| | |
| | | */ |
| | | package org.opends.server.replication.protocol; |
| | | |
| | | import java.io.UnsupportedEncodingException; |
| | | import java.util.zip.DataFormatException; |
| | | |
| | | import org.opends.server.protocols.asn1.ASN1Exception; |
| | | import org.opends.server.protocols.internal.InternalClientConnection; |
| | | import java.io.UnsupportedEncodingException; |
| | | import org.opends.server.replication.common.AssuredMode; |
| | | import org.opends.server.replication.common.ChangeNumber; |
| | | import org.opends.server.types.AbstractOperation; |
| | | import org.opends.server.types.LDAPException; |
| | | import org.opends.server.types.operation.PostOperationAddOperation; |
| | | import org.opends.server.types.operation.PostOperationDeleteOperation; |
| | | import org.opends.server.types.operation.PostOperationModifyDNOperation; |
| | | import org.opends.server.types.operation.PostOperationModifyOperation; |
| | | import org.opends.server.types.operation.PostOperationOperation; |
| | | |
| | | /** |
| | | * Abstract class that must be extended to define a message |
| | | * used for sending Updates between servers. |
| | | */ |
| | | public abstract class UpdateMsg extends ReplicationMsg |
| | | public class UpdateMsg extends ReplicationMsg |
| | | implements Comparable<UpdateMsg> |
| | | { |
| | | /** |
| | |
| | | protected ChangeNumber changeNumber; |
| | | |
| | | /** |
| | | * The DN on which the update was originally done. |
| | | */ |
| | | protected String dn = null; |
| | | |
| | | /** |
| | | * True when the update must use assured replication. |
| | | */ |
| | | protected boolean assuredFlag = false; |
| | |
| | | /** |
| | | * When assured mode is safe data, gives the requested level. |
| | | */ |
| | | protected byte safeDataLevel = (byte)-1; |
| | | protected byte safeDataLevel = (byte)1; |
| | | |
| | | /** |
| | | * The uniqueId of the entry that was updated. |
| | | * The payload that must be encoded in this message. |
| | | */ |
| | | protected String uniqueId; |
| | | private byte[] payload; |
| | | |
| | | |
| | | /** |
| | | * Creates a new UpdateMsg. |
| | | * Creates a new empty UpdateMsg. |
| | | */ |
| | | public UpdateMsg() |
| | | protected UpdateMsg() |
| | | {} |
| | | |
| | | /** |
| | | * Creates a new UpdateMsg with the given informations. |
| | | * |
| | | * @param bytes A Byte Array with the encoded form of the message. |
| | | * |
| | | * @throws DataFormatException If bytes is not valid. |
| | | */ |
| | | UpdateMsg(byte[] bytes) throws DataFormatException |
| | | { |
| | | // Decode header |
| | | int pos = decodeHeader(MSG_TYPE_GENERIC_UPDATE, bytes); |
| | | |
| | | /* Read the payload : all the remaining bytes but the terminating 0 */ |
| | | int length = bytes.length - pos; |
| | | payload = new byte[length]; |
| | | try |
| | | { |
| | | System.arraycopy(bytes, pos, payload, 0, length); |
| | | } catch (IndexOutOfBoundsException e) |
| | | { |
| | | throw new DataFormatException(e.getMessage()); |
| | | } catch (ArrayStoreException e) |
| | | { |
| | | throw new DataFormatException(e.getMessage()); |
| | | } catch (NullPointerException e) |
| | | { |
| | | throw new DataFormatException(e.getMessage()); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * Creates a new UpdateMsg with the given informations. |
| | | * |
| | | * @param ctx The replication Context of the operation for which the |
| | | * update message must be created,. |
| | | * @param dn The DN of the entry on which the change |
| | | * that caused the creation of this object happened |
| | | * @param changeNumber The ChangeNumber associated with the change |
| | | * encoded in this message. |
| | | * @param payload The payload that must be encoded in this message. |
| | | */ |
| | | public UpdateMsg(OperationContext ctx, String dn) |
| | | public UpdateMsg(ChangeNumber changeNumber, byte[] payload) |
| | | { |
| | | this.payload = payload; |
| | | this.protocolVersion = ProtocolVersion.getCurrentVersion(); |
| | | this.changeNumber = ctx.getChangeNumber(); |
| | | this.uniqueId = ctx.getEntryUid(); |
| | | this.dn = dn; |
| | | } |
| | | |
| | | /** |
| | | * Creates a new UpdateMessage with the given informations. |
| | | * |
| | | * @param cn The ChangeNumber of the operation for which the |
| | | * UpdateMessage is created. |
| | | * @param entryUUID The Unique identifier of the entry that is updated |
| | | * by the operation for which the UpdateMessage is created. |
| | | * @param dn The DN of the entry on which the change |
| | | * that caused the creation of this object happened |
| | | */ |
| | | public UpdateMsg(ChangeNumber cn, String entryUUID, String dn) |
| | | { |
| | | this.protocolVersion = ProtocolVersion.getCurrentVersion(); |
| | | this.changeNumber = cn; |
| | | this.uniqueId = entryUUID; |
| | | this.dn = dn; |
| | | } |
| | | |
| | | /** |
| | | * Generates an Update Message with the provided information. |
| | | * |
| | | * @param op The operation for which the message must be created. |
| | | * @return The generated message. |
| | | */ |
| | | public static UpdateMsg generateMsg(PostOperationOperation op) |
| | | { |
| | | UpdateMsg msg = null; |
| | | switch (op.getOperationType()) |
| | | { |
| | | case MODIFY : |
| | | msg = new ModifyMsg((PostOperationModifyOperation) op); |
| | | break; |
| | | |
| | | case ADD: |
| | | msg = new AddMsg((PostOperationAddOperation) op); |
| | | break; |
| | | |
| | | case DELETE : |
| | | msg = new DeleteMsg((PostOperationDeleteOperation) op); |
| | | break; |
| | | |
| | | case MODIFY_DN : |
| | | msg = new ModifyDNMsg( (PostOperationModifyDNOperation) op); |
| | | break; |
| | | } |
| | | |
| | | return msg; |
| | | this.changeNumber = changeNumber; |
| | | } |
| | | |
| | | /** |
| | |
| | | } |
| | | |
| | | /** |
| | | * Get the DN on which the operation happened. |
| | | * |
| | | * @return The DN on which the operations happened. |
| | | */ |
| | | public String getDn() |
| | | { |
| | | return dn; |
| | | } |
| | | |
| | | /** |
| | | * Set the DN. |
| | | * @param dn The dn that must now be used for this message. |
| | | */ |
| | | public void setDn(String dn) |
| | | { |
| | | this.dn = dn; |
| | | } |
| | | |
| | | /** |
| | | * Get the Unique Identifier of the entry on which the operation happened. |
| | | * |
| | | * @return The Unique Identifier of the entry on which the operation happened. |
| | | */ |
| | | public String getUniqueId() |
| | | { |
| | | return uniqueId; |
| | | } |
| | | |
| | | /** |
| | | * Get a boolean indicating if the Update must be processed as an |
| | | * Asynchronous or as an assured replication. |
| | | * |
| | |
| | | return changeNumber.compareTo(msg.getChangeNumber()); |
| | | } |
| | | |
| | | /** |
| | | * Create and Operation from the message. |
| | | * |
| | | * @param conn connection to use when creating the message |
| | | * @return the created Operation |
| | | * @throws LDAPException In case of LDAP decoding exception. |
| | | * @throws ASN1Exception In case of ASN1 decoding exception. |
| | | * @throws DataFormatException In case of bad msg format. |
| | | */ |
| | | public AbstractOperation createOperation(InternalClientConnection conn) |
| | | throws LDAPException, ASN1Exception, DataFormatException |
| | | { |
| | | return createOperation(conn, dn); |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Create and Operation from the message using the provided DN. |
| | | * |
| | | * @param conn connection to use when creating the message. |
| | | * @param newDn the DN to use when creating the operation. |
| | | * @return the created Operation. |
| | | * @throws LDAPException In case of LDAP decoding exception. |
| | | * @throws ASN1Exception In case of ASN1 decoding exception. |
| | | * @throws DataFormatException In case of bad msg format. |
| | | */ |
| | | public abstract AbstractOperation createOperation( |
| | | InternalClientConnection conn, String newDn) |
| | | throws LDAPException, ASN1Exception, DataFormatException; |
| | | |
| | | /** |
| | | * Encode the common header for all the UpdateMsg. This uses the current |
| | | * protocol version. |
| | | * |
| | | * @param type the type of UpdateMsg to encode. |
| | | * @param additionalLength additional length needed to encode the remaining |
| | | * part of the UpdateMsg. |
| | | * @return a byte array containing the common header and enough space to |
| | | * encode the remaining bytes of the UpdateMsg as was specified |
| | | * by the additionalLength. |
| | | * (byte array length = common header length + additionalLength) |
| | | * @throws UnsupportedEncodingException if UTF-8 is not supported. |
| | | */ |
| | | public byte[] encodeHeader(byte type, int additionalLength) |
| | | throws UnsupportedEncodingException |
| | | { |
| | | byte[] byteDn = dn.getBytes("UTF-8"); |
| | | byte[] changeNumberByte = |
| | | this.getChangeNumber().toString().getBytes("UTF-8"); |
| | | byte[] byteEntryuuid = getUniqueId().getBytes("UTF-8"); |
| | | |
| | | /* The message header is stored in the form : |
| | | * <operation type><protocol version><changenumber><dn><entryuuid><assured> |
| | | * <assured mode> <safe data level> |
| | | * the length of result byte array is therefore : |
| | | * 1 + 1 + change number length + 1 + dn length + 1 + uuid length + 1 + 1 |
| | | * + 1 + 1 + additional_length |
| | | */ |
| | | int length = 8 + changeNumberByte.length + byteDn.length |
| | | + byteEntryuuid.length + additionalLength; |
| | | |
| | | byte[] encodedMsg = new byte[length]; |
| | | |
| | | /* put the type of the operation */ |
| | | encodedMsg[0] = type; |
| | | |
| | | /* put the protocol version */ |
| | | encodedMsg[1] = (byte)ProtocolVersion.getCurrentVersion(); |
| | | int pos = 2; |
| | | |
| | | /* Put the ChangeNumber */ |
| | | pos = addByteArray(changeNumberByte, encodedMsg, pos); |
| | | |
| | | /* Put the DN and a terminating 0 */ |
| | | pos = addByteArray(byteDn, encodedMsg, pos); |
| | | |
| | | /* Put the entry uuid and a terminating 0 */ |
| | | pos = addByteArray(byteEntryuuid, encodedMsg, pos); |
| | | |
| | | /* Put the assured flag */ |
| | | encodedMsg[pos++] = (assuredFlag ? (byte) 1 : 0); |
| | | |
| | | /* Put the assured mode */ |
| | | encodedMsg[pos++] = assuredMode.getValue(); |
| | | |
| | | /* Put the safe data level */ |
| | | encodedMsg[pos++] = safeDataLevel; |
| | | |
| | | return encodedMsg; |
| | | } |
| | | |
| | | /** |
| | | * {@inheritDoc} |
| | |
| | | { |
| | | return getBytes(); |
| | | } |
| | | |
| | | // Supported older protocol versions |
| | | switch (reqProtocolVersion) |
| | | else |
| | | { |
| | | case ProtocolVersion.REPLICATION_PROTOCOL_V1: |
| | | return getBytes_V1(); |
| | | default: |
| | | // Unsupported requested version |
| | | throw new UnsupportedEncodingException(getClass().getSimpleName() + |
| | | throw new UnsupportedEncodingException(getClass().getSimpleName() + |
| | | " PDU does not support requested protocol version serialization: " + |
| | | reqProtocolVersion); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * Get the byte array representation of this Message. This uses the version |
| | | * 1 of the replication protocol (used for compatibility purpose). |
| | | * |
| | | * @return The byte array representation of this Message. |
| | | * |
| | | * @throws UnsupportedEncodingException When the encoding of the message |
| | | * failed because the UTF-8 encoding is not supported. |
| | | */ |
| | | public abstract byte[] getBytes_V1() throws UnsupportedEncodingException; |
| | | |
| | | /** |
| | | * Encode the common header for all the UpdateMessage. This uses the version |
| | | * 1 of the replication protocol (used for compatibility purpose). |
| | | * |
| | | * @param type the type of UpdateMessage to encode. |
| | | * @param additionalLength additional length needed to encode the remaining |
| | | * part of the UpdateMessage. |
| | | * @return a byte array containing the common header and enough space to |
| | | * encode the remaining bytes of the UpdateMessage as was specified |
| | | * by the additionalLength. |
| | | * (byte array length = common header length + additionalLength) |
| | | * @throws UnsupportedEncodingException if UTF-8 is not supported. |
| | | */ |
| | | public byte[] encodeHeader_V1(byte type, int additionalLength) |
| | | throws UnsupportedEncodingException |
| | | { |
| | | byte[] byteDn = dn.getBytes("UTF-8"); |
| | | byte[] changeNumberByte = |
| | | this.getChangeNumber().toString().getBytes("UTF-8"); |
| | | byte[] byteEntryuuid = getUniqueId().getBytes("UTF-8"); |
| | | |
| | | /* The message header is stored in the form : |
| | | * <operation type>changenumber><dn><assured><entryuuid><change> |
| | | * the length of result byte array is therefore : |
| | | * 1 + change number length + 1 + dn length + 1 + 1 + |
| | | * uuid length + 1 + additional_length |
| | | */ |
| | | int length = 5 + changeNumberByte.length + byteDn.length |
| | | + byteEntryuuid.length + additionalLength; |
| | | |
| | | byte[] encodedMsg = new byte[length]; |
| | | |
| | | /* put the type of the operation */ |
| | | encodedMsg[0] = type; |
| | | int pos = 1; |
| | | |
| | | /* put the ChangeNumber */ |
| | | pos = addByteArray(changeNumberByte, encodedMsg, pos); |
| | | |
| | | /* put the assured information */ |
| | | encodedMsg[pos++] = (assuredFlag ? (byte) 1 : 0); |
| | | |
| | | /* put the DN and a terminating 0 */ |
| | | pos = addByteArray(byteDn, encodedMsg, pos); |
| | | |
| | | /* put the entry uuid and a terminating 0 */ |
| | | pos = addByteArray(byteEntryuuid, encodedMsg, pos); |
| | | |
| | | return encodedMsg; |
| | | } |
| | | |
| | | /** |
| | | * Decode the Header part of this Update Message, and check its type. |
| | | * |
| | | * @param types The allowed types of this Update Message. |
| | | * @param encodedMsg the encoded form of the UpdateMsg. |
| | | * @return the position at which the remaining part of the message starts. |
| | | * @throws DataFormatException if the encodedMsg does not contain a valid |
| | | * common header. |
| | | */ |
| | | public int decodeHeader(byte[] types, byte[] encodedMsg) |
| | | throws DataFormatException |
| | | { |
| | | /* The message header is stored in the form : |
| | | * <operation type><protocol version><changenumber><dn><entryuuid><assured> |
| | | * <assured mode> <safe data level> |
| | | */ |
| | | |
| | | /* first byte is the type */ |
| | | boolean foundMatchingType = false; |
| | | for (int i = 0; i < types.length; i++) |
| | | { |
| | | if (types[i] == encodedMsg[0]) |
| | | { |
| | | foundMatchingType = true; |
| | | break; |
| | | } |
| | | } |
| | | if (!foundMatchingType) |
| | | throw new DataFormatException("byte[] is not a valid update msg: " |
| | | + encodedMsg[0]); |
| | | |
| | | /* |
| | | * For older protocol version PDUs, decode the matching version header |
| | | * instead. |
| | | */ |
| | | if ((encodedMsg[0] == MSG_TYPE_ADD_V1) || |
| | | (encodedMsg[0] == MSG_TYPE_DELETE_V1) || |
| | | (encodedMsg[0] == MSG_TYPE_MODIFYDN_V1) || |
| | | (encodedMsg[0] == MSG_TYPE_MODIFY_V1)) |
| | | { |
| | | return decodeHeader_V1(encodedMsg); |
| | | } |
| | | |
| | | /* read the protocol version */ |
| | | protocolVersion = (short)encodedMsg[1]; |
| | | |
| | | try |
| | | { |
| | | /* Read the changeNumber */ |
| | | int pos = 2; |
| | | int length = getNextLength(encodedMsg, pos); |
| | | String changenumberStr = new String(encodedMsg, pos, length, "UTF-8"); |
| | | pos += length + 1; |
| | | changeNumber = new ChangeNumber(changenumberStr); |
| | | |
| | | /* Read the dn */ |
| | | length = getNextLength(encodedMsg, pos); |
| | | dn = new String(encodedMsg, pos, length, "UTF-8"); |
| | | pos += length + 1; |
| | | |
| | | /* Read the entryuuid */ |
| | | length = getNextLength(encodedMsg, pos); |
| | | uniqueId = new String(encodedMsg, pos, length, "UTF-8"); |
| | | pos += length + 1; |
| | | |
| | | /* Read the assured information */ |
| | | if (encodedMsg[pos++] == 1) |
| | | assuredFlag = true; |
| | | else |
| | | assuredFlag = false; |
| | | |
| | | /* Read the assured mode */ |
| | | assuredMode = AssuredMode.valueOf(encodedMsg[pos++]); |
| | | |
| | | /* Read the safe data level */ |
| | | safeDataLevel = encodedMsg[pos++]; |
| | | |
| | | return pos; |
| | | } catch (UnsupportedEncodingException e) |
| | | { |
| | | throw new DataFormatException("UTF-8 is not supported by this jvm."); |
| | | } catch (IllegalArgumentException e) |
| | | { |
| | | throw new DataFormatException(e.getMessage()); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * Decode the Header part of this Update Message, and check its type. This |
| | | * uses the version 1 of the replication protocol (used for compatibility |
| | | * purpose). |
| | | * |
| | | * @param encodedMsg the encoded form of the UpdateMessage. |
| | | * @return the position at which the remaining part of the message starts. |
| | | * @throws DataFormatException if the encodedMsg does not contain a valid |
| | | * common header. |
| | | */ |
| | | public int decodeHeader_V1(byte[] encodedMsg) |
| | | throws DataFormatException |
| | | { |
| | | if ((encodedMsg[0] != MSG_TYPE_ADD_V1) && |
| | | (encodedMsg[0] != MSG_TYPE_DELETE_V1) && |
| | | (encodedMsg[0] != MSG_TYPE_MODIFYDN_V1) && |
| | | (encodedMsg[0] != MSG_TYPE_MODIFY_V1)) |
| | | throw new DataFormatException("byte[] is not a valid update msg: expected" |
| | | + " a V1 PDU, received: " + encodedMsg[0]); |
| | | |
| | | // Force version to V1 (other new parameters take their default values |
| | | // (assured stuff...)) |
| | | protocolVersion = ProtocolVersion.REPLICATION_PROTOCOL_V1; |
| | | |
| | | try |
| | | { |
| | | /* read the changeNumber */ |
| | | int pos = 1; |
| | | int length = getNextLength(encodedMsg, pos); |
| | | String changenumberStr = new String(encodedMsg, pos, length, "UTF-8"); |
| | | pos += length + 1; |
| | | changeNumber = new ChangeNumber(changenumberStr); |
| | | |
| | | /* read the assured information */ |
| | | if (encodedMsg[pos++] == 1) |
| | | assuredFlag = true; |
| | | else |
| | | assuredFlag = false; |
| | | |
| | | /* read the dn */ |
| | | length = getNextLength(encodedMsg, pos); |
| | | dn = new String(encodedMsg, pos, length, "UTF-8"); |
| | | pos += length + 1; |
| | | |
| | | /* read the entryuuid */ |
| | | length = getNextLength(encodedMsg, pos); |
| | | uniqueId = new String(encodedMsg, pos, length, "UTF-8"); |
| | | pos += length + 1; |
| | | |
| | | return pos; |
| | | } catch (UnsupportedEncodingException e) |
| | | { |
| | | throw new DataFormatException("UTF-8 is not supported by this jvm."); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * Get the assured mode in this message. |
| | | * @return The assured mode in this message |
| | | */ |
| | |
| | | * |
| | | * @return The number of bytes used by this message. |
| | | */ |
| | | public abstract int size(); |
| | | public int size() |
| | | { |
| | | return 10 + payload.length; |
| | | } |
| | | |
| | | /** |
| | | * Encode the common header for all the UpdateMsg. This uses the current |
| | | * protocol version. |
| | | * |
| | | * @param type the type of UpdateMsg to encode. |
| | | * @param additionalLength additional length needed to encode the remaining |
| | | * part of the UpdateMsg. |
| | | * @return a byte array containing the common header and enough space to |
| | | * encode the remaining bytes of the UpdateMsg as was specified |
| | | * by the additionalLength. |
| | | * (byte array length = common header length + additionalLength) |
| | | * @throws UnsupportedEncodingException if UTF-8 is not supported. |
| | | */ |
| | | protected byte[] encodeHeader(byte type, int additionalLength) |
| | | throws UnsupportedEncodingException |
| | | { |
| | | byte[] changeNumberByte = |
| | | this.getChangeNumber().toString().getBytes("UTF-8"); |
| | | |
| | | /* The message header is stored in the form : |
| | | * <operation type><protocol version><changenumber><assured> |
| | | * <assured mode> <safe data level> |
| | | * the length of result byte array is therefore : |
| | | * 1 + 1 + change number length + 1 + 1 |
| | | * + 1 + 1 + additional_length |
| | | */ |
| | | int length = 6 + changeNumberByte.length + additionalLength; |
| | | |
| | | byte[] encodedMsg = new byte[length]; |
| | | |
| | | /* put the type of the operation */ |
| | | encodedMsg[0] = type; |
| | | |
| | | /* put the protocol version */ |
| | | encodedMsg[1] = (byte)ProtocolVersion.getCurrentVersion(); |
| | | int pos = 2; |
| | | |
| | | /* Put the ChangeNumber */ |
| | | pos = addByteArray(changeNumberByte, encodedMsg, pos); |
| | | |
| | | /* Put the assured flag */ |
| | | encodedMsg[pos++] = (assuredFlag ? (byte) 1 : 0); |
| | | |
| | | /* Put the assured mode */ |
| | | encodedMsg[pos++] = assuredMode.getValue(); |
| | | |
| | | /* Put the safe data level */ |
| | | encodedMsg[pos++] = safeDataLevel; |
| | | |
| | | return encodedMsg; |
| | | } |
| | | |
| | | /** |
| | | * Decode the Header part of this Update Message, and check its type. |
| | | * |
| | | * @param type The allowed type of this Update Message. |
| | | * @param encodedMsg the encoded form of the UpdateMsg. |
| | | * @return the position at which the remaining part of the message starts. |
| | | * @throws DataFormatException if the encodedMsg does not contain a valid |
| | | * common header. |
| | | */ |
| | | protected int decodeHeader(byte type, byte[] encodedMsg) |
| | | throws DataFormatException |
| | | { |
| | | /* The message header is stored in the form : |
| | | * <operation type><protocol version><changenumber><assured> |
| | | * <assured mode> <safe data level> |
| | | */ |
| | | if (!(type == encodedMsg[0])) |
| | | throw new DataFormatException("byte[] is not a valid update msg: " |
| | | + encodedMsg[0]); |
| | | |
| | | /* read the protocol version */ |
| | | protocolVersion = (short)encodedMsg[1]; |
| | | |
| | | try |
| | | { |
| | | /* Read the changeNumber */ |
| | | int pos = 2; |
| | | int length = getNextLength(encodedMsg, pos); |
| | | String changenumberStr = new String(encodedMsg, pos, length, "UTF-8"); |
| | | pos += length + 1; |
| | | changeNumber = new ChangeNumber(changenumberStr); |
| | | |
| | | /* Read the assured information */ |
| | | if (encodedMsg[pos++] == 1) |
| | | assuredFlag = true; |
| | | else |
| | | assuredFlag = false; |
| | | |
| | | /* Read the assured mode */ |
| | | assuredMode = AssuredMode.valueOf(encodedMsg[pos++]); |
| | | |
| | | /* Read the safe data level */ |
| | | safeDataLevel = encodedMsg[pos++]; |
| | | |
| | | return pos; |
| | | } catch (UnsupportedEncodingException e) |
| | | { |
| | | throw new DataFormatException("UTF-8 is not supported by this jvm."); |
| | | } catch (IllegalArgumentException e) |
| | | { |
| | | throw new DataFormatException(e.getMessage()); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * {@inheritDoc} |
| | | */ |
| | | @Override |
| | | public byte[] getBytes() throws UnsupportedEncodingException |
| | | { |
| | | /* Encode the header in a byte[] large enough to also contain the payload */ |
| | | byte [] resultByteArray = |
| | | encodeHeader(MSG_TYPE_GENERIC_UPDATE, payload.length); |
| | | |
| | | int pos = resultByteArray.length - payload.length; |
| | | |
| | | /* Add the payload */ |
| | | for (int i=0; i<payload.length; i++,pos++) |
| | | { |
| | | resultByteArray[pos] = payload[i]; |
| | | } |
| | | return resultByteArray; |
| | | } |
| | | |
| | | /** |
| | | * Get the payload of the UpdateMsg. |
| | | * |
| | | * @return The payload of the UpdateMsg. |
| | | */ |
| | | public byte[] getPayload() |
| | | { |
| | | return payload; |
| | | } |
| | | } |