Example usage for org.apache.commons.lang ArrayUtils isEmpty

Introduction

In this page you can find the example usage for org.apache.commons.lang ArrayUtils isEmpty.

Prototype

public static boolean isEmpty(boolean[] array) 

Source Link

Document

Checks if an array of primitive booleans is empty or null.

Usage

From source file:org.apache.kylin.cube.cli.CubeSignatureRefresher.java

public void update() {
    logger.info("Reloading Cube Metadata from store: "
            + store.getReadableResourcePath(ResourceStore.CUBE_DESC_RESOURCE_ROOT));
    CubeDescManager cubeDescManager = CubeDescManager.getInstance(config);
    List<CubeDesc> cubeDescs;
    if (ArrayUtils.isEmpty(cubeNames)) {
        cubeDescs = cubeDescManager.listAllDesc();
    } else {/*from   w  ww . java2 s  . c  o m*/
        String[] names = cubeNames[0].split(",");
        if (ArrayUtils.isEmpty(names))
            return;
        cubeDescs = Lists.newArrayListWithCapacity(names.length);
        for (String name : names) {
            cubeDescs.add(cubeDescManager.getCubeDesc(name));
        }
    }
    for (CubeDesc cubeDesc : cubeDescs) {
        updateCubeDesc(cubeDesc);
    }

    verify();
}

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From source file:org.apache.kylin.cube.CubeDescUpgrader.java

private void updateDimensions(CubeDesc oldModel, org.apache.kylin.cube.model.CubeDesc newModel) {
    List<org.apache.kylin.cube.model.v1.DimensionDesc> oldDimensions = oldModel.getDimensions();

    List<DimensionDesc> newDimensions = Lists.newArrayList();
    newModel.setDimensions(newDimensions);

    int dimId = 0;
    for (org.apache.kylin.cube.model.v1.DimensionDesc dim : oldDimensions) {

        DimensionDesc newDim = null;/*  www  .j  av a 2  s.c o  m*/
        // if a dimension defines "column", "derived" and "hierarchy" at the same time, separate it into three dimensions;

        boolean needNameSuffix = false;
        if (dim.getColumn() != null && !"{FK}".equals(dim.getColumn())) {
            //column on fact table
            newDim = newDimensionDesc(dim, dimId++, dim.getName());
            newDimensions.add(newDim);
            newDim.setColumn(new String[] { dim.getColumn() });
            needNameSuffix = true;
        } else if (ArrayUtils.isEmpty(dim.getDerived()) && ArrayUtils.isEmpty(dim.getHierarchy())) {
            // user defines a lookup table, but didn't use any column other than the pk, in this case, convert to use fact table's fk
            newDim = newDimensionDesc(dim, dimId++, dim.getName());
            newDimensions.add(newDim);
            newDim.setTable(getMetadataManager().appendDBName(newModel.getFactTable()));

            newDim.setColumn(dim.getJoin().getForeignKey());
        }

        if (!ArrayUtils.isEmpty(dim.getDerived())) {
            newDim = newDimensionDesc(dim, dimId++, dim.getName() + (needNameSuffix ? "_DERIVED" : ""));
            newDimensions.add(newDim);
            newDim.setDerived(dim.getDerived());
            newDim.setColumn(null); // derived column must come from a lookup table; in this case the fk will be the dimension column, no need to explicitly declare it;
            needNameSuffix = true;
        }

        if (!ArrayUtils.isEmpty(dim.getHierarchy())) {
            newDim = newDimensionDesc(dim, dimId++, dim.getName() + (needNameSuffix ? "_HIERARCHY" : ""));
            newDimensions.add(newDim);

            newDim.setHierarchy(true);

            List<String> columns = Lists.newArrayList();
            for (HierarchyDesc hierarch : dim.getHierarchy()) {
                String col = hierarch.getColumn();
                columns.add(col);
            }

            newDim.setColumn(columns.toArray(new String[columns.size()]));
        }

    }
}

---

From source file:org.apache.kylin.storage.hbase.cube.v2.coprocessor.endpoint.CubeVisitService.java

private void updateRawScanByCurrentRegion(RawScan rawScan, HRegion region, int shardLength) {
    if (shardLength == 0) {
        return;//  ww  w . j  a  v a2  s.c o m
    }
    byte[] regionStartKey = ArrayUtils.isEmpty(region.getRegionInfo().getStartKey()) ? new byte[shardLength]
            : region.getRegionInfo().getStartKey();
    Bytes.putBytes(rawScan.startKey, 0, regionStartKey, 0, shardLength);
    Bytes.putBytes(rawScan.endKey, 0, regionStartKey, 0, shardLength);
}

---

From source file:org.apache.kylin.storage.hbase.ii.coprocessor.endpoint.IIEndpoint.java

private Scan prepareScan(IIProtos.IIRequest request, HRegion region) throws IOException {
    Scan scan = new Scan();

    scan.addColumn(IIDesc.HBASE_FAMILY_BYTES, IIDesc.HBASE_QUALIFIER_BYTES);
    scan.addColumn(IIDesc.HBASE_FAMILY_BYTES, IIDesc.HBASE_DICTIONARY_BYTES);

    if (request.hasTsRange()) {
        Range<Long> tsRange = (Range<Long>) SerializationUtils
                .deserialize(HBaseZeroCopyByteString.zeroCopyGetBytes(request.getTsRange()));
        byte[] regionStartKey = region.getStartKey();
        if (!ArrayUtils.isEmpty(regionStartKey)) {
            shard = BytesUtil.readUnsigned(regionStartKey, 0, IIKeyValueCodec.SHARD_LEN);
        } else {/*from w w  w. java  2 s.  c  o m*/
            shard = 0;
        }
        logger.info("Start key of the region is: " + BytesUtil.toReadableText(regionStartKey)
                + ", making shard to be :" + shard);

        if (tsRange.hasLowerBound()) {
            //differentiate GT and GTE seems not very beneficial
            Preconditions.checkArgument(shard != -1, "Shard is -1!");
            long tsStart = tsRange.lowerEndpoint();
            logger.info("ts start is " + tsStart);

            byte[] idealStartKey = new byte[IIKeyValueCodec.SHARD_LEN + IIKeyValueCodec.TIMEPART_LEN];
            BytesUtil.writeUnsigned(shard, idealStartKey, 0, IIKeyValueCodec.SHARD_LEN);
            BytesUtil.writeLong(tsStart, idealStartKey, IIKeyValueCodec.SHARD_LEN,
                    IIKeyValueCodec.TIMEPART_LEN);
            logger.info("ideaStartKey is(readable) :" + BytesUtil.toReadableText(idealStartKey));
            Result result = region.getClosestRowBefore(idealStartKey, IIDesc.HBASE_FAMILY_BYTES);
            if (result != null) {
                byte[] actualStartKey = Arrays.copyOf(result.getRow(),
                        IIKeyValueCodec.SHARD_LEN + IIKeyValueCodec.TIMEPART_LEN);
                scan.setStartRow(actualStartKey);
                logger.info("The start key is set to " + BytesUtil.toReadableText(actualStartKey));
            } else {
                logger.info("There is no key before ideaStartKey so ignore tsStart");
            }
        }

        if (tsRange.hasUpperBound()) {
            //differentiate LT and LTE seems not very beneficial
            Preconditions.checkArgument(shard != -1, "Shard is -1");
            long tsEnd = tsRange.upperEndpoint();
            logger.info("ts end is " + tsEnd);

            byte[] actualEndKey = new byte[IIKeyValueCodec.SHARD_LEN + IIKeyValueCodec.TIMEPART_LEN];
            BytesUtil.writeUnsigned(shard, actualEndKey, 0, IIKeyValueCodec.SHARD_LEN);
            BytesUtil.writeLong(tsEnd + 1, actualEndKey, IIKeyValueCodec.SHARD_LEN,
                    IIKeyValueCodec.TIMEPART_LEN);//notice +1 here
            scan.setStopRow(actualEndKey);
            logger.info("The stop key is set to " + BytesUtil.toReadableText(actualEndKey));
        }
    }

    return scan;
}

---

From source file:org.apache.log.extractor.App.java

private App() throws IOException, ConfigurationException {
    logger.info("***Starting App***");
    initConfiguration();//w  w w. j  av  a2 s .c  o m
    final String[] logLocations = config.getStringArray("log.oozie.location");
    if (ArrayUtils.isEmpty(logLocations)) {
        throw new ConfigurationException("Please set property: " + "log.oozie.location");
    }
    logFiles = getLogFiles(logLocations);
    if (logFiles.size() > config.getInt("log.oozie.max.files")) {
        logger.error("Too many log files: " + logFiles);
        return;
    }
    String writeMayBe = config.getString("log.oozie.write.location");
    if (StringUtils.isEmpty(writeMayBe)) {
        if (logLocations.length == 1 && new File(logLocations[0]).isDirectory()) {
            writeLocation = logLocations[0] + "/oozie_logs/";
        } else {
            throw new ConfigurationException("Please set property: " + "log.oozie.write.location");
        }
    } else {
        writeLocation = writeMayBe;
    }
}

---

From source file:org.apache.niolex.commons.codec.IntegerUtil.java

/**
  * Check whether the target is in the argument array.
  *// w ww. j a va 2s .  com
  * @param target the target need be checked
  * @param args the argument array
  * @return true if found, false otherwise
  */
public static final boolean isIn(int target, int... args) {
    if (ArrayUtils.isEmpty(args)) {
        return false;
    }
    for (int i : args) {
        if (target == i)
            return true;
    }
    return false;
}

---

From source file:org.apache.niolex.commons.codec.StringUtil.java

/**
 * Check whether the target is in the argument array.
 *
 * @param target the target need be checked
 * @param caseSensitive true if case sensitive
 * @param args the argument array/* w  w w .j a v a2s  . co m*/
 * @return true if found, false otherwise
 */
public static final boolean isIn(String target, boolean caseSensitive, String... args) {
    if (ArrayUtils.isEmpty(args)) {
        return false;
    }
    for (String s : args) {
        if (caseSensitive) {
            if (target.equals(s)) {
                return true;
            }
        } else {
            if (target.equalsIgnoreCase(s)) {
                return true;
            }
        }
    }
    return false;
}

---

From source file:org.apache.niolex.commons.codec.StringUtil.java

/**
 * Test whether the target contains any of the string in the argument array.
 *
 * @param target the target need be checked
 * @param args the argument array//  ww w . j  a  va 2s  .c om
 * @return true if found, false otherwise
 */
public static final boolean containsAny(String target, String... args) {
    if (ArrayUtils.isEmpty(args)) {
        return false;
    }
    for (String s : args) {
        if (target.contains(s)) {
            return true;
        }
    }
    return false;
}

---

From source file:org.apache.niolex.commons.file.DirUtil.java

/**
 * Delete the directory or file represented by this file.
 *
 * @param file the file to be deleted//ww  w  . j  ava 2 s  . com
 * @param byForce whether we should recursively delete children.
 * @return true if deleted or file not exist, false otherwise
 */
public static final boolean delete(File file, boolean byForce) {
    if (!file.exists()) {
        return true;
    }
    if (file.isDirectory()) {
        File[] files = file.listFiles();
        if (ArrayUtils.isEmpty(files)) {
            return file.delete();
        }
        if (byForce) {
            for (File f : files) {
                delete(f, true);
            }
            return file.delete();
        } else {
            return false;
        }
    } else {
        return file.delete();
    }
}

---

From source file:org.apache.niolex.commons.mail.EmailUtil.java

/**
 * Send an email.//  ww  w .  j ava 2  s. co  m
 * ????
 *
 * @param from the email sender
 * @param tos the email receivers array
 * @param ccs the carbon copiers array
 * @param title the email title
 * @param text the email body
 * @param attachments the email attachments list
 * @param priority priority from 1-5 the smaller is higher
 * @param isHtml is the text in HTML format or not
 * @param encoding the encoding of email, i.e. "GBK"?"UTF-8"
 * @throws MailException
 * @throws MessagingException
 */
public static void sendMail(String from, String[] tos, String[] ccs, String title, String text,
        List<Pair<String, InputStreamSource>> attachments, String priority, boolean isHtml, String encoding)
        throws MailException, MessagingException {
    MimeMessage mimeMessage = mailSender.createMimeMessage();
    MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage, true, encoding);

    messageHelper.setFrom(from);
    messageHelper.setBcc(from);

    if (ArrayUtils.isEmpty(tos)) {
        throw new IllegalArgumentException("<tos> can not be null or empty!");
    } else {
        messageHelper.setTo(tos);
    }

    if (!ArrayUtils.isEmpty(ccs)) {
        messageHelper.setCc(ccs);
    }

    messageHelper.setSubject(title);
    messageHelper.setText(text, isHtml);

    if (attachments != null) {
        for (Pair<String, InputStreamSource> pair : attachments) {
            messageHelper.addAttachment(pair.a, pair.b);
        }
    }

    mimeMessage = messageHelper.getMimeMessage();
    if (priority != null) {
        mimeMessage.addHeader("X-Priority", priority);
    }

    mailSender.send(mimeMessage);
}

---

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