Examples of org.voltdb.catalog.Connector

org.voltdb.catalog.Connector
Export connector (ELT)

    /**
     * Return true if tableList includes at least one export-only table.
     */
    private boolean tableListIncludesExportOnly(List<Table> tableList) {
        // the single well-known connector
        Connector connector = m_catalogDb.getConnectors().get("0");


        // no export tables with out a connector
        if (connector == null) {
            return false;
        }


        CatalogMap<ConnectorTableInfo> tableinfo = connector.getTableinfo();


        // this loop is O(number-of-joins * number-of-export-tables)
        // which seems acceptable if not great. Probably faster than
        // re-hashing the export only tables for faster lookup.
        for (Table table : tableList) {

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            results.addRow("snapshotfrequency", snap_freq);
            results.addRow("snapshotretain", Integer.toString(snaps.getRetain()));
        }
        results.addRow("snapshotenabled", snap_enabled);


        Connector export_conn = database.getConnectors().get("0");
        String export_enabled = "false";
        if (export_conn != null && export_conn.getEnabled())
        {
            export_enabled = "true";
            results.addRow("exportoverflowpath", cluster.getExportoverflow());
        }
        results.addRow("export", export_enabled);

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            final String catalogContents =
                VoltCompilerUtils.readFileFromJarfile("/tmp/exportsettingstest.jar", "catalog.txt");
            final Catalog cat = new Catalog();
            cat.execute(catalogContents);


            Connector connector = cat.getClusters().get("cluster").getDatabases().
                get("database").getConnectors().get("0");
            assertFalse(connector.getEnabled());


        } finally {
            final File jar = new File("/tmp/exportsettingstest.jar");
            jar.delete();
        }

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            final String catalogContents =
                VoltCompilerUtils.readFileFromJarfile("/tmp/exportsettingstest.jar", "catalog.txt");
            final Catalog cat = new Catalog();
            cat.execute(catalogContents);
            CatalogUtil.compileDeployment(cat, project.getPathToDeployment(), true, false);
            Connector connector = cat.getClusters().get("cluster").getDatabases().
                get("database").getConnectors().get("0");
            assertTrue(connector.getEnabled());
            // Assert that all tables exist in the connector section of catalog
            assertNotNull(connector.getTableinfo().getIgnoreCase("a"));
            assertNotNull(connector.getTableinfo().getIgnoreCase("b"));
            assertNotNull(connector.getTableinfo().getIgnoreCase("e"));
            assertNotNull(connector.getTableinfo().getIgnoreCase("f"));
        } finally {
            final File jar = new File("/tmp/exportsettingstest.jar");
            jar.delete();
        }
    }

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                "create role r1;",
                "create procedure p1 allow r1, rx as select * from books;");
    }


    private ConnectorTableInfo getConnectorTableInfoFor( Database db, String tableName) {
        Connector connector =  db.getConnectors().get("0");
        if( connector == null) return null;
        return connector.getTableinfo().getIgnoreCase(tableName);
    }

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    /**
     * Return true if tableList includes at least one export table.
     */
    private boolean tableListIncludesExportOnly(List<Table> tableList) {
        // the single well-known connector
        Connector connector = m_catalogDb.getConnectors().get("0");


        // no export tables with out a connector
        if (connector == null) {
            return false;
        }


        CatalogMap<ConnectorTableInfo> tableinfo = connector.getTableinfo();


        // this loop is O(number-of-joins * number-of-export-tables)
        // which seems acceptable if not great. Probably faster than
        // re-hashing the export only tables for faster lookup.
        for (Table table : tableList) {

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            HostMessenger messenger,
            List<Integer> partitions)
            throws ExportManager.SetupException
    {
        ExportManager em = new ExportManager(myHostId, catalogContext, messenger, partitions);
        Connector connector = getConnector(catalogContext);


        m_self = em;
        if (connector != null && connector.getEnabled() == true) {
            em.createInitialExportProcessor(catalogContext, connector, true, partitions, isRejoin);
        }
    }

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    }


    private static Connector getConnector(CatalogContext catalogContext) {
        final Cluster cluster = catalogContext.catalog.getClusters().get("cluster");
        final Database db = cluster.getDatabases().get("database");
        final Connector conn= db.getConnectors().get("0");
        return conn;
    }

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    throws ExportManager.SetupException
    {
        m_hostId = myHostId;
        m_messenger = messenger;
        final Cluster cluster = catalogContext.catalog.getClusters().get("cluster");
        final Connector conn = getConnector(catalogContext);


        if (conn == null) {
            exportLog.info("System is not using any export functionality.");
            return;
        }


        if (conn.getEnabled() == false) {
            exportLog.info("Export is disabled by user configuration.");
            return;
        }


        updateProcessorConfig(conn);


        exportLog.info(String.format("Export is enabled and can overflow to %s.", cluster.getExportoverflow()));


        m_loaderClass = conn.getLoaderclass();
    }

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    public synchronized void updateCatalog(CatalogContext catalogContext, List<Integer> partitions)
    {
        final Cluster cluster = catalogContext.catalog.getClusters().get("cluster");
        final Database db = cluster.getDatabases().get("database");
        final Connector conn= db.getConnectors().get("0");
        if (conn == null || !conn.getEnabled()) {
            m_loaderClass = null;
            return;
        }


        m_loaderClass = conn.getLoaderclass();
        updateProcessorConfig(conn);


        File exportOverflowDirectory = new File(catalogContext.cluster.getExportoverflow());


        ExportGeneration newGeneration = null;

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Related Classes of org.voltdb.catalog.Connector

org.voltdb.compiler.TestVoltCompiler

org.voltdb.export.ExportManager

org.voltdb.planner.PlanAssembler

org.voltdb.sysprocs.SystemInformation

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