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Performance improvements to generation of QNamePath for a script object

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- the slowest part of the code is the Path.toString() - where it retrieves namespace prefixes for QName's from the DD (!)
Execute Share Search REST API test:
 Before: ScriptNode.getQnamePath() - 74686ms (20% total CPU time)
 After: ScriptNode.getQnamePath() - 16345ms (5% total CPU time)

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@47552 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Kevin Roast
2013-03-05 10:17:05 +00:00
parent d9af7b3994
commit 5a13172d98
1 changed files with 38 additions and 4 deletions
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42
source/java/org/alfresco/repo/jscript/ScriptNode.java
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@@ -196,6 +196,7 @@ public class ScriptNode implements Scopeable, NamespacePrefixResolverProvider
private Boolean isLinkToContainer = null;
private Boolean hasChildren = null;
private String displayPath = null;
private String qnamePath = null;
protected TemplateImageResolver imageResolver = null;
protected ScriptNode parent = null;
private ChildAssociationRef primaryParentAssoc = null;
@@ -1169,7 +1170,39 @@ public class ScriptNode implements Scopeable, NamespacePrefixResolverProvider
*/
public String getQnamePath()
{
return this.services.getNodeService().getPath(getNodeRef()).toPrefixString(this.services.getNamespaceService());
if (this.qnamePath == null)
{
final NamespaceService ns = this.services.getNamespaceService();
final Map<String, String> cache = new HashMap<String, String>();
final StringBuilder buf = new StringBuilder(128);
final Path path = this.services.getNodeService().getPath(getNodeRef());
for (final Path.Element e : path)
{
if (e instanceof Path.ChildAssocElement)
{
final QName qname = ((Path.ChildAssocElement)e).getRef().getQName();
if (qname != null)
{
String prefix = cache.get(qname.getNamespaceURI());
if (prefix == null)
{
// first request for this namespace prefix, get and cache result
Collection<String> prefixes = ns.getPrefixes(qname.getNamespaceURI());
prefix = prefixes.size() != 0 ? prefixes.iterator().next() : "";
cache.put(qname.getNamespaceURI(), prefix);
}
buf.append('/').append(prefix).append(':').append(ISO9075.encode(qname.getLocalName()));
}
}
else
{
buf.append('/').append(e.toString());
}
}
this.qnamePath = buf.toString();
}
return this.qnamePath;
}
/**
@@ -1177,13 +1210,13 @@ public class ScriptNode implements Scopeable, NamespacePrefixResolverProvider
*/
public String getDisplayPath()
{
if (displayPath == null)
if (this.displayPath == null)
{
displayPath = this.nodeService.getPath(this.nodeRef).toDisplayPath(
this.displayPath = this.nodeService.getPath(this.nodeRef).toDisplayPath(
this.nodeService, this.services.getPermissionService());
}
return displayPath;
return this.displayPath;
}
/**
@@ -3399,6 +3432,7 @@ public class ScriptNode implements Scopeable, NamespacePrefixResolverProvider
this.hasChildren = null;
this.parentAssocs = null;
this.displayPath = null;
this.qnamePath = null;
this.isDocument = null;
this.isContainer = null;
this.parent = null;