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Use reflection hack for error page in Tocmat 8

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This commit is contained in:
Dave Syer
2013-08-21 12:15:09 +01:00
committed by Phillip Webb
parent b4542f722f
commit 6e8cbbde3b
17 changed files with 130 additions and 803 deletions
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72
spring-boot/src/main/java/org/springframework/boot/context/embedded/tomcat/TomcatEmbeddedServletContainerFactory.java
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@@ -18,6 +18,7 @@ package org.springframework.boot.context.embedded.tomcat;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
@@ -34,6 +35,7 @@ import org.apache.catalina.loader.WebappLoader;
import org.apache.catalina.startup.Tomcat;
import org.apache.catalina.startup.Tomcat.FixContextListener;
import org.apache.coyote.AbstractProtocol;
import org.springframework.beans.BeanUtils;
import org.springframework.boot.context.embedded.AbstractEmbeddedServletContainerFactory;
import org.springframework.boot.context.embedded.EmbeddedServletContainer;
import org.springframework.boot.context.embedded.EmbeddedServletContainerException;
@@ -45,6 +47,7 @@ import org.springframework.context.ResourceLoaderAware;
import org.springframework.core.io.ResourceLoader;
import org.springframework.util.Assert;
import org.springframework.util.ClassUtils;
import org.springframework.util.ReflectionUtils;
/**
* {@link EmbeddedServletContainerFactory} that can be used to create
@@ -213,11 +216,7 @@ public class TomcatEmbeddedServletContainerFactory extends
context.getPipeline().addValve(valve);
}
for (ErrorPage errorPage : getErrorPages()) {
org.apache.catalina.deploy.ErrorPage tomcatPage = new org.apache.catalina.deploy.ErrorPage();
tomcatPage.setLocation(errorPage.getPath());
tomcatPage.setExceptionType(errorPage.getExceptionName());
tomcatPage.setErrorCode(errorPage.getStatusCode());
context.addErrorPage(tomcatPage);
new TomcatErrorPage(errorPage).addToContext(context);
}
for (MimeMappings.Mapping mapping : getMimeMappings()) {
context.addMimeMapping(mapping.getExtension(), mapping.getMimeType());
@@ -380,4 +379,67 @@ public class TomcatEmbeddedServletContainerFactory extends
this.tomcatContextCustomizers.addAll(Arrays.asList(tomcatContextCustomizers));
}
private static class TomcatErrorPage {
private String location;
private String exceptionType;
private int errorCode;
private Object nativePage;
public TomcatErrorPage(ErrorPage errorPage) {
this.location = errorPage.getPath();
this.exceptionType = errorPage.getExceptionName();
this.errorCode = errorPage.getStatusCode();
this.nativePage = createNativePage(errorPage);
}
private Object createNativePage(ErrorPage errorPage) {
Object nativePage = null;
try {
if (ClassUtils.isPresent("org.apache.catalina.deploy.ErrorPage", null)) {
nativePage = new org.apache.catalina.deploy.ErrorPage();
}
else {
if (ClassUtils.isPresent(
"org.apache.tomcat.util.descriptor.web.ErrorPage", null)) {
nativePage = BeanUtils.instantiate(ClassUtils.forName(
"org.apache.tomcat.util.descriptor.web.ErrorPage", null));
}
}
}
catch (ClassNotFoundException e) {
}
catch (LinkageError e) {
}
return nativePage;
}
public void addToContext(Context context) {
Assert.state(this.nativePage != null,
"Neither Tomcat 7 nor 8 detected so no native error page exists");
if (ClassUtils.isPresent("org.apache.catalina.deploy.ErrorPage", null)) {
org.apache.catalina.deploy.ErrorPage errorPage = (org.apache.catalina.deploy.ErrorPage) this.nativePage;
errorPage.setLocation(this.location);
errorPage.setErrorCode(this.errorCode);
errorPage.setExceptionType(this.exceptionType);
context.addErrorPage(errorPage);
}
else {
callMethod(this.nativePage, "setLocation", this.location, String.class);
callMethod(this.nativePage, "setErrorCode", this.errorCode, int.class);
callMethod(this.nativePage, "setExceptionType", this.exceptionType,
String.class);
callMethod(context, "addErrorPage", this.nativePage,
this.nativePage.getClass());
}
}
private void callMethod(Object target, String name, Object value, Class<?> type) {
Method method = ReflectionUtils.findMethod(target.getClass(), name, type);
ReflectionUtils.invokeMethod(method, target, value);
}
}
}