/*
* ModeShape (http://www.modeshape.org)
*
* Licensed 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.modeshape.connector.meta.jdbc;
import java.beans.PropertyVetoException;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.sql.Connection;
import java.sql.Statement;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;
import org.modeshape.jcr.store.DataSourceConfig;
import com.mchange.v2.c3p0.ComboPooledDataSource;
import static org.hamcrest.core.Is.is;
import static org.hamcrest.core.IsNull.notNullValue;
import static org.junit.Assert.assertThat;
/**
* Test helper which executes DDL statements from a file against a given datasource.
*/
public class DatasourceHelper {
private static final DataSourceConfig DATA_SOURCE_CONFIG = new DataSourceConfig();
private static ComboPooledDataSource dataSource;
private static boolean print = false;
/**
* Sets a flag which allows debug-type information to be printed.
*
* @param print a boolean flag
*/
public static void setPrint( boolean print ) {
DatasourceHelper.print = print;
}
/**
* Runs the ddl contained in the given filename, against the given data source.
*
* @param fileName a non-null string
* @throws Exception if anything fails
*/
public static void executeDdl( String fileName ) throws Exception {
Connection conn = null;
Statement stmt = null;
InputStream istream = null;
BufferedReader reader = null;
try {
conn = dataSource.getConnection();
stmt = conn.createStatement();
String filePath = "/" + DATA_SOURCE_CONFIG.getDatabase() + "/" + fileName;
istream = DatasourceHelper.class.getResourceAsStream(filePath);
assertThat(filePath + " cannot be found", istream, is(notNullValue()));
reader = new BufferedReader(new InputStreamReader(istream));
/*
* We have to send the DDL line-at-a-time because the MySQL driver doesn't like getting multiple DDL statements at once
*/
String line;
while ((line = reader.readLine()) != null) {
line = line.trim();
if (line.length() > 0 && !line.startsWith("--")) {
if (print) {
System.out.println("Executing: " + line);
}
stmt.execute(line);
}
}
} finally {
if (stmt != null) {
try {
stmt.close();
} catch (Exception ignore) {
}
}
if (conn != null) {
try {
conn.close();
} catch (Exception ignore) {
}
}
if (istream != null) {
try {
istream.close();
} catch (Exception ignore) {
}
}
}
}
/**
* Creates a data source using C3P0.
*
* @return a {@link DataSource} instance, never {@code null}
*/
public static DataSource getDataSource() {
if (dataSource == null) {
dataSource = new ComboPooledDataSource();
try {
dataSource.setDriverClass(DATA_SOURCE_CONFIG.getDriverClassName());
dataSource.setJdbcUrl(DATA_SOURCE_CONFIG.getUrl());
dataSource.setUser(DATA_SOURCE_CONFIG.getUsername());
dataSource.setPassword(DATA_SOURCE_CONFIG.getPassword());
dataSource.setMaxStatements(DATA_SOURCE_CONFIG.getMaximumSizeOfStatementsCache());
dataSource.setAcquireRetryAttempts(DATA_SOURCE_CONFIG.getRetryLimit());
dataSource.setMaxIdleTime(DATA_SOURCE_CONFIG.getMaximumConnectionIdleTimeInSeconds());
dataSource.setAcquireIncrement(DATA_SOURCE_CONFIG.getNumberOfConnectionsToAcquireAsNeeded());
dataSource.setMinPoolSize(DATA_SOURCE_CONFIG.getMinimumConnectionsInPool());
dataSource.setMaxPoolSize(DATA_SOURCE_CONFIG.getMaximumConnectionsInPool());
} catch (PropertyVetoException pve) {
throw new RuntimeException(pve);
}
}
return dataSource;
}
public static void bindInJNDI( String name ) throws NamingException {
// Create initial context
System.setProperty(Context.INITIAL_CONTEXT_FACTORY, "org.apache.commons.naming.java.javaURLContextFactory");
System.setProperty(Context.URL_PKG_PREFIXES, "org.apache.naming");
InitialContext ic = new InitialContext();
ic.createSubcontext("java:");
ic.bind("java:/" + name, dataSource);
}
public static void closeDataSource() {
dataSource.close();
}
}