1
2
3
4
5
6 package org.tailormap.api.geotools.featuresources;
7
8 import jakarta.validation.constraints.NotNull;
9 import java.io.IOException;
10 import java.lang.invoke.MethodHandles;
11 import java.nio.ByteBuffer;
12 import java.sql.Connection;
13 import java.sql.DatabaseMetaData;
14 import java.sql.PreparedStatement;
15 import java.sql.ResultSet;
16 import java.sql.SQLException;
17 import java.sql.Statement;
18 import java.text.MessageFormat;
19 import java.time.OffsetDateTime;
20 import java.time.ZoneId;
21 import java.util.ArrayList;
22 import java.util.HashMap;
23 import java.util.List;
24 import java.util.Locale;
25 import java.util.Map;
26 import java.util.UUID;
27 import java.util.regex.Pattern;
28 import java.util.stream.Collectors;
29 import org.apache.commons.dbcp.DelegatingConnection;
30 import org.geotools.api.feature.type.AttributeDescriptor;
31 import org.geotools.jdbc.JDBCDataStore;
32 import org.jspecify.annotations.NonNull;
33 import org.slf4j.Logger;
34 import org.slf4j.LoggerFactory;
35 import org.springframework.security.core.context.SecurityContextHolder;
36 import org.tailormap.api.persistence.TMFeatureType;
37 import org.tailormap.api.persistence.json.JDBCConnectionProperties;
38 import org.tailormap.api.viewer.model.AttachmentMetadata;
39
40
41 public final class AttachmentsHelper {
42 private static final Logger logger =
43 LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
44
45 private static final Pattern NUMERIC_WITH_IDENTITY = Pattern.compile(
46 "(?i)\\b(?:int|integer|bigint|smallint|numeric|decimal|number)(?:\\s*\\(\\s*\\d+(?:\\s*,\\s*\\d+)?\\s*\\))?\\s+identity\\b");
47
48 private static final List<String> allowedPKTypesSupportingSize = List.of(
49
50
51
52 "CHARACTER",
53 "CHARACTER VARYING",
54 "CHAR",
55 "VARCHAR",
56
57 "NUMERIC",
58 "DECIMAL",
59
60
61 "NVARCHAR",
62 "NCHAR",
63
64 "VARCHAR2",
65 "NVARCHAR2",
66 "NUMBER",
67 "RAW");
68
69 private AttachmentsHelper() {
70
71 }
72
73 private static String getPostGISCreateAttachmentsTableStatement(
74 String tableName, String pkColumnName, String fkColumnType, String typeModifier, String schemaPrefix) {
75 if (!schemaPrefix.isEmpty()) {
76 schemaPrefix += ".";
77 }
78 return MessageFormat.format("""
79 CREATE TABLE IF NOT EXISTS {4}{0}_attachments (
80 {0}_pk {2}{3} NOT NULL REFERENCES {4}{0}({1}) ON DELETE CASCADE,
81 attachment_id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
82 file_name VARCHAR(255),
83 attribute_name VARCHAR(255) NOT NULL,
84 description TEXT,
85 attachment BYTEA NOT NULL,
86 attachment_size INTEGER NOT NULL,
87 mime_type VARCHAR(100),
88 created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
89 created_by VARCHAR(255) NOT NULL)
90 """, tableName, pkColumnName, fkColumnType, typeModifier, schemaPrefix);
91 }
92
93 private static String getSQLServerCreateAttachmentsTableStatement(
94 String tableName, String pkColumnName, String fkColumnType, String typeModifier, String schemaPrefix) {
95 if (!schemaPrefix.isEmpty()) {
96 schemaPrefix += ".";
97 }
98 return MessageFormat.format("""
99 IF OBJECT_ID(N''{4}{0}_attachments'', ''U'') IS NULL
100 BEGIN
101 CREATE TABLE {4}{0}_attachments (
102 {0}_pk {2}{3} NOT NULL REFERENCES {4}{0}({1}) ON DELETE CASCADE,
103 attachment_id UNIQUEIDENTIFIER NOT NULL DEFAULT NEWID() PRIMARY KEY,
104 file_name NVARCHAR(255),
105 attribute_name VARCHAR(255) NOT NULL,
106 description NVARCHAR(MAX),
107 attachment VARBINARY(MAX) NOT NULL,
108 mime_type NVARCHAR(100),
109 attachment_size INT NOT NULL,
110 created_at DATETIMEOFFSET NOT NULL DEFAULT SYSDATETIMEOFFSET(),
111 created_by NVARCHAR(255) NOT NULL)
112 END
113 """, tableName, pkColumnName, fkColumnType, typeModifier, schemaPrefix);
114 }
115
116 private static String getOracleCreateAttachmentsTableStatement(
117 String tableName, String pkColumnName, String fkColumnType, String typeModifier, String schemaPrefix) {
118 if (!schemaPrefix.isEmpty()) {
119 schemaPrefix += ".";
120 }
121
122 return MessageFormat.format("""
123 CREATE TABLE IF NOT EXISTS {4}{0}_ATTACHMENTS (
124 {0}_PK {2}{3} NOT NULL REFERENCES {4}{0}({1}) ON DELETE CASCADE,
125 ATTACHMENT_ID RAW(16) DEFAULT SYS_GUID() PRIMARY KEY,
126 FILE_NAME VARCHAR2(255),
127 ATTACHMENT BLOB NOT NULL,
128 ATTRIBUTE_NAME VARCHAR2(255) NOT NULL,
129 DESCRIPTION CLOB,
130 MIME_TYPE VARCHAR2(100),
131 ATTACHMENT_SIZE INT NOT NULL,
132 CREATED_AT TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
133 CREATED_BY VARCHAR2(255) NOT NULL)
134 """, tableName, pkColumnName, fkColumnType, typeModifier, schemaPrefix);
135 }
136
137
138
139
140
141
142
143
144
145
146 public static void createAttachmentTableForFeatureType(TMFeatureType featureType)
147 throws IOException, SQLException, IllegalArgumentException {
148 if (featureType == null
149 || featureType.getSettings() == null
150 || featureType.getSettings().getAttachmentAttributes() == null
151 || featureType.getSettings().getAttachmentAttributes().isEmpty()) {
152 throw new IllegalArgumentException("FeatureType "
153 + (featureType != null ? featureType.getName() : "null")
154 + " is invalid or has no attachment attributes defined in its settings");
155 }
156
157 featureType.getSettings().getAttachmentAttributes().stream()
158 .filter(attachmentAttributeType -> (attachmentAttributeType.getAttributeName() == null
159 || attachmentAttributeType.getAttributeName().isEmpty()))
160 .findAny()
161 .ifPresent(attachmentAttributeType -> {
162 throw new IllegalArgumentException("FeatureType "
163 + featureType.getName()
164 + " has an attachment attribute with invalid (null or empty) attribute name");
165 });
166
167 logger.debug(
168 "Creating attachment table for FeatureType: {} and attachment names {}",
169 featureType.getName(),
170 featureType.getSettings().getAttachmentAttributes());
171
172 JDBCDataStore ds = null;
173 try {
174 ds = (JDBCDataStore) new JDBCFeatureSourceHelper().createDataStore(featureType.getFeatureSource());
175
176 try (Connection conn = ds.getDataSource().getConnection();
177 Statement stmt = conn.createStatement()) {
178 String sql = getCreateAttachmentsForFeatureTypeStatements(featureType, ds);
179 logger.debug("About to create attachments table using statement:\n{}", sql);
180 stmt.execute(sql);
181 logger.info("Attachment table created for FeatureType: {}", featureType.getName());
182
183 sql = getCreateAttachmentsIndexForFeatureTypeStatements(featureType, ds);
184 logger.debug("About to create attachments table FK index using statement:\n{}", sql);
185 stmt.execute(sql);
186 logger.info("Attachment table FK index created for FeatureType: {}", featureType.getName());
187 }
188 } finally {
189 if (ds != null) {
190 ds.dispose();
191 }
192 }
193 }
194
195 public static void dropAttachmentTableForFeatureType(TMFeatureType featureType) throws IOException, SQLException {
196 JDBCDataStore ds = null;
197 try {
198 ds = (JDBCDataStore) new JDBCFeatureSourceHelper().createDataStore(featureType.getFeatureSource());
199 String schemaPrefix = ds.getDatabaseSchema();
200 if (!schemaPrefix.isEmpty()) {
201 schemaPrefix += ".";
202 }
203 String dropSql = MessageFormat.format("DROP TABLE {1}{0}_attachments", featureType.getName(), schemaPrefix);
204 logger.debug("About to drop attachments table using statement:\n{}", dropSql);
205 try (Connection conn = ds.getDataSource().getConnection();
206 Statement stmt = conn.createStatement()) {
207 stmt.execute(dropSql);
208 logger.info("Attachment table dropped for FeatureType: {}", featureType.getName());
209 }
210 } finally {
211 if (ds != null) {
212 ds.dispose();
213 }
214 }
215 }
216
217
218
219
220
221
222
223
224
225 private static String getCreateAttachmentsForFeatureTypeStatements(TMFeatureType featureType, JDBCDataStore ds)
226 throws IOException, IllegalArgumentException, SQLException {
227
228 String fkColumnType = null;
229 int fkColumnSize = 0;
230 AttributeDescriptor pkDescriptor =
231 ds.getSchema(featureType.getName()).getDescriptor(featureType.getPrimaryKeyAttribute());
232
233 try (Connection conn = ((DelegatingConnection) ds.getDataSource().getConnection()).getInnermostDelegate()) {
234 DatabaseMetaData metaData = conn.getMetaData();
235 try (ResultSet rs = metaData.getColumns(
236 conn.getCatalog(),
237 ds.getDatabaseSchema(),
238 featureType.getName(),
239 featureType.getPrimaryKeyAttribute())) {
240 if (rs.next()) {
241 fkColumnType = rs.getString("TYPE_NAME");
242 fkColumnSize = rs.getInt("COLUMN_SIZE");
243 }
244 }
245
246
247
248 if (fkColumnType == null) {
249 try (ResultSet rs = metaData.getColumns(
250 conn.getCatalog(),
251 ds.getDatabaseSchema(),
252 featureType.getName().toUpperCase(Locale.ROOT),
253 featureType.getPrimaryKeyAttribute().toUpperCase(Locale.ROOT))) {
254 if (rs.next()) {
255 fkColumnType = rs.getString("TYPE_NAME");
256 fkColumnSize = rs.getInt("COLUMN_SIZE");
257 }
258 }
259 }
260
261
262 if (fkColumnType == null) {
263 fkColumnType = (String) pkDescriptor.getUserData().get("org.geotools.jdbc.nativeTypeName");
264 }
265 }
266
267 String typeModifier = "";
268 if (fkColumnSize > 0) {
269 typeModifier = getValidModifier(fkColumnType, fkColumnSize);
270 }
271 logger.debug(
272 "Creating attachment table for feature type with primary key {} (native type: {}, meta type: {}, size:"
273 + " {} (modifier: {}))",
274 pkDescriptor.getLocalName(),
275 fkColumnType,
276 pkDescriptor.getUserData().get("org.geotools.jdbc.nativeTypeName"),
277 fkColumnSize,
278 typeModifier);
279
280 JDBCConnectionProperties connProperties = featureType.getFeatureSource().getJdbcConnection();
281 fkColumnType = getValidColumnType(fkColumnType, connProperties.getDbtype());
282 return switch (connProperties.getDbtype()) {
283 case POSTGIS ->
284 getPostGISCreateAttachmentsTableStatement(
285 featureType.getName(),
286 featureType.getPrimaryKeyAttribute(),
287 fkColumnType,
288 typeModifier,
289 ds.getDatabaseSchema());
290 case ORACLE ->
291 getOracleCreateAttachmentsTableStatement(
292 featureType.getName(),
293 featureType.getPrimaryKeyAttribute(),
294 fkColumnType,
295 typeModifier,
296 ds.getDatabaseSchema());
297 case SQLSERVER ->
298 getSQLServerCreateAttachmentsTableStatement(
299 featureType.getName(),
300 featureType.getPrimaryKeyAttribute(),
301 fkColumnType,
302 typeModifier,
303 ds.getDatabaseSchema());
304 default ->
305 throw new IllegalArgumentException(
306 "Unsupported database type for attachments: " + connProperties.getDbtype());
307 };
308 }
309
310 private static String getValidColumnType(String columnType, JDBCConnectionProperties.DbtypeEnum dbtype) {
311 if (dbtype.equals(JDBCConnectionProperties.DbtypeEnum.SQLSERVER)
312 && NUMERIC_WITH_IDENTITY.matcher(columnType).find()) {
313
314 columnType = columnType.replaceAll("(?i)\\s+identity\\b", "");
315 }
316
317 return columnType;
318 }
319
320 private static String getValidModifier(String columnType, int fkColumnSize) {
321 if (fkColumnSize > 0 && allowedPKTypesSupportingSize.contains(columnType.toUpperCase(Locale.ROOT))) {
322 if (columnType.equalsIgnoreCase("NUMERIC")
323 || columnType.equalsIgnoreCase("DECIMAL")
324 || columnType.equalsIgnoreCase("NUMBER")) {
325
326
327 return "(" + fkColumnSize + ",0)";
328 }
329 return "(" + fkColumnSize + ")";
330 } else {
331 return "";
332 }
333 }
334
335
336
337
338
339
340
341
342 private static String getCreateAttachmentsIndexForFeatureTypeStatements(TMFeatureType featureType, JDBCDataStore ds)
343 throws IllegalArgumentException {
344
345 String schemaPrefix = ds.getDatabaseSchema();
346 if (!schemaPrefix.isEmpty()) {
347 schemaPrefix += ".";
348 }
349
350 JDBCConnectionProperties connProperties = featureType.getFeatureSource().getJdbcConnection();
351 return switch (connProperties.getDbtype()) {
352 case POSTGIS ->
353 MessageFormat.format(
354 "CREATE INDEX IF NOT EXISTS {0}_attachments_fk ON {1}{0}_attachments({0}_pk)",
355 featureType.getName(), schemaPrefix);
356 case SQLSERVER -> MessageFormat.format("""
357 IF NOT EXISTS(SELECT * FROM sys.indexes WHERE name = ''{0}_attachments_fk'' AND object_id = OBJECT_ID(N''{1}{0}_attachments''))
358 BEGIN
359 CREATE INDEX {0}_attachments_fk ON {1}{0}_attachments({0}_pk)
360 END
361 """, featureType.getName(), schemaPrefix);
362 case ORACLE ->
363 MessageFormat.format(
364 "CREATE INDEX IF NOT EXISTS {1}{0}_attachments_fk ON {1}{0}_attachments({0}_pk)",
365 featureType.getName(), schemaPrefix)
366 .toUpperCase(Locale.ROOT);
367 default ->
368 throw new IllegalArgumentException(
369 "Unsupported database type for attachments: " + connProperties.getDbtype());
370 };
371 }
372
373
374 private static byte[] asBytes(UUID uuid) {
375 ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
376 bb.putLong(uuid.getMostSignificantBits());
377 bb.putLong(uuid.getLeastSignificantBits());
378 return bb.array();
379 }
380
381 public static AttachmentMetadata insertAttachment(
382 TMFeatureType featureType, AttachmentMetadata attachment, Object primaryKey, byte[] fileData)
383 throws IOException, SQLException {
384
385
386 attachment.setAttachmentId(UUID.randomUUID());
387 attachment.setAttachmentSize((long) fileData.length);
388 attachment.createdAt(OffsetDateTime.now(ZoneId.of("UTC")));
389 attachment.setCreatedBy(
390 SecurityContextHolder.getContext().getAuthentication().getName());
391
392 logger.debug(
393 "Adding attachment {} for feature {}:{}, type {}: {} (bytes: {})",
394 attachment.getAttachmentId(),
395 featureType.getName(),
396 primaryKey,
397 attachment.getMimeType(),
398 attachment,
399 fileData.length);
400
401 JDBCDataStore ds = null;
402 try {
403 ds = (JDBCDataStore) new JDBCFeatureSourceHelper().createDataStore(featureType.getFeatureSource());
404
405 String insertSql = MessageFormat.format(
406 """
407 INSERT INTO {1}{0}_attachments (
408 {0}_pk, attachment_id, file_name, attribute_name, description, attachment, attachment_size,
409 mime_type, created_at, created_by) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
410 """, featureType.getName(), ds.getDatabaseSchema().isEmpty() ? "" : ds.getDatabaseSchema() + ".");
411
412 logger.debug("Insert attachment SQL: {}", insertSql);
413 try (Connection conn = ds.getDataSource().getConnection();
414 PreparedStatement stmt = conn.prepareStatement(insertSql)) {
415
416 stmt.setObject(1, primaryKey);
417 if (featureType
418 .getFeatureSource()
419 .getJdbcConnection()
420 .getDbtype()
421 .equals(JDBCConnectionProperties.DbtypeEnum.ORACLE)) {
422
423 stmt.setBytes(2, asBytes(attachment.getAttachmentId()));
424 } else {
425 stmt.setObject(2, attachment.getAttachmentId());
426 }
427 stmt.setString(3, attachment.getFileName());
428 stmt.setString(4, attachment.getAttributeName());
429 stmt.setString(5, attachment.getDescription());
430 stmt.setBytes(6, fileData);
431 stmt.setLong(7, fileData.length);
432 stmt.setString(8, attachment.getMimeType());
433 stmt.setTimestamp(
434 9, java.sql.Timestamp.from(attachment.getCreatedAt().toInstant()));
435 stmt.setString(10, attachment.getCreatedBy());
436
437 stmt.executeUpdate();
438
439 return attachment;
440 }
441 } finally {
442 if (ds != null) {
443 ds.dispose();
444 }
445 }
446 }
447
448 public static void deleteAttachment(UUID attachmentId, TMFeatureType featureType) throws IOException, SQLException {
449 JDBCDataStore ds = null;
450 try {
451 ds = (JDBCDataStore) new JDBCFeatureSourceHelper().createDataStore(featureType.getFeatureSource());
452
453 String deleteSql = MessageFormat.format(
454 """
455 DELETE FROM {1}{0}_attachments WHERE attachment_id = ?
456 """, featureType.getName(), ds.getDatabaseSchema().isEmpty() ? "" : ds.getDatabaseSchema() + ".");
457
458 try (Connection conn = ds.getDataSource().getConnection();
459 PreparedStatement stmt = conn.prepareStatement(deleteSql)) {
460 if (featureType
461 .getFeatureSource()
462 .getJdbcConnection()
463 .getDbtype()
464 .equals(JDBCConnectionProperties.DbtypeEnum.ORACLE)) {
465 stmt.setBytes(1, asBytes(attachmentId));
466 } else {
467 stmt.setObject(1, attachmentId);
468 }
469
470 stmt.executeUpdate();
471 }
472 } finally {
473 if (ds != null) {
474 ds.dispose();
475 }
476 }
477 }
478
479 public static List<AttachmentMetadata> listAttachmentsForFeature(TMFeatureType featureType, Object primaryKey)
480 throws IOException, SQLException {
481
482 List<AttachmentMetadata> attachments = new ArrayList<>();
483 JDBCDataStore ds = null;
484 try {
485 ds = (JDBCDataStore) new JDBCFeatureSourceHelper().createDataStore(featureType.getFeatureSource());
486 String querySql = MessageFormat.format(
487 """
488 SELECT
489 {0}_pk,
490 attachment_id,
491 file_name,
492 attribute_name,
493 description,
494 attachment_size,
495 mime_type,
496 created_at,
497 created_by
498 FROM {1}{0}_attachments WHERE {0}_pk = ?
499 """, featureType.getName(), ds.getDatabaseSchema().isEmpty() ? "" : ds.getDatabaseSchema() + ".");
500 try (Connection conn = ds.getDataSource().getConnection();
501 PreparedStatement stmt = conn.prepareStatement(querySql)) {
502
503 stmt.setObject(1, primaryKey);
504
505 try (ResultSet rs = stmt.executeQuery()) {
506 while (rs.next()) {
507 AttachmentMetadata a = getAttachmentMetadata(rs);
508 attachments.add(a);
509 }
510 }
511 }
512 } finally {
513 if (ds != null) {
514 ds.dispose();
515 }
516 }
517 return attachments;
518 }
519
520 public static AttachmentWithBinary getAttachment(TMFeatureType featureType, UUID attachmentId)
521 throws IOException, SQLException {
522
523 JDBCDataStore ds = null;
524 try {
525 byte[] attachment;
526 ds = (JDBCDataStore) new JDBCFeatureSourceHelper().createDataStore(featureType.getFeatureSource());
527 String querySql = MessageFormat.format(
528 "SELECT attachment, attachment_size, mime_type, file_name FROM {1}{0}_attachments WHERE attachment_id = ?",
529 featureType.getName(), ds.getDatabaseSchema().isEmpty() ? "" : ds.getDatabaseSchema() + ".");
530 try (Connection conn = ds.getDataSource().getConnection();
531 PreparedStatement stmt = conn.prepareStatement(querySql)) {
532
533 if (featureType
534 .getFeatureSource()
535 .getJdbcConnection()
536 .getDbtype()
537 .equals(JDBCConnectionProperties.DbtypeEnum.ORACLE)) {
538 stmt.setBytes(1, asBytes(attachmentId));
539 } else {
540 stmt.setObject(1, attachmentId);
541 }
542
543 try (ResultSet rs = stmt.executeQuery()) {
544 if (rs.next()) {
545 attachment = rs.getBytes("attachment");
546 AttachmentMetadata a = new AttachmentMetadata();
547 long size = rs.getLong("attachment_size");
548 if (!rs.wasNull()) {
549 a.setAttachmentSize(size);
550 }
551 a.setMimeType(rs.getString("mime_type"));
552 a.setFileName(rs.getString("file_name"));
553 return new AttachmentWithBinary(
554 a, ByteBuffer.wrap(attachment).asReadOnlyBuffer());
555 } else {
556 return null;
557 }
558 }
559 }
560 } finally {
561 if (ds != null) {
562 ds.dispose();
563 }
564 }
565 }
566
567
568
569
570
571
572
573
574
575
576 public static @NonNull Map<String, List<AttachmentMetadata>> listAttachmentsForFeaturesByFeatureId(
577 TMFeatureType featureType, List<Object> featurePKs) throws IOException {
578 List<AttachmentMetadataListItem> attachments = new ArrayList<>();
579 if (featurePKs == null || featurePKs.isEmpty()) {
580 return new HashMap<>();
581 }
582
583 JDBCDataStore ds = null;
584 try {
585 ds = (JDBCDataStore) new JDBCFeatureSourceHelper().createDataStore(featureType.getFeatureSource());
586 String querySql = MessageFormat.format(
587 """
588 SELECT
589 {0}_pk,
590 attachment_id,
591 file_name,
592 attribute_name,
593 description,
594 attachment_size,
595 mime_type,
596 created_at,
597 created_by
598 FROM {2}{0}_attachments WHERE {0}_pk IN ( {1} )
599 """,
600 featureType.getName(),
601 String.join(", ", featurePKs.stream().map(id -> "?").toArray(String[]::new)),
602 ds.getDatabaseSchema().isEmpty() ? "" : ds.getDatabaseSchema() + ".");
603
604 try (Connection conn = ds.getDataSource().getConnection();
605 PreparedStatement stmt = conn.prepareStatement(querySql)) {
606
607 Object firstPK = featurePKs.getFirst();
608 boolean isUUID = firstPK instanceof UUID;
609 boolean isByteBuffer = firstPK instanceof ByteBuffer;
610
611 switch (featureType.getFeatureSource().getJdbcConnection().getDbtype()) {
612 case ORACLE -> {
613 for (int i = 0; i < featurePKs.size(); i++) {
614 if (isUUID) {
615
616
617 stmt.setBytes(i + 1, asBytes((UUID) featurePKs.get(i)));
618 } else if (isByteBuffer) {
619
620 stmt.setBytes(i + 1, ((ByteBuffer) featurePKs.get(i)).array());
621 } else {
622 stmt.setObject(i + 1, featurePKs.get(i));
623 }
624 }
625 }
626 case SQLSERVER -> {
627 for (int i = 0; i < featurePKs.size(); i++) {
628 if (isUUID) {
629
630 stmt.setString(
631 i + 1, featurePKs.get(i).toString().toUpperCase(Locale.ROOT));
632 } else {
633 stmt.setObject(i + 1, featurePKs.get(i));
634 }
635 }
636 }
637 case POSTGIS -> {
638 for (int i = 0; i < featurePKs.size(); i++) {
639 stmt.setObject(i + 1, featurePKs.get(i));
640 }
641 }
642 default ->
643 throw new UnsupportedOperationException("Unsupported database type: "
644 + featureType
645 .getFeatureSource()
646 .getJdbcConnection()
647 .getDbtype());
648 }
649
650 try (ResultSet rs = stmt.executeQuery()) {
651 while (rs.next()) {
652 Object keyObject = rs.getObject(1);
653 if (isUUID
654 && featureType
655 .getFeatureSource()
656 .getJdbcConnection()
657 .getDbtype()
658 .equals(JDBCConnectionProperties.DbtypeEnum.ORACLE)) {
659
660 byte[] rawBytes = rs.getBytes(1);
661 ByteBuffer bb = ByteBuffer.wrap(rawBytes);
662 keyObject = new UUID(bb.getLong(), bb.getLong());
663 } else if (isUUID
664 && featureType
665 .getFeatureSource()
666 .getJdbcConnection()
667 .getDbtype()
668 .equals(JDBCConnectionProperties.DbtypeEnum.SQLSERVER)) {
669
670 keyObject = UUID.fromString(rs.getString(1));
671 } else if (isByteBuffer) {
672 assert keyObject instanceof byte[];
673 keyObject = ByteBuffer.wrap((byte[]) keyObject);
674 }
675 attachments.add(new AttachmentMetadataListItem(
676 AttachmentsHelper.fidFromPK(featureType, keyObject), getAttachmentMetadata(rs)));
677 }
678 }
679 } catch (SQLException ex) {
680 logger.error("Failed to get attachments for {}", featureType.getName(), ex);
681 }
682 } finally {
683 if (ds != null) {
684 ds.dispose();
685 }
686 }
687 logger.debug(
688 "Found {} attachments for {} features (features: {}, attachments: {})",
689 attachments.size(),
690 featurePKs.size(),
691 featurePKs,
692 attachments.toArray());
693
694 return attachments.stream()
695 .collect(Collectors.groupingBy(
696 AttachmentMetadataListItem::fid,
697 Collectors.mapping(AttachmentMetadataListItem::value, Collectors.toList())));
698 }
699
700
701
702
703
704
705
706
707
708 public static String fidFromPK(@NotNull TMFeatureType featureType, @NotNull Object featurePK) {
709 if (featurePK == null) {
710 throw new IllegalArgumentException("featurePK cannot be null");
711 }
712 if (featureType == null) {
713 throw new IllegalArgumentException("featureType cannot be null");
714 }
715 if (featurePK instanceof byte[] pkBytes) {
716 ByteBuffer bb = ByteBuffer.wrap(pkBytes);
717 UUID pkUUID = new UUID(bb.getLong(), bb.getLong());
718 return "%s.%s".formatted(featureType.getName(), pkUUID);
719 } else {
720 return "%s.%s".formatted(featureType.getName(), featurePK);
721 }
722 }
723
724 private static AttachmentMetadata getAttachmentMetadata(ResultSet rs) throws SQLException {
725 AttachmentMetadata a = new AttachmentMetadata();
726
727 Object idObj = rs.getObject("attachment_id");
728 if (idObj instanceof UUID u) {
729 a.setAttachmentId(u);
730 } else if (idObj instanceof byte[] b) {
731 ByteBuffer bb = ByteBuffer.wrap(b);
732 a.setAttachmentId(new UUID(bb.getLong(), bb.getLong()));
733 } else {
734 String s = rs.getString("attachment_id");
735 if (s != null && !s.isEmpty()) {
736 a.setAttachmentId(UUID.fromString(s));
737 }
738 }
739 a.setFileName(rs.getString("file_name"));
740 a.setAttributeName(rs.getString("attribute_name"));
741 a.setDescription(rs.getString("description"));
742 long size = rs.getLong("attachment_size");
743 if (!rs.wasNull()) {
744 a.setAttachmentSize(size);
745 }
746 a.setMimeType(rs.getString("mime_type"));
747 java.sql.Timestamp ts = rs.getTimestamp("created_at");
748 if (ts != null) {
749 a.setCreatedAt(OffsetDateTime.ofInstant(ts.toInstant(), ZoneId.of("UTC")));
750 }
751 a.setCreatedBy(rs.getString("created_by"));
752 return a;
753 }
754
755 public record AttachmentWithBinary(
756 @NotNull AttachmentMetadata attachmentMetadata,
757 @NotNull ByteBuffer attachment) {}
758
759 private record AttachmentMetadataListItem(
760 @NotNull String fid, @NotNull AttachmentMetadata value) {}
761 }