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/*
* 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.http;
import java.net.URL;
import java.util.List;
import javax.servlet.RequestDispatcher;
import javax.servlet.Servlet;
import javax.servlet.ServletContext;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.UtilityExtensionPoint;
/**
* Default implementation of an extensible Servlet host.
*
* @version $Rev$ $Date$
*/
public class ExtensibleServletHost implements ServletHost {
private ServletHostExtensionPoint servletHosts;
public ExtensibleServletHost(ExtensionPointRegistry registry) {
this.servletHosts = registry.getExtensionPoint(ServletHostExtensionPoint.class);
}
public static ExtensibleServletHost getInstance(ExtensionPointRegistry registry) {
UtilityExtensionPoint utilityExtensionPoint = registry.getExtensionPoint(UtilityExtensionPoint.class);
return utilityExtensionPoint.getUtility(ExtensibleServletHost.class);
}
public ExtensibleServletHost(ServletHostExtensionPoint servletHosts) {
this.servletHosts = servletHosts;
}
public void setDefaultPort(int port) {
for (ServletHost servletHost: servletHosts.getServletHosts()) {
servletHost.setDefaultPort(port);
}
}
public ServletHost getDefaultServletHost() {
List<ServletHost> hosts = servletHosts.getServletHosts();
if (hosts.isEmpty()) {
throw new ServletMappingException("No servlet host is available.");
}
if (servletHosts.isWebApp()) {
for (ServletHost servletHost : hosts) {
if (!"webapp".equals(servletHost.getName())) {
continue;
}
if (servletHost instanceof DefaultServletHostExtensionPoint.LazyServletHost) {
return ((DefaultServletHostExtensionPoint.LazyServletHost)servletHost).getServletHost();
} else {
return servletHost;
}
}
}
return hosts.get(0);
}
public int getDefaultPort() {
return getDefaultServletHost().getDefaultPort();
}
public String addServletMapping(String uri, Servlet servlet) throws ServletMappingException {
// TODO implement selection of the correct Servlet host based on the mapping
// For now just select the first one
return getDefaultServletHost().addServletMapping(uri, servlet);
}
public String addServletMapping(String uri, Servlet servlet, SecurityContext securityContext) throws ServletMappingException {
// TODO implement selection of the correct Servlet host based on the mapping
// For now just select the first one
return getDefaultServletHost().addServletMapping(uri, servlet, securityContext);
}
public Servlet getServletMapping(String uri) throws ServletMappingException {
// TODO implement selection of the correct Servlet host based on the mapping
// For now just select the first one
return getDefaultServletHost().getServletMapping(uri);
}
public Servlet removeServletMapping(String uri) throws ServletMappingException {
// TODO implement selection of the correct Servlet host based on the mapping
// For now just select the first one
return getDefaultServletHost().removeServletMapping(uri);
}
public RequestDispatcher getRequestDispatcher(String uri) throws ServletMappingException {
// TODO implement selection of the correct Servlet host based on the mapping
// For now just select the first one
return getDefaultServletHost().getRequestDispatcher(uri);
}
public String getContextPath() {
// TODO implement selection of the correct Servlet host based on the mapping
// For now just select the first one
return getDefaultServletHost().getContextPath();
}
public URL getURLMapping(String uri, SecurityContext securityContext) {
return getDefaultServletHost().getURLMapping(uri, securityContext);
}
public void setContextPath(String path) {
getDefaultServletHost().setContextPath(path);
}
public void setAttribute(String name, Object value) {
getDefaultServletHost().setAttribute(name, value);
}
public String getName() {
return getDefaultServletHost().getName();
}
@Override
public ServletContext getServletContext() {
return getDefaultServletHost().getServletContext();
}
}
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