| /* |
| * 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 |
| * |
| * https://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.ivy.plugins.circular; |
| |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.ivy.core.module.descriptor.ModuleDescriptor; |
| import org.apache.ivy.core.module.id.ModuleRevisionId; |
| |
| public final class CircularDependencyHelper { |
| |
| /** CircularDependencyHelper is not designed to be an instance */ |
| private CircularDependencyHelper() { |
| } |
| |
| /** |
| * Returns a string representation of this circular dependency graph |
| * |
| * @param mrids |
| * in order of circular dependency |
| * @return a string representation of this circular dependency graph |
| */ |
| public static String formatMessage(final ModuleRevisionId[] mrids) { |
| Set<ModuleRevisionId> alreadyAdded = new HashSet<>(); |
| StringBuilder buff = new StringBuilder(); |
| for (ModuleRevisionId mrid : mrids) { |
| if (buff.length() > 0) { |
| buff.append("->"); |
| } |
| if (alreadyAdded.add(mrid)) { |
| buff.append(mrid); |
| } else { |
| buff.append("..."); |
| break; |
| } |
| } |
| return buff.toString(); |
| } |
| |
| public static String formatMessage(final ModuleDescriptor[] descriptors) { |
| return formatMessageFromDescriptors(Arrays.asList(descriptors)); |
| } |
| |
| /** |
| * @param loopElements |
| * a List<ModuleDescriptor> |
| * @return String |
| */ |
| public static String formatMessageFromDescriptors(List<ModuleDescriptor> loopElements) { |
| List<ModuleRevisionId> mrids = new LinkedList<>(); |
| for (ModuleDescriptor descriptor : loopElements) { |
| mrids.add(descriptor.getModuleRevisionId()); |
| } |
| return formatMessage(mrids.toArray(new ModuleRevisionId[mrids.size()])); |
| } |
| |
| } |