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QueriesJdbcStore.java
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QueriesJdbcStore.java
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package org.infinispan.persistence.sql;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import org.infinispan.commons.configuration.ConfiguredBy;
import org.infinispan.commons.util.IntSet;
import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.persistence.jdbc.common.TableOperations;
import org.infinispan.persistence.jdbc.common.connectionfactory.ConnectionFactory;
import org.infinispan.persistence.sql.configuration.QueriesJdbcConfiguration;
import org.infinispan.persistence.sql.configuration.QueriesJdbcConfigurationBuilder;
import org.infinispan.persistence.sql.configuration.QueriesJdbcStoreConfiguration;
import org.infinispan.persistence.sql.configuration.QueriesJdbcStoreConfigurationBuilder;
@ConfiguredBy(QueriesJdbcStoreConfigurationBuilder.class)
public class QueriesJdbcStore<K, V> extends AbstractSchemaJdbcStore<K, V, QueriesJdbcStoreConfiguration> {
@Override
protected TableOperations<K, V> actualCreateTableOperations(ProtoSchemaOptions<K, V, QueriesJdbcStoreConfiguration> options) {
QueriesJdbcConfigurationBuilder<?> builder = new QueriesJdbcConfigurationBuilder<>(new ConfigurationBuilder().persistence().addStore(QueriesJdbcStoreConfigurationBuilder.class));
QueriesJdbcConfiguration originalConfig = config.getQueriesJdbcConfiguration();
builder.read(originalConfig);
QueryNamedParameterParser.ParserResults selectResults = QueryNamedParameterParser.parseSqlStatement(originalConfig.select());
builder.select(selectResults.getSqlToUse());
if (config.ignoreModifications()) {
return new QueryTableOperations(options, null, builder.create());
}
QueryNamedParameterParser.ParserResults deleteResults = QueryNamedParameterParser.parseSqlStatement(originalConfig.delete());
builder.delete(deleteResults.getSqlToUse());
// Delete all should not have any parameters
if (QueryNamedParameterParser.parseSqlStatement(originalConfig.deleteAll()).getOrderedParameters().size() > 0) {
throw log.deleteAllCannotHaveParameters(config.getQueriesJdbcConfiguration().selectAll());
}
// Size should not have any parameters
if (QueryNamedParameterParser.parseSqlStatement(originalConfig.size()).getOrderedParameters().size() > 0) {
throw log.sizeCannotHaveParameters(config.getQueriesJdbcConfiguration().selectAll());
}
// This ensures that delete and select parameters match, so we only need on instance of key parameters for both
if (!deleteResults.getOrderedParameters().equals(selectResults.getOrderedParameters())) {
throw log.deleteAndSelectQueryMismatchArguments(deleteResults.getOrderedParameters(), selectResults.getOrderedParameters());
}
// (e.g.) INSERT INTO books (isbn, title) VALUES (:key, :value) ON CONFLICT (isbn) DO UPDATE SET title = :value
QueryNamedParameterParser.ParserResults upsertResults = QueryNamedParameterParser.parseSqlStatement(
originalConfig.upsert());
builder.upsert(upsertResults.getSqlToUse());
Map<String, Parameter> parameterMap = new HashMap<>();
// This includes all the keys as well
for (Parameter parameter : options.valueParameters) {
parameterMap.put(parameter.getName().toUpperCase(), parameter);
}
Parameter[] upsertParameters = upsertResults.getOrderedParameters().stream().map(name -> {
Parameter param = parameterMap.get(name.toUpperCase());
if (param == null) {
throw log.deleteAndSelectQueryMismatchArguments(name, originalConfig.upsert(), originalConfig.selectAll());
}
return param;
}).toArray(Parameter[]::new);
return new QueryTableOperations(options, upsertParameters, builder.create());
}
@Override
Parameter[] generateParameterInformation(QueriesJdbcStoreConfiguration config, ConnectionFactory connectionFactory)
throws SQLException {
QueryNamedParameterParser.ParserResults parserResults = QueryNamedParameterParser.parseSqlStatement(
config.getQueriesJdbcConfiguration().selectAll());
if (parserResults.getOrderedParameters().size() > 0) {
throw log.selectAllCannotHaveParameters(config.getQueriesJdbcConfiguration().selectAll());
}
String selectAllSql = parserResults.getSqlToUse();
String[] keyColumns = config.keyColumns().split(",");
int keyCount = keyColumns.length;
Map<String, Parameter> namedParams = new HashMap<>();
Connection connection = connectionFactory.getConnection();
try (PreparedStatement ps = connection.prepareStatement(selectAllSql)) {
// Only retrieve 1 - we can't do 0 as this means use default
ps.setFetchSize(1);
try (ResultSet rs = ps.executeQuery()) {
ResultSetMetaData rsMetadata = rs.getMetaData();
Parameter[] parameters = new Parameter[rsMetadata.getColumnCount()];
for (int i = 1; i <= rsMetadata.getColumnCount(); ++i) {
int columnType = rsMetadata.getColumnType(i);
String name = rsMetadata.getColumnName(i);
int scale = rsMetadata.getScale(i);
int actualType = typeWeUse(columnType, rsMetadata.getColumnTypeName(i), scale);
ProtostreamFieldType type = ProtostreamFieldType.from(actualType);
String lowerCaseName = name.toLowerCase();
// Make sure to reuse same parameter instance just with different offset
Parameter parameter = namedParams.get(lowerCaseName);
if (parameter == null) {
boolean primaryIdentifier = isPresent(keyColumns, name);
if (primaryIdentifier) {
keyCount--;
}
parameter = new Parameter(name.toLowerCase(), type, primaryIdentifier, columnType);
namedParams.put(lowerCaseName, parameter);
}
// TODO: what if the schema is in camel case?
parameters[i - 1] = parameter;
}
if (keyCount != 0) {
throw log.keyColumnsNotReturnedFromSelectAll(Arrays.toString(keyColumns),
config.getQueriesJdbcConfiguration().selectAll());
}
return parameters;
}
} finally {
connectionFactory.releaseConnection(connection);
}
}
@Override
protected Parameter[] determinePrimaryParameters(QueriesJdbcStoreConfiguration config, Parameter[] allParameters) {
QueryNamedParameterParser.ParserResults selectResults = QueryNamedParameterParser.parseSqlStatement(
config.getQueriesJdbcConfiguration().select());
return selectResults.getOrderedParameters().stream().map(name -> {
for (Parameter parameter : allParameters) {
if (parameter.getName().equals(name)) {
return parameter;
}
}
throw log.namedParamNotReturnedFromSelect(name, config.getQueriesJdbcConfiguration().selectAll(),
config.getQueriesJdbcConfiguration().select());
}).toArray(Parameter[]::new);
}
private static boolean isPresent(String[] array, String value) {
for (String s : array) {
// TODO: some DBs may not be case sensitive?
if (s.trim().equalsIgnoreCase(value)) {
return true;
}
}
return false;
}
public class QueryTableOperations extends SchemaTableOperations<K, V, QueriesJdbcStoreConfiguration> {
private final QueriesJdbcConfiguration modifiedQueryConfig;
public QueryTableOperations(ProtoSchemaOptions<K, V, QueriesJdbcStoreConfiguration> options, Parameter[] upsertParameters,
QueriesJdbcConfiguration modifiedQueryConfig) {
super(options, upsertParameters);
this.modifiedQueryConfig = modifiedQueryConfig;
}
@Override
public String getSelectRowSql() {
return modifiedQueryConfig.select();
}
@Override
public String getSelectAllSql(IntSet segments) {
return modifiedQueryConfig.selectAll();
}
@Override
public String getDeleteRowSql() {
return modifiedQueryConfig.delete();
}
@Override
public String getUpsertRowSql() {
return modifiedQueryConfig.upsert();
}
@Override
public String getDeleteAllSql() {
return modifiedQueryConfig.deleteAll();
}
@Override
public String getSizeSql() {
return modifiedQueryConfig.size();
}
}
}