001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.imaging.common; 018 019import java.util.ArrayList; 020import java.util.List; 021 022public class GenericImageMetadata implements ImageMetadata { 023 private static final String NEWLINE = System.getProperty("line.separator"); 024 private final List<ImageMetadataItem> items = new ArrayList<>(); 025 026 public void add(final String keyword, final String text) { 027 add(new GenericImageMetadataItem(keyword, text)); 028 } 029 030 public void add(final ImageMetadataItem item) { 031 items.add(item); 032 } 033 034 @Override 035 public List<? extends ImageMetadataItem> getItems() { 036 return new ArrayList<>(items); 037 } 038 039 @Override 040 public String toString() { 041 return toString(null); 042 } 043 044 @Override 045 public String toString(String prefix) { 046 if (null == prefix) { 047 prefix = ""; 048 } 049 050 final StringBuilder result = new StringBuilder(); 051 for (int i = 0; i < items.size(); i++) { 052 if (i > 0) { 053 result.append(NEWLINE); 054 } 055 // if (null != prefix) 056 // result.append(prefix); 057 058 final ImageMetadataItem item = items.get(i); 059 result.append(item.toString(prefix + "\t")); 060 061 // Debug.debug("prefix", prefix); 062 // Debug.debug("item", items.get(i)); 063 // Debug.debug(); 064 } 065 return result.toString(); 066 } 067 068 public static class GenericImageMetadataItem implements ImageMetadataItem { 069 private final String keyword; 070 private final String text; 071 072 public GenericImageMetadataItem(final String keyword, final String text) { 073 this.keyword = keyword; 074 this.text = text; 075 } 076 077 public String getKeyword() { 078 return keyword; 079 } 080 081 public String getText() { 082 return text; 083 } 084 085 @Override 086 public String toString() { 087 return toString(null); 088 } 089 090 @Override 091 public String toString(final String prefix) { 092 final String result = keyword + ": " + text; 093 if (null != prefix) { 094 return prefix + result; 095 } 096 return result; 097 } 098 } 099 100}