scouter.agent.proxy.HttpTraceFactory Maven / Gradle / Ivy
/*
* Copyright 2015 the original author or authors.
* @https://github.com/scouter-project/scouter
*
* 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 scouter.agent.proxy;
import scouter.agent.Logger;
import scouter.agent.trace.TraceContext;
import java.lang.reflect.Method;
public class HttpTraceFactory {
private static final String HTTP_TRACE = "scouter.xtra.http.HttpTrace";
private static final String HTTP_TRACE3 = "scouter.xtra.http.HttpTrace3";
public static final IHttpTrace dummy = new IHttpTrace() {
public String getParameter(Object req, String key) {
return null;
}
public String getHeader(Object req, String key) {
return null;
}
public void start(TraceContext ctx, Object req, Object res) {
}
public void end(TraceContext ctx, Object req, Object res) {
}
public void rejectText(Object res, String text) {
}
public void rejectUrl(Object res, String url) {
}
public void addAsyncContextListener(Object ac) {
}
public TraceContext getTraceContextFromAsyncContext(Object oAsyncContext) {
return null;
}
public void setDispatchTransferMap(Object oAsyncContext, long gxid, long caller, long callee, byte xType) {
}
public void setSelfDispatch(Object oAsyncContext, boolean self) {
}
public boolean isSelfDispatch(Object oAsyncContext) {
return false;
}
};
public static IHttpTrace create(ClassLoader parent, Object oReq) {
try {
ClassLoader loader = LoaderManager.getHttpLoader(parent);
if (loader == null) {
return dummy;
}
boolean servlet3 = true;
try {
Method m = oReq.getClass().getMethod("logout");
} catch (Exception e) {
servlet3 = false;
}
Class c = null;
if(servlet3) {
c = Class.forName(HTTP_TRACE3, true, loader);
} else {
c = Class.forName(HTTP_TRACE, true, loader);
}
return (IHttpTrace) c.newInstance();
} catch (Throwable e) {
Logger.println("A133", "fail to create", e);
return dummy;
}
}
}