001/* 002 * SonarQube, open source software quality management tool. 003 * Copyright (C) 2008-2013 SonarSource 004 * mailto:contact AT sonarsource DOT com 005 * 006 * SonarQube is free software; you can redistribute it and/or 007 * modify it under the terms of the GNU Lesser General Public 008 * License as published by the Free Software Foundation; either 009 * version 3 of the License, or (at your option) any later version. 010 * 011 * SonarQube is distributed in the hope that it will be useful, 012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 * Lesser General Public License for more details. 015 * 016 * You should have received a copy of the GNU Lesser General Public License 017 * along with this program; if not, write to the Free Software Foundation, 018 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 019 */ 020package org.sonar.api.resources; 021 022import com.google.common.annotations.Beta; 023import com.google.common.base.Preconditions; 024import com.google.common.base.Predicate; 025import com.google.common.collect.ArrayListMultimap; 026import com.google.common.collect.Collections2; 027import com.google.common.collect.ImmutableList; 028import com.google.common.collect.ImmutableListMultimap; 029import com.google.common.collect.ListMultimap; 030import com.google.common.collect.Lists; 031import org.sonar.api.ServerExtension; 032import org.sonar.api.task.TaskExtension; 033 034import javax.annotation.concurrent.Immutable; 035 036import java.util.Arrays; 037import java.util.Collection; 038import java.util.List; 039 040/** 041 * @since 2.14 042 */ 043@Beta 044@Immutable 045public class ResourceTypeTree implements TaskExtension, ServerExtension { 046 047 private List<ResourceType> types; 048 private ListMultimap<String, String> relations; 049 private ResourceType root; 050 051 private ResourceTypeTree(Builder builder) { 052 this.types = ImmutableList.copyOf(builder.types); 053 this.relations = ImmutableListMultimap.copyOf(builder.relations); 054 this.root = builder.root; 055 } 056 057 public List<ResourceType> getTypes() { 058 return types; 059 } 060 061 public List<String> getChildren(String qualifier) { 062 return relations.get(qualifier); 063 } 064 065 public ResourceType getRootType() { 066 return root; 067 } 068 069 public List<String> getLeaves() { 070 return ImmutableList.copyOf(Collections2.filter(relations.values(), new Predicate<String>() { 071 public boolean apply(String qualifier) { 072 return relations.get(qualifier).isEmpty(); 073 } 074 })); 075 } 076 077 public static Builder builder() { 078 return new Builder(); 079 } 080 081 public static final class Builder { 082 private List<ResourceType> types = Lists.newArrayList(); 083 private ListMultimap<String, String> relations = ArrayListMultimap.create(); 084 private ResourceType root; 085 086 private Builder() { 087 } 088 089 public Builder addType(ResourceType type) { 090 Preconditions.checkNotNull(type); 091 Preconditions.checkArgument(!types.contains(type), String.format("%s is already registered", type.getQualifier())); 092 types.add(type); 093 return this; 094 } 095 096 public Builder addRelations(String parentQualifier, String... childrenQualifiers) { 097 Preconditions.checkNotNull(parentQualifier); 098 Preconditions.checkNotNull(childrenQualifiers); 099 Preconditions.checkArgument(childrenQualifiers.length > 0, "childrenQualifiers can't be empty"); 100 relations.putAll(parentQualifier, Arrays.asList(childrenQualifiers)); 101 return this; 102 } 103 104 public ResourceTypeTree build() { 105 Collection<String> children = relations.values(); 106 for (ResourceType type : types) { 107 if (!children.contains(type.getQualifier())) { 108 root = type; 109 break; 110 } 111 } 112 return new ResourceTypeTree(this); 113 } 114 } 115 116}