Example usage for java.io DataInput readInt

Introduction

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

Prototype

int readInt() throws IOException;

Source Link

Document

Reads four input bytes and returns an int value.

Usage

From source file:com.fiorano.openesb.application.aps.ApplicationContext.java

/**
 *  This method reads this <code>ApplicationContexts</code> object from the
 *  specified input stream object.//from   w  w  w  .  j  a v  a 2  s . c  o  m
 *
 * @param is DataInput object
 * @param versionNo
 * @exception IOException if an error occurs while reading bytes or while
 *      converting them into specified Java primitive type.
        
 * @since Tifosi2.0
 */
public void fromStream(DataInput is, int versionNo) throws IOException {
    super.fromStream(is, versionNo);

    String temp = UTFReaderWriter.readUTF(is);

    if (temp.equals(""))
        m_structure = null;
    else
        m_structure = temp;

    temp = UTFReaderWriter.readUTF(is);
    if (temp.equals(""))
        m_defaultInstance = null;
    else
        m_defaultInstance = temp;

    temp = UTFReaderWriter.readUTF(is);
    if (temp.equals(""))
        m_rootElement = null;
    else
        m_rootElement = temp;

    temp = UTFReaderWriter.readUTF(is);
    if (temp.equals(""))
        m_rootElementNamespace = null;
    else
        m_rootElementNamespace = temp;

    m_structureType = is.readInt();

}

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From source file:org.apache.pig.data.BinInterSedes.java

private InternalMap readInternalMap(DataInput in) throws IOException {
    int size = in.readInt();
    InternalMap m = new InternalMap(size);
    for (int i = 0; i < size; i++) {
        Object key = readDatum(in);
        m.put(key, readDatum(in));//from   w w w  . j av  a2  s.  c  o  m
    }
    return m;
}

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From source file:org.apache.hama.graph.GraphJobMessage.java

@Override
public void readFields(DataInput in) throws IOException {
    flag = in.readByte();//ww w.j  a  va  2s .  co  m
    if (isVertexMessage()) {
        vertexId = ReflectionUtils.newInstance(VERTEX_ID_CLASS, null);
        vertexId.readFields(in);
        vertexValue = ReflectionUtils.newInstance(VERTEX_VALUE_CLASS, null);
        vertexValue.readFields(in);
    } else if (isMapMessage()) {
        map = new MapWritable();
        map.readFields(in);
    } else if (isPartitioningMessage()) {
        //LOG.info("??? vertex");
        Vertex<Writable, Writable, Writable> vertex = GraphJobRunner.newVertexInstance(VERTEX_CLASS, null);
        Writable vertexId = ReflectionUtils.newInstance(VERTEX_ID_CLASS, null);
        vertexId.readFields(in);
        //LOG.info("  " + vertexId.toString());
        vertex.setVertexID(vertexId);
        if (in.readBoolean()) {
            Writable vertexValue = ReflectionUtils.newInstance(VERTEX_VALUE_CLASS, null);
            vertexValue.readFields(in);
            //LOG.info("" + vertexValue);
            vertex.setValue(vertexValue);
        }
        int size = in.readInt();
        //LOG.info("?: " + size);
        vertex.setEdges(new ArrayList<Edge<Writable, Writable>>(size));
        for (int i = 0; i < size; i++) {
            Writable edgeVertexID = ReflectionUtils.newInstance(VERTEX_ID_CLASS, null);
            edgeVertexID.readFields(in);
            //LOG.info("  " + edgeVertexID);
            Writable edgeValue = null;
            if (in.readBoolean()) {
                edgeValue = ReflectionUtils.newInstance(EDGE_VALUE_CLASS, null);
                edgeValue.readFields(in);
            }
            //LOG.info(": " + edgeValue);
            vertex.getEdges().add(new Edge<Writable, Writable>(edgeVertexID, edgeValue));
        }
        this.vertex = vertex;
        //LOG.info("Vertex" + vertex);
    } else if (isVerticesSizeMessage()) {
        vertices_size = new IntWritable();
        vertices_size.readFields(in);
    } else if (isBoundaryVertexSizeMessage()) {
        boundaryVertex_size = new IntWritable();
        boundaryVertex_size.readFields(in);
    } else {
        vertexId = ReflectionUtils.newInstance(VERTEX_ID_CLASS, null);
        vertexId.readFields(in);
    }
}

---

From source file:org.apache.hadoop.hbase.HTableDescriptor.java

/**
 * <em> INTERNAL </em> This method is a part of {@link WritableComparable} interface
 * and is used for de-serialization of the HTableDescriptor over RPC
 * @deprecated Writables are going away.  Use pb {@link #parseFrom(byte[])} instead.
 *//*from   ww w .  j  a v  a  2  s.c  o m*/
@Deprecated
@Override
public void readFields(DataInput in) throws IOException {
    int version = in.readInt();
    if (version < 3)
        throw new IOException("versions < 3 are not supported (and never existed!?)");
    // version 3+
    name = TableName.valueOf(Bytes.readByteArray(in));
    setRootRegion(in.readBoolean());
    setMetaRegion(in.readBoolean());
    values.clear();
    configuration.clear();
    int numVals = in.readInt();
    for (int i = 0; i < numVals; i++) {
        ImmutableBytesWritable key = new ImmutableBytesWritable();
        ImmutableBytesWritable value = new ImmutableBytesWritable();
        key.readFields(in);
        value.readFields(in);
        setValue(key, value);
    }
    families.clear();
    int numFamilies = in.readInt();
    for (int i = 0; i < numFamilies; i++) {
        HColumnDescriptor c = new HColumnDescriptor();
        c.readFields(in);
        families.put(c.getName(), c);
    }
    if (version >= 7) {
        int numConfigs = in.readInt();
        for (int i = 0; i < numConfigs; i++) {
            ImmutableBytesWritable key = new ImmutableBytesWritable();
            ImmutableBytesWritable value = new ImmutableBytesWritable();
            key.readFields(in);
            value.readFields(in);
            configuration.put(Bytes.toString(key.get(), key.getOffset(), key.getLength()),
                    Bytes.toString(value.get(), value.getOffset(), value.getLength()));
        }
    }
}

---

From source file:org.apache.hadoop.mapred.Task.java

public void readFields(DataInput in) throws IOException {
    jobFile = Text.readString(in);
    taskId = TaskAttemptID.read(in);/* w  w  w .j av  a  2s. c  om*/
    partition = in.readInt();
    numSlotsRequired = in.readInt();
    taskStatus.readFields(in);
    skipRanges.readFields(in);
    currentRecIndexIterator = skipRanges.skipRangeIterator();
    currentRecStartIndex = currentRecIndexIterator.next();
    skipping = in.readBoolean();
    jobCleanup = in.readBoolean();
    if (jobCleanup) {
        jobRunStateForCleanup = WritableUtils.readEnum(in, JobStatus.State.class);
    }
    jobSetup = in.readBoolean();
    writeSkipRecs = in.readBoolean();
    taskCleanup = in.readBoolean();
    if (taskCleanup) {
        setPhase(TaskStatus.Phase.CLEANUP);
    }
    user = Text.readString(in);
}

---

From source file:com.fiorano.openesb.application.aps.Route.java

private void _readSelector(DataInput is, int versionNo) throws IOException {
    int size = is.readInt();
    for (int i = 0; i < size; i++) {
        String type = UTFReaderWriter.readUTF(is);

        if (!(type.equalsIgnoreCase(MESSAGE_BODY_XPATH) || type.equalsIgnoreCase(APP_CONTEXT_XPATH))) {
            if (type.equals(""))
                type = null;//  w ww.j a v  a2s.co m

            String value = UTFReaderWriter.readUTF(is);
            if (value.equals(""))
                value = null;
            addSelector(type, value);
        } else {
            XPathDmi dmi = new XPathDmi();
            dmi.fromStream(is, versionNo);
            if (m_selectors == null)
                m_selectors = new HashMap();

            m_selectors.put(type, dmi);
        }
    }
}

---

From source file:org.apache.sysml.runtime.matrix.data.FrameBlock.java

@Override
public void readFields(DataInput in) throws IOException {
    //read head (rows, cols)
    _numRows = in.readInt();
    int numCols = in.readInt();
    boolean isDefaultMeta = in.readBoolean();
    //allocate schema/meta data arrays
    _schema = (_schema != null && _schema.length == numCols) ? _schema : new ValueType[numCols];
    _colnames = (_colnames != null && _colnames.length == numCols) ? _colnames : new String[numCols];
    _colmeta = (_colmeta != null && _colmeta.length == numCols) ? _colmeta : new ColumnMetadata[numCols];
    _coldata = (_coldata != null && _coldata.length == numCols) ? _coldata : new Array[numCols];
    //read columns (value type, meta, data)
    for (int j = 0; j < numCols; j++) {
        ValueType vt = ValueType.values()[in.readByte()];
        String name = isDefaultMeta ? createColName(j) : in.readUTF();
        long ndistinct = isDefaultMeta ? 0 : in.readLong();
        String mvvalue = isDefaultMeta ? null : in.readUTF();
        Array arr = null;/*  w  w w. j av  a 2  s . c o  m*/
        switch (vt) {
        case STRING:
            arr = new StringArray(new String[_numRows]);
            break;
        case BOOLEAN:
            arr = new BooleanArray(new boolean[_numRows]);
            break;
        case INT:
            arr = new LongArray(new long[_numRows]);
            break;
        case DOUBLE:
            arr = new DoubleArray(new double[_numRows]);
            break;
        default:
            throw new IOException("Unsupported value type: " + vt);
        }
        arr.readFields(in);
        _schema[j] = vt;
        _colnames[j] = name;
        _colmeta[j] = new ColumnMetadata(ndistinct, (mvvalue == null || mvvalue.isEmpty()) ? null : mvvalue);
        _coldata[j] = arr;
    }
}

---

From source file:de.hpi.fgis.hdrs.Triple.java

@Override
public void readFields(DataInput in) throws IOException {
    // read header
    Slen = in.readShort();//  www  .j a v a 2  s  .  co m
    Plen = in.readShort();
    Olen = in.readInt();
    multiplicity = in.readInt();
    // read data
    //int size = Slen + (int) Plen + Olen;
    int size = bufferSize();
    buffer = new byte[size];
    in.readFully(buffer, 0, size);
}

---

From source file:org.apache.isis.objectstore.nosql.db.file.server.FileServer.java

private void syncConnection(final Socket connection, final int readTimeout) {
    try {/*w  w w  .  j  a v a2 s. c o  m*/
        final CRC32 crc32 = new CRC32();
        final DataOutput output = new DataOutputStream(connection.getOutputStream());
        final DataInput input = new DataInputStream(new CheckedInputStream(connection.getInputStream(), crc32));

        if (input.readByte() != INIT) {
            return;
        }

        final LogRange logFileRange = Util.logFileRange();
        final long lastId = logFileRange.noLogFile() ? -1 : logFileRange.getLast();
        output.writeLong(lastId);
        do {
            if (input.readByte() != RECOVERY_LOG) {
                return;
            }
            crc32.reset();
            final long logId = input.readLong();
            final File file = Util.tmpLogFile(logId);
            LOG.info("syncing recovery file: " + file.getName());
            final BufferedOutputStream fileOutput = new BufferedOutputStream(new FileOutputStream(file));

            final byte[] buffer = new byte[8092];
            int length;
            while ((length = input.readInt()) > 0) {
                input.readFully(buffer, 0, length);
                fileOutput.write(buffer, 0, length);
            }
            fileOutput.close();

            final long calculatedChecksum = crc32.getValue();
            final long sentChecksum = input.readLong();
            if (calculatedChecksum != sentChecksum) {
                throw new NoSqlStoreException("Checksum didn't match during download of " + file.getName());
            }

            recover(file);
            final File renameTo = Util.logFile(logId);
            file.renameTo(renameTo);
        } while (true);
    } catch (final NoSqlStoreException e) {
        LOG.error("file server failure", e);
    } catch (final IOException e) {
        LOG.error("networking failure", e);
    } catch (final RuntimeException e) {
        LOG.error("request failure", e);
    } finally {
        try {
            connection.close();
        } catch (final IOException e) {
            LOG.warn("failure to close connection", e);
        }
    }

    // TODO restart
}

---

From source file:org.springframework.session.data.gemfire.AbstractGemFireOperationsSessionRepositoryTest.java

@Test
public void sessionAttributesFromData() throws Exception {
    final DataInput mockDataInput = mock(DataInput.class);

    given(mockDataInput.readInt()).willReturn(2);
    given(mockDataInput.readUTF()).willReturn("attrOne").willReturn("attrTwo");

    @SuppressWarnings("serial")
    AbstractGemFireOperationsSessionRepository.GemFireSessionAttributes sessionAttributes = new AbstractGemFireOperationsSessionRepository.GemFireSessionAttributes() {
        private int count = 0;

        @Override/*w w w  .j  av  a2s. c o  m*/
        @SuppressWarnings("unchecked")
        <T> T readObject(DataInput in) throws ClassNotFoundException, IOException {
            assertThat(in).isSameAs(mockDataInput);
            return (T) Arrays.asList("testOne", "testTwo").get(count++);
        }
    };

    assertThat(sessionAttributes.getAttributeNames().isEmpty()).isTrue();

    sessionAttributes.fromData(mockDataInput);

    assertThat(sessionAttributes.getAttributeNames().size()).isEqualTo(2);
    assertThat(sessionAttributes.getAttributeNames().containsAll(asSet("attrOne", "attrTwo"))).isTrue();
    assertThat(String.valueOf(sessionAttributes.getAttribute("attrOne"))).isEqualTo("testOne");
    assertThat(String.valueOf(sessionAttributes.getAttribute("attrTwo"))).isEqualTo("testTwo");

    verify(mockDataInput, times(1)).readInt();
    verify(mockDataInput, times(2)).readUTF();
}

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