com.astamuse.asta4d.web.dispatch.AntPathRuleExtractor Maven / Gradle / Ivy

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/*
 * Copyright 2012 astamuse company,Ltd.
 * 
 * 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.astamuse.asta4d.web.dispatch;

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import com.astamuse.asta4d.web.copyleft.SpringAntPathMatcher;
import com.astamuse.asta4d.web.dispatch.mapping.UrlMappingResult;
import com.astamuse.asta4d.web.dispatch.mapping.UrlMappingRule;

public class AntPathRuleExtractor implements DispatcherRuleExtractor {
    private SpringAntPathMatcher pathMatcher = new SpringAntPathMatcher();

    @Override
    public UrlMappingResult findMappedRule(HttpServletRequest request, List ruleList) {
        try {
            String uri = URLDecoder.decode(request.getRequestURI(), "UTF-8");
            String contextPath = request.getContextPath();
            uri = uri.substring(contextPath.length());

            String method = request.getMethod().toUpperCase();

            UrlMappingResult mappingResult = null;
            String srcPath;
            HttpMethod ruleMethod;
            for (UrlMappingRule rule : ruleList) {
                ruleMethod = rule.getMethod();
                if (ruleMethod != null) {
                    if (!ruleMethod.toString().equals(method)) {
                        continue;
                    }
                }
                srcPath = rule.getSourcePath();
                if (pathMatcher.match(srcPath, uri)) {
                    mappingResult = new UrlMappingResult();
                    Map pathVarMap = new HashMap<>();
                    pathVarMap.putAll(pathMatcher.extractUriTemplateVariables(srcPath, uri));
                    mappingResult.setPathVarMap(pathVarMap);
                    mappingResult.setRule(rule);
                    break;
                }
            }

            return mappingResult;
        } catch (UnsupportedEncodingException e) {
            throw new RuntimeException(e);
        }

    }
}