org.exoplatform.clouddrive.cmis.ecms.viewer.storage
Class PDFViewerStorage

java.lang.Object
  org.exoplatform.clouddrive.cmis.ecms.viewer.storage.PDFViewerStorage

public class PDFViewerStorage
extends Object

Convert cloud file to PDF file a store it in temporary local file on the file system. This file can be used for remote file representation in eXo Platform.
This class build on an idea of ECMS PDFViewerService but uses CloudFile instead of JCR Node for file data.
This service uses ExoCache as a weak storage of spooled locally cloud files. The storage will be cleaned if file/drive will be removed or the cache will be evicted.
Local files will be stored in JVM temporary folder in a tree hiearchy: repository/workspace/username/driveTitle/fileId.
If remote file is not in PDF format it will be attempted to convert it to the PDF by JodConverterService.
Created by The eXo Platform SAS

Version:

$Id: PDFViewerStorage.java 00000 Nov 25, 2014 pnedonosko $

Author:

Peter Nedonosko

Nested Class Summary

protected class	PDFViewerStorage.Evicter
protected class	PDFViewerStorage.FileKey
protected class	PDFViewerStorage.FilesCleaner
class	PDFViewerStorage.PDFFile

Field Summary

protected ConcurrentHashMap<String,PDFViewerStorage.FilesCleaner>	cleaners
static long	FILE_LIVE_TIME
protected org.exoplatform.services.cms.jodconverter.JodConverterService	jodConverter
static int	MAX_FILENAME_LENGTH
static String	PAGE_IMAGE_EXT
static String	PAGE_IMAGE_TYPE
static String	PDF_EXT
static String	PDF_TYPE
protected File	rootDir
protected ConcurrentHashMap<PDFViewerStorage.FileKey,PDFViewerStorage.PDFFile>	spool

Constructor Summary

PDFViewerStorage(org.exoplatform.services.cache.CacheService cacheService, org.exoplatform.services.cms.jodconverter.JodConverterService jodConverter)

Method Summary

PDFViewerStorage.PDFFile	createFile(String repository, String workspace, JCRLocalCMISDrive drive, org.exoplatform.clouddrive.CloudFile file)
PDFViewerStorage.PDFFile	getFile(String repository, String workspace, org.exoplatform.clouddrive.CloudDrive drive, String fileId)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MAX_FILENAME_LENGTH

public static final int MAX_FILENAME_LENGTH

See Also:

Constant Field Values

FILE_LIVE_TIME

public static final long FILE_LIVE_TIME

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Constant Field Values

PAGE_IMAGE_TYPE

public static final String PAGE_IMAGE_TYPE

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Constant Field Values

PDF_TYPE

public static final String PDF_TYPE

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Constant Field Values

PAGE_IMAGE_EXT

public static final String PAGE_IMAGE_EXT

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Constant Field Values

PDF_EXT

public static final String PDF_EXT

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Constant Field Values

spool

protected final ConcurrentHashMap<PDFViewerStorage.FileKey,PDFViewerStorage.PDFFile> spool

jodConverter

protected final org.exoplatform.services.cms.jodconverter.JodConverterService jodConverter

rootDir

protected final File rootDir

cleaners

protected final ConcurrentHashMap<String,PDFViewerStorage.FilesCleaner> cleaners

Constructor Detail

PDFViewerStorage

public PDFViewerStorage(org.exoplatform.services.cache.CacheService cacheService,
                        org.exoplatform.services.cms.jodconverter.JodConverterService jodConverter)
                 throws IOException

Throws:

IOException

Method Detail

getFile

public PDFViewerStorage.PDFFile getFile(String repository,
                                        String workspace,
                                        org.exoplatform.clouddrive.CloudDrive drive,
                                        String fileId)
                                 throws org.exoplatform.clouddrive.DriveRemovedException,
                                        javax.jcr.RepositoryException

Throws:

org.exoplatform.clouddrive.DriveRemovedException

javax.jcr.RepositoryException

createFile

public PDFViewerStorage.PDFFile createFile(String repository,
                                           String workspace,
                                           JCRLocalCMISDrive drive,
                                           org.exoplatform.clouddrive.CloudFile file)
                                    throws org.exoplatform.clouddrive.CloudDriveException,
                                           org.exoplatform.clouddrive.DriveRemovedException,
                                           javax.jcr.RepositoryException,
                                           IOException

Throws:

org.exoplatform.clouddrive.CloudDriveException

org.exoplatform.clouddrive.DriveRemovedException

javax.jcr.RepositoryException

IOException