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DataSourceProperties.java
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DataSourceProperties.java
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/*
* Copyright 2012-2022 the original author or authors.
*
* 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
*
* https://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.springframework.boot.autoconfigure.jdbc;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.UUID;
import javax.sql.DataSource;
import org.springframework.beans.factory.BeanClassLoaderAware;
import org.springframework.beans.factory.BeanCreationException;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.boot.jdbc.DatabaseDriver;
import org.springframework.boot.jdbc.EmbeddedDatabaseConnection;
import org.springframework.util.Assert;
import org.springframework.util.ClassUtils;
import org.springframework.util.StringUtils;
/**
* Base class for configuration of a data source.
*
* @author Dave Syer
* @author Maciej Walkowiak
* @author Stephane Nicoll
* @author Benedikt Ritter
* @author Eddú Meléndez
* @author Scott Frederick
* @since 1.1.0
*/
@ConfigurationProperties(prefix = "spring.datasource")
public class DataSourceProperties implements BeanClassLoaderAware, InitializingBean {
private ClassLoader classLoader;
/**
* Whether to generate a random datasource name.
*/
private boolean generateUniqueName = true;
/**
* Datasource name to use if "generate-unique-name" is false. Defaults to "testdb"
* when using an embedded database, otherwise null.
*/
private String name;
/**
* Fully qualified name of the connection pool implementation to use. By default, it
* is auto-detected from the classpath.
*/
private Class<? extends DataSource> type;
/**
* Fully qualified name of the JDBC driver. Auto-detected based on the URL by default.
*/
private String driverClassName;
/**
* JDBC URL of the database.
*/
private String url;
/**
* Login username of the database.
*/
private String username;
/**
* Login password of the database.
*/
private String password;
/**
* JNDI location of the datasource. Class, url, username and password are ignored when
* set.
*/
private String jndiName;
/**
* Connection details for an embedded database. Defaults to the most suitable embedded
* database that is available on the classpath.
*/
private EmbeddedDatabaseConnection embeddedDatabaseConnection;
private Xa xa = new Xa();
private String uniqueName;
@Override
public void setBeanClassLoader(ClassLoader classLoader) {
this.classLoader = classLoader;
}
@Override
public void afterPropertiesSet() throws Exception {
if (this.embeddedDatabaseConnection == null) {
this.embeddedDatabaseConnection = EmbeddedDatabaseConnection.get(this.classLoader);
}
}
/**
* Initialize a {@link DataSourceBuilder} with the state of this instance.
* @return a {@link DataSourceBuilder} initialized with the customizations defined on
* this instance
*/
public DataSourceBuilder<?> initializeDataSourceBuilder() {
return DataSourceBuilder.create(getClassLoader()).type(getType()).driverClassName(determineDriverClassName())
.url(determineUrl()).username(determineUsername()).password(determinePassword());
}
public boolean isGenerateUniqueName() {
return this.generateUniqueName;
}
public void setGenerateUniqueName(boolean generateUniqueName) {
this.generateUniqueName = generateUniqueName;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public Class<? extends DataSource> getType() {
return this.type;
}
public void setType(Class<? extends DataSource> type) {
this.type = type;
}
/**
* Return the configured driver or {@code null} if none was configured.
* @return the configured driver
* @see #determineDriverClassName()
*/
public String getDriverClassName() {
return this.driverClassName;
}
public void setDriverClassName(String driverClassName) {
this.driverClassName = driverClassName;
}
/**
* Determine the driver to use based on this configuration and the environment.
* @return the driver to use
* @since 1.4.0
*/
public String determineDriverClassName() {
if (StringUtils.hasText(this.driverClassName)) {
Assert.state(driverClassIsLoadable(), () -> "Cannot load driver class: " + this.driverClassName);
return this.driverClassName;
}
String driverClassName = null;
if (StringUtils.hasText(this.url)) {
driverClassName = DatabaseDriver.fromJdbcUrl(this.url).getDriverClassName();
}
if (!StringUtils.hasText(driverClassName)) {
driverClassName = this.embeddedDatabaseConnection.getDriverClassName();
}
if (!StringUtils.hasText(driverClassName)) {
throw new DataSourceBeanCreationException("Failed to determine a suitable driver class", this,
this.embeddedDatabaseConnection);
}
return driverClassName;
}
private boolean driverClassIsLoadable() {
try {
ClassUtils.forName(this.driverClassName, null);
return true;
}
catch (UnsupportedClassVersionError ex) {
// Driver library has been compiled with a later JDK, propagate error
throw ex;
}
catch (Throwable ex) {
return false;
}
}
/**
* Return the configured url or {@code null} if none was configured.
* @return the configured url
* @see #determineUrl()
*/
public String getUrl() {
return this.url;
}
public void setUrl(String url) {
this.url = url;
}
/**
* Determine the url to use based on this configuration and the environment.
* @return the url to use
* @since 1.4.0
*/
public String determineUrl() {
if (StringUtils.hasText(this.url)) {
return this.url;
}
String databaseName = determineDatabaseName();
String url = (databaseName != null) ? this.embeddedDatabaseConnection.getUrl(databaseName) : null;
if (!StringUtils.hasText(url)) {
throw new DataSourceBeanCreationException("Failed to determine suitable jdbc url", this,
this.embeddedDatabaseConnection);
}
return url;
}
/**
* Determine the name to used based on this configuration.
* @return the database name to use or {@code null}
* @since 2.0.0
*/
public String determineDatabaseName() {
if (this.generateUniqueName) {
if (this.uniqueName == null) {
this.uniqueName = UUID.randomUUID().toString();
}
return this.uniqueName;
}
if (StringUtils.hasLength(this.name)) {
return this.name;
}
if (this.embeddedDatabaseConnection != EmbeddedDatabaseConnection.NONE) {
return "testdb";
}
return null;
}
/**
* Return the configured username or {@code null} if none was configured.
* @return the configured username
* @see #determineUsername()
*/
public String getUsername() {
return this.username;
}
public void setUsername(String username) {
this.username = username;
}
/**
* Determine the username to use based on this configuration and the environment.
* @return the username to use
* @since 1.4.0
*/
public String determineUsername() {
if (StringUtils.hasText(this.username)) {
return this.username;
}
if (EmbeddedDatabaseConnection.isEmbedded(determineDriverClassName(), determineUrl())) {
return "sa";
}
return null;
}
/**
* Return the configured password or {@code null} if none was configured.
* @return the configured password
* @see #determinePassword()
*/
public String getPassword() {
return this.password;
}
public void setPassword(String password) {
this.password = password;
}
/**
* Determine the password to use based on this configuration and the environment.
* @return the password to use
* @since 1.4.0
*/
public String determinePassword() {
if (StringUtils.hasText(this.password)) {
return this.password;
}
if (EmbeddedDatabaseConnection.isEmbedded(determineDriverClassName(), determineUrl())) {
return "";
}
return null;
}
public String getJndiName() {
return this.jndiName;
}
/**
* Allows the DataSource to be managed by the container and obtained via JNDI. The
* {@code URL}, {@code driverClassName}, {@code username} and {@code password} fields
* will be ignored when using JNDI lookups.
* @param jndiName the JNDI name
*/
public void setJndiName(String jndiName) {
this.jndiName = jndiName;
}
public EmbeddedDatabaseConnection getEmbeddedDatabaseConnection() {
return this.embeddedDatabaseConnection;
}
public void setEmbeddedDatabaseConnection(EmbeddedDatabaseConnection embeddedDatabaseConnection) {
this.embeddedDatabaseConnection = embeddedDatabaseConnection;
}
public ClassLoader getClassLoader() {
return this.classLoader;
}
public Xa getXa() {
return this.xa;
}
public void setXa(Xa xa) {
this.xa = xa;
}
/**
* XA Specific datasource settings.
*/
public static class Xa {
/**
* XA datasource fully qualified name.
*/
private String dataSourceClassName;
/**
* Properties to pass to the XA data source.
*/
private Map<String, String> properties = new LinkedHashMap<>();
public String getDataSourceClassName() {
return this.dataSourceClassName;
}
public void setDataSourceClassName(String dataSourceClassName) {
this.dataSourceClassName = dataSourceClassName;
}
public Map<String, String> getProperties() {
return this.properties;
}
public void setProperties(Map<String, String> properties) {
this.properties = properties;
}
}
static class DataSourceBeanCreationException extends BeanCreationException {
private final DataSourceProperties properties;
private final EmbeddedDatabaseConnection connection;
DataSourceBeanCreationException(String message, DataSourceProperties properties,
EmbeddedDatabaseConnection connection) {
super(message);
this.properties = properties;
this.connection = connection;
}
DataSourceProperties getProperties() {
return this.properties;
}
EmbeddedDatabaseConnection getConnection() {
return this.connection;
}
}
}