inteligr8/alfresco-community-repo
1
0
Fork 0
mirror of https://github.com/Alfresco/alfresco-community-repo.git synced 2025-08-07 17:49:17 +00:00
Code Issues Packages Projects Releases Wiki Activity

WOR-107: String properties that exceed DB-column TEXT_ max length are stored as binary automatically

Browse Source 
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@55894 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Frederik Heremans
2013-09-24 12:25:28 +00:00
parent 4055228bdb
commit c50bc56921
3 changed files with 119 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
source/java/org/alfresco/repo/workflow/activiti/AlfrescoProcessEngineConfiguration.java
View File

@@ -29,6 +29,7 @@ import org.activiti.engine.impl.variable.SerializableType;
import org.activiti.engine.impl.variable.VariableType;
import org.activiti.spring.SpringProcessEngineConfiguration;
import org.alfresco.repo.transaction.AlfrescoTransactionSupport;
import org.alfresco.repo.workflow.activiti.variable.CustomStringVariableType;
import org.alfresco.service.cmr.repository.NodeService;
/**
@@ -61,6 +62,11 @@ public class AlfrescoProcessEngineConfiguration extends SpringProcessEngineConfi
variableTypes.addType(type, serializableIndex);
}
}
// WOR-171: Replace string type by custom one to handle large text-values
int stringIndex = variableTypes.getTypeIndex("string");
variableTypes.removeType(variableTypes.getVariableType("string"));
variableTypes.addType(new CustomStringVariableType(), stringIndex);
}
@Override

73
source/java/org/alfresco/repo/workflow/activiti/variable/CustomStringVariableType.java Normal file
View File

@@ -0,0 +1,73 @@
/*
* Copyright (C) 2005-2011 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
*/
package org.alfresco.repo.workflow.activiti.variable;
import org.activiti.engine.impl.persistence.entity.ByteArrayEntity;
import org.activiti.engine.impl.variable.StringType;
import org.activiti.engine.impl.variable.ValueFields;
/**
* Custom implementation of the Activiti {@link StringType}, which allows string-values
* to be larger than the database-restriction of the TEXT_ column, by using binary storage in case
* the string value exceeds the size.
*
* @author Frederik Heremans
* @since 4.2
*/
public class CustomStringVariableType extends StringType {
protected static final int MAX_TEXT_LENGTH = 4000;
@Override
public void setValue(Object value, ValueFields valueFields)
{
if(value != null && ((String) value).length() > MAX_TEXT_LENGTH)
{
ByteArrayEntity byteArray = valueFields.getByteArrayValue();
byte[] bytes = ((String) value).getBytes();
if (byteArray==null)
{
valueFields.setByteArrayValue(bytes);
}
else
{
// Reuse the existing byte-array entity on an update instead of creating a new one each time
byteArray.setBytes(bytes);
}
}
else {
// Make sure NO byte-array is present anymore in case this variable exceeded the
// length before this update, but is shorter now
valueFields.setByteArrayValue(null);
// Revert to storing regular string
super.setValue(value, valueFields);
}
}
@Override
public Object getValue(ValueFields valueFields)
{
// In case the string is stored as a byte-array, create a string from the stored bytes
// using platform encoding and return this instead of the text-value
if(valueFields.getByteArrayValueId() != null && valueFields.getByteArrayValue() != null) {
return new String(valueFields.getByteArrayValue().getBytes());
}
return super.getValue(valueFields);
}
}