001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.camel;
018    
019    import java.util.HashMap;
020    import java.util.Map;
021    
022    /**
023     * Represents the kind of message exchange pattern
024     *
025     * @version $Revision: 41910 $
026     */
027    public enum ExchangePattern {
028        InOnly, RobustInOnly, InOut, InOptionalOut, OutOnly, RobustOutOnly, OutIn, OutOptionalIn;
029    
030        protected static final Map<String, ExchangePattern> MAP = new HashMap<String, ExchangePattern>();
031    
032        /**
033         * Returns the WSDL URI for this message exchange pattern
034         */
035        public String getWsdlUri() {
036            switch (this) {
037            case InOnly:
038                return "http://www.w3.org/ns/wsdl/in-only";
039            case InOptionalOut:
040                return "http://www.w3.org/ns/wsdl/in-optional-out";
041            case InOut:
042                return "http://www.w3.org/ns/wsdl/in-out";
043            case OutIn:
044                return "http://www.w3.org/ns/wsdl/out-in";
045            case OutOnly:
046                return "http://www.w3.org/ns/wsdl/out-only";
047            case OutOptionalIn:
048                return "http://www.w3.org/ns/wsdl/out-optional_in";
049            case RobustInOnly:
050                return "http://www.w3.org/ns/wsdl/robust-in-only";
051            case RobustOutOnly:
052                return "http://www.w3.org/ns/wsdl/robust-out-only";
053            default:
054                throw new IllegalArgumentException("Unknown message exchange pattern: " + this);
055            }
056        }
057    
058        /**
059         * Return true if there can be an IN message
060         */
061        public boolean isInCapable() {
062            switch (this) {
063            case OutOnly:
064            case RobustOutOnly:
065                return false;
066            default:
067                return true;
068            }
069        }
070    
071        /**
072         * Return true if there can be an OUT message
073         */
074        public boolean isOutCapable() {
075            switch (this) {
076            case InOnly:
077            case RobustInOnly:
078                return false;
079            default:
080                return true;
081            }
082        }
083    
084        /**
085         * Return true if there can be a FAULT message
086         */
087        public boolean isFaultCapable() {
088            switch (this) {
089            case InOnly:
090            case OutOnly:
091                return false;
092            default:
093                return true;
094            }
095        }
096    
097        /**
098         * Converts the WSDL URI into a {@link ExchangePattern} instance
099         */
100        public static ExchangePattern fromWsdlUri(String wsdlUri) {
101            return MAP.get(wsdlUri);
102        }
103    
104        static {
105            for (ExchangePattern mep : values()) {
106                String uri = mep.getWsdlUri();
107                MAP.put(uri, mep);
108                String name = uri.substring(uri.lastIndexOf('/') + 1);
109                MAP.put("http://www.w3.org/2004/08/wsdl/" + name, mep);
110                MAP.put("http://www.w3.org/2006/01/wsdl/" + name, mep);
111            }
112        }
113    }