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/*
 * Firebird Open Source J2ee connector - jdbc driver
 *
 * Distributable under LGPL license.
 * You may obtain a copy of the License at http://www.gnu.org/copyleft/lgpl.html
 *
 * 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
 * LGPL License for more details.
 *
 * This file was created by members of the firebird development team.
 * All individual contributions remain the Copyright (C) of those
 * individuals.  Contributors to this file are either listed here or
 * can be obtained from a CVS history command.
 *
 * All rights reserved.
 */
package org.firebirdsql.jca;

import java.sql.DatabaseMetaData;
import java.sql.ResultSet;
import java.sql.Statement;
import java.sql.Types;

import javax.resource.spi.LocalTransaction;
import javax.sql.DataSource;

import org.firebirdsql.jdbc.*;

/**
 * Describe class TestFBDatabaseMetaData here.
 * 
 * @author David Jencks 
 * @version 1.0
 */
public class TestFBDatabaseMetaData extends TestXABase {

    private AbstractConnection c;

    private Statement s;

    private DatabaseMetaData dmd;

    private LocalTransaction t;

    private Exception ex;

    public TestFBDatabaseMetaData(String name) {
        super(name);
    }

    public void setUp() throws Exception {
        super.setUp();
        ex = null;
        FBManagedConnectionFactory mcf = initMcf();
        DataSource ds = (DataSource) mcf.createConnectionFactory();
        c = (AbstractConnection) ds.getConnection();
        s = c.createStatement();
        t = c.getLocalTransaction();
        dmd = c.getMetaData();
    }

    public void tearDown() throws Exception {
        s.close();
        s = null;
        if (c.inTransaction()) {
            t.commit();
        }
        t = null;
        dmd = null;
        c.close();
        c = null;
        super.tearDown();
    }

    public void testGetTablesNull() throws Exception {

        if (log != null) log.info("testGetTablesNull");
        createTable("T1");

        t.begin();
        ResultSet rs = dmd.getTables(null, null, "T1", null);
        int count = 0;
        while (rs.next()) {
            String name = rs.getString(3);
            if (log != null) log.info("table name: " + name);
            count++;
            assertTrue("Didn't get back the name expected", "T1".equals(name));
        }
        assertTrue("Got more than one table name back!", count == 1);
        rs.close();
        t.commit();

        dropTable("T1");
        if (ex != null) { throw ex; }

    }

    public void testGetTablesSystem() throws Exception {

        if (log != null) log.info("testGetTablesSystem");
        createTable("T1");

        t.begin();
        ResultSet rs = dmd.getTables(null, null, "T1",
            new String[] { "SYSTEM TABLE"});
        int count = 0;
        while (rs.next()) {
            String name = rs.getString(3);
            if (log != null) log.info("table name: " + name);
            count++;
            assertTrue("Didn't get back the name expected", "T1".equals(name));
        }
        assertTrue("Got more a table name back!", count == 0);
        rs.close();
        t.commit();

        dropTable("T1");
        if (ex != null) { throw ex; }

    }

    public void testGetTablesTable() throws Exception {

        if (log != null) log.info("testGetTablesTable");
        createTable("T1");

        t.begin();
        ResultSet rs = dmd.getTables(null, null, "T1", new String[] { "TABLE"});
        int count = 0;
        while (rs.next()) {
            String name = rs.getString(3);
            if (log != null) log.info("table name: " + name);
            count++;
            assertTrue("Didn't get back the name expected", "T1".equals(name));
        }
        assertTrue("Got more a table name back!", count == 1);
        rs.close();
        t.commit();

        dropTable("T1");
        if (ex != null) { throw ex; }

    }

    public void testGetTablesView() throws Exception {

        if (log != null) log.info("testGetTablesView");
        createTable("T1");

        t.begin();
        ResultSet rs = dmd.getTables(null, null, "T1", new String[] { "VIEW"});
        int count = 0;
        while (rs.next()) {
            String name = rs.getString(3);
            if (log != null) log.info("table name: " + name);
            count++;
            assertTrue("Didn't get back the name expected", "T1".equals(name));
        }
        assertTrue("Got more a table name back!", count == 0);
        rs.close();
        t.commit();

        dropTable("T1");
        if (ex != null) { throw ex; }

    }

    public void testGetSystemTablesSystem() throws Exception {

        if (log != null) log.info("testGetSystemTablesSystem");

        t.begin();
        ResultSet rs = dmd.getTables(null, null, "RDB$RELATIONS",
            new String[] { "SYSTEM TABLE"});
        int count = 0;
        while (rs.next()) {
            String name = rs.getString(3);
            if (log != null) log.info("table name: " + name);
            count++;
            assertTrue("Didn't get back the name expected", "RDB$RELATIONS"
                    .equals(name));
        }
        assertTrue("Got more than one table name back!", count == 1);
        rs.close();

        t.commit();
    }

    public void testGetAllSystemTablesSystem() throws Exception {

        if (log != null) log.info("testGetSystemTablesSystem");

        t.begin();
        ResultSet rs = dmd.getTables(null, null, "%",
            new String[] { "SYSTEM TABLE"});
        int count = 0;
        while (rs.next()) {
            String name = rs.getString(3);
            if (log != null) log.info("table name: " + name);
            count++;
        }
        
        int sysTableCount;
        
        FirebirdDatabaseMetaData metaData = (FirebirdDatabaseMetaData)c.getMetaData();
        
        if (metaData.getDatabaseMajorVersion() < 2)
            sysTableCount = 32;
        else
        if (metaData.getDatabaseMajorVersion() == 2 && metaData.getDatabaseMinorVersion() == 0)
            sysTableCount = 33;
        if (metaData.getDatabaseMajorVersion() == 2 && metaData.getDatabaseMinorVersion() == 1)
            sysTableCount = 40;
        else {
            fail("Unsupported database server version for this test case: found table count " + count);
            
            // needed to make compiler happy - it does not know that fail() throws an exception
            return;
        }
        
        assertTrue("# of system tables is not 32: counted: " + count, count == sysTableCount);
        rs.close();
        t.commit();

    }

    public void testAAStringFunctions() {

        if (log != null) log.info("testAAStringFunctions");
        FBDatabaseMetaData d = (FBDatabaseMetaData) dmd;
        assertTrue("claims test\\_me has wildcards", d
                .hasNoWildcards("test\\_me"));
        assertTrue("strip escape wrong", d.stripEscape("test\\_me").equals(
            "test_me"));
        assertTrue("strip quotes wrong", d.stripQuotes("test_me", true).equals(
            "TEST_ME"));
        assertTrue("strip quotes wrong: " + d.stripQuotes("\"test_me\"", true), d
                .stripQuotes("\"test_me\"", true).equals("test_me"));
    }

    public void testGetTablesWildcardQuote() throws Exception {

        if (log != null) log.info("testGetTablesWildcardQuote");
        createTable("test_me");
        createTable("test__me");
        createTable("\"test_ me\"");
        createTable("\"test_ me too\"");
        createTable("\"test_me too\"");

        t.begin();
        ResultSet rs = dmd.getTables(null, null, "test%m_",
            new String[] { "TABLE"});
        int count = 0;
        while (rs.next()) {
            String name = rs.getString(3);
            if (log != null) log.info("table name: " + name);
            assertTrue("wrong name found: " + name, "TEST_ME".equals(name)
                    || "TEST__ME".equals(name));
            count++;
        }
        assertTrue("more than one table found: " + count, count == 2);
        rs.close();

        rs = dmd.getTables(null, null, "test\\_me", new String[] { "TABLE"});
        count = 0;
        while (rs.next()) {
            String name = rs.getString(3);
            if (log != null) log.info("table name: " + name);
            assertTrue("wrong name found: " + name, "TEST_ME".equals(name));
            count++;
        }
        assertTrue("more than one table found: " + count, count == 1);
        rs.close();

        rs = dmd.getTables(null, null, "\"test\\_ me\"",
            new String[] { "TABLE"});
        count = 0;
        while (rs.next()) {
            String name = rs.getString(3);
            if (log != null) log.info("table name: " + name);
            assertTrue("wrong name found: " + name, "test_ me".equals(name));
            count++;
        }
        assertTrue("more than one table found: " + count, count == 1);
        rs.close();

        rs = dmd.getTables(null, null, "\"test\\_ me%\"",
            new String[] { "TABLE"});
        count = 0;
        while (rs.next()) {
            String name = rs.getString(3);
            if (log != null) log.info("table name: " + name);
            assertTrue("wrong name found: " + name, "test_ me".equals(name)
                    || "test_ me too".equals(name));
            count++;
        }
        assertTrue("more than one table found: " + count, count == 2);
        rs.close();

        rs = dmd.getTables(null, null, "RDB_RELATIONS",
            new String[] { "SYSTEM TABLE"});
        count = 0;
        while (rs.next()) {
            String name = rs.getString(3);
            if (log != null) log.info("table name: " + name);
            assertTrue("wrong name found: " + name, "RDB$RELATIONS"
                    .equals(name));
            count++;
        }
        assertTrue("more than one table found: " + count, count == 1);
        rs.close();
        t.commit();

        dropTable("test_me");
        dropTable("test__me");
        dropTable("\"test_ me\"");
        dropTable("\"test_ me too\"");
        dropTable("\"test_me too\"");

        if (ex != null) { throw ex; }

    }

    public void testGetColumnsWildcardQuote() throws Exception {

        if (log != null) log.info("testGetColumnsWildcardQuote");
        createTable("test_me");
        createTable("test__me");
        createTable("\"test_ me\"");
        createTable("\"test_ me too\"");
        createTable("\"test_me too\"");

        t.begin();
        ResultSet rs = dmd.getColumns(null, null, "test%m_",
            "\"my\\_ column2\"");
        int count = 0;
        while (rs.next()) {
            String name = rs.getString(3);
            String column = rs.getString(4);
            if (log != null) log.info("table name: " + name);
            assertTrue("wrong name found: " + name, "test_ me".equals(name)
                    || "test_ me too".equals(name) || "test_me too".equals(name));
            assertTrue("wrong column found: " + column, "my_ column2"
                    .equals(column));
            count++;
        }
        assertTrue("more than one table found: " + count, count == 3);
        rs.close();
        t.commit();

        dropTable("test_me");
        dropTable("test__me");
        dropTable("\"test_ me\"");
        dropTable("\"test_ me too\"");
        dropTable("\"test_me too\"");

        if (ex != null) { throw ex; }

    }

    public void testGetProcedures() throws Exception {
        // expanded tests added by Jeremy Williams 2002.

        if (log != null) log.info("testGetProcedures");
        createProcedure("testproc1", true);
        createProcedure("testproc2", false);

        t.begin();
        ResultSet rs = dmd.getProcedures(null, null, "%");
        assertTrue("No resultset returned from getProcedures", rs != null);
        boolean gotproc1 = false;
        boolean gotproc2 = false;
        while (rs.next()) {
            String name = rs.getString(3);
            String lit_name = rs.getString("PROCEDURE_NAME");
            assertTrue(
                "result set from getProcedures schema mismatch: field 3 should be PROCEDURE_NAME",
                name.equals(lit_name));
            String remarks = rs.getString(7);
            String lit_remarks = rs.getString("REMARKS");
            if (remarks == null || lit_remarks == null)
                if (remarks != null || lit_remarks != null)
                    assertTrue(
                        "result set from getProcedures schema mismatch only one of field 7 or 'REMARKS' returned null",
                        false);
                else
                    assertTrue("all OK on the western front", true);
            else
                assertTrue(
                    "result set from getProcedures schema mismatch: field 7 should be REMARKS",
                    remarks.equals(lit_remarks));
            short type = rs.getShort(8);
            short lit_type = rs.getShort("PROCEDURE_TYPE");
            assertTrue(
                "result set from getProcedures schema mismatch: field 8 should be PROCEDURE_TYPE",
                type == lit_type);
            if (log != null) log.info(" got procedure " + name);
            if (name.equals("TESTPROC1")) {
                assertTrue(
                    "result set from getProcedures had duplicate entry for TESTPROC1",
                    !gotproc1);
                gotproc1 = true;
                assertTrue(
                    "result set from getProcedures had wrong procedure type for TESTPROC1 "
                            + "(should be procedureReturnsResult)",
                    type == DatabaseMetaData.procedureReturnsResult);
                assertTrue(
                    "result set from getProcedures did not return a value for REMARKS.",
                    remarks != null);
                assertTrue(
                    "result set from getProcedures did not return correct REMARKS section.",
                    remarks.equals("Test description"));
            } else if (name.equals("TESTPROC2")) {
                assertTrue(
                    "result set from getProcedures had duplicate entry for TESTPROC2",
                    !gotproc2);
                gotproc2 = true;
                assertTrue(
                    "result set from getProcedures had wrong procedure type for TESTPROC2 "
                            + "(should be procedureNoResult)",
                    type == DatabaseMetaData.procedureNoResult);
            } else
                assertTrue(
                    "result set from getProcedures returned unknown procedure "
                            + name, false);
        }
        assertTrue(
            "result set from getProcedures did not return procedure testproc1",
            gotproc1);
        assertTrue(
            "result set from getProcedures did not return procedure testproc2",
            gotproc2);
        rs.close();
        t.commit();

        dropProcedure("testproc1");
        dropProcedure("testproc2");
        if (ex != null) throw ex;
    }

    public void testGetProcedureColumns() throws Exception {

        if (log != null) log.info("testGetProcedureColumns");
        createProcedure("testproc1", true);
        createProcedure("testproc2", false);

        t.begin();
        ResultSet rs = dmd.getProcedureColumns(null, null, "%", "%");
        assertTrue("No resultset returned from getProcedureColumns", rs != null);
        int rownum = 0;
        while (rs.next()) {
            rownum++;
            String procname = rs.getString(3);
            String colname = rs.getString(4);
            short coltype = rs.getShort(5);
            short datatype = rs.getShort(6);
            String typename = rs.getString(7);
            int precision = rs.getInt(8);
            int length = rs.getInt(9);
            short scale = rs.getShort(10);
            short radix = rs.getShort(11);
            short nullable = rs.getShort(12);
            String remarks = rs.getString(13);
            if (log != null)
                log.info("row " + (new Integer(rownum)).toString() + "proc "
                        + procname + " field " + colname);

            // per JDBC 2.0 spec, there is a very specific order these
            // rows should come back, so if field names don't match
            // what I'm expecting, in the order I expect them, there
            // is a bug.
            switch (rownum) {
                case 4:
                    assertTrue("wrong pr name.", procname.equals("TESTPROC1"));
                    assertTrue("wrong f name.", colname.equals("IN1"));
                    assertTrue("wrong c type.",
                        coltype == DatabaseMetaData.procedureColumnIn);
                    assertTrue("wrong d type.", datatype == Types.INTEGER);
                    assertTrue("wrong t name.", typename.equals("INTEGER"));
                    assertTrue("wrong radix.", radix == 10);
                    assertTrue("wrong nullable.",
                        nullable == DatabaseMetaData.procedureNullable);
                    assertTrue("wrong comment.", remarks == null);
                    break;
                case 5:
                    assertTrue("wrong pr name", procname.equals("TESTPROC1"));
                    assertTrue("wrong f name", colname.equals("IN2"));
                    break;
                case 1:
                    assertTrue("wrong pr name", procname.equals("TESTPROC1"));
                    assertTrue("wrong f name", colname.equals("OUT1"));
                    assertTrue("wrong c type",
                        coltype == DatabaseMetaData.procedureColumnOut);
                    break;
                case 2:
                    assertTrue("wrong pr name", procname.equals("TESTPROC1"));
                    assertTrue("wrong f name", colname.equals("OUT2"));
                    break;
                case 3:
                    assertTrue("wrong pr name", procname.equals("TESTPROC1"));
                    assertTrue("wrong f name", colname.equals("OUT3"));
                    break;
                case 6:
                    assertTrue("wrong pr name", procname.equals("TESTPROC2"));
                    assertTrue("wrong f name", colname.equals("INP"));
                    break;
                default:
                    assertTrue(
                        "stray field returned from getProcedureColumns.", false);
            } // end-switch

        } // end-while

        t.commit();
        dropProcedure("testproc1");
        dropProcedure("testproc2");
        if (ex != null) throw ex;
    }

    public void testGetColumnPrivileges() throws Exception {

        if (log != null) log.info("testGetColumnPrivileges");

        t.begin();
        ResultSet rs = dmd
                .getColumnPrivileges(null, null, "RDB$RELATIONS", "%");
        assertTrue("No resultset returned from getColumnPrivileges", rs != null);
        t.commit();
    }

    public void testGetTablePrivileges() throws Exception {
        if (log != null) log.info("testGetTablePrivileges");

        t.begin();
        ResultSet rs = dmd.getTablePrivileges(null, null, "%");
        assertTrue("No resultset returned from getTablePrivileges", rs != null);
        t.commit();
    }

    public void testGetTypeInfo() throws Exception {

        if (log != null) log.info("testGetTypeInfo");

        ResultSet rs = dmd.getTypeInfo();
        assertTrue("No resultset returned from getTypeInfo", rs != null);
        int count = 0;
        String out = "";
        while (rs.next()) {
            count++;
            for (int i = 1; i <= 18; i++) {
                Object o = rs.getObject(i);
                if (o == null) {
                    o = "null";
                }
                out += o.toString();
            }
            out += System.getProperty("line.separator");
        }
        if (log != null) log.info("getTypeInfoblePrivileges returned: " + out);
        assertTrue("Not enough TypeInfo rows fetched: " + count, count >= 15);
    }

    public void testDefaultValue() throws Exception {
        t.begin();
        try {
            s.execute("CREATE TABLE test_default ("
                    + "test_col INTEGER DEFAULT 0 NOT NULL)");

            ResultSet rs = dmd.getColumns(null, "%", "test_default", null);
            boolean hasRow = rs.next();

            assertTrue("Should return at least one row", hasRow);

            String defaultValue = rs.getString("COLUMN_DEF");
            assertTrue("Default value should be correct.", "0"
                    .equals(defaultValue));

        } finally {
            // s.execute("DROP TABLE test_default");
            t.commit();
        }
    }

    public void testLongTableName() throws Exception {
        String tableName = "PLANILLAS_PREVISION_MANTENIMIEN";
        createTable(tableName);
        try {
            t.begin();
            ResultSet rs = dmd.getPrimaryKeys(null, null, tableName);
            assertTrue("Should return primary key information", rs.next());
            t.commit();
        } finally {
            dropTable(tableName);
        }
    }

    private void createTable(String tableName, String constraint)
            throws Exception {
        dropTable(tableName);
        t.begin();
        try {
            String sql = "CREATE TABLE " + tableName + " ( "
                    + "C1 INTEGER not null, " + "C2 SMALLINT, "
                    + "C3 DECIMAL(18,0), " + "C4 FLOAT, "
                    + "C5 DOUBLE PRECISION, " + "\"my column1\" CHAR(10), "
                    + "\"my_ column2\" VARCHAR(20)"
                    + (constraint != null ? ", " + constraint + ")" : ")");

            s.execute(sql);
        } catch (Exception e) {
            ex = e;
        }
        t.commit();
    }

    private void createTable(String tableName) throws Exception {
        createTable(tableName, "PRIMARY KEY (c1)");
    }

    private void createProcedure(String procedureName, boolean returnsData)
            throws Exception {
        dropProcedure(procedureName);
        t.begin();
        try {
            if (returnsData) {
                s.execute("CREATE PROCEDURE " + procedureName
                        + "(IN1 INTEGER, IN2 FLOAT)"
                        + "RETURNS (OUT1 VARCHAR(20), "
                        + "OUT2 DOUBLE PRECISION, OUT3 INTEGER) AS "
                        + "DECLARE VARIABLE X INTEGER;" + "BEGIN"
                        + " OUT1 = 'Out String';" + " OUT2 = 45;"
                        + " OUT3 = IN1;" + "END");
                
                int updateCount = s.executeUpdate("UPDATE RDB$PROCEDURES "
                        + "SET RDB$DESCRIPTION='Test description' "
                        + "WHERE RDB$PROCEDURE_NAME='"
                        + procedureName.toUpperCase() + "'");

                if (updateCount != 1)
                    fail("Could not set procedure description");
            } else
                s.execute("CREATE PROCEDURE " + procedureName
                        + " (INP INTEGER) AS BEGIN exit; END");
        } catch (Exception e) {
            if (log != null)
                log.warn("error creating procedure: " + e.getMessage());
            ex = e;
        }
        t.commit();
    }

    private void dropTable(String tableName) throws Exception {
        t.begin();
        try {
            s.execute("drop table " + tableName);
        } catch (Exception e) {
        }
        t.commit();
    }

    private void dropProcedure(String procedureName) throws Exception {
        t.begin();
        try {
            s.execute("DROP PROCEDURE " + procedureName);
        } catch (Exception e) {
        }
        t.commit();
    }

    public void testCatalogsAndSchema() throws Exception {
        DatabaseMetaData dmd = c.getMetaData();
        String catalog = null;
        t.begin();
        ResultSet rs = dmd.getSchemas();
        while (rs.next()) {

            String sn = rs.getString(1);
            System.out.println(".getAllTables() schema=" + sn);
        }
        rs.close();

        rs = dmd.getCatalogs();
        while (rs.next()) {
            String sn = rs.getString(1);
            System.out.println(".getAllTables() catalogs=" + sn);
        }
        rs.close();

        rs = dmd.getTables(null, null, "%", new String[] { "TABLE"});
        System.out.println(".getAllTables() rs=" + rs);

        while (rs.next()) {
            String tn = rs.getString("TABLE_NAME");
            String tt = rs.getString("TABLE_TYPE");
            String remarks = rs.getString("REMARKS");

            System.out.println(".getAllTables() found table" + tn + ", type="
                    + tt + ", remarks=" + remarks);
        }
        t.commit();
    }

    public void testGetBestRowIdentifier() throws Exception {
        try {
            createTable("best_row_pk");
            createTable("best_row_no_pk", null);

            DatabaseMetaData dmd = c.getMetaData();

            t.begin();
            ResultSet rs = dmd.getBestRowIdentifier("", "", "BEST_ROW_PK",
                DatabaseMetaData.bestRowSession, true);

            assertTrue("Should have rows", rs.next());
            assertTrue("Column name should be C1", "C1".equals(rs.getString(2)));
            assertTrue("Column type should be INTEGER", "INTEGER".equals(rs
                    .getString(4)));
            assertTrue("Should have only one row", !rs.next());

            rs.close();

            rs = dmd.getBestRowIdentifier("", "", "BEST_ROW_NO_PK",
                DatabaseMetaData.bestRowSession, true);

            assertTrue("Should have rows", rs.next());
            assertTrue("Column name should be RDB$DB_KEY", "RDB$DB_KEY"
                    .equals(rs.getString(2)));
            assertTrue("Should have only one row", !rs.next());

            rs.close();
            t.commit();

        } finally {
            dropTable("best_row_pk");
            dropTable("best_row_no_pk");
        }
    }
}




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