com.cpjit.swagger4j.support.servlet.ApiServlet.java Source code

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Here is the source code for com.cpjit.swagger4j.support.servlet.ApiServlet.java

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/*
 * Copyright 2011-2017 CPJIT Group.
 * 
 * 
 * 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.cpjit.swagger4j.support.servlet;

import com.cpjit.swagger4j.support.Constants;
import com.cpjit.swagger4j.support.internal.ApiViewWriter;
import com.cpjit.swagger4j.support.internal.DefaultApiViewWriter;
import org.apache.commons.lang3.StringUtils;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * @author yonghuan
 * @since 1.0.0
 */
@SuppressWarnings("serial")
public class ApiServlet extends HttpServlet implements Constants {

    private ApiViewWriter apiViewWriter = new DefaultApiViewWriter();

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String uri = req.getRequestURI();
        if (uri.matches(".*/api/index(/?)(!/)*")) {
            toIndex(req, resp);
        } else if (uri.matches(".*/api/statics/.+")) {
            queryStatic(req, resp);
        } else {
            try {
                queryApi(req, resp);
            } catch (Exception e) {
                throw new ServletException(e);
            }
        }
    }

    private void toIndex(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String lang = request.getParameter("lang");
        if (StringUtils.isBlank(lang)) {
            lang = DEFAULT_LANG;
        }
        apiViewWriter.writeIndex(request, response, lang);
    }

    /*
     * @since 1.2.0
     */
    private void queryStatic(HttpServletRequest request, HttpServletResponse response) throws IOException {
        apiViewWriter.writeStatic(request, response);
    }

    private void queryApi(HttpServletRequest request, HttpServletResponse response) throws Exception {
        apiViewWriter.writeApis(request, response);
    }

}