com.spotify.helios.master.UserProvider Maven / Gradle / Ivy
/*
* Copyright (c) 2014 Spotify AB.
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 com.spotify.helios.master;
import com.spotify.helios.master.resources.RequestUser;
import com.sun.jersey.api.core.HttpContext;
import com.sun.jersey.core.spi.component.ComponentContext;
import com.sun.jersey.core.spi.component.ComponentScope;
import com.sun.jersey.server.impl.inject.AbstractHttpContextInjectable;
import com.sun.jersey.spi.inject.Injectable;
import com.sun.jersey.spi.inject.InjectableProvider;
import java.lang.reflect.Type;
import java.util.List;
import javax.ws.rs.ext.Provider;
@Provider
public class UserProvider extends AbstractHttpContextInjectable
implements InjectableProvider {
@Override
public String getValue(HttpContext arg0) {
final List usernames = arg0.getRequest().getQueryParameters().get("user");
if (usernames.isEmpty()) {
return null;
}
return usernames.get(0);
}
@Override
public Injectable getInjectable(ComponentContext ctx, RequestUser ruAnnotation, Type type) {
if (type.equals(String.class)) {
return this;
}
return null;
}
@Override
public ComponentScope getScope() {
return ComponentScope.PerRequest;
}
}