Java DataInput.readFully方法代码示例

import java.io.DataInput; //导入方法依赖的package包/类
public Token deserialize(DataInput in, IPartitioner p, int version) throws IOException
{
    int size = in.readInt();
    byte[] bytes = new byte[size];
    in.readFully(bytes);
    return p.getTokenFactory().fromByteArray(ByteBuffer.wrap(bytes));
}
 

import java.io.DataInput; //导入方法依赖的package包/类
/**
 * Reads {@link BigInteger} value that was written via {@link #writeBigInteger(BigInteger, DataOutput)}.
 *
 * @param in Data input.
 *
 * @return Value.
 *
 * @throws IOException if failed to read value.
 */
public static BigInteger readBigInteger(DataInput in) throws IOException {
    byte hint = in.readByte();

    switch (hint) {
        case DECIMAL_ZERO: {
            return BigInteger.ZERO;
        }
        case DECIMAL_ONE: {
            return BigInteger.ONE;
        }
        case DECIMAL_TEN: {
            return BigInteger.TEN;
        }
        case DECIMAL_SMALL_UNSCALED: {
            long val = readVarLong(in);

            return BigInteger.valueOf(val);
        }
        case DECIMAL_BIG: {
            int bytesLen = readVarIntUnsigned(in);

            byte[] bytes = new byte[bytesLen];

            in.readFully(bytes);

            return new BigInteger(bytes);
        }
        default: {
            throw new StreamCorruptedException("Unexpected hint for " + BigInteger.class.getName() + " value [hint=" + hint + ']');
        }
    }
}
 

import java.io.DataInput; //导入方法依赖的package包/类
@Override
byte[] decrypt(byte[] key, byte[] data) {
  try {
    // Sun's impelemntation of GCM uses a custom algorithm name. We handle this odd (potentially incorrect) behavior here.
    AlgorithmParameters params = AlgorithmParameters.getInstance(isInstanceOfSunProvidedGCM ? "GCM" : "AES");

    // Read the metadata.
    ByteArrayInputStream stream = new ByteArrayInputStream(data);
    DataInput in = new DataInputStream(stream);

    int metadataLength = WritableUtils.readVInt(in);
    byte[] metadata = new byte[metadataLength];
    in.readFully(metadata);
    params.init(metadata);

    // Decrypt the remaining data.
    SecretKeySpec keySpec = new SecretKeySpec(key, AES);
    cipher.init(Cipher.DECRYPT_MODE, keySpec, params);
    byte[] ciphertext = new byte[stream.available()];
    in.readFully(ciphertext);

    cipher.init(Cipher.DECRYPT_MODE, keySpec, params);
    return cipher.doFinal(ciphertext);
  } catch (NoSuchAlgorithmException | InvalidAlgorithmParameterException | InvalidKeyException | IllegalBlockSizeException | BadPaddingException
      | IOException e) {
    throw new EncryptionException(e);
  }
}
 

import java.io.DataInput; //导入方法依赖的package包/类
/**
 */
@Override
public void readFields(DataInput in) throws IOException {
  keyId = WritableUtils.readVInt(in);
  expiryDate = WritableUtils.readVLong(in);
  int len = WritableUtils.readVIntInRange(in, -1, MAX_KEY_LEN);
  if (len == -1) {
    keyBytes = null;
  } else {
    keyBytes = new byte[len];
    in.readFully(keyBytes);
  }
}
 

import java.io.DataInput; //导入方法依赖的package包/类
protected String readString(final DataInput in) throws IOException {
    final String string = in.readUTF();
    if (!ID_SPLITTED.equals(string)) {
        return string;
    }
    final int size = in.readInt();
    final byte[] bytes = new byte[size];
    in.readFully(bytes);
    return new String(bytes, "utf-8");
}
 

import java.io.DataInput; //导入方法依赖的package包/类
@Override
public void readFields(DataInput in) throws IOException {
  length = in.readInt();
  if (data == null || length > data.length)
    data = new byte[length];
  in.readFully(data, 0, length);
}
 

import java.io.DataInput; //导入方法依赖的package包/类
@Override
public void readFields(DataInput in) throws IOException {
  id = WritableUtils.readVInt(in);
  expirationDate = WritableUtils.readVLong(in);
  int keyLength = WritableUtils.readVInt(in);
  if (keyLength < 0) {
    secret = null;
  } else {
    byte[] keyBytes = new byte[keyLength];
    in.readFully(keyBytes);
    secret = AuthenticationTokenSecretManager.createSecretKey(keyBytes);
  }
}
 

import java.io.DataInput; //导入方法依赖的package包/类
/**
 * Construct object from input stream.
 *
 * @param name_index Index in constant pool to CONSTANT_Utf8
 * @param length Content length in bytes
 * @param input Input stream
 * @param constant_pool Array of constants
 * @throws IOException
 */
Synthetic(final int name_index, final int length, final DataInput input, final ConstantPool constant_pool)
        throws IOException {
    this(name_index, length, (byte[]) null, constant_pool);
    if (length > 0) {
        bytes = new byte[length];
        input.readFully(bytes);
        System.err.println("Synthetic attribute with length > 0");
    }
}
 

import java.io.DataInput; //导入方法依赖的package包/类
@Override
public void readFields(DataInput in) throws IOException {
  int tableNameLen = in.readInt();
  byte[] name = new byte[tableNameLen];
  in.readFully(name);
  this.tableName = TableName.valueOf(name);
  this.startRow = in.readInt();
  this.rows = in.readInt();
  this.totalRows = in.readInt();
  this.clients = in.readInt();
  this.flushCommits = in.readBoolean();
  this.writeToWAL = in.readBoolean();
  this.useTags = in.readBoolean();
  this.noOfTags = in.readInt();
}
 

import java.io.DataInput; //导入方法依赖的package包/类
@Override
public void readFields(DataInput in) throws IOException {
  length = in.readUnsignedShort();
  if (bytes == null || bytes.length < length)
    bytes = new byte[length];
  in.readFully(bytes, 0, length);
}
 

import java.io.DataInput; //导入方法依赖的package包/类
@Override
public void readFields(DataInput in) throws IOException {
  super.readFields(in);
  byte aclEntriesSize = in.readByte();
  if (aclEntriesSize != NO_ACL_ENTRIES) {
    aclEntries = Lists.newArrayListWithCapacity(aclEntriesSize);
    for (int i = 0; i < aclEntriesSize; ++i) {
      aclEntries.add(new AclEntry.Builder()
        .setScope(ACL_ENTRY_SCOPES[in.readByte()])
        .setType(ACL_ENTRY_TYPES[in.readByte()])
        .setName(WritableUtils.readString(in))
        .setPermission(FS_ACTIONS[in.readByte()])
        .build());
    }
  } else {
    aclEntries = null;
  }
  
  int xAttrsSize = in.readInt();
  if (xAttrsSize != NO_XATTRS) {
    xAttrs = Maps.newHashMap();
    for (int i = 0; i < xAttrsSize; ++i) {
      final String name = WritableUtils.readString(in);
      final int valueLen = in.readInt();
      byte[] value = null;
      if (valueLen > -1) {
        value = new byte[valueLen];
        if (valueLen > 0) {
          in.readFully(value);
        }
      }
      xAttrs.put(name, value);
    }
  } else {
    xAttrs = null;
  }
}
 

import java.io.DataInput; //导入方法依赖的package包/类
@Override
public void fromData(DataInput in) throws IOException, ClassNotFoundException {
  long l;
  if (in == null) {
    throw new NullPointerException("Null DataInput");
  }
  this.hasKeys = in.readBoolean();
  this.index = in.readInt();
  this.typeArray = new byte[index];
  this.keyArray = new Object[index];
  this.objectArray = new Object[index];
  byte objectType;
  Object value;
  int length;
  byte[] bytes;
  for (int i = 0; i < this.index; i++) {
    if (this.hasKeys) {
      length = in.readByte();
      bytes = new byte[length];
      in.readFully(bytes, 0, length);
      this.keyArray[i] = bytes;
    }
    objectType = in.readByte();
    if (objectType == BYTES) {
      length = in.readShort();
      if (length >= 0) {
        bytes = new byte[length];
        in.readFully(bytes, 0, length);
      } else {
        bytes = null;
      }
      value = bytes;
    } else if (objectType == OBJECT) {
      value = DataSerializer.readObject(in);
    } else if (objectType == EXCEPTION) {
      byte[] exBytes = DataSerializer.readByteArray(in);
      value = CacheServerHelper.deserialize(exBytes);
      // ignore the exception string meant for native clients
      DataSerializer.readString(in);
    } else {
      value = null;
    }
    this.objectArray[i] = value;
  }
}
 

import java.io.DataInput; //导入方法依赖的package包/类
private static byte[] readVarintBytes(DataInput in) throws IOException {
  final int length = ProtoUtil.readRawVarint32(in);
  final byte[] bytes = new byte[length];
  in.readFully(bytes);
  return bytes;
}
 

import java.io.DataInput; //导入方法依赖的package包/类
public void readFields(final DataInput in) throws IOException {
  this.length = in.readInt();
  this.bytes = new byte[this.length];
  in.readFully(this.bytes, 0, this.length);
  this.offset = 0;
}
 

import java.io.DataInput; //导入方法依赖的package包/类
@Override
public void readFields(DataInput in) throws IOException {
  this.bytes = new byte[in.readInt()];
  in.readFully(this.bytes);
  weight = in.readDouble();
}