Java Code Examples for com.taobao.tddl.dbsync.binlog.LogBuffer#getInt8()
The following examples show how to use
com.taobao.tddl.dbsync.binlog.LogBuffer#getInt8() .
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Example 1
| Source File: ExecuteLoadQueryLogEvent.java From canal-1.1.3 with Apache License 2.0 | 6 votes |
|
public ExecuteLoadQueryLogEvent(LogHeader header, LogBuffer buffer, FormatDescriptionLogEvent descriptionEvent)
throws IOException{
super(header, buffer, descriptionEvent);
buffer.position(descriptionEvent.commonHeaderLen + ELQ_FILE_ID_OFFSET);
fileId = buffer.getUint32(); // ELQ_FILE_ID_OFFSET
fnPosStart = (int) buffer.getUint32(); // ELQ_FN_POS_START_OFFSET
fnPosEnd = (int) buffer.getUint32(); // ELQ_FN_POS_END_OFFSET
dupHandling = buffer.getInt8(); // ELQ_DUP_HANDLING_OFFSET
final int len = query.length();
if (fnPosStart > len || fnPosEnd > len || dupHandling > LOAD_DUP_REPLACE) {
throw new IOException(String.format("Invalid ExecuteLoadQueryLogEvent: fn_pos_start=%d, "
+ "fn_pos_end=%d, dup_handling=%d", fnPosStart, fnPosEnd, dupHandling));
}
}
Example 2
| Source File: XaPrepareLogEvent.java From canal-1.1.3 with Apache License 2.0 | 6 votes |
|
public XaPrepareLogEvent(LogHeader header, LogBuffer buffer, FormatDescriptionLogEvent descriptionEvent){
super(header);
final int commonHeaderLen = descriptionEvent.getCommonHeaderLen();
final int postHeaderLen = descriptionEvent.getPostHeaderLen()[header.getType() - 1];
int offset = commonHeaderLen + postHeaderLen;
buffer.position(offset);
onePhase = (buffer.getInt8() == 0x00 ? false : true);
formatId = buffer.getInt32();
gtridLength = buffer.getInt32();
bqualLength = buffer.getInt32();
int MY_XIDDATASIZE = 128;
if (MY_XIDDATASIZE >= gtridLength + bqualLength && gtridLength >= 0 && gtridLength <= 64 && bqualLength >= 0
&& bqualLength <= 64) {
data = buffer.getData(gtridLength + bqualLength);
} else {
formatId = -1;
gtridLength = 0;
bqualLength = 0;
}
}
Example 3
| Source File: ExecuteLoadQueryLogEvent.java From canal with Apache License 2.0 | 6 votes |
|
public ExecuteLoadQueryLogEvent(LogHeader header, LogBuffer buffer, FormatDescriptionLogEvent descriptionEvent)
throws IOException{
super(header, buffer, descriptionEvent);
buffer.position(descriptionEvent.commonHeaderLen + ELQ_FILE_ID_OFFSET);
fileId = buffer.getUint32(); // ELQ_FILE_ID_OFFSET
fnPosStart = (int) buffer.getUint32(); // ELQ_FN_POS_START_OFFSET
fnPosEnd = (int) buffer.getUint32(); // ELQ_FN_POS_END_OFFSET
dupHandling = buffer.getInt8(); // ELQ_DUP_HANDLING_OFFSET
final int len = query.length();
if (fnPosStart > len || fnPosEnd > len || dupHandling > LOAD_DUP_REPLACE) {
throw new IOException(String.format("Invalid ExecuteLoadQueryLogEvent: fn_pos_start=%d, "
+ "fn_pos_end=%d, dup_handling=%d", fnPosStart, fnPosEnd, dupHandling));
}
}
Example 4
| Source File: XaPrepareLogEvent.java From canal with Apache License 2.0 | 6 votes |
|
public XaPrepareLogEvent(LogHeader header, LogBuffer buffer, FormatDescriptionLogEvent descriptionEvent){
super(header);
final int commonHeaderLen = descriptionEvent.getCommonHeaderLen();
final int postHeaderLen = descriptionEvent.getPostHeaderLen()[header.getType() - 1];
int offset = commonHeaderLen + postHeaderLen;
buffer.position(offset);
onePhase = (buffer.getInt8() == 0x00 ? false : true);
formatId = buffer.getInt32();
gtridLength = buffer.getInt32();
bqualLength = buffer.getInt32();
int MY_XIDDATASIZE = 128;
if (MY_XIDDATASIZE >= gtridLength + bqualLength && gtridLength >= 0 && gtridLength <= 64 && bqualLength >= 0
&& bqualLength <= 64) {
data = buffer.getData(gtridLength + bqualLength);
} else {
formatId = -1;
gtridLength = 0;
bqualLength = 0;
}
}
Example 5
| Source File: IntvarLogEvent.java From canal-1.1.3 with Apache License 2.0 | 5 votes |
|
public IntvarLogEvent(LogHeader header, LogBuffer buffer, FormatDescriptionLogEvent descriptionEvent){
super(header);
/* The Post-Header is empty. The Varible Data part begins immediately. */
buffer.position(descriptionEvent.commonHeaderLen + descriptionEvent.postHeaderLen[INTVAR_EVENT - 1]
+ I_TYPE_OFFSET);
type = buffer.getInt8(); // I_TYPE_OFFSET
value = buffer.getLong64(); // !uint8korr(buf + I_VAL_OFFSET);
}
Example 6
| Source File: IntvarLogEvent.java From canal with Apache License 2.0 | 5 votes |
|
public IntvarLogEvent(LogHeader header, LogBuffer buffer, FormatDescriptionLogEvent descriptionEvent){
super(header);
/* The Post-Header is empty. The Varible Data part begins immediately. */
buffer.position(descriptionEvent.commonHeaderLen + descriptionEvent.postHeaderLen[INTVAR_EVENT - 1]
+ I_TYPE_OFFSET);
type = buffer.getInt8(); // I_TYPE_OFFSET
value = buffer.getLong64(); // !uint8korr(buf + I_VAL_OFFSET);
}
Example 7
| Source File: UserVarLogEvent.java From canal-1.1.3 with Apache License 2.0 | 4 votes |
|
public UserVarLogEvent(LogHeader header, LogBuffer buffer, FormatDescriptionLogEvent descriptionEvent)
throws IOException{
super(header);
/* The Post-Header is empty. The Variable Data part begins immediately. */
buffer.position(descriptionEvent.commonHeaderLen + descriptionEvent.postHeaderLen[USER_VAR_EVENT - 1]);
final int nameLen = (int) buffer.getUint32();
name = buffer.getFixString(nameLen); // UV_NAME_LEN_SIZE
isNull = (0 != buffer.getInt8());
if (isNull) {
type = STRING_RESULT;
charsetNumber = 63; /* binary */
value = null;
} else {
type = buffer.getInt8(); // UV_VAL_IS_NULL
charsetNumber = (int) buffer.getUint32(); // buf + UV_VAL_TYPE_SIZE
final int valueLen = (int) buffer.getUint32(); // buf +
// UV_CHARSET_NUMBER_SIZE
final int limit = buffer.limit(); /* for restore */
buffer.limit(buffer.position() + valueLen);
/* @see User_var_log_event::print */
switch (type) {
case REAL_RESULT:
value = Double.valueOf(buffer.getDouble64()); // float8get
break;
case INT_RESULT:
if (valueLen == 8) value = Long.valueOf(buffer.getLong64()); // !uint8korr
else if (valueLen == 4) value = Long.valueOf(buffer.getUint32());
else throw new IOException("Error INT_RESULT length: " + valueLen);
break;
case DECIMAL_RESULT:
final int precision = buffer.getInt8();
final int scale = buffer.getInt8();
value = buffer.getDecimal(precision, scale); // bin2decimal
break;
case STRING_RESULT:
String charsetName = CharsetConversion.getJavaCharset(charsetNumber);
value = buffer.getFixString(valueLen, charsetName);
break;
case ROW_RESULT:
// this seems to be banned in MySQL altogether
throw new IOException("ROW_RESULT is unsupported");
default:
value = null;
break;
}
buffer.limit(limit);
}
}
Example 8
| Source File: LoadLogEvent.java From canal-1.1.3 with Apache License 2.0 | 4 votes |
|
/**
* @see mysql-5.1.60/sql/log_event.cc - Load_log_event::copy_log_event
*/
protected final void copyLogEvent(LogBuffer buffer, final int bodyOffset, FormatDescriptionLogEvent descriptionEvent) {
/* this is the beginning of the post-header */
buffer.position(descriptionEvent.commonHeaderLen + L_EXEC_TIME_OFFSET);
execTime = buffer.getUint32(); // L_EXEC_TIME_OFFSET
skipLines = (int) buffer.getUint32(); // L_SKIP_LINES_OFFSET
final int tableNameLen = buffer.getUint8(); // L_TBL_LEN_OFFSET
final int dbLen = buffer.getUint8(); // L_DB_LEN_OFFSET
numFields = (int) buffer.getUint32(); // L_NUM_FIELDS_OFFSET
buffer.position(bodyOffset);
/*
* Sql_ex.init() on success returns the pointer to the first byte after
* the sql_ex structure, which is the start of field lengths array.
*/
if (header.type != LOAD_EVENT /* use_new_format */) {
/*
* The code below assumes that buf will not disappear from under our
* feet during the lifetime of the event. This assumption holds true
* in the slave thread if the log is in new format, but is not the
* case when we have old format because we will be reusing net
* buffer to read the actual file before we write out the
* Create_file event.
*/
fieldTerm = buffer.getString();
enclosed = buffer.getString();
lineTerm = buffer.getString();
lineStart = buffer.getString();
escaped = buffer.getString();
optFlags = buffer.getInt8();
emptyFlags = 0;
} else {
fieldTerm = buffer.getFixString(1);
enclosed = buffer.getFixString(1);
lineTerm = buffer.getFixString(1);
lineStart = buffer.getFixString(1);
escaped = buffer.getFixString(1);
optFlags = buffer.getUint8();
emptyFlags = buffer.getUint8();
if ((emptyFlags & FIELD_TERM_EMPTY) != 0) fieldTerm = null;
if ((emptyFlags & ENCLOSED_EMPTY) != 0) enclosed = null;
if ((emptyFlags & LINE_TERM_EMPTY) != 0) lineTerm = null;
if ((emptyFlags & LINE_START_EMPTY) != 0) lineStart = null;
if ((emptyFlags & ESCAPED_EMPTY) != 0) escaped = null;
}
final int fieldLenPos = buffer.position();
buffer.forward(numFields);
fields = new String[numFields];
for (int i = 0; i < numFields; i++) {
final int fieldLen = buffer.getUint8(fieldLenPos + i);
fields[i] = buffer.getFixString(fieldLen + 1);
}
table = buffer.getFixString(tableNameLen + 1);
db = buffer.getFixString(dbLen + 1);
// null termination is accomplished by the caller
final int from = buffer.position();
final int end = from + buffer.limit();
int found = from;
for (; (found < end) && buffer.getInt8(found) != '\0'; found++)
/* empty loop */;
fname = buffer.getString(found);
buffer.forward(1); // The + 1 is for \0 terminating fname
}
Example 9
| Source File: UserVarLogEvent.java From canal with Apache License 2.0 | 4 votes |
|
public UserVarLogEvent(LogHeader header, LogBuffer buffer, FormatDescriptionLogEvent descriptionEvent)
throws IOException{
super(header);
/* The Post-Header is empty. The Variable Data part begins immediately. */
buffer.position(descriptionEvent.commonHeaderLen + descriptionEvent.postHeaderLen[USER_VAR_EVENT - 1]);
final int nameLen = (int) buffer.getUint32();
name = buffer.getFixString(nameLen); // UV_NAME_LEN_SIZE
isNull = (0 != buffer.getInt8());
if (isNull) {
type = STRING_RESULT;
charsetNumber = 63; /* binary */
value = null;
} else {
type = buffer.getInt8(); // UV_VAL_IS_NULL
charsetNumber = (int) buffer.getUint32(); // buf + UV_VAL_TYPE_SIZE
final int valueLen = (int) buffer.getUint32(); // buf +
// UV_CHARSET_NUMBER_SIZE
final int limit = buffer.limit(); /* for restore */
buffer.limit(buffer.position() + valueLen);
/* @see User_var_log_event::print */
switch (type) {
case REAL_RESULT:
value = Double.valueOf(buffer.getDouble64()); // float8get
break;
case INT_RESULT:
if (valueLen == 8) value = Long.valueOf(buffer.getLong64()); // !uint8korr
else if (valueLen == 4) value = Long.valueOf(buffer.getUint32());
else throw new IOException("Error INT_RESULT length: " + valueLen);
break;
case DECIMAL_RESULT:
final int precision = buffer.getInt8();
final int scale = buffer.getInt8();
value = buffer.getDecimal(precision, scale); // bin2decimal
break;
case STRING_RESULT:
String charsetName = CharsetConversion.getJavaCharset(charsetNumber);
value = buffer.getFixString(valueLen, charsetName);
break;
case ROW_RESULT:
// this seems to be banned in MySQL altogether
throw new IOException("ROW_RESULT is unsupported");
default:
value = null;
break;
}
buffer.limit(limit);
}
}
Example 10
| Source File: LoadLogEvent.java From canal with Apache License 2.0 | 4 votes |
|
/**
* @see mysql-5.1.60/sql/log_event.cc - Load_log_event::copy_log_event
*/
protected final void copyLogEvent(LogBuffer buffer, final int bodyOffset, FormatDescriptionLogEvent descriptionEvent) {
/* this is the beginning of the post-header */
buffer.position(descriptionEvent.commonHeaderLen + L_EXEC_TIME_OFFSET);
execTime = buffer.getUint32(); // L_EXEC_TIME_OFFSET
skipLines = (int) buffer.getUint32(); // L_SKIP_LINES_OFFSET
final int tableNameLen = buffer.getUint8(); // L_TBL_LEN_OFFSET
final int dbLen = buffer.getUint8(); // L_DB_LEN_OFFSET
numFields = (int) buffer.getUint32(); // L_NUM_FIELDS_OFFSET
buffer.position(bodyOffset);
/*
* Sql_ex.init() on success returns the pointer to the first byte after
* the sql_ex structure, which is the start of field lengths array.
*/
if (header.type != LOAD_EVENT /* use_new_format */) {
/*
* The code below assumes that buf will not disappear from under our
* feet during the lifetime of the event. This assumption holds true
* in the slave thread if the log is in new format, but is not the
* case when we have old format because we will be reusing net
* buffer to read the actual file before we write out the
* Create_file event.
*/
fieldTerm = buffer.getString();
enclosed = buffer.getString();
lineTerm = buffer.getString();
lineStart = buffer.getString();
escaped = buffer.getString();
optFlags = buffer.getInt8();
emptyFlags = 0;
} else {
fieldTerm = buffer.getFixString(1);
enclosed = buffer.getFixString(1);
lineTerm = buffer.getFixString(1);
lineStart = buffer.getFixString(1);
escaped = buffer.getFixString(1);
optFlags = buffer.getUint8();
emptyFlags = buffer.getUint8();
if ((emptyFlags & FIELD_TERM_EMPTY) != 0) fieldTerm = null;
if ((emptyFlags & ENCLOSED_EMPTY) != 0) enclosed = null;
if ((emptyFlags & LINE_TERM_EMPTY) != 0) lineTerm = null;
if ((emptyFlags & LINE_START_EMPTY) != 0) lineStart = null;
if ((emptyFlags & ESCAPED_EMPTY) != 0) escaped = null;
}
final int fieldLenPos = buffer.position();
buffer.forward(numFields);
fields = new String[numFields];
for (int i = 0; i < numFields; i++) {
final int fieldLen = buffer.getUint8(fieldLenPos + i);
fields[i] = buffer.getFixString(fieldLen + 1);
}
table = buffer.getFixString(tableNameLen + 1);
db = buffer.getFixString(dbLen + 1);
// null termination is accomplished by the caller
final int from = buffer.position();
final int end = from + buffer.limit();
int found = from;
for (; (found < end) && buffer.getInt8(found) != '\0'; found++)
/* empty loop */;
fname = buffer.getString(found);
buffer.forward(1); // The + 1 is for \0 terminating fname
}
