org.springframework.mock.web.MockServletContext Maven / Gradle / Ivy
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/*
* Copyright 2002-2016 the original author or authors.
*
* 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.
*/
package org.springframework.mock.web;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Collections;
import java.util.Enumeration;
import java.util.EventListener;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;
import javax.activation.FileTypeMap;
import javax.servlet.Filter;
import javax.servlet.FilterRegistration;
import javax.servlet.RequestDispatcher;
import javax.servlet.Servlet;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration;
import javax.servlet.SessionCookieConfig;
import javax.servlet.SessionTrackingMode;
import javax.servlet.descriptor.JspConfigDescriptor;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import org.springframework.util.Assert;
import org.springframework.util.ClassUtils;
import org.springframework.util.ObjectUtils;
import org.springframework.web.util.WebUtils;
/**
* Mock implementation of the {@link javax.servlet.ServletContext} interface.
*
* As of Spring 4.0, this set of mocks is designed on a Servlet 3.0 baseline.
*
*
Compatible with Servlet 3.0 but can be configured to expose a specific version
* through {@link #setMajorVersion}/{@link #setMinorVersion}; default is 3.0.
* Note that Servlet 3.0 support is limited: servlet, filter and listener
* registration methods are not supported; neither is JSP configuration.
* We generally do not recommend to unit test your ServletContainerInitializers and
* WebApplicationInitializers which is where those registration methods would be used.
*
*
Used for testing the Spring web framework; only rarely necessary for testing
* application controllers. As long as application components don't explicitly
* access the {@code ServletContext}, {@code ClassPathXmlApplicationContext} or
* {@code FileSystemXmlApplicationContext} can be used to load the context files
* for testing, even for {@code DispatcherServlet} context definitions.
*
*
For setting up a full {@code WebApplicationContext} in a test environment,
* you can use {@code AnnotationConfigWebApplicationContext},
* {@code XmlWebApplicationContext}, or {@code GenericWebApplicationContext},
* passing in an appropriate {@code MockServletContext} instance. You might want
* to configure your {@code MockServletContext} with a {@code FileSystemResourceLoader}
* in that case to ensure that resource paths are interpreted as relative filesystem
* locations.
*
*
A common setup is to point your JVM working directory to the root of your
* web application directory, in combination with filesystem-based resource loading.
* This allows to load the context files as used in the web application, with
* relative paths getting interpreted correctly. Such a setup will work with both
* {@code FileSystemXmlApplicationContext} (which will load straight from the
* filesystem) and {@code XmlWebApplicationContext} with an underlying
* {@code MockServletContext} (as long as the {@code MockServletContext} has been
* configured with a {@code FileSystemResourceLoader}).
*
* @author Rod Johnson
* @author Juergen Hoeller
* @author Sam Brannen
* @since 1.0.2
* @see #MockServletContext(org.springframework.core.io.ResourceLoader)
* @see org.springframework.web.context.support.AnnotationConfigWebApplicationContext
* @see org.springframework.web.context.support.XmlWebApplicationContext
* @see org.springframework.web.context.support.GenericWebApplicationContext
* @see org.springframework.context.support.ClassPathXmlApplicationContext
* @see org.springframework.context.support.FileSystemXmlApplicationContext
*/
public class MockServletContext implements ServletContext {
/** Default Servlet name used by Tomcat, Jetty, JBoss, and GlassFish: {@value}. */
private static final String COMMON_DEFAULT_SERVLET_NAME = "default";
private static final String TEMP_DIR_SYSTEM_PROPERTY = "java.io.tmpdir";
private static final Set DEFAULT_SESSION_TRACKING_MODES =
new LinkedHashSet(3);
static {
DEFAULT_SESSION_TRACKING_MODES.add(SessionTrackingMode.COOKIE);
DEFAULT_SESSION_TRACKING_MODES.add(SessionTrackingMode.URL);
DEFAULT_SESSION_TRACKING_MODES.add(SessionTrackingMode.SSL);
}
private final Log logger = LogFactory.getLog(getClass());
private final ResourceLoader resourceLoader;
private final String resourceBasePath;
private String contextPath = "";
private final Map contexts = new HashMap();
private int majorVersion = 3;
private int minorVersion = 0;
private int effectiveMajorVersion = 3;
private int effectiveMinorVersion = 0;
private final Map namedRequestDispatchers = new HashMap();
private String defaultServletName = COMMON_DEFAULT_SERVLET_NAME;
private final Map initParameters = new LinkedHashMap();
private final Map attributes = new LinkedHashMap();
private String servletContextName = "MockServletContext";
private final Set declaredRoles = new LinkedHashSet();
private Set sessionTrackingModes;
private final SessionCookieConfig sessionCookieConfig = new MockSessionCookieConfig();
/**
* Create a new {@code MockServletContext}, using no base path and a
* {@link DefaultResourceLoader} (i.e. the classpath root as WAR root).
* @see org.springframework.core.io.DefaultResourceLoader
*/
public MockServletContext() {
this("", null);
}
/**
* Create a new {@code MockServletContext}, using a {@link DefaultResourceLoader}.
* @param resourceBasePath the root directory of the WAR (should not end with a slash)
* @see org.springframework.core.io.DefaultResourceLoader
*/
public MockServletContext(String resourceBasePath) {
this(resourceBasePath, null);
}
/**
* Create a new {@code MockServletContext}, using the specified {@link ResourceLoader}
* and no base path.
* @param resourceLoader the ResourceLoader to use (or null for the default)
*/
public MockServletContext(ResourceLoader resourceLoader) {
this("", resourceLoader);
}
/**
* Create a new {@code MockServletContext} using the supplied resource base
* path and resource loader.
* Registers a {@link MockRequestDispatcher} for the Servlet named
* {@literal 'default'}.
* @param resourceBasePath the root directory of the WAR (should not end with a slash)
* @param resourceLoader the ResourceLoader to use (or null for the default)
* @see #registerNamedDispatcher
*/
public MockServletContext(String resourceBasePath, ResourceLoader resourceLoader) {
this.resourceLoader = (resourceLoader != null ? resourceLoader : new DefaultResourceLoader());
this.resourceBasePath = (resourceBasePath != null ? resourceBasePath : "");
// Use JVM temp dir as ServletContext temp dir.
String tempDir = System.getProperty(TEMP_DIR_SYSTEM_PROPERTY);
if (tempDir != null) {
this.attributes.put(WebUtils.TEMP_DIR_CONTEXT_ATTRIBUTE, new File(tempDir));
}
registerNamedDispatcher(this.defaultServletName, new MockRequestDispatcher(this.defaultServletName));
}
/**
* Build a full resource location for the given path, prepending the resource
* base path of this {@code MockServletContext}.
* @param path the path as specified
* @return the full resource path
*/
protected String getResourceLocation(String path) {
if (!path.startsWith("/")) {
path = "/" + path;
}
return this.resourceBasePath + path;
}
public void setContextPath(String contextPath) {
this.contextPath = (contextPath != null ? contextPath : "");
}
@Override
public String getContextPath() {
return this.contextPath;
}
public void registerContext(String contextPath, ServletContext context) {
this.contexts.put(contextPath, context);
}
@Override
public ServletContext getContext(String contextPath) {
if (this.contextPath.equals(contextPath)) {
return this;
}
return this.contexts.get(contextPath);
}
public void setMajorVersion(int majorVersion) {
this.majorVersion = majorVersion;
}
@Override
public int getMajorVersion() {
return this.majorVersion;
}
public void setMinorVersion(int minorVersion) {
this.minorVersion = minorVersion;
}
@Override
public int getMinorVersion() {
return this.minorVersion;
}
public void setEffectiveMajorVersion(int effectiveMajorVersion) {
this.effectiveMajorVersion = effectiveMajorVersion;
}
@Override
public int getEffectiveMajorVersion() {
return this.effectiveMajorVersion;
}
public void setEffectiveMinorVersion(int effectiveMinorVersion) {
this.effectiveMinorVersion = effectiveMinorVersion;
}
@Override
public int getEffectiveMinorVersion() {
return this.effectiveMinorVersion;
}
/**
* This method uses the default
* {@link javax.activation.FileTypeMap#getDefaultFileTypeMap() FileTypeMap}
* from the Java Activation Framework to resolve MIME types.
*
The Java Activation Framework returns {@code "application/octet-stream"}
* if the MIME type is unknown (i.e., it never returns {@code null}). Thus, in
* order to honor the {@link ServletContext#getMimeType(String)} contract,
* this method returns {@code null} if the MIME type is
* {@code "application/octet-stream"}.
*
{@code MockServletContext} does not provide a direct mechanism for
* setting a custom MIME type; however, if the default {@code FileTypeMap}
* is an instance of {@code javax.activation.MimetypesFileTypeMap}, a custom
* MIME type named {@code text/enigma} can be registered for a custom
* {@code .puzzle} file extension in the following manner:
*
* MimetypesFileTypeMap mimetypesFileTypeMap = (MimetypesFileTypeMap) FileTypeMap.getDefaultFileTypeMap();
* mimetypesFileTypeMap.addMimeTypes("text/enigma puzzle");
*
*/
@Override
public String getMimeType(String filePath) {
String mimeType = FileTypeMap.getDefaultFileTypeMap().getContentType(filePath);
return ("application/octet-stream".equals(mimeType) ? null : mimeType);
}
@Override
public Set getResourcePaths(String path) {
String actualPath = (path.endsWith("/") ? path : path + "/");
Resource resource = this.resourceLoader.getResource(getResourceLocation(actualPath));
try {
File file = resource.getFile();
String[] fileList = file.list();
if (ObjectUtils.isEmpty(fileList)) {
return null;
}
Set resourcePaths = new LinkedHashSet(fileList.length);
for (String fileEntry : fileList) {
String resultPath = actualPath + fileEntry;
if (resource.createRelative(fileEntry).getFile().isDirectory()) {
resultPath += "/";
}
resourcePaths.add(resultPath);
}
return resourcePaths;
}
catch (IOException ex) {
logger.warn("Couldn't get resource paths for " + resource, ex);
return null;
}
}
@Override
public URL getResource(String path) throws MalformedURLException {
Resource resource = this.resourceLoader.getResource(getResourceLocation(path));
if (!resource.exists()) {
return null;
}
try {
return resource.getURL();
}
catch (MalformedURLException ex) {
throw ex;
}
catch (IOException ex) {
logger.warn("Couldn't get URL for " + resource, ex);
return null;
}
}
@Override
public InputStream getResourceAsStream(String path) {
Resource resource = this.resourceLoader.getResource(getResourceLocation(path));
if (!resource.exists()) {
return null;
}
try {
return resource.getInputStream();
}
catch (IOException ex) {
logger.warn("Couldn't open InputStream for " + resource, ex);
return null;
}
}
@Override
public RequestDispatcher getRequestDispatcher(String path) {
if (!path.startsWith("/")) {
throw new IllegalArgumentException("RequestDispatcher path at ServletContext level must start with '/'");
}
return new MockRequestDispatcher(path);
}
@Override
public RequestDispatcher getNamedDispatcher(String path) {
return this.namedRequestDispatchers.get(path);
}
/**
* Register a {@link RequestDispatcher} (typically a {@link MockRequestDispatcher})
* that acts as a wrapper for the named Servlet.
* @param name the name of the wrapped Servlet
* @param requestDispatcher the dispatcher that wraps the named Servlet
* @see #getNamedDispatcher
* @see #unregisterNamedDispatcher
*/
public void registerNamedDispatcher(String name, RequestDispatcher requestDispatcher) {
Assert.notNull(name, "RequestDispatcher name must not be null");
Assert.notNull(requestDispatcher, "RequestDispatcher must not be null");
this.namedRequestDispatchers.put(name, requestDispatcher);
}
/**
* Unregister the {@link RequestDispatcher} with the given name.
* @param name the name of the dispatcher to unregister
* @see #getNamedDispatcher
* @see #registerNamedDispatcher
*/
public void unregisterNamedDispatcher(String name) {
Assert.notNull(name, "RequestDispatcher name must not be null");
this.namedRequestDispatchers.remove(name);
}
/**
* Get the name of the default {@code Servlet}.
* Defaults to {@literal 'default'}.
* @see #setDefaultServletName
*/
public String getDefaultServletName() {
return this.defaultServletName;
}
/**
* Set the name of the default {@code Servlet}.
*
Also {@link #unregisterNamedDispatcher unregisters} the current default
* {@link RequestDispatcher} and {@link #registerNamedDispatcher replaces}
* it with a {@link MockRequestDispatcher} for the provided
* {@code defaultServletName}.
* @param defaultServletName the name of the default {@code Servlet};
* never {@code null} or empty
* @see #getDefaultServletName
*/
public void setDefaultServletName(String defaultServletName) {
Assert.hasText(defaultServletName, "defaultServletName must not be null or empty");
unregisterNamedDispatcher(this.defaultServletName);
this.defaultServletName = defaultServletName;
registerNamedDispatcher(this.defaultServletName, new MockRequestDispatcher(this.defaultServletName));
}
@Override
@Deprecated
public Servlet getServlet(String name) {
return null;
}
@Override
@Deprecated
public Enumeration getServlets() {
return Collections.enumeration(Collections.emptySet());
}
@Override
@Deprecated
public Enumeration getServletNames() {
return Collections.enumeration(Collections.emptySet());
}
@Override
public void log(String message) {
logger.info(message);
}
@Override
@Deprecated
public void log(Exception ex, String message) {
logger.info(message, ex);
}
@Override
public void log(String message, Throwable ex) {
logger.info(message, ex);
}
@Override
public String getRealPath(String path) {
Resource resource = this.resourceLoader.getResource(getResourceLocation(path));
try {
return resource.getFile().getAbsolutePath();
}
catch (IOException ex) {
logger.warn("Couldn't determine real path of resource " + resource, ex);
return null;
}
}
@Override
public String getServerInfo() {
return "MockServletContext";
}
@Override
public String getInitParameter(String name) {
Assert.notNull(name, "Parameter name must not be null");
return this.initParameters.get(name);
}
@Override
public Enumeration getInitParameterNames() {
return Collections.enumeration(this.initParameters.keySet());
}
@Override
public boolean setInitParameter(String name, String value) {
Assert.notNull(name, "Parameter name must not be null");
if (this.initParameters.containsKey(name)) {
return false;
}
this.initParameters.put(name, value);
return true;
}
public void addInitParameter(String name, String value) {
Assert.notNull(name, "Parameter name must not be null");
this.initParameters.put(name, value);
}
@Override
public Object getAttribute(String name) {
Assert.notNull(name, "Attribute name must not be null");
return this.attributes.get(name);
}
@Override
public Enumeration getAttributeNames() {
return Collections.enumeration(new LinkedHashSet(this.attributes.keySet()));
}
@Override
public void setAttribute(String name, Object value) {
Assert.notNull(name, "Attribute name must not be null");
if (value != null) {
this.attributes.put(name, value);
}
else {
this.attributes.remove(name);
}
}
@Override
public void removeAttribute(String name) {
Assert.notNull(name, "Attribute name must not be null");
this.attributes.remove(name);
}
public void setServletContextName(String servletContextName) {
this.servletContextName = servletContextName;
}
@Override
public String getServletContextName() {
return this.servletContextName;
}
@Override
public ClassLoader getClassLoader() {
return ClassUtils.getDefaultClassLoader();
}
@Override
public void declareRoles(String... roleNames) {
Assert.notNull(roleNames, "Role names array must not be null");
for (String roleName : roleNames) {
Assert.hasLength(roleName, "Role name must not be empty");
this.declaredRoles.add(roleName);
}
}
public Set getDeclaredRoles() {
return Collections.unmodifiableSet(this.declaredRoles);
}
@Override
public void setSessionTrackingModes(Set sessionTrackingModes)
throws IllegalStateException, IllegalArgumentException {
this.sessionTrackingModes = sessionTrackingModes;
}
@Override
public Set getDefaultSessionTrackingModes() {
return DEFAULT_SESSION_TRACKING_MODES;
}
@Override
public Set getEffectiveSessionTrackingModes() {
return (this.sessionTrackingModes != null ?
Collections.unmodifiableSet(this.sessionTrackingModes) : DEFAULT_SESSION_TRACKING_MODES);
}
@Override
public SessionCookieConfig getSessionCookieConfig() {
return this.sessionCookieConfig;
}
//---------------------------------------------------------------------
// Unsupported Servlet 3.0 registration methods
//---------------------------------------------------------------------
@Override
public JspConfigDescriptor getJspConfigDescriptor() {
throw new UnsupportedOperationException();
}
@Override
public ServletRegistration.Dynamic addServlet(String servletName, String className) {
throw new UnsupportedOperationException();
}
@Override
public ServletRegistration.Dynamic addServlet(String servletName, Servlet servlet) {
throw new UnsupportedOperationException();
}
@Override
public ServletRegistration.Dynamic addServlet(String servletName, Class servletClass) {
throw new UnsupportedOperationException();
}
@Override
public T createServlet(Class c) throws ServletException {
throw new UnsupportedOperationException();
}
/**
* This method always returns {@code null}.
* @see javax.servlet.ServletContext#getServletRegistration(java.lang.String)
*/
@Override
public ServletRegistration getServletRegistration(String servletName) {
return null;
}
/**
* This method always returns an {@linkplain Collections#emptyMap empty map}.
* @see javax.servlet.ServletContext#getServletRegistrations()
*/
@Override
public Map getServletRegistrations() {
return Collections.emptyMap();
}
@Override
public FilterRegistration.Dynamic addFilter(String filterName, String className) {
throw new UnsupportedOperationException();
}
@Override
public FilterRegistration.Dynamic addFilter(String filterName, Filter filter) {
throw new UnsupportedOperationException();
}
@Override
public FilterRegistration.Dynamic addFilter(String filterName, Class filterClass) {
throw new UnsupportedOperationException();
}
@Override
public T createFilter(Class c) throws ServletException {
throw new UnsupportedOperationException();
}
/**
* This method always returns {@code null}.
* @see javax.servlet.ServletContext#getFilterRegistration(java.lang.String)
*/
@Override
public FilterRegistration getFilterRegistration(String filterName) {
return null;
}
/**
* This method always returns an {@linkplain Collections#emptyMap empty map}.
* @see javax.servlet.ServletContext#getFilterRegistrations()
*/
@Override
public Map getFilterRegistrations() {
return Collections.emptyMap();
}
@Override
public void addListener(Class listenerClass) {
throw new UnsupportedOperationException();
}
@Override
public void addListener(String className) {
throw new UnsupportedOperationException();
}
@Override
public void addListener(T t) {
throw new UnsupportedOperationException();
}
@Override
public T createListener(Class c) throws ServletException {
throw new UnsupportedOperationException();
}
}