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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.adapter;
17  
18  import org.apache.camel.Exchange;
19  import org.apache.camel.Expression;
20  
21  /**
22   * An expression that evaluates to a constant parameter array inpdependent of
23   * the {@link Exchange} argument.
24   * 
25   * @author Martin Krasser
26   */
27  public class StaticParams implements Expression {
28  
29      private final Object[] params;
30  
31      /**
32       * Creates a new {@link StaticParams} expression.
33       * 
34       * @param params
35       *            the constant evaluation result.
36       */
37      public StaticParams(Object... params) {
38          this.params = params;
39      }
40      
41      /**
42       * Evaluates to the params array used to construct this expression.
43       * 
44       * @param exchange
45       *            ignored.
46       * @param type
47       *            ignored.
48       */
49  	@Override
50  	public <T> T evaluate(Exchange exchange, Class<T> type) {
51  		return type.cast(params);
52  	}
53  
54  }