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: 36321 $
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         * @return the WSDL URI for this message exchange pattern
036         */
037        public String getWsdlUri() {
038            switch (this) {
039            case InOnly:
040                return "http://www.w3.org/ns/wsdl/in-only";
041            case InOptionalOut:
042                return "http://www.w3.org/ns/wsdl/in-optional-out";
043            case InOut:
044                return "http://www.w3.org/ns/wsdl/in-out";
045            case OutIn:
046                return "http://www.w3.org/ns/wsdl/out-in";
047            case OutOnly:
048                return "http://www.w3.org/ns/wsdl/out-only";
049            case OutOptionalIn:
050                return "http://www.w3.org/ns/wsdl/out-optional_in";
051            case RobustInOnly:
052                return "http://www.w3.org/ns/wsdl/robust-in-only";
053            case RobustOutOnly:
054                return "http://www.w3.org/ns/wsdl/robust-out-only";
055            default:
056                throw new IllegalArgumentException("Unknown message exchange pattern: " + this);
057            }
058        }
059    
060        /**
061         * Return true if there can be an IN message
062         */
063        public boolean isInCapable() {
064            switch (this) {
065            case OutOnly:
066            case RobustOutOnly:
067                return false;
068            default:
069                return true;
070            }
071        }
072    
073        /**
074         * Return true if there can be an OUT message
075         */
076        public boolean isOutCapable() {
077            switch (this) {
078            case InOnly:
079            case RobustInOnly:
080                return false;
081            default:
082                return true;
083            }
084        }
085    
086        /**
087         * Return true if there can be a FAULT message
088         */
089        public boolean isFaultCapable() {
090            switch (this) {
091            case InOnly:
092            case OutOnly:
093                return false;
094            default:
095                return true;
096            }
097        }
098    
099        /**
100         * Converts the WSDL URI into a {@link ExchangePattern} instance
101         */
102        public static ExchangePattern fromWsdlUri(String wsdlUri) {
103            return MAP.get(wsdlUri);
104        }
105    
106        static {
107            for (ExchangePattern mep : values()) {
108                String uri = mep.getWsdlUri();
109                MAP.put(uri, mep);
110                String name = uri.substring(uri.lastIndexOf('/') + 1);
111                MAP.put("http://www.w3.org/2004/08/wsdl/" + name, mep);
112                MAP.put("http://www.w3.org/2006/01/wsdl/" + name, mep);
113            }
114        }
115    }