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o first version of Sonatype's decoupled JSR330 support for Hudson
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Jason van Zyl committed Feb 10, 2011
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5 changes: 5 additions & 0 deletions .gitignore
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target/
.project
.classpath
.settings/
bin/
143 changes: 143 additions & 0 deletions README.md
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# Description

Smoothie: Hudson JSR330 integration for Hudson

Smoothie (_a blend of guice for hudson_) was designed to allow plugin components written with **JSR-330** annotations
to be used as Hudson extension points while leaving existing `@Extension` mechanism AS-IS.

Aside from installing the custom `PluginStrategy` (and its dependencies) into the `hudson.war`
there are no changes to `hudson-core` required.

## Building

### Requirements

* [Maven](http://maven.apache.org) 3.0+
* [Java](http://java.sun.com/) 6+ (1.6.0_19+)

Check-out and build:

git clone git@github.com:sonatype/matrix-smoothie.git
cd matrix-smoothie
mvn install

## Installing

An example of a modified `hudson.war` is generated in the `matrix-smoothie-webapp` module.

### Install dependencies

Several jars need to be added to the `hudson.war`:

Copy matrix-smoothie/target/matrix-smoothie-*.jar into hudson.war/WEB-INF/lib
Copy matrix-smoothie-webapp/target/dependency/* into into hudson.war/WEB-INF/lib

### Configure Hudson to use Smoothie

Configure system properties:

hudson.PluginStrategy=com.sonatype.matrix.smoothie.internal.plugin.DelegatingPluginStrategy

## Usage

### Use JSR-330 annotations to mark components

A simple component:

@Named
@Singleton
public class MyPageDecorator extends PageDecorator {
// ...
}

Descriptors (and some other extensions) require additional `@Typed` meta-data:

public class MyScm extends SCM {
// ...

@Named
@Singleton
@Typed(hudson.model.Descriptor.class)
public static final class DescriptorImpl extends SCMDescriptor<MyScm> {
// ...
}
}

## Advanced Usage

### Configure Aspect for Plugin development

To enable the injection of `hudson.model.Describable` instances,
configure your HPI plugin to weave the `matrix-smoothie` aspect:

<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>aspectj-maven-plugin</artifactId>
<version>1.3</version>
<dependencies>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjtools</artifactId>
<version>1.6.10</version>
</dependency>
</dependencies>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>test-compile</goal>
</goals>
<configuration>
<Xlint>ignore</Xlint>
<XaddSerialVersionUID>true</XaddSerialVersionUID>
<source>1.6</source>
<target>1.6</target>
<aspectLibraries>
<aspectLibrary>
<groupId>org.sonatype.matrix</groupId>
<artifactId>matrix-smoothie</artifactId>
<version>1.1-SNAPSHOT</version>
</aspectLibrary>
</aspectLibraries>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>

This will enable **setter** injection on Describable instances:

public class MyScm extends SCM {
// ...
private transient MyScmBacking backing;
@Inject
public void setMyScmBacking(MyScmBacking backing) {
this.backing = backing;
}
@Named
@Singleton
@Typed(hudson.model.Descriptor.class)
public static final class DescriptorImpl extends SCMDescriptor<MyScm> {
// ...
}
}

Remember to make fields holding onto injected resources in Describable instances **transient**.
When the object is deserialized Smoothie will re-inject the instance.

Constructor injection is **NOT** available for Describable instances.

## Trying it out

java -DHUDSON_HOME=target/hudson \
-Dhudson.PluginStrategy=com.sonatype.matrix.smoothie.internal.plugin.DelegatingPluginStrategy \
-jar matrix-smoothie-webapp/target/smoothie-hudson.war

This should add a new smoothie-enabled management link and a new smoothie builder, both to simply say hello
by delegation to an injected component.
21 changes: 21 additions & 0 deletions header.txt
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The MIT License

Copyright (c) ${year} Sonatype, Inc. All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
82 changes: 82 additions & 0 deletions matrix-smoothie-example-plugin/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
<!--
The MIT License
Copyright (c) 2010 Sonatype, Inc. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-->

<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.sonatype.matrix</groupId>
<artifactId>matrix-smoothie-parent</artifactId>
<version>1.1-SNAPSHOT</version>
</parent>

<groupId>org.sonatype.matrix</groupId>
<artifactId>matrix-smoothie-example-plugin</artifactId>
<name>Matrix Smoothie Example Plugin</name>
<packaging>hpi</packaging>

<dependencies>
<dependency>
<groupId>org.sonatype.matrix</groupId>
<artifactId>matrix-smoothie</artifactId>
<version>1.1-SNAPSHOT</version>
<scope>provided</scope>
</dependency>

<dependency>
<groupId>org.jvnet.hudson.main</groupId>
<artifactId>hudson-core</artifactId>
<scope>provided</scope>
</dependency>

<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>

<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>aspectj-maven-plugin</artifactId>
<configuration>
<aspectLibraries>
<aspectLibrary>
<groupId>org.sonatype.matrix</groupId>
<artifactId>matrix-smoothie</artifactId>
</aspectLibrary>
</aspectLibraries>
</configuration>
</plugin>
</plugins>
</build>

</project>
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/**
* The MIT License
*
* Copyright (c) 2010 Sonatype, Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/

package com.sonatype.matrix.plugins.exampleplugin;

import hudson.Launcher;
import hudson.model.AbstractBuild;
import hudson.model.AbstractProject;
import hudson.model.BuildListener;
import hudson.model.Descriptor;
import hudson.tasks.BuildStepDescriptor;
import hudson.tasks.Builder;
import org.kohsuke.stapler.DataBoundConstructor;

import javax.enterprise.inject.Typed;
import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;
import java.io.IOException;

/**
* Example Smoothie {@link Builder}.
*
* @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
* @since 1.1
*/
public class ExampleBuilder
extends Builder
{
// Make sure injected component references are transient, due to use of XStream for configuration persistence
private transient Speaker speaker;

@DataBoundConstructor
public ExampleBuilder() {
// blah
}

// This requires the matrix-smoothie aspect to be weaved for injection.

@Inject
public void setSpeaker(final Speaker speaker) {
assert speaker != null;
this.speaker = speaker;
}

@Override
public boolean perform(final AbstractBuild<?, ?> build, final Launcher launcher, final BuildListener listener) throws InterruptedException, IOException {
listener.getLogger().println(speaker.speak());
return true;
}

@Named
@Singleton
@Typed(Descriptor.class)
public static class DescriptorImpl
extends BuildStepDescriptor<Builder>
{
@Override
public boolean isApplicable(final Class<? extends AbstractProject> type) {
return true;
}

@Override
public String getDisplayName() {
return "Say hello";
}
}
}

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