Examples of freemarker.template.TemplateModelException

freemarker.template.TemplateModelException
Template model implementation classes should throw this exception if requested data cannot be retrieved. @version $Id: TemplateModelException.java,v 1.14 2003/04/22 21:03:22 revusky Exp $

    {
        try {
            return new JDOMXPathEx(xpathString);
        }
        catch(Exception e) {
            throw new TemplateModelException(e);
        }
    }

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        {
            return object.__len__();
        }
        catch(PyException e)
        {
            throw new TemplateModelException(e);
        }
    }

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                return (TemplateCollectionModel)wrapper.wrap(method.__call__());
            }
        }
        catch(PyException e)
        {
            throw new TemplateModelException(e);
        }
        throw new TemplateModelException("'?keys' is not supported as there is no 'keys' nor 'keySet' attribute on an instance of " + object.__class__.__name__);
    }

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                return (TemplateCollectionModel)wrapper.wrap(method.__call__());
            }
        }
        catch(PyException e)
        {
            throw new TemplateModelException(e);
        }
        throw new TemplateModelException("'?values' is not supported as there is no 'values' attribute on an instance of " + object.__class__.__name__);
    }

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            context.getContextSupport().setNamespaceContext(namespaces);
            try {
                return selectNodesForContext(context);
            }
            catch(Exception e) {
                throw new TemplateModelException(e);
            }
        }

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        }
        if(appModel instanceof ServletContextHashModel) {
            this.servlet = ((ServletContextHashModel)appModel).getServlet();
        }
        else {
            throw new  TemplateModelException("Could not find an instance of " + 
                    ServletContextHashModel.class.getName() + 
                    " in the data model under either the name " + 
                    FreemarkerServlet.KEY_APPLICATION_PRIVATE + " or " + 
                    FreemarkerServlet.KEY_APPLICATION);
        }
        
        TemplateModel requestModel = 
            environment.getGlobalVariable(FreemarkerServlet.KEY_REQUEST_PRIVATE);
        if(!(requestModel instanceof HttpRequestHashModel)) {
            requestModel = environment.getGlobalVariable(
                    FreemarkerServlet.KEY_REQUEST);
        }
        if(requestModel instanceof HttpRequestHashModel) {
            HttpRequestHashModel reqHash = (HttpRequestHashModel)requestModel;
            this.request = reqHash.getRequest();
            this.session = request.getSession(false);
            this.response = reqHash.getResponse();
            this.wrapper = reqHash.getObjectWrapper();
        }
        else  {
            throw new  TemplateModelException("Could not find an instance of " + 
                    HttpRequestHashModel.class.getName() + 
                    " in the data model under either the name " + 
                    FreemarkerServlet.KEY_REQUEST_PRIVATE + " or " + 
                    FreemarkerServlet.KEY_REQUEST);
        }

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    {
        try {
            return new Dom4jXPathEx(xpathString);
        }
        catch(Exception e) {
            throw new TemplateModelException(e);
        }
    }

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        }
        XPathSupport xps = getXPathSupport();
        if (xps != null) {
            return xps.executeQuery(node, key);
        } else {
            throw new TemplateModelException(
                    "Can't try to resolve the XML query key, because no XPath support is available. "
                    + "It's either malformed or an XPath expression: " + key);
        }
    }

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            case Node.ENTITY_REFERENCE_NODE : return "entity_reference";
            case Node.NOTATION_NODE : return "notation";
            case Node.PROCESSING_INSTRUCTION_NODE : return "pi";
            case Node.TEXT_NODE : return "text";
        }
        throw new TemplateModelException("Unknown node type: " + nodeType + ". This should be impossible!");
    }

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        throw new TemplateModelException("Unknown node type: " + nodeType + ". This should be impossible!");
    }
    
    public TemplateModel exec(List args) throws TemplateModelException {
        if (args.size() != 1) {
            throw new TemplateModelException("Expecting exactly one arguments");
        }
        String query = (String) args.get(0);
        // Now, we try to behave as if this is an XPath expression
        XPathSupport xps = getXPathSupport();
        if (xps == null) {
            throw new TemplateModelException("No XPath support available");
        }
        return xps.executeQuery(node, query);
    }

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