javascript-core

Core project for JavaScript Asset Pipeline processors

License	The Apache Software License, Version 2.0
Categories	JavaScript Languages
GroupId	com.craigburke.asset
ArtifactId	javascript-core
Last Version	0.3.0
Release Date	Nov 17, 2015
Type	jar
Description	javascript-core Core project for JavaScript Asset Pipeline processors
Project URL	https://github.com/craigburke/javascript-core-asset-pipeline
Source Code Management	https://github.com/craigburke/javascript-core-asset-pipeline

Download javascript-core

Filename	Size
javascript-core-0.3.0.pom
javascript-core-0.3.0.jar	6 KB
javascript-core-0.3.0-sources.jar	1 KB
javascript-core-0.3.0-javadoc.jar	261 bytes

How to add to project

Apache Maven

<!-- https://jarcasting.com/artifacts/com.craigburke.asset/javascript-core/ -->
<dependency>
    <groupId>com.craigburke.asset</groupId>
    <artifactId>javascript-core</artifactId>
    <version>0.3.0</version>
</dependency>

Gradle Groovy

// https://jarcasting.com/artifacts/com.craigburke.asset/javascript-core/
implementation 'com.craigburke.asset:javascript-core:0.3.0'

Gradle Kotlin

// https://jarcasting.com/artifacts/com.craigburke.asset/javascript-core/
implementation ("com.craigburke.asset:javascript-core:0.3.0")

Apache Buildr

'com.craigburke.asset:javascript-core:jar:0.3.0'

Apache Ivy

<dependency org="com.craigburke.asset" name="javascript-core" rev="0.3.0">
  <artifact name="javascript-core" type="jar" />
</dependency>

Groovy Grape

@Grapes(
@Grab(group='com.craigburke.asset', module='javascript-core', version='0.3.0')
)

Scala SBT

libraryDependencies += "com.craigburke.asset" % "javascript-core" % "0.3.0"

Leiningen

[com.craigburke.asset/javascript-core "0.3.0"]

Dependencies

provided (2)

Group / Artifact	Type	Version
com.bertramlabs.plugins : asset-pipeline-core	jar	2.0.12
org.codehaus.groovy : groovy-all	jar	2.0.8

runtime (1)

Group / Artifact	Type	Version
org.mozilla : rhino	jar	1.7.7

Project Modules

There are no modules declared in this project.

JavaScript Core Asset Pipeline

This provides the JavaScriptProcessor base class for building Asset Pipeline processors that run JavaScript with caching, thread safety, and a nice DSL.

Note	The JavaScript is currently run using the Rhino engine. Nashorn support might be added at a later date.

Getting started

dependencies {
    compile 'com.craigburke.assets:javascript-core:0.2.4'
}

Example

import com.craigburke.asset.JavaScriptProcessor
import com.craigburke.asset.JavaScriptEngine

import groovy.transform.Synchronized

class ExampleProcessor extends JavaScriptProcessor {

    ExampleProcessor(AssetCompiler precompiler) {
        super(precompiler)
    }

    static JavaScriptEngine exampleEngine

    @Syncronized
    JavaScriptEngine getEngine() { // <1>
        exampleEngine = exampleEngine ?: new JavaScriptEngine('transform.js') // <2>
        exampleEngine
    }

    String process(String input, AssetFile file) {
        javaScript {
            var1 = input // <3>
            eval 'transformFunction(var1);' // <4>
        }
    }
}

1. The getEngine method must be implemented, here we’re just returning a static JavaScriptEngine

2. The JavaScriptEngine constructor can optionally load a file that’s contained on your classpath. Here the file transform.js is loaded

3. This adds the variable var1 to your JavaScript context with the value of input.

4. The eval method allows you to execute a JavaScript function (or arbitrary JavaScript). The result is returned as a String

Versions

Version
0.3.0 Nov 17, 2015
0.2.4 Oct 1, 2015
0.2.3 Sep 29, 2015
0.2.2 Sep 29, 2015
0.2.1 Sep 4, 2015
0.2.0 Sep 4, 2015
0.1.0 Aug 27, 2015