Exemplo n.º 1
0
        // 根据读者证状态对读者库进行检索
        // parameters:
        //      strMatchStyle   匹配方式 left exact right middle
        //      strState  读者证状态
        //      bOnlyIncirculation  是否仅仅包括参与流通的数据库? true ：仅仅包括； false : 包括全部
        //      bGetPath    == true 获得path; == false 获得barcode
        // return:
        //      -1  error
        //      其他    命中记录条数(不超过nMax规定的极限)
        public int SearchReaderState(
            // RmsChannelCollection channels,
            RmsChannel channel,
            string strState,
            string strMatchStyle,
            bool bOnlyIncirculation,
            bool bGetPath,
            int nMax,
            out List<string> aPathOrBarcode,
            out string strError)
        {
            strError = "";
            aPathOrBarcode = null;

            LibraryApplication app = this;

            // 构造检索式
            string strQueryXml = "";
            int nDbCount = 0;
            for (int i = 0; i < app.ReaderDbs.Count; i++)
            {
                string strDbName = app.ReaderDbs[i].DbName;

                if (bOnlyIncirculation == true)
                {
                    if (app.ReaderDbs[i].InCirculation == false)
                        continue;
                }

                Debug.Assert(String.IsNullOrEmpty(strDbName) == false, "");

                string strOneDbQuery = "<target list='"
                    + StringUtil.GetXmlStringSimple(strDbName + ":" + "状态")
                    + "'><item><word>"
                    + StringUtil.GetXmlStringSimple(strState)
                    + "</word><match>" + strMatchStyle + "</match><relation>=</relation><dataType>string</dataType><maxCount>" + nMax.ToString() + "</maxCount></item><lang>zh</lang></target>";

                if (nDbCount > 0)
                {
                    Debug.Assert(String.IsNullOrEmpty(strQueryXml) == false, "");
                    strQueryXml += "<operator value='OR'/>";
                }

                strQueryXml += strOneDbQuery;
                nDbCount++;
            }

            if (nDbCount > 0)
            {
                strQueryXml = "<group>" + strQueryXml + "</group>";
            }
            else
            {
                strError = "目前尚没有参与流通的读者库";
                return -1;
            }

#if NO
            RmsChannel channel = channels.GetChannel(app.WsUrl);
            if (channel == null)
            {
                strError = "get channel error";
                return -1;
            }
#endif

            string strResultSetName = "search_reader_state_001";

            long lRet = channel.DoSearch(strQueryXml,
                strResultSetName,
                "", // strOuputStyle
                out strError);
            if (lRet == -1)
                goto ERROR1;

            // not found
            if (lRet == 0)
            {
                strError = "读者证状态 '" + strState + "' (匹配方式: " + strMatchStyle + ") 没有命中";
                return 0;
            }

            long lHitCount = lRet;

            if (bGetPath == true)
            {
                lRet = channel.DoGetSearchResult(
                    strResultSetName,
                    0,
                    nMax,
                    "zh",
                    null,
                    out aPathOrBarcode,
                    out strError);
                if (lRet == -1)
                    goto ERROR1;
            }
            else
            {
                // 获取检索命中结果
                // 获得某一列信息的版本
                lRet = channel.DoGetSearchResultOneColumn(
                    strResultSetName,
                    0,
                    nMax,
                    "zh",
                    null,
                    0,  // nColumn,
                    out aPathOrBarcode,
                    out strError);
            }

            if (aPathOrBarcode.Count == 0)
            {
                strError = "DoGetSearchResult aPath error 和前面已经命中的条件矛盾";
                goto ERROR1;
            }

            return (int)lHitCount;
        ERROR1:
            return -1;
        }