ch.interlis.ilirepository.impl
Class RepositoryAccess

java.lang.Object
  ch.interlis.ilirepository.impl.RepositoryAccess

public class RepositoryAccess
extends java.lang.Object

Handles access to a file in a repository. Hides the caching, downloading of files.

Author:

ceis

Constructor Summary

RepositoryAccess()

Method Summary

static java.lang.String	calcMD5(java.io.File file) Calculates the digest of a local file.
IliFiles	getIliFiles(java.lang.String uri) Gets the list of ili-files for a given repository.
IliSite	getIliSite(java.lang.String uri) Gets the site metadata for a given repository.
java.io.File	getLocalFileLocation(java.lang.String uri, java.lang.String filename, long maxTTL, java.lang.String md5) Gets access to a file.
void	setCache(java.io.File localdir) Sets the local folder to be used for caching remote files.

Methods inherited from class java.lang.Object

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

Constructor Detail

RepositoryAccess

public RepositoryAccess()

Method Detail

setCache

public void setCache(java.io.File localdir)

Sets the local folder to be used for caching remote files.

getIliFiles

public IliFiles getIliFiles(java.lang.String uri)

Gets the list of ili-files for a given repository.

Parameters:

uri - local or remote repository

Returns:

list of ili-files or null if no such repository or offline.

getIliSite

public IliSite getIliSite(java.lang.String uri)

Gets the site metadata for a given repository.

Parameters:

uri - local or remote repository

Returns:

site metadata or null if no such repository or offline.

getLocalFileLocation

public java.io.File getLocalFileLocation(java.lang.String uri,
                                         java.lang.String filename,
                                         long maxTTL,
                                         java.lang.String md5)
                                  throws RepositoryAccessException

Gets access to a file. If the file is in a remote repository, it will be downloaded to the cache and path to the version in the cache is returned. If the file is already in the cache, the repository will be checked for never version depending on age of cached file and md5 digest.

Parameters:

uri - remote or local repository

filename - file/path to download from repository. If null, uri includes the file name.

maxTTL - max age of file in cache before downloading it again.

md5 - digest of remote file or null. If cached version has a different digest, download remote file again.

Returns:

local file or null if it doesn't exist in remote repository

Throws:

RepositoryAccessException

calcMD5

public static java.lang.String calcMD5(java.io.File file)

Calculates the digest of a local file.

Parameters:

file - local file

Returns:

md5 digest of local file content.