/*
* Copyright (c) 2016. Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file 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.amazonaws.codegen.internal;
import com.fasterxml.jackson.core.JsonGenerationException;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectWriter;
import com.fasterxml.jackson.databind.SerializationFeature;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.Writer;
public class Jackson {
private static final ObjectMapper MAPPER = new ObjectMapper();
private static final ObjectWriter WRITER = MAPPER
.configure(SerializationFeature.ORDER_MAP_ENTRIES_BY_KEYS, true)
.configure(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY, true)
.writerWithDefaultPrettyPrinter();
static {
MAPPER.configure(JsonParser.Feature.ALLOW_COMMENTS, true);
// TODO: Un comment this once we know for sure, we capture everything in C2j model.
MAPPER.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
}
public static <T> T load(Class<T> clazz, File file)
throws JsonParseException, JsonMappingException, IOException {
return load(clazz, new FileInputStream(file));
}
public static <T> T load(Class<T> clazz, InputStream is)
throws JsonParseException, JsonMappingException, IOException {
return MAPPER.readValue(is, clazz);
}
public static <T> T load(Class<T> clazz, String fileLocation)
throws JsonParseException, JsonMappingException, IOException {
InputStream is = Jackson.class.getClassLoader().getResourceAsStream(
fileLocation);
return MAPPER.readValue(is, clazz);
}
public static void write(Object value, Writer w)
throws JsonGenerationException, JsonMappingException, IOException {
WRITER.writeValue(w, value);
}
}