/*
* Copyright 2012-2017 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
*
* 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.springframework.boot.actuate.endpoint;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import javax.sql.DataSource;
import liquibase.changelog.StandardChangeLogHistoryService;
import liquibase.database.Database;
import liquibase.database.DatabaseFactory;
import liquibase.database.jvm.JdbcConnection;
import liquibase.integration.spring.SpringLiquibase;
import org.springframework.boot.actuate.endpoint.LiquibaseEndpoint.LiquibaseReport;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.util.Assert;
/**
* {@link Endpoint} to expose liquibase info.
*
* @author EddĂș MelĂ©ndez
* @since 1.3.0
*/
@ConfigurationProperties(prefix = "endpoints.liquibase")
public class LiquibaseEndpoint extends AbstractEndpoint<List<LiquibaseReport>> {
private final Map<String, SpringLiquibase> liquibases;
public LiquibaseEndpoint(SpringLiquibase liquibase) {
this(Collections.singletonMap("default", liquibase));
}
public LiquibaseEndpoint(Map<String, SpringLiquibase> liquibases) {
super("liquibase");
Assert.notEmpty(liquibases, "Liquibases must be specified");
this.liquibases = liquibases;
}
@Override
public List<LiquibaseReport> invoke() {
List<LiquibaseReport> reports = new ArrayList<>();
DatabaseFactory factory = DatabaseFactory.getInstance();
StandardChangeLogHistoryService service = new StandardChangeLogHistoryService();
for (Map.Entry<String, SpringLiquibase> entry : this.liquibases.entrySet()) {
try {
DataSource dataSource = entry.getValue().getDataSource();
JdbcConnection connection = new JdbcConnection(
dataSource.getConnection());
try {
Database database = factory
.findCorrectDatabaseImplementation(connection);
reports.add(new LiquibaseReport(entry.getKey(),
service.queryDatabaseChangeLogTable(database)));
}
finally {
connection.close();
}
}
catch (Exception ex) {
throw new IllegalStateException("Unable to get Liquibase changelog", ex);
}
}
return reports;
}
/**
* Liquibase report for one datasource.
*/
public static class LiquibaseReport {
private final String name;
private final List<Map<String, ?>> changeLogs;
public LiquibaseReport(String name, List<Map<String, ?>> changeLogs) {
this.name = name;
this.changeLogs = changeLogs;
}
public String getName() {
return this.name;
}
public List<Map<String, ?>> getChangeLogs() {
return this.changeLogs;
}
}
}