public virtual EnsureSchemaStatus TryEnsureSchema(Type type, bool force, out Exception ex, ILogger logger = null)
{
EnsureSchemaStatus result = EnsureSchemaStatus.Invalid;
ex = null;
try
{
string schemaName = Dao.RealConnectionName(type);
if (!SchemaNames.Contains(schemaName) || force)
{
_schemaNames.Add(schemaName);
SchemaWriter schema = ServiceProvider.Get <SchemaWriter>();
schema.WriteSchemaScript(type);
ExecuteSql(schema, ServiceProvider.Get <IParameterBuilder>());
result = EnsureSchemaStatus.Success;
}
else
{
result = EnsureSchemaStatus.AlreadyDone;
}
}
catch (Exception e)
{
ex = e;
result = EnsureSchemaStatus.Error;
logger = logger ?? Log.Default;
logger.AddEntry("Non fatal error occurred trying to write schema for type {0}: {1}", LogEventType.Warning, ex, type.Name, ex.Message);
}
return(result);
}
/// <summary>
/// Recursively search the given schema for named schemas and adds them to the given container
/// </summary>
/// <param name="schema">schema object to search</param>
/// <param name="names">list of named schemas</param>
protected virtual void addName(Schema schema, SchemaNames names)
{
NamedSchema ns = schema as NamedSchema;
if (null != ns)
{
if (names.Contains(ns.SchemaName))
{
return;
}
}
switch (schema.Tag)
{
case Schema.Type.Null:
case Schema.Type.Boolean:
case Schema.Type.Int:
case Schema.Type.Long:
case Schema.Type.Float:
case Schema.Type.Double:
case Schema.Type.Bytes:
case Schema.Type.String:
break;
case Schema.Type.Enumeration:
case Schema.Type.Fixed:
names.Add(ns);
break;
case Schema.Type.Record:
case Schema.Type.Error:
var rs = schema as RecordSchema;
names.Add(rs);
foreach (Field field in rs.Fields)
{
addName(field.Schema, names);
}
break;
case Schema.Type.Array:
var asc = schema as ArraySchema;
addName(asc.ItemSchema, names);
break;
case Schema.Type.Map:
var ms = schema as MapSchema;
addName(ms.ValueSchema, names);
break;
case Schema.Type.Union:
var us = schema as UnionSchema;
foreach (Schema usc in us.Schemas)
{
addName(usc, names);
}
break;
default:
throw new CodeGenException("Unable to add name for " + schema.Name + " type " + schema.Tag);
}
}