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Promote ConnectionFactoryBuilder to the "spring-boot" module
Closes gh-25492
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155 changes: 155 additions & 0 deletions
155
...ava/org/springframework/boot/autoconfigure/r2dbc/ConnectionFactoryOptionsInitializer.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,155 @@ | ||
| /* | ||
| * Copyright 2012-2021 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. | ||
| */ | ||
|
|
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| package org.springframework.boot.autoconfigure.r2dbc; | ||
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| import java.util.function.Predicate; | ||
| import java.util.function.Supplier; | ||
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| import io.r2dbc.spi.ConnectionFactoryOptions; | ||
| import io.r2dbc.spi.ConnectionFactoryOptions.Builder; | ||
| import io.r2dbc.spi.Option; | ||
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| import org.springframework.beans.factory.BeanCreationException; | ||
| import org.springframework.boot.r2dbc.EmbeddedDatabaseConnection; | ||
| import org.springframework.util.StringUtils; | ||
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| /** | ||
| * Initialize a {@link ConnectionFactoryOptions.Builder} based on {@link R2dbcProperties}. | ||
| * | ||
| * @author Stephane Nicoll | ||
| */ | ||
| class ConnectionFactoryOptionsInitializer { | ||
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| /** | ||
| * Initialize a {@link io.r2dbc.spi.ConnectionFactoryOptions.Builder | ||
| * ConnectionFactoryOptions.Builder} using the specified properties. | ||
| * @param properties the properties to use to initialize the builder | ||
| * @param embeddedDatabaseConnection the embedded connection to use as a fallback | ||
| * @return an initialized builder | ||
| * @throws ConnectionFactoryBeanCreationException if no suitable connection could be | ||
| * determined | ||
| */ | ||
| ConnectionFactoryOptions.Builder initialize(R2dbcProperties properties, | ||
| Supplier<EmbeddedDatabaseConnection> embeddedDatabaseConnection) { | ||
| if (StringUtils.hasText(properties.getUrl())) { | ||
| return initializeRegularOptions(properties); | ||
| } | ||
| EmbeddedDatabaseConnection embeddedConnection = embeddedDatabaseConnection.get(); | ||
| if (embeddedConnection != EmbeddedDatabaseConnection.NONE) { | ||
| return initializeEmbeddedOptions(properties, embeddedConnection); | ||
| } | ||
| throw connectionFactoryBeanCreationException("Failed to determine a suitable R2DBC Connection URL", properties, | ||
| embeddedConnection); | ||
| } | ||
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| private ConnectionFactoryOptions.Builder initializeRegularOptions(R2dbcProperties properties) { | ||
| ConnectionFactoryOptions urlOptions = ConnectionFactoryOptions.parse(properties.getUrl()); | ||
| Builder optionsBuilder = urlOptions.mutate(); | ||
| configureIf(optionsBuilder, urlOptions, ConnectionFactoryOptions.USER, properties::getUsername, | ||
| StringUtils::hasText); | ||
| configureIf(optionsBuilder, urlOptions, ConnectionFactoryOptions.PASSWORD, properties::getPassword, | ||
| StringUtils::hasText); | ||
| configureIf(optionsBuilder, urlOptions, ConnectionFactoryOptions.DATABASE, | ||
| () -> determineDatabaseName(properties), StringUtils::hasText); | ||
| if (properties.getProperties() != null) { | ||
| properties.getProperties().forEach((key, value) -> optionsBuilder.option(Option.valueOf(key), value)); | ||
| } | ||
| return optionsBuilder; | ||
| } | ||
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| private Builder initializeEmbeddedOptions(R2dbcProperties properties, | ||
| EmbeddedDatabaseConnection embeddedDatabaseConnection) { | ||
| String url = embeddedDatabaseConnection.getUrl(determineEmbeddedDatabaseName(properties)); | ||
| if (url == null) { | ||
| throw connectionFactoryBeanCreationException("Failed to determine a suitable R2DBC Connection URL", | ||
| properties, embeddedDatabaseConnection); | ||
| } | ||
| Builder builder = ConnectionFactoryOptions.parse(url).mutate(); | ||
| String username = determineEmbeddedUsername(properties); | ||
| if (StringUtils.hasText(username)) { | ||
| builder.option(ConnectionFactoryOptions.USER, username); | ||
| } | ||
| if (StringUtils.hasText(properties.getPassword())) { | ||
| builder.option(ConnectionFactoryOptions.PASSWORD, properties.getPassword()); | ||
| } | ||
| return builder; | ||
| } | ||
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| private String determineDatabaseName(R2dbcProperties properties) { | ||
| if (properties.isGenerateUniqueName()) { | ||
| return properties.determineUniqueName(); | ||
| } | ||
| if (StringUtils.hasLength(properties.getName())) { | ||
| return properties.getName(); | ||
| } | ||
| return null; | ||
| } | ||
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| private String determineEmbeddedDatabaseName(R2dbcProperties properties) { | ||
| String databaseName = determineDatabaseName(properties); | ||
| return (databaseName != null) ? databaseName : "testdb"; | ||
| } | ||
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| private String determineEmbeddedUsername(R2dbcProperties properties) { | ||
| String username = ifHasText(properties.getUsername()); | ||
| return (username != null) ? username : "sa"; | ||
| } | ||
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| private <T extends CharSequence> void configureIf(Builder optionsBuilder, ConnectionFactoryOptions originalOptions, | ||
| Option<T> option, Supplier<T> valueSupplier, Predicate<T> setIf) { | ||
| if (originalOptions.hasOption(option)) { | ||
| return; | ||
| } | ||
| T value = valueSupplier.get(); | ||
| if (setIf.test(value)) { | ||
| optionsBuilder.option(option, value); | ||
| } | ||
| } | ||
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| private ConnectionFactoryBeanCreationException connectionFactoryBeanCreationException(String message, | ||
| R2dbcProperties properties, EmbeddedDatabaseConnection embeddedDatabaseConnection) { | ||
| return new ConnectionFactoryBeanCreationException(message, properties, embeddedDatabaseConnection); | ||
| } | ||
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| private String ifHasText(String candidate) { | ||
| return (StringUtils.hasText(candidate)) ? candidate : null; | ||
| } | ||
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| static class ConnectionFactoryBeanCreationException extends BeanCreationException { | ||
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| private final R2dbcProperties properties; | ||
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| private final EmbeddedDatabaseConnection embeddedDatabaseConnection; | ||
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| ConnectionFactoryBeanCreationException(String message, R2dbcProperties properties, | ||
| EmbeddedDatabaseConnection embeddedDatabaseConnection) { | ||
| super(message); | ||
| this.properties = properties; | ||
| this.embeddedDatabaseConnection = embeddedDatabaseConnection; | ||
| } | ||
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| EmbeddedDatabaseConnection getEmbeddedDatabaseConnection() { | ||
| return this.embeddedDatabaseConnection; | ||
| } | ||
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| R2dbcProperties getProperties() { | ||
| return this.properties; | ||
| } | ||
|
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| } | ||
|
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| } |
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