| /* ==================================================================== |
| 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.poi.hwpf.usermodel; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.poi.hwpf.model.NotesTables; |
| |
| /** |
| * Default implementation of {@link Notes} interface |
| */ |
| public class NotesImpl implements Notes |
| { |
| private Map<Integer, Integer> anchorToIndexMap; |
| |
| private final NotesTables notesTables; |
| |
| public NotesImpl( NotesTables notesTables ) |
| { |
| this.notesTables = notesTables; |
| } |
| |
| public int getNoteAnchorPosition( int index ) |
| { |
| return notesTables.getDescriptor( index ).getStart(); |
| } |
| |
| public int getNoteIndexByAnchorPosition( int anchorPosition ) |
| { |
| updateAnchorToIndexMap(); |
| |
| Integer index = anchorToIndexMap |
| .get( Integer.valueOf( anchorPosition ) ); |
| if ( index == null ) |
| return -1; |
| |
| return index.intValue(); |
| } |
| |
| public int getNotesCount() |
| { |
| return notesTables.getDescriptorsCount(); |
| } |
| |
| public int getNoteTextEndOffset( int index ) |
| { |
| return notesTables.getTextPosition( index ).getEnd(); |
| } |
| |
| public int getNoteTextStartOffset( int index ) |
| { |
| return notesTables.getTextPosition( index ).getStart(); |
| } |
| |
| private void updateAnchorToIndexMap() |
| { |
| if ( anchorToIndexMap != null ) |
| return; |
| |
| Map<Integer, Integer> result = new HashMap<>(); |
| for ( int n = 0; n < notesTables.getDescriptorsCount(); n++ ) |
| { |
| int anchorPosition = notesTables.getDescriptor( n ).getStart(); |
| result.put( Integer.valueOf( anchorPosition ), Integer.valueOf( n ) ); |
| } |
| this.anchorToIndexMap = result; |
| } |
| } |