/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* 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.
*/
package org.keycloak.json;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ArrayNode;
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
public class StringListMapDeserializer extends JsonDeserializer<Object> {
@Override
public Object deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
JsonNode jsonNode = jsonParser.readValueAsTree();
Iterator<Map.Entry<String, JsonNode>> itr = jsonNode.fields();
Map<String, List<String>> map = new HashMap<>();
while (itr.hasNext()) {
Map.Entry<String, JsonNode> e = itr.next();
List<String> values = new LinkedList<>();
if (!e.getValue().isArray()) {
values.add(e.getValue().asText());
} else {
ArrayNode a = (ArrayNode) e.getValue();
Iterator<JsonNode> vitr = a.elements();
while (vitr.hasNext()) {
values.add(vitr.next().asText());
}
}
map.put(e.getKey(), values);
}
return map;
}
}