Java tutorial
/* * Copyright (C) 2012 Facebook, Inc. * * 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.airlift.drift.server; import com.google.common.collect.Lists; import com.google.common.util.concurrent.ListenableFuture; import io.airlift.drift.transport.server.ServerInvokeRequest; import java.util.List; class FilteredMethodInvoker implements ServerMethodInvoker { public static ServerMethodInvoker createFilteredMethodInvoker(List<MethodInvocationFilter> filters, ServerMethodInvoker methodInvoker) { for (MethodInvocationFilter filter : Lists.reverse(filters)) { methodInvoker = new FilteredMethodInvoker(filter, methodInvoker); } return methodInvoker; } private final MethodInvocationFilter filter; private final ServerMethodInvoker next; private FilteredMethodInvoker(MethodInvocationFilter filter, ServerMethodInvoker next) { this.filter = filter; this.next = next; } @Override public ListenableFuture<Object> invoke(ServerInvokeRequest request) { return filter.invoke(request, next); } }