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A more performant JSON-LD 1.1 Processor & API forked from Titanium JSON-LD.
The newest version!
/*
* Copyright 2020 APICATALOG and HASMAC.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-License-Identifier: Apache-2.0
*/
package no.hasmac.jsonld.lang;
import jakarta.json.JsonObject;
import jakarta.json.JsonValue;
import no.hasmac.jsonld.json.JsonProvider;
import no.hasmac.jsonld.json.JsonUtils;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
/**
*
* @see Graph Objects
*
*/
public final class GraphObject {
private GraphObject() {
}
public static boolean isGraphObject(JsonValue value) {
if (!JsonUtils.isObject(value) || !value.asJsonObject().containsKey(Keywords.GRAPH)) {
return false;
}
Set allowed = new HashSet<>(Arrays.asList(Keywords.GRAPH, Keywords.ID, Keywords.INDEX, Keywords.CONTEXT));
return allowed.containsAll(value.asJsonObject().keySet());
}
public static boolean isSimpleGraphObject(JsonValue value) {
return isGraphObject(value) && !value.asJsonObject().containsKey(Keywords.ID);
}
public static JsonObject toGraphObject(JsonValue value) {
return JsonProvider.instance().createObjectBuilder().add(Keywords.GRAPH, JsonUtils.toJsonArray(value)).build();
}
}