/**
* JBoss, Home of Professional Open Source
* Copyright Red Hat, Inc., and individual contributors.
*
* Licensed 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.jboss.aerogear.unifiedpush.migrator;
import liquibase.change.custom.CustomSqlChange;
import liquibase.database.Database;
import liquibase.database.jvm.JdbcConnection;
import liquibase.exception.CustomChangeException;
import liquibase.exception.SetupException;
import liquibase.exception.ValidationErrors;
import liquibase.resource.ResourceAccessor;
import liquibase.statement.SqlStatement;
import liquibase.statement.core.UpdateStatement;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.sql.Blob;
import java.sql.Connection;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.Base64;
import java.util.List;
public class CertificateBlobToBase64 implements CustomSqlChange {
private String confirmationMessage = "";
@Override
public SqlStatement[] generateStatements(Database database) throws CustomChangeException {
List<SqlStatement> statements = new ArrayList<>();
Connection conn = ((JdbcConnection) (database.getConnection())).getWrappedConnection();
try {
conn.setAutoCommit(false);
ResultSet resultSet = conn.createStatement().executeQuery("SELECT id, certificate from ios_variant");
while (resultSet.next()) {
String id = resultSet.getString("id");
Blob blob = resultSet.getBlob("certificate");
InputStream certificate = blob.getBinaryStream();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
int bytesRead = -1;
byte[] buffer = new byte[1024];
while ((bytesRead = certificate.read(buffer)) != -1) {
stream.write(buffer, 0, bytesRead);
}
final String certificateData = Base64.getEncoder().encodeToString(stream.toByteArray());
UpdateStatement updateStatement = new UpdateStatement(null, null, "ios_variant")
.addNewColumnValue("cert_data", certificateData)
.setWhereClause("id='" + id + "'");
statements.add(updateStatement);
}
conn.commit();
if (!statements.isEmpty()) {
confirmationMessage = "updated certificate data successfully";
}
return statements.toArray(new SqlStatement[statements.size()]);
} catch (Exception e) {
throw new CustomChangeException("Failed to migrate certificate data");
}
}
@Override
public String getConfirmationMessage() {
return confirmationMessage;
}
@Override
public void setUp() throws SetupException {
}
@Override
public void setFileOpener(ResourceAccessor resourceAccessor) {
}
@Override
public ValidationErrors validate(Database database) {
return null;
}
}