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Adapter easyjson to Jackson
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package com.jn.easyjson.jackson.node;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.*;
import com.jn.easyjson.core.JsonTreeNode;
import com.jn.easyjson.core.node.*;
import com.jn.langx.util.collection.Collects;
import com.jn.langx.util.function.Consumer2;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
public class JacksonJsonMapper {
public static JsonTreeNode toJsonTreeNode(Object obj) {
return JsonTreeNodes.toJsonTreeNode(obj, new JacksonToTreeNodeMapper());
}
public static JsonNode fromJsonTreeNode(JsonTreeNode treeNode) {
return (JsonNode) JsonTreeNodes.toXxxJson(treeNode, new JacksonToJsonMapper());
}
static class JacksonToJsonMapper implements ToXxxJsonMapper {
JsonNodeFactory jsonNodeFactory = new JsonNodeFactory(true);
@Override
public NullNode mappingNull(JsonNullNode node) {
return NullNode.instance;
}
@Override
public ValueNode mappingPrimitive(JsonPrimitiveNode node) {
JsonPrimitiveNode jsonPrimitiveNode = node.getAsJsonPrimitiveNode();
if (jsonPrimitiveNode.isNumber()) {
if (jsonPrimitiveNode.isDouble()) {
return jsonNodeFactory.numberNode(jsonPrimitiveNode.getAsDouble());
}
if (jsonPrimitiveNode.isLong()) {
return jsonNodeFactory.numberNode(jsonPrimitiveNode.getAsLong());
}
if (jsonPrimitiveNode.isFloat()) {
return jsonNodeFactory.numberNode(jsonPrimitiveNode.getAsFloat());
}
if (jsonPrimitiveNode.isInteger()) {
return jsonNodeFactory.numberNode(jsonPrimitiveNode.getAsInt());
}
if (jsonPrimitiveNode.isShort()) {
return jsonNodeFactory.numberNode(jsonPrimitiveNode.getAsShort());
}
if (jsonPrimitiveNode.isByte()) {
return jsonNodeFactory.numberNode(jsonPrimitiveNode.getAsByte());
}
if (jsonPrimitiveNode.isBigInteger()) {
return jsonNodeFactory.numberNode(jsonPrimitiveNode.getAsBigInteger());
}
if (jsonPrimitiveNode.isBigDecimal()) {
return jsonNodeFactory.numberNode(jsonPrimitiveNode.getAsBigDecimal());
}
}
if (jsonPrimitiveNode.isBoolean()) {
return jsonNodeFactory.booleanNode(jsonPrimitiveNode.getAsBoolean());
}
if (jsonPrimitiveNode.isChar()) {
return jsonNodeFactory.textNode(jsonPrimitiveNode.getAsString());
}
return jsonNodeFactory.textNode(jsonPrimitiveNode.getAsString());
}
@Override
public ArrayNode mappingArray(JsonArrayNode node) {
JsonArrayNode jsonArrayNode = node.getAsJsonArrayNode();
ArrayNode arrayNode = jsonNodeFactory.arrayNode();
for (JsonTreeNode element : jsonArrayNode) {
arrayNode.add((JsonNode) JsonTreeNodes.toXxxJson(element, this));
}
return arrayNode;
}
@Override
public ObjectNode mappingObject(JsonObjectNode node) {
JsonObjectNode jsonObjectNode = node.getAsJsonObjectNode();
ObjectNode objectNode = jsonNodeFactory.objectNode();
Iterator iter = jsonObjectNode.propertyNames().iterator();
while (iter.hasNext()) {
String fieldName = iter.next();
objectNode.set(fieldName, (JsonNode) JsonTreeNodes.toXxxJson(jsonObjectNode.getProperty(fieldName), this));
}
return objectNode;
}
}
static class JacksonToTreeNodeMapper implements ToJsonTreeNodeMapper {
@Override
public JsonTreeNode mapping(Object object) {
return create((JsonNode) object);
}
@Override
public boolean isAcceptable(Object object) {
return object instanceof JsonNode;
}
private JsonTreeNode createFromPojo(Object object) {
if (object == null) {
return JsonNullNode.INSTANCE;
}
if (object instanceof JsonNode) {
return create((JsonNode) object);
}
if (object instanceof Number) {
return new JsonPrimitiveNode((Number) object);
}
if (object instanceof String) {
return new JsonPrimitiveNode(object.toString());
}
if (object instanceof Boolean) {
return new JsonPrimitiveNode((Boolean) object);
}
if (object instanceof Collection) {
Collection c = (Collection) object;
JsonArrayNode arrayNode = new JsonArrayNode(c.size());
for (Object e : c) {
arrayNode.add(createFromPojo(e));
}
return arrayNode;
}
if (object instanceof Map) {
Map map = (Map) object;
final JsonObjectNode jsonObjectNode = new JsonObjectNode();
Collects.forEach(map, new Consumer2