org.glowroot.config.PropertyValueDeserializer Maven / Gradle / Ivy
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/*
* Copyright 2015 the original author or authors.
*
* 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.glowroot.config;
import java.io.IOException;
import org.glowroot.shaded.fasterxml.jackson.core.JsonParser;
import org.glowroot.shaded.fasterxml.jackson.core.JsonToken;
import org.glowroot.shaded.fasterxml.jackson.databind.DeserializationContext;
import org.glowroot.shaded.fasterxml.jackson.databind.JsonDeserializer;
class PropertyValueDeserializer extends JsonDeserializer {
@Override
public PropertyValue deserialize(JsonParser parser, DeserializationContext ctxt)
throws IOException {
JsonToken token = parser.getCurrentToken();
switch (token) {
case VALUE_FALSE:
case VALUE_TRUE:
return new PropertyValue(parser.getBooleanValue());
case VALUE_NUMBER_FLOAT:
case VALUE_NUMBER_INT:
return new PropertyValue(parser.getDoubleValue());
case VALUE_STRING:
return new PropertyValue(parser.getText());
default:
throw new AssertionError("Unexpected json type: " + token);
}
}
@Override
public PropertyValue getNullValue(DeserializationContext ctxt) {
return new PropertyValue(null);
}
}