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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,166 @@ | ||
| # DynamicCompile | ||
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| > 动态编译插件 | ||
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| ## 描述 | ||
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| 特别申明 | ||
| 您需要确保服务的安全性，并防止攻击者上传破坏性代码 | ||
| 提供一种可编程的方式来处理行，允许用户自定义任何业务行为，甚至基于现有行字段作为参数的RPC请求，或者通过从其他数据源检索相关数据来扩展字段。为了区分业务，您还可以定义多个转换进行组合， | ||
| 如果转换过于复杂，可能会影响性能 | ||
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| ## 属性 | ||
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| | name | type | required | default value | | ||
| |------------------|--------|----------|---------------| | ||
| | source_code | string | no | | | ||
| | compile_language | Enum | yes | | | ||
| | compile_pattern | Enum | no | SOURCE_CODE | | ||
| | absolute_path | string | no | | | ||
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| ### source_code [string] | ||
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| 代码必须实现两个方法：getInlineOutputColumns和getInlineOutputFieldValues。getInlineOutputColumns确定要添加或转换的列，原始列结构可以从CatalogTable中获得 | ||
| GetInlineOutputFieldValues决定您的列值。您可以满足任何要求，甚至可以完成RPC请求以基于原始列获取新值 | ||
| 如果有第三方依赖包，请将它们放在${SEATUNNEL_HOME}/lib中，如果您使用spark或flink，则需要将其放在相应服务的libs下。 | ||
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| ### common options [string] | ||
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| 转换插件的常见参数, 请参考 [Transform Plugin](common-options.md) 了解详情。 | ||
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| ### compile_language [Enum] | ||
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| Java中的某些语法可能不受支持，请参阅https://github.com/janino-compiler/janino | ||
| GROOVY，JAVA | ||
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| ### compile_pattern [Enum] | ||
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| SOURCE_CODE,ABSOLUTE_PATH | ||
| 选择 SOURCE_CODE，SOURCE_CODE 属性必填;选择ABSOLUTE_PATH，ABSOLUTE_PATH属性必填。 | ||
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| ### absolute_path [string] | ||
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| 服务器上Java或Groovy文件的绝对路径 | ||
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| ## Example | ||
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| 源端数据读取的表格如下： | ||
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| | name | age | card | | ||
| |----------|-----|------| | ||
| | Joy Ding | 20 | 123 | | ||
| | May Ding | 20 | 123 | | ||
| | Kin Dom | 20 | 123 | | ||
| | Joy Dom | 20 | 123 | | ||
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| ``` | ||
| transform { | ||
| DynamicCompile { | ||
| source_table_name = "fake" | ||
| result_table_name = "groovy_out" | ||
| compile_language="GROOVY" | ||
| compile_pattern="SOURCE_CODE" | ||
| source_code=""" | ||
| import org.apache.seatunnel.api.table.catalog.Column | ||
| import org.apache.seatunnel.transform.common.SeaTunnelRowAccessor | ||
| import org.apache.seatunnel.api.table.catalog.CatalogTable | ||
| import org.apache.seatunnel.api.table.catalog.PhysicalColumn; | ||
| import org.apache.seatunnel.api.table.type.*; | ||
| import java.util.ArrayList; | ||
| class demo { | ||
| public Column[] getInlineOutputColumns(CatalogTable inputCatalogTable) { | ||
| List<Column> columns = new ArrayList<>(); | ||
| PhysicalColumn destColumn = | ||
| PhysicalColumn.of( | ||
| "compile_language", | ||
| BasicType.STRING_TYPE, | ||
| 10, | ||
| true, | ||
| "", | ||
| ""); | ||
| columns.add(destColumn); | ||
| return columns.toArray(new Column[0]); | ||
| } | ||
| public Object[] getInlineOutputFieldValues(SeaTunnelRowAccessor inputRow) { | ||
| Object[] fieldValues = new Object[1]; | ||
| fieldValues[0]="GROOVY" | ||
| return fieldValues; | ||
| } | ||
| };""" | ||
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| } | ||
| } | ||
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| transform { | ||
| DynamicCompile { | ||
| source_table_name = "fake" | ||
| result_table_name = "java_out" | ||
| compile_language="JAVA" | ||
| compile_pattern="SOURCE_CODE" | ||
| source_code=""" | ||
| import org.apache.seatunnel.api.table.catalog.Column; | ||
| import org.apache.seatunnel.transform.common.SeaTunnelRowAccessor; | ||
| import org.apache.seatunnel.api.table.catalog.*; | ||
| import org.apache.seatunnel.api.table.type.*; | ||
| import java.util.ArrayList; | ||
| public Column[] getInlineOutputColumns(CatalogTable inputCatalogTable) { | ||
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| ArrayList<Column> columns = new ArrayList<Column>(); | ||
| PhysicalColumn destColumn = | ||
| PhysicalColumn.of( | ||
| "compile_language", | ||
| BasicType.STRING_TYPE, | ||
| 10, | ||
| true, | ||
| "", | ||
| ""); | ||
| return new Column[]{ | ||
| destColumn | ||
| }; | ||
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| } | ||
| public Object[] getInlineOutputFieldValues(SeaTunnelRowAccessor inputRow) { | ||
| Object[] fieldValues = new Object[1]; | ||
| fieldValues[0]="JAVA"; | ||
| return fieldValues; | ||
| } | ||
| """ | ||
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| } | ||
| } | ||
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| transform { | ||
| DynamicCompile { | ||
| source_table_name = "fake" | ||
| result_table_name = "groovy_out" | ||
| compile_language="GROOVY" | ||
| compile_pattern="ABSOLUTE_PATH" | ||
| absolute_path="""/tmp/GroovyFile""" | ||
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| } | ||
| } | ||
| ``` | ||
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| 那么结果表 `groovy_out` 中的数据将会更新为： | ||
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| | name | age | card | compile_language | | ||
| |----------|-----|------|------------------| | ||
| | Joy Ding | 20 | 123 | GROOVY | | ||
| | May Ding | 20 | 123 | GROOVY | | ||
| | Kin Dom | 20 | 123 | GROOVY | | ||
| | Joy Dom | 20 | 123 | GROOVY | | ||
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| 那么结果表 `java_out` 中的数据将会更新为： | ||
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| | name | age | card | compile_language | | ||
| |----------|-----|------|------------------| | ||
| | Joy Ding | 20 | 123 | JAVA | | ||
| | May Ding | 20 | 123 | JAVA | | ||
| | Kin Dom | 20 | 123 | JAVA | | ||
| | Joy Dom | 20 | 123 | JAVA | | ||
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| 更多复杂例子可以参考 | ||
| https://github.com/apache/seatunnel/tree/dev/seatunnel-e2e/seatunnel-transforms-v2-e2e/seatunnel-transforms-v2-e2e-part-2/src/test/resources/dynamic_compile/conf | ||
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| ## Changelog | ||
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18 changes: 18 additions & 0 deletions
18
...l-transforms-v2-e2e-part-2/src/test/resources/dynamic_compile/conf/mockserver-config.json
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,18 @@ | ||
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| // https://www.mock-server.com/mock_server/getting_started.html#request_matchers | ||
| [ | ||
| { | ||
| "httpRequest": { | ||
| "method": "GET", | ||
| "path": "/v1/compile" | ||
| }, | ||
| "httpResponse": { | ||
| "body": { | ||
| "compile": "seatunnel-compile" | ||
| }, | ||
| "headers": { | ||
| "Content-Type": "application/json" | ||
| } | ||
| } | ||
| } | ||
| ] |
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