necessary
179: if ((unmarshaller != null) && (depth > 0)) {
180: unmarshaller.endElement(name, namespace);
181: --depth;
182: return;
183: }
184:
185: if (unmarshaller == null)
186: throw new SchemaException("missing start element: " + name);
187: else if (SchemaNames.ANNOTATION.equals(name)) {
188: Annotation annotation = (Annotation) unmarshaller
189: .getObject();
190: _facet.addAnnotation(annotation);
191: }
192:
193: } //-- endElement
194:
195: public void characters(char[] ch, int start, int length)
196: throws XMLException {
197: //-- Do delagation if necessary
198: if (unmarshaller != null) {
199: unmarshaller.characters(ch, start, length);
200: }
201: } //-- characters
202:
203: protected static boolean isFacet(String name) {
204:
205: if (Facet.ENUMERATION.equals(name))
206: return true;
207: if (Facet.LENGTH.equals(name))
208: return true;
209: if (Facet.PATTERN.equals(name))
210: return true;
211: if (Facet.MAX_EXCLUSIVE.equals(name))
212: return true;
213: if (Facet.MIN_EXCLUSIVE.equals(name))
214: return true;
215: if (Facet.MAX_INCLUSIVE.equals(name))
216: return true;
217: if (Facet.MIN_INCLUSIVE.equals(name))
218: return true;
219: if (Facet.MAX_LENGTH.equals(name))
220: return true;
221: if (Facet.MIN_LENGTH.equals(name))
222: return true;
223: if (Facet.WHITESPACE.equals(name))
224: return true;
225: if (Facet.TOTALDIGITS.equals(name))
226: return true;
227: if (Facet.FRACTIONDIGITS.equals(name))
228: return true;
229: return false;
230: } //-- isFacet
231:
232: } //-- FacetUnmarshaller
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