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Simplified TileImageLoader and TileSource, added ImageTileSource, fixed FileDbCache

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This commit is contained in:
ClemensF 2012-07-20 21:57:29 +02:00
parent 300c22a2e7
commit 2fd3f5f8f6
12 changed files with 280 additions and 195 deletions
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90
Caching/FileDbCache/FileDbCache.cs
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@ -77,13 +77,12 @@ namespace Caching
try
{
fileDb.Open(path, false);
Trace.TraceInformation("FileDbCache: Opened database with {0} cached items in {1}", fileDb.NumRecords, path);
}
catch
{
CreateDatebase();
CreateDatabase();
}
Trace.TraceInformation("FileDbCache: Opened database with {0} cached items in {1}", fileDb.NumRecords, path);
}
public bool AutoFlush
@ -139,19 +138,14 @@ namespace Caching
{
count = fileDb.NumRecords;
}
catch (Exception ex1)
catch (Exception ex)
{
Trace.TraceWarning("FileDbCache: FileDb.NumRecords failed: {0}", ex1.Message);
Trace.TraceWarning("FileDbCache: FileDb.NumRecords failed: {0}", ex.Message);
try
if (RepairDatabase())
{
fileDb.Reindex();
count = fileDb.NumRecords;
}
catch (Exception ex2)
{
Trace.TraceWarning("FileDbCache: FileDb.Reindex() failed: {0}", ex2.Message);
}
}
}
@ -168,19 +162,14 @@ namespace Caching
{
record = fileDb.GetRecordByKey(key, new string[] { valueField }, false);
}
catch (Exception ex1)
catch (Exception ex)
{
Trace.TraceWarning("FileDbCache: FileDb.GetRecordByKey(\"{0}\") failed: {1}", key, ex1.Message);
Trace.TraceWarning("FileDbCache: FileDb.GetRecordByKey(\"{0}\") failed: {1}", key, ex.Message);
try
if (RepairDatabase())
{
fileDb.Reindex();
record = fileDb.GetRecordByKey(key, new string[] { valueField }, false);
}
catch (Exception ex2)
{
Trace.TraceWarning("FileDbCache: FileDb.Reindex() failed: {0}", ex2.Message);
}
}
}
@ -228,7 +217,7 @@ namespace Caching
}
catch (Exception ex1)
{
Trace.TraceWarning("FileDbCache: Failed deserializing item \"{0}\": {1}", key, ex1.Message);
Trace.TraceWarning("FileDbCache: Deserializing item \"{0}\" failed: {1}", key, ex1.Message);
try
{
@ -298,7 +287,7 @@ namespace Caching
}
catch (Exception ex)
{
Trace.TraceWarning("FileDbCache: Failed serializing item \"{0}\": {1}", key, ex.Message);
Trace.TraceWarning("FileDbCache: Serializing item \"{0}\" failed: {1}", key, ex.Message);
}
if (valueBuffer != null)
@ -318,19 +307,12 @@ namespace Caching
{
AddOrUpdateRecord(key, valueBuffer, expires);
}
catch (Exception ex1)
catch (Exception ex)
{
Trace.TraceWarning("FileDbCache: FileDb.UpdateRecordByKey(\"{0}\") failed: {1}", key, ex1.Message);
Trace.TraceWarning("FileDbCache: FileDb.UpdateRecordByKey(\"{0}\") failed: {1}", key, ex.Message);
try
if (RepairDatabase())
{
fileDb.Reindex();
AddOrUpdateRecord(key, valueBuffer, expires);
}
catch (Exception ex2)
{
Trace.TraceWarning("FileDbCache: FileDb.Reindex() failed: {0}, creating new database", ex2.Message);
CreateDatebase();
AddOrUpdateRecord(key, valueBuffer, expires);
}
}
@ -422,30 +404,62 @@ namespace Caching
}
catch
{
fileDb.Reindex();
}
fileDb.Close();
}
}
private void CreateDatebase()
private bool RepairDatabase()
{
if (File.Exists(path))
try
{
File.Delete(path);
fileDb.Reindex();
}
else
catch (Exception ex)
{
Directory.CreateDirectory(Path.GetDirectoryName(path));
Trace.TraceWarning("FileDbCache: FileDb.Reindex() failed: {0}", ex.Message);
return CreateDatabase();
}
fileDb.Create(path, new Field[]
return true;
}
private bool CreateDatabase()
{
if (fileDb.IsOpen)
{
fileDb.Close();
}
try
{
if (File.Exists(path))
{
File.Delete(path);
}
else
{
Directory.CreateDirectory(Path.GetDirectoryName(path));
}
fileDb.Create(path,
new Field[]
{
new Field(keyField, DataTypeEnum.String) { IsPrimaryKey = true },
new Field(valueField, DataTypeEnum.Byte) { IsArray = true },
new Field(expiresField, DataTypeEnum.DateTime)
});
Trace.TraceInformation("FileDbCache: Created database {0}", path);
}
catch (Exception ex)
{
Trace.TraceWarning("FileDbCache: Creating database failed: {0}", ex.Message);
return false;
}
return true;
}
private void AddOrUpdateRecord(string key, object value, DateTime expires)