コード例 #1
0
        int GetBrowseCols(List <string> pathlist,
                          List <ListViewItem> itemlist,
                          out string strError)
        {
            strError = "";

            // 获得server url
            if (String.IsNullOrEmpty(this.LibraryServerName) == true)
            {
                strError = "尚未指定服务器名";
                return(-1);
            }
            dp2Server server = this.MainForm.Servers.GetServerByName(this.LibraryServerName);

            if (server == null)
            {
                strError = "服务器名为 '" + this.LibraryServerName + "' 的服务器不存在...";
                return(-1);
            }

            string strServerUrl = server.Url;

            this.Channel = this.Channels.GetChannel(strServerUrl);

            EnableControls(false);

            stop.OnStop += new StopEventHandler(this.DoStop);
            stop.Initial("正在填充浏览列 ...");
            stop.BeginLoop();

            this.Update();
            this.MainForm.Update();

            try
            {
                int nStart = 0;
                int nCount = 0;
                for (; ;)
                {
                    nCount = pathlist.Count - nStart;
                    if (nCount > 100)
                    {
                        nCount = 100;
                    }
                    if (nCount <= 0)
                    {
                        break;
                    }

                    Application.DoEvents();     // 出让界面控制权

                    if (stop != null)
                    {
                        if (stop.State != 0)
                        {
                            strError = "用户中断";
                            return(-1);
                        }
                    }

                    stop.SetMessage("正在装入浏览信息 " + (nStart + 1).ToString() + " - " + (nStart + nCount).ToString());

                    string[] paths = new string[nCount];
                    pathlist.CopyTo(nStart, paths, 0, nCount);

                    DigitalPlatform.LibraryClient.localhost.Record[] searchresults = null;

                    long lRet = this.Channel.GetBrowseRecords(
                        this.stop,
                        paths,
                        "id,cols",
                        out searchresults,
                        out strError);
                    if (lRet == -1)
                    {
                        return(-1);
                    }

                    if (searchresults == null || searchresults.Length == 0)
                    {
                        strError = "searchresults == null || searchresults.Length == 0";
                        return(-1);
                    }

                    for (int i = 0; i < searchresults.Length; i++)
                    {
                        DigitalPlatform.LibraryClient.localhost.Record record = searchresults[i];

                        ListViewUtil.EnsureColumns(this.listView_browse,
                                                   2 + (record.Cols == null ? 0 : record.Cols.Length),
                                                   200);

                        ListViewItem item = itemlist[nStart + i];
                        item.Text = record.Path;
                        if (record.Cols != null)
                        {
                            for (int j = 0; j < record.Cols.Length; j++)
                            {
                                item.SubItems.Add(record.Cols[j]);
                            }
                        }
                    }


                    nStart += searchresults.Length;
                }
            }
            finally
            {
                stop.EndLoop();
                stop.OnStop -= new StopEventHandler(this.DoStop);
                stop.Initial("");

                EnableControls(true);
            }

            return(0);
        }
コード例 #2
0
        // 初始化一个读者库的指纹缓存
        // return:
        //      -1  出错
        //      >=0 实际发送给接口程序的事项数目
        static int BuildOneDbCache(
            LibraryChannel channel,
            string strDir,
            string strReaderDbName,
            CancellationToken token,
            out string strError)
        {
            strError = "";
            int nRet = 0;

            DpResultSet resultset = null;
            bool        bCreate   = false;

            Hashtable timestamp_table = new Hashtable();    // recpath --> fingerprint timestamp

            ShowMessage(strReaderDbName);

            // 结果集文件名
            string strResultsetFilename = Path.Combine(strDir, strReaderDbName);

            if (File.Exists(strResultsetFilename) == false)
            {
                resultset = new DpResultSet(false, false);
                resultset.Create(strResultsetFilename,
                                 strResultsetFilename + ".index");
                bCreate = true;
            }
            else
            {
                bCreate = false;
            }

            // *** 第一阶段, 创建新的结果集文件;或者获取全部读者记录中的指纹时间戳

            bool bDone = false;    // 创建情形下 是否完成了写入操作

            try
            {
                /*
                 * long lRet = Channel.SearchReader(stop,
                 * strReaderDbName,
                 * "1-9999999999",
                 * -1,
                 * "__id",
                 * "left",
                 * this.Lang,
                 * null,   // strResultSetName
                 * "", // strOutputStyle
                 * out strError);
                 */
                long lRet = channel.SearchReader(null,  // stop,
                                                 strReaderDbName,
                                                 "",
                                                 -1,
                                                 "指纹时间戳",
                                                 "left",
                                                 ClientInfo.Lang,
                                                 null, // strResultSetName
                                                 "",   // strOutputStyle
                                                 out strError);
                if (lRet == -1)
                {
                    if (channel.ErrorCode == ErrorCode.AccessDenied)
                    {
                        strError = "用户 " + channel.UserName + " 权限不足: " + strError;
                    }
                    return(-1);
                }

                if (lRet == 0)
                {
                    // TODO: 这时候如果以前有结果集文件还会残留,但不会影响功能正确性,可以改进为把残留的结果集文件删除
                    return(0);
                }

                long lHitCount = lRet;

                ResultSetLoader loader = new ResultSetLoader(channel,
                                                             null,
                                                             null,
                                                             bCreate == true ? "id,cols,format:cfgs/browse_fingerprint" : "id,cols,format:cfgs/browse_fingerprinttimestamp",
                                                             ClientInfo.Lang);
                loader.Prompt += Loader_Prompt;

                foreach (DigitalPlatform.LibraryClient.localhost.Record record in loader)
                {
                    token.ThrowIfCancellationRequested();

                    ShowMessage("正在处理读者记录 " + record.Path);

                    if (bCreate == true)
                    {
                        if (record.Cols == null || record.Cols.Length < 3)
                        {
                            strError = "record.Cols error ... 有可能是因为读者库缺乏配置文件 cfgs/browse_fingerprint";
                            return(-1);
                        }
                        if (string.IsNullOrEmpty(record.Cols[0]) == true)
                        {
                            continue;   // 读者记录中没有指纹信息
                        }
                        DpRecord item = new DpRecord(record.Path);
                        // timestamp | barcode | fingerprint
                        item.BrowseText = record.Cols[0] + "|" + record.Cols[1] + "|" + record.Cols[2];
                        resultset.Add(item);
                    }
                    else
                    {
                        if (record.Cols == null || record.Cols.Length < 1)
                        {
                            strError = "record.Cols error ... 有可能是因为读者库缺乏配置文件 cfgs/browse_fingerprinttimestamp";
                            return(-1);
                        }
                        if (record.Cols.Length < 2)
                        {
                            strError = "record.Cols error ... 需要刷新配置文件 cfgs/browse_fingerprinttimestamp 到最新版本";
                            return(-1);
                        }
                        if (string.IsNullOrEmpty(record.Cols[0]) == true)
                        {
                            continue;   // 读者记录中没有指纹信息
                        }
                        // 记载时间戳
                        // timestamp | barcode
                        timestamp_table[record.Path] = record.Cols[0] + "|" + record.Cols[1];
                    }
                }

#if NO
                // stop.SetProgressRange(0, lHitCount);

                long lStart = 0;
                long lCount = lHitCount;
                DigitalPlatform.LibraryClient.localhost.Record[] searchresults = null;

                // 装入浏览格式
                for (; ;)
                {
                    token.ThrowIfCancellationRequested();


                    lRet = channel.GetSearchResult(
                        null,
                        null,   // strResultSetName
                        lStart,
                        lCount,
                        bCreate == true ? "id,cols,format:cfgs/browse_fingerprint" : "id,cols,format:cfgs/browse_fingerprinttimestamp",
                        ClientInfo.Lang,
                        out searchresults,
                        out strError);
                    if (lRet == -1)
                    {
                        return(-1);
                    }

                    if (lRet == 0)
                    {
                        strError = "GetSearchResult() return 0";
                        return(-1);
                    }

                    Debug.Assert(searchresults != null, "");
                    Debug.Assert(searchresults.Length > 0, "");

                    for (int i = 0; i < searchresults.Length; i++)
                    {
                        DigitalPlatform.LibraryClient.localhost.Record record = searchresults[i];
                        if (bCreate == true)
                        {
                            if (record.Cols == null || record.Cols.Length < 3)
                            {
                                strError = "record.Cols error ... 有可能是因为读者库缺乏配置文件 cfgs/browse_fingerprint";
                                return(-1);
                            }
                            if (string.IsNullOrEmpty(record.Cols[0]) == true)
                            {
                                continue;   // 读者记录中没有指纹信息
                            }
                            DpRecord item = new DpRecord(record.Path);
                            // timestamp | barcode | fingerprint
                            item.BrowseText = record.Cols[0] + "|" + record.Cols[1] + "|" + record.Cols[2];
                            resultset.Add(item);
                        }
                        else
                        {
                            if (record.Cols == null || record.Cols.Length < 1)
                            {
                                strError = "record.Cols error ... 有可能是因为读者库缺乏配置文件 cfgs/browse_fingerprinttimestamp";
                                return(-1);
                            }
                            if (record.Cols.Length < 2)
                            {
                                strError = "record.Cols error ... 需要刷新配置文件 cfgs/browse_fingerprinttimestamp 到最新版本";
                                return(-1);
                            }
                            if (string.IsNullOrEmpty(record.Cols[0]) == true)
                            {
                                continue;   // 读者记录中没有指纹信息
                            }
                            // 记载时间戳
                            // timestamp | barcode
                            timestamp_table[record.Path] = record.Cols[0] + "|" + record.Cols[1];
                        }
                    }

                    lStart += searchresults.Length;
                    lCount -= searchresults.Length;

                    //stop.SetMessage(strReaderDbName + " 包含记录 " + lHitCount.ToString() + " 条,已装入 " + lStart.ToString() + " 条");

                    if (lStart >= lHitCount || lCount <= 0)
                    {
                        break;
                    }
                    //stop.SetProgressValue(lStart);
                }
#endif

                if (bCreate == true)
                {
                    bDone = true;
                }

                if (bCreate == true)
                {
                    // return:
                    //      -2  remoting服务器连接失败。驱动程序尚未启动
                    //      -1  出错
                    //      >=0 实际发送给接口程序的事项数目
                    nRet = CreateFingerprintCache(resultset,
                                                  out strError);
                    if (nRet == -1 || nRet == -2)
                    {
                        return(-1);
                    }

                    return(nRet);
                }
            }
            finally
            {
                if (bCreate == true)
                {
                    Debug.Assert(resultset != null, "");
                    if (bDone == true)
                    {
                        resultset.Detach(out string strTemp1,
                                         out string strTemp2);
                    }
                    else
                    {
                        // 否则文件会被删除
                        resultset.Close();
                    }
                }
            }

            // 比对时间戳,更新结果集文件
            Hashtable update_table = new Hashtable();   // 需要更新的事项。recpath --> 1
            resultset = new DpResultSet(false, false);
            resultset.Attach(strResultsetFilename,
                             strResultsetFilename + ".index");
            try
            {
                long nCount = resultset.Count;
                for (long i = 0; i < nCount; i++)
                {
                    token.ThrowIfCancellationRequested();


                    DpRecord record = resultset[i];

                    string strRecPath = record.ID;

                    ShowMessage("比对 " + strRecPath);

                    // timestamp | barcode
                    string strNewTimestamp = (string)timestamp_table[strRecPath];
                    if (strNewTimestamp == null)
                    {
                        // 最新状态下,读者记录已经不存在,需要从结果集中删除
                        resultset.RemoveAt((int)i);
                        i--;
                        nCount--;
                        continue;
                    }

                    // 拆分出证条码号 2013/1/28
                    string strNewBarcode = "";
                    nRet = strNewTimestamp.IndexOf("|");
                    if (nRet != -1)
                    {
                        strNewBarcode   = strNewTimestamp.Substring(nRet + 1);
                        strNewTimestamp = strNewTimestamp.Substring(0, nRet);
                    }

                    // 最新读者记录中已经没有指纹信息。例如读者记录中的指纹元素被删除了
                    if (string.IsNullOrEmpty(strNewTimestamp) == true)
                    {
                        // 删除现有事项
                        resultset.RemoveAt((int)i);
                        i--;
                        nCount--;

                        timestamp_table.Remove(strRecPath);
                        continue;
                    }

                    // 取得结果集文件中的原有时间戳字符串
                    string strText = record.BrowseText; // timestamp | barcode | fingerprint
                    nRet = strText.IndexOf("|");
                    if (nRet == -1)
                    {
                        strError = "browsetext 错误,没有 '|' 字符";
                        return(-1);
                    }
                    string strOldTimestamp = strText.Substring(0, nRet);
                    // timestamp | barcode | fingerprint
                    string strOldBarcode = strText.Substring(nRet + 1);
                    nRet = strOldBarcode.IndexOf("|");
                    if (nRet != -1)
                    {
                        strOldBarcode = strOldBarcode.Substring(0, nRet);
                    }

                    // 时间戳发生变化,需要更新事项
                    if (strNewTimestamp != strOldTimestamp ||
                        strNewBarcode != strOldBarcode)
                    {
                        // 如果证条码号为空,无法建立对照关系,要跳过
                        if (string.IsNullOrEmpty(strNewBarcode) == false)
                        {
                            update_table[strRecPath] = 1;
                        }

                        // 删除现有事项
                        resultset.RemoveAt((int)i);
                        i--;
                        nCount--;
                    }
                    timestamp_table.Remove(strRecPath);
                }

                // 循环结束后,timestamp_table中剩余的是当前结果集文件中没有包含的那些读者记录路径

                if (update_table.Count > 0)
                {
                    // 获取指纹信息,追加到结果集文件的尾部
                    // parameters:
                    //      update_table   key为读者记录路径
                    AppendFingerprintInfo(
                        channel,
                        resultset,
                        update_table,
                        token);
                }

                // 如果服务器端新增了指纹信息,需要获取后追加到结果集文件尾部
                if (timestamp_table.Count > 0)
                {
                    // 获取指纹信息,追加到结果集文件的尾部
                    // parameters:
                    //      update_table   key为读者记录路径
                    AppendFingerprintInfo(
                        channel,
                        resultset,
                        timestamp_table,
                        token);
                }

                // return:
                //      -2  remoting服务器连接失败。驱动程序尚未启动
                //      -1  出错
                //      >=0 实际发送给接口程序的事项数目
                nRet = CreateFingerprintCache(resultset,
                                              out strError);
                if (nRet == -1 || nRet == -2)
                {
                    return(-1);
                }

                return(nRet);
            }
            finally
            {
                resultset.Detach(out string strTemp1, out string strTemp2);
            }
        }