Examples of TLink

de.desy.tine.client.TLink
TLink.java User interface calls to access tine data links. The methods presented here deal with linking local application data with remote data sources. Primarily you will need to create a TLink object, passing the necessary identifying parameters of the remote server to which the link is to be established. When the TLink object is instantiated, you will then need to retrieve the data using one of the retrieval methods, e.g. execute() for synchronous acquisition, or attach() for asynchronous acquisition, or receive() for the acquisition of network globals.

Examples of de.desy.tine.client.TLink

      if (!isArchiveQueryProperty(property))
        pname = pname + ".HIST"; // meta extension not given, try this ...
    }
    try
    {
      TLink tl = new TLink(dname,pname,dout,din,TAccess.CA_READ);
      cc = tl.execute(timeout, true);
      tl.close();
    }
    catch (UnresolvedAddressException e)
    {
      cc = TErrorList.address_unresolved;
    }

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Examples of de.desy.tine.client.TLink

    {
      if (isCentralArchiveServer(server) || isCentralArchiver(server))
      { // call to a central archive server
        String[] keysrcs = new String[100]; 
        dout = new TDataType(keysrcs);
        TLink tl = new TLink(dname,"KEYWORD.SOURCE",dout,null,TAccess.CA_READ);
        cc = tl.executeAndClose(timeout);
        if (cc == 0) 
        {
          int len =dout.getCompletionLength();
          if (len < 100) keysrcs = Arrays.copyOf(keysrcs, len);
          src = keysrcs;

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Examples of de.desy.tine.client.TLink

      { // call to a central archive server
      FLTFLT[] dtols = new FLTFLT[1];
        dtols[0] = tols;
        din = new TDataType(startstop);
        dout = new TDataType(dtols);
        TLink tl = new TLink(dname,"KEYWORD.TOLERANCE",dout,din,TAccess.CA_READ);
        cc = tl.executeAndClose(timeout);
      }
      else
      {
        THistoryRecordStruct[] hrs = new THistoryRecordStruct[1];
        hrs[0] = new THistoryRecordStruct();
        din = new TDataType(property);
        dout = new TDataType(hrs);
        TLink tl = new TLink(dname,"HISTORIES",dout,din,TAccess.CA_READ);
        cc = tl.executeAndClose(timeout);
        if (cc == 0)
        {
          tols.f1val = hrs[0].getAbsoluteTolerance();
          tols.f2val = hrs[0].getPercentTolerance();
        }

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Examples of de.desy.tine.client.TLink

   * @return A string array containing a list of meta properties
   * as obtained from the given device server
   */
  public static String[] getMetaProperties(String context,String server,String device,String property)
  {
    TLink tl;
    TDataType dout;
    TDataType din;
    String tgt;
    int cc = 0,n = 0,i,j;
    NAME64[] properties;
    String[] strprops;


    tgt = new String("/" + context + "/" + server + "/" + device);
    try
    {
      TPropertyQuery[] pq = getStockPropertyInformation(context,server,device,"METAPROPS");
      if (pq != null) {
        n = pq[0].prpSize;
      }
    }
    catch (Exception e)
    {
      return null;
    }
    if (n <= 0) return null;
    if (n*32 > maxQueryBufferSize) n = maxQueryBufferSize/32;
    properties = new NAME64[n];
    for (i=0; i<n; i++) properties[i] = new NAME64();
    dout = new TDataType(properties);
    if (property != null) din = new TDataType(property); else din = null;
    properties_have_query_function = false;
    tl = new TLink(tgt,"METAPROPS",dout,din,TAccess.CA_READ);
    cc = tl.execute(TLink.defaultTimeout,true);
    if ((cc & TErrorList.CE_SENDDATA) == TErrorList.CE_SENDDATA)
    {
      if ((cc & TErrorList.has_query_function) == TErrorList.has_query_function)
      {
        properties_have_query_function = true;
      }
      cc = 0;
    }
    tl.close();
    if (cc == 0)
    {
      for (i=0,n=0; i<properties.length; i++) if (properties[i].name.length() > 0) n++;
      strprops = new String[n];
      for (i=0,j=0; j<n && i<properties.length; i++) 
      {
        if (properties[i].name.length() == 0) continue;
        strprops[j++] = properties[i].name;
      }
      return strprops;
    }
    else if (cc != TErrorList.link_not_open)
    {
      if (lastQueriedContext == context && lastQueriedServer == server &&
          lastQueriedDevice == device && lastQueriedServer != null)
      {
        cc = 0;
      }
      else
      {
        hLegacyByteBlob = new byte[n * PropertyQuery.sizeInBytes];
        dout = new TDataType(hLegacyByteBlob,"");
        tl = new TLink(tgt,"METAPROPS",dout,din,TAccess.CA_READ);
        cc = tl.execute(TLink.defaultTimeout,false);
        tl.close();
      }
      if (cc == 0)
      {
        lastQueriedContext = context;
        lastQueriedServer = server;

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Examples of de.desy.tine.client.TLink

    else
    {
      isActive = null;
      dout = new TDataType(data);
    }
    TLink tl = new TLink(dname,"RECORD.CMTS",dout,din,TAccess.CA_READ);
    int cc = tl.executeAndClose(timeout);
    if (cc != 0) return -cc;
    int n = dout.getCompletionLength();
    if (isActive != null)
    {
      for (int i=0; i<n; i++)

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Examples of de.desy.tine.client.TLink

    char[] cmt = new char[1024];
    dout = new TDataType(cmt);


    String dname = new String("/"+context+"/HISTORY/"+property+"@"+(int)target);


    TLink tl = new TLink(dname,"RECORD.CMT",dout,null,TAccess.CA_READ);
    int cc = tl.executeAndClose(timeout);
    if (cc != 0) return cc;
    int len = dout.getCompletionLength();
    data[0] = new String(cmt,0,len);
    return 0;
  }

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Examples of de.desy.tine.client.TLink

      din = new TDataType(text.toCharArray());
    }
    String keepString = keepAlive ? "[KEEPALIVE]" : "";
    String dname = new String("/"+context+"/HISTORY/"+property+"@"+(int)targetTime+keepString);


    TLink tl = new TLink(dname,"RECORD.CMT",null,din,TAccess.CA_WRITE);
    return tl.executeAndClose(timeout);
  }

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Examples of de.desy.tine.client.TLink

    if (!isCentralArchiveServer(server))
    { // not a call to a central archive server
      if (!isArchiveQueryProperty(property))
        pname = pname + ".HIST"; // meta extension not given, try this ...
    }
    TLink tl = new TLink(dname,pname,dout,din,TAccess.CA_READ);
    cc = tl.execute(timeout, true);
    tl.close();
    if (cc != 0 && isCentralArchiver(server))
    { // special 2nd chance !
      if (isArchiveQueryProperty(property))
      {
        pname = getQueryPropertyRoot(property) + ".ARCH";
      }
      else
      {
        pname = new String(property) + ".ARCH";
      }
      tl = new TLink(dname,pname,dout,din,TAccess.CA_READ);
      cc = tl.execute(timeout, true);
      tl.close();
    }
    return cc == 0 ? dout.getCompletionLength() : -cc;
  }

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Examples of de.desy.tine.client.TLink

  {
    DeviceNamesQueryParams dnqp = getDeviceNamesQueryProperty(context,server,property,null,timeout);
    if (dnqp == null) return null;
    int n = dnqp.size;


    TLink tl;
    TDataType dout;
    int cc = 0,i,j;
    String tmp;
    NAME16[] devices;
    String[] strdevs;


    //if (n*16 > maxQueryBufferSize) n = maxQueryBufferSize/16;
    devices = new NAME16[n];
    for (i=0; i<n; i++) devices[i] = new NAME16();
    if (devices.length == 0) return null;
    if (n == 1)
    { // server claimed not to have device names ?
      devices[0].name = "#0"; 
    }
    dout = new TDataType(devices);
    tl = new TLink(dnqp.target,dnqp.property,dout,null,TAccess.CA_READ);
    cc = tl.execute(timeout,true);
    tl.close();
    
    if ((cc & TErrorList.CE_SENDDATA) == TErrorList.CE_SENDDATA)
    {
      if ((cc & TErrorList.has_query_function) == TErrorList.has_query_function)
      {

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Examples of de.desy.tine.client.TLink

        ntries = 2;
      }
    }
    for (int i=0; i<ntries; i++)
    {
      TLink tl = new TLink(dname,pname[i],dout,din,TAccess.CA_READ);
      cc = tl.execute(2000, true);
      targetTime[0] = tl.getLastDataTimeStamp();
      tl.close();
      if (cc == 0 && dout.getCompletionLength() > 0) break;
    }
    return cc;
  }

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