Fixes issue #3500 - Add IsolatedWebAppFeature (#3503)

feature/isolatedwebapp/pom.xml

@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<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/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>cloud.piranha.feature</groupId>
+        <artifactId>project</artifactId>
+        <version>23.9.0-SNAPSHOT</version>
+    </parent>
+    <artifactId>piranha-feature-isolatedwebapp</artifactId>
+    <packaging>jar</packaging>
+    <name>Piranha - Feature - Isolated WebApp</name>
+    <dependencies>
+        <dependency>
+            <groupId>cloud.piranha.feature</groupId>
+            <artifactId>piranha-feature-webapp</artifactId>
+            <version>${project.version}</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>cloud.piranha.micro</groupId>
+            <artifactId>piranha-micro-builder</artifactId>
+            <version>${project.version}</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>cloud.piranha.micro</groupId>
+            <artifactId>piranha-micro-loader</artifactId>
+            <version>${project.version}</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.jboss.shrinkwrap.descriptors</groupId>
+            <artifactId>shrinkwrap-descriptors-api-base</artifactId>
+            <scope>compile</scope>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.jboss.shrinkwrap.resolver</groupId>
+            <artifactId>shrinkwrap-resolver-api-maven</artifactId>
+            <scope>compile</scope>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.jboss.shrinkwrap.resolver</groupId>
+            <artifactId>shrinkwrap-resolver-impl-maven</artifactId>
+            <scope>compile</scope>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.jboss.shrinkwrap.resolver</groupId>
+            <artifactId>shrinkwrap-resolver-impl-maven-archive</artifactId>
+            <scope>compile</scope>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.jboss.shrinkwrap.resolver</groupId>
+            <artifactId>shrinkwrap-resolver-spi</artifactId>
+            <scope>compile</scope>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-params</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>

feature/isolatedwebapp/src/main/java/cloud/piranha/feature/isolatedwebapp/IsolatedWebAppFeature.java

@@ -0,0 +1,142 @@
+/*
+ * Copyright (c) 2002-2023 Manorrock.com. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice,
+ *      this list of conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *   3. Neither the name of the copyright holder nor the names of its
+ *      contributors may be used to endorse or promote products derived from
+ *      this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+package cloud.piranha.feature.isolatedwebapp;
+
+import cloud.piranha.feature.impl.DefaultFeature;
+import cloud.piranha.http.webapp.HttpWebApplicationServer;
+import cloud.piranha.micro.builder.MicroWebApplication;
+import cloud.piranha.micro.loader.MicroConfiguration;
+import cloud.piranha.micro.loader.MicroOuterDeployer;
+import java.io.File;
+import java.lang.System.Logger;
+import static java.lang.System.Logger.Level.ERROR;
+import org.jboss.shrinkwrap.api.ShrinkWrap;
+import org.jboss.shrinkwrap.api.importer.ZipImporter;
+import org.jboss.shrinkwrap.api.spec.WebArchive;
+/**
+ * The Isolated WebApp feature.
+ *
+ * @author Manfred Riem (mriem@manorrock.com)
+ */
+public class IsolatedWebAppFeature extends DefaultFeature {
+
+    /**
+     * Stores the logger.
+     */
+    private static final Logger LOGGER = System.getLogger(IsolatedWebAppFeature.class.getName());
+
+    /**
+     * Stores the HttpWebApplicationServer.
+     */
+    private HttpWebApplicationServer httpWebApplicationServer;
+
+    /**
+     * Stores the WAR file.
+     */
+    private File warFile;
+
+    /**
+     * Get the HttpWebApplicationServer.
+     *
+     * @return the HttpWebApplicationServer.
+     */
+    public HttpWebApplicationServer getHttpWebApplicationServer() {
+        return httpWebApplicationServer;
+    }
+
+    /**
+     * Get the context path.
+     *
+     * @param warFile the WAR file.
+     * @return the context path.
+     */
+    private String getContextPath(File warFile) {
+        String contextPath = warFile.getName().substring(0, warFile.getName().length() - 4);
+
+        if (contextPath.equalsIgnoreCase("ROOT")) {
+            contextPath = "";
+        } else if (!contextPath.startsWith("/")) {
+            contextPath = "/" + contextPath;
+        }
+
+        return contextPath;
+    }
+
+    /**
+     * Get the WAR file.
+     *
+     * @return the WAR file.
+     */
+    public File getWarFile() {
+        return warFile;
+    }
+
+    @Override
+    public void init() {
+        deploy(warFile, httpWebApplicationServer);
+    }
+
+    private void deploy(File warFile, HttpWebApplicationServer webApplicationServer) {
+        String contextPath = getContextPath(warFile);
+
+        MicroConfiguration configuration = new MicroConfiguration();
+        configuration.setContextPath(contextPath);
+        configuration.setHttpStart(false);
+
+        try {
+            MicroWebApplication microWebApplication = new MicroWebApplication();
+            microWebApplication.setContextPath(contextPath);
+            microWebApplication.setDeployedApplication(
+                    new MicroOuterDeployer(configuration.postConstruct())
+                            .deploy(ShrinkWrap.create(ZipImporter.class, warFile.getName()).importFrom(warFile).as(WebArchive.class))
+                            .getDeployedApplication());
+
+            webApplicationServer.addWebApplication(microWebApplication);
+        } catch (Exception e) {
+            LOGGER.log(ERROR, () -> "Failed to initialize web application at " + contextPath, e);
+        }
+    }
+
+    /**
+     * Set the HttpWebApplicationServer.
+     *
+     * @param httpWebApplicationServer the HttpWebApplicationServer.
+     */
+    public void setHttpWebApplicationServer(HttpWebApplicationServer httpWebApplicationServer) {
+        this.httpWebApplicationServer = httpWebApplicationServer;
+    }
+
+    /**
+     * Set the WAR file.
+     *
+     * @param warFile the WAR file.
+     */
+    public void setWarFile(File warFile) {
+        this.warFile = warFile;
+    }
+}

feature/isolatedwebapp/src/main/java/module-info.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2002-2023 Manorrock.com. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice,
+ *      this list of conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *   3. Neither the name of the copyright holder nor the names of its
+ *      contributors may be used to endorse or promote products derived from
+ *      this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * This module delivers the Isolated WebApp Feature.
+ * 
+ * @author Manfred Riem (mriem@manorrock.com)
+ */
+module cloud.piranha.feature.isolatedwebapp {
+
+    exports cloud.piranha.feature.isolatedwebapp;
+    opens cloud.piranha.feature.isolatedwebapp;    
+    requires cloud.piranha.feature.impl;
+    requires cloud.piranha.http.webapp;
+    requires cloud.piranha.micro.builder;
+    requires cloud.piranha.micro.loader;
+    requires shrinkwrap.api;
+    requires shrinkwrap.resolver.api.maven;
+}

feature/pom.xml

@@ -22,6 +22,7 @@
         <module>http</module>
         <module>https</module>
         <module>impl</module>
+        <module>isolatedwebapp</module>
         <module>logging</module>
         <module>webapp</module>
         <module>webapps</module>