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org.apache.solr.client.solrj.io.sql.DatabaseMetaDataImpl Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.client.solrj.io.sql;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.ResultSet;
import java.sql.RowIdLifetime;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Set;
import org.apache.solr.client.solrj.SolrClient;
import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.impl.CloudSolrClient;
import org.apache.solr.client.solrj.impl.HttpSolrClient.Builder;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.common.util.SimpleOrderedMap;
class DatabaseMetaDataImpl implements DatabaseMetaData {
private final ConnectionImpl connection;
private final Statement connectionStatement;
public DatabaseMetaDataImpl(ConnectionImpl connection, Statement connectionStatement) {
this.connection = connection;
this.connectionStatement = connectionStatement;
}
private int getVersionPart(String version, int part) {
// TODO Is there a better way to do this? Reuse code from elsewhere?
// Gets the parts of the Solr version. If fail then just return 0.
if (version != null) {
try {
String[] versionParts = version.split("\\.", 3);
return Integer.parseInt(versionParts[part]);
} catch (Throwable e) {
return 0;
}
} else {
return 0;
}
}
@Override
public boolean allProceduresAreCallable() throws SQLException {
return false;
}
@Override
public boolean allTablesAreSelectable() throws SQLException {
return false;
}
@Override
public String getURL() throws SQLException {
return this.connection.getUrl();
}
@Override
public String getUserName() throws SQLException {
return null;
}
@Override
public boolean isReadOnly() throws SQLException {
return false;
}
@Override
public boolean nullsAreSortedHigh() throws SQLException {
return false;
}
@Override
public boolean nullsAreSortedLow() throws SQLException {
return false;
}
@Override
public boolean nullsAreSortedAtStart() throws SQLException {
return false;
}
@Override
public boolean nullsAreSortedAtEnd() throws SQLException {
return false;
}
@Override
public String getDatabaseProductName() throws SQLException {
return "Apache Solr";
}
@Override
public String getDatabaseProductVersion() throws SQLException {
// Returns the version for the first live node in the Solr cluster.
SolrQuery sysQuery = new SolrQuery();
sysQuery.setRequestHandler("/admin/info/system");
CloudSolrClient cloudSolrClient = this.connection.getClient();
Set liveNodes = cloudSolrClient.getZkStateReader().getClusterState().getLiveNodes();
SolrClient solrClient = null;
for (String node : liveNodes) {
try {
String nodeURL = cloudSolrClient.getZkStateReader().getBaseUrlForNodeName(node);
solrClient = new Builder(nodeURL).build();
QueryResponse rsp = solrClient.query(sysQuery);
return String.valueOf(((SimpleOrderedMap) rsp.getResponse().get("lucene")).get("solr-spec-version"));
} catch (SolrServerException | IOException ignore) {
return "";
} finally {
if (solrClient != null) {
try {
solrClient.close();
} catch (IOException ignore) {
// Don't worry about failing to close the Solr client
}
}
}
}
// If no version found just return empty string
return "";
}
@Override
public int getDatabaseMajorVersion() throws SQLException {
return getVersionPart(this.getDatabaseProductVersion(), 0);
}
@Override
public int getDatabaseMinorVersion() throws SQLException {
return getVersionPart(this.getDatabaseProductVersion(), 1);
}
@Override
public String getDriverName() throws SQLException {
return this.getClass().getPackage().getSpecificationTitle();
}
@Override
public String getDriverVersion() throws SQLException {
return this.getClass().getPackage().getSpecificationVersion();
}
@Override
public int getDriverMajorVersion() {
try {
return getVersionPart(this.getDriverVersion(), 0);
} catch (SQLException e) {
return 0;
}
}
@Override
public int getDriverMinorVersion() {
try {
return getVersionPart(this.getDriverVersion(), 1);
} catch (SQLException e) {
return 0;
}
}
@Override
public boolean usesLocalFiles() throws SQLException {
return false;
}
@Override
public boolean usesLocalFilePerTable() throws SQLException {
return false;
}
@Override
public boolean supportsMixedCaseIdentifiers() throws SQLException {
return false;
}
@Override
public boolean storesUpperCaseIdentifiers() throws SQLException {
return false;
}
@Override
public boolean storesLowerCaseIdentifiers() throws SQLException {
return false;
}
@Override
public boolean storesMixedCaseIdentifiers() throws SQLException {
return false;
}
@Override
public boolean supportsMixedCaseQuotedIdentifiers() throws SQLException {
return false;
}
@Override
public boolean storesUpperCaseQuotedIdentifiers() throws SQLException {
return false;
}
@Override
public boolean storesLowerCaseQuotedIdentifiers() throws SQLException {
return false;
}
@Override
public boolean storesMixedCaseQuotedIdentifiers() throws SQLException {
return false;
}
@Override
public String getIdentifierQuoteString() throws SQLException {
return null;
}
@Override
public String getSQLKeywords() throws SQLException {
return null;
}
@Override
public String getNumericFunctions() throws SQLException {
return null;
}
@Override
public String getStringFunctions() throws SQLException {
return null;
}
@Override
public String getSystemFunctions() throws SQLException {
return null;
}
@Override
public String getTimeDateFunctions() throws SQLException {
return null;
}
@Override
public String getSearchStringEscape() throws SQLException {
return null;
}
@Override
public String getExtraNameCharacters() throws SQLException {
return null;
}
@Override
public boolean supportsAlterTableWithAddColumn() throws SQLException {
return false;
}
@Override
public boolean supportsAlterTableWithDropColumn() throws SQLException {
return false;
}
@Override
public boolean supportsColumnAliasing() throws SQLException {
return false;
}
@Override
public boolean nullPlusNonNullIsNull() throws SQLException {
return false;
}
@Override
public boolean supportsConvert() throws SQLException {
return false;
}
@Override
public boolean supportsConvert(int fromType, int toType) throws SQLException {
return false;
}
@Override
public boolean supportsTableCorrelationNames() throws SQLException {
return false;
}
@Override
public boolean supportsDifferentTableCorrelationNames() throws SQLException {
return false;
}
@Override
public boolean supportsExpressionsInOrderBy() throws SQLException {
return false;
}
@Override
public boolean supportsOrderByUnrelated() throws SQLException {
return false;
}
@Override
public boolean supportsGroupBy() throws SQLException {
return false;
}
@Override
public boolean supportsGroupByUnrelated() throws SQLException {
return false;
}
@Override
public boolean supportsGroupByBeyondSelect() throws SQLException {
return false;
}
@Override
public boolean supportsLikeEscapeClause() throws SQLException {
return false;
}
@Override
public boolean supportsMultipleResultSets() throws SQLException {
return false;
}
@Override
public boolean supportsMultipleTransactions() throws SQLException {
return false;
}
@Override
public boolean supportsNonNullableColumns() throws SQLException {
return false;
}
@Override
public boolean supportsMinimumSQLGrammar() throws SQLException {
return false;
}
@Override
public boolean supportsCoreSQLGrammar() throws SQLException {
return false;
}
@Override
public boolean supportsExtendedSQLGrammar() throws SQLException {
return false;
}
@Override
public boolean supportsANSI92EntryLevelSQL() throws SQLException {
return false;
}
@Override
public boolean supportsANSI92IntermediateSQL() throws SQLException {
return false;
}
@Override
public boolean supportsANSI92FullSQL() throws SQLException {
return false;
}
@Override
public boolean supportsIntegrityEnhancementFacility() throws SQLException {
return false;
}
@Override
public boolean supportsOuterJoins() throws SQLException {
return false;
}
@Override
public boolean supportsFullOuterJoins() throws SQLException {
return false;
}
@Override
public boolean supportsLimitedOuterJoins() throws SQLException {
return false;
}
@Override
public String getSchemaTerm() throws SQLException {
return null;
}
@Override
public String getProcedureTerm() throws SQLException {
return null;
}
@Override
public String getCatalogTerm() throws SQLException {
return null;
}
@Override
public boolean isCatalogAtStart() throws SQLException {
return false;
}
@Override
public String getCatalogSeparator() throws SQLException {
return null;
}
@Override
public boolean supportsSchemasInDataManipulation() throws SQLException {
return false;
}
@Override
public boolean supportsSchemasInProcedureCalls() throws SQLException {
return false;
}
@Override
public boolean supportsSchemasInTableDefinitions() throws SQLException {
return false;
}
@Override
public boolean supportsSchemasInIndexDefinitions() throws SQLException {
return false;
}
@Override
public boolean supportsSchemasInPrivilegeDefinitions() throws SQLException {
return false;
}
@Override
public boolean supportsCatalogsInDataManipulation() throws SQLException {
return false;
}
@Override
public boolean supportsCatalogsInProcedureCalls() throws SQLException {
return false;
}
@Override
public boolean supportsCatalogsInTableDefinitions() throws SQLException {
return false;
}
@Override
public boolean supportsCatalogsInIndexDefinitions() throws SQLException {
return false;
}
@Override
public boolean supportsCatalogsInPrivilegeDefinitions() throws SQLException {
return false;
}
@Override
public boolean supportsPositionedDelete() throws SQLException {
return false;
}
@Override
public boolean supportsPositionedUpdate() throws SQLException {
return false;
}
@Override
public boolean supportsSelectForUpdate() throws SQLException {
return false;
}
@Override
public boolean supportsStoredProcedures() throws SQLException {
return false;
}
@Override
public boolean supportsSubqueriesInComparisons() throws SQLException {
return false;
}
@Override
public boolean supportsSubqueriesInExists() throws SQLException {
return false;
}
@Override
public boolean supportsSubqueriesInIns() throws SQLException {
return false;
}
@Override
public boolean supportsSubqueriesInQuantifieds() throws SQLException {
return false;
}
@Override
public boolean supportsCorrelatedSubqueries() throws SQLException {
return false;
}
@Override
public boolean supportsUnion() throws SQLException {
return false;
}
@Override
public boolean supportsUnionAll() throws SQLException {
return false;
}
@Override
public boolean supportsOpenCursorsAcrossCommit() throws SQLException {
return false;
}
@Override
public boolean supportsOpenCursorsAcrossRollback() throws SQLException {
return false;
}
@Override
public boolean supportsOpenStatementsAcrossCommit() throws SQLException {
return false;
}
@Override
public boolean supportsOpenStatementsAcrossRollback() throws SQLException {
return false;
}
@Override
public int getMaxBinaryLiteralLength() throws SQLException {
return 0;
}
@Override
public int getMaxCharLiteralLength() throws SQLException {
return 0;
}
@Override
public int getMaxColumnNameLength() throws SQLException {
return 0;
}
@Override
public int getMaxColumnsInGroupBy() throws SQLException {
return 0;
}
@Override
public int getMaxColumnsInIndex() throws SQLException {
return 0;
}
@Override
public int getMaxColumnsInOrderBy() throws SQLException {
return 0;
}
@Override
public int getMaxColumnsInSelect() throws SQLException {
return 0;
}
@Override
public int getMaxColumnsInTable() throws SQLException {
return 0;
}
@Override
public int getMaxConnections() throws SQLException {
return 0;
}
@Override
public int getMaxCursorNameLength() throws SQLException {
return 0;
}
@Override
public int getMaxIndexLength() throws SQLException {
return 0;
}
@Override
public int getMaxSchemaNameLength() throws SQLException {
return 0;
}
@Override
public int getMaxProcedureNameLength() throws SQLException {
return 0;
}
@Override
public int getMaxCatalogNameLength() throws SQLException {
return 0;
}
@Override
public int getMaxRowSize() throws SQLException {
return 0;
}
@Override
public boolean doesMaxRowSizeIncludeBlobs() throws SQLException {
return false;
}
@Override
public int getMaxStatementLength() throws SQLException {
return 0;
}
@Override
public int getMaxStatements() throws SQLException {
return 0;
}
@Override
public int getMaxTableNameLength() throws SQLException {
return 0;
}
@Override
public int getMaxTablesInSelect() throws SQLException {
return 0;
}
@Override
public int getMaxUserNameLength() throws SQLException {
return 0;
}
@Override
public int getDefaultTransactionIsolation() throws SQLException {
return 0;
}
@Override
public boolean supportsTransactions() throws SQLException {
return false;
}
@Override
public boolean supportsTransactionIsolationLevel(int level) throws SQLException {
return false;
}
@Override
public boolean supportsDataDefinitionAndDataManipulationTransactions() throws SQLException {
return false;
}
@Override
public boolean supportsDataManipulationTransactionsOnly() throws SQLException {
return false;
}
@Override
public boolean dataDefinitionCausesTransactionCommit() throws SQLException {
return false;
}
@Override
public boolean dataDefinitionIgnoredInTransactions() throws SQLException {
return false;
}
@Override
public ResultSet getProcedures(String catalog, String schemaPattern, String procedureNamePattern) throws SQLException {
return null;
}
@Override
public ResultSet getProcedureColumns(String catalog, String schemaPattern, String procedureNamePattern, String columnNamePattern) throws SQLException {
return null;
}
@Override
public ResultSet getTables(String catalog, String schemaPattern, String tableNamePattern, String[] types) throws SQLException {
return this.connectionStatement.executeQuery("select TABLE_CAT, TABLE_SCHEM, TABLE_NAME, TABLE_TYPE, REMARKS from _TABLES_");
}
@Override
public ResultSet getSchemas() throws SQLException {
return this.connectionStatement.executeQuery("select TABLE_SCHEM, TABLE_CATALOG from _SCHEMAS_");
}
@Override
public ResultSet getCatalogs() throws SQLException {
return this.connectionStatement.executeQuery("select TABLE_CAT from _CATALOGS_");
}
@Override
public ResultSet getTableTypes() throws SQLException {
return null;
}
@Override
public ResultSet getColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern) throws SQLException {
return null;
}
@Override
public ResultSet getColumnPrivileges(String catalog, String schema, String table, String columnNamePattern) throws SQLException {
return null;
}
@Override
public ResultSet getTablePrivileges(String catalog, String schemaPattern, String tableNamePattern) throws SQLException {
return null;
}
@Override
public ResultSet getBestRowIdentifier(String catalog, String schema, String table, int scope, boolean nullable) throws SQLException {
return null;
}
@Override
public ResultSet getVersionColumns(String catalog, String schema, String table) throws SQLException {
return null;
}
@Override
public ResultSet getPrimaryKeys(String catalog, String schema, String table) throws SQLException {
return null;
}
@Override
public ResultSet getImportedKeys(String catalog, String schema, String table) throws SQLException {
return null;
}
@Override
public ResultSet getExportedKeys(String catalog, String schema, String table) throws SQLException {
return null;
}
@Override
public ResultSet getCrossReference(String parentCatalog, String parentSchema, String parentTable, String foreignCatalog, String foreignSchema, String foreignTable) throws SQLException {
return null;
}
@Override
public ResultSet getTypeInfo() throws SQLException {
throw new UnsupportedOperationException();
}
@Override
public ResultSet getIndexInfo(String catalog, String schema, String table, boolean unique, boolean approximate) throws SQLException {
return null;
}
@Override
public boolean supportsResultSetType(int type) throws SQLException {
return false;
}
@Override
public boolean supportsResultSetConcurrency(int type, int concurrency) throws SQLException {
return false;
}
@Override
public boolean ownUpdatesAreVisible(int type) throws SQLException {
return false;
}
@Override
public boolean ownDeletesAreVisible(int type) throws SQLException {
return false;
}
@Override
public boolean ownInsertsAreVisible(int type) throws SQLException {
return false;
}
@Override
public boolean othersUpdatesAreVisible(int type) throws SQLException {
return false;
}
@Override
public boolean othersDeletesAreVisible(int type) throws SQLException {
return false;
}
@Override
public boolean othersInsertsAreVisible(int type) throws SQLException {
return false;
}
@Override
public boolean updatesAreDetected(int type) throws SQLException {
return false;
}
@Override
public boolean deletesAreDetected(int type) throws SQLException {
return false;
}
@Override
public boolean insertsAreDetected(int type) throws SQLException {
return false;
}
@Override
public boolean supportsBatchUpdates() throws SQLException {
return false;
}
@Override
public ResultSet getUDTs(String catalog, String schemaPattern, String typeNamePattern, int[] types) throws SQLException {
return null;
}
@Override
public Connection getConnection() throws SQLException {
return this.connection;
}
@Override
public boolean supportsSavepoints() throws SQLException {
return false;
}
@Override
public boolean supportsNamedParameters() throws SQLException {
return false;
}
@Override
public boolean supportsMultipleOpenResults() throws SQLException {
return false;
}
@Override
public boolean supportsGetGeneratedKeys() throws SQLException {
return false;
}
@Override
public ResultSet getSuperTypes(String catalog, String schemaPattern, String typeNamePattern) throws SQLException {
return null;
}
@Override
public ResultSet getSuperTables(String catalog, String schemaPattern, String tableNamePattern) throws SQLException {
return null;
}
@Override
public ResultSet getAttributes(String catalog, String schemaPattern, String typeNamePattern, String attributeNamePattern) throws SQLException {
return null;
}
@Override
public boolean supportsResultSetHoldability(int holdability) throws SQLException {
return false;
}
@Override
public int getResultSetHoldability() throws SQLException {
return 0;
}
@Override
public int getJDBCMajorVersion() throws SQLException {
return 4;
}
@Override
public int getJDBCMinorVersion() throws SQLException {
return 0;
}
@Override
public int getSQLStateType() throws SQLException {
return 0;
}
@Override
public boolean locatorsUpdateCopy() throws SQLException {
return false;
}
@Override
public boolean supportsStatementPooling() throws SQLException {
return false;
}
@Override
public RowIdLifetime getRowIdLifetime() throws SQLException {
return null;
}
@Override
public ResultSet getSchemas(String catalog, String schemaPattern) throws SQLException {
return null;
}
@Override
public boolean supportsStoredFunctionsUsingCallSyntax() throws SQLException {
return false;
}
@Override
public boolean autoCommitFailureClosesAllResultSets() throws SQLException {
return false;
}
@Override
public ResultSet getClientInfoProperties() throws SQLException {
return null;
}
@Override
public ResultSet getFunctions(String catalog, String schemaPattern, String functionNamePattern) throws SQLException {
return null;
}
@Override
public ResultSet getFunctionColumns(String catalog, String schemaPattern, String functionNamePattern, String columnNamePattern) throws SQLException {
return null;
}
@Override
public ResultSet getPseudoColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern) throws SQLException {
return null;
}
@Override
public boolean generatedKeyAlwaysReturned() throws SQLException {
return false;
}
@Override
public T unwrap(Class iface) throws SQLException {
return null;
}
@Override
public boolean isWrapperFor(Class iface) throws SQLException {
return false;
}
}
