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/*******************************************************************************
* Copyright (c) 2007 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
*******************************************************************************/
package org.eclipse.jpt.eclipselink.core.ddlgen;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.Map.Entry;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import org.eclipse.jpt.eclipselink.core.internal.context.schema.generation.SchemaGeneration;
/**
* This class creates a EclipseLink <code>EntityManagerFactory</code>,
* and executes the DDL generator with the command set in the properties:
* <code>eclipselink.ddl-generation.output-mode</code>
* <code>eclipselink.application-location</code>
*
* Current command-line arguments:
* [-pu puName] - persistence unit name
* [-p propertiesFilePath] - properties for EclipseLink EntityManager
*
* Example of a properties file:
* eclipselink.jdbc.bind-parameters=false
* eclipselink.jdbc.driver=org.apache.derby.jdbc.EmbeddedDriver
* eclipselink.jdbc.url=jdbc\:derby\:c\:/derbydb/testdb;create\=true
* eclipselink.jdbc.user=tran
* eclipselink.jdbc.password=
* eclipselink.logging.level=FINEST
* eclipselink.logging.timestamp=false
* eclipselink.logging.thread=false
* eclipselink.logging.session=false
* eclipselink.logging.exceptions=true
* eclipselink.orm.throw.exceptions=true
* eclipselink.ddl-generation.output-mode=database
* eclipselink.ddl-generation=drop-and-create-tables
* eclipselink.application-location=c\:/_Projects_/ExampleDDL
*/
public class Main
{
protected EntityManagerFactory emf;
private Map<String, String> eclipseLinkProperties;
private String createDDLFileName;
private String dropDDLFileName;
private String appLocation;
private String eclipseLinkPropertiesPath;
private boolean isDebugMode;
// ********** constructors **********
public static void main(String[] args) {
new Main().execute(args);
}
private Main() {
super();
}
// ********** behavior **********
protected void execute(String[] args) {
this.initializeWith(args);
this.emf = Persistence.createEntityManagerFactory(this.getPUName(args), this.eclipseLinkProperties);
this.perform();
this.closeEntityManagerFactory();
this.dispose();
return;
}
protected void perform() {
// create an EM to generate schema.
this.emf.createEntityManager().close();
}
protected void closeEntityManagerFactory() {
this.emf.close();
}
private void initializeWith(String[] args) {
this.eclipseLinkPropertiesPath = this.getEclipseLinkPropertiesPath(args);
this.eclipseLinkProperties = this.getProperties(this.eclipseLinkPropertiesPath);
this.createDDLFileName = this.getConfigPropertyAsString(
SchemaGeneration.ECLIPSELINK_CREATE_FILE_NAME,
this.eclipseLinkProperties,
SchemaGeneration.DEFAULT_SCHEMA_GENERATION_CREATE_FILE_NAME);
this.dropDDLFileName = this.getConfigPropertyAsString(
SchemaGeneration.ECLIPSELINK_DROP_FILE_NAME,
this.eclipseLinkProperties,
SchemaGeneration.DEFAULT_SCHEMA_GENERATION_DROP_FILE_NAME);
this.appLocation = this.eclipseLinkProperties.get(
SchemaGeneration.ECLIPSELINK_APPLICATION_LOCATION);
this.isDebugMode = this.getDebugMode(args);
}
private void dispose() {
if( ! this.isDebugMode) {
new File(this.appLocation + "/" + this.createDDLFileName).delete();
new File(this.appLocation + "/" + this.dropDDLFileName).delete();
new File(this.eclipseLinkPropertiesPath).delete();
}
}
private Map<String, String> getProperties(String eclipseLinkPropertiesPath) {
Set<Entry<Object, Object>> propertiesSet = null;
try {
propertiesSet = this.loadEclipseLinkProperties(eclipseLinkPropertiesPath);
}
catch (IOException e) {
throw new RuntimeException("Missing: " + eclipseLinkPropertiesPath, e);
}
Map<String, String> properties = new HashMap<String, String>();
for(Entry<Object, Object> property : propertiesSet) {
properties.put((String)property.getKey(), (String)property.getValue());
}
return properties;
}
private Set<Entry<Object, Object>> loadEclipseLinkProperties(String eclipseLinkPropertiesPath) throws IOException {
FileInputStream stream = new FileInputStream(eclipseLinkPropertiesPath);
Properties properties = new Properties();
properties.load(stream);
return properties.entrySet();
}
// ********** argument queries **********
private String getPUName(String[] args) {
return this.getArgumentValue("-pu", args);
}
private String getEclipseLinkPropertiesPath(String[] args) {
return this.getArgumentValue("-p", args);
}
private boolean getDebugMode(String[] args) {
return this.argumentExists("-debug", args);
}
private String getArgumentValue(String argument, String[] args) {
for (int i = 0; i < args.length; i++) {
String arg = args[i];
if (arg.toLowerCase().equals(argument)) {
int j = i + 1;
if (j < args.length) {
return args[j];
}
}
}
return null;
}
private boolean argumentExists(String argument, String[] args) {
for (int i = 0; i < args.length; i++) {
String arg = args[i];
if (arg.toLowerCase().equals(argument)) {
return true;
}
}
return false;
}
// ****** utility methods *******
/**
* Check the provided map for an object with the given key. If that object is not available, check the
* System properties. If it is not available from either location, return the default value.
* @param propertyKey
* @param map
* @param defaultValue
* @return
*/
protected String getConfigPropertyAsString(String propertyKey, Map<String, String> overrides, String defaultValue){
String value = this.getConfigPropertyAsString(propertyKey, overrides);
if (value == null){
value = defaultValue;
}
return value;
}
protected String getConfigPropertyAsString(String propertyKey, Map<String, String> overrides){
String value = null;
if (overrides != null){
value = (String)overrides.get(propertyKey);
}
if (value == null){
value = System.getProperty(propertyKey);
}
return value;
}
}
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