Source Code Cross Referenced for LOBTest.java in  » Database-DBMS » db-derby-10.2 » org » apache » derbyTesting » functionTests » tests » jdbcapi » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » db derby 10.2 » org.apache.derbyTesting.functionTests.tests.jdbcapi 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:
003:           Derby - Class org.apache.derbyTesting.functionTests.tests.jdbcapi.LOBTest
004:
005:           Licensed to the Apache Software Foundation (ASF) under one or more
006:           contributor license agreements.  See the NOTICE file distributed with
007:           this work for additional information regarding copyright ownership.
008:           The ASF licenses this file to You under the Apache License, Version 2.0
009:           (the "License"); you may not use this file except in compliance with
010:           the License.  You may obtain a copy of the License at
011:
012:              http://www.apache.org/licenses/LICENSE-2.0
013:
014:           Unless required by applicable law or agreed to in writing, software
015:           distributed under the License is distributed on an "AS IS" BASIS,
016:           WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
017:           See the License for the specific language governing permissions and
018:           limitations under the License.
019:
020:         */
021:
022:        package org.apache.derbyTesting.functionTests.tests.jdbcapi;
023:
024:        import java.sql.DriverManager;
025:        import java.sql.Connection;
026:        import java.sql.Statement;
027:        import java.sql.ResultSet;
028:        import java.sql.ResultSetMetaData;
029:        import java.sql.SQLException;
030:        import java.sql.Array;
031:        import java.io.InputStream;
032:        import java.math.BigDecimal;
033:        import java.sql.Blob;
034:        import java.sql.Clob;
035:        import java.io.Reader;
036:        import java.sql.Date;
037:        import java.sql.Time;
038:        import java.sql.Timestamp;
039:        import java.sql.Ref;
040:        import java.net.URL;
041:        import java.sql.PreparedStatement;
042:        import org.apache.derby.tools.ij;
043:        import org.apache.derbyTesting.functionTests.util.TestUtil;
044:        import org.apache.derby.tools.JDBCDisplayUtil;
045:
046:        /**
047:         * @author Jonas S Karlsson
048:         */
049:
050:        public class LOBTest {
051:            /* the default framework is embedded*/
052:            public static final String driver = "org.apache.derby.jdbc.EmbeddedDriver";
053:            public static final String protocol = "jdbc:derby:";
054:
055:            public static Connection connectAndCreate(String dbname)
056:                    throws Exception {
057:                // connect and create db
058:                Class.forName(driver).newInstance(); // load driver
059:                Connection conn = DriverManager.getConnection(protocol + dbname
060:                        + ";create=true");
061:
062:                conn.setAutoCommit(false);
063:                return conn;
064:            }
065:
066:            public static void disconnect(Connection conn) throws Exception {
067:                conn.commit();
068:                conn.close();
069:            }
070:
071:            public static void printSQLError(SQLException e) {
072:                while (e != null) {
073:                    System.out.print("\t");
074:                    JDBCDisplayUtil.ShowSQLException(System.out, e);
075:                    e = e.getNextException();
076:                }
077:            }
078:
079:            //////////////////////////////////////////////////////////////////////
080:            public static void largeTest(String[] args) throws Exception {
081:                System.out.println("connecting");
082:                Connection conn = connectAndCreate("LOBdb");
083:                Statement s = conn.createStatement();
084:
085:                try {
086:                    System.out.println("dropping");
087:                    s.executeUpdate("DROP TABLE atable");
088:                } catch (Exception e) {
089:                }
090:
091:                System.out.println("creating");
092:                s
093:                        .executeUpdate("CREATE TABLE atable (a INT, b LONG VARCHAR FOR BIT DATA)");
094:                conn.commit();
095:                java.io.File file = new java.io.File("short.utf");
096:                int fileLength = (int) file.length();
097:
098:                // first, create an input stream
099:                java.io.InputStream fin = new java.io.FileInputStream(file);
100:                PreparedStatement ps = conn
101:                        .prepareStatement("INSERT INTO atable VALUES (?, ?)");
102:                ps.setInt(1, 1);
103:
104:                // set the value of the input parameter to the input stream
105:                //              ps.setBinaryStream(2, fin, fileLength);
106:                ps.setBinaryStream(2, fin, -1);
107:                System.out.println("inserting");
108:                ps.execute();
109:                conn.commit();
110:
111:                // reading the columns
112:                System.out.println("reading");
113:                ResultSet rs = s
114:                        .executeQuery("SELECT b, octet_length(b) FROM atable WHERE a = 1");
115:                while (rs.next()) {
116:                    java.sql.Clob aclob = rs.getClob(1);
117:                    java.io.InputStream ip = rs.getAsciiStream(1);
118:                    System.out.println("octet_length = " + rs.getInt(2));
119:                }
120:
121:                System.out.println("disconnecting");
122:                disconnect(conn);
123:            }
124:
125:            public static void typeTest(String[] args) throws Exception {
126:
127:                // use the ij utility to read the property file and
128:                // make the initial connection.
129:                ij.getPropertyArg(args);
130:                Connection conn = ij.startJBMS();
131:
132:                // old bit datatype, converted later to char () for bit data
133:                new LOBTester(conn, "bit", "(8 )").test();
134:                new LOBTester(conn, "bit", "(8 )").test();
135:
136:                new LOBTester(conn, "blob", "(2 M)").test();
137:                new LOBTester(conn, "blob", "(2 K)").test();
138:                new LOBTester(conn, "blob", "(64  )").test();
139:
140:                new LOBTester(conn, "clob", "(2 K)").test();
141:                new LOBTester(conn, "clob", "(64  )").test();
142:
143:                new LOBTester(conn, "blob", "(2 M)").testBlobInsert();
144:                disconnect(conn);
145:            }
146:
147:            public static void main(String[] args) {
148:                try {
149:                    //			if (args.length > 0) {
150:                    //				largeTest(args);
151:                    //			} else {
152:                    typeTest(args);
153:                    //			}
154:                } catch (Throwable e) {
155:                    LOBTest.printException(e);
156:                }
157:            }
158:
159:            public static void printException(Throwable e) {
160:                //System.out.println("\t Exception thrown:");
161:                if (e instanceof  SQLException)
162:                    printSQLError((SQLException) e);
163:                else
164:                    e.printStackTrace();
165:            }
166:        }
167:
168:        class LOBTester {
169:            String typeName;
170:            String typeSpec;
171:            String table;
172:            String[] colNames;
173:            String[] colTypes;
174:            int columns;
175:            String[] colData;
176:
177:            Connection conn;
178:            Statement st;
179:
180:            String[] typeNames = { "int", "char(10)", "varchar(80)",
181:                    "long varchar", "char(10) for bit data",
182:                    "long varchar for bit data", "blob(80)" };
183:
184:            static int BIT_OFFSET = 4;
185:            static int LONG_VARBINARY_OFFSET = 5;
186:            static int BLOB_OFFSET = 6;
187:            static int TYPE_COL_OFFSET = 7;
188:
189:            public LOBTester(Connection c, String typeName, String typeSpec)
190:                    throws SQLException {
191:
192:                this .conn = c;
193:                this .typeName = typeName;
194:                this .typeSpec = typeSpec;
195:                this .table = typeName + "_table";
196:                this .st = this .conn.createStatement();
197:
198:                columns = typeNames.length + 1;
199:                this .colNames = new String[columns];
200:                this .colTypes = new String[columns];
201:                for (int i = 0; i < columns - 1; i++) {
202:                    String colName = "col_" + i;
203:                    colNames[i] = colName;
204:                    colTypes[i] = typeNames[i];
205:                }
206:                colNames[columns - 1] = "typecol";
207:                String tmpTypeNameSpec;
208:                if (typeName.equals("bit"))
209:                    tmpTypeNameSpec = "char" + " " + typeSpec + " for bit data";
210:                else
211:                    tmpTypeNameSpec = typeName + " " + typeSpec;
212:                colTypes[columns - 1] = tmpTypeNameSpec;
213:                colData = new String[] {
214:                        "100",
215:                        "'101'",
216:                        "'102'",
217:                        "'103'",
218:                        TestUtil.stringToHexLiteral("104"),
219:                        TestUtil.stringToHexLiteral("105"),
220:                        "CAST (" + TestUtil.stringToHexLiteral("106") + " AS "
221:                                + colTypes[BLOB_OFFSET] + ")",
222:                        "CAST (" + TestUtil.stringToHexLiteral("107") + " AS "
223:                                + tmpTypeNameSpec + ")" };
224:
225:            }
226:
227:            public static void printResultSet(ResultSet rs) throws SQLException {
228:                if (rs == null)
229:                    return;
230:                ResultSetMetaData md = rs.getMetaData();
231:                int cols = md.getColumnCount();
232:
233:                boolean hasNext = true;
234:                // according to javadoc, rs already points to first
235:                // row, but it won't work if we don't call next()!
236:
237:                // print some metadata
238:                for (int col = 1; col <= cols; col++) {
239:                    System.out.println("\t---- " + col);
240:                    System.out
241:                            .println("\tColumn    : " + md.getColumnName(col));
242:                    System.out
243:                            .println("\tType      : " + md.getColumnType(col));
244:                    System.out.println("\tTypeName  : "
245:                            + md.getColumnTypeName(col));
246:                    System.out.println("\tClassName : "
247:                            + md.getColumnClassName(col));
248:                    System.out.println("\tLabel     : "
249:                            + md.getColumnLabel(col));
250:                    System.out.println("\tDisplaySz : "
251:                            + md.getColumnDisplaySize(col));
252:                    System.out.println("\tPrecision : " + md.getPrecision(col));
253:                    System.out.println("\tScale     : " + md.getScale(col));
254:                    System.out.println("\tisCurrency: " + md.isCurrency(col));
255:                    System.out.println("\tisCaseSens: "
256:                            + md.isCaseSensitive(col));
257:                    System.out.println("\tisDefWrite: "
258:                            + md.isDefinitelyWritable(col));
259:                    System.out.println("\tisWrite   : " + md.isWritable(col));
260:                    System.out.println("\tisSearchab: " + md.isSearchable(col));
261:                    //			System.out.println("\tSchemaName: "+md.getSchemaName(col));
262:                    System.out.print("\n");
263:                }
264:
265:                // print actual data
266:                while (rs.next()) { // for each row
267:                    for (int col = 1; col <= cols; col++) {
268:                        Object c = rs.getObject(col);
269:                        if (c == null)
270:                            System.out.println("\tOUT = NULL");
271:                        else {
272:                            // fixup if it contains classname (remove "random" part after @)
273:                            String v = c.toString();
274:                            if (v.indexOf('@') != -1) {
275:                                v = v.substring(0, v.indexOf('@') + 1);
276:                                System.out.println("\tOUT = Object : "
277:                                        + prettyType(c));
278:                            } else
279:                                System.out.println("\tOUT = '" + v + "' : "
280:                                        + c.getClass().getName());
281:                        }
282:                    }
283:                }
284:            }
285:
286:            public ResultSet X(String sql) throws SQLException {
287:                try {
288:                    System.out.println("\n" + sql);
289:                    // cercumwait stupid executeQuery which can't take non-selects...
290:                    boolean result = ((sql.charAt(0) == 'S') || (sql.charAt(0) == 's')); // detect "select" which returns result..
291:                    if (!result) {
292:                        st.execute(sql);
293:                    } else {
294:                        return st.executeQuery(sql);
295:                    }
296:                } catch (Throwable e) {
297:                    LOBTest.printException(e);
298:                }
299:                return null;
300:            }
301:
302:            public void Xprint(String sql) {
303:                try {
304:                    ResultSet rs = X(sql);
305:                    printResultSet(rs);
306:                } catch (Throwable e) {
307:                    LOBTest.printException(e);
308:                }
309:            }
310:
311:            static String[] getterName = { "getObject", "getArray",
312:                    "getAsciiStream", // 2
313:                    "getBigDecimal", "getBinaryStream", "getBlob", // 5
314:                    "getBoolean", "getByte", "getBytes", // 8
315:                    "getCharacterStream", "getClob", "getDate", // 11
316:                    "getDouble", "getFloat", "getInt", "getLong", // 15
317:                    "getRef", "getShort", "getString", "getTime", // 19
318:                    "getTimeStamp", "getURL" // 21
319:            };
320:
321:            // getter takes a RESULTSET and uses GETTER on COLumn
322:            // getters numbered 0..N-1, for N-1 null is returned
323:            // otherwise descriptive string is returned
324:            // if the getter throws exception the string says so
325:            public static String getter(ResultSet rs, int getter, int col) {
326:                Object o = "-NO VALUE-";
327:                String s = "";
328:                try {
329:                    if (getter < getterName.length) { // avoid array exception
330:                        s = getterName[getter];
331:                        for (int i = s.length(); i < 20; i++)
332:                            s += ' ';
333:                        s += " ->";
334:                    }
335:
336:                    switch (getter) {
337:                    case 0: {
338:                        o = rs.getObject(col);
339:                        break;
340:                    }
341:                    case 1: {
342:                        Array v = rs.getArray(col);
343:                        o = v;
344:                        break;
345:                    }
346:                    case 2: {
347:                        InputStream v = rs.getAsciiStream(col);
348:                        o = v;
349:                        break;
350:                    }
351:                    case 3: {
352:                        BigDecimal v = rs.getBigDecimal(col);
353:                        o = v;
354:                        break;
355:                    }
356:                    case 4: {
357:                        InputStream v = rs.getBinaryStream(col);
358:                        o = v;
359:                        break;
360:                    }
361:                    case 5: {
362:                        Blob v = rs.getBlob(col);
363:                        o = v;
364:                        break;
365:                    }
366:                    case 6: {
367:                        boolean v = rs.getBoolean(col);
368:                        o = new Boolean(v);
369:                        break;
370:                    }
371:                    case 7: {
372:                        byte v = rs.getByte(col);
373:                        o = new Byte(v);
374:                        break;
375:                    }
376:                    case 8: {
377:                        byte[] v = rs.getBytes(col);
378:                        o = v;
379:                        break;
380:                    }
381:                    case 9: {
382:                        Reader v = rs.getCharacterStream(col);
383:                        o = v;
384:                        break;
385:                    }
386:                    case 10: {
387:                        Clob v = rs.getClob(col);
388:                        o = v;
389:                        break;
390:                    }
391:                    case 11: {
392:                        Date v = rs.getDate(col);
393:                        o = v;
394:                        break;
395:                    }
396:                    case 12: {
397:                        double v = rs.getDouble(col);
398:                        o = new Double(v);
399:                        break;
400:                    }
401:                    case 13: {
402:                        float v = rs.getFloat(col);
403:                        o = new Float(v);
404:                        break;
405:                    }
406:                    case 14: {
407:                        int v = rs.getInt(col);
408:                        o = new Integer(v);
409:                        break;
410:                    }
411:                    case 15: {
412:                        long v = rs.getLong(col);
413:                        o = new Long(v);
414:                        break;
415:                    }
416:                    case 16: {
417:                        Ref v = rs.getRef(col);
418:                        o = v;
419:                        break;
420:                    }
421:                    case 17: {
422:                        short v = rs.getShort(col);
423:                        o = new Short(v);
424:                        break;
425:                    }
426:                    case 18: {
427:                        String v = rs.getString(col);
428:                        o = v;
429:                        break;
430:                    }
431:                    case 19: {
432:                        Time v = rs.getTime(col);
433:                        o = v;
434:                        break;
435:                    }
436:                    case 20: {
437:                        Timestamp v = rs.getTimestamp(col);
438:                        o = v;
439:                        break;
440:                    }
441:                        //				case 21:{URL v=rs.getURL(col);o=v;break;}
442:                    default:
443:                        return null;
444:                    }
445:                    // fixup if it contains classname (remove "random" part after @)
446:                    String v = o.toString();
447:                    if (v.indexOf('@') != -1) { // non standard java object.
448:                        s += "Object'   \t: " + prettyType(o);
449:                    } else {
450:                        // default stringifier...
451:                        s += "'" + v + "'    \t: " + o.getClass().getName();
452:                    }
453:                } catch (Throwable e) {
454:                    s += "\t\tEXCEPTION (" + e.getMessage() + ")";
455:                }
456:                return s;
457:            }
458:
459:            static public String prettyType(Object o) {
460:                if (o instanceof  java.sql.Blob)
461:                    return "java.sql.Blob";
462:                if (o instanceof  java.sql.Clob)
463:                    return "java.sql.Clob";
464:                if (o instanceof  java.io.InputStream)
465:                    return "java.io.InputStream";
466:                if (o instanceof  java.io.Reader)
467:                    return "java.io.Reader";
468:                if (o instanceof  byte[])
469:                    return "byte[]";
470:                return "Unknown type - " + o.getClass().getName();
471:            }
472:
473:            public void testGetters() throws SQLException {
474:                for (int i = 0; i < columns; i++) {
475:                    System.out.println("\n\n=== Columntype " + colTypes[i]);
476:
477:                    String s = "select " + colNames[i] + " as " + colNames[i]
478:                            + "_1, " + colNames[i] + " as " + colNames[i]
479:                            + "_2, " + colNames[i] + " as " + colNames[i]
480:                            + "_3, " + colNames[i] + " as " + colNames[i]
481:                            + "_4, " + colNames[i] + " as " + colNames[i]
482:                            + "_5, " + colNames[i] + " as " + colNames[i]
483:                            + "_6, " + colNames[i] + " as " + colNames[i]
484:                            + "_7, " + colNames[i] + " as " + colNames[i]
485:                            + "_8, " + colNames[i] + " as " + colNames[i]
486:                            + "_9, " + colNames[i] + " as " + colNames[i]
487:                            + "_10, " + colNames[i] + " as " + colNames[i]
488:                            + "_11, " + colNames[i] + " as " + colNames[i]
489:                            + "_12, " + colNames[i] + " as " + colNames[i]
490:                            + "_13, " + colNames[i] + " as " + colNames[i]
491:                            + "_14, " + colNames[i] + " as " + colNames[i]
492:                            + "_15, " + colNames[i] + " as " + colNames[i]
493:                            + "_16, " + colNames[i] + " as " + colNames[i]
494:                            + "_17, " + colNames[i] + " as " + colNames[i]
495:                            + "_18, " + colNames[i] + " as " + colNames[i]
496:                            + "_19, " + colNames[i] + " as " + colNames[i]
497:                            + "_20, " + colNames[i] + " as " + colNames[i]
498:                            + "_21 " + "from " + table;
499:
500:                    ResultSet rs = X(s);
501:                    rs.next(); // goto first
502:                    int getno = 0;
503:                    String r;
504:                    while (null != (r = getter(rs, getno, getno + 1))) {
505:                        System.out.println("\t" + i + " " + r);
506:                        getno++;
507:                    }
508:                }
509:            }
510:
511:            public void testMetaData() {
512:                System.out.println("\n\n---< METADATA TESTS\n");
513:                // plain select
514:                for (int i = 0; i < columns; i++) {
515:                    String s = "select " + colNames[i] + " from " + table;
516:                    Xprint(s);
517:                }
518:            }
519:
520:            public void testCastTo() {
521:                System.out
522:                        .println("\n\n---< type CAST TO types: METADATA TESTS\n");
523:                // CAST ( column TO types )
524:                for (int i = 0; i < columns; i++) {
525:                    String s;
526:                    if (colTypes[i].startsWith("bit"))
527:                        s = "select cast( typecol as char (8) for bit data) from "
528:                                + table;
529:                    else
530:                        s = "select cast( typecol as " + colTypes[i]
531:                                + " ) from " + table;
532:                    Xprint(s);
533:                }
534:            }
535:
536:            public void testCastFrom() {
537:                System.out
538:                        .println("\n\n---< columns CAST TO type: METADATA TESTS\n");
539:                // CAST ( coltypes TO type )
540:                for (int i = 0; i < columns; i++) {
541:                    String s;
542:                    if (typeName.startsWith("bit")) {
543:                        s = "select cast( " + colNames[i]
544:                                + " as char (8) for bit data ) from " + table;
545:                    } else
546:                        s = "select cast( " + colNames[i] + " as " + typeName
547:                                + typeSpec + " ) from " + table;
548:                    Xprint(s);
549:                }
550:            }
551:
552:            public void testBlobInsert() {
553:
554:                System.out.println("\n\n---< BLOB Insertion Tests\n");
555:                // create table for testing
556:                {
557:                    Xprint("create table blobCheck (bl blob(80)) ");
558:                }
559:
560:                // test insertion of literals.
561:                for (int i = 0; i < columns; i++) {
562:
563:                    if (colTypes[i].indexOf("blob") == -1)
564:                        continue;
565:
566:                    // Check char literals.
567:                    // (fail)
568:                    String insert = "insert into blobCheck (bl"
569:                            + " ) values ('string' )";
570:                    Xprint(insert);
571:                    // (succeed)
572:                    insert = "insert into blobCheck (bl" + " ) values (cast ("
573:                            + TestUtil.stringToHexLiteral("string")
574:                            + " as blob(80)) )";
575:                    Xprint(insert);
576:                    // Check bit literals.
577:                    // (fail)
578:                    insert = "insert into blobCheck (bl" + " ) values (X'48' )";
579:                    Xprint(insert);
580:                    // old CS compatible value:  ( b'01001' )
581:                    // (succeed)
582:                    insert = "insert into blobCheck (bl"
583:                            + " ) values (cast (X'C8' as blob(80)) )";
584:                    Xprint(insert);
585:                    // Check hex literals.
586:                    // (fail)
587:                    insert = "insert into blobCheck (bl"
588:                            + " ) values ( X'a78a' )";
589:                    Xprint(insert);
590:                    // (succeed)
591:                    insert = "insert into blobCheck (bl"
592:                            + " ) values (cast (X'a78a' as blob(80)) )";
593:                    Xprint(insert);
594:                }
595:                Xprint("drop table blobCheck");
596:            }
597:
598:            public void test() throws SQLException {
599:                // create table for testing
600:                {
601:                    String create = "create table " + table + " ( dummy int ";
602:                    for (int i = 0; i < columns; i++) {
603:                        create += ", " + colNames[i] + " " + colTypes[i];
604:                    }
605:                    create += " )";
606:                    Xprint(create); //st.execute(create);
607:                }
608:                // insert one row of numbers in string format if possible.
609:                {
610:                    String insert = "insert into " + table + " values ( 45 ";
611:                    for (int i = 0; i < columns; i++) {
612:                        insert += "," + colData[i];
613:                    }
614:                    insert += " )";
615:                    Xprint(insert);
616:                }
617:
618:                // insert various data in various columns, some will fail (int)
619:                {
620:                    for (int i = 0; i < columns; i++) {
621:                        String insert = "insert into " + table + " ( "
622:                                + colNames[i];
623:
624:                        if (isBitColumn(i))
625:                        // have to cast for blob columns.
626:                        {
627:                            insert += " ) values cast ( "
628:                                    + TestUtil.stringToHexLiteral("true")
629:                                    + "  AS " + colTypes[i] + ")";
630:                        } else
631:                            insert += " ) values ( 'true' )";
632:                        Xprint(insert);
633:                    }
634:                }
635:
636:                // run tests
637:                testGetters();
638:                testMetaData();
639:                testCastFrom();
640:                testCastTo();
641:
642:                // cleanup
643:                Xprint("drop table " + table); //st.execute("drop table "+table);
644:            }
645:
646:            private boolean isBitColumn(int offset) {
647:                return ((offset == BLOB_OFFSET) || (offset == BIT_OFFSET)
648:                        || (offset == LONG_VARBINARY_OFFSET) || (offset == TYPE_COL_OFFSET));
649:            }
650:        }
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