Example usage for weka.core WekaPackageManager PACKAGES_DIR

Introduction

In this page you can find the example usage for weka.core WekaPackageManager PACKAGES_DIR.

Prototype

File PACKAGES_DIR

To view the source code for weka.core WekaPackageManager PACKAGES_DIR.

Click Source Link

Document

The default packages directory

Usage

From source file:adams.core.management.WekaPackagesClassPathAugmenter.java

License:Open Source License

/**
 * Returns the classpath parts (jars, directories) to add to the classpath.
 * /* w ww . jav a 2s. co  m*/
 * @return      the additional classpath parts
 */
public synchronized String[] getClassPathAugmentation() {
    Environment env;
    String loadPackages;
    File[] contents;
    int i;
    Package toLoad;
    boolean load;

    m_Augmentations = new ArrayList<String>();

    // load packages?
    env = Environment.getSystemWide();
    loadPackages = env.getVariableValue("weka.core.loadPackages");
    if (loadPackages != null && loadPackages.equalsIgnoreCase("false"))
        return new String[0];

    // init packages
    WekaPackageManager.loadPackages(false);

    // try and load any jar files and add to the classpath
    contents = WekaPackageManager.PACKAGES_DIR.listFiles();
    for (i = 0; i < contents.length; i++) {
        if (contents[i].isDirectory()) {
            try {
                toLoad = WekaPackageManager.getInstalledPackageInfo(contents[i].getName());
                // Only perform the check against the current version of Weka if there exists 
                // a Description.props file
                if (toLoad != null) {
                    load = WekaPackageManager.loadCheck(toLoad, contents[i], System.err);
                    if (load)
                        loadPackageDirectory(contents[i]);
                }
            } catch (Exception ex) {
                ex.printStackTrace();
                System.err.println("[WEKA] Problem loading package " + contents[i].getName() + " skipping...");
            }
        }
    }

    return m_Augmentations.toArray(new String[m_Augmentations.size()]);
}

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From source file:distributed.spark.BaseSparkJobConfig.java

License:Open Source License

private void addWekaPackageLibrariesToContext(List<String> packageNames, JavaSparkContext context) {

    // first determine all the jars necessary
    File packagesDir = WekaPackageManager.PACKAGES_DIR;
    List<String> installLibraries = new ArrayList<String>();
    for (String packageDir : packageNames) {
        // package dir
        File current = new File(packagesDir.toString() + File.separator + packageDir);

        if (current.exists() && current.isDirectory()) {
            File[] contents = current.listFiles();
            if (contents != null) {
                for (File f : contents) {
                    if (f.isFile() && f.toString().toLowerCase().endsWith(".jar")) {
                        installLibraries.add(f.toString());
                    }//from  ww  w .j ava  2  s .  c o m
                }
            }
        }

        // lib dir
        File libDir = new File(current.toString() + File.separator + "lib");
        if (libDir.exists() && libDir.isDirectory()) {
            File[] libContents = libDir.listFiles();
            if (libContents != null) {
                for (File f : libContents) {
                    if (f.isFile() && f.toString().toLowerCase().endsWith(".jar")) {
                        installLibraries.add(f.toString());
                    }
                }
            }
        }
    }

    for (String jar : installLibraries) {
        context.addJar(jar);
    }
}

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