Java Code Examples for com.sleepycat.bind.tuple.StringBinding#entryToString()

private List<String> loadVersions()
{
    final List<String> versions = new ArrayList<>();
    CursorOperation configuredObjectsCursor = new CursorOperation()
    {
        @Override
        public void processEntry(Database sourceDatabase, Database targetDatabase, Transaction transaction,
                                 DatabaseEntry key, DatabaseEntry value)
        {
            String version = StringBinding.entryToString(key);
            versions.add(version);
        }
    };
    new DatabaseTemplate(_environment, PREFERENCES_VERSION_DB_NAME, null).run(configuredObjectsCursor);
    return versions;
}
 

/**
 * Returns the id of the vector which was assigned the given internal id or null if the internal id does
 * not exist. Accesses the BDB store!
 * 
 * @param iid
 *            The internal id of the vector
 * @return The id mapped to the given internal id or null if the internal id does not exist
 */
public String getId(int iid) {
	if (iid < 0 || iid > loadCounter) {
		System.out.println("Internal id " + iid + " is out of range!");
		return null;
	}
	DatabaseEntry key = new DatabaseEntry();
	IntegerBinding.intToEntry(iid, key);
	DatabaseEntry data = new DatabaseEntry();
	if ((iidToIdDB.get(null, key, data, null) == OperationStatus.SUCCESS)) {
		return StringBinding.entryToString(data);
	} else {
		System.out.println("Internal id " + iid + " is in range but id was not found..");
		System.out.println("Index is probably corrupted");
		System.exit(0);
		return null;
	}
}
 

private ModelVersion getStoredVersion() throws RuntimeException
{
    try(Cursor cursor = getLinksVersionDb().openCursor(null, null))
    {
        DatabaseEntry key = new DatabaseEntry();
        DatabaseEntry value = new DatabaseEntry();

        ModelVersion storedVersion = null;
        while (cursor.getNext(key, value, LockMode.READ_UNCOMMITTED) == OperationStatus.SUCCESS)
        {
            String versionString = StringBinding.entryToString(key);
            ModelVersion version = ModelVersion.fromString(versionString);
            if (storedVersion == null || storedVersion.lessThan(version))
            {
                storedVersion = version;
            }
        }
        if (storedVersion == null)
        {
            throw new StoreException("No link version information.");
        }
        return storedVersion;
    }
    catch (RuntimeException e)
    {
        throw getEnvironmentFacade().handleDatabaseException("Cannot visit link version", e);
    }
}
 

ModelVersion getStoredVersion()
{
    try(Cursor cursor = getPreferencesVersionDb().openCursor(null, null))
    {
        DatabaseEntry key = new DatabaseEntry();
        DatabaseEntry value = new DatabaseEntry();

        ModelVersion storedVersion = null;
        while (cursor.getNext(key, value, LockMode.READ_UNCOMMITTED) == OperationStatus.SUCCESS)
        {
            String versionString = StringBinding.entryToString(key);
            ModelVersion version = ModelVersion.fromString(versionString);
            if (storedVersion == null || storedVersion.lessThan(version))
            {
                storedVersion = version;
            }
        }
        if (storedVersion == null)
        {
            throw new StoreException("No preference version information.");
        }
        return storedVersion;
    }
    catch (RuntimeException e)
    {
        throw getEnvironmentFacade().handleDatabaseException("Cannot visit preference version", e);
    }
}
 

/**
 * This is a utility method that can be used to dump the contents of the iidToIdDB to a txt file.
 * 
 * @param dumpFilename
 *            Full path to the file where the dump will be written.
 * @throws Exception
 */
public void dumpiidToIdDB(String dumpFilename) throws Exception {
	DatabaseEntry foundKey = new DatabaseEntry();
	DatabaseEntry foundData = new DatabaseEntry();

	ForwardCursor cursor = iidToIdDB.openCursor(null, null);
	BufferedWriter out = new BufferedWriter(new FileWriter(new File(dumpFilename)));
	while (cursor.getNext(foundKey, foundData, LockMode.DEFAULT) == OperationStatus.SUCCESS) {
		int iid = IntegerBinding.entryToInt(foundKey);
		String id = StringBinding.entryToString(foundData);
		out.write(iid + " " + id + "\n");
	}
	cursor.close();
	out.close();
}
 

/**
 * This is a utility method that can be used to dump the contents of the idToIidDB to a txt file.
 * 
 * @param dumpFilename
 *            Full path to the file where the dump will be written.
 * @throws Exception
 */
public void dumpidToIidDB(String dumpFilename) throws Exception {
	DatabaseEntry foundKey = new DatabaseEntry();
	DatabaseEntry foundData = new DatabaseEntry();

	ForwardCursor cursor = idToIidDB.openCursor(null, null);
	BufferedWriter out = new BufferedWriter(new FileWriter(new File(dumpFilename)));
	while (cursor.getNext(foundKey, foundData, LockMode.DEFAULT) == OperationStatus.SUCCESS) {
		int iid = IntegerBinding.entryToInt(foundData);
		String id = StringBinding.entryToString(foundKey);
		out.write(id + " " + iid + "\n");
	}
	cursor.close();
	out.close();
}