Examples of io.apigee.trireme.core.internal.ModuleRegistry

io.apigee.trireme.core.internal.ModuleRegistry
This tracks all the built-in modules that are available to us. There are three types of modules:
1. Native modules are built in Java. They are loaded using the ServiceLoader, which means that these modules must implement NodeModule and must be listed in META-INF/services/c.a.n.r.NodeModule.
2. Compiled native modules are built in JavaScript. A Java stub that uses ServiceLoader and implements NodeScriptModule is used to pull in the JavaScript source, which is then compiled and loaded.
3. Internal native modules are also built in Java and are also loaded using the ServiceLoader. However they are loaded using process.binding, not "require" and are intended for internal use only. This way they aren't in the namespace for ordinary users. They implement InternalNodeModule.
4. Internal script modules are written in JavaScript -- their source lives in src/main/javascript and is pre-compiled using Rhino (we have a plugin for this). They are then loaded directly by this class. These modules may only reside within this Maven module.
The constructor for this class manually defines all compiled script modules. All the rest are loaded using the ServiceLoader, which means that new modules can add new scripts.

This registry is loaded based on a NodeImplementation, which means that there can be many if there are a lot of versions of Node available.

    public Scriptable registerExports(Context cx, Scriptable global, NodeRuntime runtime)
        throws InvocationTargetException, IllegalAccessException, InstantiationException
    {
        Scriptable natives = cx.newObject(global);


        ModuleRegistry registry = ((ScriptRunner)runtime).getRegistry();
        for (String name : registry.getCompiledModuleNames()) {
            Script script = registry.getCompiledModule(name);
            String fileName = '/' + script.getClass().getName().replace(".", "/") + ".js";


            InputStream in = script.getClass().getResourceAsStream(fileName);
            if (in == null) {
                continue;

View Full Code Here

        ServiceLoader<NodeImplementation> impls = ServiceLoader.load(NodeImplementation.class);
        for (NodeImplementation impl : impls) {
            if (log.isDebugEnabled()) {
                log.debug("Discovered Node version {}", impl.getVersion());
            }
            versions.add(new NodeVersion(impl.getVersion(), new ModuleRegistry(impl)));
        }
    }

View Full Code Here

    /**
     * Return the default implementation version.
     */
    public String getDefaultNodeVersion()
    {
        ModuleRegistry reg = versions.match(DEFAULT_NODE_VERSION);
        if (reg == null) {
            return null;
        }
        return reg.getImplementation().getVersion();
    }

View Full Code Here

     * </p>
     */
    public ScriptFuture execute()
        throws NodeException
    {
        ModuleRegistry registry = getRegistry();


        if ((scriptFile == null) && (script == null)) {
            runner = new ScriptRunner(this, env, sandbox, args, forceRepl);
        } else if (scriptFile == null) {
            runner = new ScriptRunner(this, env, sandbox, scriptName, script, args);

View Full Code Here

        throws NodeException
    {
        if (scriptFile == null) {
            throw new NodeException("Modules must be specified as a file name and not as a string");
        }
        ModuleRegistry registry = getRegistry();


        runner = new ScriptRunner(this, env, sandbox, scriptName,
                                  makeModuleScript(), args);
        runner.setParentProcess((ProcessWrap.ProcessImpl)parentProcess);
        runner.setRegistry(registry);

View Full Code Here

    }


    private ModuleRegistry getRegistry()
        throws NodeException
    {
        ModuleRegistry registry = env.getRegistry(nodeVersion);
        if (registry == null) {
            throw new NodeException("No available Node.js implementation matches version " + nodeVersion);
        }
        return registry;
    }

View Full Code Here

TOP

Related Classes of io.apigee.trireme.core.internal.ModuleRegistry

io.apigee.trireme.core.modules.Natives

io.apigee.trireme.core.NodeEnvironment

io.apigee.trireme.core.NodeModule

io.apigee.trireme.core.NodeScript

org.mozilla.javascript.Script

java.io.InputStream

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.