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diff --git a/branches/sca-java-1.0/modules/host-webapp/DISCLAIMER b/branches/sca-java-1.0/modules/host-webapp/DISCLAIMER new file mode 100644 index 0000000000..d68a410903 --- /dev/null +++ b/branches/sca-java-1.0/modules/host-webapp/DISCLAIMER @@ -0,0 +1,8 @@ +Apache Tuscany is an effort undergoing incubation at The Apache Software
+Foundation (ASF), sponsored by the Apache Web Services PMC. Incubation is
+required of all newly accepted projects until a further review indicates that
+the infrastructure, communications, and decision making process have stabilized
+in a manner consistent with other successful ASF projects. While incubation
+status is not necessarily a reflection of the completeness or stability of the
+code, it does indicate that the project has yet to be fully endorsed by the ASF.
+
diff --git a/branches/sca-java-1.0/modules/host-webapp/LICENSE b/branches/sca-java-1.0/modules/host-webapp/LICENSE new file mode 100644 index 0000000000..8aa906c321 --- /dev/null +++ b/branches/sca-java-1.0/modules/host-webapp/LICENSE @@ -0,0 +1,205 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. 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If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed 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. + + + diff --git a/branches/sca-java-1.0/modules/host-webapp/NOTICE b/branches/sca-java-1.0/modules/host-webapp/NOTICE new file mode 100644 index 0000000000..94481d6cfa --- /dev/null +++ b/branches/sca-java-1.0/modules/host-webapp/NOTICE @@ -0,0 +1,6 @@ +${pom.name} +Copyright (c) 2005 - 2007 The Apache Software Foundation + +This product includes software developed by +The Apache Software Foundation (http://www.apache.org/). + diff --git a/branches/sca-java-1.0/modules/host-webapp/pom.xml b/branches/sca-java-1.0/modules/host-webapp/pom.xml new file mode 100644 index 0000000000..73db21800e --- /dev/null +++ b/branches/sca-java-1.0/modules/host-webapp/pom.xml @@ -0,0 +1,59 @@ +<?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> + <modelVersion>4.0.0</modelVersion> + <parent> + <groupId>org.apache.tuscany.sca</groupId> + <artifactId>tuscany-modules</artifactId> + <version>1.0-incubating-SNAPSHOT</version> + <relativePath>../pom.xml</relativePath> + </parent> + + <artifactId>tuscany-host-webapp</artifactId> + <name>Apache Tuscany SCA Webapp Host</name> + + <dependencies> + <dependency> + <groupId>org.apache.tuscany.sca</groupId> + <artifactId>tuscany-contribution-impl</artifactId> + <version>1.0-incubating-SNAPSHOT</version> + </dependency> + + <dependency> + <groupId>org.apache.tuscany.sca</groupId> + <artifactId>tuscany-host-http</artifactId> + <version>1.0-incubating-SNAPSHOT</version> + </dependency> + + <dependency> + <groupId>org.apache.tuscany.sca</groupId> + <artifactId>tuscany-host-embedded</artifactId> + <version>1.0-incubating-SNAPSHOT</version> + </dependency> + + <dependency> + <groupId>javax.servlet</groupId> + <artifactId>servlet-api</artifactId> + <version>2.4</version> <!-- to keep compatible with older servlet containers --> + <scope>provided</scope> + </dependency> + + </dependencies> +</project> diff --git a/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/HotUpdateContextListener.java b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/HotUpdateContextListener.java new file mode 100644 index 0000000000..e6300c81b9 --- /dev/null +++ b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/HotUpdateContextListener.java @@ -0,0 +1,55 @@ +/* + * 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.tuscany.sca.host.webapp; + +import java.io.File; + +import javax.servlet.ServletContext; +import javax.servlet.ServletContextEvent; + +import org.apache.tuscany.sca.host.embedded.impl.HotUpdatableSCADomain; + +/** + * A WebApp ContextListener that starts a Tuscany runtime supporting multiple + * SCA contribution jars. All contribution jars found in the repository + * directory named "sca-contributions" will be contributed to the SCA + * domain. Any changes to the contributions in the repository will be + * automatically detected and the sca domain updated accordingly. + */ +public class HotUpdateContextListener extends TuscanyContextListener { + + public static final String REPOSITORY_FOLDER_NAME = "sca-contributions"; + + @Override + public void contextInitialized(ServletContextEvent event) { + ServletContext servletContext = event.getServletContext(); + + // TODO better domaiURI, maybe based on webapp name? + String domainURI = "http://localhost/" + servletContext.getServletContextName().replace(' ', '.'); + + File repository = new File(servletContext.getRealPath(REPOSITORY_FOLDER_NAME)); + HotUpdatableSCADomain scaDomain = new HotUpdatableSCADomain(domainURI, repository, 2000); + + servletContext.setAttribute(SCADomainHelper.SCA_DOMAIN_ATTRIBUTE, scaDomain); + + super.contextInitialized(event); + } + +} diff --git a/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/SCADomainHelper.java b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/SCADomainHelper.java new file mode 100644 index 0000000000..7de0d48db5 --- /dev/null +++ b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/SCADomainHelper.java @@ -0,0 +1,71 @@ +/* + * 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.tuscany.sca.host.webapp; + +import java.io.File; +import java.net.MalformedURLException; +import java.net.URL; + +import javax.servlet.ServletContext; + +import org.apache.tuscany.sca.host.embedded.SCADomain; + +/** + * Utility class to initialize the SCADomian associated with a webapp + * + * @deprecated Not necessary anymore with TuscanyServletFilter + */ +@Deprecated +public class SCADomainHelper { + + static final String SCA_DOMAIN_ATTRIBUTE = "org.apache.tuscany.sca.SCADomain"; + + /** + * Initializes the SCADomian associated with a webapp context. If a SCADomain + * doesn't exist already then one is create based on the webapp config. + */ + static SCADomain initSCADomain(ServletContext servletContext) { + SCADomain scaDomain = (SCADomain)servletContext.getAttribute(SCA_DOMAIN_ATTRIBUTE); + + String domainURI = "http://localhost/" + servletContext.getServletContextName().replace(' ', '.'); + String contributionRoot = null; + + try { + URL rootURL = servletContext.getResource("/"); + if (rootURL.getProtocol().equals("jndi")) { + //this is tomcat case, we should use getRealPath + File warRootFile = new File(servletContext.getRealPath("/")); + contributionRoot = warRootFile.toURL().toString(); + } else { + //this is jetty case + contributionRoot = rootURL.toString(); + } + } catch(MalformedURLException mf) { + //ignore, pass null + } + + + if (scaDomain == null) { + scaDomain = SCADomain.newInstance(domainURI, contributionRoot); + servletContext.setAttribute(SCA_DOMAIN_ATTRIBUTE, scaDomain); + } + return scaDomain; + } +} diff --git a/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyContextListener.java b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyContextListener.java new file mode 100644 index 0000000000..d64a6209c8 --- /dev/null +++ b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyContextListener.java @@ -0,0 +1,54 @@ +/* + * 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.tuscany.sca.host.webapp; + +import javax.servlet.ServletContext; +import javax.servlet.ServletContextEvent; +import javax.servlet.ServletContextListener; + +import org.apache.tuscany.sca.host.embedded.SCADomain; + +/** + * A ServletContextListener to create and close the SCADomain + * when the webapp is initialized or destroyed. + * + * @deprecated Not needed anymore, TuscanyServletFilter is sufficient + */ +@Deprecated +public class TuscanyContextListener implements ServletContextListener { + + public void contextInitialized(ServletContextEvent event) { + ServletContext servletContext = event.getServletContext(); + try { + SCADomainHelper.initSCADomain(servletContext); + } catch (Throwable e) { + servletContext.log("exception initializing SCADomain", e); + } + } + + public void contextDestroyed(ServletContextEvent event) { + ServletContext servletContext = event.getServletContext(); + SCADomain scaDomain = (SCADomain) servletContext.getAttribute(SCADomainHelper.SCA_DOMAIN_ATTRIBUTE); + if (scaDomain != null) { + scaDomain.close(); + } + } + +} diff --git a/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyServlet.java b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyServlet.java new file mode 100644 index 0000000000..c2d8826ffc --- /dev/null +++ b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyServlet.java @@ -0,0 +1,66 @@ +/* + * 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.tuscany.sca.host.webapp; + +import java.io.IOException; + +import javax.servlet.RequestDispatcher; +import javax.servlet.ServletConfig; +import javax.servlet.ServletContext; +import javax.servlet.ServletException; +import javax.servlet.ServletRequest; +import javax.servlet.ServletResponse; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; + +/** + * A servlet that forwards requests to the servlets registered with the Tuscany + * ServletHost. + * + * @deprecated Not needed anymore, TuscanyServletFilter is sufficient + */ +@Deprecated +public class TuscanyServlet extends HttpServlet { + private static final long serialVersionUID = 1L; + + private transient WebAppServletHost servletHost; + + @Override + public void init(ServletConfig config) throws ServletException { + ServletContext servletContext = config.getServletContext(); + SCADomainHelper.initSCADomain(servletContext); + + // TODO: must be a better way to get this than using a static + servletHost = WebAppServletHost.getInstance(); + servletHost.init(config); + } + + @Override + public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException { + String path = ((HttpServletRequest)req).getPathInfo(); + RequestDispatcher dispatcher = servletHost.getRequestDispatcher(path); + if (dispatcher == null) { + throw new IllegalStateException("No servlet registered for path: " + path); + } + + dispatcher.forward(req, res); + } + +} diff --git a/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyServletFilter.java b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyServletFilter.java new file mode 100644 index 0000000000..f4e33c954f --- /dev/null +++ b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyServletFilter.java @@ -0,0 +1,97 @@ +/* + * 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.tuscany.sca.host.webapp; + +import java.io.IOException; +import java.util.Enumeration; + +import javax.servlet.Filter; +import javax.servlet.FilterConfig; +import javax.servlet.RequestDispatcher; +import javax.servlet.ServletConfig; +import javax.servlet.ServletContext; +import javax.servlet.ServletException; +import javax.servlet.ServletRequest; +import javax.servlet.ServletResponse; +import javax.servlet.http.HttpServletRequest; + +/** + * A servlet filter that forwards service requests to the servlets registered with + * the Tuscany ServletHost. + */ +public class TuscanyServletFilter implements Filter { + private static final long serialVersionUID = 1L; + //private static final Logger logger = Logger.getLogger(WebAppServletHost.class.getName()); + + private WebAppServletHost servletHost; + + public void init(final FilterConfig config) throws ServletException { + + // TODO: must be a better way to get this than using a static + servletHost = WebAppServletHost.getInstance(); + + // Initialize the servlet host + servletHost.init(new ServletConfig() { + public String getInitParameter(String name) { + return config.getInitParameter(name); + } + public Enumeration getInitParameterNames() { + return config.getInitParameterNames(); + } + public ServletContext getServletContext() { + return config.getServletContext(); + } + public String getServletName() { + return config.getFilterName(); + } + }); + } + + public void destroy() { + WebAppServletHost.getInstance().destroy(); + } + + public void doFilter(ServletRequest request, ServletResponse response, javax.servlet.FilterChain chain) throws IOException ,ServletException { + + // Get the servlet path + HttpServletRequest httpRequest = (HttpServletRequest)request; + String path = httpRequest.getPathInfo(); + if (path == null) { + path = httpRequest.getServletPath(); + } + if (path == null) { + path = "/"; + } + + // Get a request dispatcher for the servlet mapped to that path + RequestDispatcher dispatcher = servletHost.getRequestDispatcher(path); + if (dispatcher != null) { + + // Let the dispatcher forward the request to the servlet + dispatcher.forward(request, response); + + } else { + + // Proceed down the filter chain + chain.doFilter(request, response); + + } + } +} diff --git a/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/WebAppModuleActivator.java b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/WebAppModuleActivator.java new file mode 100644 index 0000000000..09b11145d6 --- /dev/null +++ b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/WebAppModuleActivator.java @@ -0,0 +1,42 @@ +/* + * 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.tuscany.sca.host.webapp; + +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.ModuleActivator; +import org.apache.tuscany.sca.host.http.ServletHostExtensionPoint; + +/** + * Activates the webapp host by registering the webapp ServletHost impl + */ +public class WebAppModuleActivator implements ModuleActivator { + + public void start(ExtensionPointRegistry extensionPointRegistry) { + + ServletHostExtensionPoint servletHosts = + extensionPointRegistry.getExtensionPoint(ServletHostExtensionPoint.class); + + servletHosts.addServletHost(WebAppServletHost.getInstance()); + } + + public void stop(ExtensionPointRegistry registry) { + } + +} diff --git a/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/WebAppRequestDispatcher.java b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/WebAppRequestDispatcher.java new file mode 100644 index 0000000000..c3adf433b4 --- /dev/null +++ b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/WebAppRequestDispatcher.java @@ -0,0 +1,87 @@ +/* + * 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.tuscany.sca.host.webapp; + +import java.io.IOException; + +import javax.servlet.RequestDispatcher; +import javax.servlet.Servlet; +import javax.servlet.ServletException; +import javax.servlet.ServletRequest; +import javax.servlet.ServletResponse; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletRequestWrapper; + +/** + * A servlet request dispatcher that can be used to delegate requests to a + * serlvet registered with the Webapp servlet host. + */ +class WebAppRequestDispatcher implements RequestDispatcher { + private String servletPath; + private Servlet servlet; + + public WebAppRequestDispatcher(String mapping, Servlet servlet) { + if (mapping.endsWith("*")) { + mapping = mapping.substring(0, mapping.length()-1); + } + if (mapping.endsWith("/")) { + mapping = mapping.substring(0, mapping.length()-1); + } + this.servletPath = mapping; + this.servlet = servlet; + } + + /** + * Returns a request wrapper which will return the correct servlet path + * and path info. + * + * @param request + * @return + */ + private HttpServletRequest createRequestWrapper(ServletRequest request) { + HttpServletRequest requestWrapper = new HttpServletRequestWrapper((HttpServletRequest)request) { + + @Override + public String getServletPath() { + return servletPath; + } + + @Override + public String getPathInfo() { + String path = super.getServletPath(); + if (path.length() == 0) { + path = super.getPathInfo(); + } + path = path.substring(servletPath.length()); + return path; + } + }; + return requestWrapper; + } + + public void forward(ServletRequest request, ServletResponse response) throws ServletException, IOException { + servlet.service(createRequestWrapper(request), response); + } + + public void include(ServletRequest request, ServletResponse response) throws ServletException, IOException { + servlet.service(createRequestWrapper(request), response); + } +} + diff --git a/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/WebAppServletHost.java b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/WebAppServletHost.java new file mode 100644 index 0000000000..48000519fb --- /dev/null +++ b/branches/sca-java-1.0/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/WebAppServletHost.java @@ -0,0 +1,213 @@ +/* + * 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.tuscany.sca.host.webapp; + +import java.io.File; +import java.lang.reflect.Method; +import java.net.MalformedURLException; +import java.net.URI; +import java.net.URL; +import java.util.Collections; +import java.util.HashMap; +import java.util.Map; +import java.util.logging.Logger; + +import javax.servlet.RequestDispatcher; +import javax.servlet.Servlet; +import javax.servlet.ServletConfig; +import javax.servlet.ServletContext; +import javax.servlet.ServletException; + +import org.apache.tuscany.sca.host.embedded.SCADomain; +import org.apache.tuscany.sca.host.http.ServletHost; +import org.apache.tuscany.sca.host.http.ServletMappingException; + +/** + * ServletHost implementation for use in a webapp environment. + * + * FIXME: using a static singleton seems a big hack but how should it be shared? + * Need some way for TuscanyServlet to pull it out. + */ +public class WebAppServletHost implements ServletHost { + private static final Logger logger = Logger.getLogger(WebAppServletHost.class.getName()); + + private static final String SCA_DOMAIN_ATTRIBUTE = "org.apache.tuscany.sca.SCADomain"; + + private static final WebAppServletHost instance = new WebAppServletHost(); + + private Map<String, Servlet> servlets; + private SCADomain scaDomain; + + private String contextPath; + + private WebAppServletHost() { + servlets = new HashMap<String, Servlet>(); + } + + public void addServletMapping(String suri, Servlet servlet) throws ServletMappingException { + URI pathURI = URI.create(suri); + + // Make sure that the path starts with a / + suri = pathURI.getPath(); + if (!suri.startsWith("/")) { + suri = '/' + suri; + } + + // In a webapp just use the given path and ignore the host and port + // as they are fixed by the Web container + servlets.put(suri, servlet); + + logger.info("addServletMapping: " + suri); + } + + public Servlet removeServletMapping(String suri) throws ServletMappingException { + URI pathURI = URI.create(suri); + + // Make sure that the path starts with a / + suri = pathURI.getPath(); + if (!suri.startsWith("/")) { + suri = '/' + suri; + } + + // In a webapp just use the given path and ignore the host and port + // as they are fixed by the Web container + return servlets.remove(suri); + } + + public Servlet getServletMapping(String suri) throws ServletMappingException { + if (!suri.startsWith("/")) { + suri = '/' + suri; + } + + // Get the servlet mapped to the given path + Servlet servlet = servlets.get(suri); + return servlet; + } + + public RequestDispatcher getRequestDispatcher(String suri) throws ServletMappingException { + + // Make sure that the path starts with a / + if (!suri.startsWith("/")) { + suri = '/' + suri; + } + + // Get the servlet mapped to the given path + Servlet servlet = servlets.get(suri); + if (servlet != null) { + return new WebAppRequestDispatcher(suri, servlet); + } + for (Map.Entry<String, Servlet> entry : servlets.entrySet()) { + String servletPath = entry.getKey(); + if (servletPath.endsWith("*")) { + servletPath = servletPath.substring(0, servletPath.length() -1); + if (suri.startsWith(servletPath)) { + return new WebAppRequestDispatcher(entry.getKey(), entry.getValue()); + } else { + if ((suri + "/").startsWith(servletPath)) { + return new WebAppRequestDispatcher(entry.getKey(), entry.getValue()); + } + } + } + } + + // No servlet found + return null; + } + + static WebAppServletHost getInstance() { + return instance; + } + + void init(ServletConfig config) throws ServletException { + + initContextPath(config); + + // Create an SCA domain object + ServletContext servletContext = config.getServletContext(); + String domainURI = "http://localhost/" + servletContext.getServletContextName().replace(' ', '.'); + String contributionRoot = null; + try { + URL rootURL = servletContext.getResource("/"); + if (rootURL.getProtocol().equals("jndi")) { + //this is tomcat case, we should use getRealPath + File warRootFile = new File(servletContext.getRealPath("/")); + contributionRoot = warRootFile.toURL().toString(); + } else { + //this is jetty case + contributionRoot = rootURL.toString(); + } + } catch(MalformedURLException mf) { + //ignore, pass null + } + scaDomain = SCADomain.newInstance(domainURI, contributionRoot); + + // Store the SCA domain in the servlet context + servletContext.setAttribute(SCA_DOMAIN_ATTRIBUTE, scaDomain); + + // Initialize the registered servlets + for (Servlet servlet : servlets.values()) { + servlet.init(config); + } + } + + /** + * Initializes the contextPath + * The 2.5 Servlet API has a getter for this, for pre 2.5 servlet + * containers use an init parameter. + */ + @SuppressWarnings("unchecked") + protected void initContextPath(ServletConfig config) { + if (Collections.list(config.getInitParameterNames()).contains("contextPath")) { + contextPath = config.getInitParameter("contextPath"); + } else { + ServletContext context = config.getServletContext(); + Method m; + try { + m = context.getClass().getMethod("getContextPath", new Class[]{}); + try { + contextPath = (String)m.invoke(context, new Object[]{}); + } catch (Exception e) { + throw new RuntimeException(e); + } + } catch (NoSuchMethodException e) { + throw new IllegalStateException("'contextPath' init parameter must be set for pre-2.5 servlet container"); + } + } + logger.info("initContextPath: " + contextPath); + } + + void destroy() { + + // Destroy the registered servlets + for (Servlet servlet : servlets.values()) { + servlet.destroy(); + } + + // Close the SCA domain + if (scaDomain != null) { + scaDomain.close(); + } + } + + public String getContextPath() { + return contextPath; + } + +} diff --git a/branches/sca-java-1.0/modules/host-webapp/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.ModuleActivator b/branches/sca-java-1.0/modules/host-webapp/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.ModuleActivator new file mode 100644 index 0000000000..d99fdf257e --- /dev/null +++ b/branches/sca-java-1.0/modules/host-webapp/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.ModuleActivator @@ -0,0 +1,18 @@ +# 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.
+# Implementation class for the ModuleActivator
+org.apache.tuscany.sca.host.webapp.WebAppModuleActivator
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