Examples of org.springframework.web.context.ContextLoader

org.springframework.web.context.ContextLoader
Performs the actual initialization work for the root application context. Called by {@link ContextLoaderListener}.
Looks for a {@link #CONTEXT_CLASS_PARAM "contextClass"} parameterat the web.xml context-param level to specify the context class type, falling back to the default of {@link org.springframework.web.context.support.XmlWebApplicationContext}if not found. With the default ContextLoader implementation, any context class specified needs to implement the ConfigurableWebApplicationContext interface.
Processes a {@link #CONFIG_LOCATION_PARAM "contextConfigLocation"}context-param and passes its value to the context instance, parsing it into potentially multiple file paths which can be separated by any number of commas and spaces, e.g. "WEB-INF/applicationContext1.xml, WEB-INF/applicationContext2.xml". Ant-style path patterns are supported as well, e.g. "WEB-INF/*Context.xml,WEB-INF/spring*.xml" or "WEB-INF/**/*Context.xml". If not explicitly specified, the context implementation is supposed to use a default location (with XmlWebApplicationContext: "/WEB-INF/applicationContext.xml").
Note: In case of multiple config locations, later bean definitions will override ones defined in previously loaded files, at least when using one of Spring's default ApplicationContext implementations. This can be leveraged to deliberately override certain bean definitions via an extra XML file.
Above and beyond loading the root application context, this class can optionally load or obtain and hook up a shared parent context to the root application context. See the {@link #loadParentContext(ServletContext)} method for more information.
As of Spring 3.1, {@code ContextLoader} supports injecting the root webapplication context via the {@link #ContextLoader(WebApplicationContext)}constructor, allowing for programmatic configuration in Servlet 3.0+ environments. See {@link org.springframework.web.WebApplicationInitializer} for usage examples. @author Juergen Hoeller @author Colin Sampaleanu @author Sam Brannen @since 17.02.2003 @see ContextLoaderListener @see ConfigurableWebApplicationContext @see org.springframework.web.context.support.XmlWebApplicationContext

        if (logger.isInfoEnabled()) logger.info("Spring config locations established as [" + configFilesLocations + "]");
        super.contextInitialized(event);
    }


    @Override protected ContextLoader createContextLoader() {
        return new ContextLoader() {
            @Override protected void customizeContext(ServletContext servletContext, ConfigurableWebApplicationContext applicationContext) {
                applicationContext.setConfigLocation(configFilesLocations);
            }
        };
    }

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  public static final String ARANEA_ROOT_INIT_PARAMETER_NAME = "aranea-application-root";
  
  private WebApplicationContext beanFactory;


  public void init(ServletConfig config) throws ServletException {
    ContextLoader loader = new ContextLoader();    
    beanFactory = loader.initWebApplicationContext(config.getServletContext());
    super.init(config);
  }

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 */
public class SpringTapestryIntegrationTests extends TestCase {
    public void testSpringIntegration() throws Exception {
        MockServletContext servletContext = new MockServletContext();
        servletContext.addInitParameter(ContextLoader.CONFIG_LOCATION_PARAM, "classpath:org/springmodules/web/tapestry/applicationContext.xml");
        ContextLoader contextLoader = new ContextLoader();
        contextLoader.initWebApplicationContext(servletContext);


        MockServletConfig servletConfig = new MockServletConfig(servletContext, "servlet");
        ApplicationServlet servlet = new ApplicationServlet();
        servlet.init(servletConfig);

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            catch (Throwable e) {
                throw new ConfigurationException("Unable to instantiate context loader class " + contextLoaderClassName);
            }
        }
        
        ContextLoader contextLoader = null;
        try {
            contextLoader = contextLoaderClass.newInstance();
        }
        catch (Exception e) {
            throw new ExecutionException("Error instantiating context loader class " + contextLoaderClassName + ": " + e.getMessage(), e);

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      catch (Throwable e) {
        throw new ConfigurationException("Unable to instantiate context loader class " + contextLoaderClassName);
      }
    }
    
    ContextLoader contextLoader = null;
    try {
      contextLoader = contextLoaderClass.newInstance();
    }
    catch (Exception e) {
      throw new ExecutionException("Error instantiating context loader class " + contextLoaderClassName + ": " + e.getMessage(), e);

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            catch (Throwable e) {
                throw new ConfigurationException("Unable to instantiate context loader class " + contextLoaderClassName);
            }
        }
        
        ContextLoader contextLoader = null;
        try {
            contextLoader = (ContextLoader) contextLoaderClass.newInstance();
        }
        catch (Exception e) {
            throw new ExecutionException("Error instantiating context loader class " + contextLoaderClassName + ": " + e.getMessage(), e);

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            catch (Throwable e) {
                throw new ConfigurationException("Unable to instantiate context loader class " + contextLoaderClassName);
            }
        }
        
        ContextLoader contextLoader = null;
        try {
            contextLoader = contextLoaderClass.newInstance();
        }
        catch (Exception e) {
            throw new ExecutionException("Error instantiating context loader class " + contextLoaderClassName + ": " + e.getMessage(), e);

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      catch (Throwable e) {
        throw new ConfigurationException("Unable to instantiate context loader class " + contextLoaderClassName);
      }
    }
    
    ContextLoader contextLoader = null;
    try {
      contextLoader = contextLoaderClass.newInstance();
    }
    catch (Exception e) {
      throw new ExecutionException("Error instantiating context loader class " + contextLoaderClassName + ": " + e.getMessage(), e);

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      catch (Throwable e) {
        throw new ConfigurationException("Unable to instantiate context loader class " + contextLoaderClassName);
      }
    }
    
    ContextLoader contextLoader = null;
    try {
      contextLoader = contextLoaderClass.newInstance();
    }
    catch (Exception e) {
      throw new ExecutionException("Error instantiating context loader class " + contextLoaderClassName + ": " + e.getMessage(), e);

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    /* (non-Javadoc)
     * @see org.directwebremoting.guice.spring.BeanFactoryLoader#loadBeanFactory()
     */
    public BeanFactory loadBeanFactory() 
    {
        new ContextLoader().initWebApplicationContext(servletContext);
        return WebApplicationContextUtils.getWebApplicationContext(servletContext);
    }

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