Example usage for java.io DataInputStream readInt

List of usage examples for java.io DataInputStream readInt

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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:org.apache.jackrabbit.core.persistence.bundle.util.BundleBinding.java

/**
 * Deserializes a <code>NodePropBundle</code> from a data input stream.
 *
 * @param in the input stream//from www.ja  va2s  . c  o m
 * @param id the node id for the new bundle
 * @return the bundle
 * @throws IOException if an I/O error occurs.
 */
public NodePropBundle readBundle(DataInputStream in, NodeId id) throws IOException {

    NodePropBundle bundle = new NodePropBundle(this, id);

    // read version and primary type...special handling
    int index = in.readInt();

    // get version
    int version = (index >> 24) & 0xff;
    index &= 0x00ffffff;
    String uri = nsIndex.indexToString(index);
    String local = nameIndex.indexToString(in.readInt());
    Name nodeTypeName = NameFactoryImpl.getInstance().create(uri, local);

    // primaryType
    bundle.setNodeTypeName(nodeTypeName);

    // parentUUID
    bundle.setParentId(readID(in));

    // definitionId
    in.readUTF();

    // mixin types
    Set mixinTypeNames = new HashSet();
    Name name = readIndexedQName(in);
    while (name != null) {
        mixinTypeNames.add(name);
        name = readIndexedQName(in);
    }
    bundle.setMixinTypeNames(mixinTypeNames);

    // properties
    name = readIndexedQName(in);
    while (name != null) {
        PropertyId pId = new PropertyId(bundle.getId(), name);
        // skip redundant primaryType, mixinTypes and uuid properties
        if (name.equals(NameConstants.JCR_PRIMARYTYPE) || name.equals(NameConstants.JCR_MIXINTYPES)
                || name.equals(NameConstants.JCR_UUID)) {
            readPropertyEntry(in, pId);
            name = readIndexedQName(in);
            continue;
        }
        NodePropBundle.PropertyEntry pState = readPropertyEntry(in, pId);
        bundle.addProperty(pState);
        name = readIndexedQName(in);
    }

    // set referenceable flag
    bundle.setReferenceable(in.readBoolean());

    // child nodes (list of uuid/name pairs)
    NodeId childId = readID(in);
    while (childId != null) {
        bundle.addChildNodeEntry(readQName(in), childId);
        childId = readID(in);
    }

    // read modcount, since version 1.0
    if (version >= VERSION_1) {
        bundle.setModCount(readModCount(in));
    }

    // read shared set, since version 2.0
    Set sharedSet = new HashSet();
    if (version >= VERSION_2) {
        // shared set (list of parent uuids)
        NodeId parentId = readID(in);
        while (parentId != null) {
            sharedSet.add(parentId);
            parentId = readID(in);
        }
    }
    bundle.setSharedSet(sharedSet);

    return bundle;
}

From source file:org.apache.carbondata.core.util.CarbonUtil.java

/**
 * Read level metadata file and return cardinality
 *
 * @param levelPath/*  w  w  w .  j a  v a  2s . c om*/
 * @return
 * @throws IOException
 */
public static int[] getCardinalityFromLevelMetadataFile(String levelPath) throws IOException {
    DataInputStream dataInputStream = null;
    int[] cardinality = null;

    try {
        if (FileFactory.isFileExist(levelPath, FileFactory.getFileType(levelPath))) {
            dataInputStream = FileFactory.getDataInputStream(levelPath, FileFactory.getFileType(levelPath));

            cardinality = new int[dataInputStream.readInt()];

            for (int i = 0; i < cardinality.length; i++) {
                cardinality[i] = dataInputStream.readInt();
            }
        }
    } finally {
        closeStreams(dataInputStream);
    }

    return cardinality;
}

From source file:org.apache.mele.embedded.HadoopQueueEmbedded.java

private boolean ackCheck() throws IOException {
    LOG.info("Starting ack check");
    BitSet bitSet = new BitSet();
    FileSystem fileSystem = null;
    try {// w w w.ja  va 2 s.  c  o  m
        _ackLock.lock();
        _ackOutputStream.close();
        fileSystem = newFileSystem(_file);
        FileStatus fileStatus = fileSystem.getFileStatus(_file);
        long dataLength = fileStatus.getLen();
        long totalAckLength = getTotalAckLength(fileSystem);
        if (!couldContainAllAcks(totalAckLength)) {
            LOG.info("Existing early [" + totalAckLength + "] because [" + totalAckLength % 12 + "]");
            return false;
        }
        for (Path ackFile : _ackFiles) {
            LOG.info("Starting ack check for file [" + ackFile + "]");
            DFSInputStream inputStream = null;
            try {
                inputStream = getDFS(fileSystem.open(ackFile));
                long length = inputStream.getFileLength();
                DataInputStream dataInputStream = new DataInputStream(inputStream);
                while (length > 0) {
                    int pos = (int) dataInputStream.readLong();
                    // @TODO check position
                    // 4 bytes for storing the length of the message
                    int len = dataInputStream.readInt() + 4;
                    bitSet.set(pos, pos + len);
                    length -= 12;
                }
                if (bitSet.cardinality() == dataLength) {
                    return true;
                }
            } finally {
                if (inputStream != null) {
                    inputStream.close();
                }
            }
        }
        return false;
    } finally {
        reopenAckFile(fileSystem);
        _ackLock.unlock();
        if (fileSystem != null) {
            fileSystem.close();
        }
    }
}

From source file:org.apache.jackrabbit.core.persistence.bundle.util.BundleBinding.java

/**
 * Checks a <code>NodePropBundle</code> from a data input stream.
 *
 * @param in the input stream/*from  w w w.  j  ava 2s.  c om*/
 * @return <code>true</code> if the data is valid;
 *         <code>false</code> otherwise.
 */
public boolean checkBundle(DataInputStream in) {
    int version;
    // primaryType & version
    try {
        // read version and primary type...special handling
        int index = in.readInt();

        // get version
        version = (index >> 24) & 0xff;
        index &= 0x00ffffff;
        String uri = nsIndex.indexToString(index);
        String local = nameIndex.indexToString(in.readInt());
        Name nodeTypeName = NameFactoryImpl.getInstance().create(uri, local);

        log.debug("Serialzation Version: " + version);
        log.debug("NodeTypeName: " + nodeTypeName);
    } catch (IOException e) {
        log.error("Error while reading NodeTypeName: " + e);
        return false;
    }
    try {
        NodeId parentId = readID(in);
        log.debug("ParentUUID: " + parentId);
    } catch (IOException e) {
        log.error("Error while reading ParentUUID: " + e);
        return false;
    }
    try {
        String definitionId = in.readUTF();
        log.debug("DefinitionId: " + definitionId);
    } catch (IOException e) {
        log.error("Error while reading DefinitionId: " + e);
        return false;
    }
    try {
        Name mixinName = readIndexedQName(in);
        while (mixinName != null) {
            log.debug("MixinTypeName: " + mixinName);
            mixinName = readIndexedQName(in);
        }
    } catch (IOException e) {
        log.error("Error while reading MixinTypes: " + e);
        return false;
    }
    try {
        Name propName = readIndexedQName(in);
        while (propName != null) {
            log.debug("PropertyName: " + propName);
            if (!checkPropertyState(in)) {
                return false;
            }
            propName = readIndexedQName(in);
        }
    } catch (IOException e) {
        log.error("Error while reading property names: " + e);
        return false;
    }
    try {
        boolean hasUUID = in.readBoolean();
        log.debug("hasUUID: " + hasUUID);
    } catch (IOException e) {
        log.error("Error while reading 'hasUUID': " + e);
        return false;
    }
    try {
        NodeId cneId = readID(in);
        while (cneId != null) {
            Name cneName = readQName(in);
            log.debug("ChildNodentry: " + cneId + ":" + cneName);
            cneId = readID(in);
        }
    } catch (IOException e) {
        log.error("Error while reading child node entry: " + e);
        return false;
    }

    if (version >= VERSION_1) {
        try {
            short modCount = readModCount(in);
            log.debug("modCount: " + modCount);
        } catch (IOException e) {
            log.error("Error while reading mod cout: " + e);
            return false;
        }
    }

    return true;
}

From source file:org.apache.jackrabbit.core.persistence.bundle.util.BundleBinding.java

/**
 * Checks a <code>NodePropBundle</code> from a data input stream.
 *
 * @param in the input stream//from   w  ww  .j a  v a2  s .  c  om
 * @return <code>true</code> if the data is valid;
 *         <code>false</code> otherwise.
 */
public boolean checkBundle(DataInputStream in) {
    int version;
    // primaryType & version
    try {
        // read version and primary type...special handling
        int index = in.readInt();

        // get version
        version = (index >> 24) & 0xff;
        index &= 0x00ffffff;
        String uri = nsIndex.indexToString(index);
        String local = nameIndex.indexToString(in.readInt());
        Name nodeTypeName = NameFactoryImpl.getInstance().create(uri, local);

        log.debug("Serialzation Version: " + version);
        log.debug("NodeTypeName: " + nodeTypeName);
    } catch (IOException e) {
        log.error("Error while reading NodeTypeName: " + e);
        return false;
    }
    try {
        UUID parentUuid = readUUID(in);
        log.debug("ParentUUID: " + parentUuid);
    } catch (IOException e) {
        log.error("Error while reading ParentUUID: " + e);
        return false;
    }
    try {
        String definitionId = in.readUTF();
        log.debug("DefinitionId: " + definitionId);
    } catch (IOException e) {
        log.error("Error while reading DefinitionId: " + e);
        return false;
    }
    try {
        Name mixinName = readIndexedQName(in);
        while (mixinName != null) {
            log.debug("MixinTypeName: " + mixinName);
            mixinName = readIndexedQName(in);
        }
    } catch (IOException e) {
        log.error("Error while reading MixinTypes: " + e);
        return false;
    }
    try {
        Name propName = readIndexedQName(in);
        while (propName != null) {
            log.debug("PropertyName: " + propName);
            if (!checkPropertyState(in)) {
                return false;
            }
            propName = readIndexedQName(in);
        }
    } catch (IOException e) {
        log.error("Error while reading property names: " + e);
        return false;
    }
    try {
        boolean hasUUID = in.readBoolean();
        log.debug("hasUUID: " + hasUUID);
    } catch (IOException e) {
        log.error("Error while reading 'hasUUID': " + e);
        return false;
    }
    try {
        UUID cneUUID = readUUID(in);
        while (cneUUID != null) {
            Name cneName = readQName(in);
            log.debug("ChildNodentry: " + cneUUID + ":" + cneName);
            cneUUID = readUUID(in);
        }
    } catch (IOException e) {
        log.error("Error while reading child node entry: " + e);
        return false;
    }

    if (version >= VERSION_1) {
        try {
            short modCount = readModCount(in);
            log.debug("modCount: " + modCount);
        } catch (IOException e) {
            log.error("Error while reading mod cout: " + e);
            return false;
        }
    }

    return true;
}

From source file:org.apache.jackrabbit.core.persistence.bundle.util.BundleBinding.java

/**
 * Deserializes a <code>PropertyState</code> from the data input stream.
 *
 * @param in the input stream/* w  w  w  . j a va2 s  . c  o m*/
 * @param id the property id for the new property entry
 * @return the property entry
 * @throws IOException if an I/O error occurs.
 */
public NodePropBundle.PropertyEntry readPropertyEntry(DataInputStream in, PropertyId id) throws IOException {
    NodePropBundle.PropertyEntry entry = new NodePropBundle.PropertyEntry(id);
    // type and modcount
    int type = in.readInt();
    entry.setModCount((short) ((type >> 16) & 0x0ffff));
    type &= 0x0ffff;
    entry.setType(type);

    // multiValued
    entry.setMultiValued(in.readBoolean());
    // definitionId
    entry.setPropDefId(PropDefId.valueOf(in.readUTF()));
    // values
    int count = in.readInt(); // count
    InternalValue[] values = new InternalValue[count];
    String[] blobIds = new String[count];
    for (int i = 0; i < count; i++) {
        InternalValue val;
        switch (type) {
        case PropertyType.BINARY:
            int size = in.readInt();
            if (size == BINARY_IN_DATA_STORE) {
                val = InternalValue.create(dataStore, in.readUTF());
            } else if (size == BINARY_IN_BLOB_STORE) {
                blobIds[i] = in.readUTF();
                try {
                    if (blobStore instanceof ResourceBasedBLOBStore) {
                        val = InternalValue
                                .create(((ResourceBasedBLOBStore) blobStore).getResource(blobIds[i]));
                    } else {
                        val = InternalValue.create(blobStore.get(blobIds[i]));
                    }
                } catch (IOException e) {
                    if (errorHandling.ignoreMissingBlobs()) {
                        log.warn("Ignoring error while reading blob-resource: " + e);
                        val = InternalValue.create(new byte[0]);
                    } else {
                        throw e;
                    }
                } catch (Exception e) {
                    throw new IOException("Unable to create property value: " + e.toString());
                }
            } else {
                // short values into memory
                byte[] data = new byte[size];
                in.readFully(data);
                val = InternalValue.create(data);
            }
            break;
        case PropertyType.DOUBLE:
            val = InternalValue.create(in.readDouble());
            break;
        case PropertyType.DECIMAL:
            val = InternalValue.create(readDecimal(in));
            break;
        case PropertyType.LONG:
            val = InternalValue.create(in.readLong());
            break;
        case PropertyType.BOOLEAN:
            val = InternalValue.create(in.readBoolean());
            break;
        case PropertyType.NAME:
            val = InternalValue.create(readQName(in));
            break;
        case PropertyType.WEAKREFERENCE:
        case PropertyType.REFERENCE:
            val = InternalValue.create(readID(in));
            break;
        default:
            // because writeUTF(String) has a size limit of 64k,
            // Strings are serialized as <length><byte[]>
            int len = in.readInt();
            byte[] bytes = new byte[len];
            in.readFully(bytes);
            val = InternalValue.valueOf(new String(bytes, "UTF-8"), type);
        }
        values[i] = val;
    }
    entry.setValues(values);
    entry.setBlobIds(blobIds);

    return entry;
}

From source file:org.apache.jackrabbit.core.persistence.bundle.util.BundleBinding.java

/**
 * Deserializes a <code>PropertyState</code> from the data input stream.
 *
 * @param in the input stream//from  ww w. j  av  a2 s  . c o  m
 * @param id the property id for the new property entry
 * @return the property entry
 * @throws IOException if an I/O error occurs.
 */
public NodePropBundle.PropertyEntry readPropertyEntry(DataInputStream in, PropertyId id) throws IOException {
    NodePropBundle.PropertyEntry entry = new NodePropBundle.PropertyEntry(id);
    // type and modcount
    int type = in.readInt();
    entry.setModCount((short) ((type >> 16) & 0x0ffff));
    type &= 0x0ffff;
    entry.setType(type);

    // multiValued
    entry.setMultiValued(in.readBoolean());
    // definitionId
    entry.setPropDefId(PropDefId.valueOf(in.readUTF()));
    // values
    int count = in.readInt(); // count
    InternalValue[] values = new InternalValue[count];
    String[] blobIds = new String[count];
    for (int i = 0; i < count; i++) {
        InternalValue val;
        switch (type) {
        case PropertyType.BINARY:
            int size = in.readInt();
            if (size == BINARY_IN_DATA_STORE) {
                val = InternalValue.create(dataStore, in.readUTF());
            } else if (size == BINARY_IN_BLOB_STORE) {
                blobIds[i] = in.readUTF();
                try {
                    if (blobStore instanceof ResourceBasedBLOBStore) {
                        val = InternalValue
                                .create(((ResourceBasedBLOBStore) blobStore).getResource(blobIds[i]));
                    } else {
                        val = InternalValue.create(blobStore.get(blobIds[i]));
                    }
                } catch (IOException e) {
                    if (errorHandling.ignoreMissingBlobs()) {
                        log.warn("Ignoring error while reading blob-resource: " + e);
                        val = InternalValue.create(new byte[0]);
                    } else {
                        throw e;
                    }
                } catch (Exception e) {
                    throw new IOException("Unable to create property value: " + e.toString());
                }
            } else {
                // short values into memory
                byte[] data = new byte[size];
                in.readFully(data);
                val = InternalValue.create(data);
            }
            break;
        case PropertyType.DOUBLE:
            val = InternalValue.create(in.readDouble());
            break;
        case PropertyType.DECIMAL:
            val = InternalValue.create(readDecimal(in));
            break;
        case PropertyType.LONG:
            val = InternalValue.create(in.readLong());
            break;
        case PropertyType.BOOLEAN:
            val = InternalValue.create(in.readBoolean());
            break;
        case PropertyType.NAME:
            val = InternalValue.create(readQName(in));
            break;
        case PropertyType.WEAKREFERENCE:
        case PropertyType.REFERENCE:
            val = InternalValue.create(readUUID(in));
            break;
        default:
            // because writeUTF(String) has a size limit of 64k,
            // Strings are serialized as <length><byte[]>
            int len = in.readInt();
            byte[] bytes = new byte[len];
            in.readFully(bytes);
            val = InternalValue.valueOf(new String(bytes, "UTF-8"), type);
        }
        values[i] = val;
    }
    entry.setValues(values);
    entry.setBlobIds(blobIds);

    return entry;
}

From source file:org.apache.jackrabbit.core.persistence.bundle.util.BundleBinding.java

/**
 * Deserializes a <code>NodePropBundle</code> from a data input stream.
 *
 * @param in the input stream//from ww w.  ja va 2  s .  c  o  m
 * @param id the node id for the new bundle
 * @return the bundle
 * @throws IOException if an I/O error occurs.
 */
public NodePropBundle readBundle(DataInputStream in, NodeId id) throws IOException {

    NodePropBundle bundle = new NodePropBundle(this, id);

    // read version and primary type...special handling
    int index = in.readInt();

    // get version
    int version = (index >> 24) & 0xff;
    index &= 0x00ffffff;
    String uri = nsIndex.indexToString(index);
    String local = nameIndex.indexToString(in.readInt());
    Name nodeTypeName = NameFactoryImpl.getInstance().create(uri, local);

    // primaryType
    bundle.setNodeTypeName(nodeTypeName);

    // parentUUID
    bundle.setParentId(readID(in));

    // definitionId
    bundle.setNodeDefId(NodeDefId.valueOf(in.readUTF()));

    // mixin types
    Set<Name> mixinTypeNames = new HashSet<Name>();
    Name name = readIndexedQName(in);
    while (name != null) {
        mixinTypeNames.add(name);
        name = readIndexedQName(in);
    }
    bundle.setMixinTypeNames(mixinTypeNames);

    // properties
    name = readIndexedQName(in);
    while (name != null) {
        PropertyId pId = new PropertyId(bundle.getId(), name);
        // skip redundant primaryType, mixinTypes and uuid properties
        if (name.equals(NameConstants.JCR_PRIMARYTYPE) || name.equals(NameConstants.JCR_MIXINTYPES)
                || name.equals(NameConstants.JCR_UUID)) {
            readPropertyEntry(in, pId);
            name = readIndexedQName(in);
            continue;
        }
        NodePropBundle.PropertyEntry pState = readPropertyEntry(in, pId);
        bundle.addProperty(pState);
        name = readIndexedQName(in);
    }

    // set referenceable flag
    bundle.setReferenceable(in.readBoolean());

    // child nodes (list of uuid/name pairs)
    NodeId childId = readID(in);
    while (childId != null) {
        bundle.addChildNodeEntry(readQName(in), childId);
        childId = readID(in);
    }

    // read modcount, since version 1.0
    if (version >= VERSION_1) {
        bundle.setModCount(readModCount(in));
    }

    // read shared set, since version 2.0
    Set<NodeId> sharedSet = new HashSet<NodeId>();
    if (version >= VERSION_2) {
        // shared set (list of parent uuids)
        NodeId parentId = readID(in);
        while (parentId != null) {
            sharedSet.add(parentId);
            parentId = readID(in);
        }
    }
    bundle.setSharedSet(sharedSet);

    return bundle;
}

From source file:org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore.java

private void loadRMSequentialNumberState(RMState rmState) throws Exception {
    byte[] seqData = getData(dtSequenceNumberPath);
    if (seqData != null) {
        ByteArrayInputStream seqIs = new ByteArrayInputStream(seqData);
        DataInputStream seqIn = new DataInputStream(seqIs);

        try {//from  ww  w  .ja  v  a 2 s .  c o  m
            rmState.rmSecretManagerState.dtSequenceNumber = seqIn.readInt();
        } finally {
            seqIn.close();
        }
    }
}

From source file:PersistentRankingMIDlet.java

public BookInfo getBookInfo(int id) throws RecordStoreException, IOException {
    byte[] bytes = store.getRecord(id);
    DataInputStream is = new DataInputStream(new ByteArrayInputStream(bytes));

    String isbn = is.readUTF();//from www. java2s  .c  o m
    BookInfo info = new BookInfo(isbn);
    info.id = id;
    info.title = is.readUTF();
    info.ranking = is.readInt();
    info.reviews = is.readInt();
    info.lastRanking = is.readInt();
    info.lastReviews = is.readInt();

    return info;
}