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/**
 * 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.cxf.jaxrs.model;

import java.lang.reflect.Method;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;


public class MethodDispatcher {
    private Map oriToMethod = 
        new LinkedHashMap();
    private Map methodToOri = 
        new LinkedHashMap();
    private ConcurrentHashMap proxyMethodMap = new ConcurrentHashMap();
    
    public MethodDispatcher() {
        
    }
    
    MethodDispatcher(MethodDispatcher md, ClassResourceInfo cri) {
        for (OperationResourceInfo ori : md.getOperationResourceInfos()) {    
            OperationResourceInfo clone = new OperationResourceInfo(ori, cri);
            oriToMethod.put(clone, clone.getMethodToInvoke());
            methodToOri.put(clone.getMethodToInvoke(), clone);
        }
    }
    
    public void bind(OperationResourceInfo o, Method... methods) {
        Method primary = methods[0];

        for (Method m : methods) {
            methodToOri.put(m, o);
        }

        oriToMethod.put(o, primary);
    }

    public OperationResourceInfo getOperationResourceInfo(Method method) {
        return methodToOri.get(method);
    }

    public Set getOperationResourceInfos() {
        return oriToMethod.keySet();
    }

    public Method getMethod(OperationResourceInfo op) {
        return oriToMethod.get(op);
    }
    
    public Method getProxyMethod(Method m) {
        return proxyMethodMap.get(m);
    }
    
    public void addProxyMethod(Method m, Method proxyM) {
        proxyMethodMap.putIfAbsent(m, proxyM);
    }
}