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hdfs writer adds overwirte mode

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daizihao 2020-10-14 20:35:19 +08:00
parent 3fd9c0a79f
commit 809cffc5f6
1 changed files with 5 additions and 2 deletions
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7
hdfswriter/src/main/java/com/alibaba/datax/plugin/writer/hdfswriter/HdfsWriter.java
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@ -81,10 +81,10 @@ public class HdfsWriter extends Writer {
//writeMode check
this.writeMode = this.writerSliceConfig.getNecessaryValue(Key.WRITE_MODE, HdfsWriterErrorCode.REQUIRED_VALUE);
writeMode = writeMode.toLowerCase().trim();
Set<String> supportedWriteModes = Sets.newHashSet("append", "nonconflict");
Set<String> supportedWriteModes = Sets.newHashSet("append", "nonconflict", "overwrite");
if (!supportedWriteModes.contains(writeMode)) {
throw DataXException.asDataXException(HdfsWriterErrorCode.ILLEGAL_VALUE,
String.format("仅支持append, nonConflict两种模式, 不支持您配置的 writeMode 模式 : [%s]",
String.format("仅支持append, nonConflict, overwrite三种模式, 不支持您配置的 writeMode 模式 : [%s]",
writeMode));
}
this.writerSliceConfig.set(Key.WRITE_MODE, writeMode);
@ -179,6 +179,9 @@ public class HdfsWriter extends Writer {
LOG.error(String.format("冲突文件列表为: [%s]", StringUtils.join(allFiles, ",")));
throw DataXException.asDataXException(HdfsWriterErrorCode.ILLEGAL_VALUE,
String.format("由于您配置了writeMode nonConflict,但您配置的path: [%s] 目录不为空, 下面存在其他文件或文件夹.", path));
}else if ("overwrite".equalsIgnoreCase(writeMode) && isExistFile) {
LOG.info(String.format("由于您配置了writeMode overwrite, [%s] 下面的内容将被覆盖重写", path));
hdfsHelper.deleteFiles(existFilePaths);
}
}else{
throw DataXException.asDataXException(HdfsWriterErrorCode.ILLEGAL_VALUE,