void toJson(JsonGenerator gen) throws IOException {
gen.writeStartObject();
gen.writeArrayFieldStart("sourceSchemas");
for (Schema schema : schemas) {
schema.toJson(gen);
}
gen.writeEndArray();
gen.writeObjectFieldStart("fieldAliases");
for (Map.Entry<String, Map<String, String>> entry : schemaFieldAliases.entrySet()) {
String schemaName = entry.getKey();
Map<String, String> aliases = entry.getValue();
gen.writeObjectField(schemaName, aliases);
}
gen.writeEndObject();
gen.writeArrayFieldStart("groupByFields");
for (String field : groupByFields) {
gen.writeString(field);
}
gen.writeEndArray();
if (customPartitionFields != null && !customPartitionFields.isEmpty()) {
gen.writeArrayFieldStart("customPartitionFields");
for (String field : customPartitionFields) {
gen.writeString(field);
}
gen.writeEndArray();
}
if (rollupFrom != null) {
gen.writeFieldName("rollupFrom");
gen.writeString(rollupFrom);
}
gen.writeFieldName("commonOrderBy");
commonCriteria.toJson(gen);
gen.writeStringField("schemasOrder", schemasOrder.toString());
// TODO this code should write a map with sourceName
if (specificCriterias == null || specificCriterias.isEmpty()) {
initSecondaryCriteriasWithNull();
}
gen.writeArrayFieldStart("specificOrderBys");
for (Criteria c : specificCriterias) {
if (c == null) {
gen.writeNull();
} else {
c.toJson(gen);
}
}
gen.writeEndArray();
gen.writeEndObject();
}
protected void writeProperty(JsonGenerator jg, Property prop) throws IOException {
if (prop.isScalar()) {
writeScalarProperty(jg, prop);
} else if (prop.isList()) {
writeListProperty(jg, prop);
} else {
if (prop.isPhantom()) {
jg.writeNull();
} else if (prop instanceof BlobProperty) { // a blob
writeBlobProperty(jg, prop);
} else { // a complex property
writeComplexProperty(jg, prop);
}
}
}
private void writeScalarPropertyValue(JsonGenerator jg, Type type, Object value)
throws IOException {
if (value == null) {
jg.writeNull();
} else if (type instanceof BooleanType) {
jg.writeBoolean((Boolean) value);
} else if (type instanceof LongType) {
jg.writeNumber((Long) value);
} else if (type instanceof DoubleType) {
jg.writeNumber((Double) value);
} else if (type instanceof IntegerType) {
jg.writeNumber((Integer) value);
} else if (type instanceof BinaryType) {
jg.writeBinary((byte[]) value);
} else {
jg.writeString(type.encode(value));
}
}
protected void writeBlobProperty(JsonGenerator jg, Property prop) throws IOException {
Blob blob = (Blob) prop.getValue();
if (blob == null) {
jg.writeNull();
return;
}
jg.writeStartObject();
String v = blob.getFilename();
if (v == null) {
jg.writeNullField("name");
} else {
jg.writeStringField("name", v);
}
v = blob.getMimeType();
if (v == null) {
jg.writeNullField("mime-type");
} else {
jg.writeStringField("mime-type", v);
}
v = blob.getEncoding();
if (v == null) {
jg.writeNullField("encoding");
} else {
jg.writeStringField("encoding", v);
}
v = blob.getDigest();
if (v == null) {
jg.writeNullField("digest");
} else {
jg.writeStringField("digest", v);
}
jg.writeStringField("length", Long.toString(blob.getLength()));
String blobUrl = getBlobUrl(prop);
if (blobUrl == null) {
blobUrl = "";
}
jg.writeStringField("data", blobUrl);
jg.writeEndObject();
}