Gabriel Roldán created GEOS-5074:
------------------------------------
Summary: DefaultCatalogFacade's encapsulation of styles broken,
and risks concurrent modification exceptions on styles and layergroups
Key: GEOS-5074
URL: https://jira.codehaus.org/browse/GEOS-5074
Project: GeoServer
Issue Type: Bug
Components: Configuration
Affects Versions: 2.2-beta1
Reporter: Gabriel Roldán
Assignee: Gabriel Roldán
Fix For: 2.2-beta2
Solution is to use {{CopyOnWriteArrayList}} instead of plain {{ArrayList}} to
maintain the internal list of styles and layer groups, as it's done for other
resources, and to return a safe copy of styles in {{getStyles()}}
Patch:
{code}
---
a/src/main/src/main/java/org/geoserver/catalog/impl/DefaultCatalogFacade.java
+++
b/src/main/src/main/java/org/geoserver/catalog/impl/DefaultCatalogFacade.java
@@ -112,12 +112,12 @@ public class DefaultCatalogFacade implements
CatalogFacade {
/**
* layer groups
*/
- protected List<LayerGroupInfo> layerGroups = new
ArrayList<LayerGroupInfo>();
+ protected List<LayerGroupInfo> layerGroups = new
CopyOnWriteArrayList<LayerGroupInfo>();
/**
* styles
*/
- protected List<StyleInfo> styles = new ArrayList();
+ protected List<StyleInfo> styles = new CopyOnWriteArrayList<StyleInfo>();
/**
* the catalog
@@ -894,9 +894,9 @@ public class DefaultCatalogFacade implements CatalogFacade {
}
return null;
}
-
- public List getStyles() {
- return ModificationProxy.createList(styles,StyleInfo.class);
+
+ public List<StyleInfo> getStyles() {
+ return ModificationProxy.createList(new ArrayList<StyleInfo>(styles),
StyleInfo.class);
}
public List<StyleInfo> getStylesByWorkspace(WorkspaceInfo workspace) {
diff --git
a/src/main/src/test/java/org/geoserver/catalog/impl/CatalogImplTest.java
b/src/main/src/test/java/org/geoserver/catalog/impl/CatalogImplTest.java
index 7a2410a..de4ae1a 100644
--- a/src/main/src/test/java/org/geoserver/catalog/impl/CatalogImplTest.java
+++ b/src/main/src/test/java/org/geoserver/catalog/impl/CatalogImplTest.java
@@ -4,6 +4,7 @@ import java.lang.reflect.Proxy;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
+import java.util.HashSet;
import java.util.List;
import java.util.concurrent.CountDownLatch;
@@ -1168,7 +1169,7 @@ public class CatalogImplTest extends TestCase {
StyleInfo s2 = catalog.getFactory().createStyle();
s2.setName(s.getName());
s2.setFilename(s.getFilename());
-
+
try {
catalog.add(s2);
fail("Shoudl have failed with existing global style with same
name");
@@ -1176,10 +1177,14 @@ public class CatalogImplTest extends TestCase {
catch(IllegalArgumentException expected) {
}
+ List<StyleInfo> currStyles = catalog.getStyles();
+
//should pass after setting workspace
s2.setWorkspace(ws);
catalog.add(s2);
{code}
--
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