/*
* 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 com.addthis.codec.jackson;
import java.io.IOException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.deser.std.EnumDeserializer;
import com.fasterxml.jackson.databind.deser.std.StdScalarDeserializer;
import com.fasterxml.jackson.databind.node.TextNode;
// ignores case when deserializing enums
public class CodecEnumDeserializer extends StdScalarDeserializer<Enum<?>> {
private final EnumDeserializer base;
public CodecEnumDeserializer(EnumDeserializer base) {
super(Enum.class);
this.base = base;
}
@Override
public Enum<?> deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException {
JsonToken curr = jp.getCurrentToken();
if ((curr == JsonToken.VALUE_STRING) || (curr == JsonToken.FIELD_NAME)
|| (curr == JsonToken.VALUE_FALSE) || (curr == JsonToken.VALUE_TRUE)) {
String name = jp.getText();
TextNode upperName = ctxt.getNodeFactory().textNode(name.toUpperCase());
JsonParser treeParser = jp.getCodec().treeAsTokens(upperName);
treeParser.nextToken();
return base.deserialize(treeParser, ctxt);
} else {
return base.deserialize(jp, ctxt);
}
}
}