Example usage for java.lang Math ceil

List of usage examples for java.lang Math ceil

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Introduction

In this page you can find the example usage for java.lang Math ceil.

Prototype

public static double ceil(double a)

Source Link

Document

Returns the smallest (closest to negative infinity) double value that is greater than or equal to the argument and is equal to a mathematical integer.

Usage

From source file:Main.java

public static int computeInitialSampleSize(BitmapFactory.Options options, int minSideLength,
        int maxNumOfPixels) {
    double w = options.outWidth;
    double h = options.outHeight;

    int lowerBound = (maxNumOfPixels == -1) ? 1 : (int) Math.ceil(Math.sqrt(w * h / maxNumOfPixels));
    int upperBound = (minSideLength == -1) ? 128
            : (int) Math.min(Math.floor(w / minSideLength), Math.floor(h / minSideLength));

    if (upperBound < lowerBound) {
        // return the larger one when there is no overlapping zone.
        return lowerBound;
    }/*from w  w w  . j a  v  a 2  s  . c o  m*/

    if ((maxNumOfPixels == -1) && (minSideLength == -1)) {
        return 1;
    } else if (minSideLength == -1) {
        return lowerBound;
    } else {
        return upperBound;
    }
}

From source file:com.ms.commons.file.impl.FileServiceImpl.java

/**
 * API??/*from   w w w.  j  a v a 2s .  co  m*/
 * 
 * @param url ?url
 * @param widths ??savePaths?????
 * @param savePaths ??widths
 */
public boolean reduceAllPicture(String url, Double quality, Integer[] widths, String[] savePaths) {
    if (url == null || url.trim().length() == 0 || widths == null || savePaths == null || widths.length == 0
            || widths.length != savePaths.length) {
        return false;
    }
    try {
        Map<String, Integer> imageBasicInfo = ImageUtil.getImageWH(url);
        int originalImageWidth = imageBasicInfo.get(ImageUtil.IMAGE_WIDTH);
        int originalImageHeight = imageBasicInfo.get(ImageUtil.IMAGE_HEIGHT);
        for (int i = 0, len = widths.length; i < len; i++) {
            double widthBo = (double) widths[i] / originalImageWidth;
            int height = (int) Math.ceil(widthBo * originalImageHeight);
            ImageUtil.scaleImage(url, widths[i], height, savePaths[i], quality);
        }
        return true;
    } catch (Exception e) {
        logger.error("", e);
        return false;
    }
}

From source file:gate.corpora.twitter.Population.java

/**
 * /*from  ww  w.  j a  v  a2 s .c o  m*/
 * @param corpus
 * @param inputUrl
 * @param encoding
 * @param contentKeys
 * @param featureKeys
 * @param tweetsPerDoc 0 = put them all in one document; otherwise the number per document
 * @throws ResourceInstantiationException
 */
public static void populateCorpus(final Corpus corpus, URL inputUrl, String encoding, List<String> contentKeys,
        List<String> featureKeys, int tweetsPerDoc) throws ResourceInstantiationException {
    try {
        InputStream input = inputUrl.openStream();
        List<String> lines = IOUtils.readLines(input, encoding);
        IOUtils.closeQuietly(input);

        // TODO: sort this out so it processes one at a time instead of reading the
        // whole hog into memory

        // For now, we assume the streaming API format (concatenated maps, not in a list)
        List<Tweet> tweets = TweetUtils.readTweetStrings(lines, contentKeys, featureKeys);

        int digits = (int) Math.ceil(Math.log10(tweets.size()));
        int tweetCounter = 0;
        Document document = newDocument(inputUrl, tweetCounter, digits);
        StringBuilder content = new StringBuilder();
        Map<PreAnnotation, Integer> annotandaOffsets = new HashMap<PreAnnotation, Integer>();

        for (Tweet tweet : tweets) {
            if ((tweetsPerDoc > 0) && (tweetCounter > 0) && ((tweetCounter % tweetsPerDoc) == 0)) {
                closeDocument(document, content, annotandaOffsets, corpus);
                document = newDocument(inputUrl, tweetCounter, digits);
                content = new StringBuilder();
                annotandaOffsets = new HashMap<PreAnnotation, Integer>();
            }

            int startOffset = content.length();
            content.append(tweet.getString());
            for (PreAnnotation preAnn : tweet.getAnnotations()) {
                annotandaOffsets.put(preAnn, startOffset);
            }

            content.append('\n');
            tweetCounter++;
        } // end of Tweet loop

        if (content.length() > 0) {
            closeDocument(document, content, annotandaOffsets, corpus);
        } else {
            Factory.deleteResource(document);
        }

        if (corpus.getDataStore() != null) {
            corpus.getDataStore().sync(corpus);
        }

    } catch (Exception e) {
        throw new ResourceInstantiationException(e);
    }
}

From source file:com.amazonaws.mturk.cmd.ResetAccount.java

private String[] getHits() {
    HIT[] hits = null;// w  w  w.j  a v a  2  s .  c  o  m
    List<String> ret = new ArrayList<String>();
    SearchHITsResult result = null;
    String[] responseGroup = new String[] { "Minimal", "HITDetail" };
    int pageSize = 50;

    totalNumberOfHits = service.getTotalNumHITsInAccount();

    double numPagesDouble = Math.ceil(new Double(totalNumberOfHits) / new Double(pageSize));
    int numPages = (new Double(numPagesDouble)).intValue();

    for (int i = 1; i <= numPages; i = i + 1) {
        result = service.searchHITs(SortDirection.Ascending, SearchHITsSortProperty.Enumeration, i, pageSize,
                responseGroup);

        hits = result.getHIT();
        if (hits != null) {
            for (HIT h : hits) {
                if (!h.getHITStatus().equals(HITStatus.Unassignable)) {
                    ret.add(h.getHITId());
                } else {
                    unassignableCount++;
                }
            }
        }
    }

    return (String[]) ret.toArray(new String[] {});
}

From source file:com.groupon.odo.proxylib.Utils.java

public static HashMap<String, Object> getJQGridJSON(Object[] rows, String rowName, int offset, int totalRows,
        int requestedRows) {
    HashMap<String, Object> returnVal = new HashMap<String, Object>();

    double totalPages = Math.ceil((double) totalRows / (double) requestedRows);

    returnVal.put("records", totalRows);
    returnVal.put("total", totalPages);
    returnVal.put("page", offset / requestedRows + 1);
    returnVal.put(rowName, rows);//from  w w w .  j a va  2  s. c o  m
    return returnVal;
}

From source file:com.wipro.ats.bdre.datagen.mr.RangeInputFormat.java

/**
 * Create the desired number of splits, dividing the number of rows
 * between the mappers.// w ww.  ja v  a  2s.com
 */
@Override
public List<InputSplit> getSplits(JobContext job) {
    long totalRows = getNumberOfRows(job);
    int numSplits = job.getConfiguration().getInt(Config.NUM_SPLITS_KEY, 1);
    LOG.info("Generating " + totalRows + " using " + numSplits);
    List<InputSplit> splits = new ArrayList<InputSplit>();
    long currentRow = 0;
    for (int split = 0; split < numSplits; ++split) {
        long goal = (long) Math.ceil(totalRows * (double) (split + 1) / numSplits);
        splits.add(new RangeInputSplit(currentRow, goal - currentRow));
        currentRow = goal;
    }
    return splits;
}

From source file:com.bellman.bible.android.view.util.buttongrid.LayoutDesigner.java

RowColLayout calculateLayout(List<ButtonInfo> buttonInfoList) {
    RowColLayout rowColLayout = new RowColLayout();
    int numButtons = buttonInfoList.size();

    // is it the list of bible books
    if (buttonInfoList.size() == 66 && !StringUtils.isNumeric(buttonInfoList.get(0).name)) {
        // bible books
        if (isPortrait()) {
            rowColLayout = BIBLE_BOOK_LAYOUT;
        } else {//  w  ww. j  a v  a 2 s  .c o  m
            rowColLayout = BIBLE_BOOK_LAYOUT_LAND;
        }
    } else {
        // a list of chapters or verses
        if (numButtons <= 50) {
            if (isPortrait()) {
                rowColLayout.rows = 10;
            } else {
                rowColLayout.rows = 5;
            }
        } else if (numButtons <= 100) {
            rowColLayout.rows = 10;
        } else {
            if (isPortrait()) {
                rowColLayout.rows = 15;
            } else {
                rowColLayout.rows = 10;
            }
        }
        rowColLayout.cols = (int) Math.ceil(((float) numButtons) / rowColLayout.rows);

        // if there are too few buttons/rows you just see a couple of large buttons on the screen so ensure there are enough rows to look nice
        int minCols = isPortrait() ? MIN_COLS : MIN_COLS_LAND;
        rowColLayout.cols = Math.max(minCols, rowColLayout.cols);
    }

    rowColLayout.columnOrder = isPortrait();

    Log.d(TAG, "Rows:" + rowColLayout.rows + " Cols:" + rowColLayout.cols);
    return rowColLayout;
}

From source file:com.trenako.web.infrastructure.PageLinksBuilder.java

private int calculateNumberOfPages(long nrOfElements, int pageSize) {
    double d = Math.ceil((double) nrOfElements / pageSize);
    return (int) d;
}

From source file:com.joliciel.lefff.LefffMemoryBaseImpl.java

public LefffMemoryBaseImpl(Map<String, List<LexicalEntry>> entryMap,
        Map<PosTagSet, LefffPosTagMapper> posTagMappers) {
    this.entryMap = entryMap;
    this.posTagMappers = posTagMappers;

    double requiredCapacity = 300000;
    this.lemmaEntryMap = new HashMap<String, List<LexicalEntry>>(((int) Math.ceil(requiredCapacity / 0.75)));
    LOG.debug("Constructing lemma entry map");
    for (List<LexicalEntry> entries : entryMap.values()) {
        for (LexicalEntry entry : entries) {
            LefffEntry lefffEntry = (LefffEntry) entry;
            String lemma = lefffEntry.getLefffLemma().getText();
            String complement = lefffEntry.getLefffLemma().getComplement();
            String key = lemma;/*from ww w .ja v  a  2s . com*/
            if (complement.length() > 0)
                key += "|" + complement;
            List<LexicalEntry> entriesPerLemma = lemmaEntryMap.get(key);
            if (entriesPerLemma == null) {
                entriesPerLemma = new ArrayList<LexicalEntry>();
                lemmaEntryMap.put(key, entriesPerLemma);
            }
            entriesPerLemma.add(entry);
        }
    }
}

From source file:com.baifendian.swordfish.common.utils.DateUtils.java

/**
 * ??//from   w w  w . jav a2 s.  c om
 *
 * @param d1
 * @param d2
 * @return
 */
public static long diffHours(Date d1, Date d2) {
    return (long) Math.ceil(diffMin(d1, d2) / 60.0);
}