| /* |
| * 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 |
| * |
| * http://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.sling.samples.pathbasedrtp; |
| |
| import java.util.regex.Pattern; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** Map a path prefix to a (1-based) index in the path components */ |
| class Mapping { |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| String path; |
| final String fixedNodeType; |
| final Pattern nodeTypeExpr; |
| int resourceTypeIndex; |
| public static final String DEFAULT_NODE_TYPE = "nt:unstructured"; |
| |
| Mapping(String definition) { |
| final String [] parts = definition.trim().split(":"); |
| if(parts.length < 2) { |
| throw new IllegalArgumentException("Illegal definition'" + definition + "'"); |
| } |
| |
| path = parts[0]; |
| try { |
| resourceTypeIndex = Integer.parseInt(parts[1]); |
| } catch(Exception e) { |
| log.warn("Invalid path index in Mapping {}", definition); |
| } |
| |
| // Parse the definition: two parts means default nodetype, |
| // more than two means fixed nodetype or regexp. |
| // Nodetypes can contain : which is our separator - not fun. |
| if(parts.length > 2) { |
| final StringBuilder sb = new StringBuilder(); |
| for(int i=2; i < parts.length; i++) { |
| sb.append(parts[i]); |
| if(i < parts.length - 1) { |
| sb.append(":"); |
| } |
| } |
| |
| String expr = sb.toString(); |
| if(expr.startsWith("(") && expr.endsWith(")")) { |
| // Definition in brackets -> regexp |
| fixedNodeType = null; |
| expr = expr.substring(1); |
| expr = expr.substring(0, expr.length() - 1); |
| nodeTypeExpr = Pattern.compile(expr); |
| } else { |
| // No brackets -> fixed node type |
| fixedNodeType = expr; |
| nodeTypeExpr = null; |
| } |
| } else { |
| fixedNodeType = DEFAULT_NODE_TYPE; |
| nodeTypeExpr = null; |
| } |
| |
| log.debug(toString()); |
| } |
| |
| @Override |
| public String toString() { |
| final StringBuilder sb = new StringBuilder(); |
| sb.append("Mapping: path="); |
| sb.append(path); |
| sb.append(", resource type index="); |
| sb.append(resourceTypeIndex); |
| if(fixedNodeType != null) { |
| sb.append(", node type="); |
| sb.append(fixedNodeType); |
| } else { |
| sb.append(", node type regexp="); |
| sb.append(nodeTypeExpr); |
| } |
| return sb.toString(); |
| } |
| |
| String getResourceType(String nodePath, String nodeType) { |
| String result = null; |
| if(path!=null && nodePath.startsWith(path) && nodeTypeMatches(nodeType)) { |
| final String [] paths = nodePath.split("/"); |
| if(paths.length >= resourceTypeIndex+1) { |
| result = paths[resourceTypeIndex]; |
| } |
| } |
| return result; |
| } |
| |
| private boolean nodeTypeMatches(String nodeType) { |
| if(fixedNodeType != null) { |
| return fixedNodeType.equals(nodeType); |
| } else if(nodeTypeExpr == null) { |
| throw new IllegalStateException("Neither fixedNodeType nor nodeTypeExpr supplied in " + this); |
| } |
| return nodeTypeExpr.matcher(nodeType).matches(); |
| |
| } |
| } |