CustomerBalanceService.java

/**
 * 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.coheigea.cxf.oauth1.balanceservice;


import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.SecurityContext;

/**
 * A "Balance" service for a bank. It checks that a user has authenticated and that the username
 * is the same as the desired user.
 */
public class CustomerBalanceService extends BalanceService {
    @Context
    private SecurityContext securityContext;
    
    @Override
    protected void authenticateUser(String user) {
        if (securityContext.getUserPrincipal() == null || user == null
            || !user.equals(securityContext.getUserPrincipal().getName())) {
            throw new WebApplicationException(Response.Status.FORBIDDEN);
        }
    }
    
    @POST
    @Path("/{user}")
    public void setBalance(@PathParam("user") String user, int amount) {
        authenticateUser(user);
        
        if (!balances.containsKey(user)) {
            balances.put(user, amount);
        }
    }
    
}