io.undertow.server.JvmRouteHandler Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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 io.undertow.server;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import io.undertow.server.handlers.Cookie;
import io.undertow.server.handlers.builder.HandlerBuilder;
import io.undertow.util.ConduitFactory;
import org.xnio.conduits.StreamSinkConduit;
/**
*
* Handler that appends the JVM route to the session id.
*
* @author Stuart Douglas
* @author Richard Opalka
*/
public class JvmRouteHandler implements HttpHandler {
private final HttpHandler next;
private final String sessionCookieName;
private final String jvmRoute;
private final JvmRouteWrapper wrapper = new JvmRouteWrapper();
public JvmRouteHandler(HttpHandler next, String sessionCookieName, String jvmRoute) {
this.next = next;
this.sessionCookieName = sessionCookieName;
this.jvmRoute = jvmRoute;
}
@Override
public void handleRequest(HttpServerExchange exchange) throws Exception {
for (Cookie cookie : exchange.requestCookies()) {
if (sessionCookieName.equals(cookie.getName())) {
int part = cookie.getValue().indexOf('.');
if (part != -1) {
cookie.setValue(cookie.getValue().substring(0, part));
}
}
}
exchange.addResponseWrapper(wrapper);
next.handleRequest(exchange);
}
private class JvmRouteWrapper implements ConduitWrapper {
@Override
public StreamSinkConduit wrap(ConduitFactory factory, HttpServerExchange exchange) {
for (Cookie cookie : exchange.responseCookies()) {
if (sessionCookieName.equals(cookie.getName())) {
StringBuilder sb = new StringBuilder(cookie.getValue());
sb.append('.');
sb.append(jvmRoute);
cookie.setValue(sb.toString());
}
}
return factory.create();
}
}
public static class Builder implements HandlerBuilder {
@Override
public String name() {
return "jvm-route";
}
@Override
public Map> parameters() {
Map> params = new HashMap<>();
params.put("value", String.class);
params.put("session-cookie-name", String.class);
return params;
}
@Override
public Set requiredParameters() {
return Collections.singleton("value");
}
@Override
public String defaultParameter() {
return "value";
}
@Override
public HandlerWrapper build(Map config) {
String sessionCookieName = (String) config.get("session-cookie-name");
return new Wrapper((String)config.get("value"), sessionCookieName == null ? "JSESSIONID" : sessionCookieName);
}
}
private static class Wrapper implements HandlerWrapper {
private final String value;
private final String sessionCookieName;
private Wrapper(String value, String sessionCookieName) {
this.value = value;
this.sessionCookieName = sessionCookieName;
}
@Override
public HttpHandler wrap(HttpHandler handler) {
return new JvmRouteHandler(handler, sessionCookieName, value);
}
}
}