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add batch methods to SqlUpdate

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Jörg Prante 2 years ago
parent a9fb8eaa2f
commit 1c1a1ed55a
4 changed files with 114 additions and 11 deletions
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2
gradle.properties
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@ -1,6 +1,6 @@
group = org.xbib
name = database
version = 0.0.3
version = 0.0.4
org.gradle.warning.mode = ALL

8
jdbc-query/src/main/java/org/xbib/jdbc/query/SqlInsertImpl.java
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@ -269,7 +269,7 @@ public class SqlInsertImpl implements SqlInsert {
@Override
public void insertBatch() {
int[] result = updateBatch();
int[] result = insertBatchInternal();
for (int r : result) {
// Tolerate SUCCESS_NO_INFO for older versions of Oracle
if (r != 1 && r != Statement.SUCCESS_NO_INFO) {
@ -280,7 +280,7 @@ public class SqlInsertImpl implements SqlInsert {
@Override
public int[] insertBatchUnchecked() {
return updateBatch();
return insertBatchInternal();
}
@Override
@ -414,7 +414,7 @@ public class SqlInsertImpl implements SqlInsert {
return pkArgName != null || pkSeqName != null || pkLong != null;
}
private int[] updateBatch() {
private int[] insertBatchInternal() {
batch();
if (batched == null || batched.size() == 0) {
@ -682,7 +682,7 @@ public class SqlInsertImpl implements SqlInsert {
return b == null ? null : b ? "Y" : "N";
}
private class Batch {
private static class Batch {
private final List<Object> parameterList; // !null ==> traditional ? args
private final Map<String, Object> parameterMap; // !null ==> named :abc args

6
jdbc-query/src/main/java/org/xbib/jdbc/query/SqlUpdate.java
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@ -77,6 +77,8 @@ public interface SqlUpdate {
SqlUpdate apply(Apply apply);
SqlUpdate batch();
/**
* Execute the SQL update and return the number of rows was affected.
*/
@ -90,6 +92,10 @@ public interface SqlUpdate {
*/
void update(int expectedRowsUpdated);
void updateBatch();
int[] updateBatchUnchecked();
interface Apply {
void apply(SqlUpdate update);
}

109
jdbc-query/src/main/java/org/xbib/jdbc/query/SqlUpdateImpl.java
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@ -1,5 +1,6 @@
package org.xbib.jdbc.query;
import java.sql.Statement;
import java.sql.Types;
import org.xbib.jdbc.query.util.DebugSql;
import org.xbib.jdbc.query.util.InternalStringReader;
@ -14,6 +15,7 @@ import java.sql.PreparedStatement;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@ -34,7 +36,9 @@ public class SqlUpdateImpl implements SqlUpdate {
private final String sql;
private final Options options;
private List<Batch> batched;
private List<Object> parameterList;
private Map<String, Object> parameterMap;
@ -247,6 +251,20 @@ public class SqlUpdateImpl implements SqlUpdate {
return this;
}
@Override
public SqlUpdate batch() {
if ((parameterList != null && !parameterList.isEmpty())
|| (parameterMap != null && !parameterMap.isEmpty())) {
if (batched == null) {
batched = new ArrayList<>();
}
batched.add(new Batch(parameterList, parameterMap));
parameterList = new ArrayList<>();
parameterMap = new HashMap<>();
}
return this;
}
@Override
public int update() {
return updateInternal(0);
@ -257,13 +275,85 @@ public class SqlUpdateImpl implements SqlUpdate {
updateInternal(expectedNumAffectedRows);
}
private int updateInternal(int expectedNumAffectedRows) {
@Override
public void updateBatch() {
int[] result = updateBatchInternal();
for (int r : result) {
// Tolerate SUCCESS_NO_INFO for older versions of Oracle
if (r != 1 && r != Statement.SUCCESS_NO_INFO) {
throw new DatabaseException("Batch did not return the expected result: " + Arrays.toString(result));
}
}
}
@Override
public int[] updateBatchUnchecked() {
return updateBatchInternal();
}
private int[] updateBatchInternal() {
batch();
if (batched == null || batched.size() == 0) {
throw new DatabaseException("Batch insert requires parameters");
}
PreparedStatement ps = null;
Metric metric = new Metric(log.isLoggable(Level.FINE));
String executeSql = sql;
Object[] firstRowParameters = null;
List<Object[]> parameters = new ArrayList<>();
boolean isSuccess = false;
String errorCode = null;
Exception logEx = null;
try {
for (Batch batch : batched) {
MixedParameterSql mpSql = new MixedParameterSql(sql, batch.parameterList, batch.parameterMap);
if (firstRowParameters == null) {
executeSql = mpSql.getSqlToExecute();
firstRowParameters = mpSql.getArgs();
} else {
if (!executeSql.equals(mpSql.getSqlToExecute())) {
throw new DatabaseException("All rows in a batch must use parameters in the same way. \nSQL1: "
+ executeSql + "\nSQL2: " + mpSql.getSqlToExecute());
}
}
parameters.add(mpSql.getArgs());
}
if (connection != null) {
ps = connection.prepareStatement(executeSql);
for (Object[] params : parameters) {
adaptor.addParameters(ps, params);
ps.addBatch();
}
metric.checkpoint("prep");
int[] numAffectedRows = ps.executeBatch();
metric.checkpoint("execBatch", parameters.size());
isSuccess = true;
return numAffectedRows;
} else {
return new int[]{-1};
}
} catch (WrongNumberOfRowsException e) {
throw e;
} catch (Exception e) {
errorCode = options.generateErrorCode();
logEx = e;
throw DatabaseException.wrap(DebugSql.exceptionMessage(executeSql, firstRowParameters, errorCode, options), e);
} finally {
adaptor.closeQuietly(ps, log);
metric.done("close");
if (isSuccess) {
DebugSql.logSuccess("Insert", log, metric, executeSql, firstRowParameters, options);
} else {
DebugSql.logError("Insert", log, metric, errorCode, executeSql, firstRowParameters, options, logEx);
}
}
}
private int updateInternal(int expectedNumAffectedRows) {
PreparedStatement ps = null;
Metric metric = new Metric(log.isLoggable(Level.FINE));
String executeSql = sql;
Object[] parameters = null;
boolean isSuccess = false;
String errorCode = null;
Exception logEx = null;
@ -271,7 +361,6 @@ public class SqlUpdateImpl implements SqlUpdate {
MixedParameterSql mpSql = new MixedParameterSql(sql, parameterList, parameterMap);
executeSql = mpSql.getSqlToExecute();
parameters = mpSql.getArgs();
if (connection != null) {
ps = connection.prepareStatement(executeSql);
adaptor.addParameters(ps, parameters);
@ -305,7 +394,6 @@ public class SqlUpdateImpl implements SqlUpdate {
}
}
}
private SqlUpdate positionalArg(Object arg) {
if (parameterList == null) {
@ -314,7 +402,6 @@ public class SqlUpdateImpl implements SqlUpdate {
parameterList.add(arg);
return this;
}
private SqlUpdate namedArg(String argName, Object arg) {
if (parameterMap == null) {
@ -330,4 +417,14 @@ public class SqlUpdateImpl implements SqlUpdate {
private String booleanToString(Boolean b) {
return b == null ? null : b ? "Y" : "N";
}
private static class Batch {
private final List<Object> parameterList; // !null ==> traditional ? args
private final Map<String, Object> parameterMap; // !null ==> named :abc args
public Batch(List<Object> parameterList, Map<String, Object> parameterMap) {
this.parameterList = parameterList;
this.parameterMap = parameterMap;
}
}
}

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