JsonObjectMapperImpl.java
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* #%L
* wcm.io
* %%
* Copyright (C) 2022 wcm.io
* %%
* 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
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package io.wcm.siteapi.processor.util.impl;
import java.io.IOException;
import java.util.Map;
import org.jetbrains.annotations.NotNull;
import org.osgi.service.component.annotations.Component;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.json.JsonMapper;
import io.wcm.siteapi.processor.util.JsonObjectMapper;
/**
* Implements {@link JsonObjectMapper}.
*/
@Component(service = JsonObjectMapper.class)
public class JsonObjectMapperImpl implements JsonObjectMapper {
private static final ObjectMapper OBJECT_MAPPER = JsonMapper.builder()
// ensure consistent ordering of objects and properties
.enable(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY)
.enable(SerializationFeature.ORDER_MAP_ENTRIES_BY_KEYS)
// allow comments in JSON
.enable(JsonParser.Feature.ALLOW_COMMENTS)
// ignore null properties
.serializationInclusion(Include.NON_NULL)
.build();
private static final JavaType MAP_TYPE = OBJECT_MAPPER.getTypeFactory()
.constructMapType(Map.class, String.class, Object.class);
@Override
@SuppressWarnings("null")
public @NotNull Map<String, Object> toMap(@NotNull Object object) {
return OBJECT_MAPPER.convertValue(object, MAP_TYPE);
}
@Override
public @NotNull String toJsonString(@NotNull Object object) throws IOException {
return OBJECT_MAPPER.writeValueAsString(object);
}
@Override
@SuppressWarnings("null")
public @NotNull Map<String, Object> parseToMap(@NotNull String jsonString) throws IOException {
return OBJECT_MAPPER.readValue(jsonString, MAP_TYPE);
}
}