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doris/fe
Socrates 94986fc574 branch-2.1: [fix](multi-catalog) Fix bug: "Can not create a Path from an empty string" (#49382) (#49641)
### What problem does this PR solve?
Problem Summary:
In HiveMetaStoreCache, the function FileInputFormat.setInputPaths is
used to set input paths. However, this function splits paths using
commas, which is not the expected behavior. As a result, when partition
values contain commas, it leads to incorrect path parsing and potential
errors.
```java
  public static void setInputPaths(JobConf conf, String org.apache.hadoop.shaded.com.aSeparatedPaths) {
    setInputPaths(conf, StringUtils.stringToPath(
                        getPathStrings(org.apache.hadoop.shaded.com.aSeparatedPaths)));
  }
```
To prevent FileInputFormat.setInputPaths from splitting paths by commas,
we use another overloaded version of the method. Instead of passing a
comma-separated string, we explicitly pass a Path object, ensuring that
partition values containing commas are handled correctly.
```java
  public static void setInputPaths(JobConf conf, Path... inputPaths) {
    Path path = new Path(conf.getWorkingDirectory(), inputPaths[0]);
    StringBuffer str = new StringBuffer(StringUtils.escapeString(path.toString()));
    for(int i = 1; i < inputPaths.length;i++) {
      str.append(StringUtils.COMMA_STR);
      path = new Path(conf.getWorkingDirectory(), inputPaths[i]);
      str.append(StringUtils.escapeString(path.toString()));
    }
    conf.set(org.apache.hadoop.shaded.org.apache.hadoop.mapreduce.lib.input.
      FileInputFormat.INPUT_DIR, str.toString());
  }
```

### Release note

None
2025-03-29 09:13:43 +08:00
..

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# fe-common

This module is used to store some common classes of other modules.

# spark-dpp

This module is Spark DPP program, used for Spark Load function.
Depends: fe-common

# fe-core

This module is the main process module of FE.
Depends: fe-common, spark-dpp