| /* |
| * 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 org.apache.knox.gateway; |
| |
| import org.apache.knox.gateway.descriptor.FilterDescriptor; |
| import org.apache.knox.gateway.descriptor.FilterParamDescriptor; |
| import org.apache.knox.gateway.descriptor.GatewayDescriptor; |
| import org.apache.knox.gateway.descriptor.GatewayParamDescriptor; |
| import org.apache.knox.gateway.descriptor.ResourceDescriptor; |
| import org.apache.knox.gateway.descriptor.ResourceParamDescriptor; |
| |
| import java.net.URISyntaxException; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| public class GatewayFactory { |
| |
| // public static GatewayFilter create( Config gatewayConfig ) throws URISyntaxException { |
| // GatewayFilter gateway = new GatewayFilter(); |
| // for( Config service : gatewayConfig.getChildren().values() ) { |
| // addService( gateway, service ); |
| // } |
| // return gateway; |
| // } |
| // |
| // private static void addService( GatewayFilter gateway, Config serviceConfig ) throws URISyntaxException { |
| // for( Config filterConfig : serviceConfig.getChildren().values() ) { |
| // addFilter( gateway, filterConfig ); |
| // } |
| // } |
| // |
| // private static void addFilter( GatewayFilter gateway, Config filterConfig ) throws URISyntaxException { |
| // String source = filterConfig.get( "pattern" ); |
| // String name = filterConfig.get( "name" ); |
| // String clazz = filterConfig.get( "class" ); |
| // gateway.addFilter( source, name, clazz, filterConfig ); |
| // } |
| |
| public static GatewayFilter create( GatewayDescriptor descriptor ) throws URISyntaxException { |
| GatewayFilter filter = new GatewayFilter(); |
| for( ResourceDescriptor resource : descriptor.resources() ) { |
| addResource( filter, resource ); |
| } |
| return filter; |
| } |
| |
| private static void addResource( GatewayFilter gateway, ResourceDescriptor resource ) throws URISyntaxException { |
| for( FilterDescriptor filter : resource.filters() ) { |
| addFilter( gateway, filter ); |
| } |
| } |
| |
| private static void addFilter( GatewayFilter gateway, FilterDescriptor filter ) throws URISyntaxException { |
| String name = filter.name(); |
| if( name == null ) { |
| name = filter.role(); |
| } |
| gateway.addFilter( filter.up().pattern(), name, filter.impl(), createParams( filter ), filter.up().role() ); |
| } |
| |
| private static Map<String, String> createParams( FilterDescriptor filter ) { |
| Map<String, String> paramMap = new HashMap<>(); |
| ResourceDescriptor resource = filter.up(); |
| GatewayDescriptor gateway = resource.up(); |
| for( GatewayParamDescriptor param : gateway.params() ) { |
| paramMap.put( param.name(), param.value() ); |
| } |
| for( ResourceParamDescriptor param : resource.params() ) { |
| paramMap.put( param.name(), param.value() ); |
| } |
| //TODO: Should all elements of the resource and gateway descriptor somehow be added to the filter params? |
| //TODO: Should we use some composite params object instead of copying all these name value pairs? |
| paramMap.put( "pattern", resource.pattern() ); |
| List<FilterParamDescriptor> paramList = filter.params(); |
| for( FilterParamDescriptor param : paramList ) { |
| paramMap.put( param.name(), param.value() ); |
| } |
| return paramMap; |
| } |
| |
| } |