001/* 002 * Copyright 2007-2018 The jdeb developers. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.vafer.jdeb.utils; 018 019import java.io.BufferedReader; 020import java.io.IOException; 021import java.io.InputStream; 022import java.io.InputStreamReader; 023import java.util.ArrayList; 024import java.util.List; 025 026public class FilteredFile { 027 028 private String openToken = "[["; 029 private String closeToken = "]]"; 030 private List<String> lines = new ArrayList<String>(); 031 032 public FilteredFile(InputStream in, VariableResolver resolver) throws IOException { 033 parse(in, resolver); 034 } 035 036 public void setOpenToken(String token) { 037 openToken = token; 038 } 039 040 public void setCloseToken(String token) { 041 closeToken = token; 042 } 043 044 private void parse(InputStream in, VariableResolver resolver) throws IOException { 045 BufferedReader reader = null; 046 try { 047 reader = new BufferedReader(new InputStreamReader(in)); 048 String line; 049 while ((line = reader.readLine()) != null) { 050 if (resolver != null) { 051 lines.add(Utils.replaceVariables(resolver, line, openToken, closeToken)); 052 } else { 053 lines.add(line); 054 } 055 } 056 } finally { 057 if (reader != null) { 058 reader.close(); 059 } 060 } 061 } 062 063 public String toString() { 064 StringBuilder builder = new StringBuilder(); 065 for (String line : lines) { 066 builder.append(line).append('\n'); 067 } 068 return builder.toString(); 069 } 070}