Source Code Cross Referenced for dbquery.java in  » RSS-RDF » Jena-2.5.5 » jena » 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 » jena 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * (c) Copyright 2007, 2008 Hewlett-Packard Development Company, LP
003:         * All rights reserved.
004:         * [See end of file]
005:         */
006:
007:        package jena;
008:
009:        import org.apache.commons.logging.Log;
010:        import org.apache.commons.logging.LogFactory;
011:        import arq.cmd.CmdException;
012:        import arq.cmd.TerminationException;
013:        import jena.cmdline.ArgDecl;
014:        import jena.util.*;
015:
016:        import com.hp.hpl.jena.query.*;
017:        import com.hp.hpl.jena.rdf.model.Model;
018:        import com.hp.hpl.jena.rdf.model.ModelFactory;
019:        import com.hp.hpl.jena.rdf.model.RDFWriter;
020:        import com.hp.hpl.jena.sparql.resultset.ResultsFormat;
021:        import com.hp.hpl.jena.sparql.vocabulary.ResultSetGraphVocab;
022:        import com.hp.hpl.jena.util.FileManager;
023:
024:        public class dbquery extends DBcmd {
025:
026:            // TODO Rewrite to use assemblers (and merge with arq.query?)
027:            // Make DBcmd public -- actually, make an extension of CmdLineArgs that adds and handles the extra stuff.
028:            // Execute an ARQ query against an old-style Jena database
029:            static private Log log = LogFactory.getLog(dbquery.class);
030:
031:            public static final String[] usage = new String[] {
032:                    "dbquery [--spec spec] | [db_description] [--model name] --query QueryFile",
033:                    "  where db_description is",
034:                    "    --db JDBC URL --dbType type",
035:                    "    --dbUser user --dbPassword password" };
036:
037:            public static void main(String[] argv) {
038:                try {
039:                    main2(argv);
040:                } catch (TerminationException ex) {
041:                    System.exit(ex.getCode());
042:                } catch (CmdException ex) {
043:                    System.err.println(ex.getMessage());
044:                    if (ex.getCause() != null)
045:                        ex.getCause().printStackTrace(System.err);
046:                }
047:
048:            }
049:
050:            public static void main2(String[] argv) {
051:                dbquery db = new dbquery();
052:                db.setUsage(usage);
053:
054:                // add any new args
055:                db.init(argv);
056:                // do any additional test here
057:
058:                // Action!
059:                db.exec();
060:            }
061:
062:            private ArgDecl queryDecl = new ArgDecl(true, "query");
063:            private ArgDecl queryTime = new ArgDecl(false, "time");
064:            private ArgDecl repeatDecl = new ArgDecl(true, "repeat");
065:            private boolean timing = false;
066:
067:            public dbquery() {
068:                super ("dbquery", false);
069:                getCommandLine().add(queryDecl);
070:                getCommandLine().add(queryTime);
071:                getCommandLine().add(repeatDecl);
072:            }
073:
074:            //@Override
075:            protected void exec0() {
076:                if (!getCommandLine().contains(queryDecl)) {
077:                    System.err.println("No query");
078:                    return;
079:                }
080:                String queryFile = getCommandLine().getValue(queryDecl);
081:                String queryString = FileManager.get().readWholeFileAsUTF8(
082:                        queryFile);
083:                exec1(queryString);
084:            }
085:
086:            //@Override
087:            protected boolean exec1(String arg) {
088:                if (arg.startsWith("@"))
089:                    arg = FileManager.get().readWholeFileAsUTF8(
090:                            arg.substring(1));
091:
092:                boolean timing = false;
093:                if (getCommandLine().contains(queryTime))
094:                    timing = true;
095:                //            timing = ( getCommandLine().getArg(queryTime).getValue().equalsIgnoreCase("true") ||
096:                //                getCommandLine().getArg(queryTime).getValue().equalsIgnoreCase("on") ) ;
097:
098:                //      GraphRDB g = ((GraphRDB)getRDBModel().getGraph()) ;
099:                //      System.err.println("Reif: "+g.reificationBehavior()) ;
100:                //      System.err.println("OnlyReified:  "+getRDBModel().getQueryOnlyReified()) ;
101:                //      System.err.println("FullReified:  "+getRDBModel().getQueryFullReified()) ;
102:                //      System.err.println("QueryOnly:    "+getRDBModel().getQueryOnlyAsserted()) ;
103:
104:                //      super.getRDBModel().setDoFastpath(true) ;
105:                //      super.getRDBModel().setQueryOnlyReified(false) ;
106:                //      super.getRDBModel().setQueryFullReified(false) ;
107:                //      super.getRDBModel().setQueryOnlyAsserted(true) ;
108:
109:                //super.getRDBModel().setDoFastpath(true) ;
110:                //System.err.println("Fastpath: "+getRDBModel().getDoFastpath()) ;
111:
112:                long totalTime = 0;
113:                long firstTime = 0;
114:                ResultsFormat fmt = ResultsFormat.FMT_TEXT;
115:                int repeat = 1;
116:
117:                if (getCommandLine().contains(repeatDecl))
118:                    repeat = Integer.parseInt(getCommandLine().getValue(
119:                            repeatDecl));
120:
121:                if (timing)
122:                    fmt = ResultsFormat.FMT_NONE;
123:
124:                // Compile and execute once on empty model (get classes)
125:                if (timing) {
126:                    long startTime = System.currentTimeMillis();
127:                    Query query = QueryFactory.create(arg);
128:                    Model m = ModelFactory.createDefaultModel();
129:                    QueryExecution qExec = QueryExecutionFactory.create(query,
130:                            m);
131:                    doQuery(query, qExec, ResultsFormat.FMT_NONE);
132:                    long finishTime = System.currentTimeMillis();
133:                    firstTime = (finishTime - startTime);
134:                }
135:
136:                //Query query = QueryFactory.create(arg) ;
137:                // Creates model - does JDBC. 
138:                long startTimeJDBC = System.currentTimeMillis();
139:                getRDBModel();
140:                long jdbcTime = System.currentTimeMillis() - startTimeJDBC;
141:
142:                for (int i = 0; i < repeat; i++) {
143:                    long startTime = System.currentTimeMillis();
144:                    //getRDBModel().begin() ;
145:                    // fastpath => one SQL query => autocommit is enough
146:                    Query query = QueryFactory.create(arg);
147:                    QueryExecution qExec = QueryExecutionFactory.create(query,
148:                            super .getRDBModel());
149:                    doQuery(query, qExec, fmt);
150:                    qExec.close();
151:                    //getRDBModel().commit() ;
152:                    long finishTime = System.currentTimeMillis();
153:                    long time = finishTime - startTime;
154:                    totalTime += time;
155:                }
156:
157:                if (timing) {
158:                    System.out.println("Query execution time:   " + (totalTime)
159:                            / (repeat * 1000.0));
160:                    System.out.println("Setup:                  " + (firstTime)
161:                            / 1000.0);
162:                    System.out.println("JDBC setup:             " + (jdbcTime)
163:                            / 1000.0);
164:                }
165:
166:                return false;
167:            }
168:
169:            public void doQuery(Query query, QueryExecution qe,
170:                    ResultsFormat outputFormat) {
171:                if (query.isSelectType())
172:                    doSelectQuery(query, qe, outputFormat);
173:                if (query.isDescribeType())
174:                    doDescribeQuery(query, qe, outputFormat);
175:                if (query.isConstructType())
176:                    doConstructQuery(query, qe, outputFormat);
177:                if (query.isAskType())
178:                    doAskQuery(query, qe, outputFormat);
179:                qe.close();
180:            }
181:
182:            void doSelectQuery(Query query, QueryExecution qe,
183:                    ResultsFormat outputFormat) {
184:                ResultSet results = qe.execSelect();
185:
186:                // Force query to execute - until now it has merely been set up.
187:                results = ResultSetFactory.makeRewindable(results);
188:
189:                boolean done = false;
190:
191:                // The non-display forms / uses a ResultSetFormatter 
192:
193:                if (outputFormat.equals(ResultsFormat.FMT_NONE)
194:                        || outputFormat.equals(ResultsFormat.FMT_COUNT)) {
195:                    int count = ResultSetFormatter.consume(results);
196:                    if (outputFormat.equals(ResultsFormat.FMT_COUNT)) {
197:                        System.out.println("Count = " + count);
198:                    }
199:                    done = true;
200:                }
201:
202:                if (outputFormat.equals(ResultsFormat.FMT_RS_RDF)
203:                        || outputFormat.equals(ResultsFormat.FMT_RDF_N3)) {
204:                    Model m = ResultSetFormatter.toModel(results);
205:                    m.setNsPrefixes(query.getPrefixMapping());
206:                    RDFWriter rdfw = m.getWriter("TURTLE");
207:                    m.setNsPrefix("rs", ResultSetGraphVocab.getURI());
208:                    rdfw.write(m, System.out, null);
209:                    done = true;
210:                }
211:
212:                if (outputFormat.equals(ResultsFormat.FMT_RS_XML)) {
213:                    ResultSetFormatter.outputAsXML(System.out, results);
214:                    done = true;
215:                }
216:
217:                if (outputFormat.equals(ResultsFormat.FMT_TEXT)) {
218:                    ResultSetFormatter.out(System.out, results, query
219:                            .getPrefixMapping());
220:                    done = true;
221:                }
222:                if (!done)
223:                    log.warn("Unknown format request: " + outputFormat);
224:
225:                System.out.flush();
226:            }
227:
228:            void doDescribeQuery(Query query, QueryExecution qe,
229:                    ResultsFormat outputFormat) {
230:                Model r = qe.execDescribe();
231:                writeModel(query, r, outputFormat);
232:            }
233:
234:            void doConstructQuery(Query query, QueryExecution qe,
235:                    ResultsFormat outputFormat) {
236:                Model r = qe.execConstruct();
237:                writeModel(query, r, outputFormat);
238:            }
239:
240:            void writeModel(Query query, Model model, ResultsFormat outputFormat) {
241:                if (outputFormat.equals(ResultsFormat.FMT_NONE))
242:                    return;
243:
244:                if (outputFormat.equals(ResultsFormat.FMT_TEXT)) {
245:                    String qType = "";
246:                    if (query.isDescribeType())
247:                        qType = "DESCRIBE";
248:                    if (query.isConstructType())
249:                        qType = "CONSTRUCT";
250:
251:                    System.out.println("# ======== " + qType + " results ");
252:                    model.write(System.out, "N3", null); // Base is meaningless
253:                    System.out.println("# ======== ");
254:                    return;
255:                }
256:
257:                if (outputFormat.equals(ResultsFormat.FMT_RDF_XML)) {
258:                    model.write(System.out, "RDF/XML-ABBREV", null);
259:                    return;
260:                }
261:
262:                if (outputFormat.equals(ResultsFormat.FMT_RDF_N3)) {
263:                    model.write(System.out, "N3", null);
264:                    return;
265:                }
266:
267:                if (outputFormat.equals(ResultsFormat.FMT_RDF_NT)) {
268:                    model.write(System.out, "N_TRIPLES", null);
269:                    return;
270:                }
271:
272:                System.err.println("Unknown format: "
273:                        + outputFormat.getSymbol());
274:            }
275:
276:            void doAskQuery(Query query, QueryExecution qe,
277:                    ResultsFormat outputFormat) {
278:                boolean b = qe.execAsk();
279:
280:                if (outputFormat.equals(ResultsFormat.FMT_RS_XML)) {
281:                    ResultSetFormatter.outputAsXML(System.out, b);
282:                    return;
283:                }
284:
285:                if (outputFormat.equals(ResultsFormat.FMT_RDF_N3)
286:                        || outputFormat.equals(ResultsFormat.FMT_RDF_TTL)) {
287:                    ResultSetFormatter.outputAsRDF(System.out, "TURTLE", b);
288:                    System.out.flush();
289:                    return;
290:                }
291:
292:                if (outputFormat.equals(ResultsFormat.FMT_TEXT)) {
293:                    //ResultSetFormatter.out(System.out, b) ;
294:                    System.out.println("Ask => " + (b ? "Yes" : "No"));
295:                    return;
296:                }
297:
298:                System.err.println("Unknown format: "
299:                        + outputFormat.getSymbol());
300:            }
301:        }
302:
303:        /*
304:         * (c) Copyright 2007, 2008 Hewlett-Packard Development Company, LP
305:         * All rights reserved.
306:         *
307:         * Redistribution and use in source and binary forms, with or without
308:         * modification, are permitted provided that the following conditions
309:         * are met:
310:         * 1. Redistributions of source code must retain the above copyright
311:         *    notice, this list of conditions and the following disclaimer.
312:         * 2. Redistributions in binary form must reproduce the above copyright
313:         *    notice, this list of conditions and the following disclaimer in the
314:         *    documentation and/or other materials provided with the distribution.
315:         * 3. The name of the author may not be used to endorse or promote products
316:         *    derived from this software without specific prior written permission.
317:         *
318:         * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
319:         * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
320:         * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
321:         * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
322:         * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
323:         * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
324:         * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
325:         * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
326:         * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
327:         * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
328:         */
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