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A bundle containing code of all jar-based modules that provide JAX-RS and Jersey-related features. Such a bundle is *only intended* for developers that do not use Maven's dependency system. The bundle does not include code for contributes, tests and samples.

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package com.sun.jersey.spi.container.servlet;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Constructor;
import java.lang.reflect.Proxy;
import java.lang.reflect.Type;
import java.net.URI;
import java.security.Principal;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Application;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.GenericEntity;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.SecurityContext;

import javax.naming.NamingException;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.sun.jersey.api.container.ContainerException;
import com.sun.jersey.api.container.MappableContainerException;
import com.sun.jersey.api.core.ApplicationAdapter;
import com.sun.jersey.api.core.ClasspathResourceConfig;
import com.sun.jersey.api.core.PackagesResourceConfig;
import com.sun.jersey.api.core.ResourceConfig;
import com.sun.jersey.api.core.TraceInformation;
import com.sun.jersey.api.core.servlet.WebAppResourceConfig;
import com.sun.jersey.api.representation.Form;
import com.sun.jersey.core.header.InBoundHeaders;
import com.sun.jersey.core.header.MediaTypes;
import com.sun.jersey.core.reflection.ReflectionHelper;
import com.sun.jersey.core.util.ReaderWriter;
import com.sun.jersey.server.impl.InitialContextHelper;
import com.sun.jersey.server.impl.ThreadLocalInvoker;
import com.sun.jersey.server.impl.application.DeferredResourceConfig;
import com.sun.jersey.server.impl.cdi.CDIComponentProviderFactoryInitializer;
import com.sun.jersey.server.impl.container.servlet.JSPTemplateProcessor;
import com.sun.jersey.server.impl.ejb.EJBComponentProviderFactoryInitilizer;
import com.sun.jersey.server.impl.managedbeans.ManagedBeanComponentProviderFactoryInitilizer;
import com.sun.jersey.server.impl.model.method.dispatch.FormDispatchProvider;
import com.sun.jersey.server.impl.monitoring.GlassFishMonitoringInitializer;
import com.sun.jersey.server.probes.UriRuleProbeProvider;
import com.sun.jersey.spi.container.ContainerListener;
import com.sun.jersey.spi.container.ContainerNotifier;
import com.sun.jersey.spi.container.ContainerRequest;
import com.sun.jersey.spi.container.ContainerResponse;
import com.sun.jersey.spi.container.ContainerResponseWriter;
import com.sun.jersey.spi.container.ReloadListener;
import com.sun.jersey.spi.container.WebApplication;
import com.sun.jersey.spi.container.WebApplicationFactory;
import com.sun.jersey.spi.inject.SingletonTypeInjectableProvider;
import java.security.AccessController;
import java.security.PrivilegedActionException;

/**
 * An abstract Web component that may be extended a Servlet and/or
 * Filter implementation, or encapsulated by a Servlet or Filter implementation.
 *
 * @author Paul Sandoz (paul.sandoz at oracle.com)
 */
public class WebComponent implements ContainerListener {
    /**
     * The servlet initialization property whose value is a fully qualified
     * class name of a class that implements {@link ResourceConfig} or
     * {@link Application}.
     */
    public static final String APPLICATION_CONFIG_CLASS =
            "javax.ws.rs.Application";

    /**
     * The servlet initialization property whose value is a fully qualified
     * class name of a class that implements {@link ResourceConfig} or
     * {@link Application}.
     */
    public static final String RESOURCE_CONFIG_CLASS =
            "com.sun.jersey.config.property.resourceConfigClass";

    /**
     * The base path in the Web Pages where JSP templates, associated with
     * viewables of resource classes, are located.
     * 

* If this property is not set then the base path will be the root path * of the Web Pages. */ public static final String JSP_TEMPLATES_BASE_PATH = "com.sun.jersey.config.property.JSPTemplatesBasePath"; private static final Logger LOGGER = Logger.getLogger(WebComponent.class.getName()); private final ThreadLocalInvoker requestInvoker = new ThreadLocalInvoker(); private final ThreadLocalInvoker responseInvoker = new ThreadLocalInvoker(); private WebConfig config; private ResourceConfig resourceConfig; private WebApplication application; public WebComponent() { } public WebComponent(Application app) { if (app == null) throw new IllegalArgumentException(); if (app instanceof ResourceConfig) { resourceConfig = (ResourceConfig) app; } else { resourceConfig = new ApplicationAdapter(app); } } /** * Get the Web configuration. * * @return the Web configuration. */ public WebConfig getWebConfig() { return config; } /** * Get the resource configuration. * * @return the resource configuration. */ public ResourceConfig getResourceConfig() { return resourceConfig; } /** * Initiate the Web component. * * @param webConfig the Web configuration. * @throws javax.servlet.ServletException in case of any initialization error */ public void init(WebConfig webConfig) throws ServletException { config = webConfig; if (resourceConfig == null) resourceConfig = createResourceConfig(config); load(); Object o = resourceConfig.getProperties().get( ResourceConfig.PROPERTY_CONTAINER_NOTIFIER); if (o instanceof List) { List list = (List) o; for (Object elem : list) { if (elem instanceof ContainerNotifier) { ContainerNotifier crf = (ContainerNotifier) elem; crf.addListener(this); } } } else if (o instanceof ContainerNotifier) { ContainerNotifier crf = (ContainerNotifier) o; crf.addListener(this); } } /** * Destroy this Web component. *

* This will destroy the Web application created by this this Web component. */ public void destroy() { if (application != null) application.destroy(); } private final static class Writer extends OutputStream implements ContainerResponseWriter { final HttpServletResponse response; ContainerResponse cResponse; long contentLength; OutputStream out; boolean statusAndHeadersWritten = false; Writer(HttpServletResponse response) { this.response = response; } public OutputStream writeStatusAndHeaders(long contentLength, ContainerResponse cResponse) throws IOException { this.contentLength = contentLength; this.cResponse = cResponse; this.statusAndHeadersWritten = false; return this; } public void finish() throws IOException { if (statusAndHeadersWritten) return; // Note that the writing of headers MUST be performed before // the invocation of sendError as on some Servlet implementations // modification of the response headers will have no effect // after the invocation of sendError. writeHeaders(); writeStatus(); } private void writeStatus() { Response.StatusType statusType = cResponse.getStatusType(); final String reasonPhrase = statusType.getReasonPhrase(); if (reasonPhrase != null) { response.setStatus(statusType.getStatusCode(), reasonPhrase); } else { response.setStatus(statusType.getStatusCode()); } } public void write(int b) throws IOException { initiate(); out.write(b); } @Override public void write(byte b[]) throws IOException { if (b.length > 0) { initiate(); out.write(b); } } @Override public void write(byte b[], int off, int len) throws IOException { if (len > 0) { initiate(); out.write(b, off, len); } } @Override public void flush() throws IOException { writeStatusAndHeaders(); if (out != null) out.flush(); } @Override public void close() throws IOException { initiate(); out.close(); } void initiate() throws IOException { if (out == null) { writeStatusAndHeaders(); out = response.getOutputStream(); } } void writeStatusAndHeaders() { if (statusAndHeadersWritten) return; writeHeaders(); writeStatus(); statusAndHeadersWritten = true; } void writeHeaders() { if (contentLength != -1 && contentLength < Integer.MAX_VALUE) response.setContentLength((int) contentLength); MultivaluedMap headers = cResponse.getHttpHeaders(); for (Map.Entry> e : headers.entrySet()) { for (Object v : e.getValue()) { response.addHeader(e.getKey(), ContainerResponse.getHeaderValue(v)); } } } } /** * Dispatch client requests to a resource class. * * @param baseUri the base URI of the request. * @param requestUri the URI of the request. * @param request the {@link HttpServletRequest} object that * contains the request the client made to * the Web component. * @param response the {@link HttpServletResponse} object that * contains the response the Web component returns * to the client. * @return the status code of the response. * @throws IOException if an input or output error occurs * while the Web component is handling the * HTTP request. * @throws ServletException if the HTTP request cannot * be handled. */ public int service(URI baseUri, URI requestUri, final HttpServletRequest request, final HttpServletResponse response) throws ServletException, IOException { // Copy the application field to local instance to ensure that the // currently loaded web application is used to process // request final WebApplication _application = application; final ContainerRequest cRequest = createRequest( _application, request, baseUri, requestUri); cRequest.setSecurityContext(new SecurityContext() { public Principal getUserPrincipal() { return request.getUserPrincipal(); } public boolean isUserInRole(String role) { return request.isUserInRole(role); } public boolean isSecure() { return request.isSecure(); } public String getAuthenticationScheme() { return request.getAuthType(); } }); try { // Check if any servlet filters have consumed a request entity // of the media type application/x-www-form-urlencoded // This can happen if a filter calls request.getParameter(...) filterFormParameters(request, cRequest); UriRuleProbeProvider.requestStart(requestUri); requestInvoker.set(request); responseInvoker.set(response); final Writer w = new Writer(response); _application.handleRequest(cRequest, w); return w.cResponse.getStatus(); } catch (WebApplicationException ex) { final Response exResponse = ex.getResponse(); final String entity = exResponse.getEntity() != null ? exResponse.getEntity().toString() : null; response.sendError(exResponse.getStatus(), entity); return exResponse.getStatus(); } catch (MappableContainerException ex) { traceOnException(cRequest, response); throw new ServletException(ex.getCause()); } catch (ContainerException ex) { traceOnException(cRequest, response); throw new ServletException(ex); } catch (RuntimeException ex) { traceOnException(cRequest, response); throw ex; } finally { UriRuleProbeProvider.requestEnd(); requestInvoker.set(null); responseInvoker.set(null); } } /** * Extension point for creating your custom container request. * * @param app the web app * @param request the current servlet api request * @param baseUri the base uri * @param requestUri the request uri * @return the request container * @throws IOException if any error occurs when getting the input stream */ protected ContainerRequest createRequest(WebApplication app, HttpServletRequest request, URI baseUri, URI requestUri) throws IOException { return new ContainerRequest( app, request.getMethod(), baseUri, requestUri, getHeaders(request), request.getInputStream()); } private void traceOnException(final ContainerRequest cRequest, final HttpServletResponse response) { if (cRequest.isTracingEnabled()) { final TraceInformation ti = (TraceInformation) cRequest.getProperties(). get(TraceInformation.class.getName()); ti.addTraceHeaders(new TraceInformation.TraceHeaderListener() { public void onHeader(String name, String value) { response.addHeader(name, value); } }); } } /** * Create a new instance of a {@link WebApplication}. * * @return the {@link WebApplication} instance. */ protected WebApplication create() { return WebApplicationFactory.createWebApplication(); } /** * A helper class for creating an injectable provider that supports * {@link Context} with a type and constant value. * * @param the type of the constant value. */ protected static class ContextInjectableProvider extends SingletonTypeInjectableProvider { /** * Create a new instance. * * @param type the type of the constant value. * @param instance the constant value. */ protected ContextInjectableProvider(Type type, T instance) { super(type, instance); } } /** * Configure the {@link ResourceConfig}. *

* The {@link ResourceConfig} is configured such that the following classes * may be injected onto the field of a root resource class or a parameter * of a method of root resource class that is annotated with * {@link javax.ws.rs.core.Context}: {@link HttpServletRequest}, {@link HttpServletResponse} * , {@link ServletContext} and {@link WebConfig}. *

* Any root resource class in registered in the resource configuration * that is an interface is processed as follows. * If the class is an interface and there exists a JNDI named object * with the fully qualified class name as the JNDI name then that named * object is added as a singleton root resource and the class is removed * from the set of root resource classes. *

* An inheriting class may override this method to configure the * {@link ResourceConfig} to provide alternative or additional instances * that are resource or provider classes or instances, and may modify the * features and properties of the {@link ResourceConfig}. For an inheriting * class to extend configuration behaviour the overriding method MUST call * super.configure(servletConfig, rc, wa) as the first statement * of that method. *

* This method will be called only once at initiation. Subsequent * reloads of the Web application will not result in subsequence calls to * this method. * * @param wc the Web configuration * @param rc the Resource configuration * @param wa the Web application */ protected void configure(WebConfig wc, ResourceConfig rc, WebApplication wa) { configureJndiResources(rc); rc.getSingletons().add(new ContextInjectableProvider( HttpServletRequest.class, (HttpServletRequest) Proxy.newProxyInstance( this.getClass().getClassLoader(), new Class[]{HttpServletRequest.class}, requestInvoker))); rc.getSingletons().add(new ContextInjectableProvider( HttpServletResponse.class, (HttpServletResponse) Proxy.newProxyInstance( this.getClass().getClassLoader(), new Class[]{HttpServletResponse.class}, responseInvoker))); GenericEntity> requestThreadLocal = new GenericEntity>(requestInvoker.getImmutableThreadLocal()) { }; rc.getSingletons().add(new ContextInjectableProvider>( requestThreadLocal.getType(), requestThreadLocal.getEntity())); GenericEntity> responseThreadLocal = new GenericEntity>(responseInvoker.getImmutableThreadLocal()) { }; rc.getSingletons().add(new ContextInjectableProvider>( responseThreadLocal.getType(), responseThreadLocal.getEntity())); rc.getSingletons().add(new ContextInjectableProvider( ServletContext.class, wc.getServletContext())); rc.getSingletons().add(new ContextInjectableProvider( WebConfig.class, wc)); rc.getClasses().add(JSPTemplateProcessor.class); // TODO // If CDI is enabled should EJB injection be disabled? EJBComponentProviderFactoryInitilizer.initialize(rc); CDIComponentProviderFactoryInitializer.initialize(wc, rc, wa); // TODO // If CDI is enabled then no need to initialize managed beans ManagedBeanComponentProviderFactoryInitilizer.initialize(rc); GlassFishMonitoringInitializer.initialize(); } /** * Initiate the {@link WebApplication}. *

* This method will be called once at initiation and for * each reload of the Web application. *

* An inheriting class may override this method to initiate the * Web application with different parameters. * * @param rc the Resource configuration * @param wa the Web application */ protected void initiate(ResourceConfig rc, WebApplication wa) { wa.initiate(rc); } /** * Load the Web application. This will create, configure and initiate * the web application. */ public void load() { WebApplication _application = create(); configure(config, resourceConfig, _application); initiate(resourceConfig, _application); application = _application; } /** * Get the default resource configuration if one is not declared in the * web.xml. *

* This implementation returns an instance of {@link WebAppResourceConfig} * that scans in files and directories as declared by the * {@link ClasspathResourceConfig#PROPERTY_CLASSPATH} if present, otherwise * in the "WEB-INF/lib" and "WEB-INF/classes" directories. *

* An inheriting class may override this method to supply a different * default resource configuration implementation. * * @param props the properties to pass to the resource configuration. * @param wc the web configuration. * @return the default resource configuration. * @throws javax.servlet.ServletException in case of any issues with providing \ * the default resource configuration */ protected ResourceConfig getDefaultResourceConfig(Map props, WebConfig wc) throws ServletException { return getWebAppResourceConfig(props, wc); } // ContainerListener /** * Reload the Web application. This will create and initiate the web * application using the same {@link ResourceConfig} implementation * that was used to load the Web application. *

* This method may be called at runtime, more than once, to reload the * Web application. For example, if a {@link ResourceConfig} implementation * is capable of detecting changes to resource classes (addition or removal) * or providers then this method may be invoked to reload the web * application for such changes to take effect. *

* If this method is called when there are pending requests then such * requests will be processed using the previously loaded web application. */ public void onReload() { WebApplication oldApplication = application; WebApplication newApplication = create(); initiate(resourceConfig, newApplication); application = newApplication; if (resourceConfig instanceof ReloadListener) ((ReloadListener) resourceConfig).onReload(); oldApplication.destroy(); } // /* package */ ResourceConfig getWebAppResourceConfig(Map props, WebConfig webConfig) throws ServletException { // Default to using Web app resource config return new WebAppResourceConfig(props, webConfig.getServletContext()); } private ResourceConfig createResourceConfig(WebConfig webConfig) throws ServletException { final Map props = getInitParams(webConfig); final ResourceConfig rc = createResourceConfig(webConfig, props); rc.setPropertiesAndFeatures(props); return rc; } private ResourceConfig createResourceConfig(WebConfig webConfig, Map props) throws ServletException { // Check if the resource config class property is present String resourceConfigClassName = webConfig.getInitParameter(RESOURCE_CONFIG_CLASS); // Otherwise check if the JAX-RS application config class property is // present if (resourceConfigClassName == null) resourceConfigClassName = webConfig.getInitParameter(APPLICATION_CONFIG_CLASS); // If no resource config class property is present if (resourceConfigClassName == null) { // If the packages property is present then // use the packages resource config String packages = webConfig.getInitParameter( PackagesResourceConfig.PROPERTY_PACKAGES); if (packages != null) { props.put(PackagesResourceConfig.PROPERTY_PACKAGES, packages); return new PackagesResourceConfig(props); } ResourceConfig defaultConfig = webConfig.getDefaultResourceConfig(props); if (defaultConfig != null) return defaultConfig; return getDefaultResourceConfig(props, webConfig); } try { Class resourceConfigClass = AccessController.doPrivileged(ReflectionHelper. classForNameWithExceptionPEA(resourceConfigClassName)); // TODO add support for WebAppResourceConfig if (resourceConfigClass == ClasspathResourceConfig.class) { String[] paths = getPaths(webConfig.getInitParameter( ClasspathResourceConfig.PROPERTY_CLASSPATH)); props.put(ClasspathResourceConfig.PROPERTY_CLASSPATH, paths); return new ClasspathResourceConfig(props); } else if (ResourceConfig.class.isAssignableFrom(resourceConfigClass)) { try { Constructor constructor = resourceConfigClass.getConstructor(Map.class); if (ClasspathResourceConfig.class.isAssignableFrom(resourceConfigClass)) { String[] paths = getPaths(webConfig.getInitParameter( ClasspathResourceConfig.PROPERTY_CLASSPATH)); props.put(ClasspathResourceConfig.PROPERTY_CLASSPATH, paths); } return (ResourceConfig) constructor.newInstance(props); } catch (NoSuchMethodException ex) { // Pass through and try the default constructor } catch (Exception e) { throw new ServletException(e); } return new DeferredResourceConfig(resourceConfigClass.asSubclass(ResourceConfig.class)); } else if (Application.class.isAssignableFrom(resourceConfigClass)) { return new DeferredResourceConfig(resourceConfigClass.asSubclass(Application.class)); } else { String message = "Resource configuration class, " + resourceConfigClassName + ", is not a super class of " + Application.class; throw new ServletException(message); } } catch (ClassNotFoundException e) { String message = "Resource configuration class, " + resourceConfigClassName + ", could not be loaded"; throw new ServletException(message, e); } catch (PrivilegedActionException e) { String message = "Resource configuration class, " + resourceConfigClassName + ", could not be loaded"; throw new ServletException(message, e.getCause()); } } private Map getInitParams(WebConfig webConfig) { Map props = new HashMap(); Enumeration names = webConfig.getInitParameterNames(); while (names.hasMoreElements()) { String name = (String) names.nextElement(); props.put(name, webConfig.getInitParameter(name)); } return props; } private String[] getPaths(String classpath) throws ServletException { final ServletContext context = config.getServletContext(); if (classpath == null) { String[] paths = { context.getRealPath("/WEB-INF/lib"), context.getRealPath("/WEB-INF/classes") }; if (paths[0] == null && paths[1] == null) { String message = "The default deployment configuration that scans for " + "classes in /WEB-INF/lib and /WEB-INF/classes is not supported " + "for the application server." + "Try using the package scanning configuration, see the JavaDoc for " + PackagesResourceConfig.class.getName() + " and the property " + PackagesResourceConfig.PROPERTY_PACKAGES + "."; throw new ServletException(message); } return paths; } else { String[] virtualPaths = classpath.split(";"); List resourcePaths = new ArrayList(); for (String virtualPath : virtualPaths) { virtualPath = virtualPath.trim(); if (virtualPath.length() == 0) continue; String path = context.getRealPath(virtualPath); if (path != null) resourcePaths.add(path); } if (resourcePaths.isEmpty()) { String message = "None of the declared classpath locations, " + classpath + ", could be resolved. " + "This could be because the default deployment configuration that scans for " + "classes in classpath locations is not supported. " + "Try using the package scanning configuration, see the JavaDoc for " + PackagesResourceConfig.class.getName() + " and the property " + PackagesResourceConfig.PROPERTY_PACKAGES + "."; throw new ServletException(message); } return resourcePaths.toArray(new String[resourcePaths.size()]); } } private void configureJndiResources(ResourceConfig rc) { // Obtain any instances that are registered in JNDI // Assumes such instances are singletons // Registered classes have to be interfaces javax.naming.Context x = InitialContextHelper.getInitialContext(); if (x != null) { Iterator> i = rc.getClasses().iterator(); while (i.hasNext()) { Class c = i.next(); if (!c.isInterface()) continue; try { Object o = x.lookup(c.getName()); if (o != null) { i.remove(); rc.getSingletons().add(o); LOGGER.log(Level.INFO, "An instance of the class " + c.getName() + " is found by JNDI look up using the class name as the JNDI name. " + "The instance will be registered as a singleton."); } } catch (NamingException ex) { LOGGER.log(Level.CONFIG, "JNDI lookup failed for Jersey application resource " + c.getName(), ex); } } } } private void filterFormParameters(HttpServletRequest servletRequest, ContainerRequest containerRequet) throws IOException { if (MediaTypes.typeEquals(MediaType.APPLICATION_FORM_URLENCODED_TYPE, containerRequet.getMediaType()) && !isEntityPresent(containerRequet)) { Form f = new Form(); Enumeration e = servletRequest.getParameterNames(); while (e.hasMoreElements()) { String name = (String) e.nextElement(); String[] values = servletRequest.getParameterValues(name); f.put(name, Arrays.asList(values)); } if (!f.isEmpty()) { containerRequet.getProperties().put(FormDispatchProvider.FORM_PROPERTY, f); if (LOGGER.isLoggable(Level.WARNING)) { LOGGER.log(Level.WARNING, "A servlet request, to the URI " + containerRequet.getRequestUri() + ", " + "contains form parameters in " + "the request body but the request body has been consumed " + "by the servlet or a servlet filter accessing the request " + "parameters. Only resource methods using @FormParam " + "will work as expected. Resource methods consuming the " + "request body by other means will not work as expected."); } } } } private boolean isEntityPresent(ContainerRequest cr) throws IOException { InputStream in = cr.getEntityInputStream(); if (!in.markSupported()) { in = new BufferedInputStream(in, ReaderWriter.BUFFER_SIZE); cr.setEntityInputStream(in); } in.mark(1); if (in.read() == -1) return false; else { in.reset(); return true; } } private InBoundHeaders getHeaders(HttpServletRequest request) { InBoundHeaders rh = new InBoundHeaders(); for (Enumeration names = request.getHeaderNames(); names.hasMoreElements();) { String name = names.nextElement(); List valueList = new LinkedList(); for (Enumeration values = request.getHeaders(name); values.hasMoreElements();) { valueList.add(values.nextElement()); } rh.put(name, valueList); } return rh; } }





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