| /* |
| * 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.dubbo.admin.registry.common.route; |
| |
| import com.alibaba.dubbo.common.Constants; |
| import org.apache.dubbo.admin.registry.common.domain.Consumer; |
| import org.apache.dubbo.admin.registry.common.domain.Override; |
| import org.apache.dubbo.admin.registry.common.domain.Provider; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.List; |
| |
| public class OverrideUtils { |
| |
| public static final Comparator<Override> OVERRIDE_COMPARATOR = new Comparator<Override>() { |
| public int compare(Override o1, Override o2) { |
| if (o1 == null && o2 == null) { |
| return 0; |
| } |
| if (o1 == null) { |
| return -1; |
| } |
| if (o2 == null) { |
| return 1; |
| } |
| int cmp = cmp(o1.getAddress(), o2.getAddress()); |
| if (cmp != 0) { |
| return cmp; |
| } |
| cmp = cmp(o1.getApplication(), o2.getApplication()); |
| if (cmp != 0) { |
| return cmp; |
| } |
| return cmp(o1.getService(), o2.getService()); |
| } |
| |
| private int cmp(String s1, String s2) { |
| if (s1 == null && s2 == null) { |
| return 0; |
| } |
| if (s1 == null) { |
| return -1; |
| } |
| if (s2 == null) { |
| return 1; |
| } |
| if (s1.equals(s2)) { |
| return 0; |
| } |
| if (isAny(s1)) { |
| return 1; |
| } |
| if (isAny(s2)) { |
| return -1; |
| } |
| return s1.compareTo(s2); |
| } |
| |
| private boolean isAny(String s) { |
| return s == null || s.length() == 0 || Constants.ANY_VALUE.equals(s) || Constants.ANYHOST_VALUE.equals(s); |
| } |
| }; |
| |
| public static void setConsumerOverrides(Consumer consumer, List<Override> overrides) { |
| if (consumer == null || overrides == null) { |
| return; |
| } |
| List<Override> result = new ArrayList<Override>(overrides.size()); |
| for (Override override : overrides) { |
| if (!override.isEnabled()) { |
| continue; |
| } |
| if (override.isMatch(consumer)) { |
| result.add(override); |
| } |
| if (override.isUniqueMatch(consumer)) { |
| consumer.setOverride(override); |
| } |
| } |
| Collections.sort(result, OverrideUtils.OVERRIDE_COMPARATOR); |
| consumer.setOverrides(result); |
| } |
| |
| public static void setProviderOverrides(Provider provider, List<Override> overrides) { |
| if (provider == null || overrides == null) { |
| return; |
| } |
| List<Override> result = new ArrayList<Override>(overrides.size()); |
| for (Override override : overrides) { |
| if (!override.isEnabled()) { |
| continue; |
| } |
| if (override.isMatch(provider)) { |
| result.add(override); |
| } |
| if (override.isUniqueMatch(provider)) { |
| provider.setOverride(override); |
| } |
| } |
| provider.setOverrides(overrides); |
| } |
| |
| } |