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feat: Onboard San Francisco Street Trees dataset (#176)
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dipannitab2392 committed Oct 6, 2021
1 parent d1f1d7c commit 7da5061
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# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# The base image for this build
FROM python:3.8

# Allow statements and log messages to appear in Cloud logs
ENV PYTHONUNBUFFERED True

# Copy the requirements file into the image
COPY requirements.txt ./

# Install the packages specified in the requirements file
RUN python3 -m pip install --no-cache-dir -r requirements.txt

# The WORKDIR instruction sets the working directory for any RUN, CMD,
# ENTRYPOINT, COPY and ADD instructions that follow it in the Dockerfile.
# If the WORKDIR doesn’t exist, it will be created even if it’s not used in
# any subsequent Dockerfile instruction
WORKDIR /custom

# Copy the specific data processing script/s in the image under /custom/*
COPY ./csv_transform.py .

# Command to run the data processing script when the container is run
CMD ["python3", "csv_transform.py"]
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# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


import datetime
import json
import logging
import math
import os
import pathlib
import typing

import pandas as pd
import requests
from google.cloud import storage


def main(
source_url: str,
source_file: pathlib.Path,
target_file: pathlib.Path,
target_gcs_bucket: str,
target_gcs_path: str,
headers: typing.List[str],
rename_mappings: dict,
pipeline_name: str,
) -> None:

logging.info(
f"San Francisco Trees {pipeline_name} process started at "
+ str(datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S"))
)

logging.info("Creating 'files' folder")
pathlib.Path("./files").mkdir(parents=True, exist_ok=True)

logging.info(f"Downloading file {source_url}")
download_file(source_url, source_file)

logging.info(f"Opening file {source_file}")
df = pd.read_csv(str(source_file))

logging.info(f"Transforming.. {source_file}")

logging.info(f"Transform: Rename columns for {pipeline_name}..")
rename_headers(df, rename_mappings)

logging.info(f"Transform: Converting to integer for {pipeline_name}..")
df["site_order"] = df["site_order"].apply(convert_to_integer_string)

logging.info(f"Transform: Converting date format for {pipeline_name}.. ")
df["plant_date"] = df["plant_date"].apply(convert_dt_format)

logging.info(f"Transform: Filtering Null values for {pipeline_name}.. ")
filter_null_rows(df)

logging.info(f"Transform: Reordering headers for {pipeline_name}.. ")
df = df[headers]

logging.info(f"Saving to output file.. {target_file}")
try:
save_to_new_file(df, file_path=str(target_file))
except Exception as e:
logging.error(f"Error saving output file: {e}.")

logging.info(
f"Uploading output file to.. gs://{target_gcs_bucket}/{target_gcs_path}"
)
upload_file_to_gcs(target_file, target_gcs_bucket, target_gcs_path)

logging.info(
f"San Francisco Trees {pipeline_name} process completed at "
+ str(datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S"))
)


def convert_dt_format(dt_str: str) -> str:
a = ""
if not dt_str or str(dt_str) == "nan":
return str(a)
else:
return datetime.datetime.strptime(str(dt_str), "%m/%d/%Y %H:%M:%S %p").strftime(
"%Y-%m-%d %H:%M:%S"
)


def save_to_new_file(df: pd.DataFrame, file_path: str) -> None:
df.to_csv(file_path, index=False)


def upload_file_to_gcs(file_path: pathlib.Path, gcs_bucket: str, gcs_path: str) -> None:
storage_client = storage.Client()
bucket = storage_client.bucket(gcs_bucket)
blob = bucket.blob(gcs_path)
blob.upload_from_filename(file_path)


def download_file(source_url: str, source_file: pathlib.Path) -> None:
logging.info(f"Downloading {source_url} into {source_file}")
r = requests.get(source_url, stream=True)
if r.status_code == 200:
with open(source_file, "wb") as f:
for chunk in r:
f.write(chunk)
else:
logging.error(f"Couldn't download {source_url}: {r.text}")


def filter_null_rows(df: pd.DataFrame) -> None:
df = df.query('tree_id != ""')


def rename_headers(df: pd.DataFrame, rename_mappings: dict) -> None:
df.rename(columns=rename_mappings, inplace=True)


def convert_to_integer_string(input: typing.Union[str, float]) -> str:
str_val = ""
if not input or (math.isnan(input)):
str_val = ""
else:
str_val = str(int(round(input, 0)))
return str_val


if __name__ == "__main__":
logging.getLogger().setLevel(logging.INFO)

main(
source_url=os.environ["SOURCE_URL"],
source_file=pathlib.Path(os.environ["SOURCE_FILE"]).expanduser(),
target_file=pathlib.Path(os.environ["TARGET_FILE"]).expanduser(),
target_gcs_bucket=os.environ["TARGET_GCS_BUCKET"],
target_gcs_path=os.environ["TARGET_GCS_PATH"],
headers=json.loads(os.environ["CSV_HEADERS"]),
rename_mappings=json.loads(os.environ["RENAME_MAPPINGS"]),
pipeline_name=os.environ["PIPELINE_NAME"],
)
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requests
google-cloud-storage
pandas
28 changes: 28 additions & 0 deletions datasets/san_francisco_trees/_terraform/provider.tf
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/**
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/


provider "google" {
project = var.project_id
impersonate_service_account = var.impersonating_acct
region = var.region
}

data "google_client_openid_userinfo" "me" {}

output "impersonating-account" {
value = data.google_client_openid_userinfo.me.email
}
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/**
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/


resource "google_bigquery_dataset" "san_francisco_trees" {
dataset_id = "san_francisco_trees"
project = var.project_id
description = "San Francisco Trees dataset"
}

output "bigquery_dataset-san_francisco_trees-dataset_id" {
value = google_bigquery_dataset.san_francisco_trees.dataset_id
}
39 changes: 39 additions & 0 deletions datasets/san_francisco_trees/_terraform/street_trees_pipeline.tf
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/**
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/


resource "google_bigquery_table" "street_trees" {
project = var.project_id
dataset_id = "san_francisco_trees"
table_id = "street_trees"

description = "San Francisco street trees table"




depends_on = [
google_bigquery_dataset.san_francisco_trees
]
}

output "bigquery_table-street_trees-table_id" {
value = google_bigquery_table.street_trees.table_id
}

output "bigquery_table-street_trees-id" {
value = google_bigquery_table.street_trees.id
}
23 changes: 23 additions & 0 deletions datasets/san_francisco_trees/_terraform/variables.tf
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/**
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/


variable "project_id" {}
variable "bucket_name_prefix" {}
variable "impersonating_acct" {}
variable "region" {}
variable "env" {}

26 changes: 26 additions & 0 deletions datasets/san_francisco_trees/dataset.yaml
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# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

dataset:
name: san_francisco_trees
friendly_name: san_francisco_trees
description: "San Francisco Trees dataset"
dataset_sources: ~
terms_of_use: ~


resources:
- type: bigquery_dataset
dataset_id: san_francisco_trees
description: "San Francisco Trees dataset"

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