| /******************************************************************************* |
| * 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.ofbiz.service.calendar; |
| |
| /** Temporal expression pretty printer. */ |
| public class TemporalExpressionPrinter implements TemporalExpressionVisitor { |
| protected final TemporalExpression expression; |
| protected final StringBuilder sb = new StringBuilder(); |
| protected int indentSize = 2; |
| protected int currentIndent = 0; |
| |
| public TemporalExpressionPrinter(TemporalExpression expression) { |
| this.expression = expression; |
| } |
| |
| public TemporalExpressionPrinter(TemporalExpression expression, int indentSize) { |
| this.expression = expression; |
| if (indentSize > 0) { |
| this.indentSize = indentSize; |
| } |
| } |
| |
| protected void appendExpression(TemporalExpression expression) { |
| appendIndent(); |
| this.sb.append(expression); |
| this.sb.append("\n"); |
| } |
| |
| protected void appendIndent() { |
| for (int i = 0; i < this.currentIndent; i++) { |
| this.sb.append(" "); |
| } |
| } |
| |
| protected void indent() { |
| this.currentIndent += this.indentSize; |
| } |
| |
| @Override |
| public String toString() { |
| this.expression.accept(this); |
| return this.sb.toString(); |
| } |
| |
| protected void unIndent() { |
| this.currentIndent -= this.indentSize; |
| } |
| |
| @Override |
| public void visit(TemporalExpressions.DateRange expr) { |
| appendExpression(expr); |
| } |
| |
| @Override |
| public void visit(TemporalExpressions.DayInMonth expr) { |
| appendExpression(expr); |
| } |
| |
| @Override |
| public void visit(TemporalExpressions.DayOfMonthRange expr) { |
| appendExpression(expr); |
| } |
| |
| @Override |
| public void visit(TemporalExpressions.DayOfWeekRange expr) { |
| appendExpression(expr); |
| } |
| |
| @Override |
| public void visit(TemporalExpressions.Difference expr) { |
| appendIndent(); |
| this.sb.append("Difference ["); |
| this.sb.append(expr.getId()); |
| this.sb.append("]:\n"); |
| indent(); |
| appendIndent(); |
| this.sb.append("Include:\n"); |
| indent(); |
| expr.included.accept(this); |
| unIndent(); |
| appendIndent(); |
| this.sb.append("Exclude:\n"); |
| indent(); |
| expr.excluded.accept(this); |
| unIndent(); |
| unIndent(); |
| } |
| |
| @Override |
| public void visit(TemporalExpressions.Frequency expr) { |
| appendExpression(expr); |
| } |
| |
| @Override |
| public void visit(TemporalExpressions.HourRange expr) { |
| appendExpression(expr); |
| } |
| |
| @Override |
| public void visit(TemporalExpressions.Intersection expr) { |
| appendIndent(); |
| this.sb.append("Intersection ["); |
| this.sb.append(expr.getId()); |
| this.sb.append("]:\n"); |
| indent(); |
| for (TemporalExpression member: expr.expressionSet) { |
| member.accept(this); |
| } |
| unIndent(); |
| } |
| |
| @Override |
| public void visit(TemporalExpressions.MinuteRange expr) { |
| appendExpression(expr); |
| } |
| |
| @Override |
| public void visit(TemporalExpressions.MonthRange expr) { |
| appendExpression(expr); |
| } |
| |
| @Override |
| public void visit(TemporalExpressions.Null expr) { |
| appendExpression(expr); |
| } |
| |
| @Override |
| public void visit(TemporalExpressions.Substitution expr) { |
| appendIndent(); |
| this.sb.append("Substitution ["); |
| this.sb.append(expr.getId()); |
| this.sb.append("]:\n"); |
| indent(); |
| appendIndent(); |
| this.sb.append("Include:\n"); |
| indent(); |
| expr.included.accept(this); |
| unIndent(); |
| appendIndent(); |
| this.sb.append("Exclude:\n"); |
| indent(); |
| expr.excluded.accept(this); |
| unIndent(); |
| appendIndent(); |
| this.sb.append("Substitute:\n"); |
| indent(); |
| expr.substitute.accept(this); |
| unIndent(); |
| unIndent(); |
| } |
| |
| @Override |
| public void visit(TemporalExpressions.Union expr) { |
| appendIndent(); |
| this.sb.append("Union ["); |
| this.sb.append(expr.getId()); |
| this.sb.append("]:\n"); |
| indent(); |
| for (TemporalExpression member: expr.expressionSet) { |
| member.accept(this); |
| } |
| unIndent(); |
| } |
| } |