001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *
010 *        http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License.
018 */
019package org.apache.isis.viewer.restfulobjects.rendering.util;
020
021import java.util.List;
022
023import org.apache.isis.viewer.restfulobjects.applib.util.PathNode;
024
025import com.google.common.base.Function;
026import com.google.common.collect.Iterables;
027import com.google.common.collect.Lists;
028
029public final class FollowSpecUtil {
030
031    private FollowSpecUtil() {
032    }
033
034    public final static List<List<PathNode>> asFollowSpecs(final List<List<String>> links) {
035        return Lists.newArrayList(Iterables.transform(links, new Function<List<String>, List<PathNode>>() {
036
037            @Override
038            public List<PathNode> apply(List<String> pathParts) {
039                return Lists.newArrayList(Iterables.transform(pathParts, new Function<String, PathNode>(){
040
041                    @Override
042                    public PathNode apply(String input) {
043                        return PathNode.parse(input);
044                    }
045                }
046                ));
047            }
048        }));
049    }
050}