public static Schema getPigSchema(ResourceSchema rSchema) throws FrontendException { if(rSchema == null) { return null; } List<FieldSchema> fsList = new ArrayList<FieldSchema>(); for(ResourceFieldSchema rfs : rSchema.getFields()) { FieldSchema fs = new FieldSchema(rfs.getName(), rfs.getSchema() == null ? null : getPigSchema(rfs.getSchema()), rfs.getType()); if(rfs.getType() == DataType.BAG) { if (fs.schema != null) { // allow partial schema if (fs.schema.size() == 1) { FieldSchema innerFs = fs.schema.getField(0); if (innerFs.type != DataType.TUPLE) { ResourceFieldSchema.throwInvalidSchemaException(); } } else { ResourceFieldSchema.throwInvalidSchemaException(); } } } fsList.add(fs); } return new Schema(fsList); }
private void validateSchema(ResourceSchema schema) throws IOException { if(type == DataType.BAG && schema != null) { ResourceFieldSchema[] subFields = schema.getFields(); if (subFields.length == 1) { if (subFields[0].type != DataType.TUPLE) { throwInvalidSchemaException(); } } else { throwInvalidSchemaException(); } } }