/// <summary>
/// <para>
/// Initializes a new <see cref="FileStorage"/> instance.
/// </para>
/// <para></para>
/// </summary>
/// <param name="DBFilename">
/// <para>A db filename.</para>
/// <para></para>
/// </param>
public FileStorage(string DBFilename)
{
var linksConstants = new LinksConstants <TLinkAddress>(enableExternalReferencesSupport: true);
var dataMemory = new FileMappedResizableDirectMemory(DBFilename);
_disposableLinks = new UnitedMemoryLinks <TLinkAddress>(dataMemory, UnitedMemoryLinks <UInt64> .DefaultLinksSizeStep, linksConstants, IndexTreeType.Default);
_synchronizedLinks = new SynchronizedLinks <TLinkAddress>(_disposableLinks);
var link = _synchronizedLinks.Create();
link = _synchronizedLinks.Update(link, newSource: link, newTarget: link);
ushort currentMappingLinkIndex = 1;
Any = _synchronizedLinks.Constants.Any;
_meaningRoot = GetOrCreateMeaningRoot(currentMappingLinkIndex++);
_unicodeSymbolMarker = GetOrCreateNextMapping(currentMappingLinkIndex++);
_unicodeSequenceMarker = GetOrCreateNextMapping(currentMappingLinkIndex++);
_setMarker = GetOrCreateNextMapping(currentMappingLinkIndex++);
_fileMarker = GetOrCreateNextMapping(currentMappingLinkIndex++);
_addressToNumberConverter = new AddressToRawNumberConverter <TLinkAddress>();
_numberToAddressConverter = new RawNumberToAddressConverter <TLinkAddress>();
var balancedVariantConverter = new BalancedVariantConverter <TLinkAddress>(_synchronizedLinks);
var unicodeSymbolCriterionMatcher = new TargetMatcher <TLinkAddress>(_synchronizedLinks, _unicodeSymbolMarker);
var unicodeSequenceCriterionMatcher = new TargetMatcher <TLinkAddress>(_synchronizedLinks, _unicodeSequenceMarker);
var charToUnicodeSymbolConverter = new CharToUnicodeSymbolConverter <TLinkAddress>(_synchronizedLinks, _addressToNumberConverter, _unicodeSymbolMarker);
var unicodeSymbolToCharConverter = new UnicodeSymbolToCharConverter <TLinkAddress>(_synchronizedLinks, _numberToAddressConverter, unicodeSymbolCriterionMatcher);
var sequenceWalker = new RightSequenceWalker <TLinkAddress>(_synchronizedLinks, new DefaultStack <TLinkAddress>(), unicodeSymbolCriterionMatcher.IsMatched);
_stringToUnicodeSequenceConverter = new CachingConverterDecorator <string, TLinkAddress>(new StringToUnicodeSequenceConverter <TLinkAddress>(_synchronizedLinks, charToUnicodeSymbolConverter, balancedVariantConverter, _unicodeSequenceMarker));
_unicodeSequenceToStringConverter = new CachingConverterDecorator <TLinkAddress, string>(new UnicodeSequenceToStringConverter <TLinkAddress>(_synchronizedLinks, unicodeSequenceCriterionMatcher, sequenceWalker, unicodeSymbolToCharConverter));
}
private static void TestCharAndUnicodeSymbolConverters(ILinks <ulong> links, ulong meaningRoot, IConverter <ulong> addressToNumberConverter, IConverter <ulong> numberToAddressConverter)
{
var unicodeSymbolMarker = links.CreateAndUpdate(meaningRoot, links.Constants.Itself);
var charToUnicodeSymbolConverter = new CharToUnicodeSymbolConverter <ulong>(links, addressToNumberConverter, unicodeSymbolMarker);
var originalCharacter = 'H';
var characterLink = charToUnicodeSymbolConverter.Convert(originalCharacter);
var unicodeSymbolCriterionMatcher = new TargetMatcher <ulong>(links, unicodeSymbolMarker);
var unicodeSymbolToCharConverter = new UnicodeSymbolToCharConverter <ulong>(links, numberToAddressConverter, unicodeSymbolCriterionMatcher);
var resultingCharacter = unicodeSymbolToCharConverter.Convert(characterLink);
Assert.Equal(originalCharacter, resultingCharacter);
}
public static void StringAndUnicodeSequenceConvertersTest()
{
using (var scope = new TempLinksTestScope())
{
var links = scope.Links;
var itself = links.Constants.Itself;
var meaningRoot = links.CreatePoint();
var unaryOne = links.CreateAndUpdate(meaningRoot, itself);
var unicodeSymbolMarker = links.CreateAndUpdate(meaningRoot, itself);
var unicodeSequenceMarker = links.CreateAndUpdate(meaningRoot, itself);
var frequencyMarker = links.CreateAndUpdate(meaningRoot, itself);
var frequencyPropertyMarker = links.CreateAndUpdate(meaningRoot, itself);
var powerOf2ToUnaryNumberConverter = new PowerOf2ToUnaryNumberConverter <ulong>(links, unaryOne);
var addressToUnaryNumberConverter = new AddressToUnaryNumberConverter <ulong>(links, powerOf2ToUnaryNumberConverter);
var charToUnicodeSymbolConverter = new CharToUnicodeSymbolConverter <ulong>(links, addressToUnaryNumberConverter, unicodeSymbolMarker);
var unaryNumberToAddressConverter = new UnaryNumberToAddressOrOperationConverter <ulong>(links, powerOf2ToUnaryNumberConverter);
var unaryNumberIncrementer = new UnaryNumberIncrementer <ulong>(links, unaryOne);
var frequencyIncrementer = new FrequencyIncrementer <ulong>(links, frequencyMarker, unaryOne, unaryNumberIncrementer);
var frequencyPropertyOperator = new PropertyOperator <ulong>(links, frequencyPropertyMarker, frequencyMarker);
var index = new FrequencyIncrementingSequenceIndex <ulong>(links, frequencyPropertyOperator, frequencyIncrementer);
var linkToItsFrequencyNumberConverter = new LinkToItsFrequencyNumberConveter <ulong>(links, frequencyPropertyOperator, unaryNumberToAddressConverter);
var sequenceToItsLocalElementLevelsConverter = new SequenceToItsLocalElementLevelsConverter <ulong>(links, linkToItsFrequencyNumberConverter);
var optimalVariantConverter = new OptimalVariantConverter <ulong>(links, sequenceToItsLocalElementLevelsConverter);
var stringToUnicodeSequenceConverter = new StringToUnicodeSequenceConverter <ulong>(links, charToUnicodeSymbolConverter, index, optimalVariantConverter, unicodeSequenceMarker);
var originalString = "Hello";
var unicodeSequenceLink = stringToUnicodeSequenceConverter.Convert(originalString);
var unicodeSymbolCriterionMatcher = new TargetMatcher <ulong>(links, unicodeSymbolMarker);
var unicodeSymbolToCharConverter = new UnicodeSymbolToCharConverter <ulong>(links, unaryNumberToAddressConverter, unicodeSymbolCriterionMatcher);
var unicodeSequenceCriterionMatcher = new TargetMatcher <ulong>(links, unicodeSequenceMarker);
var sequenceWalker = new LeveledSequenceWalker <ulong>(links, unicodeSymbolCriterionMatcher.IsMatched);
var unicodeSequenceToStringConverter = new UnicodeSequenceToStringConverter <ulong>(links, unicodeSequenceCriterionMatcher, sequenceWalker, unicodeSymbolToCharConverter);
var resultingString = unicodeSequenceToStringConverter.Convert(unicodeSequenceLink);
Assert.Equal(originalString, resultingString);
}
}
public DoubletsDbContext(string dataDBFilename, string indexDBFilename)
{
var dataMemory = new FileMappedResizableDirectMemory(dataDBFilename);
var indexMemory = new FileMappedResizableDirectMemory(indexDBFilename);
var linksConstants = new LinksConstants <TLinkAddress>(enableExternalReferencesSupport: true);
// Init the links storage
_disposableLinks = new UInt32SplitMemoryLinks(dataMemory, indexMemory, UInt32SplitMemoryLinks.DefaultLinksSizeStep, linksConstants); // Low-level logic
_links = new UInt32Links(_disposableLinks); // Main logic in the combined decorator
// Set up constant links (markers, aka mapped links)
TLinkAddress currentMappingLinkIndex = 1;
_meaningRoot = GetOrCreateMeaningRoot(currentMappingLinkIndex++);
_unicodeSymbolMarker = GetOrCreateNextMapping(currentMappingLinkIndex++);
_unicodeSequenceMarker = GetOrCreateNextMapping(currentMappingLinkIndex++);
_titlePropertyMarker = GetOrCreateNextMapping(currentMappingLinkIndex++);
_contentPropertyMarker = GetOrCreateNextMapping(currentMappingLinkIndex++);
_publicationDateTimePropertyMarker = GetOrCreateNextMapping(currentMappingLinkIndex++);
_blogPostMarker = GetOrCreateNextMapping(currentMappingLinkIndex++);
// Create properties operator that is able to control reading and writing properties for any link (object)
_defaultLinkPropertyOperator = new PropertiesOperator <TLinkAddress>(_links);
// Create converters that are able to convert link's address (UInt64 value) to a raw number represented with another UInt64 value and back
_numberToAddressConverter = new RawNumberToAddressConverter <TLinkAddress>();
_addressToNumberConverter = new AddressToRawNumberConverter <TLinkAddress>();
// Create converters for dates
_longRawNumberToDateTimeConverter = new LongRawNumberSequenceToDateTimeConverter <TLinkAddress>(new LongRawNumberSequenceToNumberConverter <TLinkAddress, long>(_links, _numberToAddressConverter));
_dateTimeToLongRawNumberConverter = new DateTimeToLongRawNumberSequenceConverter <TLinkAddress>(new NumberToLongRawNumberSequenceConverter <long, TLinkAddress>(_links, _addressToNumberConverter));
// Create converters that are able to convert string to unicode sequence stored as link and back
var balancedVariantConverter = new BalancedVariantConverter <TLinkAddress>(_links);
var unicodeSymbolCriterionMatcher = new TargetMatcher <TLinkAddress>(_links, _unicodeSymbolMarker);
var unicodeSequenceCriterionMatcher = new TargetMatcher <TLinkAddress>(_links, _unicodeSequenceMarker);
var charToUnicodeSymbolConverter = new CharToUnicodeSymbolConverter <TLinkAddress>(_links, _addressToNumberConverter, _unicodeSymbolMarker);
var unicodeSymbolToCharConverter = new UnicodeSymbolToCharConverter <TLinkAddress>(_links, _numberToAddressConverter, unicodeSymbolCriterionMatcher);
var sequenceWalker = new RightSequenceWalker <TLinkAddress>(_links, new DefaultStack <TLinkAddress>(), unicodeSymbolCriterionMatcher.IsMatched);
_stringToUnicodeSequenceConverter = new CachingConverterDecorator <string, TLinkAddress>(new StringToUnicodeSequenceConverter <TLinkAddress>(_links, charToUnicodeSymbolConverter, balancedVariantConverter, _unicodeSequenceMarker));
_unicodeSequenceToStringConverter = new CachingConverterDecorator <TLinkAddress, string>(new UnicodeSequenceToStringConverter <TLinkAddress>(_links, unicodeSequenceCriterionMatcher, sequenceWalker, unicodeSymbolToCharConverter));
}
public PlatformDataBase(string indexFileName, string dataFileName)
{
this.indexFileName = indexFileName;
this.dataFileName = dataFileName;
var dataMemory = new FileMappedResizableDirectMemory(this.dataFileName);
var indexMemory = new FileMappedResizableDirectMemory(this.indexFileName);
var linksConstants = new LinksConstants <TLinkAddress>(enableExternalReferencesSupport: true);
// Init the links storage
this._disposableLinks = new UInt32SplitMemoryLinks(dataMemory, indexMemory, UInt32SplitMemoryLinks.DefaultLinksSizeStep, linksConstants); // Low-level logic
this.links = new UInt32Links(_disposableLinks); // Main logic in the combined decorator
// Set up constant links (markers, aka mapped links)
TLinkAddress currentMappingLinkIndex = 1;
this._meaningRoot = GerOrCreateMeaningRoot(currentMappingLinkIndex++);
this._unicodeSymbolMarker = GetOrCreateNextMapping(currentMappingLinkIndex++);
this._unicodeSequenceMarker = GetOrCreateNextMapping(currentMappingLinkIndex++);
this._bookMarker = GetOrCreateNextMapping(currentMappingLinkIndex++);
// Create converters that are able to convert link's address (UInt64 value) to a raw number represented with another UInt64 value and back
this._numberToAddressConverter = new RawNumberToAddressConverter <TLinkAddress>();
this._addressToNumberConverter = new AddressToRawNumberConverter <TLinkAddress>();
// Create converters that are able to convert string to unicode sequence stored as link and back
var balancedVariantConverter = new BalancedVariantConverter <TLinkAddress>(links);
var unicodeSymbolCriterionMatcher = new TargetMatcher <TLinkAddress>(links, _unicodeSymbolMarker);
var unicodeSequenceCriterionMatcher = new TargetMatcher <TLinkAddress>(links, _unicodeSequenceMarker);
var charToUnicodeSymbolConverter = new CharToUnicodeSymbolConverter <TLinkAddress>(links, _addressToNumberConverter, _unicodeSymbolMarker);
var unicodeSymbolToCharConverter = new UnicodeSymbolToCharConverter <TLinkAddress>(links, _numberToAddressConverter, unicodeSymbolCriterionMatcher);
var sequenceWalker = new RightSequenceWalker <TLinkAddress>(links, new DefaultStack <TLinkAddress>(), unicodeSymbolCriterionMatcher.IsMatched);
this._stringToUnicodeSequenceConverter = new CachingConverterDecorator <string, TLinkAddress>(new StringToUnicodeSequenceConverter <TLinkAddress>(links, charToUnicodeSymbolConverter, balancedVariantConverter, _unicodeSequenceMarker));
this._unicodeSequenceToStringConverter = new CachingConverterDecorator <TLinkAddress, string>(new UnicodeSequenceToStringConverter <TLinkAddress>(links, unicodeSequenceCriterionMatcher, sequenceWalker, unicodeSymbolToCharConverter));
}