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: ComplexContentUnmarshaller.java 5951 2006-05-30 22:18:48Z bsnyder $
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.ComplexType;
052: import org.exolab.castor.xml.schema.ContentType;
053: import org.exolab.castor.xml.schema.Resolver;
054: import org.exolab.castor.xml.schema.SchemaNames;
055:
056: /**
057: * A class for Unmarshalling simpleContent
058: * @author <a href="mailto:kvisco@intalio.com">Keith Visco</a>
059: * @version $Revision: 5951 $ $Date: 2006-04-14 04:14:43 -0600 (Fri, 14 Apr 2006) $
060: **/
061: public class ComplexContentUnmarshaller extends ComponentReader {
062:
063: //--------------------/
064: //- Member Variables -/
065: //--------------------/
066:
067: /**
068: * The current ComponentReader
069: **/
070: private ComponentReader unmarshaller;
071:
072: /**
073: * The current branch depth
074: **/
075: private int depth = 0;
076:
077: /**
078: * The Attribute reference for the Attribute we are constructing
079: **/
080: private ComplexType _complexType = null;
081:
082: private boolean foundAnnotation = false;
083: private boolean foundExtension = false;
084: private boolean foundRestriction = false;
085:
086: //----------------/
087: //- Constructors -/
088: //----------------/
089:
090: /**
091: * Creates a new ComplexContentUnmarshaller
092: * @param complexType the complexType we are unmarshalling
093: * @param atts the AttributeList
094: * @param resolver the resolver being used for reference resolving
095: **/
096: public ComplexContentUnmarshaller(ComplexType complexType,
097: AttributeSet atts, Resolver resolver) throws XMLException {
098:
099: _complexType = complexType;
100:
101: //-- read contentType
102: String content = atts.getValue(SchemaNames.MIXED);
103:
104: if (content != null) {
105: if (content.equals("true"))
106: _complexType.setContentType(ContentType
107: .valueOf("mixed"));
108: if (content.equals("false"))
109: _complexType.setContentType(ContentType
110: .valueOf("elementOnly"));
111: }
112:
113: } //-- ComplexContentUnmarshaller
114:
115: //-----------/
116: //- Methods -/
117: //-----------/
118:
119: /**
120: * Returns the name of the element that this ComponentReader
121: * handles
122: * @return the name of the element that this ComponentReader
123: * handles
124: **/
125: public String elementName() {
126: return SchemaNames.COMPLEX_CONTENT;
127: } //-- elementName
128:
129: /**
130: * Returns the Object created by this ComponentReader
131: * @return the Object created by this ComponentReader
132: **/
133: public Object getObject() {
134: return null;
135: } //-- getObject
136:
137: /**
138: * Signals the start of an element with the given name.
139: *
140: * @param name the NCName of the element. It is an error
141: * if the name is a QName (ie. contains a prefix).
142: * @param namespace the namespace of the element. This may be null.
143: * Note: A null namespace is not the same as the default namespace unless
144: * the default namespace is also null.
145: * @param atts the AttributeSet containing the attributes associated
146: * with the element.
147: * @param nsDecls the namespace declarations being declared for this
148: * element. This may be null.
149: **/
150: public void startElement(String name, String namespace,
151: AttributeSet atts, Namespaces nsDecls) throws XMLException {
152: //-- Do delagation if necessary
153: if (unmarshaller != null) {
154: unmarshaller.startElement(name, namespace, atts, nsDecls);
155: ++depth;
156: return;
157: }
158:
159: //-- extension
160: if (SchemaNames.EXTENSION.equals(name)) {
161:
162: if (foundExtension)
163: error("Only (1) 'extension' element may appear as a child "
164: + "of 'complexContent' elements.");
165:
166: if (foundRestriction)
167: error("Both 'extension' and 'restriction' elements may not "
168: + "appear as children of the same complexContent "
169: + "definition.");
170:
171: foundExtension = true;
172:
173: ExtensionUnmarshaller extension = new ExtensionUnmarshaller(
174: _complexType, atts, getResolver());
175: unmarshaller = extension;
176: }
177: //-- restriction
178: else if (SchemaNames.RESTRICTION.equals(name)) {
179:
180: if (foundRestriction)
181: error("Only (1) 'restriction' element may appear as a child "
182: + "of 'complexContent' elements.");
183:
184: if (foundExtension)
185: error("Both 'extension' and 'restriction' elements may not "
186: + "appear as children of the same complexContent "
187: + "definition.");
188:
189: foundRestriction = true;
190: unmarshaller = new ComplexContentRestrictionUnmarshaller(
191: _complexType, atts, getResolver());
192: }
193: //-- annotation
194: else if (name.equals(SchemaNames.ANNOTATION)) {
195: if (foundAnnotation)
196: error("Only (1) 'annotation' element may appear as a child "
197: + "of 'complexContent' elements.");
198:
199: if (foundRestriction || foundExtension)
200: error("An 'annotation' may only appear as the first child "
201: + "of a 'complexContent' element.");
202:
203: foundAnnotation = true;
204: unmarshaller = new AnnotationUnmarshaller(atts);
205: } else
206: illegalElement(name);
207:
208: unmarshaller.setDocumentLocator(getDocumentLocator());
209: } //-- startElement
210:
211: /**
212: * Signals to end of the element with the given name.
213: *
214: * @param name the NCName of the element. It is an error
215: * if the name is a QName (ie. contains a prefix).
216: * @param namespace the namespace of the element.
217: **/
218: public void endElement(String name, String namespace)
219: throws XMLException {
220:
221: //-- Do delagation if necessary
222: if ((unmarshaller != null) && (depth > 0)) {
223: unmarshaller.endElement(name, namespace);
224: --depth;
225: return;
226: }
227:
228: //-- have unmarshaller perform any necessary clean up
229: unmarshaller.finish();
230:
231: //-- annotation
232: if (SchemaNames.ANNOTATION.equals(name)) {
233: Annotation ann = ((AnnotationUnmarshaller) unmarshaller)
234: .getAnnotation();
235: _complexType.addAnnotation(ann);
236: }
237:
238: unmarshaller = null;
239: } //-- endElement
240:
241: public void characters(char[] ch, int start, int length)
242: throws XMLException {
243: //-- Do delagation if necessary
244: if (unmarshaller != null) {
245: unmarshaller.characters(ch, start, length);
246: }
247: } //-- characters
248:
249: } //-- ComplexContentUnmarshaller
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