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- /* ====================================================================
- 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.xssf.binary;
-
- import java.io.IOException;
- import java.io.InputStream;
- import java.util.ArrayList;
- import java.util.Comparator;
- import java.util.LinkedList;
- import java.util.List;
- import java.util.Map;
- import java.util.Queue;
- import java.util.TreeMap;
-
- import org.apache.poi.ss.util.CellAddress;
- import org.apache.poi.util.Internal;
- import org.apache.poi.util.LittleEndian;
-
- @Internal
- public class XSSFBCommentsTable extends XSSFBParser {
-
- private Map<CellAddress, XSSFBComment> comments = new TreeMap<CellAddress, XSSFBComment>(new CellAddressComparator());//String is the cellAddress A1
- private Queue<CellAddress> commentAddresses = new LinkedList<CellAddress>();
- private List<String> authors = new ArrayList<String>();
-
- //these are all used only during parsing, and they are mutable!
- private int authorId = -1;
- private CellAddress cellAddress = null;
- private XSSFBCellRange cellRange = null;
- private String comment = null;
- private StringBuilder authorBuffer = new StringBuilder();
-
-
- public XSSFBCommentsTable(InputStream is) throws IOException {
- super(is);
- parse();
- commentAddresses.addAll(comments.keySet());
- }
-
- @Override
- public void handleRecord(int id, byte[] data) throws XSSFBParseException {
- XSSFBRecordType recordType = XSSFBRecordType.lookup(id);
- switch (recordType) {
- case BrtBeginComment:
- int offset = 0;
- authorId = XSSFBUtils.castToInt(LittleEndian.getUInt(data)); offset += LittleEndian.INT_SIZE;
- cellRange = XSSFBCellRange.parse(data, offset, cellRange);
- offset+= XSSFBCellRange.length;
- //for strict parsing; confirm that firstRow==lastRow and firstCol==colLats (2.4.28)
- cellAddress = new CellAddress(cellRange.firstRow, cellRange.firstCol);
- break;
- case BrtCommentText:
- XSSFBRichStr xssfbRichStr = XSSFBRichStr.build(data, 0);
- comment = xssfbRichStr.getString();
- break;
- case BrtEndComment:
- comments.put(cellAddress, new XSSFBComment(cellAddress, authors.get(authorId), comment));
- authorId = -1;
- cellAddress = null;
- break;
- case BrtCommentAuthor:
- authorBuffer.setLength(0);
- XSSFBUtils.readXLWideString(data, 0, authorBuffer);
- authors.add(authorBuffer.toString());
- break;
- }
- }
-
-
- public Queue<CellAddress> getAddresses() {
- return commentAddresses;
- }
-
- public XSSFBComment get(CellAddress cellAddress) {
- if (cellAddress == null) {
- return null;
- }
- return comments.get(cellAddress);
- }
-
- private final static class CellAddressComparator implements Comparator<CellAddress> {
-
- @Override
- public int compare(CellAddress o1, CellAddress o2) {
- if (o1.getRow() < o2.getRow()) {
- return -1;
- } else if (o1.getRow() > o2.getRow()) {
- return 1;
- }
- if (o1.getColumn() < o2.getColumn()) {
- return -1;
- } else if (o1.getColumn() > o2.getColumn()) {
- return 1;
- }
- return 0;
- }
- }
- }
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