package com.google.job.servlets;

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

import com.google.job.data.*;

/** Servlet that gets job listings. */
@WebServlet("/jobs")
public final class GetJobsServlet extends HttpServlet {

    private JobsDatabase jobsDatabase;

    @Override
    public void init() {
        this.jobsDatabase = new JobsDatabase();
    }

    @Override
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
        // TODO(issue/44): implement GET jobs servlet
    }
}

@@ -419,16 +419,252 @@
 vlet %7B%0A%0A
+    public static final String SORT_BY_PARAM = %22sortBy%22;%0A    public static final String ORDER_PARAM = %22order%22;%0A    public static final String PAGE_SIZE_PARAM = %22pageSize%22;%0A    public static final String PAGE_INDEX_PARAM = %22pageIndex%22;%0A%0A
     priv
@@ -916,53 +916,3234 @@
     
-// TODO(issue/44): implement GET jobs servlet
+try %7B%0A            Filter sortBy = parseSortBy(request);%0A            Order order = parseOrder(request);%0A            int pageSize = parsePageSize(request);%0A            int pageIndex = parsePageIndex(request);%0A            // TODO(issue/44): get jobs from the database%0A        %7D catch(IllegalArgumentException e) %7B%0A            response.setStatus(HttpServletResponse.SC_BAD_REQUEST);%0A        %7D%0A    %7D%0A%0A    /**%0A     * Returns the sorting as a Filter enum.%0A     *%0A     * @param request From the GET request.%0A     * @return Filter enum given the id in the request params.%0A     * @throws IllegalArgumentException if the id is invalid.%0A     */%0A    private Filter parseSortBy(HttpServletRequest request) throws IllegalArgumentException %7B%0A        String sortById = (String) request.getParameter(SORT_BY_PARAM);%0A%0A        if (sortById == null %7C%7C sortById.isEmpty()) %7B%0A            throw new IllegalArgumentException(%22sort by param should not be null or empty%22);%0A        %7D%0A%0A        return Filter.getFromId(sortById); // IAE may be thrown%0A    %7D%0A%0A    /**%0A     * Returns the ordering as an Order enum.%0A     *%0A     * @param request From the GET request.%0A     * @return Order enum given the id in the request params.%0A     * @throws IllegalArgumentException if the id is invalid.%0A     */%0A    private Order parseOrder(HttpServletRequest request) throws IllegalArgumentException %7B%0A        String orderId = (String) request.getParameter(ORDER_PARAM);%0A%0A        if (orderId == null %7C%7C orderId.isEmpty()) %7B%0A            throw new IllegalArgumentException(%22order param should not be null or empty%22);%0A        %7D%0A%0A        return Order.getFromId(orderId); // IAE may be thrown%0A    %7D%0A%0A    /**%0A     * Returns the page size as an int.%0A     *%0A     * @param request From the GET request.%0A     * @return the page size.%0A     * @throws IllegalArgumentException if the page size is invalid.%0A     */%0A    private int parsePageSize(HttpServletRequest request) throws IllegalArgumentException %7B%0A        String pageSizeStr = (String) request.getParameter(PAGE_SIZE_PARAM);%0A%0A        if (pageSizeStr == null %7C%7C pageSizeStr.isEmpty()) %7B%0A            throw new IllegalArgumentException(%22page size param should not be null or empty%22);%0A        %7D%0A%0A        try %7B%0A           int pageSize =  Integer.parseInt(pageSizeStr);%0A           return pageSize;%0A        %7D catch(NumberFormatException e) %7B%0A            throw new IllegalArgumentException(%22page size param should be an int%22)%0A        %7D%0A    %7D%0A%0A    /**%0A     * Returns the page index as an int.%0A     *%0A     * @param request From the GET request.%0A     * @return the page index.%0A     * @throws IllegalArgumentException if the page index is invalid.%0A     */%0A    private int parsePageIndex(HttpServletRequest request) throws IllegalArgumentException %7B%0A        String pageIndexStr = (String) request.getParameter(PAGE_INDEX_PARAM);%0A%0A        if (pageIndexStr == null %7C%7C pageIndexStr.isEmpty()) %7B%0A            throw new IllegalArgumentException(%22page index param should not be null or empty%22);%0A        %7D%0A%0A        try %7B%0A            int pageIndex =  Integer.parseInt(pageIndexStr);%0A            return pageIndex;%0A        %7D catch(NumberFormatException e) %7B%0A            throw new IllegalArgumentException(%22page index param should be an int%22)%0A        %7D
 %0A   

add parsing methods