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("bean");
                return language.createExpression(expression).evaluate(exchange, Object.class);
            }

            @Override
            public String toString() {
                return "bean(" + expression + ")";
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    protected void assertExpressionResultInstanceOf(String expressionText, Class<?> expectedType) {
        // TODO [hz]: we should refactor TestSupport.assertExpression(Expression, Exchange, Object)
        // into 2 methods, a helper that returns the value and use that helper in assertExpression
        // Then use the helper here to get the value and move this method to LanguageTestSupport
        Language language = assertResolveLanguage(getLanguageName());
        Expression expression = language.createExpression(expressionText);
        assertNotNull("Cannot assert type when no type is provided", expectedType);
        assertNotNull("No Expression could be created for text: " + expressionText + " language: " + language, expression);
        Object answer = expression.evaluate(exchange, Object.class);
        assertIsInstanceOf(Animal.class, answer);
    }
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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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    protected void assertExpressionResultInstanceOf(String expressionText, Class<?> expectedType) {
        // TODO [hz]: we should refactor TestSupport.assertExpression(Expression, Exchange, Object)
        // into 2 methods, a helper that returns the value and use that helper in assertExpression
        // Then use the helper here to get the value and move this method to LanguageTestSupport
        Language language = assertResolveLanguage(getLanguageName());
        Expression expression = language.createExpression(expressionText);
        assertNotNull("Cannot assert type when no type is provided", expectedType);
        assertNotNull("No Expression could be created for text: " + expressionText + " language: " + language, expression);
        Object answer = expression.evaluate(exchange, Object.class);
        assertIsInstanceOf(Animal.class, answer);
    }
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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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        return new ExpressionAdapter() {
            public Object evaluate(Exchange exchange) {
                // must call evaluate to return the nested language evaluate when evaluating
                // stacked expressions
                Language simple = exchange.getContext().resolveLanguage("simple");
                return simple.createExpression(expression).evaluate(exchange, Object.class);
            }

            @Override
            public String toString() {
                return "simple(" + expression + ")";
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            if (name.indexOf("${") > -1) {
                if (log.isDebugEnabled()) {
                    log.debug(Exchange.FILE_NAME + " contains a FileLanguage expression: " + name);
                }
                Language language = getEndpoint().getCamelContext().resolveLanguage("file");
                expression = language.createExpression(name);
            }
        }
        if (expression != null) {
            if (log.isDebugEnabled()) {
                log.debug("Filename evaluated as expression: " + 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 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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        if (expression.contains("$")) {
            language = getCamelContext().resolveLanguage("file");
        } else {
            language = getCamelContext().resolveLanguage("constant");
        }
        return language.createExpression(expression);
    }
}
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