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/*
  Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved.

  The MySQL Connector/J is licensed under the terms of the GPLv2
  <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most MySQL Connectors.
  There are special exceptions to the terms and conditions of the GPLv2 as it is applied to
  this software, see the FOSS License Exception
  <http://www.mysql.com/about/legal/licensing/foss-exception.html>.

  This program is free software; you can redistribute it and/or modify it under the terms
  of the GNU General Public License as published by the Free Software Foundation; version 2
  of the License.

  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the GNU General Public License for more details.

  You should have received a copy of the GNU General Public License along with this
  program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth
  Floor, Boston, MA 02110-1301  USA

 */

package testsuite.simple;

import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Types;
import java.util.HashSet;
import java.util.List;
import java.util.Properties;
import java.util.Set;

import testsuite.BaseTestCase;

import com.mysql.jdbc.StringUtils;

/**
 * Tests DatabaseMetaData methods.
 */
public class MetadataTest extends BaseTestCase {
    /**
     * Creates a new MetadataTest object.
     * 
     * @param name
     */
    public MetadataTest(String name) {
        super(name);
    }

    /**
     * Runs all test cases in this test suite
     * 
     * @param args
     */
    public static void main(String[] args) {
        junit.textui.TestRunner.run(MetadataTest.class);
    }

    @Override
    public void setUp() throws Exception {
        super.setUp();
    }

    public void testForeignKeys() throws SQLException {
        try {
            createTestTable();

            DatabaseMetaData dbmd = this.conn.getMetaData();
            this.rs = dbmd.getImportedKeys(null, null, "child");

            while (this.rs.next()) {
                String pkColumnName = this.rs.getString("PKCOLUMN_NAME");
                String fkColumnName = this.rs.getString("FKCOLUMN_NAME");
                assertTrue("Primary Key not returned correctly ('" + pkColumnName + "' != 'parent_id')", pkColumnName.equalsIgnoreCase("parent_id"));
                assertTrue("Foreign Key not returned correctly ('" + fkColumnName + "' != 'parent_id_fk')", fkColumnName.equalsIgnoreCase("parent_id_fk"));
            }

            this.rs.close();
            this.rs = dbmd.getExportedKeys(null, null, "parent");

            while (this.rs.next()) {
                String pkColumnName = this.rs.getString("PKCOLUMN_NAME");
                String fkColumnName = this.rs.getString("FKCOLUMN_NAME");
                String fkTableName = this.rs.getString("FKTABLE_NAME");
                assertTrue("Primary Key not returned correctly ('" + pkColumnName + "' != 'parent_id')", pkColumnName.equalsIgnoreCase("parent_id"));
                assertTrue("Foreign Key table not returned correctly for getExportedKeys ('" + fkTableName + "' != 'child')",
                        fkTableName.equalsIgnoreCase("child"));
                assertTrue("Foreign Key not returned correctly for getExportedKeys ('" + fkColumnName + "' != 'parent_id_fk')",
                        fkColumnName.equalsIgnoreCase("parent_id_fk"));
            }

            this.rs.close();

            this.rs = dbmd.getCrossReference(null, null, "cpd_foreign_3", null, null, "cpd_foreign_4");

            assertTrue(this.rs.next());

            String pkColumnName = this.rs.getString("PKCOLUMN_NAME");
            String pkTableName = this.rs.getString("PKTABLE_NAME");
            String fkColumnName = this.rs.getString("FKCOLUMN_NAME");
            String fkTableName = this.rs.getString("FKTABLE_NAME");
            String deleteAction = cascadeOptionToString(this.rs.getInt("DELETE_RULE"));
            String updateAction = cascadeOptionToString(this.rs.getInt("UPDATE_RULE"));

            assertEquals(pkColumnName, "cpd_foreign_1_id");
            assertEquals(pkTableName, "cpd_foreign_3");
            assertEquals(fkColumnName, "cpd_foreign_1_id");
            assertEquals(fkTableName, "cpd_foreign_4");
            assertEquals(deleteAction, "NO ACTION");
            assertEquals(updateAction, "CASCADE");

            this.rs.close();
            this.rs = null;
        } finally {
            if (this.rs != null) {
                this.rs.close();
                this.rs = null;
            }
            this.stmt.executeUpdate("DROP TABLE IF EXISTS child");
            this.stmt.executeUpdate("DROP TABLE IF EXISTS parent");
            this.stmt.executeUpdate("DROP TABLE IF EXISTS cpd_foreign_4");
            this.stmt.executeUpdate("DROP TABLE IF EXISTS cpd_foreign_3");
            this.stmt.executeUpdate("DROP TABLE IF EXISTS cpd_foreign_2");
            this.stmt.executeUpdate("DROP TABLE IF EXISTS cpd_foreign_1");
            this.stmt.executeUpdate("DROP TABLE IF EXISTS fktable2");
            this.stmt.executeUpdate("DROP TABLE IF EXISTS fktable1");
        }

    }

    public void testGetPrimaryKeys() throws SQLException {
        try {
            createTable("multikey", "(d INT NOT NULL, b INT NOT NULL, a INT NOT NULL, c INT NOT NULL, PRIMARY KEY (d, b, a, c))");
            DatabaseMetaData dbmd = this.conn.getMetaData();
            this.rs = dbmd.getPrimaryKeys(this.conn.getCatalog(), "", "multikey");

            short[] keySeqs = new short[4];
            String[] columnNames = new String[4];
            int i = 0;

            while (this.rs.next()) {
                this.rs.getString("TABLE_NAME");
                columnNames[i] = this.rs.getString("COLUMN_NAME");

                this.rs.getString("PK_NAME");
                keySeqs[i] = this.rs.getShort("KEY_SEQ");
                i++;
            }

            if ((keySeqs[0] != 3) && (keySeqs[1] != 2) && (keySeqs[2] != 4) && (keySeqs[4] != 1)) {
                fail("Keys returned in wrong order");
            }
        } finally {
            if (this.rs != null) {
                try {
                    this.rs.close();
                } catch (SQLException sqlEx) {
                    /* ignore */
                }
            }
        }
    }

    private static String cascadeOptionToString(int option) {
        switch (option) {
            case DatabaseMetaData.importedKeyCascade:
                return "CASCADE";

            case DatabaseMetaData.importedKeySetNull:
                return "SET NULL";

            case DatabaseMetaData.importedKeyRestrict:
                return "RESTRICT";

            case DatabaseMetaData.importedKeyNoAction:
                return "NO ACTION";
        }

        return "SET DEFAULT";
    }

    private void createTestTable() throws SQLException {
        //Needed for previous runs that did not clean-up
        this.stmt.executeUpdate("DROP TABLE IF EXISTS child");
        this.stmt.executeUpdate("DROP TABLE IF EXISTS parent");
        this.stmt.executeUpdate("DROP TABLE IF EXISTS multikey");
        this.stmt.executeUpdate("DROP TABLE IF EXISTS cpd_foreign_4");
        this.stmt.executeUpdate("DROP TABLE IF EXISTS cpd_foreign_3");
        this.stmt.executeUpdate("DROP TABLE IF EXISTS cpd_foreign_2");
        this.stmt.executeUpdate("DROP TABLE IF EXISTS cpd_foreign_1");
        this.stmt.executeUpdate("DROP TABLE IF EXISTS fktable2");
        this.stmt.executeUpdate("DROP TABLE IF EXISTS fktable1");

        createTable("parent", "(parent_id INT NOT NULL, PRIMARY KEY (parent_id))", "INNODB");
        createTable("child", "(child_id INT, parent_id_fk INT, INDEX par_ind (parent_id_fk), FOREIGN KEY (parent_id_fk) REFERENCES parent(parent_id)) ",
                "INNODB");

        // Test compound foreign keys
        try {
            createTable("cpd_foreign_1", "(id int(8) not null auto_increment primary key,name varchar(255) not null unique,key (id))", "InnoDB");
        } catch (SQLException sqlEx) {
            if (sqlEx.getMessage().indexOf("max key length") != -1) {
                createTable("cpd_foreign_1", "(id int(8) not null auto_increment primary key,name varchar(180) not null unique,key (id))", "InnoDB");
            }
        }

        createTable("cpd_foreign_2", "(id int(8) not null auto_increment primary key,key (id),name varchar(255)) ", "InnoDB");
        createTable("cpd_foreign_3", "(cpd_foreign_1_id int(8) not null,cpd_foreign_2_id int(8) not null,key(cpd_foreign_1_id),"
                + "key(cpd_foreign_2_id),primary key (cpd_foreign_1_id, cpd_foreign_2_id),"
                + "foreign key (cpd_foreign_1_id) references cpd_foreign_1(id),foreign key (cpd_foreign_2_id) references cpd_foreign_2(id)) ", "InnoDB");
        createTable("cpd_foreign_4", "(cpd_foreign_1_id int(8) not null,cpd_foreign_2_id int(8) not null,key(cpd_foreign_1_id),"
                + "key(cpd_foreign_2_id),primary key (cpd_foreign_1_id, cpd_foreign_2_id),foreign key (cpd_foreign_1_id, cpd_foreign_2_id) "
                + "references cpd_foreign_3(cpd_foreign_1_id, cpd_foreign_2_id) ON DELETE RESTRICT ON UPDATE CASCADE) ", "InnoDB");

        createTable("fktable1", "(TYPE_ID int not null, TYPE_DESC varchar(32), primary key(TYPE_ID))", "InnoDB");
        createTable("fktable2", "(KEY_ID int not null, COF_NAME varchar(32), PRICE float, TYPE_ID int, primary key(KEY_ID), "
                + "index(TYPE_ID), foreign key(TYPE_ID) references fktable1(TYPE_ID)) ", "InnoDB");
    }

    /**
     * Tests the implementation of metadata for views.
     * 
     * This test automatically detects whether or not the server it is running
     * against supports the creation of views.
     * 
     * @throws SQLException
     *             if the test fails.
     */
    public void testViewMetaData() throws SQLException {
        try {
            this.rs = this.conn.getMetaData().getTableTypes();

            while (this.rs.next()) {
                if ("VIEW".equalsIgnoreCase(this.rs.getString(1))) {

                    this.stmt.executeUpdate("DROP VIEW IF EXISTS vTestViewMetaData");
                    createTable("testViewMetaData", "(field1 INT)");
                    this.stmt.executeUpdate("CREATE VIEW vTestViewMetaData AS SELECT field1 FROM testViewMetaData");

                    ResultSet tablesRs = null;

                    try {
                        tablesRs = this.conn.getMetaData().getTables(this.conn.getCatalog(), null, "%ViewMetaData", new String[] { "TABLE", "VIEW" });
                        assertTrue(tablesRs.next());
                        assertTrue("testViewMetaData".equalsIgnoreCase(tablesRs.getString(3)));
                        assertTrue(tablesRs.next());
                        assertTrue("vTestViewMetaData".equalsIgnoreCase(tablesRs.getString(3)));

                    } finally {
                        if (tablesRs != null) {
                            tablesRs.close();
                        }
                    }

                    try {
                        tablesRs = this.conn.getMetaData().getTables(this.conn.getCatalog(), null, "%ViewMetaData", new String[] { "TABLE" });
                        assertTrue(tablesRs.next());
                        assertTrue("testViewMetaData".equalsIgnoreCase(tablesRs.getString(3)));
                        assertTrue(!tablesRs.next());
                    } finally {
                        if (tablesRs != null) {
                            tablesRs.close();
                        }
                    }
                    break;
                }
            }

        } finally {
            if (this.rs != null) {
                this.rs.close();
            }
            this.stmt.executeUpdate("DROP VIEW IF EXISTS vTestViewMetaData");
        }
    }

    /**
     * Tests detection of read-only fields when the server is 4.1.0 or newer.
     * 
     * @throws Exception
     *             if the test fails.
     */
    public void testRSMDIsReadOnly() throws Exception {
        try {
            this.rs = this.stmt.executeQuery("SELECT 1");

            ResultSetMetaData rsmd = this.rs.getMetaData();

            if (versionMeetsMinimum(4, 1)) {
                assertTrue(rsmd.isReadOnly(1));

                try {
                    createTable("testRSMDIsReadOnly", "(field1 INT)");
                    this.stmt.executeUpdate("INSERT INTO testRSMDIsReadOnly VALUES (1)");

                    this.rs = this.stmt.executeQuery("SELECT 1, field1 + 1, field1 FROM testRSMDIsReadOnly");
                    rsmd = this.rs.getMetaData();

                    assertTrue(rsmd.isReadOnly(1));
                    assertTrue(rsmd.isReadOnly(2));
                    assertTrue(!rsmd.isReadOnly(3));
                } finally {
                }
            } else {
                assertTrue(rsmd.isReadOnly(1) == false);
            }
        } finally {
            if (this.rs != null) {
                this.rs.close();
            }
        }
    }

    public void testBitType() throws Exception {
        if (versionMeetsMinimum(5, 0, 3)) {
            try {
                createTable("testBitType", "(field1 BIT, field2 BIT, field3 BIT)");
                this.stmt.executeUpdate("INSERT INTO testBitType VALUES (1, 0, NULL)");
                this.rs = this.stmt.executeQuery("SELECT field1, field2, field3 FROM testBitType");
                this.rs.next();

                assertTrue(((Boolean) this.rs.getObject(1)).booleanValue());
                assertTrue(!((Boolean) this.rs.getObject(2)).booleanValue());
                assertEquals(this.rs.getObject(3), null);

                System.out.println(this.rs.getObject(1) + ", " + this.rs.getObject(2) + ", " + this.rs.getObject(3));

                this.rs = this.conn.prepareStatement("SELECT field1, field2, field3 FROM testBitType").executeQuery();
                this.rs.next();

                assertTrue(((Boolean) this.rs.getObject(1)).booleanValue());
                assertTrue(!((Boolean) this.rs.getObject(2)).booleanValue());

                assertEquals(this.rs.getObject(3), null);
                byte[] asBytesTrue = this.rs.getBytes(1);
                byte[] asBytesFalse = this.rs.getBytes(2);
                byte[] asBytesNull = this.rs.getBytes(3);

                assertEquals(asBytesTrue[0], 1);
                assertEquals(asBytesFalse[0], 0);
                assertEquals(asBytesNull, null);

                createTable("testBitField", "(field1 BIT(9))");
                this.rs = this.stmt.executeQuery("SELECT field1 FROM testBitField");
                System.out.println(this.rs.getMetaData().getColumnClassName(1));
            } finally {
            }
        }
    }

    public void testSupportsSelectForUpdate() throws Exception {
        boolean supportsForUpdate = this.conn.getMetaData().supportsSelectForUpdate();

        if (this.versionMeetsMinimum(4, 0)) {
            assertTrue(supportsForUpdate);
        } else {
            assertTrue(!supportsForUpdate);
        }
    }

    public void testTinyint1IsBit() throws Exception {
        String tableName = "testTinyint1IsBit";
        // Can't use 'BIT' or boolean
        createTable(tableName, "(field1 TINYINT(1))");
        this.stmt.executeUpdate("INSERT INTO " + tableName + " VALUES (1)");

        Properties props = new Properties();
        props.setProperty("tinyint1IsBit", "true");
        props.setProperty("transformedBitIsBoolean", "true");
        Connection boolConn = getConnectionWithProps(props);

        this.rs = boolConn.createStatement().executeQuery("SELECT field1 FROM " + tableName);
        checkBitOrBooleanType(false);

        this.rs = boolConn.prepareStatement("SELECT field1 FROM " + tableName).executeQuery();
        checkBitOrBooleanType(false);

        this.rs = boolConn.getMetaData().getColumns(boolConn.getCatalog(), null, tableName, "field1");
        assertTrue(this.rs.next());

        if (versionMeetsMinimum(4, 1)) {
            assertEquals(Types.BOOLEAN, this.rs.getInt("DATA_TYPE"));
        } else {
            assertEquals(Types.BIT, this.rs.getInt("DATA_TYPE"));
        }

        if (versionMeetsMinimum(4, 1)) {
            assertEquals("BOOLEAN", this.rs.getString("TYPE_NAME"));
        } else {
            assertEquals("BIT", this.rs.getString("TYPE_NAME"));
        }

        props.clear();
        props.setProperty("transformedBitIsBoolean", "false");
        props.setProperty("tinyint1IsBit", "true");

        Connection bitConn = getConnectionWithProps(props);

        this.rs = bitConn.createStatement().executeQuery("SELECT field1 FROM " + tableName);
        checkBitOrBooleanType(true);

        this.rs = bitConn.prepareStatement("SELECT field1 FROM " + tableName).executeQuery();
        checkBitOrBooleanType(true);

        this.rs = bitConn.getMetaData().getColumns(boolConn.getCatalog(), null, tableName, "field1");
        assertTrue(this.rs.next());

        assertEquals(Types.BIT, this.rs.getInt("DATA_TYPE"));

        assertEquals("BIT", this.rs.getString("TYPE_NAME"));
    }

    private void checkBitOrBooleanType(boolean usingBit) throws SQLException {

        assertTrue(this.rs.next());
        assertEquals("java.lang.Boolean", this.rs.getObject(1).getClass().getName());
        if (!usingBit) {
            if (versionMeetsMinimum(4, 1)) {
                assertEquals(Types.BOOLEAN, this.rs.getMetaData().getColumnType(1));
            } else {
                assertEquals(Types.BIT, this.rs.getMetaData().getColumnType(1));
            }
        } else {
            assertEquals(Types.BIT, this.rs.getMetaData().getColumnType(1));
        }

        assertEquals("java.lang.Boolean", this.rs.getMetaData().getColumnClassName(1));
    }

    /**
     * Tests the implementation of Information Schema for primary keys.
     */
    public void testGetPrimaryKeysUsingInfoShcema() throws Exception {
        if (versionMeetsMinimum(5, 0, 7)) {
            createTable("t1", "(c1 int(1) primary key)");
            Properties props = new Properties();
            props.put("useInformationSchema", "true");
            Connection conn1 = null;
            try {
                conn1 = getConnectionWithProps(props);
                DatabaseMetaData metaData = conn1.getMetaData();
                this.rs = metaData.getPrimaryKeys(null, null, "t1");
                this.rs.next();
                assertEquals("t1", this.rs.getString("TABLE_NAME"));
                assertEquals("c1", this.rs.getString("COLUMN_NAME"));
            } finally {
                if (conn1 != null) {
                    conn1.close();
                }
            }
        }
    }

    /**
     * Tests the implementation of Information Schema for index info.
     */
    public void testGetIndexInfoUsingInfoSchema() throws Exception {
        if (versionMeetsMinimum(5, 0, 7)) {
            createTable("t1", "(c1 int(1))");
            this.stmt.executeUpdate("CREATE INDEX index1 ON t1 (c1)");

            Connection conn1 = null;

            try {
                conn1 = getConnectionWithProps("useInformationSchema=true");
                DatabaseMetaData metaData = conn1.getMetaData();
                this.rs = metaData.getIndexInfo(conn1.getCatalog(), null, "t1", false, true);
                this.rs.next();
                assertEquals("t1", this.rs.getString("TABLE_NAME"));
                assertEquals("c1", this.rs.getString("COLUMN_NAME"));
                assertEquals("1", this.rs.getString("NON_UNIQUE"));
                assertEquals("index1", this.rs.getString("INDEX_NAME"));
            } finally {
                if (conn1 != null) {
                    conn1.close();
                }
            }
        }
    }

    /**
     * Tests the implementation of Information Schema for columns.
     */
    public void testGetColumnsUsingInfoSchema() throws Exception {
        if (versionMeetsMinimum(5, 0, 7)) {
            createTable("t1", "(c1 char(1))");
            Properties props = new Properties();
            props.put("useInformationSchema", "true");
            Connection conn1 = null;
            try {
                conn1 = getConnectionWithProps(props);
                DatabaseMetaData metaData = conn1.getMetaData();
                this.rs = metaData.getColumns(null, null, "t1", null);
                this.rs.next();
                assertEquals("t1", this.rs.getString("TABLE_NAME"));
                assertEquals("c1", this.rs.getString("COLUMN_NAME"));
                assertEquals("CHAR", this.rs.getString("TYPE_NAME"));
                assertEquals("1", this.rs.getString("COLUMN_SIZE"));
            } finally {
                if (conn1 != null) {
                    conn1.close();
                }
            }
        }
    }

    /**
     * Tests the implementation of Information Schema for tables.
     */
    public void testGetTablesUsingInfoSchema() throws Exception {
        if (versionMeetsMinimum(5, 0, 7)) {
            createTable("`t1-1`", "(c1 char(1))");
            createTable("`t1-2`", "(c1 char(1))");
            createTable("`t2`", "(c1 char(1))");
            Set<String> tableNames = new HashSet<String>();
            tableNames.add("t1-1");
            tableNames.add("t1-2");
            Properties props = new Properties();
            props.put("useInformationSchema", "true");
            Connection conn1 = null;
            try {
                conn1 = getConnectionWithProps(props);
                DatabaseMetaData metaData = conn1.getMetaData();
                // pattern matching for table name
                this.rs = metaData.getTables(null, null, "t1-_", null);
                while (this.rs.next()) {
                    assertTrue(tableNames.remove(this.rs.getString("TABLE_NAME")));
                }
                assertTrue(tableNames.isEmpty());
            } finally {
                if (conn1 != null) {
                    conn1.close();
                }
            }
        }
    }

    /**
     * Tests the implementation of Information Schema for column privileges.
     */
    public void testGetColumnPrivilegesUsingInfoSchema() throws Exception {
        String dontRunPropertyName = "com.mysql.jdbc.testsuite.cantGrant";

        if (!runTestIfSysPropDefined(dontRunPropertyName)) {
            if (versionMeetsMinimum(5, 0, 7)) {
                Properties props = new Properties();

                props.put("useInformationSchema", "true");
                Connection conn1 = null;
                Statement stmt1 = null;
                String userHostQuoted = null;

                boolean grantFailed = true;

                try {
                    conn1 = getConnectionWithProps(props);
                    stmt1 = conn1.createStatement();
                    createTable("t1", "(c1 int)");
                    this.rs = stmt1.executeQuery("SELECT USER()");
                    this.rs.next();
                    String user = this.rs.getString(1);
                    List<String> userHost = StringUtils.split(user, "@", false);
                    if (userHost.size() < 2) {
                        fail("This test requires a JDBC URL with a user, and won't work with the anonymous user. "
                                + "You can skip this test by setting the system property " + dontRunPropertyName);
                    }
                    userHostQuoted = "'" + userHost.get(0) + "'@'" + userHost.get(1) + "'";

                    try {
                        stmt1.executeUpdate("GRANT update (c1) on t1 to " + userHostQuoted);

                        grantFailed = false;

                    } catch (SQLException sqlEx) {
                        fail("This testcase needs to be run with a URL that allows the user to issue GRANTs "
                                + " in the current database. You can skip this test by setting the system property \"" + dontRunPropertyName + "\".");
                    }

                    if (!grantFailed) {
                        DatabaseMetaData metaData = conn1.getMetaData();
                        this.rs = metaData.getColumnPrivileges(null, null, "t1", null);
                        this.rs.next();
                        assertEquals("t1", this.rs.getString("TABLE_NAME"));
                        assertEquals("c1", this.rs.getString("COLUMN_NAME"));
                        assertEquals(userHostQuoted, this.rs.getString("GRANTEE"));
                        assertEquals("UPDATE", this.rs.getString("PRIVILEGE"));
                    }
                } finally {
                    if (stmt1 != null) {

                        if (!grantFailed) {
                            stmt1.executeUpdate("REVOKE UPDATE (c1) ON t1 FROM " + userHostQuoted);
                        }

                        stmt1.close();
                    }

                    if (conn1 != null) {
                        conn1.close();
                    }
                }
            }
        }
    }

    /**
     * Tests the implementation of Information Schema for description
     * of stored procedures available in a catalog.
     */
    public void testGetProceduresUsingInfoSchema() throws Exception {
        if (versionMeetsMinimum(5, 0, 7)) {
            createProcedure("sp1", "()\n BEGIN\nSELECT 1;end\n");
            Properties props = new Properties();
            props.put("useInformationSchema", "true");
            Connection conn1 = null;
            try {
                conn1 = getConnectionWithProps(props);
                DatabaseMetaData metaData = conn1.getMetaData();
                this.rs = metaData.getProcedures(null, null, "sp1");
                this.rs.next();
                assertEquals("sp1", this.rs.getString("PROCEDURE_NAME"));
                assertEquals("1", this.rs.getString("PROCEDURE_TYPE"));
            } finally {
                if (conn1 != null) {
                    conn1.close();
                }
            }
        }
    }

    /**
     * Tests the implementation of Information Schema for foreign key.
     */
    public void testGetCrossReferenceUsingInfoSchema() throws Exception {
        if (versionMeetsMinimum(5, 0, 7)) {
            this.stmt.executeUpdate("DROP TABLE IF EXISTS child");
            this.stmt.executeUpdate("DROP TABLE If EXISTS parent");
            this.stmt.executeUpdate("CREATE TABLE parent(id INT NOT NULL, PRIMARY KEY (id)) ENGINE=INNODB");
            this.stmt.executeUpdate("CREATE TABLE child(id INT, parent_id INT, "
                    + "FOREIGN KEY (parent_id) REFERENCES parent(id) ON DELETE SET NULL) ENGINE=INNODB");
            Properties props = new Properties();
            props.put("useInformationSchema", "true");
            Connection conn1 = null;
            try {
                conn1 = getConnectionWithProps(props);
                DatabaseMetaData metaData = conn1.getMetaData();
                this.rs = metaData.getCrossReference(null, null, "parent", null, null, "child");
                this.rs.next();
                assertEquals("parent", this.rs.getString("PKTABLE_NAME"));
                assertEquals("id", this.rs.getString("PKCOLUMN_NAME"));
                assertEquals("child", this.rs.getString("FKTABLE_NAME"));
                assertEquals("parent_id", this.rs.getString("FKCOLUMN_NAME"));
            } finally {
                this.stmt.executeUpdate("DROP TABLE IF EXISTS child");
                this.stmt.executeUpdate("DROP TABLE If EXISTS parent");
                if (conn1 != null) {
                    conn1.close();
                }
            }
        }
    }

    /**
     * Tests the implementation of Information Schema for foreign key.
     */
    public void testGetExportedKeysUsingInfoSchema() throws Exception {
        if (versionMeetsMinimum(5, 0, 7)) {
            this.stmt.executeUpdate("DROP TABLE IF EXISTS child");
            this.stmt.executeUpdate("DROP TABLE If EXISTS parent");
            this.stmt.executeUpdate("CREATE TABLE parent(id INT NOT NULL, PRIMARY KEY (id)) ENGINE=INNODB");
            this.stmt.executeUpdate("CREATE TABLE child(id INT, parent_id INT, "
                    + "FOREIGN KEY (parent_id) REFERENCES parent(id) ON DELETE SET NULL) ENGINE=INNODB");
            Properties props = new Properties();
            props.put("useInformationSchema", "true");
            Connection conn1 = null;
            try {
                conn1 = getConnectionWithProps(props);
                DatabaseMetaData metaData = conn1.getMetaData();
                this.rs = metaData.getExportedKeys(null, null, "parent");
                this.rs.next();
                assertEquals("parent", this.rs.getString("PKTABLE_NAME"));
                assertEquals("id", this.rs.getString("PKCOLUMN_NAME"));
                assertEquals("child", this.rs.getString("FKTABLE_NAME"));
                assertEquals("parent_id", this.rs.getString("FKCOLUMN_NAME"));
            } finally {
                this.stmt.executeUpdate("DROP TABLE IF EXISTS child");
                this.stmt.executeUpdate("DROP TABLE If EXISTS parent");
                if (conn1 != null) {
                    conn1.close();
                }
            }
        }
    }

    /**
     * Tests the implementation of Information Schema for foreign key.
     */
    public void testGetImportedKeysUsingInfoSchema() throws Exception {
        if (versionMeetsMinimum(5, 0, 7)) {
            this.stmt.executeUpdate("DROP TABLE IF EXISTS child");
            this.stmt.executeUpdate("DROP TABLE If EXISTS parent");
            this.stmt.executeUpdate("CREATE TABLE parent(id INT NOT NULL, PRIMARY KEY (id)) ENGINE=INNODB");
            this.stmt.executeUpdate("CREATE TABLE child(id INT, parent_id INT, "
                    + "FOREIGN KEY (parent_id) REFERENCES parent(id) ON DELETE SET NULL) ENGINE=INNODB");
            Properties props = new Properties();
            props.put("useInformationSchema", "true");
            Connection conn1 = null;
            try {
                conn1 = getConnectionWithProps(props);
                DatabaseMetaData metaData = conn1.getMetaData();
                this.rs = metaData.getImportedKeys(null, null, "child");
                this.rs.next();
                assertEquals("parent", this.rs.getString("PKTABLE_NAME"));
                assertEquals("id", this.rs.getString("PKCOLUMN_NAME"));
                assertEquals("child", this.rs.getString("FKTABLE_NAME"));
                assertEquals("parent_id", this.rs.getString("FKCOLUMN_NAME"));
            } finally {
                this.stmt.executeUpdate("DROP TABLE IF EXISTS child");
                this.stmt.executeUpdate("DROP TABLE If EXISTS parent");
                if (conn1 != null) {
                    conn1.close();
                }
            }
        }
    }

    /**
     * WL#411 - Generated columns.
     * 
     * Test for new syntax and support in DatabaseMetaData.getColumns().
     * 
     * New syntax for CREATE TABLE, introduced in MySQL 5.7.6:
     * -col_name data_type [GENERATED ALWAYS] AS (expression) [VIRTUAL | STORED] [UNIQUE [KEY]] [COMMENT comment] [[NOT] NULL] [[PRIMARY] KEY]
     */
    public void testGeneratedColumns() throws Exception {
        if (!versionMeetsMinimum(5, 7, 6)) {
            return;
        }

        // Test GENERATED columns syntax.
        createTable("pythagorean_triple", "(side_a DOUBLE NULL, side_b DOUBLE NULL, "
                + "side_c_vir DOUBLE AS (SQRT(side_a * side_a + side_b * side_b)) VIRTUAL UNIQUE KEY COMMENT 'hypotenuse - virtual', "
                + "side_c_sto DOUBLE GENERATED ALWAYS AS (SQRT(POW(side_a, 2) + POW(side_b, 2))) STORED UNIQUE KEY COMMENT 'hypotenuse - stored' NOT NULL "
                + "PRIMARY KEY)");

        // Test data for generated columns.
        assertEquals(1, this.stmt.executeUpdate("INSERT INTO pythagorean_triple (side_a, side_b) VALUES (3, 4)"));
        this.rs = this.stmt.executeQuery("SELECT * FROM pythagorean_triple");
        assertTrue(this.rs.next());
        assertEquals(3d, this.rs.getDouble(1));
        assertEquals(4d, this.rs.getDouble(2));
        assertEquals(5d, this.rs.getDouble(3));
        assertEquals(5d, this.rs.getDouble(4));
        assertEquals(3d, this.rs.getDouble("side_a"));
        assertEquals(4d, this.rs.getDouble("side_b"));
        assertEquals(5d, this.rs.getDouble("side_c_sto"));
        assertEquals(5d, this.rs.getDouble("side_c_vir"));
        assertFalse(this.rs.next());

        for (String connProps : new String[] { "useInformationSchema=false", "useInformationSchema=true" }) {
            Connection testConn = null;
            testConn = getConnectionWithProps(connProps);
            DatabaseMetaData dbmd = testConn.getMetaData();

            String test = "Case [" + connProps + "]";

            // Test columns metadata.
            this.rs = dbmd.getColumns(null, null, "pythagorean_triple", "%");
            assertTrue(test, this.rs.next());
            assertEquals(test, "side_a", this.rs.getString("COLUMN_NAME"));
            assertEquals(test, "YES", this.rs.getString("IS_NULLABLE"));
            assertEquals(test, "NO", this.rs.getString("IS_AUTOINCREMENT"));
            assertEquals(test, "NO", this.rs.getString("IS_GENERATEDCOLUMN"));
            assertTrue(test, this.rs.next());
            assertEquals(test, "side_b", this.rs.getString("COLUMN_NAME"));
            assertEquals(test, "YES", this.rs.getString("IS_NULLABLE"));
            assertEquals(test, "NO", this.rs.getString("IS_AUTOINCREMENT"));
            assertEquals(test, "NO", this.rs.getString("IS_GENERATEDCOLUMN"));
            assertTrue(test, this.rs.next());
            assertEquals(test, "side_c_vir", this.rs.getString("COLUMN_NAME"));
            assertEquals(test, "YES", this.rs.getString("IS_NULLABLE"));
            assertEquals(test, "NO", this.rs.getString("IS_AUTOINCREMENT"));
            assertEquals(test, "YES", this.rs.getString("IS_GENERATEDCOLUMN"));
            assertTrue(test, this.rs.next());
            assertEquals(test, "side_c_sto", this.rs.getString("COLUMN_NAME"));
            assertEquals(test, "NO", this.rs.getString("IS_NULLABLE"));
            assertEquals(test, "NO", this.rs.getString("IS_AUTOINCREMENT"));
            assertEquals(test, "YES", this.rs.getString("IS_GENERATEDCOLUMN"));
            assertFalse(test, this.rs.next());

            // Test primary keys metadata.
            this.rs = dbmd.getPrimaryKeys(null, null, "pythagorean_triple");
            assertTrue(test, this.rs.next());
            assertEquals(test, "side_c_sto", this.rs.getString("COLUMN_NAME"));
            assertEquals(test, "PRIMARY", this.rs.getString("PK_NAME"));
            assertFalse(test, this.rs.next());

            // Test indexes metadata.
            this.rs = dbmd.getIndexInfo(null, null, "pythagorean_triple", false, true);
            assertTrue(test, this.rs.next());
            assertEquals(test, "PRIMARY", this.rs.getString("INDEX_NAME"));
            assertEquals(test, "side_c_sto", this.rs.getString("COLUMN_NAME"));
            assertTrue(test, this.rs.next());
            assertEquals(test, "side_c_sto", this.rs.getString("INDEX_NAME"));
            assertEquals(test, "side_c_sto", this.rs.getString("COLUMN_NAME"));
            assertTrue(test, this.rs.next());
            assertEquals(test, "side_c_vir", this.rs.getString("INDEX_NAME"));
            assertEquals(test, "side_c_vir", this.rs.getString("COLUMN_NAME"));
            assertFalse(test, this.rs.next());

            testConn.close();
        }
    }
}

Anon7 - 2022
AnonSec Team