byps.test.servlet.BypsServlet.java Source code

Introduction

Here is the source code for byps.test.servlet.BypsServlet.java

Source

package byps.test.servlet;

/* USE THIS FILE ACCORDING TO THE COPYRIGHT RULES IN LICENSE.TXT WHICH IS PART OF THE SOURCE CODE PACKAGE */
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Collection;

import javax.servlet.annotation.WebInitParam;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import byps.BApiDescriptor;
import byps.http.HConfig;
import byps.http.HConfigImpl;
import byps.http.HFileUploadItem;
import byps.http.HHttpServlet;
import byps.http.HSession;
import byps.http.HTestAdapter;
import byps.test.api.BApiDescriptor_Testser;

/**
 * Servlet implementation class BypsServlet
 */

@WebServlet(

        // mandatory: must be true
        asyncSupported = true,

        // optional: load servlet on startup
        loadOnStartup = 1,

        // mandatory: server URL pattern
        // The second pattern is used for authentication. It has to point to a different directory,
        // because some browsers initiate the HTTP authentication handshake in each request. By convention,
        // see HWireClient.getServletPathForNegotiationAndAuthentication(), the serlet path is 
        // [servlet-name]auth/auth.
        urlPatterns = { "/bypsservlet", "/bypsservletauth/auth" },

        // never true in production environments
        initParams = { @WebInitParam(name = "testAdapterEnabled", value = "true")

        })
public class BypsServlet extends HHttpServlet {
    private static final long serialVersionUID = 1L;
    private File tempDir = new File("d:\\temp\\bypssrv");

    public BypsServlet() {
        // temp. Verzeichnis fr Streams
        if (tempDir == null) {
            String tempDirStr = System.getProperty("java.io.tmpdir");
            if (tempDirStr != null && tempDirStr.length() != 0) {
                tempDir = new File(tempDirStr);
            }
        }
        tempDir.mkdirs();
    }

    @Override
    protected HSession createSession(HttpSession hsess, String remoteUser) {
        if (log.isDebugEnabled())
            log.debug("createSession(");
        if (log.isDebugEnabled())
            log.debug("remoteUser=" + remoteUser);

        HSession sess = new MySession(hsess, remoteUser, this);
        if (log.isDebugEnabled())
            log.debug(")createSession=" + sess);
        return sess;
    }

    @Override
    protected void makeHtmlUploadResult(HttpServletRequest request, HttpServletResponse response,
            Collection<HFileUploadItem> items) throws IOException {
        String uploadHandler = request.getParameter("uploadHandler");
        if (uploadHandler.equals("htmlform")) {
            super.makeHtmlUploadResult(request, response, items);
        } else if (uploadHandler.equals("blueimp")) {

            // File upload solution from Sebastian Tschan.
            // see https://github.com/blueimp/jQuery-File-Upload/wiki/Setup

            String acceptHeader = request.getHeader("Accept");
            if (acceptHeader != null && acceptHeader.indexOf("application/json") >= 0) {
                response.setContentType("application/json");
            } else {
                response.setContentType("text/html");
            }

            PrintWriter wr = response.getWriter();
            wr.print("{\"files\":[");
            boolean first = true;
            for (HFileUploadItem item : items) {
                if (first)
                    first = !first;
                else
                    wr.println(",");
                wr.print("{");

                wr.print("\"name\":\"");
                wr.print(item.fileName);
                wr.print("\",");

                wr.print("\"size\":\"");
                wr.print(item.contentLength);
                wr.print("\",");

                wr.print("\"streamId\":\"");
                wr.print(item.streamId);
                wr.print("\"");

                wr.print("}");
            }
            wr.print("]}");
            response.getWriter().close();

        }
    }

    @Override
    protected long getHtmlUploadMaxSize() {
        return super.getHtmlUploadMaxSize(); // returns -1L -> no constrain
    }

    /**
     * Overrides the testAdapter function in order to modify the application
     * version.
     */
    @Override
    protected void doTestAdapter(HttpServletRequest request, HttpServletResponse response) throws IOException {

        if (!config.isTestAdapterEnabled()) {
            response.setStatus(HttpServletResponse.SC_FORBIDDEN);
            return;
        }

        final String testAdapter = request.getParameter(HTestAdapter.KEY_PARAM);
        if (testAdapter == null) {
            response.setStatus(HttpServletResponse.SC_FORBIDDEN);
            return;
        }

        if (testAdapter.equals(HTestAdapter.SET_SERVER_APP_VERSION)) {
            String versionStr = request.getParameter(HTestAdapter.VERSION);
            MySession.appVersion = Integer.parseInt(versionStr);
            return;
        }

        super.doTestAdapter(request, response);
    }

    @Override
    protected BApiDescriptor getApiDescriptor() {
        return BApiDescriptor_Testser.instance();
    }

    @Override
    public HConfig getConfig() {
        return config;
    }

    @Override
    protected void initializationFinished() {
    }

    private final Log log = LogFactory.getLog(BypsServlet.class);
    private final HConfigImpl config = new HConfigImpl();

}