X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=src%2Fbackend.c;h=31c8ecd458ce162466bbe45e89b44e331087948a;hb=2392a801e9b0375d6628911270bf764b1300d880;hp=f8bcf352e6de21fcdeca0a489191d96e67d1b050;hpb=98b34debbadc6b126a2c3bb817c0d72770e55e89;p=cascardo%2Fatompub.git

diff --git a/src/backend.c b/src/backend.c
index f8bcf35..31c8ecd 100644
--- a/src/backend.c
+++ b/src/backend.c
@@ -18,11 +18,15 @@
 
 
 #include <atompub/atom.h>
+
 #include <glib.h>
 
+#include <string.h>
+
 struct _atom_backend
 {
-  Atom * (*retrieve_resource) (AtomCtx *, IRI *);
+  AtomEntry * (*retrieve_entry) (AtomCtx *, IRI *);
+  void (*enumerate_entries) (AtomCtx *, AtomEntry ***, size_t *);
 };
 
 AtomBackend *
@@ -30,7 +34,8 @@ atom_backend_new ()
 {
   AtomBackend *backend;
   backend = g_slice_new (AtomBackend);
-  backend->retrieve_resource = NULL;
+  backend->retrieve_entry = NULL;
+  backend->enumerate_entries = NULL;
   return backend;
 }
 
@@ -41,19 +46,82 @@ atom_backend_delete (AtomBackend *backend)
 }
 
 void
-atom_backend_retrieve_resource_set (AtomBackend *backend,
-				    Atom *retrieve_resource (AtomCtx *,
-							     IRI *))
+atom_backend_retrieve_entry_set (AtomBackend *backend,
+				 AtomEntry *retrieve_entry (AtomCtx *,
+							    IRI *))
 {
-  backend->retrieve_resource = retrieve_resource;
+  backend->retrieve_entry = retrieve_entry;
 }
 
-Atom *
-atom_retrieve_resource (AtomCtx *ctx, IRI *iri)
+void
+atom_backend_enumerate_entries_set (AtomBackend *backend,
+				    void enumerate_entries (AtomCtx *,
+							    AtomEntry ***, size_t*))
+{
+  backend->enumerate_entries = enumerate_entries;
+}
+
+AtomEntry *
+atom_retrieve_entry (AtomCtx *ctx, IRI *iri)
 {
   AtomBackend *backend;
   backend = atom_backend (ctx);
-  if (backend && backend->retrieve_resource)
-    return backend->retrieve_resource (ctx, iri);
+  if (backend && backend->retrieve_entry)
+    return backend->retrieve_entry (ctx, iri);
   return NULL;
 }
+
+void
+atom_backend_enumerate_entries (AtomCtx *ctx, AtomEntry *** entries, size_t *len)
+{
+  AtomBackend *backend;
+  backend = atom_backend (ctx);
+  if (backend && backend->enumerate_entries)
+    {
+      backend->enumerate_entries (ctx, entries, len);
+      return;
+    }
+  if (entries)
+    *entries = NULL;
+  if (len)
+    *len = 0;
+}
+
+AtomFeed *
+atom_retrieve_feed (AtomCtx *ctx)
+{
+  AtomFeed *feed;
+  AtomEntry **entries;
+  size_t len;
+  atom_backend_enumerate_entries (ctx, &entries, &len);
+  feed = atom_feed_new ();
+  atom_feed_entry_append_array (feed, entries, len);
+  return feed;
+}
+
+AtomResource *
+atom_retrieve_resource (AtomCtx *ctx, IRI *iri)
+{
+  AtomResource *res;
+  char * path;
+  path = iri_get_path (iri);
+  if (!strcmp (path, "/"))
+    {
+      AtomFeed *feed;
+      feed = atom_retrieve_feed (ctx);
+      if (feed == NULL)
+        return NULL;
+      res = atom_resource_new_from_feed (feed);
+      atom_feed_delete (feed);
+    }
+  else
+    {
+      AtomEntry *entry;
+      entry = atom_retrieve_entry (ctx, iri);
+      if (entry == NULL)
+        return NULL;
+      res = atom_resource_new_from_entry (entry);
+      atom_entry_delete (entry);
+    }
+  return res;
+}