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https://issues.apache.org/jira/browse/CONFIGURATION-609?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Oliver Heger resolved CONFIGURATION-609.
----------------------------------------
Resolution: Fixed
Fix Version/s: 2.0
Fixed in subversion in revision 1700566.
The problem was that the FileHandler used to load the include file was newly
created and only initialized with the URL of the file to be loaded. Now the
handler is created as a copy from the original FileHandler and thus inherits
all properties like file system or location strategy.
> When using a VFSFileSystem on a PropertiesConfiguration, processing an
> include token defaults back to DefaultFileSystem
> -----------------------------------------------------------------------------------------------------------------------
>
> Key: CONFIGURATION-609
> URL: https://issues.apache.org/jira/browse/CONFIGURATION-609
> Project: Commons Configuration
> Issue Type: Bug
> Components: File reloading
> Affects Versions: 2.0
> Environment: OSX using Eclipse/Maven
> Reporter: Patrick Ethier
> Fix For: 2.0
>
>
> I have uploaded two files to HDFS.
> -----
> bob.properties:
> ==
> include=fred.properties
> ==
> ----
> fred.properties
> ==
> key=value
> ==
> ---
> If I load fred.properties and evaluated the "key", value is returned as
> expected. If I load bob.properties, I get a ConfigurationException.
> Here is the code snippet, please change setFileName() to reflect both cases:
> FileSystem fsTest = new VFSFileSystem();
> fsTest.setFileOptionsProvider(new HDFSOptionsProvider());
>
> Parameters params = new Parameters();
> FileBasedConfigurationBuilder<FileBasedConfiguration> builder =
> new
> FileBasedConfigurationBuilder<FileBasedConfiguration>(PropertiesConfiguration.class)
> .configure(params.fileBased()
> .setLocationStrategy(new FileSystemLocationStrategy())
> .setBasePath("hdfs://localhost:8020/user/myusername")
> .setFileName("bob.properties")
> .setFileSystem(fsTest));
>
> Configuration config;
> try {
> config = builder.getConfiguration();
> System.out.println(config.getString("key"));
> } catch (ConfigurationException e) {
> e.printStackTrace();
> }
> --------------------
> HDFSOptionsProvider.java:
> ==
> public class HDFSOptionsProvider implements FileOptionsProvider {
> @Override
> public Map<String, Object> getOptions() {
> Map<String, Object> opts = new HashMap<String, Object>();
> opts.put("DefaultProvider", HdfsFileProvider.class);
> return opts;
> }
> }
> ==
> -------------
> Here is the Exception trace:
> 15/08/25 14:14:46 INFO impl.StandardFileSystemManager: Using "/tmp/vfs_cache"
> as temporary files store.
> 15/08/25 14:14:47 WARN util.NativeCodeLoader: Unable to load native-hadoop
> library for your platform... using builtin-java classes where applicable
> org.apache.commons.configuration2.ex.ConfigurationException: Unable to load
> the configuration from the URL
> hdfs://localhost:8020/user/myusername/fred.properties
> at
> org.apache.commons.configuration2.io.DefaultFileSystem.getInputStream(DefaultFileSystem.java:56)
> at
> org.apache.commons.configuration2.io.FileHandler.load(FileHandler.java:979)
> at
> org.apache.commons.configuration2.io.FileHandler.load(FileHandler.java:740)
> at
> org.apache.commons.configuration2.PropertiesConfiguration.loadIncludeFile(PropertiesConfiguration.java:1419)
> at
> org.apache.commons.configuration2.PropertiesConfiguration.propertyLoaded(PropertiesConfiguration.java:571)
> at
> org.apache.commons.configuration2.PropertiesConfigurationLayout.load(PropertiesConfigurationLayout.java:494)
> at
> org.apache.commons.configuration2.PropertiesConfiguration.read(PropertiesConfiguration.java:509)
> at
> org.apache.commons.configuration2.io.FileHandler.loadFromReader(FileHandler.java:1124)
> at
> org.apache.commons.configuration2.io.FileHandler.loadFromTransformedStream(FileHandler.java:1110)
> at
> org.apache.commons.configuration2.io.FileHandler.loadFromStream(FileHandler.java:1049)
> at
> org.apache.commons.configuration2.io.FileHandler.load(FileHandler.java:980)
> at
> org.apache.commons.configuration2.io.FileHandler.load(FileHandler.java:963)
> at
> org.apache.commons.configuration2.io.FileHandler.load(FileHandler.java:692)
> at
> org.apache.commons.configuration2.builder.FileBasedConfigurationBuilder.initFileHandler(FileBasedConfigurationBuilder.java:312)
> at
> org.apache.commons.configuration2.builder.FileBasedConfigurationBuilder.initResultInstance(FileBasedConfigurationBuilder.java:291)
> at
> org.apache.commons.configuration2.builder.FileBasedConfigurationBuilder.initResultInstance(FileBasedConfigurationBuilder.java:60)
> at
> org.apache.commons.configuration2.builder.BasicConfigurationBuilder.createResult(BasicConfigurationBuilder.java:421)
> at
> org.apache.commons.configuration2.builder.BasicConfigurationBuilder.getConfiguration(BasicConfigurationBuilder.java:285)
> at com.secureops.config.TestLoadConf.main(TestLoadConf.java:33)
> Caused by: java.io.IOException: VFS URLs can only be used with VFS APIs
> at
> org.apache.commons.configuration2.io.VFSFileSystem$VFSURLStreamHandler.openConnection(VFSFileSystem.java:368)
> at java.net.URL.openConnection(URL.java:975)
> at java.net.URL.openStream(URL.java:1041)
> at
> org.apache.commons.configuration2.io.DefaultFileSystem.getInputStream(DefaultFileSystem.java:52)
> ... 18 more
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