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.ricemap.spateDB.core.RTree.java

@Override
public void readFields(DataInput in) throws IOException {
    // Tree size (Header + structure + data)
    treeSize = in.readInt();
    if (treeSize == 0) {
        height = elementCount = 0;//from w  w w  . jav a  2 s.  c  om
        return;
    }

    // Read only the tree structure in memory while actual records remain on
    // disk and loaded when necessary
    height = in.readInt();
    if (height == 0)
        return;
    degree = in.readInt();
    elementCount = in.readInt();
    columnar = in.readInt() == 1;

    // Keep only tree structure in memory
    nodeCount = (int) ((powInt(degree, height) - 1) / (degree - 1));
    int structureSize = nodeCount * NodeSize;
    byte[] treeStructure = new byte[structureSize];
    in.readFully(treeStructure, 0, structureSize);
    structure = new FSDataInputStream(new MemoryInputStream(treeStructure));
    if (in instanceof FSDataInputStream) {
        this.treeStartOffset = ((FSDataInputStream) in).getPos() - structureSize - TreeHeaderSize;
        this.data = (FSDataInputStream) in;
    } else {
        // Load all tree data in memory
        this.treeStartOffset = 0 - structureSize - TreeHeaderSize;
        int treeDataSize = treeSize - TreeHeaderSize - structureSize;
        byte[] treeData = new byte[treeDataSize];
        in.readFully(treeData, 0, treeDataSize);
        this.data = new FSDataInputStream(new MemoryInputStream(treeData));
    }
    nodeCount = (int) ((Math.pow(degree, height) - 1) / (degree - 1));
    leafNodeCount = (int) Math.pow(degree, height - 1);
    nonLeafNodeCount = nodeCount - leafNodeCount;
}

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From source file:com.mobicage.rogerthat.plugins.messaging.BrandingMgr.java

@SuppressWarnings("unchecked")
private void readLegacyStashedLockRequests(DataInput in) throws IOException, PickleException {
    int size = in.readInt();
    for (int i = 0; i < size; i++) {
        String key = in.readUTF();
        BrandedItem item = getMessageFromQueue(key);
        item.calls.add(createRpcCall("com.mobicage.capi.messaging.messageLocked",
                (Map<String, Object>) JSONValue.parse(in.readUTF())));
    }//from   w  w w .jav a2  s . co m
}

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From source file:com.mobicage.rogerthat.plugins.messaging.BrandingMgr.java

@SuppressWarnings("unchecked")
private void readLegacyStashedMemberStatusUpdates(DataInput in) throws IOException, PickleException {
    int size = in.readInt();
    for (int i = 0; i < size; i++) {
        String key = in.readUTF();
        BrandedItem item = getMessageFromQueue(key);
        int updatesCount = in.readInt();
        for (int j = 0; j < updatesCount; j++) {
            item.calls.add(createRpcCall("com.mobicage.capi.messaging.updateMessageMemberStatus",
                    (Map<String, Object>) JSONValue.parse(in.readUTF())));
        }/*w  ww .j  a v a 2 s  . c  om*/
    }
}

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From source file:com.mobicage.rogerthat.plugins.messaging.BrandingMgr.java

@SuppressWarnings("unchecked")
private void deserializeStashedLegacyManager(int version, DataInput in) throws IOException, PickleException {
    int msgQueueSize = in.readInt();
    for (int i = 0; i < msgQueueSize; i++) {
        try {/*w  w w  .  j  a  v a  2  s  .  c o m*/
            Message message = new Message((Map<String, Object>) JSONValue.parse(in.readUTF()));
            mQueue.add(new BrandedItem(message));
        } catch (IncompleteMessageException e) {
            L.bug(e);
        }
    }

    if (version == 3) {
        readLegacyStashedMemberStatusUpdates(in);
    }

    if (version >= 2) {
        int friendQueueSize = in.readInt();
        for (int i = 0; i < friendQueueSize; i++) {
            try {
                FriendTO friend = new FriendTO((Map<String, Object>) JSONValue.parse(in.readUTF()));
                mQueue.add(new BrandedItem(BrandedItem.TYPE_FRIEND, friend, friend.descriptionBranding));
            } catch (IncompleteMessageException e) {
                L.bug(e);
            }
        }
    }
}

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From source file:com.ebay.erl.mobius.core.model.Tuple.java

/**
 * Deserialize the tuple from the input/*from  w  ww .  j  ava 2  s. com*/
 * <code>in</code>.
 */
@Override
public void readFields(DataInput in) throws IOException {
    if (this.values == null) {
        this.values = new ArrayList<Object>();
    } else
        this.values.clear();

    int columns_nbrs = in.readInt();

    ReadFieldImpl read_impl = new ReadFieldImpl(this.values, in, this.conf);

    for (int i = 0; i < columns_nbrs; i++) {
        byte type = in.readByte();
        read_impl.handle(type);
    }
}

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

public int getTupleSize(DataInput in, byte type) throws IOException {
    int sz;/*from   ww  w . j  a v a2  s.c  o m*/
    switch (type) {
    case TUPLE_0:
        return 0;
    case TUPLE_1:
        return 1;
    case TUPLE_2:
        return 2;
    case TUPLE_3:
        return 3;
    case TUPLE_4:
        return 4;
    case TUPLE_5:
        return 5;
    case TUPLE_6:
        return 6;
    case TUPLE_7:
        return 7;
    case TUPLE_8:
        return 8;
    case TUPLE_9:
        return 9;
    case TINYTUPLE:
        sz = in.readUnsignedByte();
        break;
    case SMALLTUPLE:
        sz = in.readUnsignedShort();
        break;
    case TUPLE:
        sz = in.readInt();
        break;
    default: {
        int errCode = 2112;
        String msg = "Unexpected datatype " + type + " while reading tuple" + "from binary file.";
        throw new ExecException(msg, errCode, PigException.BUG);
    }
    }
    // if sz == 0, we construct an "empty" tuple - presumably the writer wrote an empty tuple!
    if (sz < 0) {
        throw new IOException("Invalid size " + sz + " for a tuple");
    }
    return sz;
}

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From source file:org.apache.sysml.runtime.compress.CompressedMatrixBlock.java

@Override
public void readFields(DataInput in) throws IOException {
    boolean compressed = in.readBoolean();

    //deserialize uncompressed block
    if (!compressed) {
        super.readFields(in);
        return;//from   w  w  w.j  ava 2  s . c  om
    }

    //deserialize compressed block
    rlen = in.readInt();
    clen = in.readInt();
    nonZeros = in.readLong();
    int ncolGroups = in.readInt();

    _colGroups = new ArrayList<ColGroup>(ncolGroups);
    for (int i = 0; i < ncolGroups; i++) {
        CompressionType ctype = CompressionType.values()[in.readByte()];
        ColGroup grp = null;

        //create instance of column group
        switch (ctype) {
        case UNCOMPRESSED:
            grp = new ColGroupUncompressed();
            break;
        case OLE_BITMAP:
            grp = new ColGroupOLE();
            break;
        case RLE_BITMAP:
            grp = new ColGroupRLE();
            break;
        }

        //deserialize and add column group
        grp.readFields(in);
        _colGroups.add(grp);
    }
}

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From source file:com.mobicage.rogerthat.plugins.messaging.BrandingMgr.java

@Override
public void readFromPickle(int version, DataInput in) throws IOException, PickleException {
    T.dontCare();/*from w  ww.  j  av a  2 s .  co m*/
    if (version < 4) {
        deserializeStashedLegacyManager(version, in);
    } else {
        // Read branding queue
        int queueSize = in.readInt();
        for (int i = 0; i < queueSize; i++) {
            @SuppressWarnings("unchecked")
            Map<String, Object> jsonMap = (Map<String, Object>) JSONValue.parse(in.readUTF());
            try {
                mQueue.add(new BrandedItem(jsonMap));
            } catch (IncompleteMessageException e) {
                L.bug(e);
            }
        }

        if (version < 6) {
            readLegacyStashedMemberStatusUpdates(in);
            if (version >= 5) {
                readLegacyStashedLockRequests(in);
            }
        }

        if (version >= 7) {
            int downloadQueueSize = in.readInt();
            for (int i = 0; i < downloadQueueSize; i++) {
                @SuppressWarnings("unchecked")
                Map<String, Object> jsonMap = (Map<String, Object>) JSONValue.parse(in.readUTF());
                try {
                    final BrandedItem item = new BrandedItem(jsonMap);
                    mDownloadMgrQueue.put(item.downloadId, item);
                } catch (IncompleteMessageException e) {
                    L.bug(e);
                }
            }
        }
    }
}

---

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

/**
 * @deprecated Use protobuf deserialization instead.
 * @see #parseFrom(byte[])/*from  w  w w . j av a  2s .  c  om*/
 */
@Deprecated
public void readFields(DataInput in) throws IOException {
    // Read the single version byte.  We don't ask the super class do it
    // because freaks out if its not the current classes' version.  This method
    // can deserialize version 0 and version 1 of HRI.
    byte version = in.readByte();
    if (version == 0) {
        // This is the old HRI that carried an HTD.  Migrate it.  The below
        // was copied from the old 0.90 HRI readFields.
        this.endKey = Bytes.readByteArray(in);
        this.offLine = in.readBoolean();
        this.regionId = in.readLong();
        this.regionName = Bytes.readByteArray(in);
        this.split = in.readBoolean();
        this.startKey = Bytes.readByteArray(in);
        try {
            HTableDescriptor htd = new HTableDescriptor();
            htd.readFields(in);
            this.tableName = htd.getTableName();
        } catch (EOFException eofe) {
            throw new IOException("HTD not found in input buffer", eofe);
        }
        this.hashCode = in.readInt();
    } else if (getVersion() == version) {
        this.endKey = Bytes.readByteArray(in);
        this.offLine = in.readBoolean();
        this.regionId = in.readLong();
        this.regionName = Bytes.readByteArray(in);
        this.split = in.readBoolean();
        this.startKey = Bytes.readByteArray(in);
        this.tableName = TableName.valueOf(Bytes.readByteArray(in));
        this.hashCode = in.readInt();
    } else {
        throw new IOException("Non-migratable/unknown version=" + getVersion());
    }
}

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

/**
 *  This method reads this <code>ApplicationHeaders</code> object from the
 *  specified input stream object./* w  ww . java2 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);

    m_canBeSubGraphed = is.readBoolean();

    String temp = UTFReaderWriter.readUTF(is);

    if (temp.equals(""))
        m_scope = null;

    else
        m_scope = temp;

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

    else
        m_appName = temp;

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

    else
        setApplicationGUID(temp);

    temp = UTFReaderWriter.readUTF(is);

    if (temp == null || temp.trim().equals(""))
        formatStringAsDate("");
    else
        formatStringAsDate(temp);

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

    else
        m_category = temp;

    int tempInt;

    if ((tempInt = is.readInt()) != 0)
        for (int i = 0; i < tempInt; i++) {
            String name = UTFReaderWriter.readUTF(is);

            m_authorNames.add(name);
        }

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

    else
        m_iconName = temp;

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

    else
        m_shortDescription = temp;

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

    else
        m_longDescription = temp;

    if ((tempInt = is.readInt()) != 0)
        for (int i = 0; i < tempInt; i++) {
            String name = UTFReaderWriter.readUTF(is);

            m_compatibleWith.add(name);
        }

    m_maxInstLimit = is.readInt();

    if ((tempInt = is.readInt()) != 0)
        for (int i = 0; i < tempInt; i++) {
            Param param = new Param();

            param.fromStream(is, versionNo);
            m_params.add(param);
        }

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

    else
        m_version = temp;

    m_isVersionLocked = is.readBoolean();

    m_strProfile = UTFReaderWriter.readUTF(is);

    int result = is.readInt();

    if (result == 1) {
        m_appContext = new ApplicationContext();
        m_appContext.fromStream(is, versionNo);
    }
}

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