1 /*
2 * Copyright 2008 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.openehealth.ipf.platform.camel.core.closures;
17
18 import groovy.lang.Closure;
19 import groovy.transform.stc.ClosureParams;
20 import groovy.transform.stc.SimpleType;
21 import org.apache.camel.Exchange;
22 import org.apache.camel.Expression;
23
24 /**
25 * An expression that delegates to a {@link Closure}
26 *
27 * @author Martin Krasser
28 */
29 public class DelegatingExpression extends ClosureAdapter implements Expression {
30
31 public DelegatingExpression(@ClosureParams(value = SimpleType.class, options = { "org.apache.camel.Expression"})
32 Closure closure) {
33 super(closure);
34 }
35
36 @Override
37 public <T> T evaluate(Exchange exchange, Class<T> type) {
38 return type.cast(call(exchange));
39 }
40
41 }