001/* 002 * (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Thierry Delprat 018 */ 019package org.nuxeo.apidoc.snapshot; 020 021import java.util.ArrayList; 022import java.util.Collections; 023import java.util.HashMap; 024import java.util.List; 025import java.util.Map; 026 027public class SnapshotResolverHelper { 028 029 protected static final String[] capaliases = { "cap", "Nuxeo Platform", "Nuxeo cap", "Nuxeo DM", "dm" }; 030 031 public static String findBestMatch(List<DistributionSnapshot> snaps, String distributionId) { 032 033 if (distributionId == null || "".equals(distributionId.trim())) { 034 return null; 035 } 036 if ("current".equalsIgnoreCase((distributionId.trim()))) { 037 return "current"; 038 } 039 040 // exact match 041 for (DistributionSnapshot snap : snaps) { 042 if (snap.getKey().equalsIgnoreCase(distributionId)) { 043 return snap.getKey(); 044 } 045 } 046 047 // name match + best version 048 String[] parts = distributionId.split("-"); 049 if (parts.length > 1) { 050 String name = parts[0]; 051 String version = distributionId.replace(name + "-", ""); 052 name = getName(name); 053 List<String> potentialVersions = new ArrayList<String>(); 054 Map<String, String> dist4Version = new HashMap<String, String>(); 055 for (DistributionSnapshot snap : snaps) { 056 if (getName(snap.getName()).equalsIgnoreCase(name)) { 057 potentialVersions.add(snap.getVersion()); 058 dist4Version.put(snap.getVersion(), snap.getName()); 059 if (snap.getVersion().equals(version)) { 060 return snap.getKey(); 061 } 062 } 063 } 064 065 potentialVersions.add(version); 066 Collections.sort(potentialVersions); 067 int idx = potentialVersions.indexOf(version); 068 069 String targetVersion = null; 070 if (idx == potentialVersions.size() - 1) { 071 targetVersion = potentialVersions.get(idx - 1); 072 } else if (idx < potentialVersions.size() - 1) { 073 targetVersion = potentialVersions.get(idx + 1); 074 } 075 076 if (targetVersion != null) { 077 return dist4Version.get(targetVersion) + "-" + targetVersion; 078 } 079 } 080 return null; 081 } 082 083 protected static String getName(String name) { 084 for (String dname : capaliases) { 085 if (dname.equalsIgnoreCase(name)) { 086 return "cap"; 087 } 088 } 089 return name; 090 } 091 092}