将bzip2输出传输到tdbloader2 (Apache)，给出“文件不存在”

Question

我想通过管道将来自bzip2的输出作为输入来使用apache 3.9.0中的tbdloader2来填充TDB数据库。

我已经找到了Generating TDB Dataset from archive containing N-TRIPLES files，但是提议的解决方案对我没有用。

bzip2 -dc test.ttl.bz2 | tdbloader2 --loc=/pathto/TDBdatabase_test -- -

产生

20:08:01 INFO -- TDB Bulk Loader Start
20:08:01 INFO Data Load Phase
20:08:01 INFO Got 1 data files to load
20:08:01 INFO Data file 1: /home/user/-
File does not exist: /home/user/-
20:08:01 ERROR Failed during data phase

我得到了类似的结果(受https://unix.stackexchange.com/questions/16990/using-data-read-from-a-pipe-instead-than-from-a-file-in-command-options启发)

bzip2 -dc test.ttl.bz2 | tdbloader2 --loc=/pathto/TDBdatabase_test /dev/stdin 
20:34:45 INFO -- TDB Bulk Loader Start
20:34:45 INFO Data Load Phase
20:34:45 INFO Got 1 data files to load
20:34:45 INFO Data file 1: /proc/16256/fd/pipe:[92062]
File does not exist: /proc/16256/fd/pipe:[92062]
20:34:45 ERROR Failed during data phase

和

bzip2 -dc test.ttl.bz2 | tdbloader2 --loc=/pathto/TDBdatabase_test /dev/fd/0 
20:34:52 INFO -- TDB Bulk Loader Start
20:34:52 INFO Data Load Phase
20:34:52 INFO Got 1 data files to load
20:34:52 INFO Data file 1: /proc/16312/fd/pipe:[97432]
File does not exist: /proc/16312/fd/pipe:[97432]
20:34:52 ERROR Failed during data phase   

手动解压缩bz2文件，然后添加它，效果很好：

bzip2 -d test.ttl.bz2
tdbloader2 --loc=/pathto/TDBdatabase_test test.ttl

如果有人能给我指明正确的方向，那就太好了。

Answer 1

tdbloader2在命令行上接受bz2压缩文件：

tdbloader2 --loc=/pathto/TDBdatabase_test test.ttl.bz2

它不接受来自管道的输入-如果它接受了，那么它将不知道语法是Turtle，它从文件扩展名获得。