Example usage for java.io DataInput readFully

Introduction

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

Prototype

void readFully(byte b[]) throws IOException;

Source Link

Document

Reads some bytes from an input stream and stores them into the buffer array b .

Usage

From source file:org.cloudata.core.client.CellValueMatcherInfo.java

@Override
public void readFields(DataInput in) throws IOException {
    this.version = in.readInt();

    int classCount = in.readInt();

    for (int i = 0; i < classCount; i++) {
        String className = CWritableUtils.readString(in);
        int length = in.readInt();

        if (length > 0) {
            byte[] classByte = new byte[length];
            in.readFully(classByte);

            classNames.add(className);//from   w  ww.ja  v  a  2s  . co  m
            classBytes.add(classByte);
        }
    }
}

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From source file:org.cloudata.core.common.io.CObjectWritable.java

private static Object readColumnValue(DataInput in, CloudataConf conf, Class<?> declaredClass, int length)
        throws IOException {
    long startTime = System.currentTimeMillis();

    int totalByteSize = in.readInt();
    byte[] buf = new byte[totalByteSize];
    in.readFully(buf);
    long endTime = System.currentTimeMillis();
    //LOG.fatal("readColumnValue1:length=" + length + ",bytes=" + totalByteSize + ",time=" + (endTime - startTime));

    DataInputStream byteDataIn = new DataInputStream(new ByteArrayInputStream(buf));

    ColumnValue[] instance = (ColumnValue[]) Array.newInstance(declaredClass.getComponentType(), length);
    //startTime = System.currentTimeMillis();
    Class componentClass = declaredClass.getComponentType();
    for (int i = 0; i < length; i++) {
        //Array.set(instance, i, readObject(byteDataIn, null, conf, true, declaredClass.getComponentType()));
        instance[i] = (ColumnValue) readObject(byteDataIn, null, conf, true, componentClass);
    }/*  w w  w.j a va  2s. c  o m*/
    byteDataIn.close();
    byteDataIn = null;
    buf = null;
    //endTime = System.currentTimeMillis();
    //LOG.fatal("readColumnValue2:time=" + (endTime - startTime));
    return instance;
}

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From source file:org.cloudata.core.common.io.CObjectWritable.java

/** Read a {@link CWritable}, {@link String}, primitive type, or an array of
 * the preceding. *//* w w  w  .j a  va 2  s  .com*/
@SuppressWarnings("unchecked")
public static Object readObject(DataInput in, CObjectWritable objectWritable, CloudataConf conf,
        boolean arrayComponent, Class componentClass) throws IOException {
    String className;
    if (arrayComponent) {
        className = componentClass.getName();
    } else {
        className = CUTF8.readString(in);
        //SANGCHUL
        //   System.out.println("SANGCHUL] className:" + className);
    }

    Class<?> declaredClass = PRIMITIVE_NAMES.get(className);
    if (declaredClass == null) {
        try {
            declaredClass = conf.getClassByName(className);
        } catch (ClassNotFoundException e) {
            //SANGCHUL
            e.printStackTrace();
            throw new RuntimeException("readObject can't find class[className=" + className + "]", e);
        }
    }

    Object instance;

    if (declaredClass.isPrimitive()) { // primitive types

        if (declaredClass == Boolean.TYPE) { // boolean
            instance = Boolean.valueOf(in.readBoolean());
        } else if (declaredClass == Character.TYPE) { // char
            instance = Character.valueOf(in.readChar());
        } else if (declaredClass == Byte.TYPE) { // byte
            instance = Byte.valueOf(in.readByte());
        } else if (declaredClass == Short.TYPE) { // short
            instance = Short.valueOf(in.readShort());
        } else if (declaredClass == Integer.TYPE) { // int
            instance = Integer.valueOf(in.readInt());
        } else if (declaredClass == Long.TYPE) { // long
            instance = Long.valueOf(in.readLong());
        } else if (declaredClass == Float.TYPE) { // float
            instance = Float.valueOf(in.readFloat());
        } else if (declaredClass == Double.TYPE) { // double
            instance = Double.valueOf(in.readDouble());
        } else if (declaredClass == Void.TYPE) { // void
            instance = null;
        } else {
            throw new IllegalArgumentException("Not a primitive: " + declaredClass);
        }

    } else if (declaredClass.isArray()) { // array
        //System.out.println("SANGCHUL] is array");
        int length = in.readInt();
        //System.out.println("SANGCHUL] array length : " + length);
        //System.out.println("Read:in.readInt():" + length);
        if (declaredClass.getComponentType() == Byte.TYPE) {
            byte[] bytes = new byte[length];
            in.readFully(bytes);
            instance = bytes;
        } else if (declaredClass.getComponentType() == ColumnValue.class) {
            instance = readColumnValue(in, conf, declaredClass, length);
        } else {
            Class componentType = declaredClass.getComponentType();

            // SANGCHUL
            //System.out.println("SANGCHUL] componentType : " + componentType.getName());

            instance = Array.newInstance(componentType, length);
            for (int i = 0; i < length; i++) {
                Object arrayComponentInstance = readObject(in, null, conf, !componentType.isArray(),
                        componentType);
                Array.set(instance, i, arrayComponentInstance);
                //Array.set(instance, i, readObject(in, conf));
            }
        }
    } else if (declaredClass == String.class) { // String
        instance = CUTF8.readString(in);
    } else if (declaredClass.isEnum()) { // enum
        instance = Enum.valueOf((Class<? extends Enum>) declaredClass, CUTF8.readString(in));
    } else if (declaredClass == ColumnValue.class) {
        //ColumnValue?  ?? ?? ?  ? ?.
        //? ?   ? ? ? ? . 
        Class instanceClass = null;
        try {
            short typeDiff = in.readShort();
            if (typeDiff == TYPE_DIFF) {
                instanceClass = conf.getClassByName(CUTF8.readString(in));
            } else {
                instanceClass = declaredClass;
            }
        } catch (ClassNotFoundException e) {
            throw new RuntimeException("readObject can't find class", e);
        }
        ColumnValue columnValue = new ColumnValue();
        columnValue.readFields(in);
        instance = columnValue;
    } else { // Writable

        Class instanceClass = null;
        try {
            short typeDiff = in.readShort();
            // SANGCHUL
            //System.out.println("SANGCHUL] typeDiff : " + typeDiff);
            //System.out.println("Read:in.readShort():" + typeDiff);
            if (typeDiff == TYPE_DIFF) {
                // SANGCHUL
                String classNameTemp = CUTF8.readString(in);
                //System.out.println("SANGCHUL] typeDiff : " + classNameTemp);
                instanceClass = conf.getClassByName(classNameTemp);
                //System.out.println("Read:UTF8.readString(in):" + instanceClass.getClass());
            } else {
                instanceClass = declaredClass;
            }
        } catch (ClassNotFoundException e) {

            // SANGCHUL
            e.printStackTrace();
            throw new RuntimeException("readObject can't find class", e);
        }

        CWritable writable = CWritableFactories.newInstance(instanceClass, conf);
        writable.readFields(in);
        //System.out.println("Read:writable.readFields(in)");
        instance = writable;

        if (instanceClass == NullInstance.class) { // null
            declaredClass = ((NullInstance) instance).declaredClass;
            instance = null;
        }
    }

    if (objectWritable != null) { // store values
        objectWritable.declaredClass = declaredClass;
        objectWritable.instance = instance;
    }

    return instance;
}

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From source file:org.cloudata.core.common.io.CWritableUtils.java

public static byte[] readCompressedByteArray(DataInput in) throws IOException {
    int length = in.readInt();
    if (length == -1)
        return null;
    byte[] buffer = new byte[length];
    in.readFully(buffer); // could/should use readFully(buffer,0,length)?
    GZIPInputStream gzi = new GZIPInputStream(new ByteArrayInputStream(buffer, 0, buffer.length));
    byte[] outbuf = new byte[length];
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    int len;//w ww. ja va  2 s .  co  m
    while ((len = gzi.read(outbuf, 0, outbuf.length)) != -1) {
        bos.write(outbuf, 0, len);
    }
    byte[] decompressed = bos.toByteArray();
    bos.close();
    gzi.close();
    return decompressed;
}

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From source file:org.cloudata.core.common.io.CWritableUtils.java

public static String readString(DataInput in) throws IOException {
    int length = in.readInt();
    if (length > 1024 * 1024 * 5) {
        LOG.error("too long String length: " + length);
        Thread.dumpStack();/*from  ww w  .  j a v  a  2s  . c  o  m*/
        throw new IOException("WritableUtils.readString: too long String length: " + length);
    }
    if (length == -1)
        return null;
    byte[] buffer = new byte[length];
    //long time1 = System.currentTimeMillis();
    in.readFully(buffer); // could/should use readFully(buffer,0,length)?
    //long time2 = System.currentTimeMillis();
    String result = new String(buffer, "UTF-8");
    //long time3 = System.currentTimeMillis();
    //System.out.println("readString:" + (time2-time1) + "," + (time3-time1));
    return result;
}

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From source file:org.cloudata.core.common.io.CWritableUtils.java

public static String readString(DataInput in, int maxLength) throws IOException {
    int length = in.readInt();
    if (length > maxLength) {
        Thread.dumpStack();/*from w  w  w  .  ja v a 2  s . c  om*/
        throw new IOException("WritableUtils.readString:too long String length: " + length);
    }
    if (length == -1)
        return null;
    byte[] buffer = new byte[length];
    in.readFully(buffer); // could/should use readFully(buffer,0,length)?
    return new String(buffer, "UTF-8");
}

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From source file:org.cloudata.core.tablet.ColumnValue.java

public void readFields(DataInput in) throws IOException {
    //long startNano = System.nanoTime();
    rowKey.readFields(in);/*from www  .j a va2s.co  m*/
    cellKey.readFields(in);
    int opCode = in.readInt();
    if (opCode == Constants.DELETEED) {
        deleted = true;
    } else if (opCode == Constants.INSERTED) {
        deleted = false;
    } else {
        throw new IOException("Wrong record operation code(DELETEED or INSERTED): " + opCode);
    }
    timestamp = in.readLong();
    numOfValues = in.readInt();
    int valueLength = in.readInt();
    //System.out.println(">>>>>" + valueLength);
    value = valueLength < 0 ? null : new byte[valueLength];
    if (value != null) {
        in.readFully(value);
    }
}

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From source file:org.cloudata.core.tabletserver.CommitLog.java

public void readFields(DataInput in) throws IOException {
    operation = in.readInt();/*from ww  w  . j  a  v a2 s. c om*/
    rowKey.readFields(in);
    columnName = CWritableUtils.readString(in);

    columnKey.readFields(in);
    timestamp = in.readLong();
    int length = in.readInt();

    if (length > MAX_VALUE_SIZE) {
        LOG.error("number of bytes in commitlog exceeds CommitLog.MAX_VALUE_SIZE[" + MAX_VALUE_SIZE + "]");
        throw new IOException("data size is too long.[" + length + "]");
    }

    if (length >= 0) {
        value = new byte[length];
        in.readFully(value);
    }
}

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From source file:org.deephacks.confit.internal.hbase.MultiKeyValueComparisonFilter.java

@Override
public void readFields(DataInput input) throws IOException {
    int sidSize = WritableUtils.readVInt(input);
    sid = new byte[sidSize];
    input.readFully(sid);
    maxResults = WritableUtils.readVInt(input);
    int restrictionLength = WritableUtils.readVInt(input);
    for (int i = 0; i < restrictionLength; i++) {
        QualifierRestriction restriction = RestrictionType.values()[WritableUtils.readVInt(input)]
                .newInstance();//from   ww  w .  jav a2 s  .co  m
        restriction.readFields(input);
        restrictions.add(restriction);
    }
}

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From source file:org.gradoop.model.impl.properties.PropertyValueList.java

@Override
public void readFields(DataInput dataInput) throws IOException {
    bytes = new byte[dataInput.readShort()];
    dataInput.readFully(bytes);
}

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