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com.wavemaker.commons.json.JSONUtils Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (C) 2022-2023 WaveMaker, Inc.
*
* 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.wavemaker.commons.json;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;
import java.sql.Date;
import java.text.SimpleDateFormat;
import org.apache.commons.lang3.StringUtils;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.Module;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.std.SqlDateSerializer;
import com.fasterxml.jackson.databind.type.TypeFactory;
import com.wavemaker.commons.MessageResource;
import com.wavemaker.commons.WMRuntimeException;
import com.wavemaker.commons.util.WMIOUtils;
/**
* Created by venuj on 19-05-2014.
*/
public class JSONUtils {
private static final ObjectMapper objectMapper;
static {
objectMapper = new ObjectMapper();
objectMapper.setTypeFactory(TypeFactory.defaultInstance().withClassLoader(JSONUtils.class.getClassLoader()));
final SimpleModule module = new SimpleModule();
module.addSerializer(Date.class,
new SqlDateSerializer().withFormat(false, new SimpleDateFormat("yyyy-MM-dd"))
);
objectMapper.registerModule(module);
}
private JSONUtils() {
}
public static String prettifyJSON(String data) throws IOException {
if (StringUtils.isNotBlank(data)) {
JsonNode tree = objectMapper.readTree(data);
return objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString(tree);
}
return data;
}
public static void prettifyJSON(String data, File outputFile) throws IOException {
if (data == null) {
throw new WMRuntimeException(MessageResource.create("com.wavemaker.commons.null.json.prettify.error"));
}
String formattedJson = prettifyJSON(data);
WMIOUtils.write(outputFile, formattedJson);
}
public static String toJSON(Object object) {
try {
return toJSON(object, true);
} catch (IOException e) {
throw new WMRuntimeException(MessageResource.create("com.wavemaker.commons.objToJsonConversionFailed"), e);
}
}
public static String toJSON(Object object, boolean prettify) throws IOException {
return prettify ? objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString(object) : objectMapper
.writeValueAsString(object);
}
public static void toJSON(File outputFile, Object object) throws IOException {
toJSON(outputFile, object, true);
}
public static void toJSON(File outputFile, Object object, boolean prettify) throws IOException {
if (prettify) {
objectMapper.writerWithDefaultPrettyPrinter().writeValue(outputFile, object);
} else {
objectMapper.writeValue(outputFile, object);
}
}
public static void toJSON(OutputStream outputStream, Object object) throws IOException {
toJSON(outputStream, object, true);
}
public static void toJSON(OutputStream outputStream, Object object, boolean prettify) throws IOException {
try {
if (prettify) {
objectMapper.writerWithDefaultPrettyPrinter().writeValue(outputStream, object);
} else {
objectMapper.writeValue(outputStream, object);
}
} finally {
WMIOUtils.closeSilently(outputStream);
}
}
public static void toJSON(Writer outputWriter, Object object) throws IOException {
toJSON(outputWriter, object, true);
}
public static void toJSON(Writer outputWriter, Object object, boolean prettify) throws IOException {
try {
if (prettify) {
objectMapper.writerWithDefaultPrettyPrinter().writeValue(outputWriter, object);
} else {
objectMapper.writeValue(outputWriter, object);
}
} finally {
WMIOUtils.closeSilently(outputWriter);
}
}
public static T toObject(String jsonString, Class t) throws IOException {
return objectMapper.readValue(jsonString, t);
}
public static T toObject(Reader jsonReader, Class t) throws IOException {
try {
return objectMapper.readValue(jsonReader, t);
} finally {
WMIOUtils.closeSilently(jsonReader);
}
}
public static T toObject(InputStream jsonStream, Class t) throws IOException {
try {
return objectMapper.readValue(jsonStream, t);
} finally {
WMIOUtils.closeSilently(jsonStream);
}
}
public static T toObject(File file, Class targetClass) throws IOException {
return objectMapper.readValue(file, targetClass);
}
public static T toObject(File file, JavaType javaType) throws IOException {
return objectMapper.readValue(file, javaType);
}
public static T toObject(String jsonString, TypeReference valueTypeRef) throws IOException {
return objectMapper.readValue(jsonString, valueTypeRef);
}
public static T toObject(InputStream inputStream, TypeReference typeReference) throws IOException {
try {
return objectMapper.readValue(inputStream, typeReference);
} finally {
WMIOUtils.closeSilently(inputStream);
}
}
public static T toObject(Reader reader, TypeReference typeReference) throws IOException {
try {
return objectMapper.readValue(reader, typeReference);
} finally {
WMIOUtils.closeSilently(reader);
}
}
public static T convert(Object object, Class targetClass) {
return objectMapper.convertValue(object, targetClass);
}
public static void registerModule(Module module) {
objectMapper.registerModule(module);
}
public static JsonNode readTree(InputStream inputStream) {
try {
return objectMapper.readTree(inputStream);
} catch (IOException e) {
throw new WMRuntimeException(MessageResource.create("com.wavemaker.commons.jsonData.parse.failed"), e);
} finally {
WMIOUtils.closeSilently(inputStream);
}
}
public static JsonNode readTree(String str) {
try {
return objectMapper.readTree(str);
} catch (IOException e) {
throw new WMRuntimeException(MessageResource.create("com.wavemaker.commons.jsonData.parse.failed"), e);
}
}
}
