001/* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2008-2012 SonarSource 004 * mailto:contact AT sonarsource DOT com 005 * 006 * Sonar 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 * Sonar 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 017 * License along with Sonar; if not, write to the Free Software 018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02 019 */ 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.*; 026import org.sonar.api.BatchExtension; 027import org.sonar.api.ServerExtension; 028import org.sonar.api.batch.InstantiationStrategy; 029 030import javax.annotation.concurrent.Immutable; 031import java.util.Arrays; 032import java.util.List; 033 034/** 035 * @since 2.14 036 */ 037@Beta 038@Immutable 039@InstantiationStrategy(InstantiationStrategy.PER_BATCH) 040public final class ResourceTypeTree implements BatchExtension, ServerExtension { 041 042 private List<ResourceType> types; 043 private ListMultimap<String, String> relations; 044 045 private ResourceTypeTree(Builder builder) { 046 this.types = ImmutableList.copyOf(builder.types); 047 this.relations = ImmutableListMultimap.copyOf(builder.relations); 048 } 049 050 public List<ResourceType> getTypes() { 051 return types; 052 } 053 054 public List<String> getChildren(String qualifier) { 055 return relations.get(qualifier); 056 } 057 058 public List<String> getLeaves() { 059 return ImmutableList.copyOf(Collections2.filter(relations.values(), new Predicate<String>() { 060 public boolean apply(String qualifier) { 061 return relations.get(qualifier).isEmpty(); 062 } 063 })); 064 } 065 066 public static Builder builder() { 067 return new Builder(); 068 } 069 070 public static final class Builder { 071 private List<ResourceType> types = Lists.newArrayList(); 072 private ListMultimap<String, String> relations = ArrayListMultimap.create(); 073 074 private Builder() { 075 } 076 077 public Builder addType(ResourceType type) { 078 Preconditions.checkNotNull(type); 079 Preconditions.checkArgument(!types.contains(type), String.format("%s is already registered", type.getQualifier())); 080 types.add(type); 081 return this; 082 } 083 084 public Builder addRelations(String parentQualifier, String... childrenQualifiers) { 085 Preconditions.checkNotNull(parentQualifier); 086 Preconditions.checkNotNull(childrenQualifiers); 087 Preconditions.checkArgument(childrenQualifiers.length > 0, "childrenQualifiers can't be empty"); 088 relations.putAll(parentQualifier, Arrays.asList(childrenQualifiers)); 089 return this; 090 } 091 092 public ResourceTypeTree build() { 093 return new ResourceTypeTree(this); 094 } 095 } 096 097}