Sync master into dev

README.md

@@ -86,7 +86,7 @@ The QA Company over the social networks
 ## About
 
 The qEndpoint is a highly scalable triple store with full-text and  [GeoSPARQL](https://www.ogc.org/standards/geosparql) support. It can be used as a standalone SPARQL endpoint, or as a dependency.
-The qEndpoint is for example used in [Kohesio](https://kohesio.ec.europa.eu/) where each interaction with the UI corresponds to an underlying SPARQL query on the qEndpoint.
+The qEndpoint is for example used in [Kohesio](https://kohesio.ec.europa.eu/) where each interaction with the UI corresponds to an underlying SPARQL query on the qEndpoint. Also qEndpoint is part of [QAnswer](https://qanswer.ai) enabeling question answering over RDF Graphs. 
 
 ### Built With
 

pom.xml

@@ -9,7 +9,7 @@
 
     <groupId>com.the-qa-company</groupId>
     <artifactId>qendpoint-parent</artifactId>
-    <version>1.15.0</version>
+    <version>1.15.6</version>
 
     <packaging>pom</packaging>
 

qendpoint-backend/pom.xml

@@ -4,7 +4,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>qendpoint-backend</artifactId>
-    <version>1.15.0</version>
+    <version>1.15.6</version>
 
     <packaging>jar</packaging>
 
@@ -15,7 +15,7 @@
     <parent>
         <groupId>com.the-qa-company</groupId>
         <artifactId>qendpoint-parent</artifactId>
-        <version>1.15.0</version>
+        <version>1.15.6</version>
     </parent>
 
     <licenses>

qendpoint-cli/pom.xml

@@ -2,7 +2,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>qendpoint-cli</artifactId>
-    <version>1.15.0</version>
+    <version>1.15.6</version>
 
     <name>qendpoint package</name>
     <description>Package of the qendpoint.</description>
@@ -11,7 +11,7 @@
     <parent>
         <groupId>com.the-qa-company</groupId>
         <artifactId>qendpoint-parent</artifactId>
-        <version>1.15.0</version>
+        <version>1.15.6</version>
     </parent>
 
     <dependencies>

qendpoint-core/pom.xml

@@ -4,7 +4,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>qendpoint-core</artifactId>
-    <version>1.15.0</version>
+    <version>1.15.6</version>
 
     <packaging>jar</packaging>
 
@@ -27,7 +27,7 @@
     <parent>
         <groupId>com.the-qa-company</groupId>
         <artifactId>qendpoint-parent</artifactId>
-        <version>1.15.0</version>
+        <version>1.15.6</version>
     </parent>
 
     <licenses>

qendpoint-core/src/main/java/com/the_qa_company/qendpoint/core/dictionary/Dictionary.java

@@ -134,6 +134,14 @@ default boolean supportsLanguageOfId() {
 		return false;
 	}
 
+	/**
+	 * @return if the dictionary is an MSD. if so, {@link #getObjects()} can't
+	 *         be used and the {@link #getAllObjects()} method should be used.
+	 */
+	default boolean isMultiSectionDictionary() {
+		return false;
+	}
+
 	/**
 	 * Returns whether the dictionary supports graphs
 	 *

qendpoint-core/src/main/java/com/the_qa_company/qendpoint/core/dictionary/impl/MultipleBaseDictionary.java

@@ -375,6 +375,11 @@ public void reset() {
 		}
 	}
 
+	@Override
+	public boolean isMultiSectionDictionary() {
+		return true;
+	}
+
 	@Override
 	public OptimizedExtractor createOptimizedMapExtractor() {
 		return new MultDictionaryPFCOptimizedExtractor(this);

qendpoint-core/src/main/java/com/the_qa_company/qendpoint/core/dictionary/impl/MultipleLangBaseDictionary.java

@@ -528,6 +528,11 @@ public OptimizedExtractor createOptimizedMapExtractor() {
 		return new MultipleSectionDictionaryLangPFCOptimizedExtractor(this);
 	}
 
+	@Override
+	public boolean isMultiSectionDictionary() {
+		return true;
+	}
+
 	public int getObjectsSectionCount() {
 		return objectIdLocationsSec.length;
 	}

qendpoint-core/src/main/java/com/the_qa_company/qendpoint/core/exceptions/SignatureIOException.java

@@ -0,0 +1,20 @@
+package com.the_qa_company.qendpoint.core.exceptions;
+
+import java.io.IOException;
+
+public class SignatureIOException extends IOException {
+	public SignatureIOException() {
+	}
+
+	public SignatureIOException(String message) {
+		super(message);
+	}
+
+	public SignatureIOException(String message, Throwable cause) {
+		super(message, cause);
+	}
+
+	public SignatureIOException(Throwable cause) {
+		super(cause);
+	}
+}

qendpoint-core/src/main/java/com/the_qa_company/qendpoint/core/tools/HDTVerify.java

@@ -4,7 +4,6 @@
 import com.beust.jcommander.Parameter;
 import com.beust.jcommander.internal.Lists;
 import com.the_qa_company.qendpoint.core.dictionary.DictionarySection;
-import com.the_qa_company.qendpoint.core.dictionary.impl.MultipleBaseDictionary;
 import com.the_qa_company.qendpoint.core.exceptions.NotFoundException;
 import com.the_qa_company.qendpoint.core.hdt.HDT;
 import com.the_qa_company.qendpoint.core.hdt.HDTManager;
@@ -237,7 +236,7 @@ public void exec() throws Throwable {
 					try (HDT hdt = hdtl) {
 						boolean error;
 						long count = 0;
-						if (hdt.getDictionary() instanceof MultipleBaseDictionary) {
+						if (hdt.getDictionary().isMultiSectionDictionary()) {
 							colorTool.log("Checking subject entries");
 							error = checkDictionarySectionOrder(binary, unicode, colorTool, "subject",
 									hdt.getDictionary().getSubjects(), console);
@@ -279,6 +278,12 @@ public void exec() throws Throwable {
 									hdt.getDictionary().getShared(), console);
 							count += hdt.getDictionary().getShared().getNumberOfElements();
 						}
+						if (hdt.getDictionary().supportGraphs()) {
+							colorTool.log("Checking graph entries");
+							error |= checkDictionarySectionOrder(binary, unicode, colorTool, "graph",
+									hdt.getDictionary().getGraphs(), console);
+							count += hdt.getDictionary().getGraphs().getNumberOfElements();
+						}
 
 						if (error) {
 							colorTool.error("This HDT isn't valid", true);

qendpoint-core/src/main/java/com/the_qa_company/qendpoint/core/triples/impl/BitmapTriples.java

@@ -33,6 +33,7 @@
 import com.the_qa_company.qendpoint.core.dictionary.Dictionary;
 import com.the_qa_company.qendpoint.core.enums.TripleComponentOrder;
 import com.the_qa_company.qendpoint.core.exceptions.IllegalFormatException;
+import com.the_qa_company.qendpoint.core.exceptions.SignatureIOException;
 import com.the_qa_company.qendpoint.core.hdt.HDTVocabulary;
 import com.the_qa_company.qendpoint.core.hdt.impl.HDTDiskImporter;
 import com.the_qa_company.qendpoint.core.hdt.impl.diskindex.DiskIndexSort;
@@ -1347,7 +1348,7 @@ public void syncOtherIndexes(Path fileLocation, HDTOptions spec, ProgressListene
 							idx.getOrder());
 				}
 				IOUtil.closeQuietly(old);
-			} catch (NoSuchFileException ignore) {
+			} catch (NoSuchFileException | SignatureIOException ignore) {
 				// no index with this name
 				if (!askedOrders.contains(order)) {
 					continue; // not asked by the user, we can ignore

qendpoint-core/src/main/java/com/the_qa_company/qendpoint/core/triples/impl/BitmapTriplesIndexFile.java

@@ -11,6 +11,7 @@
 import com.the_qa_company.qendpoint.core.compact.sequence.SequenceLog64BigDisk;
 import com.the_qa_company.qendpoint.core.enums.TripleComponentOrder;
 import com.the_qa_company.qendpoint.core.exceptions.IllegalFormatException;
+import com.the_qa_company.qendpoint.core.exceptions.SignatureIOException;
 import com.the_qa_company.qendpoint.core.iterator.utils.AsyncIteratorFetcher;
 import com.the_qa_company.qendpoint.core.iterator.utils.ExceptionIterator;
 import com.the_qa_company.qendpoint.core.iterator.utils.MapIterator;
@@ -96,7 +97,8 @@ public static BitmapTriplesIndex map(Path file, FileChannel channel, BitmapTripl
 
 			long currentSignature = signature(triples);
 			if (signature != currentSignature) {
-				throw new IOException(format("Wrong signature for file 0x%x != 0x%x", signature, currentSignature));
+				throw new SignatureIOException(
+						format("Wrong signature for file 0x%x != 0x%x", signature, currentSignature));
 			}
 		}
 

qendpoint-core/src/test/java/com/the_qa_company/qendpoint/core/triples/impl/BitmapTriplesIndexFileTest.java

@@ -0,0 +1,74 @@
+package com.the_qa_company.qendpoint.core.triples.impl;
+
+import com.the_qa_company.qendpoint.core.enums.TripleComponentOrder;
+import com.the_qa_company.qendpoint.core.exceptions.ParserException;
+import com.the_qa_company.qendpoint.core.hdt.HDTManager;
+import com.the_qa_company.qendpoint.core.hdt.HDTVersion;
+import com.the_qa_company.qendpoint.core.listener.ProgressListener;
+import com.the_qa_company.qendpoint.core.options.HDTOptions;
+import com.the_qa_company.qendpoint.core.options.HDTOptionsKeys;
+import com.the_qa_company.qendpoint.core.util.LargeFakeDataSetStreamSupplier;
+import com.the_qa_company.qendpoint.core.util.crc.CRC32;
+import org.apache.commons.io.file.PathUtils;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import static org.junit.Assert.*;
+
+public class BitmapTriplesIndexFileTest {
+
+	@Rule
+	public TemporaryFolder tempDir = TemporaryFolder.builder().assureDeletion().build();
+
+	public long crc32(byte[] data) {
+		CRC32 crc = new CRC32();
+		crc.update(data, 0, data.length);
+		return crc.getValue();
+	}
+
+	@Test
+	public void genTest() throws IOException, ParserException {
+		Path root = tempDir.newFolder().toPath();
+
+		HDTOptions spec = HDTOptions.of(
+				HDTOptionsKeys.BITMAPTRIPLES_INDEX_OTHERS, "spo,ops",
+				HDTOptionsKeys.BITMAPTRIPLES_INDEX_NO_FOQ, true
+		);
+		try {
+			Path hdtPath = root.resolve("temp.hdt");
+
+			LargeFakeDataSetStreamSupplier supplier = LargeFakeDataSetStreamSupplier
+					.createSupplierWithMaxTriples(1000, 10)
+					.withMaxLiteralSize(50)
+					.withMaxElementSplit(20);
+
+			supplier.createAndSaveFakeHDT(spec, hdtPath);
+
+			// should load
+			HDTManager.mapIndexedHDT(hdtPath, spec, ProgressListener.ignore()).close();
+			assertTrue("ops index doesn't exist", Files.exists(BitmapTriplesIndexFile.getIndexPath(hdtPath, TripleComponentOrder.OPS)));
+			assertFalse("foq index exists", Files.exists(hdtPath.resolveSibling(hdtPath.getFileName() + HDTVersion.get_index_suffix("-"))));
+
+			long crcold = crc32(Files.readAllBytes(hdtPath));
+
+			Path hdtPath2 = root.resolve("temp2.hdt");
+
+			Files.move(hdtPath, hdtPath2);
+
+			supplier.createAndSaveFakeHDT(spec, hdtPath);
+			// should erase the previous index and generate another one
+			HDTManager.mapIndexedHDT(hdtPath, spec, ProgressListener.ignore()).close();
+
+			long crcnew = crc32(Files.readAllBytes(hdtPath));
+
+			assertNotEquals("files are the same", crcold, crcnew);
+		} finally {
+			PathUtils.deleteDirectory(root);
+		}
+	}
+}

qendpoint-store/pom.xml

@@ -3,7 +3,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>qendpoint</artifactId>
-    <version>1.15.0</version>
+    <version>1.15.6</version>
 
     <packaging>jar</packaging>
 
@@ -13,7 +13,7 @@
     <parent>
         <groupId>com.the-qa-company</groupId>
         <artifactId>qendpoint-parent</artifactId>
-        <version>1.15.0</version>
+        <version>1.15.6</version>
     </parent>
 
     <licenses>

qendpoint-store/src/main/java/com/the_qa_company/qendpoint/compiler/SparqlRepository.java

@@ -11,16 +11,10 @@
 import com.the_qa_company.qendpoint.utils.sail.SourceSailConnectionWrapper;
 import jakarta.json.Json;
 import jakarta.json.stream.JsonGenerator;
-import org.eclipse.rdf4j.model.Literal;
 import org.eclipse.rdf4j.model.Namespace;
 import org.eclipse.rdf4j.model.Statement;
-import org.eclipse.rdf4j.model.ValueFactory;
-import org.eclipse.rdf4j.model.base.CoreDatatype;
-import org.eclipse.rdf4j.model.impl.SimpleValueFactory;
 import org.eclipse.rdf4j.model.util.Values;
 import org.eclipse.rdf4j.query.*;
-import org.eclipse.rdf4j.query.algebra.Var;
-import org.eclipse.rdf4j.query.algebra.helpers.AbstractQueryModelVisitor;
 import org.eclipse.rdf4j.query.explanation.Explanation;
 import org.eclipse.rdf4j.query.explanation.GenericPlanNode;
 import org.eclipse.rdf4j.query.parser.*;
@@ -104,9 +98,6 @@ public CompiledSailOptions getOptions() {
 
 	/**
 	 * reindex all the lucene sails of this repository
-	 *
-	 * @throws Exception any exception returned by
-	 *                   {@link org.eclipse.rdf4j.sail.lucene.LuceneSail#reindex()}
 	 */
 	public void reindexLuceneSails() {
 		compiledSail.reindexLuceneSails();
@@ -759,10 +750,36 @@ private ClosableResult<?> execute0(RepositoryConnection customConnection, String
 	 * @param out         the output stream, can be null
 	 */
 	public void executeUpdate(String sparqlQuery, int timeout, OutputStream out) {
+		executeUpdate(sparqlQuery, timeout, out, null);
+
+	}
+
+	/**
+	 * execute a sparql update query
+	 *
+	 * @param sparqlQuery      the query
+	 * @param timeout          query timeout
+	 * @param out              the output stream, can be null
+	 * @param customConnection custom connection to use
+	 */
+	public void executeUpdate(String sparqlQuery, int timeout, OutputStream out,
+			RepositoryConnection customConnection) {
 		// logger.info("Running update query:"+sparqlQuery);
 		sparqlQuery = applyPrefixes(sparqlQuery);
 		sparqlQuery = Pattern.compile("MINUS \\{(?s).*?}\\n {2}}").matcher(sparqlQuery).replaceAll("");
-		try (SailRepositoryConnection connection = repository.getConnection()) {
+
+		RepositoryConnection connectionCloseable;
+		RepositoryConnection connection;
+
+		if (customConnection == null) {
+			connection = repository.getConnection();
+			connectionCloseable = connection;
+		} else {
+			connectionCloseable = null;
+			connection = customConnection;
+		}
+
+		try (connectionCloseable) {
 			connection.setParserConfig(new ParserConfig().set(BasicParserSettings.VERIFY_URI_SYNTAX, false));
 
 			Update preparedUpdate = connection.prepareUpdate(QueryLanguage.SPARQL, sparqlQuery);

qendpoint-store/src/main/java/com/the_qa_company/qendpoint/store/EndpointStore.java

@@ -85,6 +85,10 @@ public class EndpointStore extends AbstractNotifyingSail {
 	 * enable the merge join, default true
 	 */
 	public static final String OPTION_QENDPOINT_MERGE_JOIN = "qendpoint.mergejoin";
+	/**
+	 * disable delete bitmaps, default false
+	 */
+	public static final String OPTION_QENDPOINT_DELETE_DISABLE = "qendpoint.delete.disable";
 	private static final AtomicLong ENDPOINT_DEBUG_ID_GEN = new AtomicLong();
 	private static final Logger logger = LoggerFactory.getLogger(EndpointStore.class);
 	private final long debugId;
@@ -113,6 +117,7 @@ public class EndpointStore extends AbstractNotifyingSail {
 	// setting to put the delete map only in memory, i.e don't write to disk
 	private final boolean inMemDeletes;
 	private final boolean loadIntoMemory;
+	private final boolean deleteDisabled;
 
 	// bitmaps used to mark if the subject, predicate, object elements in HDT
 	// are used in the rdf4j delta store
@@ -175,6 +180,7 @@ public EndpointStore(EndpointFiles files, HDTOptions spec, boolean inMemDeletes,
 			throws IOException {
 		// load HDT file
 		this.spec = (spec = HDTOptions.ofNullable(spec));
+		deleteDisabled = spec.getBoolean(OPTION_QENDPOINT_DELETE_DISABLE, false);
 		validOrders = getHDTSpec().getEnumSet(HDTOptionsKeys.BITMAPTRIPLES_INDEX_OTHERS, TripleComponentOrder.class);
 		validOrders.add(TripleComponentOrder.SPO); // we need at least SPO
 
@@ -1215,6 +1221,10 @@ public long getGraphsCount(HDT hdt) {
 		return hdt.getDictionary().supportGraphs() ? hdt.getDictionary().getNgraphs() : 1;
 	}
 
+	public boolean isDeleteDisabled() {
+		return deleteDisabled;
+	}
+
 	public long getGraphsCount() {
 		return getGraphsCount(this.hdt);
 	}