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commit 0f8a7cae79e91e456638f3cd5ad5bbcdeb49acdc Author: Robert Munteanu <[email protected]> AuthorDate: Fri Sep 4 15:28:31 2020 +0200 Add an instance-stopper module --- instance-stopper/README.md | 14 ++++++ instance-stopper/pom.xml | 58 ++++++++++++++++++++++ .../sling/is/impl/SystemReadyInstanceStopper.java | 46 +++++++++++++++++ 3 files changed, 118 insertions(+) diff --git a/instance-stopper/README.md b/instance-stopper/README.md new file mode 100644 index 0000000..33f5e52 --- /dev/null +++ b/instance-stopper/README.md @@ -0,0 +1,14 @@ +[<img src="https://sling.apache.org/res/logos/sling.png"/>](https://sling.apache.org) + +# Apache Sling Instance Stopper + +This module is part of the [Apache Sling](https://sling.apache.org) project. + +The instance stopper allows an instance to the shut down as soon as it is considered ready. +The main scenario is part of the tooling for setting up a [CompositeNodeStore](https://jackrabbit.apache.org/oak/docs/nodestore/compositens.html). + +The readiness check is delegated to the [Felix HealthChecks](https://github.com/apache/felix-dev/tree/master/healthcheck). + +## Usage + +Include the bundle in your deployment. diff --git a/instance-stopper/pom.xml b/instance-stopper/pom.xml new file mode 100644 index 0000000..1907c03 --- /dev/null +++ b/instance-stopper/pom.xml @@ -0,0 +1,58 @@ +<?xml version="1.0" encoding="ISO-8859-1"?> +<!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor + license agreements. See the NOTICE file distributed with this work for additional + information regarding copyright ownership. The ASF licenses this file to + you 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. --> +<project xmlns="http://maven.apache.org/POM/4.0.0"; + xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; + xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd";> + <modelVersion>4.0.0</modelVersion> + <parent> + <groupId>org.apache.sling</groupId> + <artifactId>sling-bundle-parent</artifactId> + <version>39</version> + <relativePath /> + </parent> + <artifactId>org.apache.sling.instance-stopper</artifactId> + <version>1.0-SNAPSHOT</version> + <name>Apache Sling Instance Stopper</name> + <build> + <plugins> + <plugin> + <groupId>biz.aQute.bnd</groupId> + <artifactId>bnd-maven-plugin</artifactId> + </plugin> + <plugin> + <groupId>biz.aQute.bnd</groupId> + <artifactId>bnd-baseline-maven-plugin</artifactId> + <configuration> + <failOnMissing>false</failOnMissing> + </configuration> + </plugin> + </plugins> + </build> + <dependencies> + <dependency> + <groupId>org.osgi</groupId> + <artifactId>osgi.core</artifactId> + <scope>provided</scope> + </dependency> + <dependency> + <groupId>org.osgi</groupId> + <artifactId>osgi.cmpn</artifactId> + <scope>provided</scope> + </dependency> + <dependency> + <groupId>org.apache.felix</groupId> + <artifactId>org.apache.felix.healthcheck.api</artifactId> + <version>2.0.4</version> + <scope>provided</scope> + </dependency> + </dependencies> +</project> diff --git a/instance-stopper/src/main/java/org/apache/sling/is/impl/SystemReadyInstanceStopper.java b/instance-stopper/src/main/java/org/apache/sling/is/impl/SystemReadyInstanceStopper.java new file mode 100644 index 0000000..e4adae5 --- /dev/null +++ b/instance-stopper/src/main/java/org/apache/sling/is/impl/SystemReadyInstanceStopper.java @@ -0,0 +1,46 @@ +/*- + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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.apache.sling.is.impl; + +import org.apache.felix.hc.api.condition.SystemReady; +import org.osgi.framework.BundleContext; +import org.osgi.framework.BundleException; +import org.osgi.framework.Constants; +import org.osgi.framework.launch.Framework; +import org.osgi.service.component.annotations.Component; +import org.osgi.service.component.annotations.Reference; + +/** + * Component that shuts down the system as soon as it is ready + * + */ +@Component +public class SystemReadyInstanceStopper { + + @Reference + private SystemReady systemReady; + + public void activate(BundleContext ctx) throws BundleException { + + ctx.getBundle(Constants.SYSTEM_BUNDLE_ID) + .adapt(Framework.class) + .stop(); + } + +}
![https://sling.apache.org/res/logos/sling.png"/](https://sling.apache.org/res/logos/sling.png"/){kind=link}