From 2b1b6a95f34885398b1b0db432ec4a2a85080449 Mon Sep 17 00:00:00 2001
From: Andrea Zagli <azagli@libero.it>
Date: Sun, 13 Mar 2016 17:35:42 +0100
Subject: [PATCH] Started function ZakGFlowModel::start.

---
 .gitignore        |  3 ++-
 src/instance.c    | 15 +++++++++++++++
 src/instance.h    |  1 +
 src/model.c       | 39 +++++++++++++++++++++++++++++++++++++++
 tests/Makefile.am |  3 ++-
 tests/instance.c  | 39 +++++++++++++++++++++++++++++++++++++++
 6 files changed, 98 insertions(+), 2 deletions(-)
 create mode 100644 tests/instance.c

diff --git a/.gitignore b/.gitignore
index 235be29..98cdcbf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -52,4 +52,5 @@ Rules-quot
 *.exe
 *.csv
 *.bpmn
-tests/model
\ No newline at end of file
+tests/model
+tests/instance
\ No newline at end of file
diff --git a/src/instance.c b/src/instance.c
index 80bea80..830f3e6 100644
--- a/src/instance.c
+++ b/src/instance.c
@@ -48,6 +48,7 @@ static void zak_gflow_instance_finalize (GObject *gobject);
 
 typedef struct
 	{
+		gpointer none;
 	} ZakGFlowInstancePrivate;
 
 G_DEFINE_TYPE_WITH_PRIVATE (ZakGFlowInstance, zak_gflow_instance, G_TYPE_OBJECT)
@@ -70,6 +71,20 @@ zak_gflow_instance_init (ZakGFlowInstance *zak_gflow_instance)
 
 }
 
+/*+
+ * zak_gflow_instance_new:
+ *
+ */
+ZakGFlowInstance
+*zak_gflow_instance_new (void)
+{
+	ZakGFlowInstance *instance;
+
+	instance = ZAK_GFLOW_INSTANCE (g_object_new (zak_gflow_instance_get_type (), NULL));
+
+	return instance;
+}
+
 /* PRIVATE */
 static void
 zak_gflow_instance_set_property (GObject *object,
diff --git a/src/instance.h b/src/instance.h
index fc8a674..3896fa9 100644
--- a/src/instance.h
+++ b/src/instance.h
@@ -37,6 +37,7 @@ struct _ZakGFlowInstanceClass
 };
 
 
+ZakGFlowInstance *zak_gflow_instance_new (void);
 
 
 G_END_DECLS
diff --git a/src/model.c b/src/model.c
index 3e4cc49..06f497f 100644
--- a/src/model.c
+++ b/src/model.c
@@ -249,6 +249,45 @@ GPtrArray
 	return ar;
 }
 
+/**
+ * zak_gflow_model_start:
+ * @model:
+ * @model_id:
+ *
+ */
+ZakGFlowInstance
+*zak_gflow_model_start (ZakGFlowModel *model, const gchar *model_id)
+{
+	ZakGFlowInstance *instance;
+
+	ZakGFlowModelPrivate *priv;
+
+	xmlNodeSet *xnodeset;
+
+	gchar *expr;
+
+	instance = NULL;
+
+	priv = zak_gflow_model_get_instance_private (model);
+
+	expr = g_strdup_printf ("child::bpmn:process[@id='%s']", model_id);
+	xnodeset = zak_gflow_commons_xml_search (priv->xpcontext, priv->xroot, (const xmlChar *)expr);
+	g_free (expr);
+	if (xnodeset != NULL
+		&& xnodeset->nodeNr > 0)
+		{
+			instance = zak_gflow_instance_new ();
+		}
+	else
+		{
+			g_warning ("No process with id <%s>.", model_id);
+		}
+
+	g_free (expr);
+
+	return instance;
+}
+
 /* PRIVATE */
 static void
 zak_gflow_model_set_property (GObject *object,
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 431dda1..0e510da 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -9,7 +9,8 @@ LIBS = $(ZAKGFLOW_LIBS) \
 LDADD = $(top_builddir)/src/libzakgflow.la
 
 noinst_PROGRAMS = \
-                  model
+                  model \
+                  instance
 
 EXTRADIST = \
             diagram.bpmn
diff --git a/tests/instance.c b/tests/instance.c
new file mode 100644
index 0000000..431f813
--- /dev/null
+++ b/tests/instance.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2016 Andrea Zagli <azagli@libero.it>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include "model.h"
+#include "instance.h"
+
+int
+main (int argc, char *argv[])
+{
+	ZakGFlowModel *model;
+	ZakGFlowInstance *instance;
+
+	model = zak_gflow_model_new_from_file (argv[1]);
+	if (model == NULL)
+		{
+			g_warning ("No model loaded from xml file <%s>.", argv[1]);
+		}
+	else
+		{
+			instance = zak_gflow_model_start (model, argv[2]);
+		}
+
+	return 0;
+}
-- 
2.49.0