Example usage for java.util ArrayList clear

List of usage examples for java.util ArrayList clear

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Introduction

In this page you can find the example usage for java.util ArrayList clear.

Prototype

public void clear()

Source Link

Document

Removes all of the elements from this list.

Usage

From source file:controllers.FileHandler.java

/**
 * brief: parse string from log file to tokens
 * @param strRawString  - string to be tokenized
 * @return              - string list of tokens
 *///from  w  w w.ja  v a  2  s .  co m
private static ArrayList<String> ParseLogFile(String strRawString) {
    ArrayList<String> strList = new ArrayList<>();
    strList.clear();

    if (strRawString.matches(".*\\[.*\\].*")) {
        String[] tokens = strRawString.split("\\s*-\\s*");
        strList.add(tokens[0]);
        strList.add(tokens[1]);
    } else {
        strList.add("");
        strList.add(strRawString);
    }

    return strList;
}

From source file:Main.java

public static <T> ArrayList<T> shuffle(ArrayList<T> population, int sample) {
    ArrayList<T> newList = new ArrayList<T>();
    ArrayList<T> ret = new ArrayList<T>();
    newList.addAll(population);// w w w.jav a 2s .co m

    Collections.shuffle(newList);
    ret.addAll(newList);
    for (int i = sample; i < ret.size(); i++) {
        ret.remove(i);
        i--;
    }
    newList.clear();
    return ret;
}

From source file:com.imolinfo.offline.CrossFoldValidation.java

public static void invokePipeline(JavaSparkContext jsc)
        throws IOException, ClassNotFoundException, InstantiationException, IllegalAccessException {

    JavaRDD<Document> trainingSet, testSet;
    Logger.getLogger("org").setLevel(Level.OFF);
    Logger.getLogger("akka").setLevel(Level.OFF);

    // CARICAMENTO DEL DATASET E PARTIZIONE IN PIU PEZZETTINI
    Properties prop = GlobalVariable.getInstance().getProperties();

    DocumentProvider tp = (DocumentProvider) Class.forName(prop.getProperty("sourceClass")).newInstance();
    JavaRDD<Document> corpus = tp.getTextFromDs(jsc,
            prop.getProperty("splitDatasetPath") + "/" + prop.getProperty("corpus"));
    DocumentStandardCleaner tc = new DocumentStandardCleaner();
    corpus = tc.cleanData(corpus);/*from   w w  w .ja  va 2 s .  c om*/
    corpus.cache();
    ArrayList<JavaRDD<Document>[]> LabelPortionSplits = new ArrayList<JavaRDD<Document>[]>();
    for (final String label : GlobalVariable.getInstance().getIntLabelMap().values()) {
        JavaRDD<Document> labelPortion = corpus.filter(new Function<Document, Boolean>() {

            @Override
            public Boolean call(Document arg0) throws Exception {
                return arg0.getLabel().equals(label);
            }
        });
        labelPortion.cache();
        JavaRDD<Document>[] labelPortionSplit = labelPortion
                .randomSplit(new double[] { 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1 });
        LabelPortionSplits.add(labelPortionSplit);
    }

    // metto in cache tutti dataset piccolini divisi per label e poi partizionati secondo il fattore K...
    for (JavaRDD<Document>[] line : LabelPortionSplits) {
        for (int j = 0; j < line.length; j++) {
            line[j].cache();
        }
    }
    JavaRDD<Document>[] splitDataset = LabelPortionSplits.get(0);
    ArrayList<JavaRDD<Document>> otherSplits = new ArrayList<JavaRDD<Document>>();

    String result = "";
    // combino i dataset in modo da realizzare partizioni stratificati
    for (int i = 0; i < splitDataset.length; i++) {
        otherSplits.clear();
        for (int j = 1; j < LabelPortionSplits.size(); j++) {
            JavaRDD<Document>[] target = LabelPortionSplits.get(j);
            target[i].cache();
            otherSplits.add(target[i]);
        }
        splitDataset[i] = jsc.union(splitDataset[i], otherSplits);
        splitDataset[i].cache();
    }
    ArrayList<JavaRDD<Document>> trainingSetList = new ArrayList<JavaRDD<Document>>();
    // metto assieme le partizioni stratificate in modo da iterare training e testset
    List<JavaRDD<Document>> splitDocuments = Arrays.asList(splitDataset);
    for (int i = 0; i < splitDocuments.size(); i++) {
        testSet = splitDocuments.get(i);
        trainingSet = corpus.subtract(testSet);
        result = result + "\n" + trainAndTest(jsc, trainingSet, testSet);

    }
    System.out.println(result);

}

From source file:Main.java

public static <T> ArrayList<T> rand(ArrayList<T> population, int nSamplesNeeded) {
    Random r = new Random();
    ArrayList<T> ret = new ArrayList<T>();

    if (nSamplesNeeded > population.size() / 2) {
        ArrayList<T> original = new ArrayList<T>();
        original = population;/*w ww .  ja  v a2  s  .  c om*/

        while (nSamplesNeeded > 0) {
            int rand = r.nextInt(original.size());
            if (rand < nSamplesNeeded) {
                ret.add(original.get(rand));
                original.remove(rand);
                nSamplesNeeded--;
            }
        }
        original.clear();
    } else
        ret = shuffle(population, nSamplesNeeded);

    return ret;
}

From source file:edu.isistan.carcha.util.PluginUtil.java

/**
 * Removes the duplicates.//ww w  .j  a va  2s .c  om
 *
 * @param concerns the concerns
 */
public static void removeDuplicates(List<Entity> concerns) {
    ArrayList<Entity> ret = new ArrayList<Entity>();
    HashSet<Entity> hash = new HashSet<Entity>();
    hash.addAll(concerns);
    ret.clear();
    ret.addAll(hash);
}

From source file:com.dnielfe.manager.utils.SortUtils.java

public static ArrayList<String> sortList(ArrayList<String> content, String current) {
    int len = content != null ? content.size() : 0;
    int index = 0;
    String[] items = new String[len];
    content.toArray(items);// w ww  .  j av a2  s. c  o m

    switch (Settings.mSortType) {
    case SORT_ALPHA:
        Arrays.sort(items, Comparator_ALPH);
        content.clear();

        for (String a : items) {
            content.add(a);
        }
        break;
    case SORT_SIZE:
        Arrays.sort(items, Comparator_SIZE);
        content.clear();

        for (String a : items) {
            if (new File(current + "/" + a).isDirectory())
                content.add(index++, a);
            else
                content.add((String) a);
        }
        break;
    case SORT_TYPE:
        Arrays.sort(items, Comparator_TYPE);
        content.clear();

        for (String a : items) {
            if (new File(current + "/" + a).isDirectory())
                content.add(index++, a);
            else
                content.add(a);
        }
        break;

    case SORT_DATE:
        Arrays.sort(items, Comparator_DATE);
        content.clear();

        for (String a : items) {
            if (new File(current + "/" + a).isDirectory())
                content.add(index++, a);
            else
                content.add(a);
        }
        break;
    }

    return content;
}

From source file:com.lovejoy777sarootool.rootool.utils.SortUtils.java

public static void sortList(ArrayList<String> content, String current) {
    int len = content != null ? content.size() : 0;
    int index = 0;
    String[] items = new String[len];
    content.toArray(items);//from w  ww  .j ava2s  . c  o  m

    switch (Settings.mSortType) {
    case SORT_ALPHA:
        Arrays.sort(items, Comparator_ALPH);
        content.clear();

        Collections.addAll(content, items);
        break;
    case SORT_SIZE:
        Arrays.sort(items, Comparator_SIZE);
        content.clear();

        for (String a : items) {
            if (new File(current + "/" + a).isDirectory())
                content.add(index++, a);
            else
                content.add(a);
        }
        break;
    case SORT_TYPE:
        Arrays.sort(items, Comparator_TYPE);
        content.clear();

        for (String a : items) {
            if (new File(current + "/" + a).isDirectory())
                content.add(index++, a);
            else
                content.add(a);
        }
        break;

    case SORT_DATE:
        Arrays.sort(items, Comparator_DATE);
        content.clear();

        for (String a : items) {
            if (new File(current + "/" + a).isDirectory())
                content.add(index++, a);
            else
                content.add(a);
        }
        break;
    }

    if (Settings.reverseListView()) {
        Collections.reverse(content);
    }
}

From source file:com.dnielfe.manager.utils.SimpleUtils.java

@NotNull
public static ArrayList<String> listFiles(String path) {
    ArrayList<String> mDirContent = new ArrayList<String>();
    boolean showhidden = Settings.mShowHiddenFiles;

    if (!mDirContent.isEmpty())
        mDirContent.clear();

    final File file = new File(path);

    if (file.exists() && file.canRead()) {
        String[] list = file.list();
        int len = list.length;

        // add files/folder to ArrayList depending on hidden status
        for (int i = 0; i < len; i++) {
            if (!showhidden) {
                if (list[i].toString().charAt(0) != '.')
                    mDirContent.add(path + "/" + list[i]);
            } else {
                mDirContent.add(path + "/" + list[i]);
            }//  www.  ja v a2 s.c  om
        }
    } else {
        try {
            mDirContent = RootCommands.listFiles(file.getAbsolutePath(), showhidden);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    // sort files with a comparator
    SortUtils.sortList(mDirContent, file.getPath());
    return mDirContent;
}

From source file:de.fuberlin.agcsw.heraclitus.svont.client.core.ChangeLog.java

public static void updateChangeLog(OntologyStore os, SVoNtProject sp, String user, String pwd) {

    //load the change log from server

    try {/*from   ww  w .j  ava 2 s  .co m*/

        //1. fetch Changelog URI

        URI u = sp.getChangelogURI();

        //2. search for change log owl files
        DefaultHttpClient client = new DefaultHttpClient();

        client.getCredentialsProvider().setCredentials(
                new AuthScope(u.getHost(), AuthScope.ANY_PORT, AuthScope.ANY_SCHEME),
                new UsernamePasswordCredentials(user, pwd));

        HttpGet httpget = new HttpGet(u);

        System.out.println("executing request" + httpget.getRequestLine());

        ResponseHandler<String> responseHandler = new BasicResponseHandler();
        String response = client.execute(httpget, responseHandler);
        System.out.println(response);
        List<String> files = ChangeLog.extractChangeLogFiles(response);

        ArrayList<ChangeLogElement> changelog = sp.getChangelog();
        changelog.clear();

        //4. sort the revisions

        for (int i = 0; i < files.size(); i++) {
            String fileName = files.get(i);
            System.out.println("rev sort: " + fileName);
            int rev = Integer.parseInt(fileName.split("\\.")[0]);
            changelog.add(new ChangeLogElement(URI.create(u + fileName), rev));
        }

        Collections.sort(changelog, new SortChangeLogsElementsByRev());

        //show sorted changelog

        System.out.print("[");
        for (ChangeLogElement cle : changelog) {
            System.out.print(cle.getRev() + ",");
        }
        System.out.println("]");

        //5. map revision with SVN revisionInformations
        mapRevisionInformation(os, sp, changelog);

        //6. load change log files
        System.out.println("Load Changelog Files");
        for (String s : files) {
            System.out.println(s);
            String req = u + s;
            httpget = new HttpGet(req);
            response = client.execute(httpget, responseHandler);
            //            System.out.println(response);

            // save the changelog File persistent
            IFolder chlFold = sp.getChangeLogFolder();
            IFile chlFile = chlFold.getFile(s);
            if (!chlFile.exists()) {
                chlFile.create(new ByteArrayInputStream(response.getBytes()), true, null);
            }

            os.getOntologyManager().loadOntology(new ReaderInputSource(new StringReader(response)));

        }
        System.out.println("Changelog Ontology successfully loaded");

        //Show loaded onts
        Set<OWLOntology> onts = os.getOntologyManager().getOntologies();
        for (OWLOntology o : onts) {
            System.out.println("loaded ont: " + o.getURI());
        }

        //7 refresh possibly modified Mainontology
        os.getOntologyManager().reloadOntology(os.getMainOntologyLocalURI());

        //8. recalculate Revision Information of the concept of this ontology
        sp.setRevisionMap(createConceptRevisionMap(os, sp));
        sp.saveRevisionMap();

        sp.saveRevisionInformationMap();

        //9. show MetaInfos on ConceptTree

        ConceptTree.refreshConceptTree(os, os.getMainOntologyURI());
        OntologyInformation.refreshOntologyInformation(os, os.getMainOntologyURI());

        //shutdown http connection

        client.getConnectionManager().shutdown();

    } catch (ClientProtocolException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    } catch (IOException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    } catch (OWLOntologyCreationException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (OWLReasonerException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (SVNException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (SVNClientException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (ParseException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (CoreException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

}

From source file:org.apache.hadoop.hive.ql.exec.AnalysisOperator.java

private static void deepCopyElements(Object[] keys, ObjectInspector[] keyObjectInspectors,
        ArrayList<Object> result, ObjectInspectorCopyOption copyOption) {
    result.clear();
    for (int i = 0; i < keys.length; i++) {
        result.add(ObjectInspectorUtils.copyToStandardObject(keys[i], keyObjectInspectors[i], copyOption));
    }/*w ww  . j a  v a 2 s.  c  o  m*/
}