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new 50013f1 WW-5173 Example app using custom cache implementations
50013f1 is described below
commit 50013f1beb1b159d5e8fffc962d1bb1f929fbc0d
Author: Lukasz Lenart <[email protected]>
AuthorDate: Mon Aug 8 10:25:34 2022 +0200
WW-5173 Example app using custom cache implementations
---
expression-cache/pom.xml | 63 ++++++++++++++++++++++
.../java/org/apache/struts/cache/CustomOEC.java | 34 ++++++++++++
.../org/apache/struts/cache/CustomOECFactory.java | 56 +++++++++++++++++++
.../java/org/apache/struts/cache/CustomOELRUC.java | 37 +++++++++++++
.../java/org/apache/struts/cache/IndexAction.java | 25 +++++++++
expression-cache/src/main/resources/log4j2.xml | 33 ++++++++++++
expression-cache/src/main/resources/struts.xml | 54 +++++++++++++++++++
expression-cache/src/main/webapp/WEB-INF/index.jsp | 32 +++++++++++
expression-cache/src/main/webapp/WEB-INF/web.xml | 46 ++++++++++++++++
pom.xml | 1 +
10 files changed, 381 insertions(+)
diff --git a/expression-cache/pom.xml b/expression-cache/pom.xml
new file mode 100644
index 0000000..e7fb4d3
--- /dev/null
+++ b/expression-cache/pom.xml
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+/*
+* 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.
+*/
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
+ <modelVersion>4.0.0</modelVersion>
+
+ <parent>
+ <groupId>org.apache.struts</groupId>
+ <artifactId>struts-examples</artifactId>
+ <version>1.1.0</version>
+ </parent>
+
+ <artifactId>expression-cache</artifactId>
+ <packaging>war</packaging>
+ <name>Expression Cache</name>
+
+ <properties>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ <struts2.version>6.1.0-SNAPSHOT</struts2.version>
+ </properties>
+
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.eclipse.jetty</groupId>
+ <artifactId>jetty-maven-plugin</artifactId>
+ <version>${jetty-plugin.version}</version>
+ <configuration>
+ <webApp>
+ <contextPath>/${project.artifactId}</contextPath>
+ </webApp>
+ <stopKey>CTRL+C</stopKey>
+ <stopPort>8999</stopPort>
+ <scanIntervalSeconds>10</scanIntervalSeconds>
+ <scanTargets>
+
<scanTarget>src/main/webapp/WEB-INF/web.xml</scanTarget>
+ </scanTargets>
+ </configuration>
+ </plugin>
+ </plugins>
+ </build>
+
+</project>
diff --git
a/expression-cache/src/main/java/org/apache/struts/cache/CustomOEC.java
b/expression-cache/src/main/java/org/apache/struts/cache/CustomOEC.java
new file mode 100644
index 0000000..8aab971
--- /dev/null
+++ b/expression-cache/src/main/java/org/apache/struts/cache/CustomOEC.java
@@ -0,0 +1,34 @@
+/*
+ * 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.struts.cache;
+
+import com.opensymphony.xwork2.ognl.OgnlDefaultCache;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+public class CustomOEC extends OgnlDefaultCache<String, Object> {
+
+ private static final Logger LOG = LogManager.getLogger(CustomOEC.class);
+
+ public CustomOEC(int evictionLimit, int initialCapacity, float loadFactor)
{
+ super(evictionLimit, initialCapacity, loadFactor);
+ LOG.info("Custom cache has been created");
+ }
+
+}
diff --git
a/expression-cache/src/main/java/org/apache/struts/cache/CustomOECFactory.java
b/expression-cache/src/main/java/org/apache/struts/cache/CustomOECFactory.java
new file mode 100644
index 0000000..4a0ef75
--- /dev/null
+++
b/expression-cache/src/main/java/org/apache/struts/cache/CustomOECFactory.java
@@ -0,0 +1,56 @@
+/*
+ * 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.struts.cache;
+
+import com.opensymphony.xwork2.ognl.DefaultOgnlExpressionCacheFactory;
+import com.opensymphony.xwork2.ognl.OgnlCache;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+/**
+ * Placeholder custom OGNL expression cache factory
+ *
+ * Breakpoints:
+ * 1) OgnlUtil (Struts Core) - 1st line of constructor (to see what factory
references are passed in).
+ * 2) HelloWorldAction, IndexAction (S2_StarterApp_1) - 1st line of execute()
methods (to see what is returned from the container).
+ * 3) CustomOECFactory (S2_StarterApp_1) - every method to see if any get
called.
+ */
+public class CustomOECFactory extends
DefaultOgnlExpressionCacheFactory<String, Object> {
+
+ private static final Logger LOG =
LogManager.getLogger(CustomOECFactory.class);
+
+ public CustomOECFactory() {
+ LOG.info("Custom expression cache factory has been created");
+ }
+
+ @Override
+ public OgnlCache<String, Object> buildOgnlCache() {
+ return buildOgnlCache(getCacheMaxSize(), 16, 0.75f, getUseLRUCache());
+ }
+
+ @Override
+ public OgnlCache<String, Object> buildOgnlCache(int evictionLimit, int
initialCapacity, float loadFactor, boolean lruCache) {
+ if (lruCache) {
+ return new CustomOELRUC(evictionLimit, initialCapacity,
loadFactor);
+ } else {
+ return new CustomOEC(evictionLimit, initialCapacity, loadFactor);
+ }
+ }
+
+}
diff --git
a/expression-cache/src/main/java/org/apache/struts/cache/CustomOELRUC.java
b/expression-cache/src/main/java/org/apache/struts/cache/CustomOELRUC.java
new file mode 100644
index 0000000..342d64d
--- /dev/null
+++ b/expression-cache/src/main/java/org/apache/struts/cache/CustomOELRUC.java
@@ -0,0 +1,37 @@
+/*
+ * 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.struts.cache;
+
+import com.opensymphony.xwork2.ognl.OgnlLRUCache;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+/**
+ * Placeholder custom OGNL LRU cache
+ */
+public class CustomOELRUC extends OgnlLRUCache<String, Object> {
+
+ private static final Logger LOG = LogManager.getLogger(CustomOELRUC.class);
+
+ public CustomOELRUC(int evictionLimit, int initialCapacity, float
loadFactor) {
+ super(evictionLimit, initialCapacity, loadFactor);
+ LOG.info("Custom LRU cache has been created");
+ }
+
+}
diff --git
a/expression-cache/src/main/java/org/apache/struts/cache/IndexAction.java
b/expression-cache/src/main/java/org/apache/struts/cache/IndexAction.java
new file mode 100644
index 0000000..c033832
--- /dev/null
+++ b/expression-cache/src/main/java/org/apache/struts/cache/IndexAction.java
@@ -0,0 +1,25 @@
+/*
+ * 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.struts.cache;
+
+import com.opensymphony.xwork2.ActionSupport;
+
+public class IndexAction extends ActionSupport {
+
+}
diff --git a/expression-cache/src/main/resources/log4j2.xml
b/expression-cache/src/main/resources/log4j2.xml
new file mode 100644
index 0000000..2aab5ee
--- /dev/null
+++ b/expression-cache/src/main/resources/log4j2.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+/*
+* 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.
+*/
+-->
+<Configuration>
+ <Appenders>
+ <Console name="STDOUT" target="SYSTEM_OUT">
+ <PatternLayout pattern="[%p] %C{2} (%F:%L) - %m%n"/>
+ </Console>
+ </Appenders>
+ <Loggers>
+ <Root level="info">
+ <AppenderRef ref="STDOUT"/>
+ </Root>
+ </Loggers>
+</Configuration>
diff --git a/expression-cache/src/main/resources/struts.xml
b/expression-cache/src/main/resources/struts.xml
new file mode 100644
index 0000000..f531ce5
--- /dev/null
+++ b/expression-cache/src/main/resources/struts.xml
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!--
+/*
+* 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.
+*/
+-->
+<!DOCTYPE struts PUBLIC
+ "-//Apache Software Foundation//DTD Struts Configuration 6.0//EN"
+ "http://struts.apache.org/dtds/struts-6.0.dtd";>
+
+<struts>
+
+ <constant name="struts.devMode" value="true"/>
+ <constant name="struts.enable.DynamicMethodInvocation" value="false"/>
+
+ <!-- Set expression and BeanInfo caches to size 1000 with LRU cache mode
-->
+ <constant name="struts.ognl.expressionCacheMaxSize" value="1000"/>
+ <constant name="struts.ognl.expressionCacheLRUMode" value="true"/>
+ <constant name="struts.ognl.beanInfoCacheMaxSize" value="1000"/>
+ <constant name="struts.ognl.beanInfoCacheLRUMode" value="true"/>
+
+ <bean type="com.opensymphony.xwork2.ognl.ExpressionCacheFactory"
+ class="org.apache.struts.cache.CustomOECFactory"
+ name="customOgnlExpressionCacheFactory"
+ scope="singleton"/>
+
+ <constant name="struts.ognl.expressionCacheFactory"
value="customOgnlExpressionCacheFactory"/>
+
+ <package name="default" extends="struts-default">
+
+ <default-action-ref name="index"/>
+
+ <action name="index">
+ <result>/WEB-INF/index.jsp</result>
+ </action>
+
+ </package>
+
+</struts>
diff --git a/expression-cache/src/main/webapp/WEB-INF/index.jsp
b/expression-cache/src/main/webapp/WEB-INF/index.jsp
new file mode 100644
index 0000000..3051fff
--- /dev/null
+++ b/expression-cache/src/main/webapp/WEB-INF/index.jsp
@@ -0,0 +1,32 @@
+<%--
+/*
+* 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.
+*/
+--%>
+
+<%@ page contentType="text/html; charset=UTF-8" %>
+<%@ taglib prefix="s" uri="/struts-tags" %>
+<html>
+<head>
+ <title>Cache Expression</title>
+</head>
+
+<body>
+<h1>It works!</h1>
+</body>
+</html>
diff --git a/expression-cache/src/main/webapp/WEB-INF/web.xml
b/expression-cache/src/main/webapp/WEB-INF/web.xml
new file mode 100644
index 0000000..d830047
--- /dev/null
+++ b/expression-cache/src/main/webapp/WEB-INF/web.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+/*
+* 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.
+*/
+-->
+<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee";
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+ xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
+ http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd";
+ version="3.1">
+
+ <display-name>Struts 2 - Expression Cache</display-name>
+
+ <filter>
+ <filter-name>struts2</filter-name>
+ <filter-class>
+ org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter
+ </filter-class>
+ </filter>
+
+ <filter-mapping>
+ <filter-name>struts2</filter-name>
+ <url-pattern>/*</url-pattern>
+ </filter-mapping>
+
+ <welcome-file-list>
+ <welcome-file>index.jsp</welcome-file>
+ </welcome-file-list>
+
+</web-app>
diff --git a/pom.xml b/pom.xml
index 7b57590..761c563 100644
--- a/pom.xml
+++ b/pom.xml
@@ -82,6 +82,7 @@
<module>dynamic-href</module>
<module>exception-handling</module>
<module>exclude-parameters</module>
+ <module>expression-cache</module>
<module>file-upload</module>
<module>form-processing</module>
<module>form-tags</module>
