/
DefaultDatabaseWriter.java
1128 lines (1078 loc) · 54 KB
/
DefaultDatabaseWriter.java
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/**
* Licensed to JumpMind Inc under one or more contributor
* license agreements. See the NOTICE file distributed
* with this work for additional information regarding
* copyright ownership. JumpMind Inc licenses this file
* to you under the GNU General Public License, version 3.0 (GPLv3)
* (the "License"); you may not use this file except in compliance
* with the License.
*
* You should have received a copy of the GNU General Public License,
* version 3.0 (GPLv3) along with this library; if not, see
* <http://www.gnu.org/licenses/>.
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.jumpmind.symmetric.io.data.writer;
import java.io.IOException;
import java.io.StringReader;
import java.lang.reflect.Method;
import java.sql.SQLException;
import java.sql.Types;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.StringUtils;
import org.jumpmind.db.io.DatabaseXmlUtil;
import org.jumpmind.db.model.Column;
import org.jumpmind.db.model.Database;
import org.jumpmind.db.model.Table;
import org.jumpmind.db.model.TypeMap;
import org.jumpmind.db.platform.DatabaseInfo;
import org.jumpmind.db.platform.DatabaseNamesConstants;
import org.jumpmind.db.platform.IDatabasePlatform;
import org.jumpmind.db.sql.DataTruncationException;
import org.jumpmind.db.sql.DmlStatement;
import org.jumpmind.db.sql.DmlStatement.DmlType;
import org.jumpmind.db.sql.ISqlRowMapper;
import org.jumpmind.db.sql.ISqlTemplate;
import org.jumpmind.db.sql.ISqlTransaction;
import org.jumpmind.db.sql.LogSqlBuilder;
import org.jumpmind.db.sql.Row;
import org.jumpmind.db.sql.SqlException;
import org.jumpmind.db.sql.SqlScriptReader;
import org.jumpmind.symmetric.io.data.Batch;
import org.jumpmind.symmetric.io.data.CsvData;
import org.jumpmind.symmetric.io.data.CsvUtils;
import org.jumpmind.symmetric.io.data.DataContext;
import org.jumpmind.symmetric.io.data.DataEventType;
import org.jumpmind.symmetric.io.data.writer.Conflict.DetectConflict;
import org.jumpmind.symmetric.io.data.writer.Conflict.DetectExpressionKey;
import org.jumpmind.util.CollectionUtils;
import org.jumpmind.util.FormatUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class DefaultDatabaseWriter extends AbstractDatabaseWriter {
private final static Logger log = LoggerFactory.getLogger(DefaultDatabaseWriter.class);
public static final String CUR_DATA = "DatabaseWriter.CurData";
private final String ATTRIBUTE_CHANNEL_ID_RELOAD = "reload";
private final String TRUNCATE_PATTERN = "^(truncate)( table)?.*";
private final String DELETE_PATTERN = "^(delete from).*";
protected IDatabasePlatform platform;
protected ISqlTransaction transaction;
protected DmlStatement currentDmlStatement;
protected Object[] currentDmlValues;
protected LogSqlBuilder logSqlBuilder = new LogSqlBuilder();
protected Boolean isCteExpression;
public DefaultDatabaseWriter(IDatabasePlatform platform) {
this(platform, null, null);
}
public DefaultDatabaseWriter(IDatabasePlatform platform, DatabaseWriterSettings settings) {
this(platform, null, settings);
}
public DefaultDatabaseWriter(IDatabasePlatform platform,
IDatabaseWriterConflictResolver conflictResolver, DatabaseWriterSettings settings) {
super(conflictResolver, settings);
this.platform = platform;
isRequiresSavePointsInTransaction = platform.getDatabaseInfo().isRequiresSavePointsInTransaction();
}
public IDatabasePlatform getPlatform() {
return platform;
}
public IDatabasePlatform getPlatform(Table table) {
return platform;
}
public IDatabasePlatform getPlatform(String table) {
return platform;
}
public ISqlTransaction getTransaction() {
return transaction;
}
public ISqlTransaction getTransaction(Table table) {
return transaction;
}
public ISqlTransaction getTransaction(String table) {
return transaction;
}
@Override
public void open(DataContext context) {
super.open(context);
transaction = platform.getSqlTemplate().startSqlTransaction();
}
@Override
public boolean start(Table table) {
currentDmlStatement = null;
boolean process = super.start(table);
if (process && targetTable != null) {
allowInsertIntoAutoIncrementColumns(true, targetTable);
}
return process;
}
@Override
public void end(Table table) {
super.end(table);
if (transaction.isAllowInsertIntoAutoIncrement()) {
// SQL Server using JDBC Batch loading requires a flush before turning off the identity insert.
transaction.flush();
}
allowInsertIntoAutoIncrementColumns(false, targetTable);
}
@Override
public void end(Batch batch, boolean inError) {
currentDmlStatement = null;
if (inError) {
allowInsertIntoAutoIncrementColumns(false, targetTable);
}
super.end(batch, inError);
}
@Override
public void close() {
super.close();
if (transaction != null) {
transaction.close();
}
}
@Override
protected void commit(boolean earlyCommit) {
if (transaction != null) {
try {
statistics.get(batch).startTimer(DataWriterStatisticConstants.LOADMILLIS);
transaction.commit();
if (!earlyCommit) {
notifyFiltersBatchCommitted();
} else {
notifyFiltersEarlyCommit();
}
} finally {
statistics.get(batch).stopTimer(DataWriterStatisticConstants.LOADMILLIS);
}
}
super.commit(earlyCommit);
}
protected void commit(boolean earlyCommit, ISqlTransaction newTransaction) {
if (transaction != null) {
try {
statistics.get(batch).startTimer(DataWriterStatisticConstants.LOADMILLIS);
newTransaction.commit();
if (!earlyCommit) {
notifyFiltersBatchCommitted();
} else {
notifyFiltersEarlyCommit();
}
} finally {
statistics.get(batch).stopTimer(DataWriterStatisticConstants.LOADMILLIS);
}
}
super.commit(earlyCommit);
}
@Override
protected void rollback() {
if (transaction != null) {
try {
statistics.get(batch).startTimer(DataWriterStatisticConstants.LOADMILLIS);
transaction.rollback();
notifyFiltersBatchRolledback();
} finally {
statistics.get(batch).stopTimer(DataWriterStatisticConstants.LOADMILLIS);
}
}
super.rollback();
}
protected boolean isCteExpression() {
if (isCteExpression == null) {
isCteExpression = getPlatform().getDdlBuilder().getDatabaseInfo().getCteExpression() != null;
}
return isCteExpression;
}
protected void replaceCteExpression() {
if (isCteExpression()) {
currentDmlStatement.updateCteExpression(batch.getSourceNodeId());
}
}
@Override
protected LoadStatus insert(CsvData data) {
try {
if (isRequiresSavePointsInTransaction && conflictResolver != null && conflictResolver.isIgnoreRow(this, data)) {
statistics.get(batch).increment(DataWriterStatisticConstants.IGNOREROWCOUNT);
currentDmlStatement = null;
return LoadStatus.SUCCESS;
}
statistics.get(batch).startTimer(DataWriterStatisticConstants.LOADMILLIS);
if (requireNewStatement(DmlType.INSERT, data, false, true, null)) {
lastUseConflictDetection = true;
currentDmlStatement = getPlatform().createDmlStatement(DmlType.INSERT, targetTable, writerSettings.getTextColumnExpression());
replaceCteExpression();
if (log.isDebugEnabled()) {
log.debug("Preparing dml: " + currentDmlStatement.getSql());
}
prepare();
}
boolean isFindAndThrowException = false;
try {
Conflict conflict = writerSettings.pickConflict(targetTable, batch);
String[] values = (String[]) ArrayUtils.addAll(getRowData(data, CsvData.ROW_DATA),
currentDmlStatement.getLookupKeyData(getLookupDataMap(data, conflict)));
long count = execute(data, values);
statistics.get(batch).increment(DataWriterStatisticConstants.INSERTCOUNT, count);
statistics.get(batch).incrementTableStats(targetTable.getName(), DataEventType.INSERT.getCode(), count);
if (count > 0) {
return LoadStatus.SUCCESS;
} else {
isFindAndThrowException = true;
findAndThrowInsertException(data, values);
return LoadStatus.CONFLICT;
}
} catch (SqlException ex) {
if (isRequiresSavePointsInTransaction && !isFindAndThrowException) {
context.put(TRANSACTION_ABORTED, true);
}
if (getPlatform().getSqlTemplate().isUniqueKeyViolation(ex)) {
context.put(CONFLICT_ERROR, ex);
context.put(CUR_DATA, getCurData(getTransaction()));
context.setLastError(ex);
return LoadStatus.CONFLICT;
} else {
throw ex;
}
}
} catch (RuntimeException ex) {
logFailureDetails(ex, data, true);
throw ex;
} finally {
statistics.get(batch).stopTimer(DataWriterStatisticConstants.LOADMILLIS);
}
}
private void findAndThrowInsertException(CsvData data, String[] values) throws SqlException {
if (isRequiresSavePointsInTransaction) {
try {
getTransaction().execute("savepoint sym");
getTransaction().prepare(currentDmlStatement.getSql(false));
currentDmlValues = getPlatform().getObjectValues(batch.getBinaryEncoding(), values,
currentDmlStatement.getMetaData(), false, writerSettings.isFitToColumn());
getTransaction().addRow(data, currentDmlValues, currentDmlStatement.getTypes());
} catch (SqlException e) {
getTransaction().execute("rollback to savepoint sym");
throw e;
} finally {
getTransaction().execute("release savepoint sym");
getTransaction().prepare(currentDmlStatement.getSql(true));
}
}
}
@Override
protected LoadStatus delete(CsvData data, boolean useConflictDetection) {
try {
if (isRequiresSavePointsInTransaction && conflictResolver != null && conflictResolver.isIgnoreRow(this, data)) {
statistics.get(batch).increment(DataWriterStatisticConstants.IGNOREROWCOUNT);
currentDmlStatement = null;
return LoadStatus.SUCCESS;
}
statistics.get(batch).startTimer(DataWriterStatisticConstants.LOADMILLIS);
Conflict conflict = writerSettings.pickConflict(targetTable, batch);
Map<String, String> lookupDataMap = null;
if (requireNewStatement(DmlType.DELETE, data, useConflictDetection, useConflictDetection,
conflict.getDetectType())) {
lastUseConflictDetection = useConflictDetection;
List<Column> lookupKeys = null;
if (!useConflictDetection) {
lookupKeys = targetTable.getPrimaryKeyColumnsAsList();
} else {
switch (conflict.getDetectType()) {
case USE_OLD_DATA:
case USE_CHANGED_DATA:
if (data.contains(CsvData.OLD_DATA)) {
lookupKeys = targetTable.getColumnsAsList();
} else {
lookupKeys = targetTable.getPrimaryKeyColumnsAsList();
}
break;
case USE_VERSION:
case USE_TIMESTAMP:
List<Column> lookupColumns = new ArrayList<Column>();
Column versionColumn = targetTable.getColumnWithName(conflict
.getDetectExpression());
if (versionColumn != null) {
lookupColumns.add(versionColumn);
} else {
log.error(
"Could not find the timestamp/version column with the name {} on table {}. Defaulting to using primary keys for the lookup.",
conflict.getDetectExpression(), targetTable.getName());
}
Column[] pks = targetTable.getPrimaryKeyColumns();
for (Column column : pks) {
// make sure all of the PK keys are in the list
// only once and are always at the end of the
// list
lookupColumns.remove(column);
lookupColumns.add(column);
}
lookupKeys = lookupColumns;
break;
case USE_PK_DATA:
default:
lookupKeys = targetTable.getPrimaryKeyColumnsAsList();
break;
}
}
if (lookupKeys == null || lookupKeys.size() == 0) {
lookupKeys = targetTable.getColumnsAsList();
}
int lookupKeyCountBeforeColumnRemoval = lookupKeys.size();
Iterator<Column> it = lookupKeys.iterator();
while (it.hasNext()) {
Column col = it.next();
if ((getPlatform().isLob(col.getMappedTypeCode()) && data.isNoBinaryOldData())
|| !getPlatform().canColumnBeUsedInWhereClause(col)) {
it.remove();
}
}
if (lookupKeys.size() == 0) {
String msg = "There are no keys defined for "
+ targetTable.getFullyQualifiedTableName()
+ ". Cannot build a delete statement. ";
if (lookupKeyCountBeforeColumnRemoval > 0) {
msg += "The only keys defined are binary and they have been removed.";
}
throw new IllegalStateException(msg);
}
lookupDataMap = getLookupDataMap(data, conflict);
boolean[] nullKeyValues = new boolean[lookupKeys.size()];
for (int i = 0; i < lookupKeys.size(); i++) {
Column column = lookupKeys.get(i);
nullKeyValues[i] = !column.isRequired()
&& lookupDataMap.get(column.getName()) == null;
}
currentDmlStatement = getPlatform().createDmlStatement(DmlType.DELETE,
targetTable.getCatalog(), targetTable.getSchema(), targetTable.getName(),
lookupKeys.toArray(new Column[lookupKeys.size()]), null, nullKeyValues, writerSettings.getTextColumnExpression());
replaceCteExpression();
if (log.isDebugEnabled()) {
log.debug("Preparing dml: " + currentDmlStatement.getSql());
}
prepare();
}
try {
lookupDataMap = lookupDataMap == null ? getLookupDataMap(data, conflict) : lookupDataMap;
long count = execute(data, currentDmlStatement.getLookupKeyData(lookupDataMap));
statistics.get(batch).increment(DataWriterStatisticConstants.DELETECOUNT, count);
statistics.get(batch).incrementTableStats(targetTable.getName(), DataEventType.DELETE.getCode(), count);
if (count > 0) {
return LoadStatus.SUCCESS;
} else {
context.put(CUR_DATA, null); // since a delete conflicted, there's no row to delete, so no cur data.
return LoadStatus.CONFLICT;
}
} catch (RuntimeException ex) {
if (isRequiresSavePointsInTransaction && ex instanceof SqlException) {
context.put(TRANSACTION_ABORTED, true);
}
if (getPlatform().getSqlTemplate().isForeignKeyChildExistsViolation(ex)) {
context.put(CONFLICT_ERROR, ex);
context.put(CUR_DATA, null); // since a delete conflicted, there's no row to delete, so no cur data.
context.setLastError(ex);
return LoadStatus.CONFLICT;
} else {
throw ex;
}
}
} catch (SqlException ex) {
logFailureDetails(ex, data, true);
throw ex;
} finally {
statistics.get(batch).stopTimer(DataWriterStatisticConstants.LOADMILLIS);
}
}
@Override
protected LoadStatus update(CsvData data, boolean applyChangesOnly, boolean useConflictDetection) {
try {
if (isRequiresSavePointsInTransaction && conflictResolver != null && conflictResolver.isIgnoreRow(this, data)) {
statistics.get(batch).increment(DataWriterStatisticConstants.IGNOREROWCOUNT);
currentDmlStatement = null;
return LoadStatus.SUCCESS;
}
statistics.get(batch).startTimer(DataWriterStatisticConstants.LOADMILLIS);
String[] rowData = getRowData(data, CsvData.ROW_DATA);
String[] oldData = getRowData(data, CsvData.OLD_DATA);
ArrayList<String> changedColumnValueList = new ArrayList<>();
ArrayList<Column> changedColumnsList = new ArrayList<>();
for (int i = 0; i < targetTable.getColumnCount(); i++) {
Column column = targetTable.getColumn(i);
if (column != null) {
if (doesColumnNeedUpdated(i, column, data, rowData, oldData, applyChangesOnly)) {
changedColumnsList.add(column);
changedColumnValueList.add(rowData[i]);
}
}
}
if (changedColumnsList.size() > 0) {
Map<String, String> lookupDataMap = null;
Conflict conflict = writerSettings.pickConflict(targetTable, batch);
if (requireNewStatement(DmlType.UPDATE, data, applyChangesOnly,
useConflictDetection, conflict.getDetectType())) {
lastApplyChangesOnly = applyChangesOnly;
lastUseConflictDetection = useConflictDetection;
List<Column> lookupKeys = null;
if (!useConflictDetection) {
lookupKeys = targetTable.getPrimaryKeyColumnsAsList();
} else {
switch (conflict.getDetectType()) {
case USE_CHANGED_DATA:
if (data.contains(CsvData.OLD_DATA)) {
ArrayList<Column> lookupColumns = new ArrayList<Column>(
changedColumnsList);
Column[] pks = targetTable.getPrimaryKeyColumns();
for (Column column : pks) {
// make sure all of the PK keys are in the
// list only once and are always at the end
// of the list
lookupColumns.remove(column);
lookupColumns.add(column);
}
removeExcludedColumns(conflict, lookupColumns);
lookupKeys = lookupColumns;
} else {
lookupKeys = targetTable.getPrimaryKeyColumnsAsList();
}
break;
case USE_OLD_DATA:
if (data.contains(CsvData.OLD_DATA)) {
lookupKeys = targetTable.getColumnsAsList();
removeExcludedColumns(conflict, lookupKeys);
} else {
lookupKeys = targetTable.getPrimaryKeyColumnsAsList();
}
break;
case USE_VERSION:
case USE_TIMESTAMP:
ArrayList<Column> lookupColumns = new ArrayList<Column>();
Column versionColumn = targetTable.getColumnWithName(conflict
.getDetectExpression());
if (versionColumn != null) {
lookupColumns.add(versionColumn);
} else {
log.error(
"Could not find the timestamp/version column with the name {} on table {}. Defaulting to using primary keys for the lookup.",
conflict.getDetectExpression(), targetTable.getName());
}
Column[] pks = targetTable.getPrimaryKeyColumns();
for (Column column : pks) {
// make sure all of the PK keys are in the
// list only once and are always at the end
// of the list
lookupColumns.remove(column);
lookupColumns.add(column);
}
lookupKeys = lookupColumns;
break;
case USE_PK_DATA:
default:
lookupKeys = targetTable.getPrimaryKeyColumnsAsList();
break;
}
}
if (lookupKeys == null || lookupKeys.size() == 0) {
lookupKeys = targetTable.getColumnsAsList();
}
int lookupKeyCountBeforeColumnRemoval = lookupKeys.size();
Iterator<Column> it = lookupKeys.iterator();
while (it.hasNext()) {
Column col = it.next();
if ((getPlatform().isLob(col.getMappedTypeCode()) && data.isNoBinaryOldData())
|| !getPlatform().canColumnBeUsedInWhereClause(col)) {
it.remove();
}
}
if (lookupKeys.size() == 0) {
String msg = "There are no keys defined for "
+ targetTable.getFullyQualifiedTableName()
+ ". Cannot build an update statement. ";
if (lookupKeyCountBeforeColumnRemoval > 0) {
msg += "The only keys defined are binary and they have been removed.";
}
throw new IllegalStateException(msg);
}
lookupDataMap = getLookupDataMap(data, conflict);
boolean[] nullKeyValues = new boolean[lookupKeys.size()];
for (int i = 0; i < lookupKeys.size(); i++) {
Column column = lookupKeys.get(i);
// the isRequired is a bit of a hack. This nullKeyValues
// should really be checking against the object values
// because some null values get translated into empty
// strings
nullKeyValues[i] = !column.isRequired()
&& lookupDataMap.get(column.getName()) == null;
}
currentDmlStatement = getPlatform().createDmlStatement(DmlType.UPDATE,
targetTable.getCatalog(), targetTable.getSchema(),
targetTable.getName(),
lookupKeys.toArray(new Column[lookupKeys.size()]),
changedColumnsList.toArray(new Column[changedColumnsList.size()]),
nullKeyValues, writerSettings.getTextColumnExpression());
replaceCteExpression();
if (log.isDebugEnabled()) {
log.debug("Preparing dml: " + currentDmlStatement.getSql());
}
prepare();
}
rowData = (String[]) changedColumnValueList
.toArray(new String[changedColumnValueList.size()]);
lookupDataMap = lookupDataMap == null ? getLookupDataMap(data, conflict) : lookupDataMap;
String[] values = (String[]) ArrayUtils.addAll(rowData,
currentDmlStatement.getLookupKeyData(lookupDataMap));
try {
long count = execute(data, values);
statistics.get(batch).increment(DataWriterStatisticConstants.UPDATECOUNT, count);
statistics.get(batch).incrementTableStats(targetTable.getName(), DataEventType.UPDATE.getCode(), count);
if (count > 0) {
return LoadStatus.SUCCESS;
} else {
context.put(CUR_DATA, getCurData(getTransaction()));
return LoadStatus.CONFLICT;
}
} catch (SqlException ex) {
if (isRequiresSavePointsInTransaction) {
context.put(TRANSACTION_ABORTED, true);
}
if ((getPlatform().getSqlTemplate().isUniqueKeyViolation(ex) || getPlatform().getSqlTemplate().isForeignKeyChildExistsViolation(ex))) {
context.put(CONFLICT_ERROR, ex);
context.put(CUR_DATA, getCurData(getTransaction()));
context.setLastError(ex);
return LoadStatus.CONFLICT;
} else {
throw ex;
}
}
} else {
if (log.isDebugEnabled()) {
log.debug("Not running update for table {} with pk of {}. There was no change to apply",
targetTable.getFullyQualifiedTableName(), data.getCsvData(CsvData.PK_DATA));
}
// There was no change to apply
return LoadStatus.SUCCESS;
}
} catch (RuntimeException ex) {
logFailureDetails(ex, data, true);
throw ex;
} finally {
statistics.get(batch).stopTimer(DataWriterStatisticConstants.LOADMILLIS);
}
}
@Override
protected boolean create(CsvData data) {
String xml = null;
try {
// Placeholder to ensure target platform and transaction is returned. SYM_* tables are not created through this process.
String tempNonSymTable = "NON_SYM_TABLE";
getTransaction(tempNonSymTable).commit();
statistics.get(batch).startTimer(DataWriterStatisticConstants.LOADMILLIS);
xml = data.getParsedData(CsvData.ROW_DATA)[0];
log.info("About to create table using the following definition: {}", xml);
StringReader reader = new StringReader(xml);
Database db = DatabaseXmlUtil.read(reader, false);
if (writerSettings.isCreateTableAlterCaseToMatchDatabaseDefault()) {
getPlatform().alterCaseToMatchDatabaseDefaultCase(db);
}
getPlatform(tempNonSymTable).makePlatformSpecific(db);
if (writerSettings.isAlterTable()) {
getPlatform(tempNonSymTable).alterDatabase(db, !writerSettings.isCreateTableFailOnError(), writerSettings.getAlterDatabaseInterceptors());
} else {
getPlatform(tempNonSymTable).createDatabase(db, writerSettings.isCreateTableDropFirst(), !writerSettings.isCreateTableFailOnError());
}
getPlatform().resetCachedTableModel();
statistics.get(batch).increment(DataWriterStatisticConstants.CREATECOUNT);
return true;
} catch (RuntimeException ex) {
log.error("Failed to alter table using the following xml: " + xml, ex); // This is not logged upstream
throw ex;
} finally {
statistics.get(batch).stopTimer(DataWriterStatisticConstants.LOADMILLIS);
}
}
@Override
protected boolean sql(CsvData data) {
try {
statistics.get(batch).startTimer(DataWriterStatisticConstants.LOADMILLIS);
String[] parsedData = data.getParsedData(CsvData.ROW_DATA);
String script = parsedData[0];
boolean captureChanges = parsedData.length > 1 && parsedData[1].equals("1");
List<String> sqlStatements = getSqlStatements(script);
long count = 0;
for (String sql : sqlStatements) {
ISqlTransaction newTransaction = null;
try {
sql = preprocessSqlStatement(sql);
if (captureChanges) {
newTransaction = getPlatform().getSqlTemplate().startSqlTransaction();
if (sql.matches(TRUNCATE_PATTERN) && getPlatform().getName().equals(DatabaseNamesConstants.DB2)) {
commit(true, newTransaction);
}
newTransaction.prepare(sql);
if (log.isDebugEnabled()) {
log.debug("About to run: {}", sql);
}
count += newTransaction.prepareAndExecute(sql);
if (log.isDebugEnabled()) {
log.debug("{} rows updated when running: {}", count, sql);
}
} else {
if (sql.matches(TRUNCATE_PATTERN) && getPlatform().getName().equals(DatabaseNamesConstants.DB2)) {
commit(true);
}
prepare(sql, data);
if (log.isDebugEnabled()) {
log.debug("About to run: {}", sql);
}
count += prepareAndExecute(sql, data);
if (log.isDebugEnabled()) {
log.debug("{} rows updated when running: {}", count, sql);
}
}
} catch (Error ex) {
log.error("Failed to run the following sql: {}", sql);
if (newTransaction != null) {
newTransaction.rollback();
}
if (!writerSettings.isIgnoreSqlDataEventFailures()) {
throw ex;
}
} catch (RuntimeException ex) {
log.error("Failed to run the following sql: {}", sql);
if (newTransaction != null) {
newTransaction.rollback();
}
if (!writerSettings.isIgnoreSqlDataEventFailures()) {
throw ex;
}
} finally {
if (newTransaction != null) {
newTransaction.close();
}
}
}
statistics.get(batch).increment(DataWriterStatisticConstants.SQLCOUNT);
statistics.get(batch).increment(DataWriterStatisticConstants.SQLROWSAFFECTEDCOUNT,
count);
return true;
} finally {
statistics.get(batch).stopTimer(DataWriterStatisticConstants.LOADMILLIS);
}
}
protected boolean requireNewStatement(DmlType currentType, CsvData data,
boolean applyChangesOnly, boolean useConflictDetection,
Conflict.DetectConflict detectType) {
boolean requiresNew = currentDmlStatement == null || lastData == null
|| currentDmlStatement.getDmlType() != currentType
|| lastData.getDataEventType() != data.getDataEventType()
|| lastApplyChangesOnly != applyChangesOnly
|| lastUseConflictDetection != useConflictDetection;
if (!requiresNew && currentType == DmlType.UPDATE) {
String currentChanges = Arrays.toString(data.getChangedDataIndicators());
String lastChanges = Arrays.toString(lastData.getChangedDataIndicators());
requiresNew = !currentChanges.equals(lastChanges);
}
if (!requiresNew) {
requiresNew |= containsNullLookupKeyDataSinceLastStatement(currentType, data,
detectType);
}
return requiresNew;
}
protected boolean containsNullLookupKeyDataSinceLastStatement(DmlType currentType,
CsvData data, DetectConflict detectType) {
boolean foundNullValueChange = false;
if (currentType == DmlType.UPDATE || currentType == DmlType.DELETE) {
if (detectType != null
&& (detectType == DetectConflict.USE_CHANGED_DATA || detectType == DetectConflict.USE_OLD_DATA)) {
String[] lastOldData = lastData.getParsedData(CsvData.OLD_DATA);
String[] newOldData = data.getParsedData(CsvData.OLD_DATA);
if (lastOldData != null && newOldData != null) {
for (int i = 0; i < lastOldData.length && i < newOldData.length; i++) {
String lastValue = lastOldData[i];
String value = newOldData[i];
if ((lastValue != null && value == null)
|| (value != null && lastValue == null)) {
foundNullValueChange = true;
}
}
}
} else {
String[] lastpkData = lastData.getParsedData(CsvData.PK_DATA);
String[] newpkData = data.getParsedData(CsvData.PK_DATA);
if (lastpkData != null && newpkData != null) {
for (int i = 0; i < lastpkData.length && i < newpkData.length; i++) {
String lastValue = lastpkData[i];
String value = newpkData[i];
if ((lastValue != null && value == null)
|| (value != null && lastValue == null)) {
foundNullValueChange = true;
}
}
}
}
}
return foundNullValueChange;
}
@Override
protected void targetTableWasChangedByFilter(Table oldTargetTable) {
// allow for auto increment columns to be inserted into if appropriate
if (oldTargetTable != null) {
allowInsertIntoAutoIncrementColumns(false, oldTargetTable);
}
allowInsertIntoAutoIncrementColumns(true, targetTable);
}
private void removeExcludedColumns(Conflict conflict,
List<Column> lookupColumns) {
String excludedString = conflict.getDetectExpressionValue(
DetectExpressionKey.EXCLUDED_COLUMN_NAMES);
if (!StringUtils.isBlank(excludedString)) {
String excludedColumns[] = excludedString.split(",");
if (excludedColumns.length > 0) {
Iterator<Column> iter = lookupColumns.iterator();
while (iter.hasNext()) {
Column column = iter.next();
for (String excludedColumn : excludedColumns) {
if (excludedColumn.trim().equalsIgnoreCase(column.getName())) {
iter.remove();
break;
}
}
}
}
}
}
@Override
protected void logFailureDetails(Throwable e, CsvData data, boolean logLastDmlDetails) {
StringBuilder failureMessage = new StringBuilder();
failureMessage.append("Failed to process ");
failureMessage.append(data.getDataEventType().toString().toLowerCase());
failureMessage.append(" event in batch ");
failureMessage.append(batch.getNodeBatchId());
failureMessage.append(" on channel '");
failureMessage.append(batch.getChannelId());
failureMessage.append("'.\n");
if (logLastDmlDetails && currentDmlStatement != null) {
boolean shouldLogRawSql = true;
if (writerSettings.isLogSqlParamsOnError()) {
failureMessage.append("Failed sql was: ");
String dynamicSQL = logSqlBuilder.buildDynamicSqlForLog(currentDmlStatement.getSql(), currentDmlValues, currentDmlStatement.getTypes());
failureMessage.append(dynamicSQL);
failureMessage.append("\n");
shouldLogRawSql = !dynamicSQL.equals(currentDmlStatement.getSql());
}
if (shouldLogRawSql) {
failureMessage.append("Failed raw sql was: ");
failureMessage.append(currentDmlStatement.getSql());
}
failureMessage.append("\n");
}
if (logLastDmlDetails && currentDmlValues != null && currentDmlStatement != null) {
if (writerSettings.isLogSqlParamsOnError()) {
failureMessage.append("Failed sql parameters: ");
failureMessage.append(StringUtils.abbreviate("[" + dmlValuesToString(currentDmlValues, currentDmlStatement.getTypes()) + "]",
CsvData.MAX_DATA_SIZE_TO_PRINT_TO_LOG));
failureMessage.append("\n");
}
failureMessage.append("Failed sql parameters types: ");
failureMessage.append("[" + TypeMap.getJdbcTypeDescriptions(currentDmlStatement.getTypes()) + "]");
failureMessage.append("\n");
}
if (logLastDmlDetails && e instanceof SqlException && e.getCause() instanceof SQLException) {
SQLException se = (SQLException) e.getCause();
failureMessage.append("Failed sql state and code: ").append(se.getSQLState());
failureMessage.append(" (").append(se.getErrorCode()).append(")");
failureMessage.append("\n");
}
if (e instanceof DataTruncationException) {
logDataTruncation(data, failureMessage);
}
if (writerSettings.isLogSqlParamsOnError()) {
data.writeCsvDataDetails(failureMessage);
}
log.info(failureMessage.toString(), e);
}
protected void logDataTruncation(CsvData data, StringBuilder failureMessage) {
String[] rowData = data.getParsedData(CsvData.ROW_DATA);
int rowIndex = 0;
for (Column col : targetTable.getColumns()) {
if (col.getJdbcTypeCode() == Types.VARCHAR) { // CHAR
if (rowData[rowIndex] != null && rowData[rowIndex].length() > Integer.parseInt(col.getSize())) {
failureMessage.append("Failed truncation column: ");
failureMessage.append(col.getName());
failureMessage.append(" with size of: ");
failureMessage.append(Integer.parseInt(col.getSize()));
failureMessage.append(" failed to load data: ");
failureMessage.append(rowData[rowIndex]);
failureMessage.append("\n");
}
}
rowIndex++;
}
}
protected String dmlValuesToString(Object[] dmlValues, int[] types) {
StringBuilder buff = new StringBuilder();
if (dmlValues == null || dmlValues.length == 0) {
return "";
}
LogSqlBuilder logSqlBuilder = new LogSqlBuilder();
for (int i = 0; i < dmlValues.length; i++) {
int type = i < types.length ? types[i] : -9999;
buff.append(logSqlBuilder.formatValue(dmlValues[i], type));
if (i < dmlValues.length - 1) {
buff.append(", ");
}
}
return buff.toString();
}
@Override
protected void bindVariables(Map<String, Object> variables) {
super.bindVariables(variables);
ISqlTemplate template = getPlatform().getSqlTemplate();
Class<?> templateClass = template.getClass();
if (templateClass.getSimpleName().equals("JdbcSqlTemplate")) {
try {
Method method = templateClass.getMethod("getDataSource");
variables.put("DATASOURCE", method.invoke(template));
} catch (Exception e) {
log.warn("Had trouble looking up the datasource used by the sql template", e);
}
}
}
protected List<String> getSqlStatements(String script) {
List<String> sqlStatements = new ArrayList<String>();
SqlScriptReader scriptReader = new SqlScriptReader(new StringReader(script));
try {
String sql = scriptReader.readSqlStatement();
while (sql != null) {
if (StringUtils.startsWithIgnoreCase(sql, "delimiter")) {
if (log.isDebugEnabled()) {
log.debug("Found delimiter line: " + sql);
}
String delimiter = StringUtils.trimToNull(sql.substring("delimiter".length()));
if (delimiter != null) {
scriptReader.setDelimiter(delimiter);
}
} else {
sqlStatements.add(sql);
}
sql = scriptReader.readSqlStatement();
}
return sqlStatements;
} finally {
try {
if (scriptReader != null) {
scriptReader.close();
}
} catch (IOException e) {
}
}
}
protected String preprocessSqlStatement(String sql) {
Table table = targetTable != null ? targetTable : sourceTable;
sql = FormatUtils.replace("nodeId", batch.getTargetNodeId(), sql);
if (table != null) {
sql = FormatUtils.replace("catalogName", quoteString(table.getCatalog()), sql);
sql = FormatUtils.replace("schemaName", quoteString(table.getSchema()), sql);
sql = FormatUtils.replace("tableName", quoteString(table.getName()), sql);
DatabaseInfo info = getPlatform().getDatabaseInfo();
String quote = getPlatform().getDdlBuilder().isDelimitedIdentifierModeOn() ? info.getDelimiterToken() : "";
sql = FormatUtils.replace("fullTableName", table.getQualifiedTableName(quote, info.getCatalogSeparator(), info.getSchemaSeparator()),
sql);
final String old38CompatibilityTable = "sym_node";
if (ATTRIBUTE_CHANNEL_ID_RELOAD.equals(batch.getChannelId()) && sql.matches(TRUNCATE_PATTERN)
&& !table.getNameLowerCase().equals(old38CompatibilityTable)) {
sql = getPlatform().getTruncateSql(table);
} else if (ATTRIBUTE_CHANNEL_ID_RELOAD.equals(batch.getChannelId()) && sql.matches(DELETE_PATTERN)
&& !sql.toUpperCase().contains("WHERE") && !table.getNameLowerCase().equals(old38CompatibilityTable)) {
sql = getPlatform().getDeleteSql(table);
}
}
sql = getPlatform().scrubSql(sql);
sql = FormatUtils.replace("sourceNodeId", (String) context.get("sourceNodeId"), sql);
sql = FormatUtils.replace("sourceNodeExternalId",
(String) context.get("sourceNodeExternalId"), sql);
sql = FormatUtils.replace("sourceNodeGroupId", (String) context.get("sourceNodeGroupId"),
sql);
sql = FormatUtils.replace("targetNodeId", (String) context.get("targetNodeId"), sql);
sql = FormatUtils.replace("targetNodeExternalId",
(String) context.get("targetNodeExternalId"), sql);
sql = FormatUtils.replace("targetNodeGroupId", (String) context.get("targetNodeGroupId"),
sql);
return sql;
}
protected String quoteString(String string) {
if (!StringUtils.isEmpty(string)) {
String quote = getPlatform().getDdlBuilder().isDelimitedIdentifierModeOn()
? getPlatform()
.getDatabaseInfo().getDelimiterToken()
: "";
return String.format("%s%s%s", quote, string, quote);
} else {
return string;
}
}
protected boolean doesColumnNeedUpdated(int targetColumnIndex, Column column, CsvData data, String[] rowData, String[] oldData,
boolean applyChangesOnly) {
boolean needsUpdated = true;
if (!getPlatform().getDatabaseInfo().isAutoIncrementUpdateAllowed() && column.isAutoIncrement()) {
needsUpdated = false;
} else if (oldData != null && applyChangesOnly) {
/*
* Old data isn't captured for some lob fields. When both values are null, then we always have to update because we don't know if the lob field was
* previously null.
*/
boolean containsEmptyLobColumn = getPlatform().isLob(column.getMappedTypeCode())
&& StringUtils.isBlank(oldData[targetColumnIndex]);
needsUpdated = !StringUtils.equals(rowData[targetColumnIndex], oldData[targetColumnIndex])
|| data.getParsedData(CsvData.OLD_DATA) == null
|| containsEmptyLobColumn;
if (containsEmptyLobColumn) {
// indicate that we are considering the column to be changed
updateChangedDataIndicator(data, column, true);
}
} else {
/*
* This is in support of creating update statements that don't use the keys in the set portion of the update statement. </p> In oracle (and maybe
* not only in oracle) if there is no index on child table on FK column and update is performing on PK on master table, table lock is acquired on
* child table. Table lock is taken not in exclusive mode, but lock contentions is possible.
*/
needsUpdated = !column.isPrimaryKey()
|| !StringUtils.equals(rowData[targetColumnIndex], getPkDataFor(data, column));
/*
* A primary key change isn't indicated in the change data indicators when there is no old data. Need to update it manually in that case.
*/
updateChangedDataIndicator(data, column, needsUpdated);
}
return needsUpdated;
}
protected void updateChangedDataIndicator(CsvData data, Column column, boolean needsUpdated) {
boolean[] changeIndicators = data.getChangedDataIndicators();
int index = sourceTable.getColumnIndex(column.getName());
if (index != -1 && index < changeIndicators.length) {
changeIndicators[index] = needsUpdated;
} else if (index == -1) {