Example usage for com.fasterxml.jackson.core ObjectCodec createObjectNode

Introduction

In this page you can find the example usage for com.fasterxml.jackson.core ObjectCodec createObjectNode.

Prototype

public abstract TreeNode createObjectNode();

Source Link

Document

Method for construct root level Object nodes for Tree Model instances.

Usage

From source file:com.addthis.codec.jackson.CodecTypeDeserializer.java

@Nullable
private Object _deserializeTypedFromArray(ArrayNode arrayNode, ObjectCodec objectCodec,
        DeserializationContext ctxt) throws IOException {
    if (idRes.isValidTypeId("_array")) {
        Config aliasDefaults = pluginMap.aliasDefaults("_array").toConfig();
        String arrayField = aliasDefaults.getString("_primary");
        try {//from  ww w.  ja va2s . c  om
            ObjectNode objectFieldValues = (ObjectNode) objectCodec.createObjectNode();
            Jackson.setAt(objectFieldValues, arrayNode, arrayField);
            ObjectNode aliasFieldDefaults = Jackson.configConverter(aliasDefaults.root());
            Jackson.merge(objectFieldValues, aliasFieldDefaults);
            JsonDeserializer<Object> deser = _findDeserializer(ctxt, "_array");
            JsonParser treeParser = objectCodec.treeAsTokens(objectFieldValues);
            treeParser.nextToken();
            return deser.deserialize(treeParser, ctxt);
        } catch (IOException ex) {
            throw Jackson.maybeUnwrapPath(arrayField, ex);
        }
    } else {
        return null;
    }
}

---

From source file:com.addthis.codec.jackson.CodecTypeDeserializer.java

@Nullable
private Object _deserializeObjectFromSingleKey(ObjectNode objectNode, String singleKeyName,
        ObjectCodec objectCodec, DeserializationContext ctxt) throws IOException {
    if (idRes.isValidTypeId(singleKeyName)) {
        ConfigObject aliasDefaults = pluginMap.aliasDefaults(singleKeyName);
        String primaryField;/*from   w  w  w . j av a 2 s.c  o m*/
        if (aliasDefaults.containsKey("_primary")) {
            primaryField = (String) aliasDefaults.get("_primary").unwrapped();
        } else {
            primaryField = null;
        }
        boolean unwrapPrimary = false;
        try {
            JsonNode singleKeyValue = objectNode.get(singleKeyName);
            JsonDeserializer<Object> deser = _findDeserializer(ctxt, singleKeyName);
            if (!singleKeyValue.isObject()) {
                // if value is not an object, try supporting _primary syntax to derive one
                if (primaryField != null) {
                    ObjectNode singleKeyObject = (ObjectNode) objectCodec.createObjectNode();
                    Jackson.setAt(singleKeyObject, singleKeyValue, primaryField);
                    Jackson.merge(singleKeyObject, Jackson.configConverter(aliasDefaults));
                    singleKeyValue = singleKeyObject;
                    unwrapPrimary = true;
                } // else let the downstream serializer try to handle it or complain
            } else {
                ObjectNode singleKeyObject = (ObjectNode) singleKeyValue;
                unwrapPrimary = handleDefaultsAndImplicitPrimary(singleKeyObject, aliasDefaults, deser, ctxt);
            }
            if (_typeIdVisible && singleKeyValue.isObject()) {
                ((ObjectNode) singleKeyValue).put(_typePropertyName, singleKeyName);
            }
            JsonParser treeParser = objectCodec.treeAsTokens(singleKeyValue);
            treeParser.nextToken();
            return deser.deserialize(treeParser, ctxt);
        } catch (IOException cause) {
            if (unwrapPrimary) {
                cause = Jackson.maybeUnwrapPath(primaryField, cause);
            }
            throw wrapWithPath(cause, idRes.typeFromId(ctxt, singleKeyName), singleKeyName);
        } catch (Throwable cause) {
            throw wrapWithPath(cause, idRes.typeFromId(ctxt, singleKeyName), singleKeyName);
        }
    }
    return null;
}

---