org.camunda.bpm.engine.rest.util.ProvidersUtil Maven / Gradle / Ivy
/*
* Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. Camunda licenses this file to you under the Apache License,
* Version 2.0; 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.camunda.bpm.engine.rest.util;
import org.camunda.bpm.engine.rest.exception.RestException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.ext.ContextResolver;
import javax.ws.rs.ext.Providers;
/**
* @author Thorben Lindhauer
*
*/
public class ProvidersUtil {
public static T resolveFromContext(Providers providers, Class clazz) {
return resolveFromContext(providers, clazz, null);
}
public static T resolveFromContext(Providers providers, Class clazz, Class type) {
return resolveFromContext(providers, clazz, null, type);
}
public static T resolveFromContext(Providers providers, Class clazz, MediaType mediaType, Class type) {
ContextResolver contextResolver = providers.getContextResolver(clazz, mediaType);
if (contextResolver == null) {
throw new RestException("No context resolver found for class " + clazz.getName());
}
return contextResolver.getContext(type);
}
}