Examples of org.mozilla.javascript.ImporterTopLevel

org.mozilla.javascript.ImporterTopLevel
Class ImporterTopLevel This class defines a ScriptableObject that can be instantiated as a top-level ("global") object to provide functionality similar to Java's "import" statement.
This class can be used to create a top-level scope using the following code:
```
 Scriptable scope = new ImporterTopLevel(cx); 
```
Then JavaScript code will have access to the following methods:
- importClass - will "import" a class by making its unqualified name available as a property of the top-level scope
- importPackage - will "import" all the classes of the package by searching for unqualified names as classes qualified by the given package.
The following code from the shell illustrates this use:
```
 js> importClass(java.io.File) js> f=new File('help.txt') help.txt js> importPackage(java.util) js> v = new Vector() []
@author Norris Boyd
```

                /* The ImporterTopLevel ensures that importClass and
                   importPackage statements work in Javascript scripts
                   Make the XScriptContext available as a global variable
                   to the script
                 */
                ImporterTopLevel scope = new ImporterTopLevel(ctxt);


                Scriptable jsCtxt = Context.toObject(
                   ScriptContext.createContext(
                       m_xModel, m_xContext,
                       m_xMultiComponentFactory), scope);
                scope.put("XSCRIPTCONTEXT", scope, jsCtxt);


                Scriptable jsArgs = Context.toObject(params, scope);
                scope.put("ARGUMENTS", scope, jsArgs);


                result = ctxt.evaluateString(scope,
                        source, "<stdin>", 1, null);
                result = ctxt.toString(result);
        return result;

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    }
    private Scriptable getScope(XScriptContext xsctxt ) 
    {
        Context ctxt = Context.enter();
        ImporterTopLevel scope = new ImporterTopLevel(ctxt);


        Scriptable jsCtxt = Context.toObject(xsctxt, scope);
        scope.put("XSCRIPTCONTEXT", scope, jsCtxt);


        Scriptable jsArgs = Context.toObject(
           new Object[0], scope);
        scope.put("ARGUMENTS", scope, jsArgs);


        Context.exit();
        return scope;
    }

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                });
            Context.addContextListener(sdb);
            sdb.setScopeProvider(new ScopeProvider() {
                    public Scriptable getScope() {
                        Context ctxt = Context.enter();
                        ImporterTopLevel scope = new ImporterTopLevel(ctxt);
                        Scriptable jsArgs = Context.toObject(xsctxt, scope);
                        scope.put("XSCRIPTCONTEXT", scope, jsArgs);
                        Context.exit();
                        return scope;
                    }
                });
            return sdb;

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    }


    public void initialize() throws Exception {
        Context context = Context.enter();
        try {
            global = new ImporterTopLevel(context);
            global.put("page", global, Context.toObject(this, global));
            global.put("logger", global, Context.toObject(getLogger(), global));
            global.put("xspAttr", global, Context.toObject(new AttributesImpl(), global));


            context.setOptimizationLevel(-1);

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            reader = pReader;
            store = pStore;


            final Context context = Context.enter();
            scope = new ImporterTopLevel(context);
            Context.exit();
        }

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    }


    public void initialize() throws Exception {
        Context context = Context.enter();
        try {
            global = new ImporterTopLevel(context);
            global.put("page", global, Context.toObject(this, global));
            global.put("logger", global, Context.toObject(getLogger(), global));
            global.put("xspAttr", global, Context.toObject(new AttributesImpl(), global));


            context.setOptimizationLevel(-1);

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                /* The ImporterTopLevel ensures that importClass and
                   importPackage statements work in Javascript scripts
                   Make the XScriptContext available as a global variable
                   to the script
                 */
                ImporterTopLevel scope = new ImporterTopLevel(ctxt);


                Scriptable jsCtxt = Context.toObject(
                   ScriptContext.createContext(
                       m_xModel, m_xInvocContext, m_xContext,
                       m_xMultiComponentFactory), scope);
                scope.put("XSCRIPTCONTEXT", scope, jsCtxt);


                Scriptable jsArgs = Context.toObject(params, scope);
                scope.put("ARGUMENTS", scope, jsArgs);


                result = ctxt.evaluateString(scope,
                        source, "<stdin>", 1, null);
                result = ctxt.toString(result);
        return result;

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    }
    private Scriptable getScope(XScriptContext xsctxt ) 
    {
        Context ctxt = Context.enter();
        ImporterTopLevel scope = new ImporterTopLevel(ctxt);


        Scriptable jsCtxt = Context.toObject(xsctxt, scope);
        scope.put("XSCRIPTCONTEXT", scope, jsCtxt);


        Scriptable jsArgs = Context.toObject(
           new Object[0], scope);
        scope.put("ARGUMENTS", scope, jsArgs);


        Context.exit();
        return scope;
    }

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    }


    public void initialize() throws Exception {
        Context context = Context.enter();
        try {
            global = new ImporterTopLevel(context);
            global.put("page", global, Context.toObject(this, global));
            global.put("logger", global, Context.toObject(getLogger(), global));
            global.put("xspAttr", global, Context.toObject(new AttributesImpl(), global));


            context.setOptimizationLevel(-1);

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  }
  
  private Scriptable createGlobalScope() {
    try {
      final Context cx = Context.enter();
      final ScriptableObject importer = new ImporterTopLevel(cx, true);
      return cx.initStandardObjects(importer, true);
    } finally {
      Context.exit();
    }
  }

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