/**
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://www.dspace.org/license/
*/
package org.dspace.app.itemupdate;
import java.text.ParseException;
import java.util.regex.*;
import org.dspace.core.Constants;
/**
* Holds the elements of a line in the Contents Entry file
*
* Based on private methods in ItemImport
*
* Lacking a spec or full documentation for the file format,
* it looks from the source code that the ordering or elements is not fixed
*
* e.g.:
* {@code
* 48217870-MIT.pdf\tbundle: bundlename\tpermissions: -r 'MIT Users'\tdescription: Full printable version (MIT only)
* permissions: -[r|w] ['group name']
* description: <the description of the file>
* }
*
*
*/
public class ContentsEntry
{
public static final String HDR_BUNDLE = "bundle:";
public static final String HDR_PERMISSIONS = "permissions:";
public static final String HDR_DESCRIPTION = "description:";
public static final Pattern permissionsPattern = Pattern.compile("-([rw])\\s*'?([^']+)'?");
final String filename;
final String bundlename;
final String permissionsGroupName;
final int permissionsActionId;
final String description;
protected ContentsEntry(String filename,
String bundlename,
int permissionsActionId,
String permissionsGroupName,
String description)
{
this.filename = filename;
this.bundlename = bundlename;
this.permissionsActionId = permissionsActionId;
this.permissionsGroupName = permissionsGroupName;
this.description = description;
}
/**
* Factory method parses a line from the Contents Entry file
*
* @param line line as string
* @return the parsed ContentsEntry object
* @throws ParseException if parse error
*/
public static ContentsEntry parse(String line)
throws ParseException
{
String[] ar = line.split("\t");
ItemUpdate.pr("ce line split: " + ar.length);
String[] arp = new String[4];
arp[0] = ar[0]; //bitstream name doesn't have header and is always first
String groupName = null;
int actionId = -1;
if (ar.length > 1)
{
for (int i=1; i < ar.length; i++)
{
ItemUpdate.pr("ce " + i + " : " + ar[i]);
if (ar[i].startsWith(HDR_BUNDLE))
{
arp[1] = ar[i].substring(HDR_BUNDLE.length()).trim();
}
else if (ar[i].startsWith(HDR_PERMISSIONS))
{
arp[2] = ar[i].substring(HDR_PERMISSIONS.length()).trim();
// parse into actionId and group name
Matcher m = permissionsPattern.matcher(arp[2]);
if (m.matches())
{
String action = m.group(1); //
if (action.equals("r"))
{
actionId = Constants.READ;
}
else if (action.equals("w"))
{
actionId = Constants.WRITE;
}
groupName = m.group(2).trim();
}
}
else if (ar[i].startsWith(HDR_DESCRIPTION))
{
arp[3] = ar[i].substring(HDR_DESCRIPTION.length()).trim();
}
else
{
throw new ParseException("Unknown text in contents file: " + ar[i], 0);
}
}
}
return new ContentsEntry(arp[0], arp[1], actionId, groupName, arp[3]);
}
public String toString()
{
StringBuilder sb = new StringBuilder(filename);
if (bundlename != null)
{
sb.append(HDR_BUNDLE).append(" ").append(bundlename);
}
if (permissionsGroupName != null)
{
sb.append(HDR_PERMISSIONS);
if (permissionsActionId == Constants.READ)
{
sb.append(" -r ");
}
else if (permissionsActionId == Constants.WRITE)
{
sb.append(" -w ");
}
sb.append(permissionsGroupName);
}
if (description != null)
{
sb.append(HDR_DESCRIPTION).append(" ").append(description);
}
return sb.toString();
}
}