void delete_manifest(Manifest *manifest)
{
if(manifest != NULL)
{
delete_distribution_array(manifest->distribution_array);
delete_activation_array(manifest->activation_array);
delete_snapshots_array(manifest->snapshots_array);
delete_target_array(manifest->target_array);
g_free(manifest);
}
}
int restore(const gchar *manifest_file, const unsigned int max_concurrent_transfers, const int transfer_only, const int all, const gchar *old_manifest, const gchar *coordinator_profile_path, gchar *profile, const gboolean no_upgrade, const gchar *container_filter, const gchar *component_filter)
{
/* Generate a distribution array from the manifest file */
Manifest *manifest = open_provided_or_previous_manifest_file(manifest_file, coordinator_profile_path, profile, MANIFEST_SNAPSHOT_FLAG, container_filter, component_filter);
if(manifest == NULL)
{
g_print("[coordinator]: Error while opening manifest file!\n");
return 1;
}
else
{
int exit_status;
GPtrArray *snapshots_array;
gchar *old_manifest_file;
if(old_manifest == NULL)
old_manifest_file = determine_previous_manifest_file(coordinator_profile_path, profile);
else
old_manifest_file = g_strdup(old_manifest);
if(no_upgrade || old_manifest_file == NULL)
{
g_printerr("[coordinator]: Sending snapshots of all components...\n");
snapshots_array = manifest->snapshots_array;
}
else
{
GPtrArray *old_snapshots_array = create_snapshots_array(old_manifest_file, container_filter, component_filter);
g_printerr("[coordinator]: Snapshotting state of moved components...\n");
snapshots_array = subtract_snapshot_mappings(manifest->snapshots_array, old_snapshots_array);
delete_snapshots_array(old_snapshots_array);
}
if(send_snapshots(snapshots_array, manifest->target_array, max_concurrent_transfers, all) /* First, send the snapshots to the remote machines */
&& (transfer_only || restore_services(snapshots_array, manifest->target_array))) /* Then, restore them on the remote machines */
exit_status = 0;
else
exit_status = 1;
/* Cleanup */
g_free(old_manifest_file);
if(!no_upgrade && old_manifest_file != NULL)
g_ptr_array_free(snapshots_array, TRUE);
delete_manifest(manifest);
/* Return the exit status */
return exit_status;
}
}
GPtrArray *create_snapshots_array(const gchar *manifest_file, const gchar *container_filter, const gchar *component_filter)
{
xmlDocPtr doc;
xmlNodePtr node_root;
xmlXPathObjectPtr result;
GPtrArray *snapshots_array;
/* Parse the XML document */
if((doc = xmlParseFile(manifest_file)) == NULL)
{
g_printerr("Error with parsing the manifest XML file!\n");
xmlCleanupParser();
return NULL;
}
/* Retrieve root element */
node_root = xmlDocGetRootElement(doc);
if(node_root == NULL)
{
g_printerr("The distribution manifest XML file is empty!\n");
xmlFreeDoc(doc);
xmlCleanupParser();
return NULL;
}
/* Query the distribution elements */
result = executeXPathQuery(doc, "/manifest/snapshots/mapping");
/* Initialize snapshots array */
snapshots_array = g_ptr_array_new();
/* Iterate over all the distribution elements and add them to the array */
if(result)
{
xmlNodeSetPtr nodeset = result->nodesetval;
unsigned int i;
/* Iterate over all the mapping elements */
for(i = 0; i < nodeset->nodeNr; i++)
{
xmlNodePtr mapping_children = nodeset->nodeTab[i]->children;
gchar *component = NULL;
gchar *container = NULL;
gchar *target = NULL;
gchar *service = NULL;
gchar *type = NULL;
SnapshotMapping *mapping = (SnapshotMapping*)g_malloc(sizeof(SnapshotMapping));
/* Iterate over all the mapping item children (service,target,targetProperty,type,dependsOn elements) */
while(mapping_children != NULL)
{
if(xmlStrcmp(mapping_children->name, (xmlChar*) "component") == 0)
component = duplicate_node_text(mapping_children);
else if(xmlStrcmp(mapping_children->name, (xmlChar*) "container") == 0)
container = duplicate_node_text(mapping_children);
else if(xmlStrcmp(mapping_children->name, (xmlChar*) "target") == 0)
target = duplicate_node_text(mapping_children);
else if(xmlStrcmp(mapping_children->name, (xmlChar*) "service") == 0)
service = duplicate_node_text(mapping_children);
else if(xmlStrcmp(mapping_children->name, (xmlChar*) "type") == 0)
type = duplicate_node_text(mapping_children);
mapping_children = mapping_children->next;
}
mapping->component = component;
mapping->container = container;
mapping->target = target;
mapping->service = service;
mapping->type = type;
mapping->transferred = FALSE;
if(mapping_is_selected(mapping, container_filter, component_filter))
{
if(component == NULL || container == NULL || target == NULL || service == NULL || type == NULL)
{
/* Check if all mandatory properties have been provided */
g_printerr("A mandatory property seems to be missing. Have you provided a correct\n");
g_printerr("manifest file?\n");
delete_snapshots_array(snapshots_array);
snapshots_array = NULL;
break;
}
else
g_ptr_array_add(snapshots_array, mapping); /* Add the mapping to the array */
}
else
delete_snapshot_mapping(mapping);
}
xmlXPathFreeObject(result);
}
/* Cleanup */
xmlFreeDoc(doc);
xmlCleanupParser();
/* Sort the snapshots array */
if(snapshots_array != NULL)
g_ptr_array_sort(snapshots_array, (GCompareFunc)compare_snapshot_mapping);
/* Return the snapshots array */
return snapshots_array;
}