/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.camel.language.groovy;
import groovy.lang.Closure;
import org.apache.camel.Exchange;
import org.apache.camel.impl.ExpressionSupport;
import org.apache.camel.model.ChoiceDefinition;
import org.apache.camel.model.FilterDefinition;
import org.apache.camel.model.ProcessorDefinition;
/**
* @version
*/
public final class CamelGroovyMethods {
private CamelGroovyMethods() {
// Utility Class
}
public static FilterDefinition filter(ProcessorDefinition self, Closure filter) {
return self.filter(toExpression(filter));
}
public static ChoiceDefinition when(ChoiceDefinition self, Closure filter) {
return self.when(toExpression(filter));
}
public static ExpressionSupport toExpression(final Closure filter) {
return new ExpressionSupport() {
protected String assertionFailureMessage(Exchange exchange) {
return filter.toString();
}
public <T> T evaluate(Exchange exchange, Class<T> type) {
Object result = filter.call(exchange);
return exchange.getContext().getTypeConverter().convertTo(type, result);
}
@Override
public String toString() {
return "Groovy[" + filter + "]";
}
};
}
}