Package org.exist.xquery

Examples of org.exist.xquery.XQuery

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            if(document instanceof BinaryDocument) {
                final DocumentMetadata metadata = document.getMetadata();
                if(metadata.getMimeType().equals(XQUERY_MIME_TYPE)){
           
                    //compile the query
                    final XQuery xquery = broker.getXQueryService();
                    final XQueryContext context = xquery.newContext(AccessContext.REST);
                    final Source source = new DBSource(broker, (BinaryDocument)document, true);

                    //set the module load path for any module imports that are relative
                    context.setModuleLoadPath(XmldbURI.EMBEDDED_SERVER_URI_PREFIX + ((XmldbURI)source.getKey()).removeLastSegment());
                   
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            transaction = transact.beginTransaction();
           
            checkIndex(broker, docs, "cha", 1);
            checkIndex(broker, docs, "le8", 1);

            XQuery xquery = broker.getXQueryService();
            assertNotNull(xquery);
            Sequence seq = xquery.execute("//item[ngram:contains(., 'cha')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
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            transaction = transact.beginTransaction();

            checkIndex(broker, docs, "cha", 1);
            checkIndex(broker, docs, "le8", 1);

            XQuery xquery = broker.getXQueryService();
            assertNotNull(xquery);
            Sequence seq = xquery.execute("//item[ngram:contains(., 'cha')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
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            Txn transaction = transact.beginTransaction();

            checkIndex(broker, docs, "cha", 1);
            checkIndex(broker, docs, "le8", 1);

            XQuery xquery = broker.getXQueryService();
            assertNotNull(xquery);
            Sequence seq = xquery.execute("//item[ngram:contains(., 'cha')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
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            Txn transaction = transact.beginTransaction();

            checkIndex(broker, docs, "cha", 1);
            checkIndex(broker, docs, "le8", 1);

            XQuery xquery = broker.getXQueryService();
            assertNotNull(xquery);
            Sequence seq = xquery.execute("//item[ngram:contains(., 'cha')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
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            Txn transaction = transact.beginTransaction();

            checkIndex(broker, docs, "cha", 1);
            checkIndex(broker, docs, "le8", 1);

            XQuery xquery = broker.getXQueryService();
            assertNotNull(xquery);
            Sequence seq = xquery.execute("//item[ngram:contains(., 'cha')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            XUpdateProcessor proc = new XUpdateProcessor(broker, docs, AccessContext.TEST);
            assertNotNull(proc);
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            broker.reindexCollection(XmldbURI.xmldbUriFor("/db"));

            checkIndex(broker, docs, "cha", 1);
            checkIndex(broker, docs, "le8", 1);
           
            XQuery xquery = broker.getXQueryService();
            assertNotNull(xquery);
            Sequence seq = xquery.execute("//item[ngram:contains(., 'cha')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            seq = xquery.execute("//section[ngram:contains(para, '123')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            seq = xquery.execute("//section[ngram:contains(para, '123')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            transact.commit(transaction);
        } catch (Exception e) {
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        try {
          broker = pool.get(pool.getSecurityManager().getSystemSubject());
            TransactionManager transact = pool.getTransactionManager();
            Txn transaction = transact.beginTransaction();

            XQuery xquery = broker.getXQueryService();
            assertNotNull(xquery);
            Sequence seq = xquery.execute("//item[ngram:contains(., 'cha')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            checkIndex(broker, docs, "cha", 1);
            checkIndex(broker, docs, "le8", 1);

            Collection root = broker.openCollection(TestConstants.TEST_COLLECTION_URI, Lock.WRITE_LOCK);
            assertNotNull(root);

            root.removeXMLResource(transaction, broker, XmldbURI.create("test_string.xml"));

            checkIndex(broker, docs, "cha", 0);

            seq = xquery.execute("//item[ngram:contains(., 'cha')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(0, seq.getItemCount());

            transact.commit(transaction);
        } catch (Exception e) {
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    public void testQuery() {
        DBBroker broker = null;
        try {
          broker = pool.get(pool.getSecurityManager().getSystemSubject());

            XQuery xquery = broker.getXQueryService();
            assertNotNull(xquery);
            Sequence seq = xquery.execute("//item[ngram:contains(., 'cha')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            seq = xquery.execute("//section[ngram:contains(*, '123')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            seq = xquery.execute("//section[ngram:contains(para, '123')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            seq = xquery.execute("//*[ngram:contains(., '567')]", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

        } catch (Exception e) {
            e.printStackTrace();
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    public void testIndexKeys() {
        DBBroker broker = null;
        try {
          broker = pool.get(pool.getSecurityManager().getSystemSubject());

            XQuery xquery = broker.getXQueryService();
            assertNotNull(xquery);
           
            Sequence seq = xquery.execute("util:index-key-occurrences(/test/item, 'cha', 'ngram-index')", null, AccessContext.TEST);
            //Sequence seq = xquery.execute("util:index-key-occurrences(/test/item, 'cha', 'org.exist.indexing.impl.NGramIndex')", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            seq = xquery.execute("util:index-key-occurrences(/test/item, 'le8', 'ngram-index')", null, AccessContext.TEST);
            //seq = xquery.execute("util:index-key-occurrences(/test/item, 'le8', 'org.exist.indexing.impl.NGramIndex')", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());

            seq = xquery.execute("util:index-key-documents(/test/item, 'le8', 'ngram-index')", null, AccessContext.TEST);
            //seq = xquery.execute("util:index-key-documents(/test/item, 'le8', 'org.exist.indexing.impl.NGramIndex')", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());
           
            seq = xquery.execute("util:index-key-documents(/test/item, 'le8', 'ngram-index')", null, AccessContext.TEST);
            //seq = xquery.execute("util:index-key-doucments(/test/item, 'le8', 'org.exist.indexing.impl.NGramIndex')", null, AccessContext.TEST);
            assertNotNull(seq);
            assertEquals(1, seq.getItemCount());
           
            String queryBody =
                "declare function local:callback($key as item(), $data as xs:int+)\n" +
                "as element()+ {\n" +
                "    <item>\n" +
                "        <key>{$key}</key>\n" +
                "        <frequency>{$data[1]}</frequency>\n" +
                "    </item>\n" +
                "};\n" +
                "\n";
           
            String query = queryBody + "util:index-keys(/test/item, \'\', util:function(xs:QName(\'local:callback\'), 2), 1000, 'ngram-index')";
            //String query = queryBody + "util:index-keys(/test/item, \'\', util:function(xs:QName(\'local:callback\'), 2), 1000, 'org.exist.indexing.impl.NGramIndex')";
            seq = xquery.execute(query, null, AccessContext.TEST);
            assertNotNull(seq);
            //TODO : check cardinality
            StringWriter out = new StringWriter();
            Properties props = new Properties();
            props.setProperty(OutputKeys.INDENT, "yes");
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