public static bool WriteToXml(object inputDataset, string xmlFilePath)
{
try
{
// Check if file exists
if (File.Exists(xmlFilePath))
{
Console.WriteLine("File already exists.");
return(false);
}
// Create new file.
IFile xmlFile = new FileStreamClass();
xmlFile.Open(xmlFilePath, esriFilePermission.esriReadWrite);
// See if the input dataset can be Xml serialized.
IXMLSerialize mySerializeData = (IXMLSerialize)inputDataset;
// Create new XmlWriter object.
IXMLWriter myXmlWriter = new XMLWriterClass();
myXmlWriter.WriteTo((IStream)xmlFile);
myXmlWriter.WriteXMLDeclaration();
IXMLSerializer myXmlSerializer = new XMLSerializerClass();
// Write to XML File
myXmlSerializer.WriteObject(myXmlWriter, null, null, null, null, mySerializeData);
Console.WriteLine("Success.");
return(true);
}
catch (Exception exc)
{
Console.WriteLine("Exception caught in WriteToXml: " + exc.Message);
Console.WriteLine("Failed.");
return(false);
}
}
unsafe public static object Load(System.Runtime.InteropServices.ComTypes.IStream stream)
{
// Exit if Stream is NULL
if (stream == null) { return null; }
// Get Pointer to Int32
int cb;
int* pcb = &cb;
// Get Size of the object's Byte Array
byte[] arrLen = new Byte[4];
stream.Read(arrLen, arrLen.Length, new IntPtr(pcb));
cb = BitConverter.ToInt32(arrLen, 0);
// Read the object's Byte Array
byte[] bytes = new byte[cb];
stream.Read(bytes, cb, new IntPtr(pcb));
if (bytes.Length != cb)
throw new Exception("Error reading object from stream");
// Deserialize byte array
AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(PeristStreamHelper.ResolveEventHandler);
object data = null;
MemoryStream memoryStream = new MemoryStream(bytes);
BinaryFormatter binaryFormatter = new BinaryFormatter();
object objectDeserialize = binaryFormatter.Deserialize(memoryStream);
if (objectDeserialize != null)
{
data = objectDeserialize;
}
memoryStream.Close();
AppDomain.CurrentDomain.AssemblyResolve -= new ResolveEventHandler(PeristStreamHelper.ResolveEventHandler);
//deserialize ArcObjects
if (data is string)
{
string str = (string)data;
if (str.IndexOf("http://www.esri.com/schemas/ArcGIS/9.2") != -1)
{
IXMLStream readerStream = new XMLStreamClass();
readerStream.LoadFromString(str);
IXMLReader xmlReader = new XMLReaderClass();
xmlReader.ReadFrom((IStream)readerStream);
IXMLSerializer xmlReadSerializer = new XMLSerializerClass();
object retObj = xmlReadSerializer.ReadObject(xmlReader, null, null);
if (null != retObj)
data = retObj;
}
}
return data;
}
/// <summary>
/// Serializes an object using ArcObjects xml serialization into a BSON Element
/// Used by the CatalogDataset to store metadata
/// </summary>
/// <param name="ipItem">The object to serialize</param>
/// <returns>The BSON element containing the bytes</returns>
internal static BsonValue ObjectToBson(System.Object ipItem)
{
IXMLStream ipXmlStream = new XMLStreamClass();
IXMLWriter ipXmlWriter = new XMLWriterClass();
ipXmlWriter.WriteTo((IStream)ipXmlStream);
IXMLSerializer ipXmlSer = new XMLSerializerClass();
ipXmlSer.WriteObject(ipXmlWriter, null, null, "Test", "Test", ipItem);
byte[] bytes = ipXmlStream.SaveToBytes();
return(BsonValue.Create(bytes));
}
public static IGeometry ReadGeometryFromXml(string filePath)
{
IXMLSerializer serializer = new XMLSerializerClass();
IXMLReader reader = new XMLReaderClass();
IXMLStream stream = new XMLStreamClass();
stream.LoadFromFile(filePath);
reader.ReadFrom((IStream)stream);
return((IGeometry)serializer.ReadObject(reader, null, null));
}
private static object ReadGeometryFromXML(string filePath)
{
IXMLSerializer serializer = new XMLSerializerClass();
IXMLReader reader = new XMLReaderClass();
IXMLStream stream = new XMLStreamClass();
stream.LoadFromFile(filePath);
reader.ReadFrom((IStream)stream);
return(serializer.ReadObject(reader, null, null));
}
/// <summary>
/// Gets an object serialized using ArcObjects xml serialization from a BSON Element
/// Used by the CatalogDataset to extract metadata
/// </summary>
/// <param name="byteStuff">The BSON element containing the bytes</param>
/// <returns>The object deserialized</returns>
internal static System.Object BsonToObject(BsonElement byteStuff)
{
try
{
byte[] bytes = byteStuff.Value.AsByteArray;
IXMLStream ipXmlStream = new XMLStreamClass();
ipXmlStream.LoadFromBytes(ref bytes);
IXMLReader ipXmlReader = new XMLReaderClass();
ipXmlReader.ReadFrom((IStream)ipXmlStream);
IXMLSerializer ipXmlSer = new XMLSerializerClass();
return(ipXmlSer.ReadObject(ipXmlReader, null, null));
}
catch (Exception)
{
throw new COMException("Value expected as byte array isn't");
}
}
public static object ReadFromXml(string xmlFilePath)
{
try
{
IFile inputXmlFile = new FileStreamClass();
inputXmlFile.Open(xmlFilePath, esriFilePermission.esriReadWrite);
IXMLReader myXmlReader = new XMLReaderClass();
myXmlReader.ReadFrom((IStream)inputXmlFile);
IXMLSerializer myInputXmlSerializer = new XMLSerializerClass();
object myFunctionObject = myInputXmlSerializer.ReadObject(myXmlReader, null, null);
return(myFunctionObject);
}
catch (Exception exc)
{
Console.WriteLine("Exception caught in ReadFromXml: " + exc.Message);
return(null);
}
}
unsafe public static void Save(System.Runtime.InteropServices.ComTypes.IStream stream, object data)
{
// Exit if Stream or DataTable is NULL
if (stream == null)
{
return;
}
if (data == null)
{
return;
}
//COM objects needs special care...
if (Marshal.IsComObject(data))
{
//*** Create XmlWriter ***
IXMLWriter xmlWriter = new XMLWriterClass();
//*** Create XmlStream ***
IXMLStream xmlStream = new XMLStreamClass();
//*** Write the object to the stream ***
xmlWriter.WriteTo(xmlStream as IStream);
//*** Serialize object ***
IXMLSerializer xmlSerializer = new XMLSerializerClass();
xmlSerializer.WriteObject(xmlWriter, null, null, "arcobject", "http://www.esri.com/schemas/ArcGIS/9.2", data);
string str = xmlStream.SaveToString();
data = (object)str;
if (null == data)
{
return;
}
}
//make sure that the object is serializable
if (!data.GetType().IsSerializable)
{
throw new Exception("Object is not serializable.");
}
// Convert the string into a byte array
MemoryStream memoryStream = new MemoryStream();
BinaryFormatter binaryFormatter = new BinaryFormatter();
binaryFormatter.Serialize(memoryStream, data);
byte[] bytes = memoryStream.ToArray();
memoryStream.Close();
// Get Memory Pointer to Int32
int cb;
int *pcb = &cb;
// write the object to the structured stream
byte[] arrLen = BitConverter.GetBytes(bytes.Length); // Get Byte Length
stream.Write(arrLen, arrLen.Length, new IntPtr(pcb)); // Write Byte Length
stream.Write(bytes, bytes.Length, new IntPtr(pcb)); // Write Btye Array
if (bytes.Length != cb)
{
throw new Exception("Error writing object to stream");
}
}
unsafe public static object Load(System.Runtime.InteropServices.ComTypes.IStream stream)
{
// Exit if Stream is NULL
if (stream == null)
{
return(null);
}
// Get Pointer to Int32
int cb;
int *pcb = &cb;
// Get Size of the object's Byte Array
byte[] arrLen = new Byte[4];
stream.Read(arrLen, arrLen.Length, new IntPtr(pcb));
cb = BitConverter.ToInt32(arrLen, 0);
// Read the object's Byte Array
byte[] bytes = new byte[cb];
stream.Read(bytes, cb, new IntPtr(pcb));
if (bytes.Length != cb)
{
throw new Exception("Error reading object from stream");
}
// Deserialize byte array
AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(PeristStreamHelper.ResolveEventHandler);
object data = null;
MemoryStream memoryStream = new MemoryStream(bytes);
BinaryFormatter binaryFormatter = new BinaryFormatter();
object objectDeserialize = binaryFormatter.Deserialize(memoryStream);
if (objectDeserialize != null)
{
data = objectDeserialize;
}
memoryStream.Close();
AppDomain.CurrentDomain.AssemblyResolve -= new ResolveEventHandler(PeristStreamHelper.ResolveEventHandler);
//deserialize ArcObjects
if (data is string)
{
string str = (string)data;
if (str.IndexOf("http://www.esri.com/schemas/ArcGIS/9.2") != -1)
{
IXMLStream readerStream = new XMLStreamClass();
readerStream.LoadFromString(str);
IXMLReader xmlReader = new XMLReaderClass();
xmlReader.ReadFrom((IStream)readerStream);
IXMLSerializer xmlReadSerializer = new XMLSerializerClass();
object retObj = xmlReadSerializer.ReadObject(xmlReader, null, null);
if (null != retObj)
{
data = retObj;
}
}
}
return(data);
}
unsafe public static void Save(System.Runtime.InteropServices.ComTypes.IStream stream, object data)
{
// Exit if Stream or DataTable is NULL
if (stream == null) { return; }
if (data == null) { return; }
//COM objects needs special care...
if (Marshal.IsComObject(data))
{
//*** Create XmlWriter ***
IXMLWriter xmlWriter = new XMLWriterClass();
//*** Create XmlStream ***
IXMLStream xmlStream = new XMLStreamClass();
//*** Write the object to the stream ***
xmlWriter.WriteTo(xmlStream as IStream);
//*** Serialize object ***
IXMLSerializer xmlSerializer = new XMLSerializerClass();
xmlSerializer.WriteObject(xmlWriter, null, null, "arcobject", "http://www.esri.com/schemas/ArcGIS/9.2", data);
string str = xmlStream.SaveToString();
data = (object)str;
if (null == data)
return;
}
//make sure that the object is serializable
if (!data.GetType().IsSerializable)
throw new Exception("Object is not serializable.");
// Convert the string into a byte array
MemoryStream memoryStream = new MemoryStream();
BinaryFormatter binaryFormatter = new BinaryFormatter();
binaryFormatter.Serialize(memoryStream, data);
byte[] bytes = memoryStream.ToArray();
memoryStream.Close();
// Get Memory Pointer to Int32
int cb;
int* pcb = &cb;
// write the object to the structured stream
byte[] arrLen = BitConverter.GetBytes(bytes.Length); // Get Byte Length
stream.Write(arrLen, arrLen.Length, new IntPtr(pcb)); // Write Byte Length
stream.Write(bytes, bytes.Length, new IntPtr(pcb)); // Write Btye Array
if (bytes.Length != cb)
throw new Exception("Error writing object to stream");
}
public static object ReadFromXml(string xmlFilePath)
{
try
{
IFile inputXmlFile = new FileStreamClass();
inputXmlFile.Open(xmlFilePath, esriFilePermission.esriReadWrite);
IXMLReader myXmlReader = new XMLReaderClass();
myXmlReader.ReadFrom((IStream)inputXmlFile);
IXMLSerializer myInputXmlSerializer = new XMLSerializerClass();
object myFunctionObject = myInputXmlSerializer.ReadObject(myXmlReader, null, null);
return myFunctionObject;
}
catch (Exception exc)
{
Console.WriteLine("Exception caught in ReadFromXml: " + exc.Message);
return null;
}
}
public static bool WriteToXml(object inputDataset, string xmlFilePath)
{
try
{
// Check if file exists
if (File.Exists(xmlFilePath))
{
Console.WriteLine("File already exists.");
return false;
}
// Create new file.
IFile xmlFile = new FileStreamClass();
xmlFile.Open(xmlFilePath, esriFilePermission.esriReadWrite);
// See if the input dataset can be Xml serialized.
IXMLSerialize mySerializeData = (IXMLSerialize)inputDataset;
// Create new XmlWriter object.
IXMLWriter myXmlWriter = new XMLWriterClass();
myXmlWriter.WriteTo((IStream)xmlFile);
myXmlWriter.WriteXMLDeclaration();
IXMLSerializer myXmlSerializer = new XMLSerializerClass();
// Write to XML File
myXmlSerializer.WriteObject(myXmlWriter, null, null, null, null, mySerializeData);
Console.WriteLine("Success.");
return true;
}
catch (Exception exc)
{
Console.WriteLine("Exception caught in WriteToXml: " + exc.Message);
Console.WriteLine("Failed.");
return false;
}
}
