/*
* Copyright 2014-2016 CyberVision, Inc.
*
* 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 org.kaaproject.kaa.server.admin.servlet;
import net.iharder.Base64;
import org.kaaproject.kaa.common.dto.file.FileData;
import org.kaaproject.kaa.server.admin.services.cache.CacheService;
import org.kaaproject.kaa.server.admin.shared.servlet.ServletParams;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.context.support.SpringBeanAutowiringSupport;
import java.io.IOException;
import java.net.URLDecoder;
import javax.servlet.Servlet;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class SdkServlet extends HttpServlet implements Servlet, ServletParams {
/**
* The Constant LOG.
*/
private static final Logger LOG = LoggerFactory.getLogger(SdkServlet.class);
private static final long serialVersionUID = 4151191758109799417L;
private static final int BUFFER = 1024 * 100;
@Autowired
private CacheService cacheService;
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
SpringBeanAutowiringSupport.processInjectionBasedOnServletContext(this,
config.getServletContext());
}
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String sdkKeyBase64 = URLDecoder.decode(request.getParameter(SDK_KEY_PARAMETER), "UTF-8");
try {
CacheService.SdkKey key = (CacheService.SdkKey) Base64
.decodeToObject(sdkKeyBase64, Base64.URL_SAFE, null);
FileData sdkFile = cacheService.getSdk(key);
response.setContentType(sdkFile.getContentType());
ServletUtils.prepareDisposition(request, response, sdkFile.getFileName());
response.setContentLength(sdkFile.getFileData().length);
response.setBufferSize(BUFFER);
response.getOutputStream().write(sdkFile.getFileData());
response.flushBuffer();
} catch (Exception ex) {
LOG.error("Unexpected error in SdkServlet.doGet: ", ex);
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Unable to get Sdk file: "
+ ex.getMessage());
}
}
}