From 166b913990168de1b26eb1d7d2a8b5a2f1aacf41 Mon Sep 17 00:00:00 2001
From: Dennis Heimbigner <dennis.heimbigner@ieee.org>
Date: Fri, 3 Jan 2025 19:56:53 -0700
Subject: [PATCH] missing1

---
 libnczarr/zmetadata0.c | 147 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 147 insertions(+)
 create mode 100644 libnczarr/zmetadata0.c

diff --git a/libnczarr/zmetadata0.c b/libnczarr/zmetadata0.c
new file mode 100644
index 0000000000..6637077afa
--- /dev/null
+++ b/libnczarr/zmetadata0.c
@@ -0,0 +1,147 @@
+/*********************************************************************
+ *   Copyright 2018, UCAR/Unidata
+ *   See netcdf/COPYRIGHT file for copying and redistribution conditions.
+ *********************************************************************/
+
+#include "zincludes.h"
+
+/**************************************************/
+
+extern int NCZF0_initialize(void);
+extern int NCZF0_finalize(void);
+
+static int list_nodes(NC_FILE_INFO_T*, const char* prefix, struct NClist* matches);
+static int listall_nodes(NC_FILE_INFO_T*, const char* prefix, struct NClist* matches);
+static int exists_nodes(NC_FILE_INFO_T* file, const char* prefix);
+
+static int fetch_json_content(NC_FILE_INFO_T* file, NCZMD_MetadataType zarr_obj_type, const char *key, NCjson **jobj);
+static int update_json_content(NC_FILE_INFO_T* file, NCZMD_MetadataType zobj_t, const char *prefix, const NCjson *jobj);
+
+static int open_noop(NC_FILE_INFO_T* file);
+static int create_noop(NC_FILE_INFO_T* file);
+static int close_noop(NC_FILE_INFO_T* file);
+static int consolidate_noop(NC_FILE_INFO_T*);
+
+/**************************************************/
+
+static const NCZ_Metadata_Dispatcher NCZ_md_table = { /* Common to V2 and V3 */
+        ZARRFORMAT2,
+        NCZ_METADATA_VERSION,  /* Version of the dispatch table */
+        ZARR_NOT_CONSOLIDATED, /* Flags*/
+	.list = list_nodes,
+	.listall = listall_nodes,
+	.exists = exists_nodes,
+	.open = open_noop,
+	.create = create_noop,
+	.close = close_noop,
+	.consolidate = consolidate_noop,
+        .fetch_json_content = fetch_json_content,
+        .update_json_content = update_json_content,
+};
+const NCZ_Metadata_Dispatcher *NCZ_metadata_handler= &NCZ_md_table;
+
+/******************************************************/
+
+int
+NCZMD0_initialize(void)
+{
+    return NC_NOERR;
+}
+
+int
+NCZMD0_finalize(void)
+{
+    return NC_NOERR;
+}
+
+/*///////////////////////////////////////////////////
+//  .zmetadata dispatch functions
+///////////////////////////////////////////////////*/
+
+static int
+list_nodes(NC_FILE_INFO_T* file, const char* prefix, NClist* matches)
+{
+    int stat = NC_NOERR;
+    NCZ_FILE_INFO_T* zfile = (NCZ_FILE_INFO_T*)file->format_file_info;
+    if((stat = nczmap_list(zfile->map,prefix,matches))) goto done;
+done:
+    return stat;
+}
+
+static int
+listall_nodes(NC_FILE_INFO_T* file, const char* prefix, NClist* matches)
+{
+    int stat = NC_NOERR;
+    NCZ_FILE_INFO_T* zfile = (NCZ_FILE_INFO_T*)file->format_file_info;
+    if((stat = nczmap_listall(zfile->map,prefix,matches))) goto done;
+done:
+    return stat;
+}
+
+static int
+exists_nodes(NC_FILE_INFO_T* file, const char* prefix)
+{
+    int stat = NC_NOERR;
+    NCZ_FILE_INFO_T* zfile = (NCZ_FILE_INFO_T*)file->format_file_info;
+    if((stat = nczmap_exists(zfile->map,prefix))) goto done;
+done:
+    return stat;
+}
+
+static int
+fetch_json_content(NC_FILE_INFO_T* file, NCZMD_MetadataType zobj_t, const char *key, NCjson **jobjp)
+{
+    int stat = NC_NOERR;
+    NCZ_FILE_INFO_T* zfile = (NCZ_FILE_INFO_T*)file->format_file_info;
+    NCjson* jobj = NULL;
+
+    NC_UNUSED(zobj_t);
+    if((stat = NCZ_downloadjson(zfile->map, key, &jobj))) goto done;
+    if(jobjp) {*jobjp = jobj; jobj = NULL;}
+done:
+    NCJreclaim(jobj);
+    return stat;
+}
+
+static int
+update_json_content(NC_FILE_INFO_T* file, NCZMD_MetadataType zobj_t, const char* key, const NCjson *jobj)
+{
+    int stat = NC_NOERR;
+    NCZ_FILE_INFO_T* zfile = (NCZ_FILE_INFO_T*)file->format_file_info;
+
+    NC_UNUSED(zobj_t);
+    if((stat = NCZ_uploadjson(zfile->map, key, jobj))) goto done;
+    zfile->metadata_handler.dirty = 0; /* after writing */
+    
+done:
+    return stat;
+}
+
+
+static int
+open_noop(NC_FILE_INFO_T* file)
+{
+    NC_UNUSED(file);
+    return NC_NOERR;
+}
+
+static int
+create_noop(NC_FILE_INFO_T* file)
+{
+    NC_UNUSED(file);
+    return NC_NOERR;
+}
+
+static int
+close_noop(NC_FILE_INFO_T* file)
+{
+    NC_UNUSED(file);
+    return NC_NOERR;
+}
+
+static int
+consolidate_noop(NC_FILE_INFO_T* file)
+{
+    NC_UNUSED(file);
+    return NC_NOERR;
+}