templates.util.BlobUtilImpl.ftl Maven / Gradle / Ivy
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Maven plugin to generate Java classes from StoredProcedure and Functions in Database
<#if header>
/*
* Copyright (C) 2019 Yadickson Soto
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
package ${javaPackage}.${utilFolderName};
<#assign importList = ["java.io.InputStream", "java.sql.Connection", "java.sql.Blob", "org.apache.commons.io.IOUtils", "org.springframework.stereotype.Component"]>
<#if logger>
<#assign importList = importList + ["org.slf4j.Logger", "org.slf4j.LoggerFactory"]>
<#if driverName == 'oracle'>
<#assign importList = importList + ["java.io.OutputStream", "oracle.jdbc.OracleConnection"]>
<#if driverVersionName == 'ojdbc6' >
<#assign importList = importList + ["oracle.sql.BLOB"]>
<#list importSort(importList) as import>
<#if previousImportMatch?? && !import?starts_with(previousImportMatch)>
import ${import};
<#assign previousImportMatch = import?keep_before_last(".") >
<#if importList?has_content>
<#if documentation>
/**
* Class to process blob element.
*
* @author @GENERATOR.NAME@
* @version @GENERATOR.VERSION@
*/
@Component
<#if driverVersionName == 'ojdbc6' >
@SuppressWarnings({"deprecation"})
final class ${prefixUtilityName}BlobUtilImpl
implements ${prefixUtilityName}BlobUtil {
<#if logger>
<#if documentation>
/**
* Logger.
*/
private static final Logger LOGGER
= LoggerFactory.getLogger(${prefixUtilityName}BlobUtilImpl.class);
<#if documentation>
/**
* {@inheritDoc}
*/
@Override
public byte[] process(final Object object) {
if (object == null) {
return new byte[0];
}
Blob blob = (Blob) object;
byte[] result;
try (InputStream stream = blob.getBinaryStream()) {
result = IOUtils.toByteArray(stream, blob.length());
} catch (Exception ex) {
<#if logger>
LOGGER.error(ex.getMessage(), ex);
result = new byte[0];
}
return result;
}
<#if documentation>
/**
* {@inheritDoc}
*/
@Override
public Object process(
final Connection connection,
final byte[] param
) {
<#if driverName != 'oracle' >
return param;
<#else>
<#if driverVersionName == 'ojdbc6' >BLOB<#else>Blob blob = null;
try {
OracleConnection <#if prefixUtilityName??>${prefixUtilityName?uncap_first}Conn<#else>conn;
<#if prefixUtilityName??>${prefixUtilityName?uncap_first}Conn<#else>conn = connection.unwrap(OracleConnection.class);
<#if driverVersionName != 'ojdbc6' >
blob = <#if prefixUtilityName??>${prefixUtilityName?uncap_first}Conn<#else>conn.createBlob();
<#else>
blob = BLOB.createTemporary(
<#if prefixUtilityName??>${prefixUtilityName?uncap_first}Conn<#else>conn,
false,
BLOB.DURATION_SESSION
);
blob = write(blob, param);
} catch (Exception ex) {
<#if logger>
LOGGER.error(ex.getMessage(), ex);
blob = null;
}
return blob;
}
private <#if driverVersionName == 'ojdbc6' >BLOB<#else>Blob write(final <#if driverVersionName == 'ojdbc6' >BLOB<#else>Blob blob, final byte[] param) {
try (OutputStream <#if prefixUtilityName??>${prefixUtilityName?uncap_first}Stream<#else>stream = blob.<#if driverVersionName != 'ojdbc6' >setBinaryStream(0)<#else>getBinaryOutputStream()) {
<#if prefixUtilityName??>${prefixUtilityName?uncap_first}Stream<#else>stream.write(param);
return blob;
} catch (Exception ex) {
<#if logger>
LOGGER.error(ex.getMessage(), ex);
<#else>
return null;
}
}
}