From: Andrea Zagli Date: Sun, 13 Mar 2016 15:47:25 +0000 (+0100) Subject: Added function ZakGFlowModel::list_processes. X-Git-Url: https://saetta.ns0.it/gitweb?a=commitdiff_plain;h=3bda15f90fa056ca06ec69829efc9fca2e158a86;p=libzakgflow Added function ZakGFlowModel::list_processes. Started parsing of xml definition. --- diff --git a/.gitignore b/.gitignore index eb59166..235be29 100644 --- a/.gitignore +++ b/.gitignore @@ -51,3 +51,5 @@ intltool-* Rules-quot *.exe *.csv +*.bpmn +tests/model \ No newline at end of file diff --git a/src/commons.c b/src/commons.c index 9503714..ef86469 100644 --- a/src/commons.c +++ b/src/commons.c @@ -27,3 +27,24 @@ #endif #include "commons.h" + +xmlNodeSet +*zak_gflow_commons_xml_search (xmlXPathContext *xpcontext, xmlNode *xnode_start, const xmlChar *xpath_expr) +{ + xmlXPathObject *xpresult; + xmlNodeSet *xnodeset; + + xpcontext->node = xnode_start; + xpresult = xmlXPathEvalExpression (xpath_expr, xpcontext); + if (xpresult != NULL + && !xmlXPathNodeSetIsEmpty (xpresult->nodesetval)) + { + xnodeset = xpresult->nodesetval; + } + else + { + xnodeset = NULL; + } + + return xnodeset; +} diff --git a/src/commons.h b/src/commons.h index 1c52810..cfda9f5 100644 --- a/src/commons.h +++ b/src/commons.h @@ -21,10 +21,13 @@ #include +#include + G_BEGIN_DECLS +xmlNodeSet *zak_gflow_commons_xml_search (xmlXPathContext *xpcontext, xmlNode *xnode_start, const xmlChar *xpath_expr); G_END_DECLS diff --git a/src/model.c b/src/model.c index e8cff4a..3e4cc49 100644 --- a/src/model.c +++ b/src/model.c @@ -24,13 +24,15 @@ #include #include - -#include "model.h" +#include #ifdef G_OS_WIN32 #include #endif +#include "commons.h" +#include "model.h" + static void zak_gflow_model_class_init (ZakGFlowModelClass *class); static void zak_gflow_model_init (ZakGFlowModel *zak_gflow_model); @@ -48,6 +50,9 @@ static void zak_gflow_model_finalize (GObject *gobject); typedef struct { + xmlDoc *xdoc; + xmlNode *xroot; + xmlXPathContext *xpcontext; } ZakGFlowModelPrivate; G_DEFINE_TYPE_WITH_PRIVATE (ZakGFlowModel, zak_gflow_model, G_TYPE_OBJECT) @@ -137,12 +142,54 @@ ZakGFlowModel ZakGFlowModel *model; ZakGFlowModelPrivate *priv; + xmlNode *root; + + xmlNs *ns; + gchar *prefix; + g_return_val_if_fail (xmldoc != NULL, NULL); model = ZAK_GFLOW_MODEL (g_object_new (zak_gflow_model_get_type (), NULL)); priv = zak_gflow_model_get_instance_private (model); + root = xmlDocGetRootElement (xmldoc); + if (root == NULL + || xmlStrcmp (root->name, (const xmlChar *)"definitions")) + { + g_warning ("No valid root element."); + } + else + { + priv->xdoc = xmldoc; + priv->xroot = root; + + /* registering namespaces */ + priv->xpcontext = xmlXPathNewContext (priv->xdoc); + + ns = priv->xroot->nsDef; + while (ns) + { + if (ns->prefix == NULL) + { + prefix = g_strdup ("bpmn"); + } + else + { + prefix = g_strdup ((gchar *)ns->prefix); + } + + if (xmlXPathRegisterNs (priv->xpcontext, (const xmlChar *)prefix, ns->href) != 0) + { + g_warning ("Error on registering namespace <%s>.", prefix); + } + + g_free (prefix); + + ns = ns->next; + } + } + return model; } @@ -152,7 +199,7 @@ ZakGFlowModel * */ ZakGFlowModel -*zak_gflow_model_load_from_file (const gchar *filename) +*zak_gflow_model_new_from_file (const gchar *filename) { ZakGFlowModel *model; @@ -169,6 +216,39 @@ ZakGFlowModel return model; } +/** + * zak_gflow_model_list_processes: + * @model: + * + */ +GPtrArray +*zak_gflow_model_list_processes (ZakGFlowModel *model) +{ + GPtrArray *ar; + ZakGFlowModelPrivate *priv; + + xmlNodeSet *xnodeset; + + gint i; + + ar = NULL; + + priv = zak_gflow_model_get_instance_private (model); + + xnodeset = zak_gflow_commons_xml_search (priv->xpcontext, priv->xroot, (const xmlChar *)"child::bpmn:process"); + if (xnodeset != NULL + && xnodeset->nodeNr > 0) + { + ar = g_ptr_array_new (); + for (i = 0; i < xnodeset->nodeNr; i++) + { + g_ptr_array_add (ar, g_strdup ((gchar *)xmlGetProp (xnodeset->nodeTab[i], (const xmlChar *)"id"))); + } + } + + return ar; +} + /* PRIVATE */ static void zak_gflow_model_set_property (GObject *object, diff --git a/src/model.h b/src/model.h index 7bf009d..a3c7af1 100644 --- a/src/model.h +++ b/src/model.h @@ -43,6 +43,8 @@ struct _ZakGFlowModelClass ZakGFlowModel *zak_gflow_model_new_from_xml (xmlDoc *xmldoc); ZakGFlowModel *zak_gflow_model_new_from_file (const gchar *filename); +GPtrArray *zak_gflow_model_list_processes (ZakGFlowModel *model); + ZakGFlowInstance *zak_gflow_model_start (ZakGFlowModel *model, const gchar *model_id); diff --git a/tests/Makefile.am b/tests/Makefile.am index e1b5b22..431dda1 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -8,4 +8,8 @@ LIBS = $(ZAKGFLOW_LIBS) \ LDADD = $(top_builddir)/src/libzakgflow.la -noinst_PROGRAMS = +noinst_PROGRAMS = \ + model + +EXTRADIST = \ + diagram.bpmn diff --git a/tests/model.c b/tests/model.c new file mode 100644 index 0000000..c87eca1 --- /dev/null +++ b/tests/model.c @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2016 Andrea Zagli + * + * 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" + +int +main (int argc, char *argv[]) +{ + ZakGFlowModel *model; + GPtrArray *processes; + gint i; + + model = zak_gflow_model_new_from_file (argv[1]); + if (model == NULL) + { + g_warning ("No model loaded from xml file <%s>.", argv[1]); + } + else + { + processes = zak_gflow_model_list_processes (model); + if (processes != NULL + && processes->len > 0) + { + printf ("PROCESSES\n"); + for (i = 0; i < processes->len; i++) + { + printf (" - %s", (gchar *)g_ptr_array_index (processes, i)); + } + } + else + { + g_warning ("No processes in xml file."); + } + } + + return 0; +}