Package org.apache.camel.spi

Examples of org.apache.camel.spi.Language.createExpression()

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            public Object evaluate(Exchange exchange) {
                // resolve language using context to have a clear separation of packages
                // must call evaluate to return the nested language evaluate when evaluating
                // stacked expressions
                Language language = exchange.getContext().resolveLanguage("simple");
                return language.createExpression(expression).evaluate(exchange, Object.class);
            }

            @Override
            public String toString() {
                return "simple(" + expression + ")";
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            public Object evaluate(Exchange exchange) {
                // resolve language using context to have a clear separation of packages
                // must call evaluate to return the nested language evaluate when evaluating
                // stacked expressions
                Language language = exchange.getContext().resolveLanguage("bean");
                return language.createExpression(expression).evaluate(exchange, Object.class);
            }

            @Override
            public String toString() {
                return "bean(" + expression + ")";
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            if (getExpressionType() != null) {
                setExpressionValue(getExpressionType().createExpression(camelContext));
            } else if (getExpression() != null) {
                ObjectHelper.notNull("language", getLanguage());
                Language language = camelContext.resolveLanguage(getLanguage());
                setExpressionValue(language.createExpression(getExpression()));
                configureExpression(camelContext, getExpressionValue());
            }
        }
        return getExpressionValue();
    }
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            if (getExpressionType() != null) {
                setExpressionValue(getExpressionType().createExpression(camelContext));
            } else if (getExpression() != null) {
                ObjectHelper.notNull("language", getLanguage());
                Language language = camelContext.resolveLanguage(getLanguage());
                setExpressionValue(language.createExpression(getExpression()));
                configureExpression(camelContext, getExpressionValue());
            }
        }
        return getExpressionValue();
    }
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                    if (exchange != null && !list.isEmpty()) {
                        Object value = list.get(0);
                        if (value != null) {
                            String text = exchange.get().getContext().getTypeConverter().convertTo(String.class, value);
                            Language simple = exchange.get().getContext().resolveLanguage("simple");
                            Expression exp = simple.createExpression(text);
                            Object answer = exp.evaluate(exchange.get(), Object.class);
                            return answer;
                        }
                    }
                    return null;
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     * given value on a specific exchange
     */
    protected void assertExpression(Exchange exchange, String languageName, String expressionText, Object expectedValue) {
        Language language = assertResolveLanguage(languageName);

        Expression expression = language.createExpression(expressionText);
        assertNotNull("No Expression could be created for text: " + expressionText + " language: " + language, expression);

        assertExpression(expression, exchange, expectedValue);
    }

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     * given value on a specific exchange
     */
    protected void assertExpression(Exchange exchange, String languageName, String expressionText, Object expectedValue) {
        Language language = assertResolveLanguage(languageName);

        Expression expression = language.createExpression(expressionText);
        assertNotNull("No Expression could be created for text: " + expressionText + " language: " + language, expression);

        assertExpression(expression, exchange, expectedValue);
    }

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     */
    public static Expression resolveMandatoryExpression(CamelContext camelContext, String languageName, String expressionText) {
        notNull(expressionText, "expressionText");

        Language language = resolveMandatoryLanguage(camelContext, languageName);
        Expression<Exchange> expression = language.createExpression(expressionText);
        if (expression == null) {
            throw new IllegalArgumentException("Could not create expression: " + expressionText + " with language: " + language);
        }
        return expression;
    }
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     * given value on a specific exchange
     */
    protected void assertExpression(Exchange exchange, String languageName, String expressionText, Object expectedValue) {
        Language language = assertResolveLanguage(languageName);

        Expression<Exchange> expression = language.createExpression(expressionText);
        assertNotNull("No Expression could be created for text: " + expressionText + " language: " + language, expression);

        assertExpression(expression, exchange, expectedValue);
    }

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        Language language = camelContext.resolveLanguage(languageName);
        if (language == null) {
            throw new IllegalArgumentException("Cannot find the language: " + languageName + " on the classpath");
        }
        String expression = getExpressionFromAnnotation(annotation);
        return language.createExpression(expression);
    }

    protected String getExpressionFromAnnotation(Annotation annotation) {
        // lets try the 'value()' method
        try {
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