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1
package eu.dnetlib.enabling.database.utils;
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3
import java.io.StringReader;
4
import java.sql.*;
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import java.sql.Date;
6
import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.*;
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import java.util.concurrent.ArrayBlockingQueue;
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import java.util.concurrent.BlockingQueue;
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import java.util.concurrent.Executors;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicReference;
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import java.util.regex.Pattern;
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import javax.sql.DataSource;
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17
import com.google.common.collect.Lists;
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import com.google.common.collect.Queues;
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import com.google.common.collect.Sets;
20
import eu.dnetlib.enabling.database.DataSourceFactory;
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import eu.dnetlib.enabling.database.TransactionTemplateFactory;
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import eu.dnetlib.enabling.database.objects.DnetDatabase;
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import eu.dnetlib.enabling.database.rmi.DatabaseException;
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import eu.dnetlib.miscutils.datetime.DateUtils;
25
import eu.dnetlib.miscutils.functional.string.Sanitizer;
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import org.apache.commons.lang.BooleanUtils;
27
import org.apache.commons.logging.Log;
28
import org.apache.commons.logging.LogFactory;
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import org.apache.velocity.app.VelocityEngine;
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import org.dom4j.Document;
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import org.dom4j.DocumentHelper;
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import org.dom4j.Element;
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import org.dom4j.Node;
34
import org.dom4j.io.SAXReader;
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import org.joda.time.DateTime;
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import org.joda.time.format.ISODateTimeFormat;
37
import org.springframework.beans.factory.annotation.Required;
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import org.springframework.dao.DataAccessException;
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import org.springframework.jdbc.core.JdbcTemplate;
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import org.springframework.jdbc.core.RowCallbackHandler;
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import org.springframework.jdbc.support.rowset.SqlRowSet;
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import org.springframework.transaction.TransactionStatus;
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import org.springframework.transaction.support.TransactionCallback;
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import org.springframework.transaction.support.TransactionTemplate;
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import org.springframework.ui.velocity.VelocityEngineUtils;
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47
public class DatabaseUtils {
48

    
49
	public static final String DNET_RESOURCE_ID_FIELD = "_dnet_resource_identifier_";
50
	public static final int BLOCKING_QUEUE_TIMEOUT = 300;
51
	private static final String SQL_DATE_FORMAT = "yyyy-MM-dd";
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	private static final Log log = LogFactory.getLog(DatabaseUtils.class); // NOPMD by marko on 11/24/08 5:02 PM
53
	private static final int BLOCKING_QUEUE_SIZE = 200;
54
	private static final Set<String> TRUE_VALUES = Sets.newHashSet("true", "t", "yes", "y", "vero", "v");
55
	private static final Set<String> FALSE_VALUES = Sets.newHashSet("false", "f", "no", "n", "falso");
56
	private DataSourceFactory dataSourceFactory;
57
	private JdbcTemplateFactory jdbcTemplateFactory;
58
	private TransactionTemplateFactory transactionTemplateFactory;
59
	private String defaultDB;
60
	private VelocityEngine velocityEngine;
61
	private String dbPrefix;
62
	private int numbersOfRecordsForTransaction;
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64
	public List<String> listCommonDBTables(final String database) throws DatabaseException {
65
		String query =
66
				"SELECT table_name FROM information_schema.tables " + "WHERE table_schema = 'public' " + "AND table_type != 'VIEW' "
67
						+ "AND table_name NOT LIKE '%_log'";
68
		return getTypedListFromSql(database, query, String.class);
69
	}
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71
	public List<String> listCommonDBViews(final String database) throws DatabaseException {
72
		String query =
73
				"SELECT table_name FROM information_schema.tables " + "WHERE table_schema = 'public' " + "AND table_type = 'VIEW' "
74
						+ "AND table_name NOT LIKE '%_log'";
75
		return getTypedListFromSql(database, query, String.class);
76
	}
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78
	public Map<String, TableDates> getTableDatesForDB(final String db) throws DatabaseException {
79
		Map<String, TableDates> res = new HashMap<String, TableDates>();
80

    
81
		for (String table : listCommonDBTables(db)) {
82
			try {
83
				TableDates dates = new TableDates();
84

    
85
				String query =
86
						"select lastinsert, lastupdate, lastdelete from " + "(select max(date) as lastinsert from " + table
87
								+ "_log where operation='insert') as t1, " + "(select max(date) as lastupdate from " + table
88
								+ "_log where operation='update') as t2, " + "(select max(date) as lastdelete from " + table
89
								+ "_log where operation='delete') as t3";
90

    
91
				SqlRowSet srs = executeSql(db, query, SqlRowSet.class);
92
				if (srs.next()) {
93
					dates.setLastInsert(srs.getDate("lastinsert"));
94
					dates.setLastUpdate(srs.getDate("lastupdate"));
95
					dates.setLastDelete(srs.getDate("lastdelete"));
96
				}
97
				res.put(table, dates);
98
			} catch (Exception e) {
99
				log.warn("Error obtaing dates for table " + table, e);
100
			}
101
		}
102
		return res;
103
	}
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105
	public List<DnetDatabase> listAllDatabases() throws DatabaseException {
106
		final String query =
107
				"SELECT d.datname AS db, COALESCE(dsc.description,'')='isManaged' AS managed FROM pg_database d LEFT OUTER JOIN pg_shdescription dsc ON (d.oid = dsc.objoid) WHERE d.datname LIKE '"
108
						+ dbPrefix + "%' ORDER BY d.datname DESC";
109
		final JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(defaultDB);
110

    
111
		final List<DnetDatabase> list = Lists.newArrayList();
112
		for (Map<String, Object> map : jdbcTemplate.queryForList(query)) {
113
			list.add(new DnetDatabase(map.get("db").toString(), Boolean.parseBoolean(map.get("managed").toString())));
114
		}
115
		return list;
116

    
117
	}
118

    
119
	public <T> List<T> getTypedListFromSql(final String dbName, final String query, final Class<T> clazz) throws DatabaseException {
120
		JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(dbName);
121

    
122
		try {
123
			List<T> list = new ArrayList<T>();
124
			for (Object obj : jdbcTemplate.queryForList(query, clazz)) {
125
				list.add(clazz.cast(obj));
126
			}
127
			return list;
128
		} catch (DataAccessException e) {
129
			throw new DatabaseException(e);
130
		}
131
	}
132

    
133
	public List<String> getSimpleListFromSql(final String dbName, final String query) throws DatabaseException {
134

    
135
		JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(dbName);
136

    
137
		try {
138
			List<String> list = new ArrayList<String>();
139
			for (Object obj : jdbcTemplate.queryForList(query)) {
140
				list.add(obj.toString());
141
			}
142
			return list;
143
		} catch (DataAccessException e) {
144
			throw new DatabaseException(e);
145
		}
146
	}
147

    
148
	public void executeSql(final String db, final String query) throws DatabaseException {
149
		executeSql(db, query, Void.class);
150
	}
151

    
152
	@SuppressWarnings("unchecked")
153
	public <T> T executeSql(final String dbName, final String query, final Class<T> clazz) throws DatabaseException {
154

    
155
		final JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(dbName);
156
		try {
157
			if (clazz == Integer.class) return (T) jdbcTemplate.queryForObject(query, Integer.class);
158
			else if (clazz == List.class) return (T) jdbcTemplate.queryForList(query);
159
			else if (clazz == Map.class) return (T) jdbcTemplate.queryForMap(query);
160
			else if (clazz == SqlRowSet.class) return (T) jdbcTemplate.queryForRowSet(query);
161
			else if (clazz == BlockingQueue.class) {
162
				log.debug("Creating Queue");
163

    
164
				final ArrayBlockingQueue<Map<String, Object>> q = Queues.newArrayBlockingQueue(BLOCKING_QUEUE_SIZE);
165

    
166
				Runnable run = new Runnable() {
167

    
168
					@Override
169
					public void run() {
170
						try {
171
							jdbcTemplate.query(query, getRowCallback(q));
172
						} catch (Throwable e) {
173
							log.error("Exception executing SQL", e);
174
							throw new RuntimeException(e);
175
						}
176
						try {
177
							// An empty Map indicates the end of the resultset
178
							q.offer(new HashMap<String, Object>(), BLOCKING_QUEUE_TIMEOUT, TimeUnit.SECONDS);
179
						} catch (InterruptedException e) {
180
							log.error("Error putting LAST element in queue");
181
							throw new RuntimeException(e);
182
						}
183
						log.debug(" -- End of Sql Resultset");
184
					}
185

    
186
					private RowCallbackHandler getRowCallback(final BlockingQueue<Map<String, Object>> q) {
187
						return new RowCallbackHandler() {
188

    
189
							@Override
190
							public void processRow(final ResultSet rs) throws SQLException {
191

    
192
								ResultSetMetaData md = rs.getMetaData();
193
								Map<String, Object> row = new HashMap<String, Object>();
194
								for (int i = 1; i <= md.getColumnCount(); i++) {
195
									row.put(md.getColumnName(i), rs.getObject(i));
196
								}
197
								try {
198
									if (!rs.isClosed() && !q.offer(row, BLOCKING_QUEUE_TIMEOUT, TimeUnit.SECONDS)) {
199
										log.warn("The consumer doesn't consume my queue, I stop");
200
										rs.close();
201
										return;
202
									}
203
									log.debug("Putted element in queue");
204
								} catch (InterruptedException e) {
205
									log.error("Error putting element in queue");
206
									throw new RuntimeException(e);
207
								}
208
							}
209
						};
210
					}
211
				};
212
				Executors.newSingleThreadExecutor().submit(run);
213

    
214
				log.debug("Returned Queue");
215

    
216
				return (T) q;
217
			} else {
218
				jdbcTemplate.update(query);
219
				return null;
220
			}
221
		} catch (Throwable e) {
222
			throw new DatabaseException(e);
223
		}
224
	}
225

    
226
	public boolean contains(final String db, final String table, final String column, final String value) throws DatabaseException {
227
		String query = "";
228
		try {
229
			verifyParameters(db, table, column);
230
			query = "SELECT " + column + " FROM " + table + " WHERE " + column + " = '" + value + "'";
231
			List<String> res = getSimpleListFromSql(db, query);
232
			return res != null && res.size() > 0;
233
		} catch (Throwable e) {
234
			throw new DatabaseException("Error performing SQL: " + query, e);
235
		}
236
	}
237

    
238
	public List<Map<?, ?>> describeTable(final String database, final String table) throws DatabaseException {
239
		verifyParameters(database, table);
240

    
241
		try {
242
			JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(database);
243
			List<Map<?, ?>> response = new ArrayList<Map<?, ?>>();
244
			String query = "SELECT * FROM information_schema.columns WHERE table_name = ?";
245

    
246
			for (Object o : jdbcTemplate.queryForList(query, new Object[] { table })) {
247
				if (o instanceof Map<?, ?>) {
248
					response.add((Map<?, ?>) o);
249
				}
250
			}
251
			return response;
252
		} catch (DataAccessException e) {
253
			throw new DatabaseException(e);
254
		}
255
	}
256

    
257
	public String dumpTableAsXML(final String db, final String t) throws DatabaseException {
258
		return dumpTableAsDoc(db, t).asXML();
259
	}
260

    
261
	public Document dumpTableAsDoc(final String db, final String t) throws DatabaseException {
262
		Document doc = DocumentHelper.createDocument();
263

    
264
		Element root = doc.addElement("DB_TABLE");
265
		Element head = root.addElement("HEADER");
266

    
267
		head.addElement("DATABASE").addAttribute("value", db);
268
		head.addElement("TABLE").addAttribute("value", t);
269
		head.addElement("DATE").addAttribute("value", DateUtils.now_ISO8601());
270

    
271
		Element body = root.addElement("BODY");
272
		for (Document d : dumpTableAsList(db, t)) {
273
			body.add(d.getRootElement());
274
		}
275
		return doc;
276
	}
277

    
278
	public List<Document> dumpTableAsList(final String db, final String t) throws DatabaseException {
279
		JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(db);
280

    
281
		List<Document> list = new ArrayList<Document>();
282
		for (Object o : jdbcTemplate.queryForList("SELECT * FROM " + t)) {
283
			if (o instanceof Map<?, ?>) {
284
				list.add(rowToDocument((Map<?, ?>) o));
285
			}
286
		}
287
		return list;
288
	}
289

    
290
	public Document rowToDocument(final Map<?, ?> map) throws DatabaseException {
291
		Document doc = DocumentHelper.createDocument();
292

    
293
		Element row = doc.addElement("ROW");
294
		for (Map.Entry<?, ?> entry : map.entrySet()) {
295
			Element col = row.addElement("FIELD");
296
			col.addAttribute("name", "" + entry.getKey());
297
			addValue(col, entry.getValue());
298
		}
299
		return doc;
300
	}
301

    
302
	public Document getRowByResourceId(final String database, final String table, final String resourceId) throws DatabaseException {
303
		verifyParameters(database, table);
304

    
305
		JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(database);
306
		String query = "SELECT * FROM " + table + " WHERE " + DNET_RESOURCE_ID_FIELD + "=?";
307

    
308
		Map<?, ?> map = jdbcTemplate.queryForMap(query, resourceId);
309
		Document doc = DocumentHelper.createDocument();
310

    
311
		Element root = doc.addElement("DB_RECORD");
312
		Element head = root.addElement("HEADER");
313
		head.addElement("RESOURCE_IDENTIFIER").addAttribute("value", resourceId);
314
		head.addElement("DATABASE").addAttribute("value", database);
315
		head.addElement("TABLE").addAttribute("value", table);
316
		head.addElement("DATE").addAttribute("value", DateUtils.now_ISO8601());
317

    
318
		Element body = root.addElement("BODY");
319

    
320
		Element row = body.addElement("ROW");
321

    
322
		for (Map.Entry<?, ?> entry : map.entrySet()) {
323
			Element col = row.addElement("FIELD");
324
			col.addAttribute("name", "" + entry.getKey());
325
			addValue(col, entry.getValue());
326
		}
327

    
328
		return doc;
329
	}
330

    
331
	private void addValue(final Element elem, final Object value) throws DatabaseException {
332
		if (value instanceof Array) {
333
			try {
334
				for (Object o : (Object[]) ((Array) value).getArray()) {
335
					addValue(elem.addElement("ITEM"), o);
336
				}
337
			} catch (Exception e) {
338
				throw new DatabaseException("Error procsessing a Array", e);
339
			}
340
		} else if (value != null) {
341
			elem.addText(Sanitizer.sanitize(value.toString()));
342
		} else {
343
			elem.addAttribute("isNull", "true");
344
		}
345
	}
346

    
347
	private void verifyParameters(final String... params) throws DatabaseException {
348
		Pattern pattern = Pattern.compile("\\w{1,128}");
349

    
350
		for (String p : params) {
351
			log.debug("TESTING SQL PARAM:" + p);
352
			if (p == null) throw new DatabaseException("Parameter is null");
353
			else if (!pattern.matcher(p).matches()) throw new DatabaseException("Parameter [" + p + "] contains an invalid character");
354
			else {
355
				log.debug("TEST OK");
356
			}
357
		}
358
	}
359

    
360
	public void importFromIterable(final String db, final Iterable<String> iterable) throws DatabaseException {
361
		verifyParameters(db);
362

    
363
		final DataSource dataSource = dataSourceFactory.createDataSource(db);
364
		final JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(dataSource);
365
		final TransactionTemplate transactionTemplate = transactionTemplateFactory.createTransactionTemplate(dataSource);
366

    
367
		int counterTotal = 0;
368

    
369
		long start = DateUtils.now();
370

    
371
		List<GenericRow> rows = new ArrayList<GenericRow>();
372
		for (String prof : iterable) {
373
			rows.addAll(obtainListOfRows(prof));
374
			if (rows.size() > numbersOfRecordsForTransaction) {
375
				counterTotal += rows.size();
376
				importTransaction(jdbcTemplate, transactionTemplate, rows);
377
				rows.clear();
378
			}
379
		}
380
		counterTotal += rows.size();
381
		importTransaction(jdbcTemplate, transactionTemplate, rows);
382

    
383
		long end = DateUtils.now();
384

    
385
		log.info("**********************************************************");
386
		log.info("Processed " + counterTotal + " rows in " + ((end - start) / 1000) + " seconds");
387
		log.info("**********************************************************");
388
	}
389

    
390
	private void importTransaction(final JdbcTemplate jdbcTemplate, final TransactionTemplate transactionTemplate, List<GenericRow> rows)
391
			throws DatabaseException {
392
		if (rows != null && rows.size() > 0) {
393
			importTransactionInternal(jdbcTemplate, transactionTemplate, rows);
394
		}
395
	}
396

    
397
	private List<GenericRow> importTransactionInternal(final JdbcTemplate jdbcTemplate,
398
			final TransactionTemplate transactionTemplate,
399
			final List<GenericRow> rows) throws DatabaseException {
400

    
401
		final AtomicReference<DatabaseException> error = new AtomicReference<DatabaseException>();
402

    
403
		try {
404
			return transactionTemplate.execute(new TransactionCallback<List<GenericRow>>() {
405

    
406
				@Override
407
				public List<GenericRow> doInTransaction(final TransactionStatus status) {
408
					final List<GenericRow> ok = Lists.newArrayList();
409
					try {
410
						for (GenericRow row : rows) {
411
							if (row.isToDelete()) {
412
								deleteRow(jdbcTemplate, row.getTable(), row.getFields());
413
							} else {
414
								addOrUpdateRow(jdbcTemplate, row.getTable(), row.getFields());
415
							}
416
							ok.add(row);
417
						}
418
					} catch (DatabaseException e) {
419
						log.warn("Transaction failed", e);
420
						status.setRollbackOnly();
421
						error.set(e);
422
					}
423
					return ok;
424
				}
425
			});
426
		} finally {
427
			if (error.get() != null) {
428
				throw error.get();
429
			}
430
		}
431
	}
432

    
433
	protected void addOrUpdateRow(final JdbcTemplate jdbcTemplate, final String table, final Map<String, Object> rowFields) throws DatabaseException {
434
		try {
435

    
436
			if (log.isDebugEnabled()) {
437
				log.debug("Adding or updating element to table " + table);
438
			}
439
			verifyParameters(table);
440
			verifyParameters(rowFields.keySet().toArray(new String[rowFields.size()]));
441

    
442
			String fields = "";
443
			String values = "";
444
			List<Object> list = new ArrayList<Object>();
445

    
446
			for (Map.Entry<String, Object> e : rowFields.entrySet()) {
447
				if (!fields.isEmpty()) {
448
					fields += ",";
449
				}
450
				fields += e.getKey();
451
				if (!values.isEmpty()) {
452
					values += ",";
453
				}
454
				values += "?";
455
				list.add(e.getValue());
456
			}
457

    
458
			int count = 0;
459
			if (rowFields.containsKey(DNET_RESOURCE_ID_FIELD)) {
460
				List<Object> list2 = new ArrayList<Object>();
461
				list2.addAll(list);
462
				list2.add(rowFields.get(DNET_RESOURCE_ID_FIELD));
463
				count =
464
						jdbcTemplate.update("UPDATE " + table + " SET (" + fields + ") = (" + values + ") WHERE " + DNET_RESOURCE_ID_FIELD + "=?",
465
								list2.toArray());
466
			}
467
			if (count == 0) {
468
				jdbcTemplate.update("INSERT INTO " + table + " (" + fields + ") VALUES (" + values + ")", list.toArray());
469
			}
470
		} catch (final Exception e) {
471
			throw new DatabaseException("Error adding or updating record", e);
472
		}
473
	}
474

    
475
	protected void deleteRow(final JdbcTemplate jdbcTemplate, final String table, final Map<String, Object> rowFields) throws DatabaseException {
476
		if (log.isDebugEnabled()) {
477
			log.debug("Deleting element from table " + table);
478
		}
479
		verifyParameters(table);
480
		verifyParameters(rowFields.keySet().toArray(new String[rowFields.size()]));
481

    
482
		List<Object> list = new ArrayList<Object>();
483

    
484
		String where = "";
485

    
486
		for (Map.Entry<String, Object> e : rowFields.entrySet()) {
487
			if (!where.isEmpty()) {
488
				where += " AND ";
489
			}
490
			where += e.getKey() + "=?";
491
			list.add(e.getValue());
492
		}
493

    
494
		if (where.isEmpty()) throw new DatabaseException("Delete condition is empty");
495
		int n = jdbcTemplate.update("DELETE FROM " + table + " WHERE " + where, list.toArray());
496

    
497
		if (log.isDebugEnabled()) {
498
			log.debug("Number of Deleted records: " + n);
499
		}
500
	}
501

    
502
	public void deleteRowByResourceId(final String database, final String table, final String resourceIdentifier) throws DatabaseException {
503
		verifyParameters(database, table, resourceIdentifier);
504
		JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(database);
505
		jdbcTemplate.update("DELETE FROM " + table + " WHERE " + DNET_RESOURCE_ID_FIELD + "=?", resourceIdentifier);
506
	}
507

    
508
	public void clearTable(final String database, final String table) throws DatabaseException {
509
		verifyParameters(database, table);
510

    
511
		JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(database);
512
		jdbcTemplate.update("DELETE FROM " + table);
513
	}
514

    
515
	public void prepareManagementOfTable(final String database, final String table) throws DatabaseException {
516
		verifyParameters(database, table);
517
		JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(database);
518

    
519
		if (!isManagedTable(jdbcTemplate, table)) {
520
			jdbcTemplate.update(getSQLFromTemplate("manageTable", database, table, null));
521
			log.info("Added management of table " + table);
522
		}
523
	}
524

    
525
	public void removeManagementOfTable(final String database, final String table) throws DatabaseException {
526
		verifyParameters(database, table);
527
		JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(database);
528

    
529
		if (isManagedTable(jdbcTemplate, table)) {
530
			jdbcTemplate.update(getSQLFromTemplate("unmanageTable", database, table, null));
531
			log.info("Removed management of table " + table);
532
		}
533
	}
534

    
535
	public boolean isManagedTable(final String database, final String table) throws DatabaseException {
536
		verifyParameters(database, table);
537
		JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(database);
538
		return isManagedTable(jdbcTemplate, table);
539
	}
540

    
541
	private boolean isManagedTable(final JdbcTemplate jdbcTemplate, final String table) {
542
		return jdbcTemplate.queryForObject("SELECT count(*) FROM information_schema.columns WHERE table_name = ? AND column_name = ?", Integer.class,
543
				table, DNET_RESOURCE_ID_FIELD) == 1;
544
	}
545

    
546
	public boolean isLoggedTable(final String database, final String table) throws DatabaseException {
547
		verifyParameters(database, table);
548
		JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(database);
549
		return isLoggedTable(jdbcTemplate, table);
550
	}
551

    
552
	private boolean isLoggedTable(final JdbcTemplate jdbcTemplate, final String table) {
553
		return jdbcTemplate.queryForObject("SELECT count(*) FROM information_schema.tables WHERE table_name = ?", Integer.class,
554
				table + "_log") == 1;
555
	}
556

    
557
	public String getDefaultDnetIdentifier(final String database, final String table) throws DatabaseException {
558
		verifyParameters(database, table);
559
		JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(database);
560
		if (isManagedTable(jdbcTemplate, table)) return jdbcTemplate.queryForObject(
561
				"SELECT column_default FROM information_schema.columns WHERE table_name = ? AND column_name = ?", new Object[] {
562
						table, DNET_RESOURCE_ID_FIELD }, String.class);
563
		return "";
564
	}
565

    
566
	public void reassignDefaultDnetIdentifiers(final String db) throws DatabaseException {
567
		for (String t : listCommonDBTables(db)) {
568
			reassignDefaultDnetIdentifiers(db, t);
569
		}
570
	}
571

    
572
	public void reassignDefaultDnetIdentifiers(final String db, final String t) throws DatabaseException {
573
		if (!isManagedTable(db, t)) return;
574

    
575
		SqlRowSet rows =
576
				executeSql(db, "SELECT pg_attribute.attname as pkey FROM pg_index, pg_class, pg_attribute " + "WHERE pg_class.oid = '" + t + "'::regclass "
577
						+ "AND indrelid = pg_class.oid " + "AND pg_attribute.attrelid = pg_class.oid "
578
						+ "AND pg_attribute.attnum = any(pg_index.indkey) AND indisprimary " + "ORDER BY pkey", SqlRowSet.class);
579

    
580
		String defaultValue = "";
581
		while (rows.next()) {
582
			if (!defaultValue.isEmpty()) {
583
				defaultValue += "||'@@'||";
584
			}
585
			defaultValue += rows.getString("pkey");
586
		}
587
		executeSql(db, "UPDATE " + t + " SET " + DatabaseUtils.DNET_RESOURCE_ID_FIELD + " = " + defaultValue);
588
		log.info("Reassigned dnetId for table " + t);
589
	}
590

    
591
	public String getSQLFromTemplate(final String sqlTemplate, final String db, final String table, Map<String, Object> map) {
592
		if (map == null) {
593
			map = new HashMap<String, Object>();
594
		}
595

    
596
		map.put("mainDB", defaultDB);
597
		map.put("db", db);
598
		map.put("table", table);
599
		map.put("idField", DNET_RESOURCE_ID_FIELD);
600

    
601
		return VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, "eu/dnetlib/enabling/database/velocity/" + sqlTemplate + ".sql.vm", "UTF-8", map);
602
	}
603

    
604
	public List<GenericRow> obtainListOfRows(final String xml) throws DatabaseException {
605
		try {
606
			Document doc = new SAXReader().read(new StringReader(xml));
607

    
608
			List<GenericRow> list = new ArrayList<GenericRow>();
609

    
610
			for (Object or : doc.selectNodes("//ROW")) {
611
				Element row = (Element) or;
612

    
613
				String table = row.valueOf("@table");
614

    
615
				if ((table == null) || table.isEmpty()) throw new DatabaseException("Attribute table is missing in XSLT");
616

    
617
				boolean toDelete = "deleted".equals(row.valueOf("@status"));
618

    
619
				Map<String, Object> fields = new HashMap<String, Object>();
620

    
621
				for (Object of : row.selectNodes("./FIELD")) {
622
					Node node = (Node) of;
623
					String key = node.valueOf("@name");
624
					String type = node.valueOf("@type");
625
					String format = node.valueOf("@format");
626
					String valueS = node.getText().trim();
627

    
628
					if ((key != null) && !key.isEmpty()) {
629
						Object value = valueS;
630
						if (type != null) {
631

    
632
							try {
633
								// probably an empty string in a typed field means null
634
								if ("".equals(valueS)) {
635
									value = null;
636
								} else if (type.equals("int")) {
637
									value = Integer.parseInt(valueS);
638
								} else if (type.equals("float")) {
639
									value = Float.parseFloat(valueS);
640
								} else if (type.equals("boolean")) {
641
									value = parseBoolean(valueS);
642
								} else if (type.equals("date")) {
643
									value = parseDate(valueS, format);
644
								} else if (type.equals("iso8601Date")) {
645
									DateTime date = ISODateTimeFormat.dateTimeParser().parseDateTime(valueS);
646
									value = date.toDate();
647
									// value = new DateUtils().parse(valueS);
648
								}
649
							} catch (IllegalArgumentException e) {
650
								log.fatal("cannot convert '" + valueS + "' to " + type, e);
651
								throw e;
652
							}
653
						}
654
						fields.put(key, value);
655
					}
656
				}
657

    
658
				list.add(new GenericRow(table, fields, toDelete));
659
			}
660
			return list;
661
		} catch (Exception e) {
662
			log.error("Error obtaining list of rows from xml: " + xml);
663
			throw new DatabaseException(e);
664
		}
665
	}
666

    
667
	protected boolean parseBoolean(final String s) {
668
		if (TRUE_VALUES.contains(s.toLowerCase().trim())) return true;
669
		if (FALSE_VALUES.contains(s.toLowerCase().trim())) return false;
670

    
671
		return BooleanUtils.toBoolean(s);
672
	}
673

    
674
	public void setManaged(final String dbName, final boolean managed) throws DatabaseException {
675
		verifyParameters(dbName);
676
		JdbcTemplate jdbcTemplate = jdbcTemplateFactory.createJdbcTemplate(dbName);
677
		if (managed) {
678
			jdbcTemplate.update("COMMENT ON DATABASE " + dbName + " IS 'isManaged'");
679
		} else {
680
			jdbcTemplate.update("COMMENT ON DATABASE " + dbName + " IS NULL");
681
		}
682
	}
683

    
684
	// public for testing
685
	public Date parseDate(final String date, String format) {
686
		if ((format == null) || format.isEmpty()) {
687
			format = SQL_DATE_FORMAT;
688
		}
689
		try {
690
			java.util.Date parsed = new SimpleDateFormat(format).parse(date);
691
			String ret = new SimpleDateFormat(SQL_DATE_FORMAT).format(parsed);
692
			return Date.valueOf(ret);
693
		} catch (ParseException e) {
694
			return null;
695
		}
696
	}
697

    
698
	@Required
699
	public void setVelocityEngine(final VelocityEngine velocityEngine) {
700
		this.velocityEngine = velocityEngine;
701
	}
702

    
703
	public String getDbPrefix() {
704
		return dbPrefix;
705
	}
706

    
707
	@Required
708
	public void setDbPrefix(final String dbPrefix) {
709
		this.dbPrefix = dbPrefix;
710
	}
711

    
712
	public DataSourceFactory getDataSourceFactory() {
713
		return dataSourceFactory;
714
	}
715

    
716
	@Required
717
	public void setDataSourceFactory(final DataSourceFactory dataSourceFactory) {
718
		this.dataSourceFactory = dataSourceFactory;
719
	}
720

    
721
	public JdbcTemplateFactory getJdbcTemplateFactory() {
722
		return jdbcTemplateFactory;
723
	}
724

    
725
	@Required
726
	public void setJdbcTemplateFactory(final JdbcTemplateFactory jdbcTemplateFactory) {
727
		this.jdbcTemplateFactory = jdbcTemplateFactory;
728
	}
729

    
730
	public TransactionTemplateFactory getTransactionTemplateFactory() {
731
		return transactionTemplateFactory;
732
	}
733

    
734
	@Required
735
	public void setTransactionTemplateFactory(final TransactionTemplateFactory transactionTemplateFactory) {
736
		this.transactionTemplateFactory = transactionTemplateFactory;
737
	}
738

    
739
	public int getNumbersOfRecordsForTransaction() {
740
		return numbersOfRecordsForTransaction;
741
	}
742

    
743
	@Required
744
	public void setNumbersOfRecordsForTransaction(final int numbersOfRecordsForTransaction) {
745
		this.numbersOfRecordsForTransaction = numbersOfRecordsForTransaction;
746
	}
747

    
748
	public String getDefaultDB() {
749
		return defaultDB;
750
	}
751

    
752
	@Required
753
	public void setDefaultDB(final String defaultDB) {
754
		this.defaultDB = defaultDB;
755
	}
756

    
757
	public class TableDates {
758

    
759
		private Date lastInsert;
760
		private Date lastUpdate;
761
		private Date lastDelete;
762

    
763
		public Date getLastInsert() {
764
			return lastInsert;
765
		}
766

    
767
		public void setLastInsert(final Date lastInsert) {
768
			this.lastInsert = lastInsert;
769
		}
770

    
771
		public Date getLastUpdate() {
772
			return lastUpdate;
773
		}
774

    
775
		public void setLastUpdate(final Date lastUpdate) {
776
			this.lastUpdate = lastUpdate;
777
		}
778

    
779
		public Date getLastDelete() {
780
			return lastDelete;
781
		}
782

    
783
		public void setLastDelete(final Date lastDelete) {
784
			this.lastDelete = lastDelete;
785
		}
786
	}
787

    
788
}
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