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Class semper.download.VmfClass 

java.lang.Object
   |
   +----semper.download.VmfClass
public class VmfClass
extends Object
implements Serializable
VmfClass implements the Version Management File(VMF) that keeps information about the state for each package contained in the SEMPER software tool.

Version:
$Revision: 1.4 $ $Date: 1998/05/28 15:10:03 $
Author:
Petros Pantis, Kostas Tzelepis

Variable Index

o certStore
Contains the reference of the Certificate Blocks contained in the associated VMF

Constructor Index

o VmfClass()
VmfClass object constructor
o VmfClass(String)
VmfClass object constructor.

Method Index

o add(CertificateBlock)
Inserts a new certificate block in the current VMF structure
o addCertBlock(String, Object[])
Adds a updated certificate block to a vector object
o checkVmfContents(Hashtable, Download, RandomAccessFile)
Checks the contents of the current VMF with the local stored files
o compareVmfs(Hashtable, Vector)
Compares a list of VMFs with a list of certificate blocks
o getCerts()
Retieves all the contained certificate blocks
o getDiffs(CertificateBlock)
Compares a passed certificate block with the current VMF
o getDiffs(Vector, Vector[])
Compares a list of certificate blocks with the current VMF structure
o getFileList(String)
o getPath()
Retieves the path in which the VMF is located
o getVersion()
Retieves the version list of all the contained certificate blocks
o printSelf()
Method used for debugging reasons

Variables

o certStore 
 public Hashtable certStore
Contains the reference of the Certificate Blocks contained in the associated VMF

Constructors

o VmfClass 
 public VmfClass()
VmfClass object constructor

o VmfClass 
 public VmfClass(String dirname)
VmfClass object constructor. Additional the package path name is passed

Parameters:
dirname - package path name

Methods

o getCerts 
 public Hashtable getCerts()
Retieves all the contained certificate blocks

Returns:
value the contained certificate blocks
o getDiffs 
 public int getDiffs(CertificateBlock cb)
Compares a passed certificate block with the current VMF

o getDiffs 
 public boolean getDiffs(Vector certblockinfo,
                         Vector diff[])
Compares a list of certificate blocks with the current VMF structure

Parameters:
certblockinfo - the list of certificate blocks
diff - the storage object in which the changes are registered
Returns:
value true, if changes are found
o compareVmfs 
 public static Vector[] compareVmfs(Hashtable vmflocal,
                                    Vector certBlockElements)
Compares a list of VMFs with a list of certificate blocks

Parameters:
vmflocal - the list of local VMFs
certBlockElements - the list of obtained certificate blocks
Returns:
value a list of changes found during the above comparison
o getPath 
 public String getPath()
Retieves the path in which the VMF is located

Returns:
value the path name
o getVersion 
 public Vector getVersion()
Retieves the version list of all the contained certificate blocks

Returns:
value a list of the certificate block versions
o add 
 public boolean add(CertificateBlock cb)
Inserts a new certificate block in the current VMF structure

Parameters:
cb - the new certificate block
Returns:
value true, on success
o addCertBlock 
 public boolean addCertBlock(String certId,
                             Object retVec[])
Adds a updated certificate block to a vector object

Parameters:
certId - the updated certificate block identifier
retVec - the vector storage object in which the above certificate block identifier should be registered
Returns:
value true, on success
o printSelf 
 public void printSelf()
Method used for debugging reasons

o checkVmfContents 
 public void checkVmfContents(Hashtable files,
                              Download dm,
                              RandomAccessFile out)
Checks the contents of the current VMF with the local stored files

Parameters:
files - the local stored file data
dm - a reference to the download module
o getFileList 
 public Vector getFileList(String certid)

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