Add python binding for writing graph.

src/CMakeLists.txt

@@ -77,6 +77,7 @@ ADD_LIBRARY(${PYTHON_MODULE}
 	signal-base-py.cc
 	entity-py.cc
 	factory-py.cc
+	pool-py.cc
 	signal-caster-py.cc
 )
 

src/dynamic-graph-py.cc

@@ -51,10 +51,13 @@ namespace dynamicgraph {
     }
 
     namespace factory {
-      PyObject* getEntityClassList(PyObject* self, PyObject* args);
+      extern PyObject* getEntityClassList(PyObject* self, PyObject* args);
     }
     namespace signalCaster {
-      PyObject* getSignalTypeList(PyObject* self, PyObject* args);
+      extern PyObject* getSignalTypeList(PyObject* self, PyObject* args);
+    }
+    namespace pool {
+      extern PyObject* writeGraph (PyObject* self, PyObject* args);
     }
 
     PyObject* dgpyError;
@@ -198,6 +201,10 @@ static PyMethodDef dynamicGraphMethods[] = {
    dynamicgraph::python::signalCaster::getSignalTypeList,
    METH_VARARGS,
    "return the list of signal type names"},
+  {"writeGraph",
+   dynamicgraph::python::pool::writeGraph,
+   METH_VARARGS,
+   "Write the graph of entities in a filename."},
   {NULL, NULL, 0, NULL}        /* Sentinel */
 };
 

src/pool-py.cc

+// Copyright 2011, 2012, Florent Lamiraux, LAAS-CNRS.
+//
+// This file is part of dynamic-graph-python.
+// dynamic-graph-python is free software: you can redistribute it
+// and/or modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// dynamic-graph-python is distributed in the hope that it will be
+// useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Lesser Public License for more details.  You should
+// have received a copy of the GNU Lesser General Public License along
+// with dynamic-graph. If not, see <http://www.gnu.org/licenses/>.
+
+#include <Python.h>
+#include <dynamic-graph/pool.h>
+
+namespace dynamicgraph {
+  namespace python {
+
+    extern PyObject* dgpyError;
+    namespace pool {
+      PyObject* writeGraph (PyObject* /*self*/, PyObject* args)
+      {
+	char* filename;
+	if (!PyArg_ParseTuple(args, "s", &filename))
+	  return NULL;
+	try {
+	  PoolStorage::getInstance()->writeGraph (filename);
+	} catch (const std::exception& exc) {
+	  PyErr_SetString(dgpyError, exc.what());
+	  return NULL;
+	}
+	return Py_BuildValue ("");
+      }
+    } // python
+  } // dynamicgraph
+} // namespace pool