/
SQLDatabaseWriterFilter.java
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/
SQLDatabaseWriterFilter.java
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package org.jumpmind.symmetric.load;
import bsh.TargetError;
import org.jumpmind.db.model.Table;
import org.jumpmind.db.sql.*;
import org.jumpmind.symmetric.*;
import org.jumpmind.symmetric.common.Constants;
import org.jumpmind.symmetric.io.data.*;
import org.jumpmind.symmetric.model.*;
import org.jumpmind.util.*;
import java.util.*;
import static org.apache.commons.lang.StringUtils.isNotBlank;
/**
* User: Markus Schulz <msc@antzsystem.de>
* Date: 24.08.15
* Time: 10:53
*/
public class SQLDatabaseWriterFilter extends DynamicDatabaseWriterFilter {
protected static final ISqlRowMapper<Boolean> lookupColumnRowMapper = new ISqlRowMapper<Boolean>() {
@Override
public Boolean mapRow(Row row) {
return Boolean.TRUE.equals(row.values().iterator().next());
}
};
private static final String OLD_ = "OLD_";
public SQLDatabaseWriterFilter(ISymmetricEngine engine, Map<String, List<LoadFilter>> loadFilters) {
super(engine, loadFilters);
}
@Override
protected boolean processLoadFilters(DataContext context, Table table, CsvData data, Exception error,
WriteMethod writeMethod, List<LoadFilter> loadFiltersForTable) {
boolean writeRow = true;
LoadFilter currentFilter = null;
List<Boolean> values = null;
try {
LinkedCaseInsensitiveMap<Object> namedParams = null;
for (LoadFilter filter : loadFiltersForTable) {
currentFilter = filter;
values = null;
if (filter.isFilterOnDelete() && data.getDataEventType().equals(DataEventType.DELETE)
|| filter.isFilterOnInsert() && data.getDataEventType().equals(DataEventType.INSERT)
|| filter.isFilterOnUpdate() && data.getDataEventType().equals(DataEventType.UPDATE)) {
String sql = null;
if (writeMethod.equals(WriteMethod.BEFORE_WRITE) && filter.getBeforeWriteScript() != null) {
sql = doTokenReplacementOnSql(context, filter.getBeforeWriteScript());
}
else if (writeMethod.equals(WriteMethod.AFTER_WRITE) && filter.getAfterWriteScript() != null) {
sql = doTokenReplacementOnSql(context, filter.getAfterWriteScript());
}
else if (writeMethod.equals(WriteMethod.HANDLE_ERROR) && filter.getHandleErrorScript() != null) {
sql = doTokenReplacementOnSql(context, filter.getHandleErrorScript());
}
if (sql != null && !sql.trim().isEmpty()) {
if (namedParams == null) {
namedParams = getVariablesMap(table, data);
}
ISqlTransaction transaction = context.findTransaction();
values = transaction.query(sql, lookupColumnRowMapper, namedParams);
}
if (values != null && values.size() > 0) {
writeRow = values.get(0);
}
}
}
}
catch (Exception ex) {
processError(currentFilter, table, ex);
}
return writeRow;
}
private LinkedCaseInsensitiveMap<Object> getVariablesMap(Table table, CsvData data) {
LinkedCaseInsensitiveMap<Object> namedParams = new LinkedCaseInsensitiveMap<Object>();
if (data != null) {
Map<String, String> sourceValues = data.toColumnNameValuePairs(table.getColumnNames(), CsvData.ROW_DATA);
if (sourceValues.size() > 0) {
for (String columnName : sourceValues.keySet()) {
namedParams.put(columnName, sourceValues.get(columnName));
namedParams.put(columnName.toUpperCase(), sourceValues.get(columnName));
}
}
else {
Map<String, String> pkValues = data.toColumnNameValuePairs(
table.getPrimaryKeyColumnNames(), CsvData.PK_DATA);
for (String columnName : pkValues.keySet()) {
namedParams.put(columnName, pkValues.get(columnName));
namedParams.put(columnName.toUpperCase(), pkValues.get(columnName));
}
}
Map<String, String> oldValues = data.toColumnNameValuePairs(table.getColumnNames(),
CsvData.OLD_DATA);
for (String columnName : oldValues.keySet()) {
namedParams.put(OLD_ + columnName, sourceValues.get(columnName));
namedParams.put(OLD_ + columnName.toUpperCase(), sourceValues.get(columnName));
}
}
return namedParams;
}
@Override
protected void executeScripts(DataContext context, String key, Set<String> scripts, boolean isFailOnError) {
if (scripts != null) {
try {
ISqlTransaction transaction = context.findTransaction();
for (String script : scripts) {
String sql = doTokenReplacementOnSql(context, script);
transaction.query(sql, lookupColumnRowMapper, null);
}
}
catch (Exception e) {
if (isFailOnError) {
throw (RuntimeException) e;
}
else {
log.error("Failed while executing sql script", e);
}
}
}
}
protected String doTokenReplacementOnSql(DataContext context, String sql) {
if (isNotBlank(sql)) {
Data csvData = (Data) context.get(Constants.DATA_CONTEXT_CURRENT_CSV_DATA);
if (csvData != null && csvData.getTriggerHistory() != null) {
sql = FormatUtils
.replaceToken(sql, "sourceCatalogName", csvData.getTriggerHistory().getSourceCatalogName(), true);
}
if (csvData != null && csvData.getTriggerHistory() != null) {
sql = FormatUtils
.replaceToken(sql, "sourceSchemaName", csvData.getTriggerHistory().getSourceSchemaName(), true);
}
}
return sql;
}
protected void processError(LoadFilter currentFilter, Table table, Throwable ex) {
if (ex instanceof TargetError) {
ex = ((TargetError) ex).getTarget();
}
String formattedMessage = String
.format("Error executing sql script for load filter %s on table %s. The error was: %s",
new Object[]{currentFilter != null ? currentFilter.getLoadFilterId() : "N/A", table.getName(),
ex.getMessage()});
log.error(formattedMessage);
if (currentFilter.isFailOnError()) {
throw new SymmetricException(formattedMessage, ex);
}
}
}