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Allow a Web Script to override transactional response buffer size

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- <transaction buffersize="xxx"> where xxx is bytes
- 0 or less disables cache
- default = 4096
- use with care

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@14701 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
David Caruana
2009-06-12 16:39:39 +00:00
parent abacbf1c6b
commit 15cab4756d
1 changed files with 28 additions and 14 deletions
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42
source/java/org/alfresco/repo/web/scripts/RepositoryContainer.java
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@@ -66,6 +66,7 @@ import org.alfresco.web.scripts.WebScriptResponse;
import org.alfresco.web.scripts.WrappingWebScriptResponse;
import org.alfresco.web.scripts.Description.RequiredAuthentication;
import org.alfresco.web.scripts.Description.RequiredTransaction;
import org.alfresco.web.scripts.Description.RequiredTransactionParameters;
import org.alfresco.web.scripts.Description.TransactionCapability;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
@@ -329,19 +330,29 @@ public class RepositoryContainer extends AbstractRuntimeContainer implements Ten
try
{
if (logger.isDebugEnabled())
logger.debug("Begin retry transaction block: " + description.getRequiredTransaction() + "," + description.getTransactionCapability());
logger.debug("Begin retry transaction block: " + description.getRequiredTransaction() + ","
+ description.getRequiredTransactionParameters().getCapability());
WebScriptResponse redirectedRes = scriptRes;
if (description.getTransactionCapability() == TransactionCapability.readwrite)
RequiredTransactionParameters trxParams = description.getRequiredTransactionParameters();
if (trxParams.getCapability() == TransactionCapability.readwrite)
{
if (logger.isDebugEnabled())
logger.debug("Creating Transactional Response for ReadWrite transaction");
// create buffered response that's sensitive transaction boundary
BufferedResponse bufferedRes = new BufferedResponse(scriptRes);
AlfrescoTransactionSupport.bindResource(BUFFERED_RESPONSE_KEY, bufferedRes);
AlfrescoTransactionSupport.bindListener(bufferedRes);
redirectedRes = bufferedRes;
if (trxParams.getBufferSize() > 0)
{
if (logger.isDebugEnabled())
logger.debug("Creating Transactional Response for ReadWrite transaction; buffersize=" + trxParams.getBufferSize());
// create buffered response that's sensitive transaction boundary
BufferedResponse bufferedRes = new BufferedResponse(scriptRes, trxParams.getBufferSize());
AlfrescoTransactionSupport.bindResource(BUFFERED_RESPONSE_KEY, bufferedRes);
AlfrescoTransactionSupport.bindListener(bufferedRes);
redirectedRes = bufferedRes;
}
else
{
if (logger.isDebugEnabled())
logger.debug("Transactional Response bypassed for ReadWrite - buffersize=0");
}
}
script.execute(scriptReq, redirectedRes);
@@ -384,14 +395,15 @@ public class RepositoryContainer extends AbstractRuntimeContainer implements Ten
finally
{
if (logger.isDebugEnabled())
logger.debug("End retry transaction block: " + description.getRequiredTransaction() + "," + description.getTransactionCapability());
logger.debug("End retry transaction block: " + description.getRequiredTransaction() + ","
+ description.getRequiredTransactionParameters().getCapability());
}
return null;
}
};
boolean readonly = description.getTransactionCapability() == TransactionCapability.readonly;
boolean readonly = description.getRequiredTransactionParameters().getCapability() == TransactionCapability.readonly;
boolean requiresNew = description.getRequiredTransaction() == RequiredTransaction.requiresnew;
retryingTransactionHelper.doInTransaction(work, readonly, requiresNew);
}
@@ -499,15 +511,17 @@ public class RepositoryContainer extends AbstractRuntimeContainer implements Ten
private ByteArrayOutputStream outputStream;
private OutputStreamWriter outputWriter;
/**
* Construct
*
* @param res
* @param bufferSize
*/
public BufferedResponse(WebScriptResponse res)
public BufferedResponse(WebScriptResponse res, int bufferSize)
{
this.res = res;
this.outputStream = new ByteArrayOutputStream(4096);
this.outputStream = new ByteArrayOutputStream(bufferSize);
try
{
this.outputWriter = new OutputStreamWriter(outputStream, "UTF-8");