KisMetaData::SchemaRegistry Class Reference

#include <kis_meta_data_schema_registry.h>

Public Member Functions
const KisMetaData::Schema *	create (const QString &uri, const QString &prefix)
const Schema *	schemaFromPrefix (const QString &prefix) const
const Schema *	schemaFromUri (const QString &uri) const
	SchemaRegistry ()
	~SchemaRegistry ()

Static Public Member Functions
static KisMetaData::SchemaRegistry *	instance ()

Private Attributes
Private *const	d

Detailed Description

Definition at line 20 of file kis_meta_data_schema_registry.h.

Constructor & Destructor Documentation

SchemaRegistry()

SchemaRegistry::SchemaRegistry

(

)

DO NOT USE! Use instance() instead. This constructor is public only to allow it to be used by Q_GLOBAL_STATIC. Same for the destructor.

Definition at line 33 of file kis_meta_data_schema_registry.cc.

    : d(new Private)
{
    KoResourcePaths::addAssetType("metadata_schema", "data", "/metadata/schemas/");
 
    QStringList schemasFilenames = KoResourcePaths::findAllAssets("metadata_schema", "*.schema");
 
    Q_FOREACH (const QString& fileName, schemasFilenames) {
        Schema* schema = new Schema();
        schema->d->load(fileName);
        if (schemaFromUri(schema->uri())) {
            errMetaData << "Schema already exist uri: " << schema->uri();
            delete schema;
        } else if (schemaFromPrefix(schema->prefix())) {
            errMetaData << "Schema already exist prefix: " << schema->prefix();
            delete schema;
        } else {
            d->uri2Schema[schema->uri()] = schema;
            d->prefix2Schema[schema->prefix()] = schema;
        }
    }
 
    // DEPRECATED WRITE A SCHEMA FOR EACH OF THEM
    create(Schema::MakerNoteSchemaUri, "mkn");
    create(Schema::IPTCSchemaUri, "Iptc4xmpCore");
    create(Schema::PhotoshopSchemaUri, "photoshop");
}

References KoResourcePaths::addAssetType(), create(), KisMetaData::Schema::d, d, errMetaData, KoResourcePaths::findAllAssets(), KisMetaData::Schema::IPTCSchemaUri, KisMetaData::Schema::MakerNoteSchemaUri, KisMetaData::Schema::PhotoshopSchemaUri, KisMetaData::Schema::prefix, schemaFromPrefix(), schemaFromUri(), and KisMetaData::Schema::uri.

~SchemaRegistry()

SchemaRegistry::~SchemaRegistry

(

)

Definition at line 61 of file kis_meta_data_schema_registry.cc.

{
    delete d;
}

References d.

Member Function Documentation

create()

const Schema * SchemaRegistry::create	(	const QString &	uri,
		const QString &	prefix )

Creates a new schema.

Parameters

uri	the name of the schema
prefix	the namespace prefix used for this schema

Returns

the schema associated with the uri (it can return 0, if no schema exist for the uri, but the prefix was already used, and it can be an already existing schema if the uri was already included)

Definition at line 77 of file kis_meta_data_schema_registry.cc.

{
    // First search for the schema
    const Schema* schema = schemaFromUri(uri);
    if (schema) {
        return schema;
    }
    // Second search for the prefix
    schema = schemaFromPrefix(prefix);
    if (schema) {
        return 0; // A schema with the same prefix already exist
    }
    // The schema doesn't exist yet, create it
    Schema* nschema = new Schema(uri, prefix);
    d->uri2Schema[uri] = nschema;
    d->prefix2Schema[prefix] = nschema;
    return nschema;
}

References d, schemaFromPrefix(), and schemaFromUri().

instance()

SchemaRegistry * SchemaRegistry::instance ( )

static

Return an instance of the SchemaRegistry. Creates an instance if that has never happened before and returns the singleton instance. Initialize it with default schemas.

Definition at line 28 of file kis_meta_data_schema_registry.cc.

{
    return s_instance;
}

schemaFromPrefix()

const Schema * SchemaRegistry::schemaFromPrefix

(

const QString &

prefix

)

const

Returns

the schema for this prefix

Definition at line 72 of file kis_meta_data_schema_registry.cc.

{
    return d->prefix2Schema[prefix];
}

References d.

schemaFromUri()

const Schema * SchemaRegistry::schemaFromUri

(

const QString &

uri

)

const

Returns

the schema for this uri

Definition at line 67 of file kis_meta_data_schema_registry.cc.

{
    return d->uri2Schema[uri];
}

References d.

Member Data Documentation

d

Private* const KisMetaData::SchemaRegistry::d

private

Definition at line 57 of file kis_meta_data_schema_registry.h.

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The documentation for this class was generated from the following files:

• libs/metadata/kis_meta_data_schema_registry.h
• libs/metadata/kis_meta_data_schema_registry.cc