public long Commit()
{
var ts = new List <Task>();
var trieBuilder = new TrieBuilder();
using (var documentsToAnalyze = new BlockingCollection <Document>())
{
ts.Add(Task.Run(() =>
{
Log.Info("serializing documents");
var count = 0;
var docFileName = Path.Combine(_directory, _indexVersionId + ".rdoc");
var docAddressFn = Path.Combine(_directory, _indexVersionId + ".da");
var readTimer = new Stopwatch();
readTimer.Start();
using (var docAddressWriter = new DocumentAddressWriter(new FileStream(docAddressFn, FileMode.Create, FileAccess.Write)))
using (var docWriter = new DocumentWriter(new FileStream(docFileName, FileMode.Create, FileAccess.Write), _compression))
{
foreach (var doc in ReadSourceAndAssignIdentifiers())
{
documentsToAnalyze.Add(doc);
var adr = docWriter.Write(doc);
docAddressWriter.Write(adr);
count++;
}
}
documentsToAnalyze.CompleteAdding();
Log.InfoFormat("serialized {0} documents in {1}", count, readTimer.Elapsed);
}));
ts.Add(Task.Run(() =>
{
var analyzeTimer = new Stopwatch();
analyzeTimer.Start();
Log.Info("analyzing");
var count = 0;
try
{
while (true)
{
var doc = documentsToAnalyze.Take();
var analyzed = _analyzer.AnalyzeDocument(doc);
foreach (var term in analyzed.Words.GroupBy(t => t.Term.Field))
{
trieBuilder.Add(term.Key, term.Select(t =>
{
var field = t.Term.Field;
var token = t.Term.Word.Value;
var posting = t.Posting;
return(new WordInfo(field, token, posting));
}).ToList());
}
count++;
}
}
catch (InvalidOperationException)
{
// Done
trieBuilder.CompleteAdding();
}
Log.InfoFormat("analyzed {0} documents in {1}", count, analyzeTimer.Elapsed);
}));
Task.WaitAll(ts.ToArray());
}
var tries = trieBuilder.GetTries();
var tasks = new List <Task>
{
Task.Run(() =>
{
var postingsTimer = new Stopwatch();
postingsTimer.Start();
Log.Info("serializing postings");
var posFileName = Path.Combine(_directory, string.Format("{0}.{1}", _indexVersionId, "pos"));
using (var postingsWriter = new PostingsWriter(new FileStream(posFileName, FileMode.Create, FileAccess.Write, FileShare.None)))
{
foreach (var trie in tries)
{
foreach (var node in trie.Value.EndOfWordNodes())
{
node.PostingsAddress = postingsWriter.Write(node.Postings);
}
if (Log.IsDebugEnabled)
{
foreach (var word in trie.Value.Words())
{
Log.Debug(word);
}
}
}
}
Log.InfoFormat("serialized postings in {0}", postingsTimer.Elapsed);
}),
Task.Run(() =>
{
var trieTimer = new Stopwatch();
trieTimer.Start();
Log.Info("serializing tries");
SerializeTries(tries);
Log.InfoFormat("serialized tries in {0}", trieTimer.Elapsed);
}),
Task.Run(() =>
{
var docHasTimer = new Stopwatch();
docHasTimer.Start();
Log.Info("serializing doc hashes");
var docHashesFileName = Path.Combine(_directory, string.Format("{0}.{1}", _indexVersionId, "pk"));
_primaryKeys.Keys.Select(h => new DocHash(h)).Serialize(docHashesFileName);
Log.InfoFormat("serialized doc hashes in {0}", docHasTimer.Elapsed);
})
};
Task.WaitAll(tasks.ToArray());
CreateIxInfo().Serialize(Path.Combine(_directory, _indexVersionId + ".ix"));
if (_compression > 0)
{
Log.Info("compression: true");
}
else
{
Log.Info("compression: false");
}
return(_indexVersionId);
}
public long Commit()
{
var docAddresses = new List <BlockInfo>();
var pks = new Dictionary <UInt64, object>();
var ts = new List <Task>();
using (var words = new BlockingCollection <WordInfo>())
using (var documents = new BlockingCollection <Document>())
{
ts.Add(Task.Run(() =>
{
var trieTimer = new Stopwatch();
trieTimer.Start();
try
{
while (true)
{
var word = words.Take();
GetTrie(word.Field)
.Add(word.Token, word.Posting);
}
}
catch (InvalidOperationException)
{
// Done
}
Log.InfoFormat("Built tries in {0}", trieTimer.Elapsed);
}));
ts.Add(Task.Run(() =>
{
var analyzeTimer = new Stopwatch();
analyzeTimer.Start();
try
{
while (true)
{
var doc = documents.Take();
var analyzed = _analyzer.AnalyzeDocument(doc);
foreach (var term in analyzed.Words)
{
var field = term.Term.Field;
var token = term.Term.Word.Value;
var posting = term.Posting;
words.Add(new WordInfo(field, token, posting));
}
}
}
catch (InvalidOperationException)
{
// Done
words.CompleteAdding();
}
Log.InfoFormat("Analyzed {0} documents in {1}", pks.Count, analyzeTimer.Elapsed);
}));
ts.Add(Task.Run(() =>
{
var docWriterTimer = new Stopwatch();
docWriterTimer.Start();
var docFileName = Path.Combine(_directory, _indexVersionId + ".doc");
using (var docWriter = new DocumentWriter(
new FileStream(docFileName, FileMode.Create, FileAccess.Write, FileShare.None), _compression))
{
foreach (var doc in ReadSource())
{
string pkVal;
if (_autoGeneratePk)
{
pkVal = Guid.NewGuid().ToString();
}
else
{
pkVal = doc.Fields.First(f => f.Key == _primaryKey).Value;
}
var hash = pkVal.ToHash();
if (pks.ContainsKey(hash))
{
Log.WarnFormat("Found multiple occurrences of documents with pk value of {0} (id:{1}). Only first occurrence will be stored.",
pkVal, _docId);
}
else
{
pks.Add(hash, null);
doc.Id = _docId++;
documents.Add(doc);
var adr = docWriter.Write(doc);
docAddresses.Add(adr);
}
}
}
documents.CompleteAdding();
Log.InfoFormat("Serialized {0} documents in {1}", pks.Count, docWriterTimer.Elapsed);
}));
Task.WaitAll(ts.ToArray());
}
if (pks.Count == 0)
{
Log.Info("Aborted write (source is empty).");
return(0);
}
var tasks = new List <Task>
{
Task.Run(() =>
{
var postingsTimer = new Stopwatch();
postingsTimer.Start();
var posFileName = Path.Combine(_directory, string.Format("{0}.{1}", _indexVersionId, "pos"));
using (var postingsWriter = new PostingsWriter(new FileStream(posFileName, FileMode.Create, FileAccess.Write, FileShare.None)))
{
foreach (var trie in _tries)
{
foreach (var node in trie.Value.EndOfWordNodes())
{
node.PostingsAddress = postingsWriter.Write(node.Postings);
}
if (Log.IsDebugEnabled)
{
foreach (var word in trie.Value.Words())
{
Log.Debug(word);
}
}
}
}
Log.InfoFormat("Serialized postings in {0}", postingsTimer.Elapsed);
var trieTimer = new Stopwatch();
trieTimer.Start();
SerializeTries();
Log.InfoFormat("Serialized tries in {0}", trieTimer.Elapsed);
}),
Task.Run(() =>
{
var docAdrTimer = new Stopwatch();
docAdrTimer.Start();
using (var docAddressWriter = new DocumentAddressWriter(new FileStream(Path.Combine(_directory, _indexVersionId + ".da"), FileMode.Create, FileAccess.Write, FileShare.None)))
{
foreach (var address in docAddresses)
{
docAddressWriter.Write(address);
}
}
Log.InfoFormat("Serialized doc addresses in {0}", docAdrTimer.Elapsed);
}),
Task.Run(() =>
{
var docHasTimer = new Stopwatch();
docHasTimer.Start();
var docHashesFileName = Path.Combine(_directory, string.Format("{0}.{1}", _indexVersionId, "pk"));
pks.Keys.Select(h => new DocHash(h)).Serialize(docHashesFileName);
Log.InfoFormat("Serialized doc hashes in {0}", docHasTimer.Elapsed);
})
};
Task.WaitAll(tasks.ToArray());
CreateIxInfo().Serialize(Path.Combine(_directory, _indexVersionId + ".ix"));
if (_compression > 0)
{
Log.Info("compression: true");
}
return(_indexVersionId);
}
public long Commit()
{
var trieBuilder = new TrieBuilder();
var docAddresses = new List <BlockInfo>();
var analyzed = _analyzer.AnalyzeDocument(_document);
foreach (var term in analyzed.Words.GroupBy(t => t.Term.Field))
{
trieBuilder.Add(term.Key, term.Select(t =>
{
var field = t.Term.Field;
var token = t.Term.Word.Value;
var posting = t.Posting;
return(new WordInfo(field, token, posting));
}).ToList());
}
trieBuilder.CompleteAdding();
var indexVersionId = Util.GetChronologicalFileId();
var docFileName = Path.Combine(_directory, indexVersionId + ".rdoc");
var docAddressesFn = Path.Combine(_directory, indexVersionId + ".da");
BlockInfo adr;
using (var docWriter = new DocumentWriter(
new FileStream(docFileName, FileMode.Create, FileAccess.Write, FileShare.None, 4096, true), _compression))
{
adr = docWriter.Write(_document);
}
using (var docAddressWriter = new DocumentAddressWriter(
new FileStream(docAddressesFn, FileMode.Create, FileAccess.Write, FileShare.None)))
{
docAddressWriter.Write(adr);
}
var tries = trieBuilder.GetTries();
var tasks = new List <Task>
{
Task.Run(() =>
{
var posFileName = Path.Combine(_directory, string.Format("{0}.{1}", indexVersionId, "pos"));
using (var postingsWriter = new PostingsWriter(new FileStream(posFileName, FileMode.Create, FileAccess.Write, FileShare.None)))
{
foreach (var trie in tries)
{
foreach (var node in trie.Value.EndOfWordNodes())
{
node.PostingsAddress = postingsWriter.Write(node.Postings);
}
if (Log.IsDebugEnabled)
{
foreach (var word in trie.Value.Words())
{
Log.Debug(word);
}
}
}
}
}),
Task.Run(() =>
{
SerializeTries(tries, indexVersionId);
}),
Task.Run(() =>
{
var docHashesFileName = Path.Combine(_directory, string.Format("{0}.{1}", indexVersionId, "pk"));
new DocHash[] { new DocHash(_primaryKeyHash) }.Serialize(docHashesFileName);
})
};
Task.WaitAll(tasks.ToArray());
new IxInfo
{
VersionId = indexVersionId,
DocumentCount = 1,
Compression = _compression
}.Serialize(Path.Combine(_directory, indexVersionId + ".ix"));
if (_compression > 0)
{
Log.Info("compression: true");
}
else
{
Log.Info("compression: false");
}
return(indexVersionId);
}
