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ff cleanup demo using the py api (#630)
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demo/feature_flag_cleanup_using_py_api/java/SampleClass.java
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// Copyright (c) 2023 Uber Technologies, Inc. | ||
// | ||
// <p>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 | ||
// <p>http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// <p>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. | ||
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class SampleJava { | ||
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public void sampleMethod(ExperimentInterface exp) { | ||
if (exp.isTreated("SAMPLE_STALE_FLAG")) { | ||
System.out.println("SAMPLE_STALE_FLAG is enabled"); | ||
} else { | ||
System.out.println("SAMPLE_STALE_FLAG is disabled"); | ||
} | ||
} | ||
} |
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from os.path import join, dirname, getmtime, exists | ||
from polyglot_piranha import Rule, RuleGraph, execute_piranha, PiranhaArguments | ||
import logging | ||
from logging import info | ||
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feature_flag_dir = join(dirname(__file__), "feature_flag_cleanup_using_py_api") | ||
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def run_java_ff_demo(): | ||
info("Running the stale feature flag cleanup demo for Java") | ||
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directory_path = join(feature_flag_dir, "java") | ||
modified_file_path = join(directory_path, "SampleClass.java") | ||
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update_is_treated = Rule( | ||
name="update_is_treated", | ||
# :[e] matches any node (its like a hole) and @flag_name refers to the substitution | ||
query='cs :[e].isTreated("@flag_name")', | ||
replace_node="*", | ||
# @treated refers to the substitution | ||
replace="@treated", | ||
groups={"replace_expression_with_boolean_literal"}, | ||
# This is a list of holes that need to be filled in for the rule to be applied | ||
holes={"treated", "flag_name"} | ||
) | ||
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args = PiranhaArguments( | ||
"java", | ||
paths_to_codebase=[directory_path], | ||
substitutions={"flag_name": "SAMPLE_STALE_FLAG", "treated": "true"}, | ||
rule_graph=RuleGraph(rules=[update_is_treated], edges=[]) | ||
) | ||
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output_summaries = execute_piranha(args) | ||
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old_mtime = getmtime(modified_file_path) | ||
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assert len(output_summaries) == 1 | ||
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for summary in output_summaries: | ||
assert len(summary.rewrites) > 0 | ||
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new_mtime = getmtime(modified_file_path) | ||
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assert old_mtime < new_mtime | ||
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FORMAT = "%(levelname)s %(name)s %(asctime)-15s %(filename)s:%(lineno)d %(message)s" | ||
logging.basicConfig(format=FORMAT) | ||
logging.getLogger().setLevel(logging.DEBUG) | ||
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run_java_ff_demo() | ||
print("Completed running the stale feature flag cleanup demos") |