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Add the ability to write out trees vs full graphs.

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This commit is contained in:
Marc Hernandez 2019-07-11 15:01:55 -07:00
parent 0e98d66d06
commit 4d9181e6ad
1 changed files with 89 additions and 17 deletions
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106
XmlFormatter2.cs
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@ -21,14 +21,30 @@ namespace lib
void OnDeserialize( object enclosing );
}
public enum Datastructure
{
Invalid,
Tree,
Full,
}
public class XmlFormatter2Cfg : Config
{
public readonly Datastructure datastructure = Datastructure.Full;
}
public class XmlFormatter2 : IFormatter
{
public StreamingContext Context { get; set; }
static private Random s_rnd = new Random();
private int m_rndVal = s_rnd.Next();
static Random s_rnd = new Random();
int m_rndVal = s_rnd.Next();
XmlFormatter2Cfg m_cfg = new XmlFormatter2Cfg();
#region Unimplimented
public ISurrogateSelector SurrogateSelector
{
@ -41,7 +57,11 @@ public class XmlFormatter2 : IFormatter
get { throw new NotImplementedException(); }
set { throw new NotImplementedException(); }
}
#endregion
#endregion
public XmlFormatter2()
@ -51,8 +71,18 @@ public class XmlFormatter2 : IFormatter
#region Deserialize
private static FormatterConverter s_conv = new FormatterConverter();
public XmlFormatter2( XmlFormatter2Cfg cfg )
{
Context = new StreamingContext( StreamingContextStates.All );
m_cfg = cfg;
}
#region Deserialize
private static FormatterConverter s_conv = new FormatterConverter();
public object Deserialize( Stream stream )
{
@ -416,19 +446,44 @@ public class XmlFormatter2 : IFormatter
{
TypeCode tc = Type.GetTypeCode( type );
if( refInt > 0 && m_alreadySerialized.ContainsKey( refInt ) )
if( m_cfg.datastructure == Datastructure.Full && refInt > 0 && m_alreadySerialized.ContainsKey( refInt ) )
{
//lib.log.info( "Reusing object for {0}", refInt );
return m_alreadySerialized[ refInt ];
}
else
{
//lib.log.info( "Creating new object for {0}", refInt );
object obj = Activator.CreateInstance( type );
object obj = null;
if( refInt > 0 )
try
{
m_alreadySerialized[ refInt ] = obj;
//Trying the nice way to creat objects first.
obj = Activator.CreateInstance( type );
}
catch( Exception ex )
{
try
{
obj = System.Runtime.Serialization.FormatterServices.GetUninitializedObject( type );
}
catch( Exception exInner )
{
lib.Log.error( $"Got exception {exInner.Message} trying to make an uninitialized object" );
}
}
if( obj == null )
{
lib.Log.warn( $"Could not create object of type {type.Name}" );
return obj;
}
if( m_cfg.datastructure == Datastructure.Full && refInt > 0 )
{
m_alreadySerialized[refInt] = obj;
}
return obj;
@ -446,7 +501,7 @@ public class XmlFormatter2 : IFormatter
{
TypeCode elemTC = Type.GetTypeCode( elemType );
if( refInt > 0 && m_alreadySerialized.ContainsKey( refInt ) )
if( m_cfg.datastructure == Datastructure.Full && refInt > 0 && m_alreadySerialized.ContainsKey( refInt ) )
{
return (Array)m_alreadySerialized[ refInt ];
}
@ -454,7 +509,11 @@ public class XmlFormatter2 : IFormatter
{
Array arr = Array.CreateInstance( elemType, length ) ;
m_alreadySerialized[ refInt ] = arr;
if( m_cfg.datastructure == Datastructure.Full )
{
m_alreadySerialized[ refInt ] = arr;
}
return arr;
}
@ -566,11 +625,18 @@ public class XmlFormatter2 : IFormatter
long refInt = m_objectID.GetId( root, out first );
writer.WriteAttributeString( "ref", refInt.ToString() );
if( m_cfg.datastructure == Datastructure.Full )
{
writer.WriteAttributeString( "ref", refInt.ToString() );
}
if( first )
{
m_alreadySerialized[ refInt ] = root;
if( m_cfg.datastructure == Datastructure.Full )
{
m_alreadySerialized[ refInt ] = root;
}
Type type = root.GetType();
@ -641,11 +707,17 @@ public class XmlFormatter2 : IFormatter
long refInt = m_objectID.GetId( root, out first );
writer.WriteAttributeString( "ref", refInt.ToString() );
if( m_cfg.datastructure == Datastructure.Full )
{
writer.WriteAttributeString( "ref", refInt.ToString() );
}
if( first )
{
m_alreadySerialized[ refInt ] = root;
if( m_cfg.datastructure == Datastructure.Full )
{
m_alreadySerialized[ refInt ] = root;
}
for( int i = 0; i < arr.Length; ++i )