whole lot more moving

OpenSim/Data/Base/BaseDataReader.cs

@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSim Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Data;
+using System.IO;
+
+namespace OpenSim.Framework.Data.Base
+{
+    public abstract class BaseDataReader
+    {
+        private readonly IDataReader m_source;
+
+        public BaseDataReader(IDataReader source)
+        {
+            m_source = source;
+        }
+
+        public object Get(string name)
+        {
+            return m_source[name];
+        }
+
+        public ushort GetUShort(string name)
+        {
+            return (ushort)m_source.GetInt32(m_source.GetOrdinal(name));
+        }
+
+        public byte GetByte(string name)
+        {
+            int ordinal = m_source.GetOrdinal(name);
+            byte value = (byte)m_source.GetInt16(ordinal);
+            return value;
+        }
+
+        public sbyte GetSByte(string name)
+        {
+            return (sbyte)m_source.GetInt16(m_source.GetOrdinal(name));
+        }
+
+        public float GetFloat(string name)
+        {
+            return m_source.GetFloat(m_source.GetOrdinal(name));
+        }
+
+        public byte[] GetBytes(string name)
+        {
+            int ordinal = m_source.GetOrdinal(name);
+
+            if (m_source.GetValue(ordinal) == DBNull.Value)
+            {
+                return null;
+            }
+
+            byte[] buffer = new byte[16384];
+
+            MemoryStream memStream = new MemoryStream();
+
+            long totalRead = 0;
+
+            int bytesRead;
+            do
+            {
+                bytesRead = (int)m_source.GetBytes(ordinal, totalRead, buffer, 0, buffer.Length);
+                totalRead += bytesRead;
+
+                memStream.Write(buffer, 0, bytesRead);
+            } while (bytesRead == buffer.Length);
+
+            return memStream.ToArray();
+        }
+
+        public string GetString(string name)
+        {
+            int ordinal = m_source.GetOrdinal(name);
+            object value = m_source.GetValue(ordinal);
+
+            if (value is DBNull)
+            {
+                return null;
+            }
+
+            return (string)value;
+        }
+
+        public bool Read()
+        {
+            return m_source.Read();
+        }
+
+        public virtual Guid GetGuid(string name)
+        {
+            return m_source.GetGuid(m_source.GetOrdinal(name));
+        }
+
+        public UInt32 GetUInt32(string name )
+        {
+            return (UInt32)GetInt32(name);
+        }
+
+        private Int32 GetInt32(string name)
+        {
+            int ordinal = m_source.GetOrdinal(name);
+            int int32 = m_source.GetInt32(ordinal);
+            return int32;            
+        }
+
+        public Int64 GetInt64(string  name)
+        {
+            int ordinal = m_source.GetOrdinal( name );
+            long int64 = m_source.GetInt64(ordinal);
+            return int64;
+        }
+    }
+}