You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@sling.apache.org by ro...@apache.org on 2020/09/04 13:29:19 UTC
[sling-whiteboard] 03/04: Add an instance-stopper module
This is an automated email from the ASF dual-hosted git repository.
rombert pushed a commit to branch feature/new-modules
in repository https://gitbox.apache.org/repos/asf/sling-whiteboard.git
commit 0f8a7cae79e91e456638f3cd5ad5bbcdeb49acdc
Author: Robert Munteanu <ro...@apache.org>
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();
+ }
+
+}