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Add add.raw.json.column SerDe property #51

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Add add.raw.json.column SerDe property #51

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20 changes: 19 additions & 1 deletion src/main/java/org/openx/data/jsonserde/JsonSerDe.java
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Original file line number Diff line number Diff line change
Expand Up @@ -78,8 +78,11 @@ public class JsonSerDe implements SerDe {
long serializedDataSize;
// if set, will ignore malformed JSON in deserialization
boolean ignoreMalformedJson = false;
// if set, will add column that contains raw json string
String rawJsonColumn = null;
public static final String PROP_IGNORE_MALFORMED_JSON = "ignore.malformed.json";

public static final String PROP_ADD_RAW_JSON_COLUMN = "add.raw.json.column";

JsonStructOIOptions options;

/**
Expand Down Expand Up @@ -115,6 +118,15 @@ public void initialize(Configuration conf, Properties tbl) throws SerDeException
}
assert (columnNames.size() == columnTypes.size());

// add field with raw json string
rawJsonColumn = tbl.getProperty(PROP_ADD_RAW_JSON_COLUMN);
if (rawJsonColumn != null) {
columnNames = new ArrayList<String>(columnNames);
columnTypes = new ArrayList<TypeInfo>(columnTypes);
columnNames.add(rawJsonColumn);
columnTypes.add(TypeInfoFactory.stringTypeInfo);
}

stats = new SerDeStats();

// Create row related objects
Expand Down Expand Up @@ -201,6 +213,9 @@ public JSONObject put(String key, Object value) throws JSONException {
return super.put(key.toLowerCase(), value);
}
};
if (rawJsonColumn != null) {
jObj.put(rawJsonColumn, rowText.toString());
}
} catch (JSONException e) {
// If row is not a JSON object, make the whole row NULL
onMalformedJson("Row is not a valid JSON Object - JSONException: "
Expand Down Expand Up @@ -287,6 +302,9 @@ private JSONObject serializeStruct( Object obj,

for (int i =0; i< fields.size(); i++) {
StructField sf = fields.get(i);
if (sf.getFieldName().equals(rawJsonColumn)) {
continue;
}
Object data = soi.getStructFieldData(obj, sf);

if (null != data) {
Expand Down