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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.database;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.FilenameFilter;
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import java.util.ArrayList;
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import java.util.Enumeration;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Properties;
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import org.apache.log4j.Logger;
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import org.hibernate.cache.CacheProvider;
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import org.hibernate.cache.NoCacheProvider;
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import org.jdom.Attribute;
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import org.jdom.Document;
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import org.jdom.Element;
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import org.jdom.output.Format;
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import org.springframework.beans.MutablePropertyValues;
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import org.springframework.beans.factory.config.BeanDefinition;
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import org.springframework.beans.factory.config.PropertiesFactoryBean;
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import org.springframework.beans.factory.support.AbstractBeanDefinition;
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import org.springframework.beans.factory.support.RootBeanDefinition;
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import org.springframework.jdbc.datasource.DriverManagerDataSource;
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import eu.etaxonomy.cdm.api.application.CdmApplicationUtils;
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import eu.etaxonomy.cdm.common.CdmUtils;
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import eu.etaxonomy.cdm.common.XmlHelp;
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import static eu.etaxonomy.cdm.common.XmlHelp.getBeansRoot;
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import static eu.etaxonomy.cdm.common.XmlHelp.insertXmlBean;
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import static eu.etaxonomy.cdm.common.XmlHelp.insertXmlValueProperty;
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import static eu.etaxonomy.cdm.common.XmlHelp.saveToXml;
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/**
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* class to access an CdmDataSource
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*/
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public class CdmPersistentDataSource implements ICdmDataSource {
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private static final Logger logger = Logger.getLogger(CdmPersistentDataSource.class);
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public static final String DATASOURCE_BEAN_POSTFIX = "DataSource";
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public final static String DATASOURCE_FILE_NAME = "cdm.datasources.xml";
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public final static String DATASOURCE_PATH = "/eu/etaxonomy/cdm/";
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private final static Format format = Format.getPrettyFormat();
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public enum DbProperties{
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DRIVER_CLASS,
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URL,
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USERNAME,
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PASSWORD;
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@Override
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public String toString(){
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switch (this){
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case DRIVER_CLASS:
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return "driverClassName";
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case URL:
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return "url";
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case USERNAME:
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return "username";
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case PASSWORD:
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return "password";
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default:
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throw new IllegalArgumentException( "Unknown enumeration type" );
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}
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}
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}
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//name
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protected String dataSourceName;
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/**
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* Returns the default CdmDataSource
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* @return the default CdmDataSource
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*/
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public final static CdmPersistentDataSource NewDefaultInstance(){
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try {
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return NewInstance("default");
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} catch (DataSourceNotFoundException e) {
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logger.error("Default datasource does not exist in config file");
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return null;
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}
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}
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/**
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* Returns the default CdmDataSource
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* @return the default CdmDataSource
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*/
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public final static CdmPersistentDataSource NewLocalHsqlInstance(){
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try {
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return NewInstance("localDefaultHsql");
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} catch (DataSourceNotFoundException e) {
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logger.error("Local datasource does not exist in config file");
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return null;
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}
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}
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/**
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* Returns the CdmDataSource named by strDataSource
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* @param strDataSource
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* @return
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*/
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public final static CdmPersistentDataSource NewInstance(String dataSourceName)
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throws DataSourceNotFoundException{
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if (exists(dataSourceName)){
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return new CdmPersistentDataSource(dataSourceName);
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}else{
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throw new DataSourceNotFoundException("Datasource not found: " + dataSourceName);
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}
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}
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/**
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* Private Constructor. Use NewXXX factory methods for creating a new instance of CdmDataSource!
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* @param strDataSource
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*/
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private CdmPersistentDataSource(String strDataSource){
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dataSourceName = strDataSource;
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}
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/**
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* Returns the name of the bean.
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* @return
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*/
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public String getName(){
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return dataSourceName;
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}
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/**
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* Returns the name of the bean Element in the xml config file.
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* @return bean name
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*/
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private static String getBeanName(String name){
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return name == null? null : name + DATASOURCE_BEAN_POSTFIX;
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}
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public String getDatabase() {
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//TODO null
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return getDatabaseProperty("database");
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}
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public String getFilePath() {
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//TODO null
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return getDatabaseProperty("filePath");
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}
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public H2Mode getMode() {
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//TODO null
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return H2Mode.fromString(getDatabaseProperty("mode"));
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}
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public int getPort() {
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String port = CdmUtils.Nz(getDatabaseProperty("port"));
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if ("".equals(port)){
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return -1;
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}else{
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//TODO exception if non integer
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return Integer.getInteger(getDatabaseProperty("port"));
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}
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}
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public String getServer() {
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//TODO null
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return getDatabaseProperty("server");
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}
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/**
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* Returns the database type of the data source.
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* @return the database type of the data source. Null if the bean or the driver class property does not exist or the driver class is unknown.
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*/
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public DatabaseTypeEnum getDatabaseType(){
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Element bean = getDatasourceBeanXml(this.dataSourceName);
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if (bean == null){
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return null;
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}else{
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Element driverProp = XmlHelp.getFirstAttributedChild(bean, "property", "name", "driverClassName");
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if (driverProp == null){
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logger.warn("Unknown property driverClass");
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return null;
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}else{
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String strDriverClass = driverProp.getAttributeValue("value");
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DatabaseTypeEnum dbType = DatabaseTypeEnum.getDatabaseEnumByDriverClass(strDriverClass);
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return dbType;
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}
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}
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}
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/**
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* Returns the database type of the data source.
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* @return the database type of the data source. Null if the bean or the driver class property does not exist or the driver class is unknown.
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*/
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protected String getDatabaseProperty(String property){
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Element bean = getDatasourceBeanXml(this.dataSourceName);
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if (bean == null){
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return null;
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}else{
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Element driverProp = XmlHelp.getFirstAttributedChild(bean, "property", "name", property);
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if (driverProp == null){
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logger.warn("Unknown property" + property);
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return null;
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}else{
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String strProperty = driverProp.getAttributeValue("value");
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return strProperty;
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}
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}
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}
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/**
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* Returns the list of properties that are defined in the datasource
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* @return
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*/
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public List<Attribute> getDatasourceAttributes(){
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List<Attribute> result = new ArrayList<Attribute>();
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Element bean = getDatasourceBeanXml(this.dataSourceName);
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if (bean == null){
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return null;
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}else{
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result = bean.getAttributes();
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}
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return result;
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}
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/**
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* Returns a defined property of the datasource
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* @return the property of the data source. NULL if the datasource bean or the property does not exist.
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*/
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public String getDatasourceProperty(DbProperties dbProp){
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Element bean = getDatasourceBeanXml(this.dataSourceName);
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if (bean == null){
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return null;
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}else{
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Element elProperty = XmlHelp.getFirstAttributedChild(bean, "property", "name", dbProp.toString());
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if (elProperty == null){
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logger.warn("Unknown property: " + dbProp.toString());
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return null;
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}else{
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String strValue = elProperty.getAttributeValue("value");
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return strValue;
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}
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}
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}
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/**
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* Returns the list of properties that are defined in the datasource
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* @return
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*/
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public Properties getDatasourceProperties(){
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Properties result = new Properties();
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Element bean = getDatasourceBeanXml(this.dataSourceName);
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if (bean == null){
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return null;
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}else{
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List<Element> elProperties = XmlHelp.getAttributedChildList(bean, "property", "name");
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Iterator<Element> iterator = elProperties.iterator();
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while(iterator.hasNext()){
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Element next = iterator.next();
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String strName = next.getAttributeValue("name");
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String strValue = next.getAttributeValue("value");
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result.put(strName, strValue);
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}
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}
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return result;
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}
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/**
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* Returns a BeanDefinition object of type DriverManagerDataSource that contains
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* datsource properties (url, username, password, ...)
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* @return
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*/
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public BeanDefinition getDatasourceBean(){
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DatabaseTypeEnum dbtype = DatabaseTypeEnum.getDatabaseEnumByDriverClass(getDatasourceProperty(DbProperties.DRIVER_CLASS));
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AbstractBeanDefinition bd = new RootBeanDefinition(dbtype.getDriverManagerDataSourceClass());
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//attributes
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Iterator<Attribute> iterator = getDatasourceAttributes().iterator();
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while(iterator.hasNext()){
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Attribute attribute = iterator.next();
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if (attribute.getName().equals("lazy-init")){
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bd.setLazyInit(Boolean.valueOf(attribute.getValue()));
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}
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if (attribute.getName().equals("init-method")){
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bd.setInitMethodName(attribute.getValue());
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}
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if (attribute.getName().equals("destroy-method")){
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bd.setDestroyMethodName(attribute.getValue());
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}
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//Attribute attribute = iterator.next();
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//bd.setAttribute(attribute.getName(), attribute.getValue());
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}
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//properties
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MutablePropertyValues props = new MutablePropertyValues();
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Properties persistentProperties = getDatasourceProperties();
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Enumeration<String> keys = (Enumeration)persistentProperties.keys();
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while (keys.hasMoreElements()){
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String key = (String)keys.nextElement();
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props.addPropertyValue(key, persistentProperties.getProperty(key));
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}
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bd.setPropertyValues(props);
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return bd;
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}
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/**
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* @param hbm2dll
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* @param showSql
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* @return
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*/
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public BeanDefinition getHibernatePropertiesBean(DbSchemaValidation hbm2dll){
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boolean showSql = false;
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boolean formatSql = false;
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Class<? extends CacheProvider> cacheProviderClass = NoCacheProvider.class;
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return getHibernatePropertiesBean(hbm2dll, showSql, formatSql, cacheProviderClass);
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}
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/**
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* @param hbm2dll
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* @param showSql
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* @return
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*/
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public BeanDefinition getHibernatePropertiesBean(DbSchemaValidation hbm2dll, Boolean showSql, Boolean formatSql, Class<? extends CacheProvider> cacheProviderClass){
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//Hibernate default values
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if (hbm2dll == null){
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hbm2dll = DbSchemaValidation.VALIDATE;
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}
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if (showSql == null){
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showSql = false;
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}
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if (formatSql == null){
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formatSql = false;
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}
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if (cacheProviderClass == null){
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cacheProviderClass = NoCacheProvider.class;
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}
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DatabaseTypeEnum dbtype = getDatabaseType();
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AbstractBeanDefinition bd = new RootBeanDefinition(PropertiesFactoryBean.class);
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MutablePropertyValues hibernateProps = new MutablePropertyValues();
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Properties props = new Properties();
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props.setProperty("hibernate.hbm2ddl.auto", hbm2dll.toString());
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props.setProperty("hibernate.dialect", dbtype.getHibernateDialect());
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props.setProperty("hibernate.cache.provider_class", cacheProviderClass.getName());
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props.setProperty("hibernate.show_sql", String.valueOf(showSql));
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props.setProperty("hibernate.format_sql", String.valueOf(formatSql));
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hibernateProps.addPropertyValue("properties",props);
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bd.setPropertyValues(hibernateProps);
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return bd;
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}
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/**
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* Tests existing of the datsource in the according config file.
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* @return true if a datasource with the given name exists in the according datasource config file.
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*/
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public static boolean exists(String strDataSourceName){
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Element bean = getDatasourceBeanXml(strDataSourceName);
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return (bean != null);
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}
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/**
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* Saves or updates the datasource to the datasource config file.
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* Uses default port.
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* @param strDataSourceName name of the datasource (without postfix DataSource)
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* @param databaseTypeEnum
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* @param server
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* @param database
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* @param username
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* @param password
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* @return the CdmDataSource, null if not successful.
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*/
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public static CdmPersistentDataSource save(String strDataSourceName, DatabaseTypeEnum databaseTypeEnum, String server, String database,
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String username, String password){
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return save(strDataSourceName, databaseTypeEnum, server, database,
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databaseTypeEnum.getDefaultPort(), username, password);
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}
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/**
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* Saves or updates the datasource to the datasource config file.
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* @param strDataSourceName name of the datasource (without postfix DataSource)
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* @param databaseTypeEnum
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* @param server
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* @param database
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* @param port
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* @param username
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* @param password
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* @return the CdmDataSource, null if not successful.
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*/
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public static CdmPersistentDataSource save(String strDataSourceName, DatabaseTypeEnum databaseTypeEnum, String server, String database,
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int port, String username, String password){
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Class<? extends DriverManagerDataSource> driverManagerDataSource = DriverManagerDataSource.class;
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return save(strDataSourceName, databaseTypeEnum, server, database, port, username, password, driverManagerDataSource, null, null, null, null, null, null);
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}
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422
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public static CdmPersistentDataSource saveLocalHsqlDb(String strDataSourceName, String databasePath, String databaseName, String username, String password){
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DatabaseTypeEnum databaseTypeEnum = DatabaseTypeEnum.HSqlDb;
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Class<? extends DriverManagerDataSource> driverManagerDataSource = LocalHsqldb.class;
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String server = "localhost";
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int port = databaseTypeEnum.getDefaultPort();
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return save(strDataSourceName, databaseTypeEnum, server, databaseName, port, username, password, driverManagerDataSource, "init", "destroy", true, true, databasePath, null);
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}
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//
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432
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private static CdmPersistentDataSource save(String strDataSourceName,
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433
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DatabaseTypeEnum databaseTypeEnum,
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String server,
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String database,
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int port,
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String username,
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String password,
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Class<? extends DriverManagerDataSource> driverManagerDataSource,
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String initMethod,
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String destroyMethod,
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Boolean startSilent,
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Boolean startServer,
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String filePath,
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H2Mode mode
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){
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ICdmDataSource dataSource = new CdmDataSource(databaseTypeEnum, server, database, port, username, password, filePath, mode);
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//root
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Element root = getBeansRoot(getDataSourceInputStream());
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if (root == null){
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return null;
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}
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//bean
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Element bean = XmlHelp.getFirstAttributedChild(root, "bean", "id", getBeanName(strDataSourceName));
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if (bean != null){
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bean.detach(); //delete old version if necessary
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}
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bean = insertXmlBean(root, getBeanName(strDataSourceName), driverManagerDataSource.getName());
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//attributes
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bean.setAttribute("lazy-init", "true");
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if (initMethod != null) {bean.setAttribute("init-method", initMethod);}
|
463
|
if (destroyMethod != null) {bean.setAttribute("destroy-method", destroyMethod);}
|
464
|
|
465
|
//set properties
|
466
|
insertXmlValueProperty(bean, "driverClassName", databaseTypeEnum.getDriverClassName());
|
467
|
|
468
|
insertXmlValueProperty(bean, "url", databaseTypeEnum.getConnectionString(dataSource));
|
469
|
if (username != null) {insertXmlValueProperty(bean, "username", username );}
|
470
|
if (password != null) {insertXmlValueProperty(bean, "password", password );}
|
471
|
if (startSilent != null) {insertXmlValueProperty(bean, "startSilent", startSilent.toString() );}
|
472
|
if (startServer != null) {insertXmlValueProperty(bean, "startServer", startServer.toString() );}
|
473
|
if (filePath != null) {insertXmlValueProperty(bean, "filePath", filePath );}
|
474
|
if (mode != null) {insertXmlValueProperty(bean, "mode", mode.toString() );}
|
475
|
|
476
|
//save
|
477
|
saveToXml(root.getDocument(), getResourceDirectory(), DATASOURCE_FILE_NAME, format );
|
478
|
try {
|
479
|
return NewInstance(strDataSourceName) ;
|
480
|
} catch (DataSourceNotFoundException e) {
|
481
|
logger.error("Error when saving datasource");
|
482
|
return null;
|
483
|
}
|
484
|
}
|
485
|
|
486
|
|
487
|
/**
|
488
|
* Deletes a dataSource
|
489
|
* @param dataSource
|
490
|
*/
|
491
|
public static void delete (CdmPersistentDataSource dataSource){
|
492
|
Element bean = getDatasourceBeanXml(dataSource.getName());
|
493
|
if (bean != null){
|
494
|
Document doc = bean.getDocument();
|
495
|
bean.detach();
|
496
|
saveToXml(doc, getDataSourceOutputStream(), format );
|
497
|
}
|
498
|
}
|
499
|
|
500
|
|
501
|
/**
|
502
|
* Returns a list of all datasources stored in the datasource config file
|
503
|
* @return all existing data sources
|
504
|
*/
|
505
|
static public List<CdmPersistentDataSource> getAllDataSources(){
|
506
|
List<CdmPersistentDataSource> dataSources = new ArrayList<CdmPersistentDataSource>();
|
507
|
|
508
|
Element root = getBeansRoot(getDataSourceInputStream());
|
509
|
if (root == null){
|
510
|
return null;
|
511
|
}else{
|
512
|
List<Element> lsChildren = root.getChildren("bean", root.getNamespace());
|
513
|
|
514
|
for (Element elBean : lsChildren){
|
515
|
String strId = elBean.getAttributeValue("id");
|
516
|
if (strId != null && strId.endsWith(DATASOURCE_BEAN_POSTFIX)){
|
517
|
strId = strId.replace(DATASOURCE_BEAN_POSTFIX, "");
|
518
|
dataSources.add(new CdmPersistentDataSource(strId));
|
519
|
}
|
520
|
}
|
521
|
}
|
522
|
return dataSources;
|
523
|
}
|
524
|
|
525
|
|
526
|
/* (non-Javadoc)
|
527
|
* @see java.lang.Object#toString()
|
528
|
*/
|
529
|
public String toString(){
|
530
|
if (this.dataSourceName != null){
|
531
|
return dataSourceName;
|
532
|
}else{
|
533
|
return null;
|
534
|
}
|
535
|
}
|
536
|
|
537
|
|
538
|
|
539
|
/**
|
540
|
* Returns the datasource config file input stream.
|
541
|
* @return data source config file input stream
|
542
|
*/
|
543
|
static protected FileInputStream getDataSourceInputStream(){
|
544
|
String dir = getResourceDirectory();
|
545
|
File file = new File(dir + File.separator + DATASOURCE_FILE_NAME);
|
546
|
return fileInputStream(file);
|
547
|
}
|
548
|
|
549
|
|
550
|
/**
|
551
|
* Returns the datasource config file outputStream.
|
552
|
* @return data source config file outputStream
|
553
|
*/
|
554
|
static protected FileOutputStream getDataSourceOutputStream(){
|
555
|
String dir = getResourceDirectory();
|
556
|
File file = new File(dir + File.separator + DATASOURCE_FILE_NAME);
|
557
|
return fileOutputStream(file);
|
558
|
}
|
559
|
|
560
|
/**
|
561
|
* Returns the jdom Element representing the data source bean in the config file.
|
562
|
* @return
|
563
|
*/
|
564
|
private static Element getDatasourceBeanXml(String strDataSourceName){
|
565
|
FileInputStream inStream = getDataSourceInputStream();
|
566
|
Element root = getBeansRoot(inStream);
|
567
|
if (root == null){
|
568
|
return null;
|
569
|
}else{
|
570
|
Element xmlBean = XmlHelp.getFirstAttributedChild(root, "bean", "id", getBeanName(strDataSourceName));
|
571
|
if (xmlBean == null){
|
572
|
//TODO warn or info
|
573
|
logger.debug("Unknown Element 'bean id=" +strDataSourceName + "' ");
|
574
|
};
|
575
|
return xmlBean;
|
576
|
}
|
577
|
}
|
578
|
|
579
|
// returns the directory containing the resources
|
580
|
private static String getResourceDirectory(){
|
581
|
File f = CdmApplicationUtils.getWritableResourceDir();
|
582
|
return f.getPath();
|
583
|
}
|
584
|
|
585
|
static private FileInputStream fileInputStream(File file){
|
586
|
try {
|
587
|
FileInputStream fis = new FileInputStream(file);
|
588
|
return fis;
|
589
|
} catch (FileNotFoundException e) {
|
590
|
logger.warn("File " + file == null?"null":file.getAbsolutePath() + " does not exist in the file system");
|
591
|
return null;
|
592
|
}
|
593
|
}
|
594
|
|
595
|
static private FileOutputStream fileOutputStream(File file){
|
596
|
try {
|
597
|
FileOutputStream fos = new FileOutputStream(file);
|
598
|
return fos;
|
599
|
} catch (FileNotFoundException e) {
|
600
|
logger.warn("File " + (file == null?"null":file.getAbsolutePath()) + " does not exist in the file system");
|
601
|
return null;
|
602
|
}
|
603
|
}
|
604
|
|
605
|
|
606
|
/**
|
607
|
* Filter class to define datasource file format
|
608
|
*/
|
609
|
private static class DataSourceFileNameFilter implements FilenameFilter{
|
610
|
public boolean accept(File dir, String name) {
|
611
|
return (name.endsWith(DATASOURCE_FILE_NAME));
|
612
|
}
|
613
|
}
|
614
|
|
615
|
public boolean equals(Object obj){
|
616
|
if (obj == null){
|
617
|
return false;
|
618
|
}else if (! CdmPersistentDataSource.class.isAssignableFrom(obj.getClass())){
|
619
|
return false;
|
620
|
}else{
|
621
|
CdmPersistentDataSource dataSource = (CdmPersistentDataSource)obj;
|
622
|
return (this.dataSourceName == dataSource.dataSourceName);
|
623
|
}
|
624
|
|
625
|
}
|
626
|
}
|