Example usage for java.util Collections reverse

Introduction

In this page you can find the example usage for java.util Collections reverse.

Prototype

@SuppressWarnings({ "rawtypes", "unchecked" })
public static void reverse(List<?> list)

Source Link

Document

Reverses the order of the elements in the specified list.

This method runs in linear time.

Usage

From source file:gov.nih.nci.cabig.caaers.CaaersDbTestCase.java

private List<OpenSessionInViewInterceptor> reverseInterceptors() {
    List<OpenSessionInViewInterceptor> interceptors = interceptors();
    Collections.reverse(interceptors);
    return interceptors;
}

From source file:es.pode.modificador.presentacion.configurar.cambios.navegarArbolCurricular.NavegarArbolCurricularControllerImpl.java

public void navegar(ActionMapping mapping, NavegarForm form, HttpServletRequest request,
        HttpServletResponse response) throws Exception {

    // De momento en nombreTaxonomia pasamos un null, ms adelante quizs se ponga un combo para escoger una.
    // El srv por debajo si hay null mete una clave que fuentesTaxonomicas interpreta como que queremos el vigente.
    try {//  w  w w .ja v  a 2 s  . co  m
        TaxonomiaVO tx = null;
        if (form.getIdTermino() != null && form.getIdTermino().trim().length() > 0) {
            tx = this.getSrvHerramientaModificacion().navegarArbolCurricular(form.getIdTermino(), null,
                    LdapUserDetailsUtils.getIdioma());
            form.setTaxonomia(tx);
        } else {
            //para el primer caso
            tx = this.getSrvHerramientaModificacion().navegarArbolCurricular(null, null,
                    LdapUserDetailsUtils.getIdioma());
        }
        //          Es necesario hacer un reverse del taxonPath para mostrar correctamente la rama del arbol:
        if (tx.getTaxonPath() != null && tx.getTaxonPath().length > 1) {
            if (logger.isDebugEnabled())
                logger.debug("Invierto el orden de taxonPath");
            List taxonPath = Arrays.asList(tx.getTaxonPath());
            Collections.reverse(taxonPath);
            tx.setTaxonPath((TaxonVO[]) taxonPath.toArray(new TaxonVO[taxonPath.size()]));
        }
        form.setTaxonomia(tx);
    } catch (RuntimeException e) {
        logger.error("Excepcion en el servicio de herramienta modificacion al navegar: ", e);
        saveErrorMessage(request, "areaCurricular.error.inesperado");
    }
    logger.info("Taxonomia genereada correctamente");
    form.setIdiomaBuscadorBackingList(
            IdiomasBuscadorSingleton.getInstance().obtenerIdiomas(LdapUserDetailsUtils.getIdioma()),
            "idLocalizacion", "nombre");
}

From source file:net.henryco.opalette.application.programs.sub.programs.bFilter.EdFilter.java

private static List<EdFilter> loadFilterListFromJSON() {

    /*/*w w w.  j av  a2 s  .  c o  m*/
            
    {    "type": "t255" | "t01" ,
       "filters": [{
    "name": "filter1",
    "color": "#FFFFFFFF",
    "contrast": "0",
    "gamma": "1",
    "hue": "0",
    "saturation": "0",
    "lightness": "0",
    "bw": "false",
    "min": ["0", "0", "0"],
    "max": ["255", "255", "255"],
    "add": ["0", "0", "0"]
       }]
    }
    */

    List<EdFilter> filterList = new ArrayList<>();
    filterList.add(getDefaultFilter());
    String file = GodConfig.TEXTURE_FILTERS_DATA_FILE;
    InputStream in = EdFilter.class.getClassLoader().getResourceAsStream(file);
    BufferedReader reader = new BufferedReader(new InputStreamReader(in));
    StringBuilder builder = new StringBuilder();
    try {
        String line;
        while ((line = reader.readLine()) != null)
            builder.append(line).append('\n');
        in.close();

        JSONObject data = new JSONObject(builder.toString());
        String type = "t01";
        try {
            type = data.getString("type");
        } catch (Exception ignored) {
        }

        final OPallFunction<Float, Float> corrector;
        final boolean type255 = type.equalsIgnoreCase("t255");
        if (type255)
            corrector = f -> f / 255f;
        else
            corrector = Float::floatValue;

        ArrayList<String> nameList = new ArrayList<>();

        JSONArray filters = data.getJSONArray("filters");
        for (int i = 0; i < filters.length(); i++) {
            JSONObject filter = filters.getJSONObject(i);
            String f_name = filter.getString("name");
            if (nameList.contains(f_name))
                throw new RuntimeException("FILTER NAME: " + f_name + " is already exist at position: " + i);
            nameList.add(f_name);
            boolean bw = false;
            float contrast = 1f;
            float gamma = 1f;
            int col = 0xFFFFFFFF;
            float light = 0f;
            float sat = 0f;
            float hue = 0f;

            try {
                sat = (float) filter.getDouble("saturation");
                if (type255)
                    sat /= GodConfig.NORM_RANGE;
            } catch (Exception ignored) {
            }
            try {
                hue = (float) filter.getDouble("hue");
                if (type255)
                    hue /= GodConfig.HUE_CLAMP_RANGE;
            } catch (Exception ignored) {
            }
            try {
                light = (float) filter.getDouble("lightness");
                if (type255)
                    light /= GodConfig.NORM_RANGE;
            } catch (Exception ignored) {
            }
            try {
                col = Color.parseColor(filter.getString("color"));
            } catch (Exception ignored) {
            }
            try {
                contrast = (float) filter.getDouble("contrast");
                if (type255)
                    contrast /= GodConfig.NORM_RANGE;
                contrast += 1f;
            } catch (Exception ignored) {
            }
            try {
                gamma = (float) filter.getDouble("gamma");
            } catch (Exception ignored) {
            }
            try {
                bw = filter.getBoolean("bw");
            } catch (Exception ignored) {
            }

            OPallFunction<float[], String> colorFunc = s -> {
                try {
                    JSONArray color = filter.getJSONArray(s);
                    float r = corrector.apply((float) color.getDouble(0));
                    float g = corrector.apply((float) color.getDouble(1));
                    float b = corrector.apply((float) color.getDouble(2));
                    return new float[] { r, g, b };
                } catch (JSONException e) {
                    return null;
                }
            };

            float[] add = colorFunc.apply("add");
            float[] min = colorFunc.apply("min");
            float[] max = colorFunc.apply("max");

            EdFilter extFilter = new EdFilter(f_name, col, gamma, contrast, hue, sat, light, bw);
            if (add != null)
                extFilter.setAdd(add[0], add[1], add[2]);
            if (min != null)
                extFilter.setMin(min[0], min[1], min[2]);
            if (max != null)
                extFilter.setMax(max[0], max[1], max[2]);

            filterList.add(extFilter);
        }
    } catch (IOException | JSONException e) {
        e.printStackTrace();
    }
    Collections.reverse(filterList);
    return filterList;
}

From source file:com.sillelien.dollar.api.types.DollarList.java

@NotNull
@Override/*from   w  w w  .j a  v a 2  s .com*/
@Guarded(NotNullGuard.class)
public var $multiply(@NotNull var rhs) {
    var v = rhs._fixDeep();
    ArrayList<var> list = new ArrayList<>();
    final int max = Math.abs(v.toInteger());
    if (max > MAX_LIST_MULTIPLIER) {
        return DollarFactory.failure(ErrorType.MULTIPLIER_TOO_LARGE,
                "Cannot multiply a list by a value greater than " + MAX_LIST_MULTIPLIER, false);
    }
    for (int i = 0; i < max; i++) {
        list.addAll(this.list.mutable());
    }
    if (v.negative()) {
        Collections.reverse(list);
    }
    return DollarFactory.fromValue(list, errors(), v.errors());
}

From source file:com.ibm.bluej.commonutil.PrecisionRecallThreshold.java

private static String stringPRCurve(ArrayList<Pair<Double, Boolean>> pr, double total, int buckets) {
    StringBuffer buf = new StringBuffer();
    Collections.shuffle(pr);/*from w w w.  java2  s  .c  o m*/
    Collections.sort(pr, new FirstPairComparator(null));
    Collections.reverse(pr);
    double[] correct = new double[buckets];
    double[] answered = new double[buckets];
    double[] thresholds = new double[buckets];
    int bucketNdx = 0;
    double cummulativeCorrect = 0;
    double auc = 0;
    double allPositive = 0;
    for (Pair<Double, Boolean> p : pr) {
        if (p.second)
            allPositive += 1;
    }

    double maxF = 0;
    for (int i = 0; i < pr.size(); ++i) {
        if (i >= (1 + bucketNdx) * pr.size() / buckets && bucketNdx < buckets - 1) {
            thresholds[bucketNdx] = pr.get(i).first;
            ++bucketNdx;
        }
        for (int j = bucketNdx; j < buckets; ++j) {
            ++answered[j];
            if (pr.get(i).second) {
                ++correct[j];
            }
        }
        if (pr.get(i).second) {
            ++cummulativeCorrect;
            auc += cummulativeCorrect / ((i + 1) * allPositive);
        }

        double tp = cummulativeCorrect;
        double fp = (i + 1) - cummulativeCorrect;
        double fn = allPositive - cummulativeCorrect;
        double precision = (double) (tp) / (tp + fp);
        double recall = (double) (tp) / (tp + fn);
        double f1 = 2 * precision * recall / (precision + recall);
        if (f1 > maxF)
            maxF = f1;
    }

    for (int i = 0; i < buckets; ++i) {
        double precision = correct[i] / answered[i];
        double recall = correct[i] / total;
        double FScore = 2 * precision * recall / (precision + recall);
        buf.append(
                "P = " + Lang.dblStr(precision) + " R = " + Lang.dblStr(recall) + " F = " + Lang.dblStr(FScore)
                        + " (C = " + (int) answered[i] + " T = " + Lang.dblStr(thresholds[i]) + ")" + "\n");
    }
    buf.append("AUC = " + auc + "\n"); //not sure if computed correctly
    buf.append("Max F-Score = " + maxF + "\n");
    return buf.toString();
}

From source file:edu.iu.m.news.service.NewsServiceImpl.java

private NewsStream convertRssToNewsStream(Rss rss, boolean sample) {
    int sampleCount = SAMPLE_COUNT_DEFAULT;
    if (sample) {
        try {/*from w  ww.  j av a  2 s .c o m*/
            sampleCount = Integer.parseInt(configParamService.findValueByName(SAMPLE_COUNT));
        } catch (Exception e) {
        }
    }

    NewsStream newsStream = new NewsStream();

    newsStream.setTitle(rss.getTitle());
    newsStream.setDescription(rss.getFormDescription());

    List<NewsArticle> articles = new ArrayList<NewsArticle>();
    int count = 0;
    for (RssItem item : rss.getRssItems()) {
        NewsArticle article = new NewsArticle();
        article.setTitle(item.getTitle());
        article.setPublishDate(item.getPublishDate());
        // article.setArticleId(item.getRssItemId().toString());
        article.setLink(item.getLink());
        article.setThumbnailImageUrl(item.getEnclosureUrl());
        article.setDescription(item.getDescription());
        article.setArticleId(item.getLinkUrlEncoded());
        articles.add(article);
        count++;
        if (sample && count == sampleCount)
            break;
    }

    Collections.sort(articles); // sort the articles in ascending order
    Collections.reverse(articles); // reverse the list so the newest appears
    // first

    List<NewsDay> dayArticles = new ArrayList<NewsDay>();

    Calendar date = Calendar.getInstance();
    Calendar previousDate = Calendar.getInstance();
    SimpleDateFormat longDate = new SimpleDateFormat("EEEEE, MMMMM dd");
    String groupDateString;
    String currentDateString = null;
    List<NewsArticle> articleListForDate = null;
    for (NewsArticle article : articles) {
        date.setTime(article.getPublishDate());
        groupDateString = longDate.format(date.getTime());
        if (!groupDateString.equals(currentDateString)) {
            if (currentDateString != null && currentDateString != "") {
                NewsDay newsDay = new NewsDay();
                newsDay.setArticles(articleListForDate);
                newsDay.setFormattedDate(currentDateString);
                dayArticles.add(newsDay);
            }
            articleListForDate = new ArrayList<NewsArticle>();
            currentDateString = groupDateString;
            previousDate.setTime(article.getPublishDate());
        }
        articleListForDate.add(article);
    }
    NewsDay newsDay = new NewsDay();
    newsDay.setArticles(articleListForDate);
    newsDay.setFormattedDate(currentDateString);
    dayArticles.add(newsDay);

    newsStream.setArticles(dayArticles);
    return newsStream;
}

From source file:fr.paris.lutece.plugins.asynchronousupload.service.AbstractAsynchronousUploadHandler.java

/**
 * {@inheritDoc}//from  w ww .  ja v  a  2s .  c  o  m
 */
@Override
public void doRemoveFile(HttpServletRequest request, String strFieldName) {
    if (hasRemoveFlag(request, strFieldName)) {
        HttpSession session = request.getSession(false);

        if (session != null) {
            // Some previously uploaded files were deleted
            // Build the prefix of the associated checkboxes
            String strPrefix = getUploadCheckboxPrefix() + strFieldName;

            // Look for the checkboxes in the request
            Enumeration<String> enumParamNames = request.getParameterNames();
            List<Integer> listIndexes = new ArrayList<Integer>();

            while (enumParamNames.hasMoreElements()) {
                String strParamName = enumParamNames.nextElement();

                if (strParamName.startsWith(strPrefix)) {
                    // Get the index from the name of the checkbox
                    listIndexes.add(Integer.parseInt(strParamName.substring(strPrefix.length())));
                }
            }

            Collections.sort(listIndexes);
            Collections.reverse(listIndexes);

            for (int nIndex : listIndexes) {
                removeFileItem(strFieldName, session, nIndex);
            }
        }
    }
}

From source file:dk.dr.radio.data.Grundata.java

public void leguElsendojn(String radioTxt) {
      String kapo = null;// www.java 2s . c o  m
      for (String unuo : radioTxt.split("\n\r?\n")) {
          unuo = unuo.trim();
          //Log.d("Unuo: "+unuo);
          if (unuo.length() == 0) {
              continue;
          }
          if (kapo == null) {
              kapo = unuo;
          } else {
              try {
                  Udsendelse e = new Udsendelse();
                  String[] x = unuo.split("\n");
                  /*
                   3ZZZ en Esperanto
                   2011-09-29
                   http://www.melburno.org.au/3ZZZradio/mp3/2011-09-26.3ZZZ.radio.mp3
                   Anonco : el retmesa?o de Floral Martorell  Katastrofo e Vinilkosmo/ Eurokka Kanto : informo pri la kompaktdisko Hiphopa Kompilo 2  Miela obsedo  Legado: el la verko de Ken Linton Kanako el Kananam apitro 12  Stranga ?ardeno  Lez el Monato de agusto /septembro  Tantamas ?topi?oj  de Ivo durwael Karlo el Monato  Eksplofas la popola kolero  [...]
                   */
                  e.kanalSlug = x[0];
                  e.startTidKl = x[1];
                  e.startTid = datoformato.parse(x[1]);
                  e.sonoUrl = x[2];
                  e.beskrivelse = x[3];

                  Kanal k = kanalFraNavn.get(e.kanalSlug);
                  // Jen problemo. "Esperanta Retradio" nomi?as "Peranto" en
                  // http://esperanto-radio.com/radio.txt . Ni solvas tion serante anka por la kodo
                  // "kodo": "peranto",
                  // "nomo": "Esperanta Retradio",

                  if (k == null) {
                      k = kanalFraKode.get(e.kanalSlug.toLowerCase());
                      if (k != null)
                          e.kanalSlug = k.navn;
                  }

                  if (k == null) {
                      Log.d("Nekonata kanalnomo - ALDONAS GXIN: " + e.kanalSlug);
                      k = new Kanal();
                      k.eo_json = new JSONObject();
                      k.kode = k.navn = e.kanalSlug;
                      k.eo_datumFonto = "aldonita de radio.txt";
                      kanalFraKode.put(k.kode, k);
                      kanalFraNavn.put(k.navn, k);
                      kanaler.add(k);
                  } else if (k.eo_datumFonto == null) {
                      k.eo_datumFonto = "radio.txt";
                  }
                  //Log.d("Aldonas elsendon "+e.toString());
                  k.udsendelser.add(e);
              } catch (Exception e) {
                  Log.e("Ne povis legi unuon: " + unuo, e);
              }
          }
      }

      for (Kanal k : kanaler)
          Collections.reverse(k.udsendelser);
  }

From source file:com.wavemaker.runtime.ws.salesforce.SalesforceSupport.java

public JSONObject getPickList(String objName, FieldType currentField, JSONObject fieldAndValuePairs,
        JSONObject carrier) throws Exception {

    List<FieldType> fields = getFields(objName);

    Map<String, FieldType> fieldMap = new HashMap<String, FieldType>();

    for (FieldType fld : fields) {
        fieldMap.put(fld.getName(), fld);
    }/*from  ww  w  .  java2s .  c om*/

    List<FieldType> controlPath = getControlPath(currentField, fieldMap, null);

    // if no controller fields are found, get the pick list for the current field and return.
    if (controlPath == null) {
        List<PicklistEntryType> picklistValues = currentField.getPicklistValues();
        if (picklistValues != null && picklistValues.size() > 0) {
            return prepareJSONObject(picklistValues, fieldAndValuePairs, currentField);
        } else {
            return null;
        }
    }

    Collections.reverse(controlPath);

    if (carrier == null) {
        carrier = new JSONObject();
    }

    JSONObject plist = null;
    for (int i = 0; i < controlPath.size(); i++) {
        FieldType fld = controlPath.get(i);

        if (fld.getType().value().equals("boolean")) {
            continue;
        }
        if (carrier.containsKey(downShiftFirstChar(fld.getName()))) {
            continue;
        }

        FieldType controller;

        // the first field does not have any controller
        controller = i == 0 ? null : controlPath.get(i - 1);
        plist = getRestrictedPickList(objName, fld, controller, fieldAndValuePairs);

        // do not add the last entry to carrier bcz it will be added in the caller (getPiclLists)
        if (i < controlPath.size() - 1) {
            carrier.put(downShiftFirstChar(currentField.getName()), plist);
        }
    }

    return plist;
}

From source file:org.berlin.batch.bom.DataMessageFinder.java

public List<String> queryConnectRules() {
    // First, a random selection to determine which rule to use //
    final Random rand = new Random(System.currentTimeMillis());
    // 1 = backwards
    // 2 = random values
    // 3(default) = forward
    int rule = 3;
    final double r = rand.nextDouble();
    if (r >= 0.8) {
        rule = 1;/*from w  w  w.  j  av a 2s  .co  m*/
    } else if (r <= 0.32) {
        rule = 2;
    } else {
        rule = 3;
    } // End of the if - else //

    if (this.forceRequestRule != -1) {
        rule = this.forceRequestRule;
    }
    final List<String> ruleData = new ArrayList<String>();
    if (2 == rule) {
        // Reversed list //
        for (final String term : POPULAR_TERMS) {
            ruleData.add(term);
        } // End of the for //
        Collections.reverse(ruleData);
    } else if (1 == rule) {
        // Random list //
        final Random rand2 = new Random();
        for (String s : POPULAR_TERMS) {
            final int ni = rand2.nextInt(POPULAR_TERMS.length - 1);
            ruleData.add(POPULAR_TERMS[ni]);
        } // End of the for //
    } else {
        // Forward list //
        for (final String term : POPULAR_TERMS) {
            ruleData.add(term);
        } // End of the for //
    } // End of the if - else //
    return ruleData;
}