1 package org.apache.maven.repository; 2 3 /* 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, 15 * software distributed under the License is distributed on an 16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17 * KIND, either express or implied. See the License for the 18 * specific language governing permissions and limitations 19 * under the License. 20 */ 21 22 import java.util.ArrayList; 23 import java.util.Collection; 24 25 /** 26 * This is the main graph data structure used by the RepositorySystem to present tree and graph objects. 27 * 28 * @author Oleg Gusakov 29 * @version $Id: MetadataGraph.java 958295 2010-06-26 23:16:18Z hboutemy $ 30 * 31 */ 32 public class MetadataGraph 33 { 34 /** all graph nodes */ 35 Collection<MetadataGraphNode> nodes; 36 37 /** entry point for tree-like structures */ 38 MetadataGraphNode entry; 39 40 public MetadataGraph( MetadataGraphNode entry ) 41 { 42 this(); 43 44 this.entry = entry; 45 } 46 47 public MetadataGraph() 48 { 49 nodes = new ArrayList<MetadataGraphNode>( 64 ); 50 } 51 52 public void addNode( MetadataGraphNode node ) 53 { 54 nodes.add( node ); 55 } 56 57 /** 58 * find a node by the GAV (metadata) 59 * 60 * @param md 61 * @return 62 */ 63 public MetadataGraphNode findNode( MavenArtifactMetadata md ) 64 { 65 for ( MetadataGraphNode mgn : nodes ) 66 { 67 if ( mgn.metadata.equals( md ) ) 68 { 69 return mgn; 70 } 71 } 72 73 MetadataGraphNode node = new MetadataGraphNode( md ); 74 addNode( node ); 75 return node; 76 } 77 78 /** 79 * getter 80 * 81 * @return 82 */ 83 public MetadataGraphNode getEntry() 84 { 85 return entry; 86 } 87 88 /** 89 * getter 90 * 91 * @return 92 */ 93 public Collection<MetadataGraphNode> getNodes() 94 { 95 return nodes; 96 } 97 }