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/**
 *
 * 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.openejb.test;

import org.apache.openejb.test.beans.Database;
import org.apache.openejb.test.beans.DatabaseHome;

import javax.naming.InitialContext;
import java.rmi.RemoteException;
import java.util.Properties;

public class HsqldbTestDatabase implements TestDatabase {

    protected Database database;
    protected InitialContext initialContext;

    private static String _createAccount = "CREATE TABLE account ( ssn VARCHAR(255), first_name VARCHAR(255), last_name VARCHAR(255), balance integer)";

    private static String _dropAccount = "DROP TABLE account";

    private static String _createEntity = "CREATE TABLE entity ( id IDENTITY, first_name VARCHAR(255), last_name VARCHAR(255) )";

    private static String _dropEntity = "DROP TABLE entity";

    // CmrMapping
    private static final String CREATE_ONE_OWNING = "CREATE TABLE oneowning (col_id INTEGER, col_field1 INTEGER)";
    private static final String DROP_ONE_OWNING = "DROP TABLE oneowning";
    private static final String CREATE_ONE_INVERSE = "CREATE TABLE oneinverse (col_id INTEGER)";
    private static final String DROP_ONE_INVERSE = "DROP TABLE oneinverse";
    private static final String CREATE_MANY_OWNING = "CREATE TABLE manyowning (col_id INTEGER, col_field1 INTEGER)";
    private static final String DROP_MANY_OWNING = "DROP TABLE manyowning";

    // Automatically created tables - these must be dropped before the tests run or you will get a duplicate key exception
    private static final String[] AUTO_CREATED_TABLES = new String[]{
        "BasicCmpBean",
        "BasicCmpBeanX",
        "ComplexCmpBean",
        "ComplexCmpBeanX",
        "UnknownCmpBean",
        "UnknownCmpBeanX",
        "BasicCmp2Bean",
        "ComplexCmp2Bean",
        "UnknownCmp2Bean",
        "AOBasicCmpBean",
        "AllowedOperationsCmp2Bean",
        "EncCmpBean",
        "EncCmp2Bean",
        "ContextLookupCmpBean",
        "Cmp_RMI_IIOP_Bean",
        "RmiIiopCmp2Bean",
        "Person",
        "License",
        "ComplexPerson",
        "ComplexLicense",
        "Artist",
        "Song",
        "ComplexArtist",
        "Complexsong",
        "Game",
        "Platform",
        "ComplexGame",
        "ComplexPlatform",
        "Query",
        "QueryData",
    };

    static {
        System.setProperty("noBanner", "true");
    }


    public void createEntityTable() throws java.sql.SQLException {
        createTable(_createEntity, _dropEntity);
        createTable(CREATE_ONE_OWNING, DROP_ONE_OWNING);
        createTable(CREATE_ONE_INVERSE, DROP_ONE_INVERSE);
        createTable(CREATE_MANY_OWNING, DROP_MANY_OWNING);
        clearTables(AUTO_CREATED_TABLES);
    }

    public void dropEntityTable() throws java.sql.SQLException {
        dropTable(_dropEntity);
        dropTable(DROP_ONE_OWNING);
        dropTable(DROP_ONE_INVERSE);
        dropTable(DROP_MANY_OWNING);
        clearTables(AUTO_CREATED_TABLES);
    }

    private void createTable(final String create, final String drop) throws java.sql.SQLException {
        try {
            try {
                database.execute(drop);
            } catch (final Exception e) {
                // not concerned
            }
            database.execute(create);
        } catch (final RemoteException re) {
            if (re.detail != null && re.detail instanceof java.sql.SQLException) {
                throw (java.sql.SQLException) re.detail;
            } else {
                throw new java.sql.SQLException("Cannot create table: " + re.getMessage(), create);
            }
        }
    }

    private void clearTables(final String... autoCreatedTables) {
        for (final String tableName : autoCreatedTables) {
            try {
                database.execute("DELETE FROM " + tableName);
            } catch (final Exception e) {
                // not concerned
            }
        }
    }

    private void dropTable(final String drop) throws java.sql.SQLException {
        try {
            database.execute(drop);
        } catch (final RemoteException re) {
            if (re.detail != null && re.detail instanceof java.sql.SQLException) {
                throw (java.sql.SQLException) re.detail;
            } else {
                throw new java.sql.SQLException("Unable to drop table: " + re.getMessage(), drop);
            }
        }
    }

    public void createAccountTable() throws java.sql.SQLException {
        try {
            try {
                database.execute(_dropAccount);
            } catch (final Exception e) {
                // not concerned
            }
            database.execute(_createAccount);
        } catch (final RemoteException re) {
            if (re.detail != null && re.detail instanceof java.sql.SQLException) {
                throw (java.sql.SQLException) re.detail;
            } else {
                throw new java.sql.SQLException("Cannot create account table: " + re.getMessage(), _createAccount);
            }
        }
    }

    public void dropAccountTable() throws java.sql.SQLException {
        try {
            database.execute(_dropAccount);
        } catch (final RemoteException re) {
            if (re.detail != null && re.detail instanceof java.sql.SQLException) {
                throw (java.sql.SQLException) re.detail;
            } else {
                throw new java.sql.SQLException("Cannot drop account table: " + re.getMessage(), _dropAccount);
            }
        }
    }

    public void start() throws IllegalStateException {
        try {
            final TestServer server = TestManager.getServer();
            final Properties properties = server.getContextEnvironment();
            initialContext = new InitialContext(properties);
        } catch (final Exception e) {
            throw (IllegalStateException) new IllegalStateException("Cannot create initial context: " + e.getClass().getName() + " " + e.getMessage()).initCause(e);
        }

        final String databaseHomeJndiName = "client/tools/DatabaseHome";

        Object obj = null;
        DatabaseHome databaseHome = null;
        try {
            /* Create database */
            obj = initialContext.lookup(databaseHomeJndiName);
            databaseHome = (DatabaseHome) javax.rmi.PortableRemoteObject.narrow(obj, DatabaseHome.class);
        } catch (final Exception e) {
            throw new IllegalStateException("Cannot find " + databaseHomeJndiName + ": " + e.getClass().getName() + " " + e.getMessage());
        }
        try {
            database = databaseHome.create();
        } catch (final Exception e) {
            throw new IllegalStateException("Cannot start database: " + e.getClass().getName() + " " + e.getMessage());
        }
    }


    public void stop() throws IllegalStateException {
    }

    public void init(final Properties props) throws IllegalStateException {
    }
}