org.toobsframework.pres.url.mapping.strategy.DefaultDispatchStrategy.java Source code

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Here is the source code for org.toobsframework.pres.url.mapping.strategy.DefaultDispatchStrategy.java

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/*
 * This file is licensed to the Toobs Framework Group under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The Toobs Framework Group 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.toobsframework.pres.url.mapping.strategy;

import javax.servlet.http.HttpServletRequest;

import org.springframework.web.util.UrlPathHelper;
import org.springframework.web.util.WebUtils;
import org.toobsframework.pres.url.UrlDispatchInfo;

public class DefaultDispatchStrategy implements DispatchStrategy {

    private UrlPathHelper urlPathHelper = new UrlPathHelper();

    public UrlDispatchInfo resolveDispatchInfo(HttpServletRequest request) {
        String resourceId = resolveResouceId(request);
        String contentType = resolveContentType(request);
        return new UrlDispatchInfo(this.urlPathHelper.getLookupPathForRequest(request), resourceId, contentType);
    }

    protected String resolveResouceId(HttpServletRequest request) {
        String resourceId = (String) request.getAttribute(DISPATCH_RESOURCE_ID_ATTRIBUTE);
        if (resourceId == null) {
            String urlPath = this.urlPathHelper.getLookupPathForRequest(request);
            resourceId = WebUtils.extractFilenameFromUrlPath(urlPath);
        }
        return resourceId;
    }

    protected String resolveContentType(HttpServletRequest request) {
        String contentType = (String) request.getAttribute(DISPATCH_CONTENT_TYPE_ATTRIBUTE);
        if (contentType == null) {
            contentType = DEFAULT_CONTENT_TYPE;
        }
        return contentType;
    }

    public void setUrlPathHelper(UrlPathHelper urlPathHelper) {
        this.urlPathHelper = urlPathHelper;
    }

}