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0002375: LoadFilter with SQL-Script support
currently only SQL-PreparedStatement with COLUMN/OLD_COLUMN variables support
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163 changes: 163 additions & 0 deletions
163
symmetric-core/src/main/java/org/jumpmind/symmetric/load/SQLDatabaseWriterFilter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,163 @@ | ||
| package org.jumpmind.symmetric.load; | ||
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| 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.*; | ||
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| import java.util.*; | ||
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| import static org.apache.commons.lang.StringUtils.isNotBlank; | ||
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| /** | ||
| * User: Markus Schulz <msc@antzsystem.de> | ||
| * Date: 24.08.15 | ||
| * Time: 10:53 | ||
| */ | ||
| public class SQLDatabaseWriterFilter extends DynamicDatabaseWriterFilter { | ||
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| protected static final ISqlRowMapper<Boolean> lookupColumnRowMapper = new ISqlRowMapper<Boolean>() { | ||
| @Override | ||
| public Boolean mapRow(Row row) { | ||
| return Boolean.TRUE.equals(row.values().iterator().next()); | ||
| } | ||
| }; | ||
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| private static final String OLD_ = "OLD_"; | ||
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| public SQLDatabaseWriterFilter(ISymmetricEngine engine, Map<String, List<LoadFilter>> loadFilters) { | ||
| super(engine, loadFilters); | ||
| } | ||
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| @Override | ||
| protected boolean processLoadFilters(DataContext context, Table table, CsvData data, Exception error, | ||
| WriteMethod writeMethod, List<LoadFilter> loadFiltersForTable) { | ||
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| 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); | ||
| } | ||
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| if (values != null && values.size() > 0) { | ||
| writeRow = values.get(0); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| catch (Exception ex) { | ||
| processError(currentFilter, table, ex); | ||
| } | ||
| return writeRow; | ||
| } | ||
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| 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)); | ||
| } | ||
| } | ||
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| 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; | ||
| } | ||
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| @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); | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| protected String doTokenReplacementOnSql(DataContext context, String sql) { | ||
| if (isNotBlank(sql)) { | ||
| Data csvData = (Data) context.get(Constants.DATA_CONTEXT_CURRENT_CSV_DATA); | ||
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| if (csvData != null && csvData.getTriggerHistory() != null) { | ||
| sql = FormatUtils | ||
| .replaceToken(sql, "sourceCatalogName", csvData.getTriggerHistory().getSourceCatalogName(), true); | ||
| } | ||
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| if (csvData != null && csvData.getTriggerHistory() != null) { | ||
| sql = FormatUtils | ||
| .replaceToken(sql, "sourceSchemaName", csvData.getTriggerHistory().getSourceSchemaName(), true); | ||
| } | ||
| } | ||
| return sql; | ||
| } | ||
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| 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); | ||
| } | ||
| } | ||
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| } |
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