| /* |
| * 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.deploy.impl; |
| |
| import org.apache.knox.gateway.deploy.DeploymentContext; |
| import org.apache.knox.gateway.deploy.ProviderDeploymentContributorBase; |
| import org.apache.knox.gateway.descriptor.FilterDescriptor; |
| import org.apache.knox.gateway.descriptor.FilterParamDescriptor; |
| import org.apache.knox.gateway.descriptor.ResourceDescriptor; |
| import org.apache.knox.gateway.topology.Provider; |
| import org.apache.knox.gateway.topology.Service; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| |
| public class GenericProviderDeploymentContributor extends |
| ProviderDeploymentContributorBase { |
| |
| public static final String FILTER_PARAM = "filter"; |
| |
| @Override |
| public String getRole() { |
| return "*"; |
| } |
| |
| @Override |
| public String getName() { |
| return "generic"; |
| } |
| |
| @Override |
| public void contributeFilter( |
| DeploymentContext context, |
| Provider provider, |
| Service service, |
| ResourceDescriptor resource, |
| List<FilterParamDescriptor> params ) { |
| String filterClassName = getFilterClassName( provider.getParams() ); |
| FilterDescriptor filter = resource.addFilter(); |
| filter.name( getName() ); |
| filter.role( provider.getRole() ); |
| filter.impl( filterClassName ); |
| filter.params( getFilterInitParams( filter, provider.getParams(), params ) ); |
| } |
| |
| private String getFilterClassName( Map<String,String> params ) { |
| String filterClassName = null; |
| if( params != null ) { |
| filterClassName = params.get( FILTER_PARAM ); |
| } |
| if( filterClassName == null ) { |
| throw new IllegalArgumentException( FILTER_PARAM + "==null" ); |
| } |
| return filterClassName; |
| } |
| |
| private List<FilterParamDescriptor> getFilterInitParams( |
| FilterDescriptor filter, |
| Map<String,String> providerParams, |
| List<FilterParamDescriptor> filterParams ) { |
| List<FilterParamDescriptor> aggregateParams = new ArrayList<>(); |
| if( providerParams != null ) { |
| for( Map.Entry<String,String> param : providerParams.entrySet() ) { |
| String name = param.getKey(); |
| if( !FILTER_PARAM.equalsIgnoreCase( name ) ) { |
| aggregateParams.add( filter.createParam().name( name ).value( param.getValue() ) ); |
| } |
| } |
| } |
| if( filterParams != null ) { |
| aggregateParams.addAll( filterParams ); |
| } |
| return aggregateParams; |
| } |
| |
| } |