Examples of org.apache.velocity.app.VelocityEngine.evaluate()

Class org.apache.velocity.app.VelocityEngine

Examples of org.apache.velocity.app.VelocityEngine.evaluate()

org.apache.velocity.app.VelocityEngine.evaluate()
renders the input string using the context into the output writer. To be used when a template is dynamically constructed, or want to use Velocity as a token replacer. @param context context to use in rendering input string @param out Writer in which to render the output @param logTag string to be used as the template name for log messages in case of error @param instring input string containing the VTL to be rendered @return true if successful, false otherwise. If false, seeVelocity runtime log

        
        // no arguments
        StringWriter writer = new StringWriter();
        try 
        {
            ve.evaluate(context, writer, "test",
                              "#evaluate()");
            fail("Expected exception");
        }
        catch (ParseErrorException e)
        {

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        // too many arguments
        writer = new StringWriter();
        try 
        {
            ve.evaluate(context, writer, "test",
                              "#evaluate('aaa' 'bbb')");
            fail("Expected exception");
        }
        catch (ParseErrorException e)
        {

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        // argument not a string or reference
        writer = new StringWriter();
        try 
        {
            ve.evaluate(context, writer, "test",
                              "#evaluate(10)");
            fail("Expected exception");
        }
        catch (ParseErrorException e)
        {

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        writer = new StringWriter();
        try 
        {
            String eval = "this is a multiline\n\n\n\n\n test #foreach() with an error";
            context.put("eval",eval);
            ve.evaluate(context, writer, "test",
                              "first line\n second line: #evaluate($eval)");
            fail("Expected exception");
        }
        catch (ParseErrorException e)
        {

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        Context velocityContext = new VelocityContext(variableMap);


        // let velocity parse and generate the result in buffer
        VelocityEngine engine = getVelocityEngine();
        log.debug("Velocity is evaluating using velocity context: {}", variableMap);
        engine.evaluate(velocityContext, buffer, logTag, reader);


        // now lets output the results to the exchange
        Message out = exchange.getOut();
        out.setBody(buffer.toString());

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    context.put("regexpTokens", regexpTokens);
    context.put("StringUtil", StringUtil.class);
    context.put("maxTokenLength", maxLen[0]);


    StringWriter out = new StringWriter();
    ve.evaluate(context, out, "lexer.flex.template", new InputStreamReader(getClass().getResourceAsStream("/templates/lexer.flex.template")));
    return StringUtil.convertLineSeparators(out.toString());
  }


  @NotNull
  public static String token2JFlex(@NotNull String tokenText) {

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    InputStream in = this.getClass().getClassLoader().getResourceAsStream(templatePath);
    
    VelocityEngine templateEngine = new VelocityEngine();
    templateEngine.init();
    
    templateEngine.evaluate(context, writer, "rdf-reconcile-extension", new InputStreamReader(in));
    writer.close();
    String html = writer.toString();
    return html;
  }

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    InputStream in = this.getClass().getClassLoader().getResourceAsStream(templatePath);
    
    VelocityEngine templateEngine = new VelocityEngine();
    templateEngine.init();
    
    templateEngine.evaluate(context, writer, "rdf-reconcile-extension", new InputStreamReader(in));
    writer.close();
    String html = writer.toString();
    return html;
  }

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    InputStream in = this.getClass().getClassLoader().getResourceAsStream(templatePath);
    
    VelocityEngine templateEngine = new VelocityEngine();
    templateEngine.init();
    
    templateEngine.evaluate(context, writer, "rdf-reconcile-extension", new InputStreamReader(in));
    writer.close();
    String html = writer.toString();
    return html;
  }

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        // let velocity parse and generate the result in buffer
        VelocityEngine engine = getVelocityEngine();
        if (log.isDebugEnabled()) {
            log.debug("Velocity is evaluating using velocity context: " + variableMap);
        }
        engine.evaluate(velocityContext, buffer, logTag, reader);


        // now lets output the results to the exchange
        Message out = exchange.getOut();
        out.setBody(buffer.toString());
        out.setHeaders(exchange.getIn().getHeaders());

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