org.apache.poi.hssf.record.ExternSheetRecord Maven / Gradle / Ivy
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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
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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,
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See the License for the specific language governing permissions and
limitations under the License.
==================================================================== */
package org.apache.poi.hssf.record;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.util.LittleEndianOutput;
/**
* EXTERNSHEET (0x0017)
* A List of Indexes to EXTERNALBOOK (supplemental book) Records
*
* @author Libin Roman (Vista Portal LDT. Developer)
*/
public class ExternSheetRecord extends StandardRecord {
public final static short sid = 0x0017;
private List _list;
private static final class RefSubRecord {
public static final int ENCODED_SIZE = 6;
/** index to External Book Block (which starts with a EXTERNALBOOK record) */
private int _extBookIndex;
private int _firstSheetIndex; // may be -1 (0xFFFF)
private int _lastSheetIndex; // may be -1 (0xFFFF)
/** a Constructor for making new sub record
*/
public RefSubRecord(int extBookIndex, int firstSheetIndex, int lastSheetIndex) {
_extBookIndex = extBookIndex;
_firstSheetIndex = firstSheetIndex;
_lastSheetIndex = lastSheetIndex;
}
/**
* @param in the RecordInputstream to read the record from
*/
public RefSubRecord(RecordInputStream in) {
this(in.readShort(), in.readShort(), in.readShort());
}
public int getExtBookIndex(){
return _extBookIndex;
}
public int getFirstSheetIndex(){
return _firstSheetIndex;
}
public int getLastSheetIndex(){
return _lastSheetIndex;
}
public String toString() {
StringBuffer buffer = new StringBuffer();
buffer.append("extBook=").append(_extBookIndex);
buffer.append(" firstSheet=").append(_firstSheetIndex);
buffer.append(" lastSheet=").append(_lastSheetIndex);
return buffer.toString();
}
public void serialize(LittleEndianOutput out) {
out.writeShort(_extBookIndex);
out.writeShort(_firstSheetIndex);
out.writeShort(_lastSheetIndex);
}
}
public ExternSheetRecord() {
_list = new ArrayList();
}
public ExternSheetRecord(RecordInputStream in) {
_list = new ArrayList();
int nItems = in.readShort();
for (int i = 0 ; i < nItems ; ++i) {
RefSubRecord rec = new RefSubRecord(in);
_list.add(rec);
}
}
/**
* @return number of REF structures
*/
public int getNumOfRefs() {
return _list.size();
}
/**
* adds REF struct (ExternSheetSubRecord)
* @param rec REF struct
*/
public void addREFRecord(RefSubRecord rec) {
_list.add(rec);
}
/** returns the number of REF Records, which is in model
* @return number of REF records
*/
public int getNumOfREFRecords() {
return _list.size();
}
public String toString() {
StringBuffer sb = new StringBuffer();
int nItems = _list.size();
sb.append("[EXTERNSHEET]\n");
sb.append(" numOfRefs = ").append(nItems).append("\n");
for (int i=0; i < nItems; i++) {
sb.append("refrec #").append(i).append(": ");
sb.append(getRef(i).toString());
sb.append('\n');
}
sb.append("[/EXTERNSHEET]\n");
return sb.toString();
}
protected int getDataSize() {
return 2 + _list.size() * RefSubRecord.ENCODED_SIZE;
}
public void serialize(LittleEndianOutput out) {
int nItems = _list.size();
out.writeShort(nItems);
for (int i = 0; i < nItems; i++) {
getRef(i).serialize(out);
}
}
private RefSubRecord getRef(int i) {
return _list.get(i);
}
/**
* return the non static version of the id for this record.
*/
public short getSid() {
return sid;
}
public int getExtbookIndexFromRefIndex(int refIndex) {
return getRef(refIndex).getExtBookIndex();
}
/**
* @return -1 if not found
*/
public int findRefIndexFromExtBookIndex(int extBookIndex) {
int nItems = _list.size();
for (int i = 0; i < nItems; i++) {
if (getRef(i).getExtBookIndex() == extBookIndex) {
return i;
}
}
return -1;
}
public int getFirstSheetIndexFromRefIndex(int extRefIndex) {
return getRef(extRefIndex).getFirstSheetIndex();
}
/**
* @return index of newly added ref
*/
public int addRef(int extBookIndex, int firstSheetIndex, int lastSheetIndex) {
_list.add(new RefSubRecord(extBookIndex, firstSheetIndex, lastSheetIndex));
return _list.size() - 1;
}
public int getRefIxForSheet(int externalBookIndex, int sheetIndex) {
int nItems = _list.size();
for (int i = 0; i < nItems; i++) {
RefSubRecord ref = getRef(i);
if (ref.getExtBookIndex() != externalBookIndex) {
continue;
}
if (ref.getFirstSheetIndex() == sheetIndex && ref.getLastSheetIndex() == sheetIndex) {
return i;
}
}
return -1;
}
public static ExternSheetRecord combine(ExternSheetRecord[] esrs) {
ExternSheetRecord result = new ExternSheetRecord();
for (int i = 0; i < esrs.length; i++) {
ExternSheetRecord esr = esrs[i];
int nRefs = esr.getNumOfREFRecords();
for (int j=0; j