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/*
* Copyright 2019 the original author or authors.
*
* Licensed under the Apache, 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.gnu.org/licenses/lgpl-3.0.html
*
* 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.jn.easyjson.jackson;
import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.core.json.JsonReadContext;
import com.fasterxml.jackson.core.json.JsonWriteContext;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.jn.easyjson.core.codec.dialect.DialectIdentify;
import com.jn.easyjson.core.codec.dialect.PropertyCodecConfiguration;
import com.jn.easyjson.jackson.ext.EasyJsonObjectMapper;
import com.jn.langx.annotation.NonNull;
import com.jn.langx.util.Objs;
import com.jn.langx.util.collection.Pipeline;
import com.jn.langx.util.function.Predicate;
import com.jn.langx.util.reflect.Reflects;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Member;
import java.lang.reflect.Modifier;
import java.lang.reflect.Type;
import java.text.DateFormat;
import java.util.Locale;
import java.util.ServiceLoader;
import java.util.TimeZone;
public class Jacksons {
/**
* @since 3.2.3
*/
private static final Version CURRENT_VERSION;
private static final String JACKSON_CORE_PACKAGE_NAME = "com.fasterxml.jackson.core";
public static boolean isJacksonJavaType(Type type) {
return type instanceof JavaType;
}
public static JavaType toJavaType(Type type) {
return (JavaType) type;
}
public static boolean getBooleanAttr(DeserializationContext ctx, String key) {
if (ctx == null || key == null) {
return false;
}
return getBoolean(ctx.getAttribute(key));
}
public static boolean getBooleanAttr(SerializerProvider sp, String key) {
if (sp == null || key == null) {
return false;
}
return getBoolean(sp.getAttribute(key));
}
public static boolean getBoolean(Object obj) {
if (obj == null) {
return false;
}
return obj.toString().toLowerCase().equals("true");
}
public static TimeZone getTimeZone(DeserializationContext ctx) {
return Objs.useValueIfNull((TimeZone) ctx.getAttribute(JacksonConstants.SERIALIZE_TIMEZONE), TimeZone.getDefault());
}
public static Locale getLocale(DeserializationContext ctx) {
return Objs.useValueIfNull((Locale) ctx.getAttribute(JacksonConstants.SERIALIZE_LOCALE), Locale.getDefault());
}
public static DateFormat getDateFormatAttr(DeserializationContext ctx, String key) {
if (ctx == null || key == null) {
return null;
}
return asDateFormat(ctx.getAttribute(key));
}
public static DateFormat getDateFormatAttr(SerializerProvider sp, String key) {
if (sp == null || key == null) {
return null;
}
return asDateFormat(sp.getAttribute(key));
}
private static DateFormat asDateFormat(Object object) {
if (object == null) {
return null;
}
if (object instanceof DateFormat) {
return (DateFormat) object;
}
return null;
}
public static String getStringAttr(DeserializationContext ctx, String key) {
if (ctx == null || key == null) {
return null;
}
return asString(ctx.getAttribute(key));
}
public static String getStringAttr(SerializerProvider sp, String key) {
if (sp == null || key == null) {
return null;
}
return asString(sp.getAttribute(key));
}
private static String asString(Object object) {
if (object == null) {
return null;
}
if (object instanceof String) {
return (String) object;
}
return null;
}
public static final DialectIdentify JACKSON = new DialectIdentify();
static {
JACKSON.setId("jackson");
JACKSON.setLibUrl(Reflects.getCodeLocation(ObjectMapper.class).toString());
}
public static PropertyCodecConfiguration getPropertyCodecConfiguration(JsonGenerator gen) {
ObjectCodec objectCodec = gen.getCodec();
if (!(objectCodec instanceof EasyJsonObjectMapper)) {
return null;
}
JsonStreamContext streamContext = gen.getOutputContext();
if (streamContext instanceof JsonWriteContext) {
JsonWriteContext writeContext = (JsonWriteContext) streamContext;
Object container = writeContext.getCurrentValue();
String propertyName = writeContext.getCurrentName();
EasyJsonObjectMapper objectMapper = (EasyJsonObjectMapper) objectCodec;
JacksonJSONBuilder jsonBuilder = objectMapper.getJsonBuilder();
DialectIdentify proxyDialectIdentify = jsonBuilder.proxyDialectIdentify();
return PropertyCodecConfiguration.getPropertyCodecConfiguration(proxyDialectIdentify, container, propertyName);
}
return null;
}
public static PropertyCodecConfiguration getPropertyCodecConfiguration(@NonNull JsonParser p) {
ObjectCodec objectCodec = p.getCodec();
if (!(objectCodec instanceof EasyJsonObjectMapper)) {
return null;
}
JsonStreamContext parsingContext = p.getParsingContext();
if (parsingContext instanceof JsonReadContext) {
JsonReadContext readContext = (JsonReadContext) parsingContext;
Object container = readContext.getCurrentValue();
String propertyName = readContext.getCurrentName();
EasyJsonObjectMapper objectMapper = (EasyJsonObjectMapper) objectCodec;
JacksonJSONBuilder jsonBuilder = objectMapper.getJsonBuilder();
DialectIdentify proxyDialectIdentify = jsonBuilder.proxyDialectIdentify();
return PropertyCodecConfiguration.getPropertyCodecConfiguration(proxyDialectIdentify, container, propertyName);
}
return null;
}
static {
CURRENT_VERSION = guessCurrentVersion();
}
/**
* @since 3.2.3
*/
private static Version guessCurrentVersion() {
JsonFactory factory = Pipeline.of(ServiceLoader.load(JsonFactory.class))
.filter(new Predicate() {
@Override
public boolean test(JsonFactory jsonFactory) {
return JACKSON_CORE_PACKAGE_NAME.equals(Reflects.getPackageName(jsonFactory.getClass()));
}
})
.findFirst();
Version template = factory.version();
Version version = new Version(template.getMajorVersion(), template.getMinorVersion(), template.getPatchLevel(), null, null, null);
return version;
}
/**
* @since 3.2.3
*/
public static Version getCurrentVersion() {
return CURRENT_VERSION;
}
/**
* @since 3.2.5 invoke member#setAccessiable(true)
*
* copy from jackson
* jackson 版本小于 2.7时，是没有这个方法的
*
* @param member
* @param force
*/
public static void checkAndFixAccess(Member member, boolean force) {
AccessibleObject ao = (AccessibleObject)member;
try {
if (force || !Modifier.isPublic(member.getModifiers()) || !Modifier.isPublic(member.getDeclaringClass().getModifiers())) {
ao.setAccessible(true);
}
} catch (SecurityException var5) {
if (!ao.isAccessible()) {
Class declClass = member.getDeclaringClass();
throw new IllegalArgumentException("Cannot access " + member + " (from class " + declClass.getName() + "; failed to set access: " + var5.getMessage());
}
}
}
public static final Version VERSION_2_6_0 = new Version(2,6,0,null);
public static final Version VERSION_2_9_0 = new Version(2,9,0,null);
public static final Version VERSION_2_10_0 = new Version(2,10,0,null);
}