Package org.apache.camel.spi

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

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            @Override
            public boolean matches(Exchange exchange) {
                Language lan = exchange.getContext().resolveLanguage(language);
                if (lan != null) {
                    return lan.createPredicate(expression).matches(exchange);
                } else {
                    throw new NoSuchLanguageException(language);
                }
            }
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        Predicate answer = getRetryWhile();

        if (getRetryWhileRef() != null) {
            // its a bean expression
            Language bean = context.resolveLanguage("bean");
            answer = bean.createPredicate(getRetryWhileRef());
        }

        return answer;
    }
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    public Predicate<Exchange> createPredicate(RouteContext route) {
        if (predicate == null) {
            CamelContext camelContext = route.getCamelContext();
            Language language = camelContext.resolveLanguage(getLanguage());
            predicate = language.createPredicate(getExpression());
        }
        return predicate;
    }

    public Expression createExpression(RouteContext routeContext) {
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    public void testPredicate() throws Exception {
        Exchange exchange = new DefaultExchange(context);
        exchange.getIn().setBody(new File("src/test/resources/books.json"));

        Language lan = context.resolveLanguage("jsonpath");
        Predicate pre = lan.createPredicate("$.store.book[?(@.price < 10)]");
        boolean cheap = pre.matches(exchange);
        assertTrue("Should have cheap books", cheap);

        pre = lan.createPredicate("$.store.book[?(@.price > 30)]");
        boolean expensive = pre.matches(exchange);
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        Language lan = context.resolveLanguage("jsonpath");
        Predicate pre = lan.createPredicate("$.store.book[?(@.price < 10)]");
        boolean cheap = pre.matches(exchange);
        assertTrue("Should have cheap books", cheap);

        pre = lan.createPredicate("$.store.book[?(@.price > 30)]");
        boolean expensive = pre.matches(exchange);
        assertFalse("Should not have expensive books", expensive);
    }
}
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            @Override
            public boolean matches(Exchange exchange) {
                Language lan = exchange.getContext().resolveLanguage(language);
                if (lan != null) {
                    return lan.createPredicate(expression).matches(exchange);
                } else {
                    throw new NoSuchLanguageException(language);
                }
            }
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     * to the expected value on the message exchange
     */
    protected void assertPredicate(String languageName, String expressionText, Exchange exchange, boolean expected) {
        Language language = assertResolveLanguage(languageName);

        Predicate<Exchange> predicate = language.createPredicate(expressionText);
        assertNotNull("No Predicate could be created for text: " + expressionText + " language: " + language, predicate);

        assertPredicate(predicate, exchange, expected);
    }

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        }
    }

    public void testPredicates() throws Exception {
        Language language = assertResolveLanguage(getLanguageName());
        assertPredicate(language.createPredicate("SELECT * FROM org.apache.camel.builder.sql.Person where city = 'London'"), exchange, true);
        assertPredicate(language.createPredicate("SELECT * FROM org.apache.camel.builder.sql.Person where city = 'Manchester'"), exchange, false);
    }

    public void testPredicateWithHeaderVariable() throws Exception {
        Language language = assertResolveLanguage(getLanguageName());
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    }

    public void testPredicates() throws Exception {
        Language language = assertResolveLanguage(getLanguageName());
        assertPredicate(language.createPredicate("SELECT * FROM org.apache.camel.builder.sql.Person where city = 'London'"), exchange, true);
        assertPredicate(language.createPredicate("SELECT * FROM org.apache.camel.builder.sql.Person where city = 'Manchester'"), exchange, false);
    }

    public void testPredicateWithHeaderVariable() throws Exception {
        Language language = assertResolveLanguage(getLanguageName());
        assertPredicate(language.createPredicate("SELECT * FROM org.apache.camel.builder.sql.Person where name = :fooHeader"), exchange, true);
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        assertPredicate(language.createPredicate("SELECT * FROM org.apache.camel.builder.sql.Person where city = 'Manchester'"), exchange, false);
    }

    public void testPredicateWithHeaderVariable() throws Exception {
        Language language = assertResolveLanguage(getLanguageName());
        assertPredicate(language.createPredicate("SELECT * FROM org.apache.camel.builder.sql.Person where name = :fooHeader"), exchange, true);
    }

    protected String getLanguageName() {
        return "sql";
    }
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