Java Code Examples for com.taobao.tddl.dbsync.binlog.LogBuffer#getString()
The following examples show how to use
com.taobao.tddl.dbsync.binlog.LogBuffer#getString() .
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Example 1
| Source File: IncidentLogEvent.java From canal-1.1.3 with Apache License 2.0 | 6 votes |
|
public IncidentLogEvent(LogHeader header, LogBuffer buffer, FormatDescriptionLogEvent descriptionEvent){
super(header);
final int commonHeaderLen = descriptionEvent.commonHeaderLen;
final int postHeaderLen = descriptionEvent.postHeaderLen[header.type - 1];
buffer.position(commonHeaderLen);
final int incidentNumber = buffer.getUint16();
if (incidentNumber >= INCIDENT_COUNT || incidentNumber <= INCIDENT_NONE) {
// If the incident is not recognized, this binlog event is
// invalid. If we set incident_number to INCIDENT_NONE, the
// invalidity will be detected by is_valid().
incident = INCIDENT_NONE;
message = null;
return;
}
incident = incidentNumber;
buffer.position(commonHeaderLen + postHeaderLen);
message = buffer.getString();
}
Example 2
| Source File: IncidentLogEvent.java From canal with Apache License 2.0 | 6 votes |
|
public IncidentLogEvent(LogHeader header, LogBuffer buffer, FormatDescriptionLogEvent descriptionEvent){
super(header);
final int commonHeaderLen = descriptionEvent.commonHeaderLen;
final int postHeaderLen = descriptionEvent.postHeaderLen[header.type - 1];
buffer.position(commonHeaderLen);
final int incidentNumber = buffer.getUint16();
if (incidentNumber >= INCIDENT_COUNT || incidentNumber <= INCIDENT_NONE) {
// If the incident is not recognized, this binlog event is
// invalid. If we set incident_number to INCIDENT_NONE, the
// invalidity will be detected by is_valid().
incident = INCIDENT_NONE;
message = null;
return;
}
incident = incidentNumber;
buffer.position(commonHeaderLen + postHeaderLen);
message = buffer.getString();
}
Example 3
| 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 4
| 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
}
