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svenmeier pushed a commit to branch master
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The following commit(s) were added to refs/heads/master by this push:
new 8df3528 WICKET-6563 add CachingPageStore
8df3528 is described below
commit 8df3528dc44a08b7d375c20e764a3664cd6a5f30
Author: Sven Meier <svenme...@apache.org>
AuthorDate: Fri Mar 27 10:13:13 2020 +0100
WICKET-6563 add CachingPageStore
---
.../apache/wicket/DefaultPageManagerProvider.java | 9 +-
.../apache/wicket/pageStore/CachingPageStore.java | 109
+++++++++++++++++++++
.../wicket/pageStore/InSessionPageStore.java | 82 ++++++----------
.../wicket/DefaultPageManagerProviderTest.java | 6 +-
.../core/request/mapper/TestMapperContext.java | 7 +-
.../wicket/page/PersistentPageManagerTest.java | 2 +-
.../wicket/pageStore/InSessionPageStoreTest.java | 18 +++-
.../wicket/versioning/PageVersioningTest.java | 4 +-
8 files changed, 174 insertions(+), 63 deletions(-)
diff --git
a/wicket-core/src/main/java/org/apache/wicket/DefaultPageManagerProvider.java
b/wicket-core/src/main/java/org/apache/wicket/DefaultPageManagerProvider.java
index e128266..540b1b3 100644
---
a/wicket-core/src/main/java/org/apache/wicket/DefaultPageManagerProvider.java
+++
b/wicket-core/src/main/java/org/apache/wicket/DefaultPageManagerProvider.java
@@ -21,6 +21,7 @@ import java.io.File;
import org.apache.wicket.page.IPageManager;
import org.apache.wicket.page.PageManager;
import org.apache.wicket.pageStore.AsynchronousPageStore;
+import org.apache.wicket.pageStore.CachingPageStore;
import org.apache.wicket.pageStore.CryptingPageStore;
import org.apache.wicket.pageStore.DiskPageStore;
import org.apache.wicket.pageStore.FilePageStore;
@@ -103,7 +104,7 @@ public class DefaultPageManagerProvider implements
IPageManagerProvider
store = newAsynchronousStore(store);
- store = newSessionStore(store);
+ store = newCachingStore(store);
store = newRequestStore(store);
@@ -125,7 +126,7 @@ public class DefaultPageManagerProvider implements
IPageManagerProvider
}
/**
- * Cache pages in the request until it is finished.
+ * Keep pages in the request until it is finished.
*
* @see RequestPageStore
*/
@@ -139,9 +140,9 @@ public class DefaultPageManagerProvider implements
IPageManagerProvider
*
* @see InSessionPageStore
*/
- protected IPageStore newSessionStore(IPageStore pageStore)
+ protected IPageStore newCachingStore(IPageStore pageStore)
{
- return new InSessionPageStore(pageStore, 1,
getSerializer());
+ return new CachingPageStore(pageStore, new
InSessionPageStore(1, getSerializer()));
}
/**
diff --git
a/wicket-core/src/main/java/org/apache/wicket/pageStore/CachingPageStore.java
b/wicket-core/src/main/java/org/apache/wicket/pageStore/CachingPageStore.java
new file mode 100644
index 0000000..d4eff87
--- /dev/null
+++
b/wicket-core/src/main/java/org/apache/wicket/pageStore/CachingPageStore.java
@@ -0,0 +1,109 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.wicket.pageStore;
+
+import org.apache.wicket.page.IManageablePage;
+
+/**
+ * A store of pages that uses an {@link IPageStore} as a cache in front
of another store to delegate to.
+ */
+public class CachingPageStore extends DelegatingPageStore
+{
+
+ private IPageStore cache;
+
+ /**
+ * Constructor.
+ * @param delegate store to delegate to
+ * @param cache store to use as cache
+ */
+ public CachingPageStore(IPageStore delegate, IPageStore cache)
+ {
+ super(delegate);
+
+ this.cache = cache;
+ }
+
+ /**
+ * Get the store used a cache.
+ *
+ * @return store
+ */
+ public IPageStore getCache()
+ {
+ return cache;
+ }
+
+ @Override
+ public IManageablePage getPage(IPageContext context, int id)
+ {
+ IManageablePage page = cache.getPage(context, id);
+ if (page != null) {
+ return page;
+ }
+
+ return getDelegate().getPage(context, id);
+ }
+
+ @Override
+ public void addPage(IPageContext context, IManageablePage page)
+ {
+ cache.addPage(context, page);
+
+ getDelegate().addPage(context, page);
+ }
+
+ @Override
+ public void removePage(IPageContext context, IManageablePage page)
+ {
+ cache.removePage(context, page);
+
+ getDelegate().removePage(context, page);
+ }
+
+ @Override
+ public void removeAllPages(IPageContext context)
+ {
+ cache.removeAllPages(context);
+
+ getDelegate().removeAllPages(context);
+ }
+
+ @Override
+ public void revertPage(IPageContext context, IManageablePage page)
+ {
+ cache.revertPage(context, page);
+
+ getDelegate().revertPage(context, page);
+ }
+
+ @Override
+ public void detach(IPageContext context)
+ {
+ cache.detach(context);
+
+ getDelegate().detach(context);
+ }
+
+ @Override
+ public void destroy()
+ {
+ cache.destroy();
+
+ getDelegate().destroy();
+ }
+}
\ No newline at end of file
diff --git
a/wicket-core/src/main/java/org/apache/wicket/pageStore/InSessionPageStore.java
b/wicket-core/src/main/java/org/apache/wicket/pageStore/InSessionPageStore.java
index 3c363fd..a1beb4d 100644
---
a/wicket-core/src/main/java/org/apache/wicket/pageStore/InSessionPageStore.java
+++
b/wicket-core/src/main/java/org/apache/wicket/pageStore/InSessionPageStore.java
@@ -26,7 +26,6 @@ import java.util.function.Supplier;
import javax.servlet.http.HttpSession;
-import org.apache.wicket.DefaultPageManagerProvider;
import org.apache.wicket.MetaDataKey;
import org.apache.wicket.Session;
import org.apache.wicket.WicketRuntimeException;
@@ -39,27 +38,16 @@ import org.apache.wicket.util.lang.Classes;
/**
* A store keeping a configurable maximum of pages in the session.
* <p>
- * This store can be used in two different ways:
- * <ul>
- * <li>as a fast cache in front of a persistent store (as used by {@link
DefaultPageManagerProvider})</li>
- * <li>as an application's persistent store of serialized pages in the
session</li>
- * </ul>
+ * Note: see {@link #getKey()} for using more than once instance in an
application
*/
-public class InSessionPageStore extends DelegatingPageStore
+public class InSessionPageStore implements IPageStore
{
- private static final MetaDataKey<SessionData> KEY_CACHE = new
MetaDataKey<>()
+ private static final MetaDataKey<SessionData> KEY = new
MetaDataKey<>()
{
private static final long serialVersionUID = 1L;
};
- private static final MetaDataKey<SessionData> KEY_PERSISTENT = new
MetaDataKey<>()
- {
- private static final long serialVersionUID = 1L;
- };
-
- private final MetaDataKey<SessionData> key;
-
private final ISerializer serializer;
private final Supplier<SessionData> dataCreator;
@@ -75,7 +63,7 @@ public class InSessionPageStore extends
DelegatingPageStore
*/
public InSessionPageStore(int maxPages)
{
- this(new NoopPageStore(), null, KEY_PERSISTENT, () -> new
CountLimitedData(maxPages));
+ this(null, () -> new CountLimitedData(maxPages));
}
/**
@@ -89,23 +77,7 @@ public class InSessionPageStore extends
DelegatingPageStore
*/
public InSessionPageStore(Bytes maxBytes)
{
- this(new NoopPageStore(), null, KEY_PERSISTENT, () -> new
SizeLimitedData(maxBytes));
- }
-
- /**
- * Keep a cache of {@code maxPages} in each session.
- * <p>
- * If the container serializes sessions to disk, any non-{@code
SerializedPage} added to this
- * store will be dropped.
- *
- * @param delegate
- * store to delegate to
- * @param maxPages
- * maximum pages to keep in session
- */
- public InSessionPageStore(IPageStore delegate, int maxPages)
- {
- this(delegate, maxPages, null);
+ this(null, () -> new SizeLimitedData(maxBytes));
}
/**
@@ -114,26 +86,20 @@ public class InSessionPageStore extends
DelegatingPageStore
* If the container serializes sessions to disk, any non-{@code
SerializedPage} added to this
* store will be automatically serialized.
*
- * @param delegate
- * store to delegate to
* @param maxPages
* maximum pages to keep in session
* @param serializer
- * optional serializer used only in case session
serialization
+ * optional serializer used only in case session
serialization
*/
- public InSessionPageStore(IPageStore delegate, int maxPages,
ISerializer serializer)
+ public InSessionPageStore(int maxPages, ISerializer serializer)
{
- this(delegate, serializer, KEY_CACHE, () -> new
CountLimitedData(maxPages));
+ this(serializer, () -> new CountLimitedData(maxPages));
}
- private InSessionPageStore(IPageStore delegate, ISerializer
serializer, MetaDataKey<SessionData> key, Supplier<SessionData> dataCreator)
+ private InSessionPageStore(ISerializer serializer,
Supplier<SessionData> dataCreator)
{
- super(delegate);
-
this.serializer = serializer;
- this.key = key;
-
this.dataCreator = dataCreator;
}
@@ -150,7 +116,7 @@ public class InSessionPageStore extends
DelegatingPageStore
}
}
- return getDelegate().getPage(context, id);
+ return null;
}
@Override
@@ -159,8 +125,6 @@ public class InSessionPageStore extends
DelegatingPageStore
SessionData data = getSessionData(context, true);
data.add(page);
-
- getDelegate().addPage(context, page);
}
@Override
@@ -171,8 +135,6 @@ public class InSessionPageStore extends
DelegatingPageStore
{
data.remove(page.getPageId());
}
-
- getDelegate().removePage(context, page);
}
@Override
@@ -183,13 +145,11 @@ public class InSessionPageStore extends
DelegatingPageStore
{
data.removeAll();
}
-
- getDelegate().removeAllPages(context);
}
private SessionData getSessionData(IPageContext context, boolean
create)
{
- SessionData data = context.getSessionData(key, () -> {
+ SessionData data = context.getSessionData(getKey(), () -> {
if (create)
{
return dataCreator.get();
@@ -210,10 +170,22 @@ public class InSessionPageStore extends
DelegatingPageStore
}
/**
+ * Session data is stored under a {@link MetaDataKey}.
+ * <p>
+ * In cases where more than one instance is used in an application
(e.g. as a fast cache
+ * <em>and</em> a persistent store of serialized pages in the
session), this method has to be
+ * overridden to provide a separate key for each instance.
+ */
+ protected MetaDataKey<SessionData> getKey()
+ {
+ return KEY;
+ }
+
+ /**
* Data kept in the {@link Session}, might get serialized along
with its containing
* {@link HttpSession}.
*/
- abstract static class SessionData implements Serializable
+ protected abstract static class SessionData implements Serializable
{
transient ISerializer serializer;
@@ -402,4 +374,10 @@ public class InSessionPageStore extends
DelegatingPageStore
size = 0;
}
}
+
+ @Override
+ public boolean supportsVersioning()
+ {
+ return false;
+ }
}
diff --git
a/wicket-core/src/test/java/org/apache/wicket/DefaultPageManagerProviderTest.java
b/wicket-core/src/test/java/org/apache/wicket/DefaultPageManagerProviderTest.java
index 5adad4d..7696d9f 100644
---
a/wicket-core/src/test/java/org/apache/wicket/DefaultPageManagerProviderTest.java
+++
b/wicket-core/src/test/java/org/apache/wicket/DefaultPageManagerProviderTest.java
@@ -20,6 +20,7 @@ import static
org.junit.jupiter.api.Assertions.assertNotNull;
import org.apache.wicket.page.IPageManager;
import org.apache.wicket.pageStore.AsynchronousPageStore;
+import org.apache.wicket.pageStore.CachingPageStore;
import org.apache.wicket.pageStore.DiskPageStore;
import org.apache.wicket.pageStore.InSessionPageStore;
import org.apache.wicket.pageStore.RequestPageStore;
@@ -42,8 +43,9 @@ class DefaultPageManagerProviderTest extends
WicketTestCase
IPageManager manager = new
DefaultPageManagerProvider(tester.getApplication()).get();
RequestPageStore request =
(RequestPageStore)manager.getPageStore();
- InSessionPageStore session =
(InSessionPageStore)request.getDelegate();
- AsynchronousPageStore asynchronous =
(AsynchronousPageStore)session.getDelegate();
+ CachingPageStore caching =
(CachingPageStore)request.getDelegate();
+ InSessionPageStore session =
(InSessionPageStore)caching.getCache();
+ AsynchronousPageStore asynchronous =
(AsynchronousPageStore)caching.getDelegate();
SerializingPageStore serializing =
(SerializingPageStore)asynchronous.getDelegate();
DiskPageStore disk =
(DiskPageStore)serializing.getDelegate();
diff --git
a/wicket-core/src/test/java/org/apache/wicket/core/request/mapper/TestMapperContext.java
b/wicket-core/src/test/java/org/apache/wicket/core/request/mapper/TestMapperContext.java
index 6f3be0f..1f163a2 100644
---
a/wicket-core/src/test/java/org/apache/wicket/core/request/mapper/TestMapperContext.java
+++
b/wicket-core/src/test/java/org/apache/wicket/core/request/mapper/TestMapperContext.java
@@ -23,7 +23,9 @@ import org.apache.wicket.markup.MarkupParser;
import org.apache.wicket.mock.MockPageContext;
import org.apache.wicket.page.IPageManager;
import org.apache.wicket.page.PageManager;
+import org.apache.wicket.pageStore.CachingPageStore;
import org.apache.wicket.pageStore.IPageContext;
+import org.apache.wicket.pageStore.IPageStore;
import org.apache.wicket.pageStore.InMemoryPageStore;
import org.apache.wicket.pageStore.InSessionPageStore;
import org.apache.wicket.pageStore.RequestPageStore;
@@ -44,7 +46,7 @@ public class TestMapperContext implements IMapperContext
private static final String APP_NAME = "test_app";
private static int count;
- InSessionPageStore pageStore;
+ IPageStore pageStore;
MockPageContext pageContext;
IPageManager pageManager;
private String appName;
@@ -60,7 +62,8 @@ public class TestMapperContext implements IMapperContext
pageContext = new MockPageContext();
InMemoryPageStore inMemoryPageStore = new
InMemoryPageStore(appName, Integer.MAX_VALUE);
- pageStore = new InSessionPageStore(inMemoryPageStore, 4,
new JavaSerializer(appName));
+ InSessionPageStore inSessionPageStore = new
InSessionPageStore(4, new JavaSerializer(appName));
+ pageStore = new CachingPageStore(inMemoryPageStore,
inSessionPageStore);
pageManager = new PageManager(new
RequestPageStore(pageStore)) {
@Override
protected IPageContext createPageContext()
diff --git
a/wicket-core/src/test/java/org/apache/wicket/page/PersistentPageManagerTest.java
b/wicket-core/src/test/java/org/apache/wicket/page/PersistentPageManagerTest.java
index 77bb7f0..300f18b 100644
---
a/wicket-core/src/test/java/org/apache/wicket/page/PersistentPageManagerTest.java
+++
b/wicket-core/src/test/java/org/apache/wicket/page/PersistentPageManagerTest.java
@@ -105,7 +105,7 @@ class PersistentPageManagerTest
*/
private IPageManager createPageManager(String appName,
AtomicReference<Object> sessionData)
{
- IPageStore store = new InSessionPageStore(new
NoopPageStore(), Integer.MAX_VALUE, new JavaSerializer(APP_NAME));
+ IPageStore store = new
InSessionPageStore(Integer.MAX_VALUE, new JavaSerializer(APP_NAME));
return new PageManager(store) {
@Override
diff --git
a/wicket-core/src/test/java/org/apache/wicket/pageStore/InSessionPageStoreTest.java
b/wicket-core/src/test/java/org/apache/wicket/pageStore/InSessionPageStoreTest.java
index 301a33c..6bd00a5 100644
---
a/wicket-core/src/test/java/org/apache/wicket/pageStore/InSessionPageStoreTest.java
+++
b/wicket-core/src/test/java/org/apache/wicket/pageStore/InSessionPageStoreTest.java
@@ -16,15 +16,31 @@
*/
package org.apache.wicket.pageStore;
+import org.apache.wicket.MetaDataKey;
+import org.apache.wicket.pageStore.InSessionPageStore.SessionData;
+
/**
* Test for {@link InSessionPageStore}.
*/
public class InSessionPageStoreTest extends AbstractPageStoreTest
{
+
+ private static final MetaDataKey<SessionData> KEY = new
MetaDataKey<SessionData>()
+ {
+ private static final long serialVersionUID = 1L;
+ };
+
@Override
protected IPageStore createPageStore(int maxEntries)
{
- return new InSessionPageStore(new NoopPageStore(),
maxEntries);
+ return new InSessionPageStore(maxEntries) {
+
+ @Override
+ protected MetaDataKey<SessionData> getKey()
+ {
+ return KEY;
+ }
+ };
}
}
diff --git
a/wicket-core/src/test/java/org/apache/wicket/versioning/PageVersioningTest.java
b/wicket-core/src/test/java/org/apache/wicket/versioning/PageVersioningTest.java
index 3842780..e882bab 100644
---
a/wicket-core/src/test/java/org/apache/wicket/versioning/PageVersioningTest.java
+++
b/wicket-core/src/test/java/org/apache/wicket/versioning/PageVersioningTest.java
@@ -23,6 +23,7 @@ import org.apache.wicket.IPageManagerProvider;
import org.apache.wicket.Page;
import org.apache.wicket.page.IPageManager;
import org.apache.wicket.page.PageManager;
+import org.apache.wicket.pageStore.CachingPageStore;
import org.apache.wicket.pageStore.IPageStore;
import org.apache.wicket.pageStore.InMemoryPageStore;
import org.apache.wicket.pageStore.InSessionPageStore;
@@ -62,7 +63,8 @@ class PageVersioningTest
{
InMemoryPageStore inMemory = new
InMemoryPageStore("test", Integer.MAX_VALUE);
SerializingPageStore serializing =
new SerializingPageStore(inMemory, new JavaSerializer("test"));
- final IPageStore store = new
InSessionPageStore(serializing, Integer.MAX_VALUE);
+ InSessionPageStore session = new
InSessionPageStore(Integer.MAX_VALUE);
+ final IPageStore store = new
CachingPageStore(serializing, session);
return new PageManager(store);
};
}
