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SqlAnywhereTriggerTemplate.java
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SqlAnywhereTriggerTemplate.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.db.sqlanywhere;
import java.sql.Types;
import java.util.HashMap;
import org.apache.commons.lang3.NotImplementedException;
import org.jumpmind.db.model.Column;
import org.jumpmind.db.model.ColumnTypes;
import org.jumpmind.db.model.Table;
import org.jumpmind.symmetric.db.AbstractTriggerTemplate;
import org.jumpmind.symmetric.db.ISymmetricDialect;
import org.jumpmind.symmetric.io.data.DataEventType;
import org.jumpmind.symmetric.model.Channel;
import org.jumpmind.symmetric.model.Trigger;
import org.jumpmind.symmetric.model.TriggerHistory;
import org.jumpmind.util.FormatUtils;
public class SqlAnywhereTriggerTemplate extends AbstractTriggerTemplate {
public SqlAnywhereTriggerTemplate(ISymmetricDialect symmetricDialect) {
super(symmetricDialect);
emptyColumnTemplate = "''";
stringColumnTemplate = "case when $(tableAlias).\"$(columnName)\" is null then '' else '\"' + replace(replace($(tableAlias).\"$(columnName)\",'\\','\\\\'),'\"','\\\"') + '\"' end";
numberColumnTemplate = "case when $(tableAlias).\"$(columnName)\" is null then '' else ('\"' + cast($(tableAlias).\"$(columnName)\" as varchar) + '\"') end";
datetimeColumnTemplate = "case when $(tableAlias).\"$(columnName)\" is null then '' else ('\"' + replace(convert(varchar,$(tableAlias).\"$(columnName)\",21),'T',' ') + '\"') end";
clobColumnTemplate = "case when $(origTableAlias).\"$(columnName)\" is null then '' else '\"' + replace(replace(cast($(origTableAlias).\"$(columnName)\" as varchar(16384)),'\\','\\\\'),'\"','\\\"') + '\"' end";
blobColumnTemplate = "case when $(origTableAlias).\"$(columnName)\" is null then '' else '\"' + base64_encode($(origTableAlias).\"$(columnName)\") + '\"' end";
binaryColumnTemplate = "case when $(tableAlias).\"$(columnName)\" is null then '' else '\"' + base64_encode($(tableAlias).\"$(columnName)\") + '\"' end";
booleanColumnTemplate = "case when $(tableAlias).\"$(columnName)\" is null then '' when $(tableAlias).\"$(columnName)\" = 1 then '\"1\"' else '\"0\"' end";
triggerConcatCharacter = "+";
newTriggerValue = "inserted";
oldTriggerValue = "deleted";
oldColumnPrefix = "";
newColumnPrefix = "";
sqlTemplates = new HashMap<String, String>();
sqlTemplates.put("insertTriggerTemplate",
"create trigger $(triggerName) on $(schemaName)$(tableName) for insert as "
+
" begin "
+
" declare @DataRow varchar(16384) "
+
" $(declareNewKeyVariables) "
+
" declare @ChannelId varchar(20) "
+
" $(custom_before_insert_text) \n" +
" if ($(syncOnIncomingBatchCondition)) begin "
+
" declare DataCursor cursor for "
+
" $(if:containsBlobClobColumns) "
+
" select $(columns) $(newKeyNames), $(channelExpression) from inserted inner join $(schemaName)$(tableName) $(origTableAlias) on $(tableNewPrimaryKeyJoin) where $(syncOnInsertCondition)"
+
" $(else:containsBlobClobColumns) "
+
" select $(columns) $(newKeyNames), $(channelExpression) from inserted where $(syncOnInsertCondition) "
+
" $(end:containsBlobClobColumns) "
+
" open DataCursor "
+
" fetch next DataCursor into @DataRow $(newKeyVariables), @ChannelId "
+
" while @@FETCH_STATUS = 0 begin "
+
" insert into $(defaultCatalog)$(defaultSchema)$(prefixName)_data (table_name, event_type, trigger_hist_id, row_data, channel_id, transaction_id, source_node_id, external_data, create_time) "
+
" values('$(targetTableName)','I', $(triggerHistoryId), @DataRow, @ChannelId, $(txIdExpression), $(defaultCatalog)$(defaultSchema)$(prefixName)_node_disabled(0), $(externalSelect), getdate()) "
+
" fetch next DataCursor into @DataRow $(newKeyVariables), @ChannelId "
+
" end "
+
" close DataCursor "
+
" deallocate DataCursor "
+
" end "
+
" $(custom_on_insert_text) "
+
" end ");
sqlTemplates.put("updateTriggerTemplate",
"create trigger $(triggerName) on $(schemaName)$(tableName) for update as "
+
" begin "
+
" declare @DataRow varchar(16384) "
+
" declare @OldPk varchar(2000) "
+
" declare @OldDataRow varchar(16384) "
+
" declare @ChannelId varchar(20) "
+
" $(declareOldKeyVariables) "
+
" $(declareNewKeyVariables) "
+
" $(custom_before_update_text) \n" +
" if ($(syncOnIncomingBatchCondition)) begin "
+
" declare DataCursor cursor for "
+
" $(if:containsBlobClobColumns) "
+
" select $(columns), $(oldKeys), $(oldColumns) $(oldKeyNames) $(newKeyNames), $(channelExpression) from inserted inner join $(schemaName)$(tableName) $(origTableAlias) on $(tableNewPrimaryKeyJoin) inner join deleted on $(oldNewPrimaryKeyJoin) where $(syncOnUpdateCondition)"
+
" $(else:containsBlobClobColumns) "
+
" select $(columns), $(oldKeys), $(oldColumns) $(oldKeyNames) $(newKeyNames), $(channelExpression) from inserted inner join deleted on $(oldNewPrimaryKeyJoin) where $(syncOnUpdateCondition) "
+
" $(end:containsBlobClobColumns) "
+
" open DataCursor "
+
" fetch next DataCursor into @DataRow, @OldPk, @OldDataRow $(oldKeyVariables) $(newKeyVariables), @ChannelId "
+
" while @@FETCH_STATUS = 0 begin "
+
" insert into $(defaultCatalog)$(defaultSchema)$(prefixName)_data (table_name, event_type, trigger_hist_id, row_data, pk_data, old_data, channel_id, transaction_id, source_node_id, external_data, create_time) "
+
" values('$(targetTableName)','U', $(triggerHistoryId), @DataRow, @OldPk, @OldDataRow, @ChannelId, $(txIdExpression), $(defaultCatalog)$(defaultSchema)$(prefixName)_node_disabled(0), $(externalSelect), getdate())"
+
" fetch next DataCursor into @DataRow, @OldPk, @OldDataRow $(oldKeyVariables) $(newKeyVariables), @ChannelId "
+
" end "
+
" close DataCursor "
+
" deallocate DataCursor "
+
" end "
+
" $(custom_on_update_text) "
+
" end ");
sqlTemplates.put("deleteTriggerTemplate",
"create trigger $(triggerName) on $(schemaName)$(tableName) for delete as "
+
" begin "
+
" declare @OldPk varchar(2000) "
+
" declare @OldDataRow varchar(16384) "
+
" declare @ChannelId varchar(20) "
+
" $(declareOldKeyVariables) "
+
" $(custom_before_delete_text) \n" +
" if ($(syncOnIncomingBatchCondition)) begin "
+
" declare DataCursor cursor for "
+
" select $(oldKeys), $(oldColumns) $(oldKeyNames), $(channelExpression) from deleted where $(syncOnDeleteCondition) "
+
" open DataCursor "
+
" fetch next DataCursor into @OldPk, @OldDataRow $(oldKeyVariables), @ChannelId "
+
" while @@FETCH_STATUS = 0 begin "
+
" insert into $(defaultCatalog)$(defaultSchema)$(prefixName)_data (table_name, event_type, trigger_hist_id, pk_data, old_data, channel_id, transaction_id, source_node_id, external_data, create_time) "
+
" values('$(targetTableName)','D', $(triggerHistoryId), @OldPk, @OldDataRow, @ChannelId, $(txIdExpression), $(defaultCatalog)$(defaultSchema)$(prefixName)_node_disabled(0), $(externalSelect), getdate())"
+
" fetch next DataCursor into @OldPk,@OldDataRow $(oldKeyVariables), @ChannelId "
+
" end "
+
" close DataCursor "
+
" deallocate DataCursor "
+
" end "
+
" $(custom_on_delete_text) "
+
" end ");
sqlTemplates.put("initialLoadSqlTemplate",
"select $(columns) from $(schemaName)$(tableName) t where $(whereClause) ");
}
@Override
protected String replaceTemplateVariables(DataEventType dml, Trigger trigger,
TriggerHistory history, Channel channel, String tablePrefix, Table originalTable, Table table,
String defaultCatalog, String defaultSchema, String ddl) {
ddl = super.replaceTemplateVariables(dml, trigger, history, channel, tablePrefix, originalTable, table,
defaultCatalog, defaultSchema, ddl);
Column[] columns = table.getPrimaryKeyColumns();
ddl = FormatUtils.replace("declareOldKeyVariables",
buildKeyVariablesDeclare(columns, "old"), ddl);
ddl = FormatUtils.replace("declareNewKeyVariables",
buildKeyVariablesDeclare(columns, "new"), ddl);
return ddl;
}
@Override
protected String buildKeyVariablesDeclare(Column[] columns, String prefix) {
String text = "";
for (int i = 0; i < columns.length; i++) {
text += "declare @" + prefix + "pk" + i + " ";
switch (columns[i].getMappedTypeCode()) {
case Types.TINYINT:
case Types.SMALLINT:
case Types.INTEGER:
case Types.BIGINT:
text += "bigint\n";
break;
case Types.NUMERIC:
case Types.DECIMAL:
text += "decimal\n";
break;
case Types.FLOAT:
case Types.REAL:
case Types.DOUBLE:
text += "float\n";
break;
case Types.CHAR:
case Types.VARCHAR:
case ColumnTypes.NVARCHAR:
case ColumnTypes.LONGNVARCHAR:
case Types.LONGVARCHAR:
text += "varchar(1000)\n";
break;
case Types.DATE:
text += "date\n";
break;
case Types.TIME:
text += "time\n";
break;
case Types.TIMESTAMP:
text += "datetime\n";
break;
case Types.BOOLEAN:
case Types.BIT:
text += "bit\n";
break;
case Types.CLOB:
text += "varchar(16384)\n";
break;
case Types.BLOB:
case Types.BINARY:
case Types.VARBINARY:
case Types.LONGVARBINARY:
case -10: // SQL-Server ntext binary type
text += "varbinary(16384)\n";
break;
case Types.OTHER:
text += "varbinary(16384)\n";
break;
default:
if (columns[i].getJdbcTypeName() != null
&& columns[i].getJdbcTypeName().equalsIgnoreCase("interval")) {
text += "interval";
break;
}
throw new NotImplementedException(columns[i] + " is of type "
+ columns[i].getMappedType());
}
text += appendSemicolonAfterDeclare();
}
return text;
}
protected String appendSemicolonAfterDeclare() {
return "";
}
}