[Test] //see bxc #59334
public void ExceptionWrapping()
{
AssemblyBuilder ab = AppDomain.CurrentDomain.DefineDynamicAssembly(new AssemblyName("ehatevfheiw"), AssemblyBuilderAccess.Run);
AssemblyBuilder ab2 = AppDomain.CurrentDomain.DefineDynamicAssembly(new AssemblyName("ddf4234"), AssemblyBuilderAccess.Run);
CustomAttributeBuilder cab = new CustomAttributeBuilder(
typeof(RuntimeCompatibilityAttribute).GetConstructor(new Type [0]),
new object [0],
new PropertyInfo[] { typeof(RuntimeCompatibilityAttribute).GetProperty("WrapNonExceptionThrows") },
new object[] { true });
ab2.SetCustomAttribute(cab);
AssemblyBuilder ab3 = AppDomain.CurrentDomain.DefineDynamicAssembly(new AssemblyName("frfhfher"), AssemblyBuilderAccess.Run);
//1 NamedArg. Property name: WrapNonExceptionThrows value: true (0x01)
byte[] blob = new byte[] { 0x01, 0x00, 0x01, 0x00, 0x54, 0x02, 0x16, 0x57, 0x72, 0x61, 0x70, 0x4E, 0x6F, 0x6E, 0x45, 0x78,
0x63, 0x65, 0x70, 0x74, 0x69, 0x6F, 0x6E, 0x54, 0x68, 0x72, 0x6F, 0x77, 0x73, 0x01 };
ab3.SetCustomAttribute(typeof(RuntimeCompatibilityAttribute).GetConstructor(new Type [0]), blob);
DynamicMethod invoke_no_module = new DynamicMethod("throw_1", typeof(int), new Type [0]);
DynamicMethod invoke_with_module = new DynamicMethod("throw_2", typeof(int), new Type [0], typeof(DynamicMethodTest).Module);
DynamicMethod invoke_with_ab = new DynamicMethod("throw_3", typeof(int), new Type [0], ab.ManifestModule);
DynamicMethod invoke_with_ab2 = new DynamicMethod("throw_4", typeof(int), new Type [0], ab2.ManifestModule);
DynamicMethod invoke_with_ab3 = new DynamicMethod("throw_5", typeof(int), new Type [0], ab3.ManifestModule);
int result = 0;
try {
int res = EmitDelegate(invoke_no_module)();
Assert.AreEqual(3, res, "invoke_no_module bad return value");
} catch (RuntimeWrappedException e) {
Assert.Fail("invoke_no_module threw RWE");
}
try {
int res = EmitDelegate(invoke_with_module)();
Assert.Fail("invoke_with_module did not throw RWE");
} catch (RuntimeWrappedException e) {
}
try {
int res = EmitDelegate(invoke_with_ab)();
Assert.AreEqual(3, res, "invoke_with_ab bad return value");
} catch (RuntimeWrappedException e) {
Assert.Fail("invoke_with_ab threw RWE");
}
try {
int res = EmitDelegate(invoke_with_ab2)();
Assert.Fail("invoke_with_ab2 did not throw RWE");
} catch (RuntimeWrappedException e) {
}
try {
int res = EmitDelegate(invoke_with_ab3)();
Assert.Fail("invoke_with_a3 did not throw RWE");
} catch (RuntimeWrappedException e) {
}
}
public void TestJsMapFunction()
{
var c = new JSViewCompiler();
var mapBlock = c.CompileMap("function(doc){emit(doc.key, doc);}", "javascript");
Assert.IsNotNull(mapBlock);
var doc = new Dictionary <string, object> {
{ "_id", "doc1" },
{ "_rev", @"1-xyzzy" },
{ "key", "value" }
};
var emitted = new List <object>();
EmitDelegate emit = (key, value) =>
{
Console.WriteLine("Emitted: {0} -> {1}", key, value);
emitted.Add(key);
emitted.Add(value);
};
mapBlock(doc, emit);
CollectionAssert.AreEqual(new List <object> {
"value", doc
}, emitted);
}
public MapDelegate CompileMap(string source, string language)
{
if (!language.Equals("javascript"))
{
return(null);
}
EmitDelegate rtEmit = null;
EmitDelegate wrapEmit = (key, value) =>
{
rtEmit(key, value);
};
source = source.Replace("function", "function _f1");
var engine = new Engine();
engine.SetValue("log", new LogDelegate((msg) =>
{
// TODO: handle log
}));
engine.SetValue("emit", wrapEmit);
engine.Execute(source);
return((doc, emit) =>
{
rtEmit = emit;
string tempSource = "_f1(" + JsonConvert.SerializeObject(doc) + ");";
engine.Execute(tempSource);
});
}
public void CreateConstructorDelegate_Should_Throw_InvalidOperationException_If_No_Constructor_Matching_Parameters_Can_Be_Found()
{
// Arrange
Type[] parameters = new Type[] { typeof(String) };
// Act/Assert
Assert.Throws <InvalidOperationException>(() => EmitDelegate.CreateConstructor <Int32ConstructorDelegate>());
}
private void Map(IDictionary <string, object> doc, EmitDelegate emit)
{
var mapFunction = (Func <QueryRow, bool>)_where.Compile();
var selectFunction = _select.Compile();
var fakeRow = new QueryRow(doc.CblID(), doc.GetCast <long>("_local_seq"), null, null, new RevisionInternal(doc), null);
if (mapFunction(fakeRow))
{
emit(selectFunction.DynamicInvoke(fakeRow), null);
}
}
public void CreateConstructorDelegate_Should_Return_Functioning_Delegate()
{
// Arrange
Type[] parameters = new Type[] { typeof(object) };
object parameter1 = new object();
TestConstructorDelegate constructor = EmitDelegate.CreateConstructor <TestConstructorDelegate>();
// Act
EmitDelegateTestClass instance = constructor(parameter1);
// Assert
Assert.True(ReferenceEquals(parameter1, instance.TestReference));
}
private void EmitLiquid(int cell)
{
int cell1 = Grid.CellBelow(cell);
EmitDelegate emit = !Grid.IsValidCell(cell1) || Grid.Solid[cell1] ? emit_element : emit_particle;
foreach (GameObject gameObject in storage.items)
{
PrimaryElement component = gameObject.GetComponent <PrimaryElement>();
if (component.Element.IsLiquid && EmitCommon(cell, component, emit))
{
break;
}
}
}
private bool EmitCommon(int cell, PrimaryElement primary_element, EmitDelegate emit)
{
if (primary_element.Mass <= 0.0)
{
return(false);
}
int disease_to_item1;
int disease_to_item2;
CalculateDiseaseTransfer(exhaustPE, primary_element, 0.05f, out disease_to_item1, out disease_to_item2);
primary_element.ModifyDiseaseCount(-disease_to_item1, "Exhaust transfer");
primary_element.AddDisease(exhaustPE.DiseaseIdx, disease_to_item2, "Exhaust transfer");
exhaustPE.ModifyDiseaseCount(-disease_to_item2, "Exhaust transfer");
exhaustPE.AddDisease(primary_element.DiseaseIdx, disease_to_item1, "Exhaust transfer");
emit(cell, primary_element);
primary_element.KeepZeroMassObject = true;
primary_element.Mass = 0.0f;
primary_element.ModifyDiseaseCount(int.MinValue, "Exhaust.SimUpdate");
return(true);
}
private bool EmitCommon(int cell, PrimaryElement primary_element, EmitDelegate emit)
{
if (primary_element.Mass <= 0f)
{
return(false);
}
CalculateDiseaseTransfer(exhaustPE, primary_element, 0.05f, out int disease_to_item, out int disease_to_item2);
primary_element.ModifyDiseaseCount(-disease_to_item, "Exhaust transfer");
primary_element.AddDisease(exhaustPE.DiseaseIdx, disease_to_item2, "Exhaust transfer");
exhaustPE.ModifyDiseaseCount(-disease_to_item2, "Exhaust transfer");
exhaustPE.AddDisease(primary_element.DiseaseIdx, disease_to_item, "Exhaust transfer");
emit(cell, primary_element);
if ((Object)vent != (Object)null)
{
vent.UpdateVentedMass(primary_element.ElementID, primary_element.Mass);
}
primary_element.KeepZeroMassObject = true;
primary_element.Mass = 0f;
primary_element.ModifyDiseaseCount(-2147483648, "Exhaust.SimUpdate");
recentlyExhausted = true;
return(true);
}
public void TestJsLogFunction()
{
// This case will test that calling log() function doesn't cause any errors running the JS map
// map function.
var c = new JSViewCompiler();
var mapBlock = c.CompileMap("function(doc){log('Log Message'); emit(doc.key, doc);}", "javascript");
Assert.IsNotNull(mapBlock);
var doc = new Dictionary <string, object> {
{ "_id", "doc1" },
{ "_rev", @"1-xyzzy" },
{ "key", "value" }
};
var emitted = new List <object>();
EmitDelegate emit = (key, value) => emitted.Add(value);
mapBlock(doc, emit);
CollectionAssert.AreEqual(new List <object> {
doc
}, emitted);
}
public bool UpdateIndexes(IEnumerable <IViewStore> inputViews)
{
Log.D(TAG, "Checking indexes of ({0}) for {1}", ViewNames(inputViews.Cast <SqliteViewStore>()), Name);
var db = _dbStorage;
var status = false;
status = db.RunInTransaction(() =>
{
// If the view the update is for doesn't need any update, don't do anything:
long dbMaxSequence = db.LastSequence;
long forViewLastSequence = LastSequenceIndexed;
if (forViewLastSequence >= dbMaxSequence)
{
return(true);
}
// Check whether we need to update at all,
// and remove obsolete emitted results from the 'maps' table:
long minLastSequence = dbMaxSequence;
long[] viewLastSequence = new long[inputViews.Count()];
int deletedCount = 0;
int i = 0;
HashSet <string> docTypes = new HashSet <string>();
IDictionary <string, string> viewDocTypes = null;
bool allDocTypes = false;
IDictionary <int, int> viewTotalRows = new Dictionary <int, int>();
List <SqliteViewStore> views = new List <SqliteViewStore>(inputViews.Count());
List <MapDelegate> mapBlocks = new List <MapDelegate>();
foreach (var view in inputViews.Cast <SqliteViewStore>())
{
var viewDelegate = view.Delegate;
var mapBlock = viewDelegate == null ? null : viewDelegate.Map;
if (mapBlock == null)
{
Debug.Assert(view != this, String.Format("Cannot index view {0}: no map block registered", view.Name));
Log.V(TAG, " {0} has no map block; skipping it", view.Name);
continue;
}
views.Add(view);
mapBlocks.Add(mapBlock);
int viewId = view.ViewID;
Debug.Assert(viewId > 0, String.Format("View '{0}' not found in database", view.Name));
int totalRows = view.TotalRows;
viewTotalRows[viewId] = totalRows;
long last = view == this ? forViewLastSequence : view.LastSequenceIndexed;
viewLastSequence[i++] = last;
if (last < 0)
{
throw new CouchbaseLiteException(StatusCode.DbError);
}
if (last < dbMaxSequence)
{
if (last == 0)
{
CreateIndex();
}
minLastSequence = Math.Min(minLastSequence, last);
Log.V(TAG, " {0} last indexed at #{1}", view.Name, last);
string docType = viewDelegate.DocumentType;
if (docType != null)
{
docTypes.Add(docType);
if (viewDocTypes == null)
{
viewDocTypes = new Dictionary <string, string>();
}
viewDocTypes[view.Name] = docType;
}
else
{
// can't filter by doc_type
allDocTypes = true;
}
bool ok = true;
int changes = 0;
if (last == 0)
{
try {
// If the lastSequence has been reset to 0, make sure to remove all map results:
changes = db.StorageEngine.ExecSQL(view.QueryString("DELETE FROM 'maps_#'"));
} catch (Exception) {
ok = false;
}
}
else
{
db.OptimizeSQLIndexes(); // ensures query will use the right indexes
// Delete all obsolete map results (ones from since-replaced revisions):
try {
changes = db.StorageEngine.ExecSQL(view.QueryString("DELETE FROM 'maps_#' WHERE sequence IN (" +
"SELECT parent FROM revs WHERE sequence>?" +
"AND +parent>0 AND +parent<=?)"), last, last);
} catch (Exception) {
ok = false;
}
}
if (!ok)
{
throw new CouchbaseLiteException(StatusCode.DbError);
}
// Update #deleted rows
deletedCount += changes;
// Only count these deletes as changes if this isn't a view reset to 0
if (last != 0)
{
viewTotalRows[viewId] -= changes;
}
}
}
if (minLastSequence == dbMaxSequence)
{
return(true);
}
Log.D(TAG, "Updating indexes of ({0}) from #{1} to #{2} ...",
ViewNames(views), minLastSequence, dbMaxSequence);
// This is the emit() block, which gets called from within the user-defined map() block
// that's called down below.
SqliteViewStore currentView = null;
IDictionary <string, object> currentDoc = null;
long sequence = minLastSequence;
Status emitStatus = new Status(StatusCode.Ok);
int insertedCount = 0;
EmitDelegate emit = (key, value) =>
{
StatusCode s = currentView.Emit(key, value, value == currentDoc, sequence);
if (s != StatusCode.Ok)
{
emitStatus.Code = s;
}
else
{
viewTotalRows[currentView.ViewID] += 1;
insertedCount++;
}
};
// Now scan every revision added since the last time the views were indexed:
bool checkDocTypes = docTypes.Count > 1 || (allDocTypes && docTypes.Count > 0);
var sql = new StringBuilder("SELECT revs.doc_id, sequence, docid, revid, json, deleted ");
if (checkDocTypes)
{
sql.Append(", doc_type ");
}
sql.Append("FROM revs, docs WHERE sequence>? AND sequence <=? AND current!=0 ");
if (minLastSequence == 0)
{
sql.Append("AND deleted=0 ");
}
if (!allDocTypes && docTypes.Count > 0)
{
sql.AppendFormat("AND doc_type IN ({0}) ", Database.JoinQuoted(docTypes));
}
sql.Append("AND revs.doc_id = docs.doc_id " +
"ORDER BY revs.doc_id, deleted, revid DESC");
Cursor c = null;
Cursor c2 = null;
try {
c = db.StorageEngine.IntransactionRawQuery(sql.ToString(), minLastSequence, dbMaxSequence);
bool keepGoing = c.MoveToNext();
while (keepGoing)
{
// Get row values now, before the code below advances 'c':
long doc_id = c.GetLong(0);
sequence = c.GetLong(1);
string docId = c.GetString(2);
if (docId.StartsWith("_design/")) // design documents don't get indexed
{
keepGoing = c.MoveToNext();
continue;
}
string revId = c.GetString(3);
var json = c.GetBlob(4);
bool deleted = c.GetInt(5) != 0;
string docType = checkDocTypes ? c.GetString(6) : null;
// Skip rows with the same doc_id -- these are losing conflicts.
var conflicts = default(List <string>);
while ((keepGoing = c.MoveToNext()) && c.GetLong(0) == doc_id)
{
if (conflicts == null)
{
conflicts = new List <string>();
}
conflicts.Add(c.GetString(3));
}
long realSequence = sequence; // because sequence may be changed, below
if (minLastSequence > 0)
{
// Find conflicts with documents from previous indexings.
using (c2 = db.StorageEngine.IntransactionRawQuery("SELECT revid, sequence FROM revs " +
"WHERE doc_id=? AND sequence<=? AND current!=0 AND deleted=0 " +
"ORDER BY revID DESC ", doc_id, minLastSequence)) {
if (c2.MoveToNext())
{
string oldRevId = c2.GetString(0);
// This is the revision that used to be the 'winner'.
// Remove its emitted rows:
long oldSequence = c2.GetLong(1);
foreach (var view in views)
{
int changes = db.StorageEngine.ExecSQL(QueryString("DELETE FROM 'maps_#' WHERE sequence=?"), oldSequence);
deletedCount += changes;
viewTotalRows[view.ViewID] -= changes;
}
if (deleted || RevisionInternal.CBLCompareRevIDs(oldRevId, revId) > 0)
{
// It still 'wins' the conflict, so it's the one that
// should be mapped [again], not the current revision!
revId = oldRevId;
deleted = false;
sequence = oldSequence;
json = db.QueryOrDefault <byte[]>(x => x.GetBlob(0), true, null, "SELECT json FROM revs WHERE sequence=?", sequence);
}
if (!deleted)
{
// Conflict revisions:
if (conflicts == null)
{
conflicts = new List <string>();
}
conflicts.Add(oldRevId);
while (c2.MoveToNext())
{
conflicts.Add(c2.GetString(0));
}
}
}
}
}
if (deleted)
{
continue;
}
// Get the document properties, to pass to the map function:
currentDoc = db.GetDocumentProperties(json, docId, revId, deleted, sequence);
if (currentDoc == null)
{
Log.W(TAG, "Failed to parse JSON of doc {0} rev {1}", docId, revId);
continue;
}
currentDoc["_local_seq"] = sequence;
if (conflicts != null)
{
currentDoc["_conflicts"] = conflicts;
}
// Call the user-defined map() to emit new key/value pairs from this revision:
int viewIndex = -1;
var e = views.GetEnumerator();
while (e.MoveNext())
{
currentView = e.Current;
++viewIndex;
if (viewLastSequence[viewIndex] < realSequence)
{
if (checkDocTypes)
{
var viewDocType = viewDocTypes[currentView.Name];
if (viewDocType != null && viewDocType != docType)
{
// skip; view's documentType doesn't match this doc
continue;
}
}
Log.V(TAG, " #{0}: map \"{1}\" for view {2}...",
sequence, docId, e.Current.Name);
try {
mapBlocks[viewIndex](currentDoc, emit);
} catch (Exception x) {
Log.E(TAG, String.Format("Exception in map() block for view {0}", currentView.Name), x);
emitStatus.Code = StatusCode.Exception;
}
if (emitStatus.IsError)
{
c.Dispose();
return(false);
}
}
}
currentView = null;
}
} catch (CouchbaseLiteException) {
Log.W(TAG, "Failed to update index for {0}", currentView.Name);
throw;
} catch (Exception e) {
throw new CouchbaseLiteException(String.Format("Error updating index for {0}", currentView.Name),
e)
{
Code = StatusCode.Exception
};
} finally {
if (c != null)
{
c.Dispose();
}
}
// Finally, record the last revision sequence number that was indexed and update #rows:
foreach (var view in views)
{
view.FinishCreatingIndex();
int newTotalRows = viewTotalRows[view.ViewID];
Debug.Assert(newTotalRows >= 0);
var args = new ContentValues();
args["lastSequence"] = dbMaxSequence;
args["total_docs"] = newTotalRows;
try {
db.StorageEngine.Update("views", args, "view_id=?", view.ViewID.ToString());
} catch (CouchbaseLiteException) {
Log.W(TAG, "Failed to update view {0}", view.Name);
throw;
} catch (Exception e) {
throw new CouchbaseLiteException(String.Format("Error updating view {0}", view.Name),
e)
{
Code = StatusCode.Exception
};
}
}
Log.D(TAG, "...Finished re-indexing ({0}) to #{1} (deleted {2}, added {3})",
ViewNames(views), dbMaxSequence, deletedCount, insertedCount);
return(true);
});
if (!status)
{
Log.W(TAG, "CouchbaseLite: Failed to rebuild views ({0}): {1}", ViewNames(inputViews.Cast <SqliteViewStore>()), status);
}
return(status);
}
internal void UpdateIndex()
{
Log.I(Database.Tag, "Re-indexing view {0} ...", Name);
System.Diagnostics.Debug.Assert((Map != null));
if (Id <= 0)
{
var msg = string.Format("View.Id <= 0");
throw new CouchbaseLiteException(msg, new Status(StatusCode.NotFound));
}
var result = new Status(StatusCode.InternalServerError);
Cursor cursor = null;
Cursor cursor2 = null;
try
{
Database.RunInTransaction(() =>
{
var lastSequence = LastSequenceIndexed;
var dbMaxSequence = Database.LastSequenceNumber;
if (lastSequence >= dbMaxSequence)
{
// nothing to do (eg, kCBLStatusNotModified)
Log.V(Database.Tag, "lastSequence ({0}) == dbMaxSequence ({1}), nothing to do", lastSequence, dbMaxSequence);
result.SetCode(StatusCode.NotModified);
return(false);
}
// First remove obsolete emitted results from the 'maps' table:
var sequence = lastSequence;
if (lastSequence < 0)
{
var msg = string.Format("lastSequence < 0 ({0})", lastSequence);
throw new CouchbaseLiteException(msg, new Status(StatusCode.InternalServerError));
}
if (lastSequence == 0)
{
// If the lastSequence has been reset to 0, make sure to remove
// any leftover rows:
var whereArgs = new string[] { Id.ToString() };
Database.StorageEngine.Delete("maps", "view_id=?", whereArgs);
}
else
{
Database.OptimizeSQLIndexes();
// Delete all obsolete map results (ones from since-replaced
// revisions):
var args = new [] {
Id.ToString(),
lastSequence.ToString(),
lastSequence.ToString()
};
Database.StorageEngine.ExecSQL(
"DELETE FROM maps WHERE view_id=? AND sequence IN ("
+ "SELECT parent FROM revs WHERE sequence>? " + "AND +parent>0 AND +parent<=?)",
args);
}
var deleted = 0;
cursor = Database.StorageEngine.IntransactionRawQuery("SELECT changes()");
cursor.MoveToNext();
deleted = cursor.GetInt(0);
cursor.Close();
// Find a better way to propagate this back
// Now scan every revision added since the last time the view was indexed:
var selectArgs = new[] { lastSequence.ToString(), dbMaxSequence.ToString() };
cursor = Database.StorageEngine.IntransactionRawQuery("SELECT revs.doc_id, sequence, docid, revid, json, no_attachments FROM revs, docs "
+ "WHERE sequence>? AND sequence<=? AND current!=0 AND deleted=0 "
+ "AND revs.doc_id = docs.doc_id "
+ "ORDER BY revs.doc_id, revid DESC", selectArgs);
var lastDocID = 0L;
var keepGoing = cursor.MoveToNext();
while (keepGoing)
{
long docID = cursor.GetLong(0);
if (docID != lastDocID)
{
// Only look at the first-iterated revision of any document,
// because this is the
// one with the highest revid, hence the "winning" revision
// of a conflict.
lastDocID = docID;
// Reconstitute the document as a dictionary:
sequence = cursor.GetLong(1);
string docId = cursor.GetString(2);
if (docId.StartsWith("_design/", StringComparison.InvariantCultureIgnoreCase))
{
// design docs don't get indexed!
keepGoing = cursor.MoveToNext();
continue;
}
var revId = cursor.GetString(3);
var json = cursor.GetBlob(4);
var noAttachments = cursor.GetInt(5) > 0;
// Skip rows with the same doc_id -- these are losing conflicts.
while ((keepGoing = cursor.MoveToNext()) && cursor.GetLong(0) == docID)
{
}
if (lastSequence > 0)
{
// Find conflicts with documents from previous indexings.
var selectArgs2 = new[] { Convert.ToString(docID), Convert.ToString(lastSequence) };
cursor2 = Database.StorageEngine.IntransactionRawQuery("SELECT revid, sequence FROM revs "
+ "WHERE doc_id=? AND sequence<=? AND current!=0 AND deleted=0 " + "ORDER BY revID DESC "
+ "LIMIT 1", selectArgs2);
if (cursor2.MoveToNext())
{
var oldRevId = cursor2.GetString(0);
// This is the revision that used to be the 'winner'.
// Remove its emitted rows:
var oldSequence = cursor2.GetLong(1);
var args = new[] { Sharpen.Extensions.ToString(Id), Convert.ToString(oldSequence) };
Database.StorageEngine.ExecSQL("DELETE FROM maps WHERE view_id=? AND sequence=?", args);
if (RevisionInternal.CBLCompareRevIDs(oldRevId, revId) > 0)
{
// It still 'wins' the conflict, so it's the one that
// should be mapped [again], not the current revision!
revId = oldRevId;
sequence = oldSequence;
var selectArgs3 = new[] { Convert.ToString(sequence) };
json = Misc.ByteArrayResultForQuery(
Database.StorageEngine,
"SELECT json FROM revs WHERE sequence=?",
selectArgs3
);
}
}
cursor2.Close();
cursor2 = null;
}
// Get the document properties, to pass to the map function:
var contentOptions = DocumentContentOptions.None;
if (noAttachments)
{
contentOptions |= DocumentContentOptions.NoAttachments;
}
var properties = Database.DocumentPropertiesFromJSON(
json, docId, revId, false, sequence, DocumentContentOptions.None
);
if (properties != null)
{
// Call the user-defined map() to emit new key/value
// pairs from this revision:
// This is the emit() block, which gets called from within the
// user-defined map() block
// that's called down below.
var enclosingView = this;
var thisSequence = sequence;
var map = Map;
if (map == null)
{
throw new CouchbaseLiteException("Map function is missing.");
}
EmitDelegate emitBlock = (key, value) =>
{
// TODO: Do we need to do any null checks on key or value?
try
{
var keyJson = Manager.GetObjectMapper().WriteValueAsString(key);
var valueJson = value == null ? null : Manager.GetObjectMapper().WriteValueAsString(value);
var insertValues = new ContentValues();
insertValues.Put("view_id", enclosingView.Id);
insertValues["sequence"] = thisSequence;
insertValues["key"] = keyJson;
insertValues["value"] = valueJson;
enclosingView.Database.StorageEngine.Insert("maps", null, insertValues);
}
catch (Exception e)
{
Log.E(Database.Tag, "Error emitting", e);
}
};
map(properties, emitBlock);
}
}
else
{
keepGoing = cursor.MoveToNext();
}
}
// Finally, record the last revision sequence number that was
// indexed:
var updateValues = new ContentValues();
updateValues["lastSequence"] = dbMaxSequence;
var whereArgs_1 = new string[] { Id.ToString() };
Database.StorageEngine.Update("views", updateValues, "view_id=?", whereArgs_1);
// FIXME actually count number added :)
Log.V(Database.Tag, "...Finished re-indexing view {0} up to sequence {1} (deleted {2} added ?)", Name, Convert.ToString(dbMaxSequence), deleted);
result.SetCode(StatusCode.Ok);
return(true);
});
}
catch (Exception e)
{
throw new CouchbaseLiteException(e, new Status(StatusCode.DbError));
}
finally
{
if (cursor2 != null)
{
cursor2.Close();
}
if (cursor != null)
{
cursor.Close();
}
if (!result.IsSuccessful)
{
Log.W(Database.Tag, "Failed to rebuild view {0}:{1}", Name, result.GetCode());
}
}
}
public LanguageToolChain(string language, EmitDelegate compile)
{
Language = language;
EmitDelegate = compile;
}
public DMDAction(String name, EmitDelegate emitter) : base(name, emitter)
{
}
internal void UpdateIndex()
{
Log.V(Database.Tag, "Re-indexing view " + Name + " ...");
System.Diagnostics.Debug.Assert((Map != null));
if (Id < 0)
{
var msg = string.Format("View.Id < 0");
throw new CouchbaseLiteException(msg, new Status(StatusCode.NotFound));
}
Database.BeginTransaction();
var result = new Status(StatusCode.InternalServerError);
Cursor cursor = null;
try
{
var lastSequence = LastSequenceIndexed;
var dbMaxSequence = Database.LastSequenceNumber;
if (lastSequence == dbMaxSequence)
{
// nothing to do (eg, kCBLStatusNotModified)
var msg = String.Format("lastSequence ({0}) == dbMaxSequence ({1}), nothing to do", lastSequence, dbMaxSequence);
Log.D(Database.Tag, msg);
result.SetCode(StatusCode.Ok);
return;
}
// First remove obsolete emitted results from the 'maps' table:
var sequence = lastSequence;
if (lastSequence < 0)
{
var msg = string.Format("lastSequence < 0 ({0})", lastSequence);
throw new CouchbaseLiteException(msg, new Status(StatusCode.InternalServerError));
}
if (lastSequence == 0)
{
// If the lastSequence has been reset to 0, make sure to remove
// any leftover rows:
var whereArgs = new string[] { Sharpen.Extensions.ToString(Id) };
Database.StorageEngine.Delete("maps", "view_id=@", whereArgs);
}
else
{
// Delete all obsolete map results (ones from since-replaced
// revisions):
var args = new [] {
Id.ToString(),
lastSequence.ToString(),
lastSequence.ToString()
};
Database.StorageEngine.ExecSQL(
"DELETE FROM maps WHERE view_id=@ AND sequence IN ("
+ "SELECT parent FROM revs WHERE sequence>@ " + "AND parent>0 AND parent<=@)",
args);
}
var deleted = 0;
cursor = Database.StorageEngine.RawQuery("SELECT changes()", null); // TODO: Convert to ADO params.
cursor.MoveToNext();
deleted = cursor.GetInt(0);
cursor.Close();
// find a better way to propagate this back
// Now scan every revision added since the last time the view was
// indexed:
var selectArgs = new[] { Convert.ToString(lastSequence) };
cursor = Database.StorageEngine.RawQuery("SELECT revs.doc_id, sequence, docid, revid, json FROM revs, docs "
+ "WHERE sequence>@ AND current!=0 AND deleted=0 " + "AND revs.doc_id = docs.doc_id "
+ "ORDER BY revs.doc_id, revid DESC", CommandBehavior.SequentialAccess, selectArgs);
cursor.MoveToNext();
var lastDocID = 0L;
while (!cursor.IsAfterLast())
{
long docID = cursor.GetLong(0);
if (docID != lastDocID)
{
// Only look at the first-iterated revision of any document,
// because this is the
// one with the highest revid, hence the "winning" revision
// of a conflict.
lastDocID = docID;
// Reconstitute the document as a dictionary:
sequence = cursor.GetLong(1);
string docId = cursor.GetString(2);
if (docId.StartsWith("_design/", StringComparison.InvariantCultureIgnoreCase))
{
// design docs don't get indexed!
cursor.MoveToNext();
continue;
}
var revId = cursor.GetString(3);
var json = cursor.GetBlob(4);
var properties = Database.DocumentPropertiesFromJSON(
json, docId, revId, false, sequence, EnumSet.NoneOf <TDContentOptions>()
);
if (properties != null)
{
// Call the user-defined map() to emit new key/value
// pairs from this revision:
Log.V(Database.Tag, " call map for sequence=" + System.Convert.ToString(sequence
));
// This is the emit() block, which gets called from within the
// user-defined map() block
// that's called down below.
var enclosingView = this;
var thisSequence = sequence;
var map = Map;
if (map == null)
{
throw new CouchbaseLiteException("Map function is missing.");
}
EmitDelegate emitBlock = (key, value) =>
{
// TODO: Do we need to do any null checks on key or value?
try
{
var keyJson = Manager.GetObjectMapper().WriteValueAsString(key);
var valueJson = value == null ? null : Manager.GetObjectMapper().WriteValueAsString(value);
Log.V(Database.Tag, String.Format(" emit({0}, {1})", keyJson, valueJson));
var insertValues = new ContentValues();
insertValues.Put("view_id", enclosingView.Id);
insertValues["sequence"] = thisSequence;
insertValues["key"] = keyJson;
insertValues["value"] = valueJson;
enclosingView.Database.StorageEngine.Insert("maps", null, insertValues);
}
catch (Exception e)
{
Log.E(Database.Tag, "Error emitting", e);
}
};
map(properties, emitBlock);
}
}
cursor.MoveToNext();
}
// Finally, record the last revision sequence number that was
// indexed:
ContentValues updateValues = new ContentValues();
updateValues["lastSequence"] = dbMaxSequence;
var whereArgs_1 = new string[] { Sharpen.Extensions.ToString(Id) };
Database.StorageEngine.Update("views", updateValues, "view_id=@", whereArgs_1);
// FIXME actually count number added :)
Log.V(Database.Tag, "...Finished re-indexing view " + Name + " up to sequence " +
System.Convert.ToString(dbMaxSequence) + " (deleted " + deleted + " added " + "?" + ")");
result.SetCode(StatusCode.Ok);
}
catch (SQLException e)
{
throw new CouchbaseLiteException(e, new Status(StatusCode.DbError));
}
finally
{
if (cursor != null)
{
cursor.Close();
}
if (!result.IsSuccessful())
{
Log.W(Database.Tag, "Failed to rebuild view " + Name + ": " + result.GetCode());
}
if (Database != null)
{
Database.EndTransaction(result.IsSuccessful());
}
}
}
