Java Code Examples for org.springframework.web.context.support.WebApplicationContextUtils#findWebApplicationContext()

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Example 1
Source File: DelegatingFilterProxy.java    From spring-analysis-note with MIT License 6 votes vote down vote up 
/**
 * Return the {@code WebApplicationContext} passed in at construction time, if available.
 * Otherwise, attempt to retrieve a {@code WebApplicationContext} from the
 * {@code ServletContext} attribute with the {@linkplain #setContextAttribute
 * configured name} if set. Otherwise look up a {@code WebApplicationContext} under
 * the well-known "root" application context attribute. The
 * {@code WebApplicationContext} must have already been loaded and stored in the
 * {@code ServletContext} before this filter gets initialized (or invoked).
 * <p>Subclasses may override this method to provide a different
 * {@code WebApplicationContext} retrieval strategy.
 * @return the {@code WebApplicationContext} for this proxy, or {@code null} if not found
 * @see #DelegatingFilterProxy(String, WebApplicationContext)
 * @see #getContextAttribute()
 * @see WebApplicationContextUtils#getWebApplicationContext(javax.servlet.ServletContext)
 * @see WebApplicationContext#ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE
 */
@Nullable
protected WebApplicationContext findWebApplicationContext() {
	if (this.webApplicationContext != null) {
		// The user has injected a context at construction time -> use it...
		if (this.webApplicationContext instanceof ConfigurableApplicationContext) {
			ConfigurableApplicationContext cac = (ConfigurableApplicationContext) this.webApplicationContext;
			if (!cac.isActive()) {
				// The context has not yet been refreshed -> do so before returning it...
				cac.refresh();
			}
		}
		return this.webApplicationContext;
	}
	String attrName = getContextAttribute();
	if (attrName != null) {
		return WebApplicationContextUtils.getWebApplicationContext(getServletContext(), attrName);
	}
	else {
		return WebApplicationContextUtils.findWebApplicationContext(getServletContext());
	}
}
Example 2
Source File: DelegatingFilterProxy.java    From java-technology-stack with MIT License 6 votes vote down vote up 
/**
 * Return the {@code WebApplicationContext} passed in at construction time, if available.
 * Otherwise, attempt to retrieve a {@code WebApplicationContext} from the
 * {@code ServletContext} attribute with the {@linkplain #setContextAttribute
 * configured name} if set. Otherwise look up a {@code WebApplicationContext} under
 * the well-known "root" application context attribute. The
 * {@code WebApplicationContext} must have already been loaded and stored in the
 * {@code ServletContext} before this filter gets initialized (or invoked).
 * <p>Subclasses may override this method to provide a different
 * {@code WebApplicationContext} retrieval strategy.
 * @return the {@code WebApplicationContext} for this proxy, or {@code null} if not found
 * @see #DelegatingFilterProxy(String, WebApplicationContext)
 * @see #getContextAttribute()
 * @see WebApplicationContextUtils#getWebApplicationContext(javax.servlet.ServletContext)
 * @see WebApplicationContext#ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE
 */
@Nullable
protected WebApplicationContext findWebApplicationContext() {
	if (this.webApplicationContext != null) {
		// The user has injected a context at construction time -> use it...
		if (this.webApplicationContext instanceof ConfigurableApplicationContext) {
			ConfigurableApplicationContext cac = (ConfigurableApplicationContext) this.webApplicationContext;
			if (!cac.isActive()) {
				// The context has not yet been refreshed -> do so before returning it...
				cac.refresh();
			}
		}
		return this.webApplicationContext;
	}
	String attrName = getContextAttribute();
	if (attrName != null) {
		return WebApplicationContextUtils.getWebApplicationContext(getServletContext(), attrName);
	}
	else {
		return WebApplicationContextUtils.findWebApplicationContext(getServletContext());
	}
}
Example 3
Source File: DelegatingFilterProxy.java    From lams with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Return the {@code WebApplicationContext} passed in at construction time, if available.
 * Otherwise, attempt to retrieve a {@code WebApplicationContext} from the
 * {@code ServletContext} attribute with the {@linkplain #setContextAttribute
 * configured name} if set. Otherwise look up a {@code WebApplicationContext} under
 * the well-known "root" application context attribute. The
 * {@code WebApplicationContext} must have already been loaded and stored in the
 * {@code ServletContext} before this filter gets initialized (or invoked).
 * <p>Subclasses may override this method to provide a different
 * {@code WebApplicationContext} retrieval strategy.
 * @return the {@code WebApplicationContext} for this proxy, or {@code null} if not found
 * @see #DelegatingFilterProxy(String, WebApplicationContext)
 * @see #getContextAttribute()
 * @see WebApplicationContextUtils#getWebApplicationContext(javax.servlet.ServletContext)
 * @see WebApplicationContext#ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE
 */
protected WebApplicationContext findWebApplicationContext() {
	if (this.webApplicationContext != null) {
		// The user has injected a context at construction time -> use it...
		if (this.webApplicationContext instanceof ConfigurableApplicationContext) {
			ConfigurableApplicationContext cac = (ConfigurableApplicationContext) this.webApplicationContext;
			if (!cac.isActive()) {
				// The context has not yet been refreshed -> do so before returning it...
				cac.refresh();
			}
		}
		return this.webApplicationContext;
	}
	String attrName = getContextAttribute();
	if (attrName != null) {
		return WebApplicationContextUtils.getWebApplicationContext(getServletContext(), attrName);
	}
	else {
		return WebApplicationContextUtils.findWebApplicationContext(getServletContext());
	}
}
Example 4
Source File: DelegatingFilterProxy.java    From spring4-understanding with Apache License 2.0 6 votes vote down vote up 
/**
 * Return the {@code WebApplicationContext} passed in at construction time, if available.
 * Otherwise, attempt to retrieve a {@code WebApplicationContext} from the
 * {@code ServletContext} attribute with the {@linkplain #setContextAttribute
 * configured name} if set. Otherwise look up a {@code WebApplicationContext} under
 * the well-known "root" application context attribute. The
 * {@code WebApplicationContext} must have already been loaded and stored in the
 * {@code ServletContext} before this filter gets initialized (or invoked).
 * <p>Subclasses may override this method to provide a different
 * {@code WebApplicationContext} retrieval strategy.
 * @return the {@code WebApplicationContext} for this proxy, or {@code null} if not found
 * @see #DelegatingFilterProxy(String, WebApplicationContext)
 * @see #getContextAttribute()
 * @see WebApplicationContextUtils#getWebApplicationContext(javax.servlet.ServletContext)
 * @see WebApplicationContext#ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE
 */
protected WebApplicationContext findWebApplicationContext() {
	if (this.webApplicationContext != null) {
		// The user has injected a context at construction time -> use it...
		if (this.webApplicationContext instanceof ConfigurableApplicationContext) {
			ConfigurableApplicationContext cac = (ConfigurableApplicationContext) this.webApplicationContext;
			if (!cac.isActive()) {
				// The context has not yet been refreshed -> do so before returning it...
				cac.refresh();
			}
		}
		return this.webApplicationContext;
	}
	String attrName = getContextAttribute();
	if (attrName != null) {
		return WebApplicationContextUtils.getWebApplicationContext(getServletContext(), attrName);
	}
	else {
		return WebApplicationContextUtils.findWebApplicationContext(getServletContext());
	}
}