Examples of org.apache.camel.support.ExpressionAdapter

org.apache.camel.support.ExpressionAdapter
A helper class for developers wishing to implement an {@link org.apache.camel.Expression}using Java code with a minimum amount of code to write so that the developer only needs to implement one of the {@link #evaluate(org.apache.camel.Exchange,Class)} or{@link #evaluate(org.apache.camel.Exchange)} methods. @version

     * given regex
     */
    public static Expression regexTokenizeExpression(final Expression expression,
                                                     final String regexTokenizer) {
        final Pattern pattern = Pattern.compile(regexTokenizer);
        return new ExpressionAdapter() {
            public Object evaluate(Exchange exchange) {
                Object value = expression.evaluate(exchange, Object.class);
                Scanner scanner = ObjectHelper.getScanner(exchange, value);
                scanner.useDelimiter(pattern);
                return scanner;

View Full Code Here

            }
        };
    }


    public static Expression groupIteratorExpression(final Expression expression, final String token, final int group) {
        return new ExpressionAdapter() {
            public Object evaluate(Exchange exchange) {
                // evaluate expression as iterator
                Iterator<?> it = expression.evaluate(exchange, Iterator.class);
                ObjectHelper.notNull(it, "expression: " + expression + " evaluated on " + exchange + " must return an java.util.Iterator");
                return new GroupIterator(exchange, it, token, group);

View Full Code Here

     * <p/>
     * The expression is evaluated as a {@link List} object to allow sorting.
     */
    @SuppressWarnings({"unchecked", "rawtypes"})
    public static Expression sortExpression(final Expression expression, final Comparator comparator) {
        return new ExpressionAdapter() {
            public Object evaluate(Exchange exchange) {
                List<?> list = expression.evaluate(exchange, List.class);
                Collections.sort(list, comparator);
                return list;
            }

View Full Code Here

     * replaceAll to transform the String and return the result
     */
    public static Expression regexReplaceAll(final Expression expression,
                                             final String regex, final String replacement) {
        final Pattern pattern = Pattern.compile(regex);
        return new ExpressionAdapter() {
            public Object evaluate(Exchange exchange) {
                String text = expression.evaluate(exchange, String.class);
                if (text == null) {
                    return null;
                }

View Full Code Here

     */
    public static Expression regexReplaceAll(final Expression expression,
                                             final String regex, final Expression replacementExpression) {


        final Pattern pattern = Pattern.compile(regex);
        return new ExpressionAdapter() {
            public Object evaluate(Exchange exchange) {
                String text = expression.evaluate(exchange, String.class);
                String replacement = replacementExpression.evaluate(exchange, String.class);
                if (text == null || replacement == null) {
                    return null;

View Full Code Here


    /**
     * Appends the String evaluations of the two expressions together
     */
    public static Expression append(final Expression left, final Expression right) {
        return new ExpressionAdapter() {
            public Object evaluate(Exchange exchange) {
                return left.evaluate(exchange, String.class) + right.evaluate(exchange, String.class);
            }


            @Override

View Full Code Here


    /**
     * Prepends the String evaluations of the two expressions together
     */
    public static Expression prepend(final Expression left, final Expression right) {
        return new ExpressionAdapter() {
            public Object evaluate(Exchange exchange) {
                return right.evaluate(exchange, String.class) + left.evaluate(exchange, String.class);
            }


            @Override

View Full Code Here

     * @param expressions the expression to be concatenated dynamically
     * @param expression the text description of the expression
     * @return an expression which when evaluated will return the concatenated values
     */
    public static Expression concatExpression(final Collection<Expression> expressions, final String expression) {
        return new ExpressionAdapter() {
            public Object evaluate(Exchange exchange) {
                StringBuilder buffer = new StringBuilder();
                for (Expression expression : expressions) {
                    String text = expression.evaluate(exchange, String.class);
                    if (text != null) {

View Full Code Here


    /**
     * Returns an Expression for the inbound message id
     */
    public static Expression messageIdExpression() {
        return new ExpressionAdapter() {
            public Object evaluate(Exchange exchange) {
                return exchange.getIn().getMessageId();
            }


            @Override

View Full Code Here


    /**
     * Returns an Expression for the exchange id
     */
    public static Expression exchangeIdExpression() {
        return new ExpressionAdapter() {
            public Object evaluate(Exchange exchange) {
                return exchange.getExchangeId();
            }


            @Override

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of org.apache.camel.support.ExpressionAdapter

org.apache.camel.builder.ExpressionBuilder

org.apache.camel.component.bean.CustomParameterMappingStrategyTest$MyCustomStrategy

org.apache.camel.component.hl7.HL7

org.apache.camel.component.hl7.TerserLanguage

org.apache.camel.component.jgroups.JGroupsExpressions

org.apache.camel.component.jpa.JpaEndpoint

org.apache.camel.issues.NeilSplitterTest

org.apache.camel.language.ref.RefLanguage

org.apache.camel.model.InterceptFromDefinition

org.apache.camel.processor.SetHeaderUsingDslExpressionsTest

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.