Package org.mule.mvel2.integration

Examples of org.mule.mvel2.integration.VariableResolver

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    public <T> T evaluate(String expression, MuleMessage message, Map<String, Object> vars)
    {
        MVELExpressionLanguageContext context = createExpressionLanguageContext();
        if (vars != null)
        {
            context.setNextFactory(new CachedMapVariableResolverFactory(vars,
                new DelegateVariableResolverFactory(staticContext, new MessageVariableResolverFactory(
                    parserConfiguration, muleContext, message, new DelegateVariableResolverFactory(
                        globalContext, createVariableVariableResolverFactory(message))))));
        }
        else
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    {
        parserConfig.addImport(String.class);

        MuleBaseVariableResolverFactory resoverFactory = new MVELExpressionLanguageContext(parserConfig,
            muleContext);
        resoverFactory.setNextFactory(new MapVariableResolverFactory(Collections.singletonMap("foo", "val")));

        assertNotNull(resoverFactory.getVariableResolver("foo"));
        assertEquals("val", resoverFactory.getVariableResolver("foo").getValue());
        assertNull(resoverFactory.getVariableResolver("bar"));
    }
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    @Test
    public void testGetVariableResolver()
    {
        MuleBaseVariableResolverFactory resoverFactory = new MVELExpressionLanguageContext(parserConfig,
            muleContext);
        resoverFactory.addResolver("foo", new SimpleValueResolver("val"));

        assertNotNull(resoverFactory.getVariableResolver("foo"));
        assertEquals("val", resoverFactory.getVariableResolver("foo").getValue());
        assertNull(resoverFactory.getVariableResolver("bar"));
    }
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        this.localVariables.put(identifier,
                value);
    }
    public VariableResolver createVariable(String name, Object value) {
        VariableResolver vr;
        try {
            vr = getVariableResolver(name);
        }
        catch (UnresolveablePropertyException e) {
            vr = null;
        }
        if (vr != null && vr.getType() != null) {
            throw new CompileException("variable already defined within scope: " + vr.getType() + " " + name);
        }
        else {
            return addResolver(name, new LocalVariableResolver(this, name), value);
        }
    }
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    public VariableResolver createVariable(String name,
                                           Object value,
                                           Class type) {
        VariableResolver vr;
        try {
            vr = getVariableResolver(name);
        }
        catch (UnresolveablePropertyException e) {
            vr = null;
        }
        if (vr != null && vr.getType() != null) {
            throw new CompileException("variable already defined within scope: " + vr.getType() + " " + name);
        }
        else {
            return addResolver(name, new LocalVariableResolver(this, name, type), value);
        }
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                                 value );
    }

    public VariableResolver createVariable(String name,
                                           Object value) {
        VariableResolver vr = getVariableResolver( name );
        if ( vr == null ) {
            addResolver( name,
                         vr = new LocalVariableResolver( this,
                                                         name ) );
        }

        vr.setValue( value );
        return vr;
    }
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    }

    public VariableResolver createVariable(String name,
                                           Object value,
                                           Class type) {
        VariableResolver vr = getVariableResolver( name );
        if ( vr == null ) {
            addResolver( name,
                         vr = new LocalVariableResolver( this,
                                                         name,
                                                         type ) );
        }

        vr.setValue( value );
        return vr;
    }
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        if ( this.shadowValues != null && this.shadowVariables.contains( name ) ) {
            return new ShadowVariableResolver( super.getVariableResolver( name ),
                                               this.shadowValues,
                                               name );
        }
        VariableResolver vr = super.getVariableResolver( name );

        Object val = vr.getValue();

        return vr;
    }
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        } else if ( "this".equals( name ) ) {
            return item;
        }

        // FIXME hack as MVEL seems to be ignoring indexed variables
        VariableResolver vr = variableFactory.getNextFactory().getVariableResolver( name );
        if ( vr != null ) {
            return vr.getValue();
        }
               
        Declaration declr = item.getTerminalNode().getSubRule().getOuterDeclarations().get( name );
        if ( declr != null ) {
            return declr.getValue( null, item.getTuple().get( declr ).getObject() );
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        } else if ( "this".equals( name ) ) {
            return item;
        }

        // FIXME hack as MVEL seems to be ignoring indexed variables
        VariableResolver vr = variableFactory.getNextFactory().getVariableResolver( name );
        if ( vr != null ) {
            return vr.getValue();
        }
               
        Declaration declr = item.getRuleTerminalNode().getSubRule().getOuterDeclarations().get( name );
        if ( declr != null ) {
            return declr.getValue( null, item.getTuple().get( declr ).getObject() );
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