org.jruby.embed.osgi

Class OSGiScriptingContainer

java.lang.Object

org.jruby.embed.ScriptingContainer

org.jruby.embed.osgi.OSGiScriptingContainer

All Implemented Interfaces:

EmbedRubyInstanceConfigAdapter

public class OSGiScriptingContainer
extends ScriptingContainer

Helpers to create a ScriptingContainer and set it up so it lives as well as possible in the OSGi world.

Currently:

1. Access to the java classes and resources provided by the osgi bundle.
2. Setup of jruby home pointing at the jruby bundle by default. Supporting unzipped jruby bundle for now.

TODO: look into using the LoadService of jruby. Look if it would be possible to reuse the base runtime and minimize the cost of new jruby runtimes.

Author:

hmalphettes

Constructor Summary

Constructors

Constructor and Description
OSGiScriptingContainer(org.osgi.framework.Bundle creator) A scripting container where the classloader can find classes in the osgi creator bundle and where the jruby home is set to point to the one in the jruby's bundle home folder.
OSGiScriptingContainer(org.osgi.framework.Bundle creator, LocalContextScope scope, LocalVariableBehavior behavior) A scripting container where the classloader can find classes in the osgi creator bundle and where the jruby home is set to point to the one in the jruby's bundle home folder.

Method Summary

Modifier and Type	Method and Description
void	addToClassPath(org.osgi.framework.Bundle bundle)
JRubyOSGiBundleClassLoader	getOSGiBundleClassLoader()
EmbedEvalUnit	parse(org.osgi.framework.Bundle bundle, java.lang.String path, int... lines) Parses a script given by a input stream and return an object which can be run().
java.lang.Object	runScriptlet(org.osgi.framework.Bundle bundle, java.lang.String path)
java.lang.Object	runScriptlet(java.lang.String bundleSymbolicName, java.lang.String path)

Methods inherited from class org.jruby.embed.ScriptingContainer

addClassLoader, addGemPath, addGemPath, addLoadPath, addLoadPath, callMethod, callMethod, callMethod, callMethod, callMethod, callMethod, callMethod, callMethod, callMethod, callSuper, callSuper, clear, finalize, get, get, getArgv, getAttribute, getAttributeMap, getClassLoader, getClassloaderDelegate, getCompatVersion, getCompileMode, getCurrentDirectory, getEnvironment, getErr, getError, getErrorWriter, getHomeDirectory, getIn, getInput, getInstance, getJitLogEvery, getJitMax, getJitMaxSize, getJitThreshold, getKCode, getLoadPaths, getLoadServiceCreator, getOut, getOutput, getProfile, getProfileOutput, getProfilingMode, getProperty, getProvider, getReader, getRecordSeparator, getRuntime, getScriptFilename, getSupportedRubyVersion, getVarMap, getWriter, isNativeEnabled, isObjectSpaceEnabled, isRunRubyInProcess, newObjectAdapter, newRuntimeAdapter, parse, parse, parse, parse, put, put, remove, remove, removeAttribute, resetErrorWriter, resetWriter, runRubyMethod, runRubyMethod, runScriptlet, runScriptlet, runScriptlet, runScriptlet, setArgv, setAttribute, setClassLoader, setClassloaderDelegate, setCompatVersion, setCompileMode, setCurrentDirectory, setEnvironment, setError, setError, setErrorWriter, setHomeDirectory, setInput, setInput, setJitLogEvery, setJitMax, setJitMaxSize, setJitThreshold, setKCode, setLoadPaths, setLoadServiceCreator, setNativeEnabled, setObjectSpaceEnabled, setOutput, setOutput, setProfile, setProfile, setProfileOutput, setProfilingMode, setReader, setRecordSeparator, setRunRubyInProcess, setScriptFilename, setWriter, terminate

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

OSGiScriptingContainer

public OSGiScriptingContainer(org.osgi.framework.Bundle creator)

A scripting container where the classloader can find classes in the osgi creator bundle and where the jruby home is set to point to the one in the jruby's bundle home folder.

scope: LocalContextScope.SINGLETHREAD; behavior: LocalVariableBehavior.TRANSIENT

Parameters:

creator -

OSGiScriptingContainer

public OSGiScriptingContainer(org.osgi.framework.Bundle creator,
                              LocalContextScope scope,
                              LocalVariableBehavior behavior)

A scripting container where the classloader can find classes in the osgi creator bundle and where the jruby home is set to point to the one in the jruby's bundle home folder.

Parameters:

creator -

scope - if null, LocalContextScope.SINGLETHREAD

behavior - if null, LocalVariableBehavior.TRANSIENT

Method Detail

runScriptlet

public java.lang.Object runScriptlet(java.lang.String bundleSymbolicName,
                                     java.lang.String path)

Parameters:

bundleSymbolicName - The bundle where the script is located. Lazily added to the loader of the OSGiScriptingContainer. (require bundle:/... is implicitly done here)

path - The entry in the bundle

Returns:

runScriptlet

public java.lang.Object runScriptlet(org.osgi.framework.Bundle bundle,
                                     java.lang.String path)

Parameters:

bundle - The bundle where the script is located. Lazily added to the loader of the OSGiScriptingContainer. (require bundle:/... is implicitly done here)

path - The entry in the bundle

Returns:

parse

public EmbedEvalUnit parse(org.osgi.framework.Bundle bundle,
                           java.lang.String path,
                           int... lines)
                    throws java.io.IOException

Parses a script given by a input stream and return an object which can be run(). This allows the script to be parsed once and evaluated many times.

Parameters:

bundle - is where the script is located

path - is the entry in the bundle.

lines - are linenumbers to display for parse errors and backtraces. This field is optional. Only the first argument is used for parsing. When no line number is specified, 0 is applied to.

Returns:

an object which can be run

Throws:

java.io.IOException

addToClassPath

public void addToClassPath(org.osgi.framework.Bundle bundle)

Parameters:

bundle - Add a bundle to the jruby classloader. Equivalent to require "bundle:/#{bundle.symbolic.name}"

getOSGiBundleClassLoader

public JRubyOSGiBundleClassLoader getOSGiBundleClassLoader()

Returns:

The ScriptingContainer's classloader casted to a JRubyOSGiBundleClassLoader. It is the parent classloader of the actual's runtime's JRubyClassLoader. It enables finding classes and resources in the OSGi environment.