| /******************************************************************************* |
| * 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.scripting.sightly.compiler.expression.nodes; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.sling.scripting.sightly.compiler.expression.ExpressionNode; |
| import org.apache.sling.scripting.sightly.compiler.expression.NodeVisitor; |
| |
| /** |
| * Defines a syntactical construction representing a map. |
| */ |
| public final class MapLiteral implements ExpressionNode { |
| |
| private Map<String, ExpressionNode> map; |
| |
| /** |
| * Creates a map representation. |
| * |
| * @param map the backing {@link ExpressionNode} map |
| */ |
| public MapLiteral(Map<String, ExpressionNode> map) { |
| this.map = new HashMap<>(); |
| this.map.putAll(map); |
| } |
| |
| /** |
| * Returns an unmodifiable view of the backing map. |
| * |
| * @return an unmodifiable view of the backing map |
| */ |
| public Map<String, ExpressionNode> getMap() { |
| return Collections.unmodifiableMap(map); |
| } |
| |
| /** |
| * Returns an {@link ExpressionNode} from the backing map. |
| * |
| * @param key the key under which the node is stored |
| * @return the node, if one is stored under that key; {@code null} otherwise |
| */ |
| public ExpressionNode getValue(String key) { |
| return map.get(key); |
| } |
| |
| /** |
| * Checks if the map contains the property identified by the passed property name. |
| * |
| * @param name the property name |
| * @return {@code true} if the map contains the property, {@code false} otherwise |
| */ |
| public boolean containsKey(String name) { |
| return map.containsKey(name); |
| } |
| |
| @Override |
| public <T> T accept(NodeVisitor<T> visitor) { |
| return visitor.evaluate(this); |
| } |
| |
| @Override |
| public String toString() { |
| return "MapLiteral{" + |
| "map=" + map + |
| '}'; |
| } |
| } |