org.keycloak.common.util.Resteasy Maven / Gradle / Ivy
/*
* Copyright 2019 Red Hat, Inc. and/or its affiliates
* and other 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 org.keycloak.common.util;
import java.util.ServiceLoader;
/**
* Provides a layer of indirection to abstract invocations to Resteasy internal APIs. Making also possible to use different
* versions of Resteasy (e.g.: v3 and v4) depending on the stack that the server is running.
*
*
The methods herein provided are basically related with accessing context data from Resteasy, which changed in latest versions of Resteasy.
*
*
It is important to use this class when access to context data is necessary in order to avoid incompatibilities with future
* versions of Resteasy.
*
* @author Pedro Igor
*/
public final class Resteasy {
private static ResteasyProvider provider;
static {
provider = ServiceLoader.load(ResteasyProvider.class, Resteasy.class.getClassLoader()).iterator().next();
}
public static ResteasyProvider getProvider() {
return provider;
}
/**
* Push the given {@code instance} with type/key {@code type} to the Resteasy context associated with the current thread.
*
* @param type the type/key to associate the {@code instance} with
* @param instance the instance
*/
public static void pushContext(Class type, Object instance) {
provider.pushContext(type, instance);
}
/**
* Lookup the instance associated with the given type/key {@code type} from the Resteasy context associated with the current thread.
*
* @param type the type/key to lookup
* @return the instance associated with the given {@code type} or null if non-existent.
*/
public static R getContextData(Class type) {
return provider.getContextData(type);
}
/**
* Clear the Resteasy context associated with the current thread.
*/
public static void clearContextData() {
provider.clearContextData();
}
/**
* Push the given {@code instance} with type/key {@code type} to the Resteasy global context.
*
* @param type the type/key to associate the {@code instance} with
* @param instance the instance
*/
public static void pushDefaultContextObject(Class type, Object instance) {
provider.pushDefaultContextObject(type, instance);
}
}