| /* |
| * 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.jackrabbit.oak.plugins.document.bundlor; |
| |
| import java.util.List; |
| |
| import com.google.common.collect.Lists; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| |
| class CompositeMatcher implements Matcher { |
| private final List<Matcher> matchers; |
| |
| public static Matcher compose(List<Matcher> matchers){ |
| switch (matchers.size()) { |
| case 0: |
| return Matcher.NON_MATCHING; |
| case 1: |
| return matchers.get(0); |
| default: |
| return new CompositeMatcher(matchers); |
| } |
| } |
| |
| /** |
| * A CompositeMatcher must only be constructed when all passed |
| * matchers are matching |
| */ |
| private CompositeMatcher(List<Matcher> matchers) { |
| for (Matcher m : matchers){ |
| checkArgument(m.isMatch(), "Non matching matcher found in [%s]", matchers); |
| } |
| this.matchers = matchers; |
| } |
| |
| @Override |
| public Matcher next(String name) { |
| List<Matcher> nextSet = Lists.newArrayListWithCapacity(matchers.size()); |
| for (Matcher current : matchers){ |
| Matcher next = current.next(name); |
| if (next.isMatch()){ |
| nextSet.add(next); |
| } |
| } |
| return compose(nextSet); |
| } |
| |
| @Override |
| public boolean isMatch() { |
| return true; |
| } |
| |
| @Override |
| public String getMatchedPath() { |
| //All matchers would have traversed same path. So use any one to |
| //determine the matching path |
| return matchers.get(0).getMatchedPath(); |
| } |
| |
| @Override |
| public int depth() { |
| return matchers.get(0).depth(); |
| } |
| |
| @Override |
| public boolean matchesAllChildren() { |
| for (Matcher m : matchers){ |
| if (m.matchesAllChildren()){ |
| return true; |
| } |
| } |
| return false; |
| } |
| } |