Add config plugin class.

fairmq/SuboptParser.cxx

@@ -0,0 +1,120 @@
+/********************************************************************************
+ *    Copyright (C) 2017 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH    *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public License (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
+
+/// @file   SuboptParser.cxx
+/// @author Matthias.Richter@scieq.net
+/// @since  2017-03-30
+/// @brief  Parser implementation for key-value subopt format
+
+#include <fairmq/SuboptParser.h>
+
+#include <boost/property_tree/ptree.hpp>
+#include <cstring>
+#include <utility> // make_pair
+
+using boost::property_tree::ptree;
+using namespace std;
+
+namespace fair
+{
+namespace mq
+{
+
+enum channelOptionKeyIds
+{
+    NAME = 0,       // name of the channel
+    TYPE,           // push, pull, publish, subscribe, etc
+    METHOD,         // bind or connect
+    ADDRESS,        // host, protocol and port address
+    TRANSPORT,      //
+    SNDBUFSIZE,     // size of the send queue
+    RCVBUFSIZE,     // size of the receive queue
+    SNDKERNELSIZE,
+    RCVKERNELSIZE,
+    LINGER,
+    RATELOGGING,    // logging rate
+    PORTRANGEMIN,
+    PORTRANGEMAX,
+    AUTOBIND,
+    NUMSOCKETS,
+    lastsocketkey
+};
+
+constexpr static const char* channelOptionKeys[] = {
+    /*[NAME]          = */ "name",
+    /*[TYPE]          = */ "type",
+    /*[METHOD]        = */ "method",
+    /*[ADDRESS]       = */ "address",
+    /*[TRANSPORT]     = */ "transport",
+    /*[SNDBUFSIZE]    = */ "sndBufSize",
+    /*[RCVBUFSIZE]    = */ "rcvBufSize",
+    /*[SNDKERNELSIZE] = */ "sndKernelSize",
+    /*[RCVKERNELSIZE] = */ "rcvKernelSize",
+    /*[LINGER]        = */ "linger",
+    /*[RATELOGGING]   = */ "rateLogging",
+    /*[PORTRANGEMIN]  = */ "portRangeMin",
+    /*[PORTRANGEMAX]  = */ "portRangeMax",
+    /*[AUTOBIND]      = */ "autoBind",
+    /*[NUMSOCKETS]    = */ "numSockets",
+    nullptr
+};
+
+Properties SuboptParser(const vector<string>& channelConfig, const string& deviceId)
+{
+    ptree pt;
+
+    ptree devicesArray;
+    ptree deviceProperties;
+
+    ptree channelsArray;
+
+    for (auto token : channelConfig) {
+        string channelName;
+        ptree channelProperties;
+
+        ptree socketsArray;
+
+        string argString(token);
+        char* subopts = &argString[0];
+        char* value = nullptr;
+        while (subopts && *subopts != 0 && *subopts != ' ') {
+            int subopt = getsubopt(&subopts, (char**)channelOptionKeys, &value);
+            if (subopt == NAME) {
+                channelName = value;
+                channelProperties.put("name", channelName);
+            } else if (subopt == ADDRESS) {
+                ptree socketProperties;
+                socketProperties.put(channelOptionKeys[subopt], value);
+                socketsArray.push_back(make_pair("", socketProperties));
+            } else if (subopt >= 0 && value != nullptr) {
+                channelProperties.put(channelOptionKeys[subopt], value);
+            }
+        }
+
+        if (channelName != "") {
+            channelProperties.add_child("sockets", socketsArray);
+        } else {
+            // TODO: what is the error policy here, should we abort?
+            LOG(error) << "missing channel name in argument of option --channel-config";
+        }
+
+        channelsArray.push_back(make_pair("", channelProperties));
+    }
+
+    deviceProperties.put("id", deviceId);
+    deviceProperties.add_child("channels", channelsArray);
+
+    devicesArray.push_back(make_pair("", deviceProperties));
+
+    pt.add_child("fairMQOptions.devices", devicesArray);
+
+    return PtreeParser(pt, deviceId);
+}
+
+}
+}