[libgovirt] cluster: Introduce ovirt_cluster_get_data_center()

[Eduardo de Barros Lima <eblima src gnome org>]

commit 12397ea73bd7c150dc7950a24c1575441d2d084e
Author: Eduardo Lima (Etrunko) <etrunko redhat com>
Date:   Thu Jul 13 17:49:36 2017 -0300

    cluster: Introduce ovirt_cluster_get_data_center()
    
    This function can be used to retrieve the data center associated with
    the cluster.
    
    Signed-off-by: Eduardo Lima (Etrunko) <etrunko redhat com>

 govirt/govirt.sym      |    1 +
 govirt/ovirt-cluster.c |   33 ++++++++++++++++++++++++++++++++-
 govirt/ovirt-cluster.h |    1 +
 3 files changed, 34 insertions(+), 1 deletions(-)
---
diff --git a/govirt/govirt.sym b/govirt/govirt.sym
index 99774d9..0d488e6 100644
--- a/govirt/govirt.sym
+++ b/govirt/govirt.sym
@@ -123,6 +123,7 @@ GOVIRT_0.4.0 {
         ovirt_api_search_vms;
         ovirt_api_search_vm_pools;
 
+        ovirt_cluster_get_data_center;
         ovirt_cluster_get_type;
         ovirt_cluster_get_hosts;
         ovirt_cluster_new;
diff --git a/govirt/ovirt-cluster.c b/govirt/ovirt-cluster.c
index 83b0fa1..4aaf6b1 100644
--- a/govirt/ovirt-cluster.c
+++ b/govirt/ovirt-cluster.c
@@ -42,6 +42,18 @@ enum {
     PROP_DATA_CENTER_ID,
 };
 
+static const char *get_data_center_href(OvirtCluster *cluster)
+{
+    if (cluster->priv->data_center_href == NULL &&
+        cluster->priv->data_center_id != NULL) {
+        cluster->priv->data_center_href = g_strdup_printf("%s/%s",
+                                                          "/ovirt-engine/api/data_centers",
+                                                          cluster->priv->data_center_id);
+    }
+
+    return cluster->priv->data_center_href;
+}
+
 static void ovirt_cluster_get_property(GObject *object,
                                        guint prop_id,
                                        GValue *value,
@@ -51,7 +63,7 @@ static void ovirt_cluster_get_property(GObject *object,
 
     switch (prop_id) {
     case PROP_DATA_CENTER_HREF:
-        g_value_set_string(value, cluster->priv->data_center_href);
+        g_value_set_string(value, get_data_center_href(cluster));
         break;
     case PROP_DATA_CENTER_ID:
         g_value_set_string(value, cluster->priv->data_center_id);
@@ -213,3 +225,22 @@ OvirtCollection *ovirt_cluster_get_hosts(OvirtCluster *cluster)
     return cluster->priv->hosts;
 }
 
+
+/**
+ * ovirt_cluster_get_data_center:
+ * @cluster: a #OvirtCluster
+ *
+ * Gets a #OvirtCluster representing the data center the cluster belongs
+ * to. This method does not initiate any network activity, the remote data center must
+ * be then be fetched using ovirt_resource_refresh() or
+ * ovirt_resource_refresh_async().
+ *
+ * Return value: (transfer full): a #OvirtDataCenter representing data center
+ * the @host belongs to.
+ */
+OvirtDataCenter *ovirt_cluster_get_data_center(OvirtCluster *cluster)
+{
+    g_return_val_if_fail(OVIRT_IS_CLUSTER(cluster), NULL);
+    g_return_val_if_fail(cluster->priv->data_center_id != NULL, NULL);
+    return ovirt_data_center_new_from_id(cluster->priv->data_center_id, get_data_center_href(cluster));
+}
diff --git a/govirt/ovirt-cluster.h b/govirt/ovirt-cluster.h
index 9505e8c..cdd54b7 100644
--- a/govirt/ovirt-cluster.h
+++ b/govirt/ovirt-cluster.h
@@ -60,6 +60,7 @@ GType ovirt_cluster_get_type(void);
 
 OvirtCluster *ovirt_cluster_new(void);
 OvirtCollection *ovirt_cluster_get_hosts(OvirtCluster *cluster);
+OvirtDataCenter *ovirt_cluster_get_data_center(OvirtCluster *cluster);
 
 G_END_DECLS