/*
* SonarQube
* Copyright (C) 2009-2017 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.api;
import org.sonar.api.batch.ScannerSide;
import org.sonar.api.batch.sensor.Sensor;
import org.sonar.api.batch.sensor.SensorContext;
import org.sonar.api.ce.ComputeEngineSide;
import org.sonar.api.server.ServerSide;
import org.sonar.api.utils.Version;
import org.sonarsource.api.sonarlint.SonarLintSide;
/**
* Information about runtime environment.
*
* <p>
* A usage for plugins is to benefit from new APIs
* while keeping backward-compatibility with previous versions of SonarQube
* or SonarLint.
* </p>
*
* <p>
* Example: a plugin extension wants to use a new feature of API 6.1 without
* breaking compatibility with version 6.0 at runtime. This new feature
* would be enabled only in 6.1 and greater runtimes.
* </p>
* <pre>
* // Component provided by sonar-plugin-api
* // @since 6.0
* public interface AnApi {
* // implicitly since 6.0
* public void foo();
*
* // @since 6.1
* public void bar();
* }
*
* // Plugin extension
* public class MyExtension {
* private final SonarRuntime sonarRuntime;
* private final AnApi api;
*
* public MyExtension(SonarRuntime sonarRuntime, AnApi api) {
* this.sonarRuntime = sonarRuntime;
* this.api = api;
* }
*
* public void doSomething() {
* // assume that minimal supported runtime is 6.0
* api.foo();
*
* if (sonarRuntime.getApiVersion().isGreaterThanOrEqual(Version.create(6, 1))) {
* api.bar();
* }
* }
* }
* </pre>
*
*
* <p>
* Note that {@link Sensor} extensions can directly get {@link SonarRuntime} through
* {@link SensorContext#runtime()}, without using constructor injection:
* </p>
* <pre>
* public class MySensor implements Sensor {
*
* public void execute(SensorContext context) {
* if (context.runtime().getApiVersion().isGreaterThanOrEqual(Version.create(6, 1)) {
* context.newMethodIntroducedIn6_0();
* }
* }
*
* }
* </pre>
*
* <p>
* The minimal supported version of plugin API is verified at runtime. As plugin is built
* with sonar-plugin-api 6.1, we assume that the plugin requires v6.1 or greater at runtime.
* For this reason the plugin must override the minimal supported version
* in the configuration of sonar-packaging-maven-plugin 1.16+:
* <p>
* <pre>
* <packaging>sonar-plugin</packaging>
*
* <dependencies>
* <dependency>
* <groupId>org.sonarsource.sonarqube</groupId>
* <artifactId>sonar-plugin-api</artifactId>
* <version>6.1</version>
* <scope>provided</scope>
* </dependency>
* </dependencies>
*
* <build>
* <plugins>
* <plugin>
* <groupId>org.sonarsource.sonar-packaging-maven-plugin</groupId>
* <artifactId>sonar-packaging-maven-plugin</artifactId>
* <version>1.16</version>
* <extensions>true</extensions>
* <configuration>
* <!-- Override the default value 6.0 which is guessed from sonar-plugin-api dependency -->
* <sonarQubeMinVersion>6.0</sonarQubeMinVersion>
* </configuration>
* </plugin>
* </plugins>
* </build>
* </pre>
*
* <p>
* As this component was introduced in version 6.0, the pattern described above can't be
* exactly applied when plugin must support version 5.6 Long Term Support. In this case plugin
* should use {@link SonarQubeVersion}, for example through {@link Plugin.Context#getSonarQubeVersion()} or
* {@link SensorContext#getSonarQubeVersion()}.
* </p>
*
* <p>
* Unit tests of plugin extensions can create instances of {@link SonarRuntime}
* via {@link org.sonar.api.internal.SonarRuntimeImpl}.
* </p>
* @since 6.0
*/
@ScannerSide
@ServerSide
@ComputeEngineSide
@SonarLintSide
public interface SonarRuntime {
/**
* Version of API (sonar-plugin-api artifact) at runtime.
* It can be helpful to call some API classes/methods without checking their availability at
* runtime by using reflection.
* <br/>
* Since 6.3, the returned version includes the build number in the fourth field, for
* example {@code "6.3.0.12345"}.
*/
Version getApiVersion();
/**
* The product being executed at runtime. It targets analysers so that they can implement
* different behaviours in SonarQube and SonarLint.
*/
SonarProduct getProduct();
/**
* The SonarQube stack being executed at runtime.
* @throws UnsupportedOperationException if {@link #getProduct()} is not equal to {@link SonarProduct#SONARQUBE}
*/
SonarQubeSide getSonarQubeSide();
}