[libgovirt] host: Introduce ovirt_host_get_cluster()

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

commit b2c823fa672ecc7793df9fb745b590bee299a41c
Author: Eduardo Lima (Etrunko) <etrunko redhat com>
Date:   Thu Jul 13 17:44:13 2017 -0300

    host: Introduce ovirt_host_get_cluster()
    
    Following the same principle as previous commits, this functions can be
    used to retrieve the cluster that includes this host.
    
    Signed-off-by: Eduardo Lima (Etrunko) <etrunko redhat com>

 govirt/govirt.sym   |    1 +
 govirt/ovirt-host.c |   35 ++++++++++++++++++++++++++++++++++-
 govirt/ovirt-host.h |    1 +
 3 files changed, 36 insertions(+), 1 deletions(-)
---
diff --git a/govirt/govirt.sym b/govirt/govirt.sym
index 66f334a..99774d9 100644
--- a/govirt/govirt.sym
+++ b/govirt/govirt.sym
@@ -132,6 +132,7 @@ GOVIRT_0.4.0 {
         ovirt_data_center_get_type;
         ovirt_data_center_new;
 
+        ovirt_host_get_cluster;
         ovirt_host_get_type;
         ovirt_host_get_vms;
         ovirt_host_new;
diff --git a/govirt/ovirt-host.c b/govirt/ovirt-host.c
index 2df2a64..191b360 100644
--- a/govirt/ovirt-host.c
+++ b/govirt/ovirt-host.c
@@ -42,6 +42,19 @@ enum {
     PROP_CLUSTER_ID,
 };
 
+
+static const char *get_cluster_href(OvirtHost *host)
+{
+    if (host->priv->cluster_href == NULL &&
+        host->priv->cluster_id != NULL) {
+        host->priv->cluster_href = g_strdup_printf("%s/%s",
+                                                   "/ovirt-engine/api/clusters",
+                                                   host->priv->cluster_id);
+    }
+
+    return host->priv->cluster_href;
+}
+
 static void ovirt_host_get_property(GObject *object,
                                     guint prop_id,
                                     GValue *value,
@@ -51,7 +64,7 @@ static void ovirt_host_get_property(GObject *object,
 
     switch (prop_id) {
     case PROP_CLUSTER_HREF:
-        g_value_set_string(value, host->priv->cluster_href);
+        g_value_set_string(value, get_cluster_href(host));
         break;
     case PROP_CLUSTER_ID:
         g_value_set_string(value, host->priv->cluster_id);
@@ -212,3 +225,23 @@ OvirtCollection *ovirt_host_get_vms(OvirtHost *host)
 
     return host->priv->vms;
 }
+
+
+/**
+ * ovirt_host_get_cluster:
+ * @host: a #OvirtHost
+ *
+ * Gets a #OvirtCluster representing the cluster the host belongs
+ * to. This method does not initiate any network activity, the remote host must
+ * be then be fetched using ovirt_resource_refresh() or
+ * ovirt_resource_refresh_async().
+ *
+ * Return value: (transfer full): a #OvirtCluster representing cluster the @host
+ * belongs to.
+ */
+OvirtCluster *ovirt_host_get_cluster(OvirtHost *host)
+{
+    g_return_val_if_fail(OVIRT_IS_HOST(host), NULL);
+    g_return_val_if_fail(host->priv->cluster_id != NULL, NULL);
+    return ovirt_cluster_new_from_id(host->priv->cluster_id, get_cluster_href(host));
+}
diff --git a/govirt/ovirt-host.h b/govirt/ovirt-host.h
index 91441f6..cdf702c 100644
--- a/govirt/ovirt-host.h
+++ b/govirt/ovirt-host.h
@@ -60,6 +60,7 @@ GType ovirt_host_get_type(void);
 
 OvirtHost *ovirt_host_new(void);
 OvirtCollection *ovirt_host_get_vms(OvirtHost *host);
+OvirtCluster *ovirt_host_get_cluster(OvirtHost *host);
 
 G_END_DECLS