Example usage for org.apache.commons.vfs2 FileObject getChild

Introduction

In this page you can find the example usage for org.apache.commons.vfs2 FileObject getChild.

Prototype

FileObject getChild(String name) throws FileSystemException;

Source Link

Document

Returns a child of this file.

Usage

From source file:de.innovationgate.wga.common.DesignDirectory.java

public static FileObject getDesignDefinitionFile(FileObject parent) throws FileSystemException {

    FileObject defFile = parent.getChild(DESIGN_DEFINITION_FILE);
    if (defFile == null) {
        defFile = parent.getChild(SYNCINFO_FILE);
    }/*from   w  w  w  .j  av a2  s .  co  m*/
    return defFile;

}

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From source file:edu.byu.nlp.data.docs.VectorDocumentDatasetBuilder.java

/**
 * See class description./*from w ww  .ja  v a 2 s .c o m*/
 * 
 * @throws FileSystemException if there is a problem finding the specified directories on the
 *     filesystem.
 */
public VectorDocumentDatasetBuilder(String basedir, String dataset, String split) throws FileSystemException {
    // TODO: consider taking the FileObject as a parameter
    FileSystemManager fsManager = VFS.getManager();
    if (fsManager instanceof DefaultFileSystemManager) {
        ((DefaultFileSystemManager) fsManager).setBaseFile(new File("."));
    }
    this.basedir = fsManager.resolveFile(basedir);
    Preconditions.checkNotNull(this.basedir, "%s cannot be resolved", basedir);
    Preconditions.checkArgument(this.basedir.getType() == FileType.FOLDER);
    FileObject indices = this.basedir.getChild("indices");
    Preconditions.checkNotNull(indices, "cannot find indices directory in %s", basedir);
    FileObject datasetDir = indices.getChild(dataset);
    Preconditions.checkNotNull(datasetDir, "cannot find index for dataset %s", dataset);
    this.indexDirectory = datasetDir.getChild(split);
    Preconditions.checkNotNull(indexDirectory, "cannot find split %s", split);
    Preconditions.checkArgument(indexDirectory.getType() == FileType.FOLDER);
}

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From source file:edu.byu.nlp.data.docs.DocumentDatasetBuilder.java

/**
 * See class description.//w  w  w .  jav  a  2 s . c o m
 * 
 * @throws FileSystemException if there is a problem finding the specified directories on the
 *     filesystem.
 */
public DocumentDatasetBuilder(String basedir, String dataset, String split,
        @Nullable Function<String, String> docTransform,
        @Nullable Function<String, Iterable<String>> sentenceSplitter,
        @Nullable Function<String, Iterable<String>> tokenizer,
        @Nullable Function<String, String> tokenTransform, FeatureSelectorFactory featureSelectorFactory,
        @Nullable Integer featureNormalizationConstant) throws FileSystemException {
    // TODO: consider taking the FileObject as a parameter
    FileSystemManager fsManager = VFS.getManager();
    if (fsManager instanceof DefaultFileSystemManager) {
        ((DefaultFileSystemManager) fsManager).setBaseFile(new File("."));
    }
    this.basedir = fsManager.resolveFile(basedir);
    Preconditions.checkNotNull(this.basedir, "%s cannot be resolved", basedir);
    Preconditions.checkArgument(this.basedir.getType() == FileType.FOLDER, this.basedir + " must be a folder");
    FileObject indices = this.basedir.getChild("indices");
    Preconditions.checkNotNull(indices, "cannot find indices directory in %s", basedir);
    FileObject datasetDir = indices.getChild(dataset);
    Preconditions.checkNotNull(datasetDir, "cannot find index for dataset %s", dataset);
    this.indexDirectory = datasetDir.getChild(split);
    Preconditions.checkNotNull(indexDirectory, "cannot find split %s", split);
    Preconditions.checkArgument(indexDirectory.getType() == FileType.FOLDER);
    this.docTransform = docTransform;
    this.sentenceSplitter = sentenceSplitter;
    this.tokenizer = tokenizer;
    this.tokenTransform = tokenTransform;
    this.featureSelectorFactory = featureSelectorFactory;
    this.featureNormalizationConstant = featureNormalizationConstant;
}

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From source file:org.pentaho.di.core.hadoop.HadoopConfigurationBootstrap.java

public synchronized List<HadoopConfigurationInfo> getHadoopConfigurationInfos()
        throws KettleException, ConfigurationException, IOException {
    List<HadoopConfigurationInfo> result = new ArrayList<>();
    FileObject hadoopConfigurationsDir = resolveHadoopConfigurationsDirectory();
    // If the folder doesn't exist, return an empty list
    if (hadoopConfigurationsDir.exists()) {
        String activeId = getActiveConfigurationId();
        String willBeActiveId = getWillBeActiveConfigurationId();
        for (FileObject childFolder : hadoopConfigurationsDir.getChildren()) {
            if (childFolder.getType() == FileType.FOLDER) {
                String id = childFolder.getName().getBaseName();
                FileObject configPropertiesFile = childFolder.getChild(CONFIG_PROPERTIES);
                if (configPropertiesFile.exists()) {
                    Properties properties = new Properties();
                    properties.load(configPropertiesFile.getContent().getInputStream());
                    result.add(new HadoopConfigurationInfo(id, properties.getProperty("name", id),
                            id.equals(activeId), willBeActiveId.equals(id)));
                }//from   w ww. ja v a2 s  .c o  m
            }
        }
    }
    return result;
}

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From source file:org.pentaho.hadoop.shim.HadoopConfigurationLocator.java

/**
 * Attempt to discover a valid Hadoop configuration from the provided folder.
 *
 * @param folder Folder that may represent a Hadoop configuration
 * @return A Hadoop configuration for the folder provided or null if none is found.
 * @throws ConfigurationException Error when loading the Hadoop configuration.
 *//*from  ww w .j a  v  a 2  s.  c  o  m*/
protected HadoopConfiguration loadHadoopConfiguration(FileObject folder) throws ConfigurationException {
    ShimProperties configurationProperties = new ShimProperties();
    try {
        FileObject configFile = folder.getChild(CONFIG_PROPERTIES_FILE);
        if (configFile != null) {
            configurationProperties.putAll(loadProperties(configFile));
        }
    } catch (Exception ex) {
        throw new ConfigurationException(BaseMessages.getString(PKG,
                "Error.UnableToLoadConfigurationProperties", CONFIG_PROPERTIES_FILE));
    }

    for (Entry<String, String> entry : configurationProperties.getPrefixedProperties("java.system")
            .entrySet()) {
        System.setProperty(entry.getKey(), entry.getValue());
    }

    try {
        List<URL> classpathElements = null;
        if (!isRunningOnCluster()) {
            // Parse all URLs from an optional classpath from the configuration file
            classpathElements = parseURLs(folder,
                    configurationProperties.getProperty(CONFIG_PROPERTY_CLASSPATH));
        }

        // Allow external configuration of classes to ignore
        String ignoredClassesProperty = configurationProperties.getProperty(CONFIG_PROPERTY_IGNORE_CLASSES);
        String[] ignoredClasses = null;
        if (!StringUtil.isEmpty(ignoredClassesProperty)) {
            ignoredClasses = ignoredClassesProperty.split(",");
        }

        // Pass our class loader in to the configurations' CL as its parent so it
        // can find the same
        // API classes we're using
        ClassLoader cl = createConfigurationLoader(folder, getClass().getClassLoader(), classpathElements,
                configurationProperties, ignoredClasses);
        verifyClasses(cl, configurationProperties.getProperty("required.classes"),
                configurationProperties.getProperty("name"));

        // Treat the Hadoop shim special. It is absolutely required for a Hadoop configuration.
        HadoopShim hadoopShim = null;
        List<PentahoHadoopShim> shims = new ArrayList<PentahoHadoopShim>();
        // Attempt to locate a shim within this folder
        for (Class<? extends PentahoHadoopShim> shimType : SHIM_TYPES) {
            PentahoHadoopShim s = locateServiceImpl(cl, shimType);
            if (s == null && shimType.getAnnotation(Required.class) != null) {
                logger.warn(BaseMessages.getString(PKG, "Error.MissingRequiredShim", shimType.getSimpleName()));
                // Do not continue to load the configuration if we are missing a required shim
                return null;
            }
            if (HadoopShim.class.isAssignableFrom(shimType)) {
                hadoopShim = (HadoopShim) s;
            } else {
                shims.add(s);
            }
        }
        String id = folder.getName().getBaseName();
        String name = configurationProperties.getProperty(CONFIG_PROPERTY_NAME, id);

        HadoopConfiguration config = new HadoopConfiguration(configurationProperties, folder, id, name,
                hadoopShim, shims.toArray(EMPTY_SHIM_ARRAY));

        // Register native libraries after everything else has been loaded successfully
        registerNativeLibraryPaths(configurationProperties.getProperty(CONFIG_PROPERTY_LIBRARY_PATH));

        hadoopShim.onLoad(config, fsm);
        return config;
    } catch (Throwable t) {
        throw new ConfigurationException(
                BaseMessages.getString(PKG, "Error.LoadingConfiguration") + " " + t.toString(), t);
    }
}

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From source file:org.pentaho.reporting.designer.extensions.pentaho.repository.model.RepositoryTreeModel.java

public static FileObject findNodeByName(final FileObject node, final String name) throws FileSystemException {
    if (node.getType() != FileType.FOLDER) {
        return null;
    }/*from w  ww .j a  v a  2s .  c om*/
    final FileObject child = node.getChild(name);
    if (child == null) {
        return null;
    }
    return child;
}

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