Example usage for java.io DataInputStream readInt

Introduction

In this page you can find the example usage for java.io DataInputStream readInt.

Prototype

public final int readInt() throws IOException 

Source Link

Document

See the general contract of the readInt method of DataInput.

Usage

From source file:com.ning.arecibo.util.timeline.times.TimelineCoderImpl.java

@Override
public int countTimeBytesSamples(final byte[] timeBytes) {
    int count = 0;
    try {/*from  ww  w  .ja  v a 2 s  .co m*/
        final ByteArrayInputStream byteStream = new ByteArrayInputStream(timeBytes);
        final DataInputStream byteDataStream = new DataInputStream(byteStream);
        int opcode;
        while ((opcode = byteDataStream.read()) != -1) {
            if (opcode == TimelineOpcode.FULL_TIME.getOpcodeIndex()) {
                byteDataStream.readInt();
                count++;
            } else if (opcode <= TimelineOpcode.MAX_DELTA_TIME) {
                count++;
            } else if (opcode == TimelineOpcode.REPEATED_DELTA_TIME_BYTE.getOpcodeIndex()) {
                count += byteDataStream.read();
                byteDataStream.read();
            } else if (opcode == TimelineOpcode.REPEATED_DELTA_TIME_SHORT.getOpcodeIndex()) {
                count += byteDataStream.readUnsignedShort();
                byteDataStream.read();
            } else {
                throw new IllegalStateException(String
                        .format("In TimelineCoder.countTimeBytesSamples(), unrecognized opcode %d", opcode));
            }
        }
        return count;
    } catch (IOException e) {
        log.error(e, "IOException while counting timeline samples");
        return count;
    }
}

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From source file:org.carbondata.processing.globalsurrogategenerator.LevelGlobalSurrogateGeneratorThread.java

private int getMaxKeyAssigned(CarbonFile memberFile) {
    DataInputStream inputStream = null;
    try {//from ww  w .  j ava  2s.  c  o m
        inputStream = FileFactory.getDataInputStream(memberFile.getPath(),
                FileFactory.getFileType(memberFile.getPath()));
        return inputStream.readInt();

    } catch (FileNotFoundException e) {
        LOGGER.error(e, e.getMessage());
    } catch (IOException e) {
        LOGGER.error(e, e.getMessage());
    } finally {
        CarbonUtil.closeStreams(inputStream);
    }
    return -1;

}

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From source file:eu.delving.sip.files.ReportFile.java

public ReportFile(File reportFile, File reportIndexFile, File invalidFile, File linkFile, DataSet dataSet,
        String prefix) throws IOException {
    this.reportFile = reportFile;
    this.reportAccess = new RandomAccessFile(this.reportFile, "r");
    this.reportIndexAccess = new RandomAccessFile(reportIndexFile, "r");
    this.linkFile = new LinkFile(linkFile, dataSet, prefix);
    this.dataSet = dataSet;
    this.prefix = prefix;
    int recordCount = (int) (reportIndexAccess.length() / LONG_SIZE);
    recs = new ArrayList<Rec>(recordCount);
    for (int walk = 0; walk < recordCount; walk++)
        recs.add(new Rec(walk));
    DataInputStream invalidIn = new DataInputStream(new FileInputStream(invalidFile));
    int invalidCount = invalidIn.readInt();
    invalidRecs = new ArrayList<Rec>(invalidCount);
    for (int walk = 0; walk < invalidCount; walk++) {
        int recordNumber = invalidIn.readInt();
        invalidRecs.add(recs.get(recordNumber));
    }/*  w  w w.j a va2s .  com*/
    invalidIn.close();
}

---

From source file:org.apache.pdfbox.tools.imageio.TestImageIOUtils.java

/**
 * checks whether the resolution of a BMP image file is as expected.
 *
 * @param filename the name of the BMP file
 * @param expectedResolution the expected resolution
 *
 * @throws IOException if something goes wrong
 *//*from   w w  w  .  j a v  a 2 s  .  c  o m*/
private void checkBmpResolution(String filename, int expectedResolution)
        throws FileNotFoundException, IOException {
    // BMP format explained here:
    // http://www.javaworld.com/article/2077561/learn-java/java-tip-60--saving-bitmap-files-in-java.html
    // we skip 38 bytes and then read two 4 byte-integers and reverse the bytes
    DataInputStream dis = new DataInputStream(new FileInputStream(new File(filename)));
    int skipped = dis.skipBytes(38);
    assertEquals("Can't skip 38 bytes in image file " + filename, 38, skipped);
    int pixelsPerMeter = Integer.reverseBytes(dis.readInt());
    int actualResolution = (int) Math.round(pixelsPerMeter / 100.0 * 2.54);
    assertEquals("X resolution doesn't match in image file " + filename, expectedResolution, actualResolution);
    pixelsPerMeter = Integer.reverseBytes(dis.readInt());
    actualResolution = (int) Math.round(pixelsPerMeter / 100.0 * 2.54);
    assertEquals("Y resolution doesn't match in image file " + filename, expectedResolution, actualResolution);
    dis.close();
}

---

From source file:org.bdval.cache.TableCache.java

public ObjectSet<CharSequence> getTableColumnIds(final int splitId, final String splitType,
        final String datasetName) {
    final File cachedTableFile = getCachedTableFile(splitId, splitType, datasetName);
    final ObjectSet<CharSequence> result = new ObjectOpenHashSet<CharSequence>();
    DataInputStream dataInput = null;
    try {/*from   w  w w.j a v a 2s. c  o  m*/
        dataInput = new DataInputStream(new FastBufferedInputStream(new FileInputStream(cachedTableFile)));
        final int numberOfColumns = dataInput.readInt();
        LOG.info("Reading cached table with " + numberOfColumns + " columns");
        for (int i = 0; i < numberOfColumns; i++) {
            final String colType = dataInput.readUTF();
            final String colId = dataInput.readUTF();

            result.add(colId);

            if ("s".equals(colType)) {
                final int numStrings = dataInput.readInt();

                for (int j = 0; j < numStrings; j++) {
                    dataInput.readUTF();
                }
            } else if ("d".equals(colType)) {
                final int numDoubles = dataInput.readInt();
                // we don't need to read these doubles, just skip them;
                final int numBytes = Double.SIZE * numDoubles / 8;
                final int actualBytes = dataInput.skipBytes(numBytes);
                if (actualBytes != numBytes) {
                    LOG.warn("actual bytes skipped (" + actualBytes + ") does " + "not equal expected of "
                            + numBytes);
                }
            } else {
                LOG.error("UNKNOWN COLUMN TYPE " + colType + " cannot read cached table from file "
                        + filenameOf(cachedTableFile));
                return null;
            }
        }
        return result;
    } catch (IOException e) {
        LOG.error("Error getting column ids", e);
        return null;
    } finally {
        IOUtils.closeQuietly(dataInput);
    }
}

---

From source file:org.sakaiproject.util.serialize.Type1BaseResourcePropertiesSerializer.java

/**
 * @see org.sakaiproject.entity.api.serialize.DataStreamEntitySerializer#parse(org.sakaiproject.entity.api.serialize.SerializableEntity,
 *      java.io.DataInputStream)//ww  w  .j a va2 s  .  c  o m
 */
public void parse(SerializableEntity se, DataInputStream ds) throws EntityParseException {

    if (!(se instanceof SerializablePropertiesAccess)) {
        throw new EntityParseException("Cant serialize " + se + " as it is not a SerializableProperties ");
    }
    SerializablePropertiesAccess sp = (SerializablePropertiesAccess) se;
    Map<String, Object> properties = new HashMap<String, Object>();

    try {
        int type = ds.readInt();
        if (type == TYPE1) {
            int block = ds.readInt();
            if (block == BLOCK1) {
                int nprops = ds.readInt();
                for (int i = 0; i < nprops; i++) {
                    block = ds.readInt();
                    switch (block) {
                    case BLOCK2: {
                        String key = ds.readUTF();
                        String value = ds.readUTF();
                        properties.put(key, value);
                    }
                        break;
                    case BLOCK3: {
                        String key = ds.readUTF();
                        int n = ds.readInt();
                        List<String> l = new Vector<String>();
                        for (int j = 0; j < n; j++) {
                            l.add(ds.readUTF());
                        }
                        properties.put(key, l);

                    }
                        break;
                    default:
                        throw new EntityParseException("Unrecognised block number " + block);
                    }
                }
                sp.setSerializableProperties(properties);
            } else {
                throw new EntityParseException("Failed to parse entity, unrecognised block " + block);
            }
        } else {
            throw new EntityParseException("Cant Parse block, resource properties is not type 1 " + type);
        }
    } catch (EntityParseException ep) {
        throw ep;
    } catch (Exception ex) {
        throw new EntityParseException("Failed to parse entity ", ex);
    }
}

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From source file:org.codehaus.groovy.grails.web.pages.GroovyPageMetaInfo.java

/**
 * reads the linenumber mapping information from a separate file that has been generated at precompile time
 *
 * @throws IOException/*from w w  w  .j a  v  a2  s  . c o  m*/
 */
private void readLineNumbers() throws IOException {
    String dataResourceName = resolveDataResourceName(LINENUMBERS_DATA_POSTFIX);

    DataInputStream input = null;
    try {
        input = new DataInputStream(pageClass.getResourceAsStream(dataResourceName));
        int arrayLen = input.readInt();
        lineNumbers = new int[arrayLen];
        for (int i = 0; i < arrayLen; i++) {
            lineNumbers[i] = input.readInt();
        }
    } finally {
        IOUtils.closeQuietly(input);
    }
}

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From source file:org.apache.fop.fonts.type1.PFBParser.java

private void parsePCFormat(PFBData pfb, DataInputStream din) throws IOException {
    int segmentHead;
    int segmentType;
    int bytesRead;

    //Read first segment
    segmentHead = din.readUnsignedByte();
    if (segmentHead != 128) {
        throw new IOException("Invalid file format. Expected ASCII 80hex");
    }/*w  w w  . ja  v a 2 s. c  o  m*/
    segmentType = din.readUnsignedByte(); //Read
    int len1 = swapInteger(din.readInt());
    byte[] headerSegment = new byte[len1];
    din.readFully(headerSegment);
    pfb.setHeaderSegment(headerSegment);

    //Read second segment
    segmentHead = din.readUnsignedByte();
    if (segmentHead != 128) {
        throw new IOException("Invalid file format. Expected ASCII 80hex");
    }
    segmentType = din.readUnsignedByte();
    int len2 = swapInteger(din.readInt());
    byte[] encryptedSegment = new byte[len2];
    din.readFully(encryptedSegment);
    pfb.setEncryptedSegment(encryptedSegment);

    //Read third segment
    segmentHead = din.readUnsignedByte();
    if (segmentHead != 128) {
        throw new IOException("Invalid file format. Expected ASCII 80hex");
    }
    segmentType = din.readUnsignedByte();
    int len3 = swapInteger(din.readInt());
    byte[] trailerSegment = new byte[len3];
    din.readFully(trailerSegment);
    pfb.setTrailerSegment(trailerSegment);

    //Read EOF indicator
    segmentHead = din.readUnsignedByte();
    if (segmentHead != 128) {
        throw new IOException("Invalid file format. Expected ASCII 80hex");
    }
    segmentType = din.readUnsignedByte();
    if (segmentType != 3) {
        throw new IOException("Expected segment type 3, but found: " + segmentType);
    }
}

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From source file:org.calrissian.accumulorecipes.commons.support.qfd.KeyToAttributeStoreWholeColFXform.java

@Override
public V apply(Map.Entry<Key, Value> keyValueEntry) {
    try {//from   ww  w  .  ja  v  a 2  s  .  c o m

        B entry = null;

        List<Map.Entry<Key, Value>> groupedKVs = decodeRow(keyValueEntry.getKey(), keyValueEntry.getValue());

        for (Map.Entry<Key, Value> groupedEvent : groupedKVs) {

            String[] colQParts = splitPreserveAllTokens(groupedEvent.getKey().getColumnQualifier().toString(),
                    NULL_BYTE);
            String[] aliasValue = splitPreserveAllTokens(colQParts[1], ONE_BYTE);
            String visibility = groupedEvent.getKey().getColumnVisibility().toString();

            try {
                ByteArrayInputStream bais = new ByteArrayInputStream(groupedEvent.getValue().get());
                DataInputStream dis = new DataInputStream(bais);
                dis.readLong(); // minimum expiration of keys and values
                long timestamp = dis.readLong();

                if (entry == null)
                    entry = buildEntryFromKey(
                            new Key(keyValueEntry.getKey().getRow(), keyValueEntry.getKey().getColumnFamily(),
                                    keyValueEntry.getKey().getColumnQualifier(), timestamp));

                int length = dis.readInt();
                byte[] metaBytes = new byte[length];
                dis.readFully(metaBytes);

                Map<String, String> meta = metadataSerDe.deserialize(metaBytes);
                Map<String, String> metadata = (length == 0 ? new HashMap<String, String>()
                        : new HashMap<String, String>(meta));
                setVisibility(metadata, visibility);
                Attribute attribute = new Attribute(colQParts[0],
                        typeRegistry.decode(aliasValue[0], aliasValue[1]), metadata);
                entry.attr(attribute);
            } catch (Exception e) {
                log.error("There was an error deserializing the metadata for a attribute", e);
            }
        }

        return entry.build();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

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From source file:org.squidy.nodes.Tracking.java

/**
 * /*from   ww  w . ja  v  a  2s.c  o m*/
 */
private void startMulticastServer() throws ProcessException {
    InetAddress multicastGroup;
    try {
        multicastGroup = InetAddress.getByName(multicastGroupAddress);
    } catch (UnknownHostException e) {
        throw new ProcessException(e.getMessage(), e);
    }

    server = new MulticastServer(multicastGroup, port);

    server.addMulticastListener(new MulticastAdapter() {

        /* (non-Javadoc)
         * @see org.squidy.manager.protocol.udp.UDPListener#parseData(byte[])
         */
        public void parseData(byte[] data) {
            // TODO [SF]: Do your parsing stuff here!!!
            ByteArrayInputStream bais = new ByteArrayInputStream(data);
            DataInputStream instream = new DataInputStream(bais);

            try {
                System.out.println("short: " + instream.readUnsignedShort() + " | "
                        + instream.readUnsignedShort() + " | " + (instream.readInt() & 0x7F));
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            //               
            //            String s = new String(data);
            //            System.out.println(s);

            /*   
             *              Data is coded with a started MessageID = 7
                         lastFrameCounter = <FrameId>;         
                                 
                          if (<singleMarker == true>){
                                  
                             trackedBodies = <numTrackedSingleMarker>;
                             bodyId = 0;
                                  
                             //Read x,y,z and convert to mm
                             x = <x>*100; 
                             y = <y>*100;
                             z = <z>*100;
                                  
                             publish(new DataPosition3D(Tracking.class, bodyID, x, y, z, width,
                              height, depth, lastFrameCounter, trackedBodies));
                                      
                           // only publish single marker positions, not the ones belonging to a rigit body   
                          }
                          if (<rigitBody == true>){
                                  
                             trackedBodies = <numTrackedRigitBodies>;
                               bodyId = <rigitBodyId>;             
                             //Read x,y,z and convert to mm
                             x = <x>*100; 
                             y = <y>*100;
                             z = <z>*100;
                                     
                             //Read quatrions
                             qx = <qx>;
                             qy = <qy>;
                             qz = <qz>;
                             qw = <qw>;
                                     
                             //Transform to rotation matrix
                             //Spalte 1:
                           rxx = 2*(qx*qx + qw*qw)-1;
                           ryx = 2*(qx*qy + qz*qw);
                           rzx = 2*(qx*qz - qy*qw);
                           Spalte 2:
                           rxy = 2*(qx*qy - qz*qw);
                           ryy = 2*(qy*qy + qq*qw)-1;
                           rzy = 2*(qy*qz + qx*qw);
                           Spalte 3:
                           rxz = 2*(qx*qz + qy*qw);
                           ryz = 2*(qy*qz - qx*qw);
                           rzz = 2*(qz*qz + qw*qw)-1;
                                
                           //quadToMatrix: ?
                           //m[0] = 1-2*q[1]*q[1]-2*q[2]*q[2]; m[1] = 2*q[0]*q[1]-2*q[3]*q[2];   m[2] = 2*q[0]*q[2]+2*q[3]*q[1];
                             //m[3] = 2*q[0]*q[1]+2*q[3]*q[2];   m[4] = 1-2*q[0]*q[0]-2*q[2]*q[2]; m[5] = 2*q[1]*q[2]-2*q[3]*q[0];
                             //m[6] = 2*q[0]*q[2]-2*q[3]*q[1];   m[7] = 2*q[1]*q[2]+2*q[3]*q[0];   m[8] = 1-2*q[0]*q[0]-2*q[1]*q[1];
                                  
                             publish(new DataPosition6D(arTracking.getClass(), bodyID, x, y, z, width,
                           height, depth, rxx, ryx, rzx, rxy, ryy, rzy, rxz, ryz, rzz, lastFrameCounter,
                           trackedBodies));
                    
                                
                        }
                                
                                
            */

            //         
            //             ...
        }
    });
}

---

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