lsup_repo/src/core.c

#include "core.h"


bool LSR_is_init = false;

/*
 * Initial namespace map.
 */
static char *nsm_str[][2] = {
    {"ebucore", "http://www.ebu.ch/metadata/ontologies/ebucore/ebucore#"},
    {"rsrc", LSR_RSRC_PFX},
    {"lsup", "http://data.knowledgetx.com/onto/lsup#"},
    {"premis", "http://www.loc.gov/premis/rdf/v1#"},
    {NULL, NULL}
};

/*
 * Repo-managed predicates.
 */
static char *mgd_pred_str[] = {
    "ebucore:hasMimeType",
    "lsup:created",
    "lsup:createdBy",
    "lsup:lastModified",
    "lsup:lastModifiedBy",
    "premis:hasSize",
    "premis:hasMessageDigest",
    NULL
};

/*
 * Repo-managed RDF types.
 */
static char *mgd_type_str[] = {
    "lsup:AdminMetadata",
    "lsup:DataResource",
    "lsup:DescriptionResource",
    "lsup:List",
    "lsup:ListItem",
    "lsup:Metadata",
    "lsup:Proxy",
    "lsup:Resource",
    "lsup:Set",
    "lsup:UserMetadata",
    NULL
};


LSR_TermMap *LSR_managed_preds, *LSR_managed_types;


LSUP_rc LSR_init (void)
{
    if (LSR_is_init) return LSUP_NOACTION;

    LSUP_rc rc = LSUP_init();
    if (rc < 0) return rc;

    // Load additional LSUP_repo namespaces into store and memory.
    LSUP_NSMap *nsm = LSUP_default_env->nsm;

    for (int i = 0; nsm_str[i][0] != NULL; i++)
        LSUP_nsmap_add (nsm, nsm_str[i][0], nsm_str[i][1]);

    // Store the additional NS if this is the first time.
    LSUP_mdbstore_nsm_store (LSUP_default_env->mdb_store, nsm);

    // Cache managed predicates.
    for (int i = 0; mgd_pred_str[i] != NULL; i++) {
        LSUP_Term *uri = LSUP_iriref_new (
                mgd_pred_str[i], LSUP_default_env->nsm);

        LSR_TermMap *titem;
        MALLOC_GUARD (titem, LSUP_MEM_ERR);
        titem->term = uri;
        titem->key = LSUP_term_hash (uri);

        HASH_ADD (hh, LSR_managed_preds, key, sizeof (titem->key), titem);
    }

    // Cache managed types.
    for (int i = 0; mgd_type_str[i] != NULL; i++) {
        LSUP_Term *uri = LSUP_iriref_new (
                mgd_type_str[i], LSUP_default_env->nsm);

        LSR_TermMap *titem;
        MALLOC_GUARD (titem, LSUP_MEM_ERR);
        titem->term = uri;
        titem->key = LSUP_term_hash (uri);

        HASH_ADD (hh, LSR_managed_types, key, sizeof (titem->key), titem);
    }
    LSR_is_init = true;

    atexit (LSR_done);

    return LSUP_OK;
}


void LSR_done (void)
{
    if (!LSR_is_init) return;

    log_info ("Tearing down LSUP repo environment.");

    LSR_TermMap *entry, *tmp;
    HASH_ITER (hh, LSR_managed_preds, entry, tmp) {
        HASH_DEL (LSR_managed_preds, entry);
        LSUP_term_free (entry->term);
        free (entry);
    }
    HASH_ITER (hh, LSR_managed_types, entry, tmp) {
        HASH_DEL (LSR_managed_types, entry);
        LSUP_term_free (entry->term);
        free (entry);
    }

    LSUP_done();
    LSR_is_init = false;
}


LSUP_Term *LSR_id_to_urn (const uuid_t id, const char *frag);