org.apache.camel.component.sql.DefaultSqlProcessingStrategy Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.apache.camel.component.sql;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Iterator;
import org.apache.camel.Exchange;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.PreparedStatementCallback;
/**
*
*/
public class DefaultSqlProcessingStrategy implements SqlProcessingStrategy {
private static final Logger LOG = LoggerFactory.getLogger(DefaultSqlProcessingStrategy.class);
private final SqlPrepareStatementStrategy sqlPrepareStatementStrategy;
public DefaultSqlProcessingStrategy(SqlPrepareStatementStrategy sqlPrepareStatementStrategy) {
this.sqlPrepareStatementStrategy = sqlPrepareStatementStrategy;
}
@Override
public int commit(
final DefaultSqlEndpoint endpoint, final Exchange exchange, final Object data, final JdbcTemplate jdbcTemplate,
final String query)
throws Exception {
final String preparedQuery
= sqlPrepareStatementStrategy.prepareQuery(query, endpoint.isAllowNamedParameters(), exchange);
return jdbcTemplate.execute(preparedQuery, new PreparedStatementCallback() {
public Integer doInPreparedStatement(PreparedStatement ps) throws SQLException {
int expected = ps.getParameterMetaData().getParameterCount();
Iterator iterator
= sqlPrepareStatementStrategy.createPopulateIterator(query, preparedQuery, expected, exchange, data);
if (iterator != null) {
sqlPrepareStatementStrategy.populateStatement(ps, iterator, expected);
LOG.trace("Execute query {}", query);
ps.execute();
int updateCount = ps.getUpdateCount();
if (LOG.isTraceEnabled()) {
LOG.trace("Update count {}", updateCount);
}
return updateCount;
}
return 0;
}
});
}
@Override
public int commitBatchComplete(final DefaultSqlEndpoint endpoint, final JdbcTemplate jdbcTemplate, final String query)
throws Exception {
final String preparedQuery = sqlPrepareStatementStrategy.prepareQuery(query, endpoint.isAllowNamedParameters(), null);
return jdbcTemplate.execute(preparedQuery, new PreparedStatementCallback() {
public Integer doInPreparedStatement(PreparedStatement ps) throws SQLException {
int expected = ps.getParameterMetaData().getParameterCount();
if (expected != 0) {
throw new IllegalArgumentException(
"Query onConsumeBatchComplete " + query + " cannot have parameters, was " + expected);
}
LOG.trace("Execute query {}", query);
ps.execute();
int updateCount = ps.getUpdateCount();
if (LOG.isTraceEnabled()) {
LOG.trace("Update count {}", updateCount);
}
return updateCount;
}
});
}
}