Source Code Cross Referenced for AttributeLexer.java in  » RSS-RDF » Jena-2.5.5 » com » hp » hpl » jena » rdf » arp » impl » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » RSS RDF » Jena 2.5.5 » com.hp.hpl.jena.rdf.arp.impl 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * (c) Copyright 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
003:         * [See end of file]
004:         */
005:
006:        package com.hp.hpl.jena.rdf.arp.impl;
007:
008:        import java.util.BitSet;
009:
010:        import org.xml.sax.Attributes;
011:        import org.xml.sax.SAXParseException;
012:
013:        import com.hp.hpl.jena.rdf.arp.ARPErrorNumbers;
014:        import com.hp.hpl.jena.rdf.arp.states.Frame;
015:
016:        public class AttributeLexer extends QNameLexer implements 
017:                ARPErrorNumbers {
018:
019:            public AttributeLexer(Frame f, int which, int bad) {
020:                super (f, which, bad);
021:            }
022:
023:            String lang;
024:
025:            String base;
026:
027:            public String about;
028:
029:            public String datatype;
030:
031:            public String resource;
032:
033:            public String nodeID;
034:
035:            public String id;
036:
037:            public String type;
038:
039:            public String parseType;
040:
041:            public BitSet done;
042:
043:            public int count;
044:
045:            int index;
046:
047:            Attributes att;
048:
049:            AbsXMLContext xml;
050:
051:            public int processSpecials(Taint taintMe, Attributes a)
052:                    throws SAXParseException {
053:                att = a;
054:                int sz = a.getLength();
055:                done = new BitSet(sz);
056:                count = 0;
057:                for (index = 0; index < sz; index++) {
058:                    boolean matched = true;
059:                    switch (lookup(taintMe)) {
060:                    case A_XMLBASE:
061:                        base = value();
062:                        frame
063:                                .warning(null, IGN_XMLBASE_USED,
064:                                        "Use of attribute xml:base is not envisaged in RDF Model&Syntax.");
065:                        break;
066:                    case A_DEPRECATED:
067:                    case A_BAGID:
068:                    case E_LI:
069:                    case E_RDF:
070:                    case E_DESCRIPTION:
071:                        break;
072:
073:                    case A_XMLLANG:
074:                        lang = value();
075:
076:                        break;
077:                    case A_XML_OTHER:
078:                    case A_XMLNS:
079:                        break;
080:                    case A_ID:
081:                        id = value(taintMe, id);
082:                        //                frame.checkIdSymbol(id);
083:                        break;
084:                    case A_NODEID:
085:                        nodeID = value(taintMe, nodeID);
086:                        break;
087:                    case A_ABOUT:
088:                        about = value(taintMe, about);
089:                        break;
090:                    case A_RESOURCE:
091:                        resource = value(taintMe, resource);
092:                        break;
093:                    case A_DATATYPE:
094:                        datatype = value(taintMe, datatype);
095:                        break;
096:                    case A_TYPE:
097:                        type = value(taintMe, type);
098:                        break;
099:                    case A_PARSETYPE:
100:                        parseType = value(taintMe, parseType);
101:                        break;
102:                    case 0:
103:                        if ((select & A_XML_OTHER) == A_XML_OTHER) {
104:                            String qn = getQName();
105:                            if ((qn.length() >= 3 && qn.substring(0, 3)
106:                                    .toLowerCase().equals("xml"))
107:                                    || xmlns.equals(getUri())) {
108:                                // Some tools, e.g. DOM, won't let us switch off
109:                                // namespaces. Hence, they fall through to here.
110:                                if (!xmlnsns.equals(getUri()))
111:                                    frame
112:                                            .warning(
113:                                                    null,
114:                                                    WARN_UNKNOWN_XML_ATTRIBUTE,
115:                                                    "XML attribute: "
116:                                                            + getQName()
117:                                                            + " is not known and is being discarded.");
118:                                break;
119:                            }
120:                        }
121:                        matched = false;
122:                        break;
123:                    default:
124:                        throw new IllegalStateException("impossible");
125:                    }
126:                    if (matched) {
127:                        done.set(index);
128:                        count++;
129:                    }
130:                }
131:                xml = computeXml(frame.getXMLContext());
132:                return count;
133:            }
134:
135:            public AbsXMLContext xml(AbsXMLContext in) throws SAXParseException {
136:                if (xml == null)
137:                    xml = computeXml(in);
138:                return xml;
139:            }
140:
141:            private AbsXMLContext computeXml(AbsXMLContext in)
142:                    throws SAXParseException {
143:                if (base != null) {
144:                    in = in.withBase(frame.arp, base);
145:                }
146:                if (lang != null)
147:                    in = in.withLang(frame.arp, lang);
148:                return in;
149:            }
150:
151:            boolean isInRdfns(Taint taintMe) throws SAXParseException {
152:                String uri = getUri();
153:                if (rdfns.equals(uri))
154:                    return true;
155:                if (uri.equals("")) {
156:                    frame.warning(taintMe, WARN_UNQUALIFIED_ATTRIBUTE,
157:                            "unqualified use of rdf:" + getQName()
158:                                    + " is deprecated.");
159:                    return true;
160:                }
161:                return false;
162:            }
163:
164:            void error(Taint taintMe, int r) throws SAXParseException {
165:                //         TODO: not for 2.3. specialize ERR_SYNTAX_ERROR ?
166:                int e = ERR_SYNTAX_ERROR;
167:                switch (r) {
168:                case E_LI:
169:                case E_DESCRIPTION:
170:                case E_RDF:
171:                case A_DEPRECATED:
172:                case A_BAGID:
173:                    e = ERR_BAD_RDF_ATTRIBUTE;
174:                    break;
175:
176:                }
177:                frame.warning(taintMe, e, getQName()
178:                        + " not allowed as attribute"
179:                        + (e == ERR_BAD_RDF_ATTRIBUTE ? "." : " here."));
180:
181:            }
182:
183:            void deprecatedAttribute(Taint me, int r) throws SAXParseException {
184:                frame.warning(me, ERR_BAD_RDF_ATTRIBUTE, getQName()
185:                        + " has been deprecated.");
186:            }
187:
188:            String getLocalName() {
189:                return att.getLocalName(index);
190:            }
191:
192:            String getUri() {
193:                return att.getURI(index);
194:            }
195:
196:            private String value() {
197:                return att.getValue(index);
198:            }
199:
200:            /**
201:                Answer the xml:base value, or null if there wasn't one.
202:                [Added by kers, in search of xml:base processing]
203:             */
204:            public String getXMLBase() {
205:                return base;
206:            }
207:
208:            private String value(Taint taintMe, String prev)
209:                    throws SAXParseException {
210:                if (prev != null) {
211:                    frame
212:                            .warning(
213:                                    taintMe,
214:                                    ERR_SYNTAX_ERROR,
215:                                    "Cannot use "
216:                                            + getQName()
217:                                            + " in both qualified and unqualifed form on same element");
218:                }
219:                return att.getValue(index);
220:            }
221:
222:            String getQName() {
223:                return att.getQName(index);
224:            }
225:
226:            public boolean done(int i) {
227:                return done.get(i);
228:            }
229:
230:            void bagIDAttribute(Taint taintMe, int rslt)
231:                    throws SAXParseException {
232:                deprecatedAttribute(null, rslt);
233:            }
234:        }
235:
236:        /*
237:         * (c) Copyright 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP All rights
238:         * reserved.
239:         * 
240:         * Redistribution and use in source and binary forms, with or without
241:         * modification, are permitted provided that the following conditions are met:
242:         * 1. Redistributions of source code must retain the above copyright notice,
243:         * this list of conditions and the following disclaimer. 2. Redistributions in
244:         * binary form must reproduce the above copyright notice, this list of
245:         * conditions and the following disclaimer in the documentation and/or other
246:         * materials provided with the distribution. 3. The name of the author may not
247:         * be used to endorse or promote products derived from this software without
248:         * specific prior written permission.
249:         * 
250:         * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
251:         * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
252:         * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
253:         * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
254:         * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
255:         * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
256:         * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
257:         * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
258:         * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
259:         * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
260:         */
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