Leaked source code of windows server 2003
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using System;
using System.Collections;
using System.Data;
using System.IO;
using System.Net;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Web.Services;
using System.Web.Services.Description;
using System.Web.Services.Protocols;
using System.Xml;
using System.Xml.Schema;
using System.Xml.Serialization;
using System.Data.SqlClient;
using UDDI;
using UDDI.API;
using UDDI.Diagnostics;
namespace UDDI.Replication
{
/// ********************************************************************
/// class ReplicationHelper
/// --------------------------------------------------------------------
/// <summary>
/// </summary>
/// ********************************************************************
///
public class ReplicationHelper
{
private static OperatorNode LocalOperator = null;
private static X509Certificate LocalCertificate = null;
private static OperatorNodeCollection RemoteOperators = null;
private static ChangeRecordVectorCollection ChangesAlreadySeen = null;
private static ReplicationSoapClient SoapClient = null;
private static Hashtable NodeChangeRecordCounts = null;
private static Hashtable SessionChangeRecordCounts = null;
/// ****************************************************************
/// private Initialize [static]
/// ----------------------------------------------------------------
/// <summary>
/// Initializes replication variables.
/// </summary>
/// ****************************************************************
///
private static void Initialize()
{
Debug.Enter();
Debug.VerifySetting( "OperatorKey" );
//
// Get information about the local operator node.
//
LocalOperator = new OperatorNode( Config.GetString( "OperatorKey" ) );
LocalOperator.Get();
//
// Get the local certificate.
//
LocalCertificate = new X509Certificate( LocalOperator.Certificate );
//
// Get the list of operator nodes to which we can send
// get_changeRecords messages. Remove ourself from the
// list!
//
RemoteOperators = new OperatorNodeCollection();
RemoteOperators.Get();
RemoteOperators.Remove( LocalOperator.OperatorNodeID );
//
// Get a ChangesAlreadySeen list for each operator node (not
// just the ones we are replicating with).
//
GetHighWaterMarks();
//
// Initialize our soap client.
//
string proxy = Config.GetString( "Proxy", null );
SoapClient = new ReplicationSoapClient();
SoapClient.ClientCertificates.Add( LocalCertificate );
if( !Utility.StringEmpty( proxy ) )
SoapClient.Proxy = new WebProxy( proxy, true );
//
// Setup the context for a replication session.
//
Context.ApiVersionMajor = 2;
Context.ContextType = ContextType.Replication;
Context.LogChangeRecords = false;
//
// Setup logging.
//
SessionChangeRecordCounts = new Hashtable();
foreach( int payloadType in Enum.GetValues( typeof( ChangeRecordPayloadType ) ) )
{
SessionChangeRecordCounts[ payloadType ] = 0;
}
Debug.Leave();
}
private static void GetHighWaterMarks()
{
try
{
GetHighWaterMarks getHighWaterMarks = new GetHighWaterMarks();
HighWaterMarkDetail detail = getHighWaterMarks.Get();
ChangesAlreadySeen = detail.HighWaterMarks;
}
catch( Exception e )
{
#if never
Debug.OperatorMessage(
SeverityType.Error,
CategoryType.Replication,
OperatorMessageType.CannotRetrieveHighWaterMarks,
"Could not retrive high water marks for operator nodes.\r\n\r\nDetail:\r\n" + e.ToString() );
#endif
Debug.OperatorMessage(
SeverityType.Error,
CategoryType.Replication,
OperatorMessageType.CannotRetrieveHighWaterMarks,
new UDDIText( "UDDI_ERROR_REPLICATION_HIGHWATER_MARKS", e.ToString() ).GetText() );
throw new UDDIException( ErrorType.E_fatalError, "UDDI_ERROR_REPLICATION_HIGHWATER_MARKS", e );
}
}
/// ****************************************************************
/// public Replicate [static]
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
public static void Replicate()
{
//
// Initialize the replication session.
//
Initialize();
//
// Verify that we do in fact have operators to replicate
// with.
//
if( RemoteOperators.Count < 1 )
{
#if never
Debug.OperatorMessage(
SeverityType.Info,
CategoryType.Replication,
OperatorMessageType.NoReplicationOperators,
"There are no operators to replicate with. Please check the replication configuration." );
#endif
Debug.OperatorMessage(
SeverityType.Info,
CategoryType.Replication,
OperatorMessageType.NoReplicationOperators,
new UDDIText( "UDDI_ERROR_REPLICATION_NO_OPERATORS" ).GetText() );
return;
}
//
// TODO: Get the node id of the last operator we replicated
// with.
//
//
// TODO: Re-order the operator node list so that we replicate
// in a round-robin fashion.
//
//
// Create the start replication session log entry.
//
LogSessionStart();
//
// Replicate with each operator node.
//
foreach( OperatorNode remoteNode in RemoteOperators )
{
ReplicationResult result = null;
//
// Log the node replication start.
//
LogOperatorStart( remoteNode );
//
// Get the branch list for the node. The branch list is
// the remote node itself, plus any alternatives that we
// may try if we have trouble communicating with the first
// node. For now, we don't support alternate nodes, so
// the remote node is the only node we add to this list.
//
OperatorNodeCollection branchNodes = new OperatorNodeCollection();
branchNodes.Add( remoteNode );
foreach( OperatorNode branchNode in branchNodes )
{
//
// Get the last replication status for this node.
//
result = ReplicateWithNode( branchNode );
if( ReplicationStatus.Success == result.ReplicationStatus )
break;
//
// Determine what we should do based on this attempts result
// and the result of the last replication cycle with this
// node. TODO: if it is a communication error, we'll need
// to try alternate edges. This is reserved until alternate
// edges are actually used.
//
}
//
// Log the node replication end.
//
LogOperatorEnd( remoteNode, result );
}
//
// Create the end replication session log entry.
//
LogSessionEnd();
Debug.Leave();
}
/// ****************************************************************
/// public ReplicateWithNode [static]
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
public static ReplicationResult ReplicateWithNode( string operatorNodeID )
{
OperatorNode remoteNode = null;
//
// Initialize the replication session.
//
Initialize();
//
// Replicate with the specified node.
//
try
{
remoteNode = new OperatorNode( operatorNodeID );
remoteNode.Get();
}
catch( Exception e )
{
#if never
string message = String.Format(
"Could not get details for operator {{{0}}}.\r\n\r\nDetails:\r\n{1}",
operatorNodeID,
e.ToString() );
Debug.OperatorMessage(
SeverityType.Error,
CategoryType.Replication,
OperatorMessageType.UnknownOperator,
message );
throw new Exception( message, e );
#endif
UDDIText uddiText = new UDDIText( "UDDI_ERROR_REPLICATION_OPERATOR_DETAILS", operatorNodeID, e.ToString() );
Debug.OperatorMessage(
SeverityType.Error,
CategoryType.Replication,
OperatorMessageType.UnknownOperator,
uddiText.GetText() );
throw new UDDIException( ErrorType.E_fatalError, uddiText.GetText() );
}
//
// Log the node replication start.
//
LogOperatorStart( remoteNode );
//
// Replicate
//
ReplicationResult result = ReplicateWithNode( remoteNode );
//
// Log the node replication end.
//
LogOperatorEnd( remoteNode, result );
return result;
}
/// ****************************************************************
/// private ReplicateWithNode [static]
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
private static ReplicationResult ReplicateWithNode( OperatorNode remoteNode )
{
//
// Retrieve the change records from the remote node and process
// them.
//
ChangeRecordCollection changeRecords = null;
//
// Keep track of the number of times we call GetChangeRecords on each operator. We
// don't want to be in a situation where we call them infinitely if they keep updating
// their data.
//
int maxIterations = Config.GetInt( "Replication.MaxGetChangeIterations", 100 );
int iterations = 0;
//
// Keep getting change records until there are no more; we need to do this because some
// operators will limit the number of change records that they send back.
//
do
{
try
{
changeRecords = GetChangeRecords( remoteNode );
}
catch( Exception e )
{
return ReplicationResult.LogCommunicationError( remoteNode, e, ChangesAlreadySeen );
}
foreach( ChangeRecord changeRecord in changeRecords )
{
//
// Make sure we haven't seen this change record before.
//
if( ChangesAlreadySeen.IsProcessed( changeRecord.ChangeID ) )
{
Debug.Write(
SeverityType.Info,
CategoryType.Replication,
String.Format(
"Change already seen.\r\nSkipping record {0}:{1} retrieved from node {2}",
changeRecord.ChangeID.NodeID,
changeRecord.ChangeID.OriginatingUSN,
remoteNode.OperatorNodeID ) );
continue;
}
//
// Make sure we aren't trying to replicate one of our own
// change records.
//
if( 0 == String.Compare( changeRecord.ChangeID.NodeID, LocalOperator.OperatorNodeID, true ) )
{
Debug.Write(
SeverityType.Info,
CategoryType.Replication,
String.Format(
"Skipping replication of local change record.\r\nSkipping record {0}:{1} retrieved from node {2}",
changeRecord.ChangeID.NodeID,
changeRecord.ChangeID.OriginatingUSN,
remoteNode.OperatorNodeID ) );
continue;
}
//
// Begin a transaction.
//
ConnectionManager.BeginTransaction();
try
{
//
// Set user context information and process the
// change record.
//
Context.User.ID = changeRecord.ChangeID.NodeID;
Context.TimeStamp = DateTime.Now;
//
// Validate the change record, then process it. There is a very good
// reason for doing this validation on a change record by change record
// basis: if there is one error in the incoming change record stream,
// we would reject the entire stream, not just the errant change record.
//
SchemaCollection.Validate( changeRecord );
try
{
changeRecord.Process();
}
catch( Exception innerException )
{
//
// Exceptions that are related to IN 60 are ignored.
//
if( Context.ExceptionSource == ExceptionSource.PublisherAssertion ||
Context.ExceptionSource == ExceptionSource.BrokenServiceProjection )
{
//
// Log the error
//
ReplicationResult.LogInvalidKeyWarning( remoteNode, changeRecord, innerException );
}
else
{
//
// Otherwise, throw the exception for real.
//
throw innerException;
}
}
//
// Commit the transaction.
//
ConnectionManager.Commit();
//
// Update our changeAlreadySeen vector for the
// originating node.
//
ChangesAlreadySeen.MarkAsProcessed( changeRecord.ChangeID );
//
// Update log counts.
//
LogCounts( changeRecord );
}
catch( Exception e )
{
ConnectionManager.Abort();
return ReplicationResult.LogValidationError( remoteNode, changeRecord, e, ChangesAlreadySeen );
}
}
//
// Refresh our highwater mark vector. We do this instead of calling gethighwatermarks on the
// operator because hitting our DB is faster then making the SOAP call across HTTP.
//
GetHighWaterMarks();
iterations++;
}while( 0 != changeRecords.Count && iterations < maxIterations );
//
// Log success!
//
return ReplicationResult.LogSuccess( remoteNode, null );
}
/// ****************************************************************
/// private GetChangeRecords [static]
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
private static ChangeRecordCollection GetChangeRecords( OperatorNode remoteNode )
{
GetChangeRecords getChangeRecords = new GetChangeRecords();
getChangeRecords.RequestingNode = LocalOperator.OperatorNodeID;
getChangeRecords.ChangesAlreadySeen = ChangesAlreadySeen;
SoapClient.Url = remoteNode.SoapReplicationURL;
ChangeRecordDetail detail = SoapClient.GetChangeRecords( getChangeRecords );
return detail.ChangeRecords;
}
/// ****************************************************************
/// private LogSessionStart [static]
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
private static void LogSessionStart()
{
StringWriter log = new StringWriter();
try
{
// log.WriteLine( "Replication cycle started." );
log.WriteLine( new UDDIText( "UDDI_MSG_REPLICATION_START" ).GetText() );
log.WriteLine();
// log.WriteLine( "REPLICATION NODES:" );
log.WriteLine( new UDDIText( "UDDI_MSG_REPLICATION_NODES" ).GetText() );
foreach( OperatorNode operatorNode in RemoteOperators )
{
log.Write( " " );
log.WriteLine( operatorNode.Name );
log.Write( " {" );
log.Write( operatorNode.OperatorNodeID );
log.WriteLine( "}" );
log.Write( " " );
log.WriteLine( operatorNode.SoapReplicationURL );
log.WriteLine();
}
// log.WriteLine( "CURRENT HIGHWATER MARKS:" );
log.WriteLine( new UDDIText( "UDDI_MSG_REPLICATION_CURRENT_HIGHWATER_MARKS" ).GetText() );
foreach( ChangeRecordVector vector in ChangesAlreadySeen )
{
log.Write( " {" );
log.Write( vector.NodeID );
log.Write( "} : " );
log.WriteLine( vector.OriginatingUSN );
}
Debug.OperatorMessage(
SeverityType.Info,
CategoryType.Replication,
OperatorMessageType.StartingReplicationSession,
log.ToString() );
}
finally
{
log.Close();
}
}
/// ****************************************************************
/// private LogOperatorStart [static]
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
private static void LogOperatorStart( OperatorNode remoteNode )
{
NodeChangeRecordCounts = new Hashtable();
foreach( int payloadType in Enum.GetValues( typeof( ChangeRecordPayloadType ) ) )
{
NodeChangeRecordCounts[ payloadType ] = 0;
}
StringWriter log = new StringWriter();
try
{
// log.WriteLine( "Starting replication with node.\r\n" );
log.WriteLine( new UDDIText( "UDDI_MSG_REPLICATION_NODE_START" ).GetText() );
// log.WriteLine( "REPLICATION NODE:" );
log.WriteLine( new UDDIText( "UDDI_MSG_REPLICATION_NODE" ).GetText() );
log.Write( " " );
log.WriteLine( remoteNode.Name );
log.Write( " {" );
log.Write( remoteNode.OperatorNodeID );
log.WriteLine( "}" );
log.Write( " " );
log.WriteLine( remoteNode.SoapReplicationURL );
log.WriteLine();
// log.WriteLine( "CURRENT HIGHWATER MARKS:" );
log.WriteLine( new UDDIText( "UDDI_MSG_REPLICATION_CURRENT_HIGHWATER_MARKS" ).GetText() );
foreach( ChangeRecordVector vector in ChangesAlreadySeen )
{
log.Write( " {" );
log.Write( vector.NodeID );
log.Write( "} : " );
log.WriteLine( vector.OriginatingUSN );
}
Debug.OperatorMessage(
SeverityType.Info,
CategoryType.Replication,
OperatorMessageType.StartingReplicationWithNode,
log.ToString() );
}
finally
{
log.Close();
}
}
/// ****************************************************************
/// private LogOperatorEnd [static]
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
private static void LogOperatorEnd( OperatorNode remoteNode, ReplicationResult result )
{
StringWriter log = new StringWriter();
try
{
if( ReplicationStatus.Success == result.ReplicationStatus )
{
// log.WriteLine( "Replication with node complete." );
log.WriteLine( new UDDIText( "UDDI_MSG_REPLICATION_COMPLETE" ).GetText() );
}
else
{
// log.Write( "Replication with node interrupted\r\n ERROR: " );
log.Write( new UDDIText( "UDDI_MSG_REPLICATION_INTERRUPTED" ).GetText() );
log.WriteLine( result.ReplicationStatus.ToString() );
}
log.WriteLine();
// log.WriteLine( "REPLICATION NODE:" );
log.WriteLine( new UDDIText( "UDDI_MSG_REPLICATION_NODE" ).GetText() );
log.Write( " " );
log.WriteLine( remoteNode.Name );
log.Write( " {" );
log.Write( remoteNode.OperatorNodeID );
log.WriteLine( "}" );
log.Write( " " );
log.WriteLine( remoteNode.SoapReplicationURL );
log.WriteLine();
// log.WriteLine( "CHANGE RECORDS PROCESSED:" );
log.WriteLine( new UDDIText( "UDDI_MSG_REPLICATION_CHANGE_RECORDS_PROCESSED" ).GetText() );
foreach( int payloadType in Enum.GetValues( typeof( ChangeRecordPayloadType ) ) )
{
string name = Enum.GetName( typeof( ChangeRecordPayloadType ), payloadType ) + ":";
log.Write( " " );
log.Write( name.PadRight( 30 ) );
log.Write( "\t" );
log.WriteLine( NodeChangeRecordCounts[ payloadType ] );
}
log.WriteLine();
//log.WriteLine( "NEW HIGHWATER MARKS:" );
log.WriteLine( new UDDIText( "UDDI_MSG_REPLICATION_NEW_HIGHWATER_MARKS" ).GetText() );
foreach( ChangeRecordVector vector in ChangesAlreadySeen )
{
log.Write( " {" );
log.Write( vector.NodeID );
log.Write( "} : " );
log.WriteLine( vector.OriginatingUSN );
}
SeverityType severity = SeverityType.Info;
if( ReplicationStatus.Success != result.ReplicationStatus )
severity = SeverityType.Error;
string message = log.ToString();
//
// Log results
//
Debug.OperatorMessage(
severity,
CategoryType.Replication,
OperatorMessageType.EndingReplicationWithNode,
message );
//
// Only send mail on success; if there was a failure, mail will be sent at the point of failure.
//
if( ReplicationStatus.Success == result.ReplicationStatus )
{
Debug.OperatorMail(
SeverityType.None,
CategoryType.Replication,
OperatorMessageType.EndingReplicationWithNode,
message );
}
}
finally
{
log.Close();
}
//
// Add the operator node counts to the totals.
//
foreach( int payloadType in Enum.GetValues( typeof( ChangeRecordPayloadType ) ) )
{
SessionChangeRecordCounts[ payloadType ] = (int)SessionChangeRecordCounts[ payloadType ] + (int)NodeChangeRecordCounts[ payloadType ];
}
}
/// ****************************************************************
/// private LogSessionEnd [static]
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
private static void LogSessionEnd()
{
StringWriter log = new StringWriter();
try
{
// log.WriteLine( "Replication cycle complete." );
log.WriteLine( new UDDIText( "UDDI_MSG_REPLICATION_END" ).GetText() );
log.WriteLine();
//log.WriteLine( "CHANGE RECORDS PROCESSED:" );
log.WriteLine( new UDDIText( "UDDI_MSG_REPLICATION_CHANGERECORDS_PROCESSED" ).GetText() );
foreach( int payloadType in Enum.GetValues( typeof( ChangeRecordPayloadType ) ) )
{
string name = Enum.GetName( typeof( ChangeRecordPayloadType ), payloadType ) + ":";
log.Write( " " );
log.Write( name.PadRight( 30 ) );
log.Write( "\t" );
log.WriteLine( SessionChangeRecordCounts[ payloadType ] );
}
log.WriteLine();
// log.WriteLine( "NEW HIGHWATER MARKS:" );
log.WriteLine( new UDDIText( "UDDI_MSG_REPLICATION_NEW_HIGHWATER_MARKS" ).GetText() );
foreach( ChangeRecordVector vector in ChangesAlreadySeen )
{
log.Write( " {" );
log.Write( vector.NodeID );
log.Write( "} : " );
log.WriteLine( vector.OriginatingUSN );
}
Debug.OperatorMessage(
SeverityType.Info,
CategoryType.Replication,
OperatorMessageType.EndingReplicationWithNode,
log.ToString() );
}
finally
{
log.Close();
}
}
/// ****************************************************************
/// private LogCounts [static]
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
private static void LogCounts( ChangeRecord changeRecord )
{
int payloadType = (int)changeRecord.Payload.ChangeRecordPayloadType;
NodeChangeRecordCounts[ payloadType ] = (int)NodeChangeRecordCounts[ payloadType ] + 1;
}
}
/// ********************************************************************
/// class ReplicationResult
/// --------------------------------------------------------------------
/// <summary>
/// </summary>
/// ********************************************************************
///
public class ReplicationResult
{
public UDDI.Replication.ReplicationStatus ReplicationStatus;
public string OperatorNodeID;
public string Description;
public string LastNodeID;
public long LastUSN;
public long LastChange;
/// ****************************************************************
/// public GetLast
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
public void GetLast( string operatorNodeID, bool inboundStatus )
{
Debug.Enter();
SqlStoredProcedureAccessor sp = new SqlStoredProcedureAccessor();
sp.ProcedureName = "net_operatorLogLast_get";
sp.Parameters.Add( "@operatorKey", SqlDbType.UniqueIdentifier );
sp.Parameters.Add( "@inboundStatus", SqlDbType.Bit );
sp.Parameters.Add( "@replStatusID", SqlDbType.TinyInt, ParameterDirection.Output );
sp.Parameters.Add( "@description", SqlDbType.NVarChar, UDDI.Constants.Lengths.Description, ParameterDirection.Output );
sp.Parameters.Add( "@lastOperatorKey", SqlDbType.UniqueIdentifier, ParameterDirection.Output );
sp.Parameters.Add( "@lastUSN", SqlDbType.BigInt, ParameterDirection.Output );
sp.Parameters.Add( "@lastChange", SqlDbType.BigInt, ParameterDirection.Output );
sp.Parameters.SetGuidFromString( "@operatorKey", operatorNodeID );
sp.Parameters.SetBool( "@inboundStatus", inboundStatus );
sp.ExecuteNonQuery();
this.OperatorNodeID = operatorNodeID;
this.ReplicationStatus = (ReplicationStatus)sp.Parameters.GetShort( "@replStatusID" );
this.Description = sp.Parameters.GetString( "@description" );
this.LastNodeID = sp.Parameters.GetGuidString( "@lastOperatorKey" );
this.LastUSN = sp.Parameters.GetLong( "@lastUSN" );
this.LastChange = sp.Parameters.GetLong( "@lastChange" );
Debug.Leave();
}
/// ****************************************************************
/// public Save
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
public void Save()
{
Debug.Enter();
try
{
SqlStoredProcedureAccessor sp = new SqlStoredProcedureAccessor();
sp.ProcedureName = "net_operatorLog_save";
sp.Parameters.Add( "@operatorKey", SqlDbType.UniqueIdentifier );
sp.Parameters.Add( "@replStatusID", SqlDbType.TinyInt );
sp.Parameters.Add( "@description", SqlDbType.NVarChar, UDDI.Constants.Lengths.Description );
sp.Parameters.Add( "@lastOperatorKey", SqlDbType.UniqueIdentifier );
sp.Parameters.Add( "@lastUSN", SqlDbType.BigInt );
sp.Parameters.Add( "@lastChange", SqlDbType.BigInt );
sp.Parameters.SetGuidFromString( "@operatorKey", OperatorNodeID );
sp.Parameters.SetShort( "@replStatusID", (short)ReplicationStatus );
sp.Parameters.SetString( "@description", Description );
sp.Parameters.SetGuidFromString( "@lastOperatorKey", LastNodeID );
sp.Parameters.SetLong( "@lastUSN", LastUSN );
sp.Parameters.SetLong( "@lastChange", LastChange );
sp.ExecuteNonQuery();
}
catch
{
#if never
Debug.OperatorMessage(
SeverityType.Error,
CategoryType.Replication,
OperatorMessageType.ValidationError,
String.Format(
"Could not store last replication result.\r\n\r\n" +
"REPLICATION NODE:\r\n" +
" {{{0}}}\r\n\r\n" +
"CHANGE RECORD:\r\n" +
" {{{1}}} : {2}",
OperatorNodeID,
LastNodeID,
LastUSN ) );
#endif
Debug.OperatorMessage(
SeverityType.Error,
CategoryType.Replication,
OperatorMessageType.ValidationError,
new UDDIText( "UDDI_ERROR_REPLICATION_COULD_NOT_STORE_RESULT", OperatorNodeID, LastNodeID, LastUSN ).GetText() );
}
Debug.Leave();
}
/// ****************************************************************
/// public LogSuccess [static]
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
public static ReplicationResult LogSuccess( OperatorNode remoteNode, string description )
{
ReplicationResult result = new ReplicationResult();
result.ReplicationStatus = ReplicationStatus.Success;
result.Description = description;
result.OperatorNodeID = remoteNode.OperatorNodeID;
result.LastNodeID = null;
result.LastUSN = 0;
result.LastChange = DateTime.UtcNow.Ticks;
result.Save();
return result;
}
/// ****************************************************************
/// public LogCommunicationError [static]
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
public static ReplicationResult LogCommunicationError( OperatorNode remoteNode, Exception e, ChangeRecordVectorCollection changesAlreadySeen )
{
ReplicationResult result = new ReplicationResult();
result.ReplicationStatus = ReplicationStatus.CommunicationError;
result.Description = e.ToString();
result.OperatorNodeID = remoteNode.OperatorNodeID;
result.LastNodeID = null;
result.LastUSN = 0;
result.LastChange = DateTime.UtcNow.Ticks;
result.Save();
string response = e.ToString();
if( e is WebException )
{
WebException we = (WebException)e;
if( null != we.Response )
{
StreamReader reader = null;
try
{
reader = new StreamReader( we.Response.GetResponseStream() );
response += "\r\nRESPONSE:\r\n\r\n";
response += reader.ReadToEnd();
}
catch
{
}
finally
{
if( null != reader )
reader.Close();
}
}
}
else if( e is SoapException )
{
SoapException se = (SoapException)e;
if( null != se.Detail )
{
response += "\r\nSOAP FAULT DETAILS:\r\n\r\n";
response += se.Detail.OuterXml;
}
}
//
// Also send the highwater marks.
//
StringWriter highWaterMarks = new StringWriter();
foreach( ChangeRecordVector vector in changesAlreadySeen )
{
highWaterMarks.Write( " {" );
highWaterMarks.Write( vector.NodeID );
highWaterMarks.Write( "} : " );
highWaterMarks.WriteLine( vector.OriginatingUSN );
}
#if never
//
// Communications Error
//
string message = String.Format(
"Error communicating with operator.\r\n\r\n" +
"REPLICATION NODE:\r\n" +
" {0}\r\n" +
" {{{1}}}\r\n" +
" {2}\r\n\r\n" +
"DETAILS:\r\n\r\n{3}\r\n\r\nCURRENT HIGHWATER MARKS:\r\n\r\n{4}",
remoteNode.Name,
remoteNode.OperatorNodeID,
remoteNode.SoapReplicationURL,
response,
highWaterMarks.ToString() );
#endif
//
// Communications Error
//
UDDIText message = new UDDIText( "UDDI_ERROR_REPLICATION_OPERATOR_COMMUNICATION_ERROR",
remoteNode.Name,
remoteNode.OperatorNodeID,
remoteNode.SoapReplicationURL,
response,
highWaterMarks.ToString() );
Debug.OperatorMessage(
SeverityType.Error,
CategoryType.Replication,
OperatorMessageType.ErrorCommunicatingWithNode,
message.GetText() );
Debug.OperatorMail(
SeverityType.Error,
CategoryType.Replication,
OperatorMessageType.ErrorCommunicatingWithNode,
message.GetText() );
return result;
}
/// ****************************************************************
/// public LogValidationError [static]
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
public static ReplicationResult LogValidationError( OperatorNode remoteNode, ChangeRecord changeRecord, Exception e, ChangeRecordVectorCollection changesAlreadySeen )
{
ReplicationResult result = new ReplicationResult();
result.ReplicationStatus = ReplicationStatus.ValidationError;
result.Description = e.ToString();
result.OperatorNodeID = remoteNode.OperatorNodeID;
result.LastNodeID = changeRecord.ChangeID.NodeID;
result.LastUSN = changeRecord.ChangeID.OriginatingUSN;
result.LastChange = DateTime.UtcNow.Ticks;
result.Save();
//
// Also send the highwater marks.
//
StringWriter highWaterMarks = new StringWriter();
foreach( ChangeRecordVector vector in changesAlreadySeen )
{
highWaterMarks.Write( " {" );
highWaterMarks.Write( vector.NodeID );
highWaterMarks.Write( "} : " );
highWaterMarks.WriteLine( vector.OriginatingUSN );
}
#if never
string message = String.Format(
"Could not process entity from remote operator.\r\n\r\n" +
"REPLICATION NODE:\r\n" +
" {0}\r\n" +
" {{{1}}}\r\n" +
" {2}\r\n\r\n" +
"DETAILS:\r\n\r\n" +
"{3}\r\n\r\n" +
"CHANGE RECORD:\r\n" +
" {{{4}}} : {5}\r\n\r\n" +
"{6}\r\n\r\nCURRENT HIGHWATER MARKS:\r\n\r\n{7}",
remoteNode.Name,
remoteNode.OperatorNodeID,
remoteNode.SoapReplicationURL,
e.ToString(),
changeRecord.ChangeID.NodeID,
changeRecord.ChangeID.OriginatingUSN,
changeRecord.ToString(),
highWaterMarks.ToString() );
#endif
UDDIText message = new UDDIText( "UDDI_ERROR_REPLICATION_COULD_NOT_PROCESS_ENTITY",
remoteNode.Name,
remoteNode.OperatorNodeID,
remoteNode.SoapReplicationURL,
e.ToString(),
changeRecord.ChangeID.NodeID,
changeRecord.ChangeID.OriginatingUSN,
changeRecord.ToString(),
highWaterMarks.ToString() );
Debug.OperatorMessage(
SeverityType.Error,
CategoryType.Replication,
OperatorMessageType.ValidationError,
message.GetText() );
Debug.OperatorMail(
SeverityType.Error,
CategoryType.Replication,
OperatorMessageType.ValidationError,
message.GetText() );
return result;
}
public static void LogInvalidKeyWarning( OperatorNode remoteNode, ChangeRecord changeRecord, Exception e )
{
ReplicationResult result = new ReplicationResult();
result.ReplicationStatus = ReplicationStatus.CommunicationError;
result.Description = e.ToString();
result.OperatorNodeID = remoteNode.OperatorNodeID;
result.LastNodeID = changeRecord.ChangeID.NodeID;
result.LastUSN = changeRecord.ChangeID.OriginatingUSN;
result.LastChange = DateTime.UtcNow.Ticks;
result.Save();
#if never
string message = String.Format(
"Invalid key from remote operator.\r\n\r\n" +
"REPLICATION NODE:\r\n" +
" {0}\r\n" +
" {{{1}}}\r\n" +
" {2}\r\n\r\n" +
"DETAILS:\r\n\r\n" +
"{3}\r\n\r\n" +
"CHANGE RECORD:\r\n" +
" {{{4}}} : {5}\r\n\r\n" +
"{6}",
remoteNode.Name,
remoteNode.OperatorNodeID,
remoteNode.SoapReplicationURL,
e.ToString(),
changeRecord.ChangeID.NodeID,
changeRecord.ChangeID.OriginatingUSN,
changeRecord.ToString() );
#endif
UDDIText message = new UDDIText( "UDDI_ERROR_REPLICATION_INVALID_KEY",
remoteNode.Name,
remoteNode.OperatorNodeID,
remoteNode.SoapReplicationURL,
e.ToString(),
changeRecord.ChangeID.NodeID,
changeRecord.ChangeID.OriginatingUSN,
changeRecord.ToString() );
Debug.OperatorMessage(
SeverityType.Warning,
CategoryType.Replication,
OperatorMessageType.InvalidKey,
message.GetText() );
//
// TODO for now don't send mail on a warning.
//
#if never
Debug.OperatorMail(
SeverityType.Error,
CategoryType.Replication,
OperatorMessageType.ValidationError,
message );
#endif
}
}
/// ********************************************************************
/// class ReplicationSoapClient
/// --------------------------------------------------------------------
/// <summary>
/// </summary>
/// ********************************************************************
///
[ WebServiceBinding( Name="ExternalMessagesSoap", Namespace=UDDI.Replication.Constants.Namespace ) ]
internal sealed class ReplicationSoapClient : SoapHttpClientProtocol
{
/// ****************************************************************
/// public GetChangeRecords
/// ----------------------------------------------------------------
/// <summary>
/// </summary>
/// ****************************************************************
///
[ System.Diagnostics.DebuggerStepThrough ]
[ SoapDocumentMethod( "", Use=SoapBindingUse.Literal, ParameterStyle=SoapParameterStyle.Bare ) ]
[ return: XmlElement( "changeRecords", Namespace=UDDI.Replication.Constants.Namespace, IsNullable=false ) ]
public ChangeRecordDetail GetChangeRecords( GetChangeRecords get_changeRecords )
{
object[] results = Invoke( "GetChangeRecords", new object[] { get_changeRecords } );
return (ChangeRecordDetail)results[ 0 ];
}
protected override WebRequest GetWebRequest( Uri uri )
{
WebRequest innerWebRequest = base.GetWebRequest( uri );
UDDIWebRequest webRequest = new UDDIWebRequest( innerWebRequest );
return webRequest;
}
}
/// <summary>
/// UDDIWebResponse allows us to return our own Stream object.
/// </summary>
internal class UDDIWebResponse : WebResponse
{
WebResponse innerWebResponse;
UDDIResponseStream uddiResponseStream;
/// <summary>
/// Constructor
/// </summary>
/// <param name="innerWebResponse">This object should come from the WebResponse created by HttpSoapClientProtocol.</param>
public UDDIWebResponse( WebResponse innerWebResponse )
{
this.innerWebResponse = innerWebResponse;
}
/// <summary>
/// Return our response stream (UDDIResponseStream) instead of the Stream associated with our inner response.
/// </summary>
/// <returns></returns>
public override Stream GetResponseStream()
{
if( null == uddiResponseStream )
{
uddiResponseStream = new UDDIResponseStream( innerWebResponse.GetResponseStream() );
}
return uddiResponseStream;
}
/// <summary>
/// Delegates to the inner web response.
/// </summary>
public override void Close()
{
innerWebResponse.Close();
}
/// <summary>
/// Delegates to the inner web response.
/// </summary>
public override long ContentLength
{
get { return innerWebResponse.ContentLength; }
set { innerWebResponse.ContentLength = value; }
}
/// <summary>
/// Delegates to the inner web response.
/// </summary>
public override string ContentType
{
get { return innerWebResponse.ContentType; }
set { innerWebResponse.ContentType = value; }
}
/// <summary>
/// Delegates to the inner web response.
/// </summary>
public override Uri ResponseUri
{
get { return innerWebResponse.ResponseUri; }
}
/// <summary>
/// Delegates to the inner web response.
/// </summary>
public override WebHeaderCollection Headers
{
get { return innerWebResponse.Headers; }
}
}
/// <summary>
/// UDDIResponseStream allows us to manipulate the XML sent back from the web service.
/// </summary>
internal class UDDIResponseStream : MemoryStream
{
//
// TODO: at some point it may be necessary to pass in the current version as a parameter if the transforms become
// more complicated.
//
/// <summary>
/// Constructor. We read all the XML sent from the server, do our version manipulation, then write the new XML
/// into our inner responseStream object.
/// </summary>
/// <param name="responseStream">This object should be the responseStream from a WebResponse object.</param>
public UDDIResponseStream( Stream responseStream )
{
try
{
//
// Get the XML the server sent to us.
//
StreamReader reader = new StreamReader( responseStream );
string responseXml = reader.ReadToEnd();
reader.Close();
//
// Write this transformed XML into ourselves.
//
StreamUtility.WriteStringToStream( this, responseXml );
//
// Rewind ourselves
//
this.Position = 0;
//
// Validate the incoming XML. We have to read the data from the stream first because it is not seekable
//
try
{
SchemaCollection.Validate( this );
}
catch( XmlSchemaException schemaException )
{
string message = schemaException.ToString() + "\r\n\r\nResponse XML:\r\n\r\n" + responseXml;
Debug.OperatorMessage( SeverityType.Error, CategoryType.Replication, OperatorMessageType.ValidationError, message );
throw schemaException;
}
}
finally
{
//
// Rewind ourselves
//
this.Position = 0;
}
}
}
/// <summary>
/// UDDIWebRequest allows us to return our own request and response objects.
/// </summary>
/// <summary>
/// UDDIWebRequest allows us to return our own request and response objects.
/// </summary>
internal class UDDIWebRequest : WebRequest
{
WebRequest innerWebRequest;
UDDIRequestStream uddiRequestStream;
UDDIWebResponse uddiWebResponse;
/// <summary>
/// Constructor
/// </summary>
/// <param name="uri">Uri to the web service we are calling</param>
/// <param name="uddiVersion">UDDI version to use for requests</param>
public UDDIWebRequest( WebRequest innerWebRequest )
{
this.innerWebRequest = innerWebRequest;
}
/// <summary>
/// Return a UDDIRequestStream object instead of the default one.
/// </summary>
/// <returns>UDDIRequestStream object</returns>
public override Stream GetRequestStream()
{
if( null == uddiRequestStream )
{
uddiRequestStream = new UDDIRequestStream( innerWebRequest.GetRequestStream() );
}
return uddiRequestStream;
}
/// <summary>
/// Return a UDDIWebRequest object instead of the default one.
/// </summary>
/// <returns>UDDIWebResponse object</returns>
public override WebResponse GetResponse()
{
if( null == uddiWebResponse )
{
uddiWebResponse = new UDDIWebResponse( innerWebRequest.GetResponse() );
}
return uddiWebResponse;
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override string Method
{
get { return innerWebRequest.Method; }
set { innerWebRequest.Method = value; }
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override Uri RequestUri
{
get { return innerWebRequest.RequestUri; }
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override string ConnectionGroupName
{
get { return innerWebRequest.ConnectionGroupName; }
set { innerWebRequest.ConnectionGroupName = value; }
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override WebHeaderCollection Headers
{
get { return innerWebRequest.Headers; }
set { innerWebRequest.Headers = value; }
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override long ContentLength
{
get { return innerWebRequest.ContentLength; }
set { innerWebRequest.ContentLength = value; }
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override string ContentType
{
get { return innerWebRequest.ContentType; }
set { innerWebRequest.ContentType = value; }
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override ICredentials Credentials
{
get { return innerWebRequest.Credentials; }
set { innerWebRequest.Credentials = value; }
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override IWebProxy Proxy
{
get { return innerWebRequest.Proxy; }
set { innerWebRequest.Proxy = value; }
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override bool PreAuthenticate
{
get { return innerWebRequest.PreAuthenticate; }
set { innerWebRequest.PreAuthenticate = value; }
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override int Timeout
{
get { return innerWebRequest.Timeout; }
set { innerWebRequest.Timeout = value; }
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override IAsyncResult BeginGetResponse(AsyncCallback callback, object state)
{
return innerWebRequest.BeginGetResponse( callback, state );
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override WebResponse EndGetResponse(IAsyncResult asyncResult)
{
return innerWebRequest.EndGetResponse( asyncResult );
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override IAsyncResult BeginGetRequestStream(AsyncCallback callback, Object state)
{
return innerWebRequest.BeginGetRequestStream( callback, state );
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override Stream EndGetRequestStream(IAsyncResult asyncResult)
{
return innerWebRequest.EndGetRequestStream( asyncResult );
}
/// <summary>
/// Delegates to our inner WebRequest
/// </summary>
public override void Abort()
{
innerWebRequest.Abort();
}
}
/// <summary>
/// UDDIRequestStream allows us to manipulate the XML before we send it to the client. This class will accept all data that
/// is written to it from the ASP.NET web service framework. When the framework closes the stream (ie. wants to send the data), we
/// will manipulate this XML so that it has the right UDDI version, then send it out using our innerStream object.
/// </summary>
internal class UDDIRequestStream : MemoryStream
{
Stream innerStream;
/// <summary>
/// Constructor
/// </summary>
/// <param name="innerStream">Should be from a WebRequest object.</param>
/// <param name="uddiVersion">The UDD version we should use to send to the server</param>
public UDDIRequestStream( Stream innerStream )
{
this.innerStream = innerStream;
}
/// <summary>
/// Before we actually close the request stream, we want to manipulate the XML.
/// </summary>
public override void Close()
{
try
{
//
// Rewind ourselves.
//
this.Position = 0;
//
// Read the XML that was written; this is the XML request that will be sent to the UDDI server.
//
StreamReader reader = new StreamReader( this );
string requestXml = reader.ReadToEnd();
//
// Rewind ourselves.
//
this.Position = 0;
#if DEBUG
try
{
//
// Validate the XML that we are about to send.
//
SchemaCollection.Validate( this );
}
catch( XmlSchemaException schemaException )
{
string message = schemaException.ToString() + "\r\n\r\nRequest XML:\r\n\r\n" + requestXml;
Debug.OperatorMessage( SeverityType.Error, CategoryType.Replication, OperatorMessageType.ValidationError, message );
throw schemaException;
}
#endif
//
// Write the transformed data to the 'real' stream.
//
StreamUtility.WriteStringToStream( innerStream, requestXml );
}
finally
{
//
// Make sure we clean up properly.
//
innerStream.Close();
base.Close();
}
}
}
/// <summary>
/// Simple utility class to help us write string data to Stream objects.
/// </summary>
internal sealed class StreamUtility
{
public static void WriteStringToStream( Stream stream, string stringToWrite )
{
StreamWriter writer = new StreamWriter( stream );
writer.Write( stringToWrite );
writer.Flush();
}
}
}