Examples with Predicate org.apache.camel.Predicate used on opensource projects

Example 31 with Predicate

use of org.apache.camel.Predicate in project camel by apache.

the class AssertionClause method applyAssertionOn.

/**
     * Performs any assertions on the given exchange
     */
protected void applyAssertionOn(MockEndpoint endpoint, int index, Exchange exchange) {
    for (Predicate predicate : predicates) {
        currentIndex = index;
        PredicateAssertHelper.assertMatches(predicate, "Assertion error at index " + index + " on mock " + endpoint.getEndpointUri() + " with predicate: ", exchange);
    }
}

Example 32 with Predicate

use of org.apache.camel.Predicate in project camel by apache.

the class RefLanguage method createExpression.

public Expression createExpression(final String expression) {
    final Expression exp = RefLanguage.ref(expression);
    return new ExpressionAdapter() {

        public Object evaluate(Exchange exchange) {
            Expression target = null;
            Object lookup = exp.evaluate(exchange, Object.class);
            // must favor expression over predicate
            if (lookup != null && lookup instanceof Expression) {
                target = (Expression) lookup;
            } else if (lookup != null && lookup instanceof Predicate) {
                target = PredicateToExpressionAdapter.toExpression((Predicate) lookup);
            }
            if (target != null) {
                return target.evaluate(exchange, Object.class);
            } else {
                throw new IllegalArgumentException("Cannot find expression or predicate in registry with ref: " + expression);
            }
        }

        public String toString() {
            return exp.toString();
        }
    };
}

Example 33 with Predicate

use of org.apache.camel.Predicate in project camel by apache.

the class BinaryExpression method createInExpression.

private Expression createInExpression(final Expression leftExp, final Expression rightExp) {
    return new Expression() {

        @Override
        public <T> T evaluate(Exchange exchange, Class<T> type) {
            // okay the in operator is a bit more complex as we need to build a list of values
            // from the right hand side expression.
            // each element on the right hand side must be separated by comma (default for create iterator)
            Iterator<Object> it = ObjectHelper.createIterator(rightExp.evaluate(exchange, Object.class));
            List<Object> values = new ArrayList<Object>();
            while (it.hasNext()) {
                values.add(it.next());
            }
            // then reuse value builder to create the in predicate with the list of values
            ValueBuilder vb = new ValueBuilder(leftExp);
            Predicate predicate = vb.in(values.toArray());
            if (operator == BinaryOperatorType.NOT_IN) {
                predicate = PredicateBuilder.not(predicate);
            }
            boolean answer = predicate.matches(exchange);
            return exchange.getContext().getTypeConverter().convertTo(type, answer);
        }

        @Override
        public String toString() {
            return left + " " + token.getText() + " " + right;
        }
    };
}

Example 34 with Predicate

use of org.apache.camel.Predicate in project camel by apache.

the class BinaryExpression method createRegexExpression.

private Expression createRegexExpression(final Expression leftExp, final Expression rightExp) {
    return new Expression() {

        @Override
        public <T> T evaluate(Exchange exchange, Class<T> type) {
            // reg ex should use String pattern, so we evaluate the right hand side as a String
            Predicate predicate = PredicateBuilder.regex(leftExp, rightExp.evaluate(exchange, String.class));
            if (operator == BinaryOperatorType.NOT_REGEX) {
                predicate = PredicateBuilder.not(predicate);
            }
            boolean answer = predicate.matches(exchange);
            return exchange.getContext().getTypeConverter().convertTo(type, answer);
        }

        @Override
        public String toString() {
            return left + " " + token.getText() + " " + right;
        }
    };
}

Example 35 with Predicate

use of org.apache.camel.Predicate in project camel by apache.

the class LogicalExpression method createOrExpression.

private Expression createOrExpression(final Expression leftExp, final Expression rightExp) {
    return new Expression() {

        @Override
        public <T> T evaluate(Exchange exchange, Class<T> type) {
            Predicate predicate = ExpressionToPredicateAdapter.toPredicate(leftExp);
            predicate = PredicateBuilder.or(predicate, ExpressionToPredicateAdapter.toPredicate(rightExp));
            boolean answer = predicate.matches(exchange);
            return exchange.getContext().getTypeConverter().convertTo(type, answer);
        }

        @Override
        public String toString() {
            return left + " " + token.getText() + " " + right;
        }
    };
}