Alfresco：在 ftp 中覆盖文件时增加文档版本

Question

我想在 ftp 中覆盖文件时增加次要文档版本。当我跟踪代码时，ContentDiskDriver2.truncateFile() 用于覆盖文件。在这个函数中，我使用versionService 来增加版本。以下代码写在 truncateFile() 试试 {

    NodeRef nodeRef = getNodeForPath(tree, DriverContent.FILE_OPEN_PARAMS.getPath());
    System.out.println("Node Ref: " + nodeRef);

    // Increase minor version to file.
    Map<String, Serializable> versionProperties = new HashMap<String, Serializable>(2, 1.0f);
    versionProperties.put(Version.PROP_DESCRIPTION, "");
    versionProperties.put(VersionModel.PROP_VERSION_TYPE, VersionType.MINOR);

    VersionService versionService = (VersionService) applicationContext.getBean("versionService");
    versionService.createVersion(nodeRef, versionProperties);
} catch (FileNotFoundException e) {
    e.printStackTrace();
}

但不幸的是，我收到了这个错误。

2013-01-02 14:12:31,609  ERROR [org.alfresco.fileserver] [Sess_FTP3_192.168.1.166] Error from JLAN
 org.alfresco.error.AlfrescoRuntimeException: 00020073 Transaction must be active and synchronization is required: Thread[Sess_FTP3_192.168.1.166,5,FTPSessions]
    at org.alfresco.repo.transaction.AlfrescoTransactionSupport.registerSynchronizations(AlfrescoTransactionSupport.java:467)
    at org.alfresco.repo.transaction.AlfrescoTransactionSupport.getSynchronization(AlfrescoTransactionSupport.java:451)
    at org.alfresco.repo.transaction.AlfrescoTransactionSupport.getResource(AlfrescoTransactionSupport.java:244)
    at org.alfresco.repo.transaction.TransactionalResourceHelper.incrementCount(TransactionalResourceHelper.java:71)
    at org.alfresco.repo.policy.BehaviourFilterImpl.disableBehaviour(BehaviourFilterImpl.java:158)
    at org.alfresco.repo.version.Version2ServiceImpl.createVersion(Version2ServiceImpl.java:212)
    at org.alfresco.repo.version.Version2ServiceImpl.createVersion(Version2ServiceImpl.java:140)
    at org.alfresco.filesys.repo.ContentDiskDriver2.increaseVersion(ContentDiskDriver2.java:2937)
    at org.alfresco.filesys.repo.ContentDiskDriver2.truncateFile(ContentDiskDriver2.java:1652)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:196)
    at $Proxy97.truncateFile(Unknown Source)
    at org.alfresco.filesys.repo.NonTransactionalRuleContentDiskDriver.truncateFile(NonTransactionalRuleContentDiskDriver.java:480)
    at org.alfresco.filesys.repo.LegacyFileStateDriver.truncateFile(LegacyFileStateDriver.java:471)
    at org.alfresco.filesys.repo.BufferedContentDiskDriver.truncateFile(BufferedContentDiskDriver.java:532)
    at org.alfresco.jlan.ftp.FTPSrvSession.procStoreFile(FTPSrvSession.java:2262)
    at org.alfresco.jlan.ftp.FTPSrvSession.run(FTPSrvSession.java:4924)
    at java.lang.Thread.run(Thread.java:662)

您能帮我解决一下事务必须处于活动状态并且需要同步

我找到了这个链接.. Is the Alfresco repository document version history available via CIFS/FTP?

Answer 1

你已经被“小字母”与“大字母”户外服务所吸引

“小字母”服务是原始服务，通常仅在其他 Alfresco 低级服务中使用。 “大信”服务是面向用户的封装服务，包括交易、审计、安全等。

对于您的情况，您需要使用 Big Letter 表单，因此更改行

VersionService versionService = (VersionService) applicationContext.getBean("versionService");

给正确的一个：

VersionService versionService = (VersionService) applicationContext.getBean("VersionService");

您将获得一份带有事务、安全性等的 VersionService 副本，我认为这是您的情况所需要的。 （请注意，bean 是使用大首字母而不是小字母获取的）

Answer 2

这是我找到的替代解决方案。明确使用事务。

    VersionService versionService = (VersionService) applicationContext.getBean("VersionService");
    TransactionService transactionService = (TransactionService) applicationContext.getBean("transactionService");

    UserTransaction tx = null;
    try {
        tx = transactionService.getUserTransaction();
        tx.begin();
        versionService.createVersion(nodeRef, versionProperties);
        tx.commit();
    } 
    catch (Exception e) 
    {
        if(tx != null)
        {
            try
            {
                tx.rollback();
            } catch (IllegalStateException e1) 
            {
                e1.printStackTrace();
            } catch (SecurityException e2) 
            {
                e2.printStackTrace();
            } catch (SystemException e3) 
            {
                e3.printStackTrace();
            }
        }
    }