| /* |
| * 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.solr.util; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.function.Function; |
| |
| import org.apache.solr.cluster.api.SimpleMap; |
| import org.apache.solr.common.ConfigNode; |
| import org.apache.solr.common.util.DOMUtil; |
| import org.apache.solr.common.util.WrappedSimpleMap; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| |
| /** |
| * Read using DOM |
| */ |
| public class DOMConfigNode implements ConfigNode { |
| |
| private final Node node; |
| SimpleMap<String> attrs; |
| |
| |
| @Override |
| public String name() { |
| return node.getNodeName(); |
| } |
| |
| @Override |
| public String txt() { |
| return DOMUtil.getText(node); |
| } |
| |
| public DOMConfigNode(Node node) { |
| this.node = node; |
| } |
| |
| @Override |
| public SimpleMap<String> attributes() { |
| if (attrs != null) return attrs; |
| Map<String, String> attrs = DOMUtil.toMap(node.getAttributes()); |
| return this.attrs = attrs.size() == 0 ? EMPTY : new WrappedSimpleMap<>(attrs); |
| } |
| |
| @Override |
| public ConfigNode child(String name) { |
| Node n = DOMUtil.getChild(node, name); |
| return n == null? null: new DOMConfigNode(n); |
| } |
| |
| @Override |
| public List<ConfigNode> getAll(String name) { |
| List<ConfigNode> result = new ArrayList<>(); |
| forEachChild(it -> { |
| if (name.equals(it.name())) { |
| result.add(it); |
| } |
| return Boolean.TRUE; |
| }); |
| return result; |
| } |
| |
| @Override |
| public void forEachChild(Function<ConfigNode, Boolean> fun) { |
| NodeList nlst = node.getChildNodes(); |
| for (int i = 0; i < nlst.getLength(); i++) { |
| Node item = nlst.item(i); |
| if(item.getNodeType() != Node.ELEMENT_NODE) continue; |
| Boolean toContinue = fun.apply(new DOMConfigNode(item)); |
| if (Boolean.FALSE == toContinue) break; |
| } |
| } |
| private static final SimpleMap<String> EMPTY = new WrappedSimpleMap<>(Collections.emptyMap()); |
| |
| } |