org.turro.elephant.download.ContentDownload Class Reference

Inheritance diagram for org.turro.elephant.download.ContentDownload:

Collaboration diagram for org.turro.elephant.download.ContentDownload:

Public Member Functions
boolean	itsMe (String id)
boolean	myTurn (HttpServletRequest request)
void	execute (ServletContext context, HttpServletRequest request, HttpServletResponse response)

Static Public Member Functions
static String	createURL (IConstructor constructor, ContentStream onDownload)
static String	getIdentifier ()

Static Public Attributes
static final MimetypesFileTypeMap	MIME_TYPES_FILE_MAP = new MimetypesFileTypeMap()

Detailed Description

Author

Lluis Turró Cutiller lluis.nosp@m.@tur.nosp@m.ro.or.nosp@m.g

Definition at line 46 of file ContentDownload.java.

Member Function Documentation

createURL()

static String org.turro.elephant.download.ContentDownload.createURL ( IConstructor  constructor, ContentStream  onDownload  )

static

Definition at line 51 of file ContentDownload.java.

                                                                                     {
    Map<String, ContentStream> downKeys = (Map<String, ContentStream>) constructor.getSessionAttribute(CONTENT_DOWNLOAD_KEY);
    if(downKeys == null) {
      downKeys = new HashMap<>();
    }
    String key = Cipher.digest(IdGenerator.generateHex() + "", 40);
    downKeys.put(key, onDownload);
    constructor.setSessionAttribute(CONTENT_DOWNLOAD_KEY, downKeys);
    return ElephantContext.getRootWebPath() + DirectContents.DIRECT_CONTENT_PATH + getIdentifier() + "?id=" + key;
  }

Here is the call graph for this function:

execute()

void org.turro.elephant.download.ContentDownload.execute	(	ServletContext	context,
		HttpServletRequest	request,
		HttpServletResponse	response
	)

Implements org.turro.elephant.direct.IDirectContent.

Definition at line 77 of file ContentDownload.java.

                                                                                                        {
    Map<String, Predicate<ContentStream>> downKeys = (Map<String, Predicate<ContentStream>>) request.getSession().getAttribute(CONTENT_DOWNLOAD_KEY);
    if(downKeys != null) {
      ContentStream onDownload = (ContentStream) downKeys.get(request.getParameter("id"));
      if(onDownload != null) {
        try {
          String fileName = onDownload.getFileName();
          String contentType = MIME_TYPES_FILE_MAP.getContentType(fileName);
 
          response.setHeader("pragma", "no-cache");
          response.setHeader("Cache-control", "no-cache, no-store, must-revalidate");
          response.setHeader("Expires", "01 Apr 1995 01:10:10 GMT");
 
          if(contentType!=null) {
            response.setContentType(contentType);
          }
 
          if(fileName != null) {
            fileName = fileName.substring(fileName.lastIndexOf('\\')+1);
            fileName = fileName.substring(fileName.lastIndexOf('/')+1);
 
            StringBuilder contentDisposition = new StringBuilder();
 
            contentDisposition.append("filename=\"");
            contentDisposition.append(fileName);
            contentDisposition.append("\"");
 
            response.setHeader("Content-Disposition", contentDisposition.toString());
            response.setHeader("Content-Lenght", onDownload.getFileSize() + "");
          }
 
          IOUtils.copy(onDownload.getInputStream(), response.getOutputStream());
 
          SystemLogger.info()
                  .entityPath("/file" + ElephantContext.getRelativePath(onDownload.getAbsolutePath()))
                  .entityName(fileName).comment("downloaded")
                  .log();
        } catch (IOException ex) {
          Logger.getLogger(ContentDownload.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
        }
      }
    }
  }

Here is the call graph for this function:

getIdentifier()

static String org.turro.elephant.download.ContentDownload.getIdentifier ( )

static

Definition at line 62 of file ContentDownload.java.

                                       {
    return ContentDownload.class.getAnnotation(DirectContent.class).identifier();
  }

itsMe()

boolean org.turro.elephant.download.ContentDownload.itsMe

(

String

id

)

Implements org.turro.elephant.direct.IDirectContent.

Definition at line 67 of file ContentDownload.java.

                                  {
    return getIdentifier().equals(id);
  }

myTurn()

boolean org.turro.elephant.download.ContentDownload.myTurn

(

HttpServletRequest

request

)

Implements org.turro.elephant.direct.IDirectContent.

Definition at line 72 of file ContentDownload.java.

                                                    {
    return DirectContents.isYourTurn(request, getIdentifier());
  }

Here is the call graph for this function:

Member Data Documentation

MIME_TYPES_FILE_MAP

final MimetypesFileTypeMap org.turro.elephant.download.ContentDownload.MIME_TYPES_FILE_MAP = new MimetypesFileTypeMap()

static

Definition at line 49 of file ContentDownload.java.

---

The documentation for this class was generated from the following file:

• ContentDownload.java