我遇到一种情况，我收到多个文件，需要将它们压缩到一个Zip文件中，
我在biztalk中汇总了设计模式，该模式调用下面的管道，但是我编写的下面的管道只是压缩了一个文件，
using Ionic.Zip;
using Microsoft.BizTalk.Component.Interop;
using Microsoft.BizTalk.Message.Interop;
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace BizTalkLive.Zip
{
[ComponentCategory(CategoryTypes.CATID_PipelineComponent)]
[System.Runtime.InteropServices.Guid("6F31BA70-F87E-4150-B5A5-2803D00C4FA0")]
[ComponentCategory(CategoryTypes.CATID_Encoder)]
public class Zip:IBaseComponent,IPersistPropertyBag,IComponentUI,IComponent
{
#region IBaseComponent
public string Description
{
get
{
return "Pipeline component used to zip a message";
}
}
public string Name
{
get
{
return "ZipEncoder";
}
}
public string Version
{
get
{
return "1.0.0.0";
}
}
#endregion
#region IPersistPropertyBag
/// <summary>
/// Gets class ID of component for usage from unmanaged code.
/// </summary>
/// <param name="classid">
/// Class ID of the component
/// </param>
public void GetClassID(out System.Guid classid)
{
classid = new System.Guid("6F31BA70-F87E-4150-B5A5-2803D00C4FA0");
}
/// <summary>
/// not implemented
/// </summary>
public void InitNew()
{
}
/// <summary>
/// Loads configuration properties for the component
/// </summary>
/// <param name="pb">Configuration property bag</param>
/// <param name="errlog">Error status</param>
public virtual void Load(Microsoft.BizTalk.Component.Interop.IPropertyBag pb, int errlog)
{
}
/// <summary>
/// Saves the current component configuration into the property bag
/// </summary>
/// <param name="pb">Configuration property bag</param>
/// <param name="fClearDirty">not used</param>
/// <param name="fSaveAllProperties">not used</param>
public virtual void Save(Microsoft.BizTalk.Component.Interop.IPropertyBag pb, bool fClearDirty, bool fSaveAllProperties)
{
}
#region utility functionality
/// <summary>
/// Reads property value from property bag
/// </summary>
/// <param name="pb">Property bag</param>
/// <param name="propName">Name of property</param>
/// <returns>Value of the property</returns>
private object ReadPropertyBag(Microsoft.BizTalk.Component.Interop.IPropertyBag pb, string propName)
{
object val = null;
try
{
pb.Read(propName, out val, 0);
}
catch (System.ArgumentException)
{
return val;
}
catch (System.Exception e)
{
throw new System.ApplicationException(e.Message);
}
return val;
}
/// <summary>
/// Writes property values into a property bag.
/// </summary>
/// <param name="pb">Property bag.</param>
/// <param name="propName">Name of property.</param>
/// <param name="val">Value of property.</param>
private void WritePropertyBag(Microsoft.BizTalk.Component.Interop.IPropertyBag pb, string propName, object val)
{
try
{
pb.Write(propName, ref val);
}
catch (System.Exception e)
{
throw new System.ApplicationException(e.Message);
}
}
#endregion
#endregion
#region IComponentUI
public IntPtr Icon
{
get
{
return IntPtr.Zero;
}
}
public IEnumerator Validate(object projectystem)
{
return null;
}
#endregion
#region IComponent
/// <summary>
/// Implements IComponent.Execute method.
/// </summary>
/// <param name="pc">Pipeline context</param>
/// <param name="inmsg">Input message</param>
/// <returns>Original input message</returns>
/// <remarks>
/// IComponent.Execute method is used to initiate
/// the processing of the message in this pipeline component.
/// </remarks>
public Microsoft.BizTalk.Message.Interop.IBaseMessage Execute(Microsoft.BizTalk.Component.Interop.IPipelineContext pc, Microsoft.BizTalk.Message.Interop.IBaseMessage inmsg)
{
IBaseMessageContext context = inmsg.Context;
string fileName = string.Empty;
object obj = context.Read("ReceivedFileName", "http://schemas.microsoft.com/BizTalk/2003/file-properties");
fileName = ((string)obj).Substring(((string)obj).LastIndexOf("\\") + 1);
Byte[] TextFileBytes = null;
IBaseMessagePart msgBodyPart = inmsg.BodyPart;
//Creating outMessage
IBaseMessage outMessage;
outMessage = pc.GetMessageFactory().CreateMessage();
if (msgBodyPart != null)
{
outMessage.Context = PipelineUtil.CloneMessageContext(inmsg.Context);
Stream msgBodyPartStream = msgBodyPart.GetOriginalDataStream();
TextFileBytes = ReadToEnd(msgBodyPartStream);
outMessage.AddPart("Body", pc.GetMessageFactory().CreateMessagePart(), true);
IDictionary<string, Byte[]> lst = new Dictionary<string, Byte[]>();
lst.Add(fileName, TextFileBytes);
MemoryStream ms;
using (ZipFile zip = new ZipFile())
{
foreach (KeyValuePair<string, Byte[]> item in (IDictionary<string, Byte[]>)lst)
{
zip.AddEntry(item.Key, item.Value);
}
ms = new MemoryStream();
ms.Seek(0, SeekOrigin.Begin);
zip.Save(ms);
}
ms.Position = 0;
outMessage.BodyPart.Data = ms;
outMessage.Context.Promote("ReceivedFileName", "http://schemas.microsoft.com/BizTalk/2003/file-properties", fileName.Substring(0,fileName.IndexOf(".")));
}
return outMessage;
}
public static byte[] ReadToEnd(System.IO.Stream stream)
{
long originalPosition = 0;
if (stream.CanSeek)
{
originalPosition = stream.Position;
stream.Position = 0;
}
try
{
byte[] readBuffer = new byte[4096];
int totalBytesRead = 0;
int bytesRead;
while ((bytesRead = stream.Read(readBuffer, totalBytesRead, readBuffer.Length - totalBytesRead)) > 0)
{
totalBytesRead += bytesRead;
if (totalBytesRead == readBuffer.Length)
{
int nextByte = stream.ReadByte();
if (nextByte != -1)
{
byte[] temp = new byte[readBuffer.Length * 2];
Buffer.BlockCopy(readBuffer, 0, temp, 0, readBuffer.Length);
Buffer.SetByte(temp, totalBytesRead, (byte)nextByte);
readBuffer = temp;
totalBytesRead++;
}
}
}
byte[] buffer = readBuffer;
if (readBuffer.Length != totalBytesRead)
{
buffer = new byte[totalBytesRead];
Buffer.BlockCopy(readBuffer, 0, buffer, 0, totalBytesRead);
}
return buffer;
}
finally
{
if (stream.CanSeek)
{
stream.Position = originalPosition;
}
}
}
#endregion
}
}
我想创建一个自定义管道组件，我可以在组装阶段使用它，在这里我可以聚合所有消息并将其压缩到一个存档中
答案 0 :(得分：0)
您需要使用ZipArchive。 以下示例显示了其使用情况之一：
2019.05.08 20:46:12 ERROR [TaskEngine-pool-16]: org.jivesoftware.openfire.pubsub.PubSubPersistenceManager - Incorrect syntax near the keyword 'LEFT'.
java.sql.BatchUpdateException: Incorrect syntax near the keyword 'LEFT'.
at net.sourceforge.jtds.jdbc.JtdsStatement.executeBatch(JtdsStatement.java:1069) ~[jtds-1.3.1.jar:1.3.1]
at org.apache.commons.dbcp2.DelegatingStatement.executeBatch(DelegatingStatement.java:223) ~[commons-dbcp2-2.5.0.jar:2.5.0]
at org.apache.commons.dbcp2.DelegatingStatement.executeBatch(DelegatingStatement.java:223) ~[commons-dbcp2-2.5.0.jar:2.5.0]
at org.jivesoftware.openfire.pubsub.PubSubPersistenceManager.purgeItems(PubSubPersistenceManager.java:1893) [xmppserver-4.3.2.jar:4.3.2]
at org.jivesoftware.openfire.pubsub.PubSubPersistenceManager.access$000(PubSubPersistenceManager.java:57) [xmppserver-4.3.2.jar:4.3.2]
at org.jivesoftware.openfire.pubsub.PubSubPersistenceManager$2.run(PubSubPersistenceManager.java:283) [xmppserver-4.3.2.jar:4.3.2]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_202]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_202]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_202]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_202]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_202]