| /******************************************************************************* |
| * 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.impl.filter; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.sling.scripting.sightly.compiler.expression.Expression; |
| import org.apache.sling.scripting.sightly.compiler.expression.ExpressionNode; |
| |
| public abstract class AbstractFilter implements Filter { |
| |
| protected int priority = 100; |
| |
| @Override |
| public int priority() { |
| return priority; |
| } |
| |
| @Override |
| public int compareTo(Filter o) { |
| if (this.priority < o.priority()) { |
| return -1; |
| } else if (this.priority == o.priority()) { |
| return 0; |
| } |
| return 1; |
| } |
| |
| /** |
| * Collects the options passed in the {@code options} array into a new map while removing them from the original expression. |
| * |
| * @param expression the expression providing the options to be processed |
| * @param options the options of interest for the {@link Filter} |
| * @return a map with the retrieved options; the map can be empty if none of the options were found |
| */ |
| protected Map<String, ExpressionNode> getFilterOptions(Expression expression, String... options) { |
| Map<String, ExpressionNode> collector = new HashMap<>(); |
| for (String option : options) { |
| ExpressionNode optionNode = expression.removeOption(option); |
| if (optionNode != null) { |
| collector.put(option, optionNode); |
| } |
| } |
| return collector; |
| } |
| |
| @Override |
| public int hashCode() { |
| return super.hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| return obj != null && this.getClass().equals(obj.getClass()); |
| } |
| } |