SUBMARINE-687. Create bash script to auto-generate typescript-sdk and…

… fix minor bugs

### What is this PR for?
It is a sub-task under [SUBMARINE-686. [Umbrella] Intergrate swagger to frontend](https://issues.apache.org/jira/projects/SUBMARINE/issues/SUBMARINE-686?filter=allopenissues)
1. To integrate swagger to the frontend, I wrote a script to auto-generate typescript-angular sdk.
2. Fix bug in `gen-sdk.sh`
3. Improve doc

### How should this be tested?
https://github.com/ByronHsu/submarine/actions/runs/386715559
### What type of PR is it?
[Improvement]

### What is the Jira issue?
https://issues.apache.org/jira/projects/SUBMARINE/issues/SUBMARINE-687

Author: ByronHsu <[email protected]>

Closes #464 from ByronHsu/SUBMARINE-687 and squashes the following commits:

dc8adbd [ByronHsu] Remove comments
f7a8468 [ByronHsu] create gen-ts-sdk and fix minor bugs

dev-support/pysubmarine/gen-sdk.sh

@@ -29,6 +29,7 @@ submarine_dist_exists=$(find -L "${SUBMARINE_PROJECT_PATH}/submarine-dist/target
 if [[ -z "${submarine_dist_exists}" ]]; then
   cd "${SUBMARINE_PROJECT_PATH}"
   mvn clean package -DskipTests
+  cd "$FWDIR" # go back to FWDIR after packaging
 fi
 
 echo "Generating openAPI 3.0 definition file ..."

dev-support/pysubmarine/gen-ts-sdk.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+
+FWDIR="$(cd "$(dirname "$0")"; pwd)"
+cd "$FWDIR"
+
+SUBMARINE_PROJECT_PATH="$FWDIR/../.."
+SWAGGER_JAR_URL="https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/4.3.1/openapi-generator-cli-4.3.1.jar"
+SWAGGER_CODEGEN_JAR="openapi-generator-cli.jar"
+SWAGGER_CODEGEN_CONF="swagger_config.json"
+SWAGGER_CODEGEN_FILE="openapi.json"
+SDK_OUTPUT_PATH="sdk/typescript-angular"
+
+submarine_dist_exists=$(find -L "${SUBMARINE_PROJECT_PATH}/submarine-dist/target" -name "submarine-dist-*.tar.gz")
+# Build source code if the package doesn't exist.
+if [[ -z "${submarine_dist_exists}" ]]; then
+  cd "${SUBMARINE_PROJECT_PATH}"
+  mvn clean package -DskipTests
+  cd "$FWDIR" # go back to FWDIR after packaging
+fi
+
+echo "Generating openAPI 3.0 definition file ..."
+# TODO(pingsutw): generate openapi.json without starting submarine server
+bash ${SUBMARINE_PROJECT_PATH}/submarine-dist/target//submarine-dist-*/submarine-dist-*/bin/submarine-daemon.sh start getMysqlJar
+sleep 5
+rm openapi.json
+wget http://localhost:8080/v1/openapi.json
+bash ${SUBMARINE_PROJECT_PATH}/submarine-dist/target//submarine-dist-*/submarine-dist-*/bin/submarine-daemon.sh stop
+
+openapi_generator_cli_exists=$(find -L "${FWDIR}" -name "openapi-generator-cli*")
+if [[ -z "${openapi_generator_cli_exists}" ]]; then
+  echo "Downloading the swagger-codegen JAR package ..."
+  wget -O "${SWAGGER_CODEGEN_JAR}" "${SWAGGER_JAR_URL}"
+fi
+
+echo "Generating typescript-angular SDK for Submarine ..."
+rm -r sdk/
+java -jar ${SWAGGER_CODEGEN_JAR} generate \
+     -i "${SWAGGER_CODEGEN_FILE}" \
+     -g typescript-angular \
+     -o ${SDK_OUTPUT_PATH} \
+     -c ${SWAGGER_CODEGEN_CONF}

docs/submarine-sdk/pysubmarine/development.md

@@ -66,7 +66,7 @@ pytest --cov=submarine -vs -m "e2e"
 > Before run this command in local, you should make sure the submarine server is running. 
 
 ### Generate python SDK from swagger
-We use [swagger-codegen](https://swagger.io/docs/open-source-tools/swagger-codegen/)
+We use [open-api generator](https://openapi-generator.tech/docs/installation/#jar)
 to generate pysubmarine client API that used to communicate with submarine server.
 
 If change below files, please run `./dev-support/pysubmarine/gen-sdk.sh`