Policy Creator UI Design
General Mode
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Policy Editor (General Mode) mainly supports some general alert template and provide easy-to-use template form and general native eagle policy in backend using the submitted form data and policy template. |
Backend Support
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enum PolicyTemplateScope { General,Embedded, // Template Interface and GeneralPolicyTemplateDesc for API interface GeneralPolicyTemplate { Class<?> getType(); // org.apache.eagle.policy.GeneralPolicyTemplate Customized: possible to support save certain ad-hoc policy as template } interface PolicyTemplate { String getName(); // "SINGLE_SOURCE_THRESHOLD_ALERT" String getDescription(); // "An alert policy template consuming single stream source." String getCreateFormgetFormPath(); // "/path/to/create/form" String getEditForm <Class extends PolicyTemplateConfig> getConfigType(); // "/path/to/create/form" String PolicyTemplateScope getViewFormgetScope(); // "/path/to/create/form" GeneralPolicyConfigPolicyDefinition renderConfigrender(StringPolicyTemplateConfig); } abstract class PolicyTemplateConfig PolicyDefinition renderPolicy(GeneralPolicyConfig);{ internal: String } //final Staticclass TemplatePolicyTemplateEntity Metadata{ GeneralPolicyEntity { uuid: UUID, config: GeneralPolicyTemplateConfigPolicyTemplateConfig, template: "org.apache.eagle.policy.GeneralPolicyTemplatePolicyTemplate" } |
General Mode
Info |
---|
Policy Editor (General Mode) mainly supports some general alert template and provide easy-to-use template form and general native eagle policy in backend using the submitted form data and policy template. |
Backend Support
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// Template Interface and GeneralPolicyTemplateDesc for API abstract class GeneralPolicyTemplate extends PolicyTemplate{ final PolicyTemplateScope getScope() { return PolicyTemplateScope.General; } } // GeneralPolicyTemplateConfig GeneralPolicyTemplateConfig{ internal: String, // json string } // Case Example SingleStreamThresholdPolicyTemplateConfig extend GeneralPolicyTemplateConfigPolicyTemplateConfig { from: HDFS_AUDIT_SRC_STREAM, partition: { type: "GROUPBY",field: "USER" }, window: { type: "SLIDING_WINDOW", configs: { length: "20 hour" } }, aggregators: [ { function: "SUM", field: "USER", alias: "USER_COUNT" } ], filters: [ { field: "USER_COUNT", function: ">", value: 20 }, { field: "USER", function: "NOT IN", value: "HADOOP, HDFS, MAPRED" } ] } |
Embedded Mode
Backend Support
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abstract class EmbeddedPolicyTemplate extends PolicyTemplate{
final PolicyTemplateScope getScope() {
return PolicyTemplateScope.Embedded;
}
}
// Case Example
TOO_LARGE_DELETION_ALERT_CONFIG extend PolicyTemplateConfig {
users: List<String>,
hdfsSizeThreshhold: Long
} |
Advanced Mode
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