com.ecsteam.springutils.pattern.controller.PatternController.java Source code

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/**************************************************************************
 * Copyright 2015 ECS Team, Inc.
 *  
 * Licensed 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 com.ecsteam.springutils.pattern.controller;

import javax.servlet.http.HttpServletRequest;

import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
import org.springframework.security.web.util.matcher.RegexRequestMatcher;
import org.springframework.security.web.util.matcher.RequestMatcher;
import org.springframework.util.Assert;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import com.ecsteam.springutils.pattern.model.PatternRequest;
import com.ecsteam.springutils.pattern.model.PatternResponse;
import com.ecsteam.springutils.pattern.model.PatternType;

/**
 * 
 * @author Josh Ghiloni <jghiloni@ecsteam.com>
 */
@RestController
public class PatternController {
    @RequestMapping(value = "/alive", method = RequestMethod.HEAD)
    public void isAlive() {
        return;
    }

    /**
     * Will determine if a given URI matches a specified pattern, either in ant or regex format
     * 
     * @param request The JSON from the client, deserialized
     * @return The original request, plus an execution timestamp and whether or not the request matched
     */
    @RequestMapping(value = "/testpattern", method = RequestMethod.POST)
    public PatternResponse testPattern(@RequestBody PatternRequest request) {
        Assert.notNull(request);
        PatternResponse response = new PatternResponse(request);

        RequestMatcher matcher = getRequestMatcher(request);

        HttpServletRequest httpRequest = new PatternServletRequest(request.getTestUri());

        response.setMatched(matcher.matches(httpRequest));
        response.setTimestamp(System.currentTimeMillis());
        return response;
    }

    /**
     * Build a Spring Security {@link RequestMatcher} from the request
     * 
     * @param request
     * @return
     */
    private RequestMatcher getRequestMatcher(PatternRequest request) {
        RequestMatcher matcher = null;

        Assert.notNull(request.getPattern());
        Assert.notNull(request.getType());

        PatternType type = PatternType.valueOf(request.getType());

        if (type == PatternType.ANT) {
            matcher = new AntPathRequestMatcher(request.getPattern());
        } else if (type == PatternType.REGEX) {
            matcher = new RegexRequestMatcher(request.getPattern(), null);
        } else {
            throw new IllegalArgumentException();
        }

        return matcher;
    }
}