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Bugzilla 53010, patch from June 3: improved support for Continue records in drawing blocks 

git-svn-id: https://svn.apache.org/repos/asf/poi/branches/gsoc2012@1345858 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Yegor Kozlov 2012-06-04 08:08:47 +00:00
parent fca6f83f8c
commit de28fe9aff
9 changed files with 1106 additions and 1093 deletions
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25
src/java/org/apache/poi/hssf/model/InternalSheet.java
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@ -1508,31 +1508,10 @@ public final class InternalSheet {
return loc;
}
List<RecordBase> records = getRecords();
EscherAggregate r = EscherAggregate.createAggregate( records, loc, drawingManager );
int startloc = loc;
while ( loc + 1 < records.size()
&& records.get( loc ) instanceof DrawingRecord
&& (records.get( loc + 1 ) instanceof ObjRecord ||
records.get( loc + 1 ) instanceof TextObjectRecord) )
{
loc += 2;
if (records.get( loc ) instanceof NoteRecord) loc ++;
while ( loc + 1 < records.size()
&& records.get( loc ) instanceof ContinueRecord
&& (records.get( loc + 1 ) instanceof ObjRecord ||
records.get( loc + 1 ) instanceof TextObjectRecord) )
{
loc += 2;
if (records.get( loc ) instanceof NoteRecord) loc ++;
}
}
int endloc = loc-1;
for(int i = 0; i < (endloc - startloc + 1); i++)
records.remove(startloc);
records.add(startloc, r);
EscherAggregate.createAggregate( records, loc, drawingManager );
return startloc;
return loc;
}
/**

45
src/java/org/apache/poi/hssf/record/DrawingRecord.java
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@ -20,22 +20,21 @@ package org.apache.poi.hssf.record;
import org.apache.poi.util.LittleEndianOutput;
/**
* DrawingRecord (0x00EC)<p/>
*
*/
public final class DrawingRecord extends StandardRecord {
public static final short sid = 0x00EC;
private static final byte[] EMPTY_BYTE_ARRAY = { };
private static final byte[] EMPTY_BYTE_ARRAY = {};
private byte[] recordData;
private byte[] contd;
public DrawingRecord() {
recordData = EMPTY_BYTE_ARRAY;
recordData = EMPTY_BYTE_ARRAY;
}
public DrawingRecord(RecordInputStream in) {
recordData = in.readRemainder();
recordData = in.readRemainder();
}
public void processContinueRecord(byte[] record) {
@ -46,6 +45,7 @@ public final class DrawingRecord extends StandardRecord {
public void serialize(LittleEndianOutput out) {
out.write(recordData);
}
protected int getDataSize() {
return recordData.length;
}
@ -55,12 +55,12 @@ public final class DrawingRecord extends StandardRecord {
}
public byte[] getData() {
if(contd != null) {
byte[] newBuffer = new byte[ recordData.length + contd.length ];
System.arraycopy( recordData, 0, newBuffer, 0, recordData.length );
System.arraycopy( contd, 0, newBuffer, recordData.length, contd.length);
return newBuffer;
}
// if (continueData.size() != 0) {
// byte[] newBuffer = new byte[recordData.length + continueData.size()];
// System.arraycopy(recordData, 0, newBuffer, 0, recordData.length);
// System.arraycopy(continueData.toByteArray(), 0, newBuffer, recordData.length, continueData.size());
// return newBuffer;
// }
return recordData;
}
@ -69,21 +69,20 @@ public final class DrawingRecord extends StandardRecord {
}
public void setData(byte[] thedata) {
if (thedata == null) {
throw new IllegalArgumentException("data must not be null");
}
if (thedata == null) {
throw new IllegalArgumentException("data must not be null");
}
recordData = thedata;
}
public Object clone() {
DrawingRecord rec = new DrawingRecord();
rec.recordData = recordData.clone();
if (contd != null) {
// TODO - this code probably never executes
rec.contd = contd.clone();
}
return rec;
DrawingRecord rec = new DrawingRecord();
rec.recordData = recordData.clone();
if (contd != null) {
// TODO - this code probably never executes
rec.contd = contd.clone();
}
return rec;
}
}
}

1753
src/java/org/apache/poi/hssf/record/EscherAggregate.java
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16
src/java/org/apache/poi/hssf/record/RecordFactoryInputStream.java
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@ -338,14 +338,14 @@ public final class RecordFactoryInputStream {
}
if (_lastRecord instanceof DrawingGroupRecord) {
((DrawingGroupRecord) _lastRecord).processContinueRecord(contRec.getData());
return null;
}
if (_lastRecord instanceof DrawingRecord) {
((DrawingRecord) _lastRecord).processContinueRecord(contRec.getData());
return null;
}
if (_lastRecord instanceof UnknownRecord) {
//Gracefully handle records that we don't know about,
return null;
}
if (_lastRecord instanceof DrawingRecord) {
// ((DrawingRecord) _lastRecord).appendContinueRecord(contRec.getData());
return contRec;
}
if (_lastRecord instanceof UnknownRecord) {
//Gracefully handle records that we don't know about,
//that happen to be continued
return record;
}

313
src/testcases/org/apache/poi/hssf/model/TestDrawingAggregate.java
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@ -17,11 +17,7 @@
package org.apache.poi.hssf.model;
import junit.framework.TestCase;
import org.apache.poi.ddf.EscherClientDataRecord;
import org.apache.poi.ddf.EscherContainerRecord;
import org.apache.poi.ddf.EscherDggRecord;
import org.apache.poi.ddf.EscherRecord;
import org.apache.poi.ddf.EscherSpRecord;
import org.apache.poi.hssf.HSSFTestDataSamples;
import org.apache.poi.hssf.record.*;
import org.apache.poi.hssf.record.aggregates.RowRecordsAggregate;
@ -30,125 +26,27 @@ import org.apache.poi.hssf.usermodel.HSSFTestHelper;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.util.HexRead;
import java.io.ByteArrayInputStream;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.io.*;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
/**
* @author Yegor Kozlov
* @author Evgeniy Berlog
*/
public class TestDrawingAggregate extends TestCase {
/**
* Serialize escher aggregate, read back and assert that the drawing data is preserved.
*
* @param agg the aggregate to test
* @return verified aggregate (serialized and read back)
*/
public static EscherAggregate assertWriteAndReadBack(EscherAggregate agg) {
byte[] dgBytes = agg.serialize();
List<Record> dgRecords = RecordFactory.createRecords(new ByteArrayInputStream(dgBytes));
DrawingManager2 drawingManager = new DrawingManager2(new EscherDggRecord());
// create a dummy sheet consisting of our test data
InternalSheet sheet = InternalSheet.createSheet();
List<RecordBase> records = sheet.getRecords();
records.clear();
records.addAll(dgRecords);
records.add(EOFRecord.instance);
sheet.aggregateDrawingRecords(drawingManager, false);
assertEquals("drawing was not fully aggregated", 2, records.size());
assertTrue("expected EscherAggregate", records.get(0) instanceof EscherAggregate);
assertTrue("expected EOFRecord", records.get(1) instanceof EOFRecord);
EscherAggregate agg2 = (EscherAggregate) records.get(0);
assertEquals(agg.getEscherRecords().size(), agg2.getEscherRecords().size());
// assert that both pre- and after- serialize aggregates have the same xml representation
for (int i = 0; i < agg.getEscherRecords().size(); i++) {
EscherRecord r1 = agg.getEscherRecords().get(i);
EscherRecord r2 = agg2.getEscherRecords().get(i);
assertEquals(r1.toXml(), r2.toXml());
}
return agg2;
}
/**
* assert that mapping of Obj records to escher shape containers is the same in both aggregates
*/
public static void assertObjectMappingSame(EscherAggregate agg1, EscherAggregate agg2) {
// map EscherClientDataRecord and EscherTextboxRecord to their parents
Map<EscherRecord, EscherContainerRecord> map1 = new LinkedHashMap<EscherRecord, EscherContainerRecord>();
for (EscherRecord r : agg1.getEscherRecords()) mapShapeContainers(r, map1);
Map<EscherRecord, EscherContainerRecord> map2 = new LinkedHashMap<EscherRecord, EscherContainerRecord>();
for (EscherRecord r : agg2.getEscherRecords()) mapShapeContainers(r, map2);
assertEquals("aggregates have different number of shapes", map1.size(), map2.size());
// for each EscherClientDataRecord get parent SP_CONTAINER and corresponding ObjRecord
// verify that ObjRecord to
List<EscherRecord> l1 = new ArrayList<EscherRecord>(map1.keySet());
List<EscherRecord> l2 = new ArrayList<EscherRecord>(map2.keySet());
for (int i = 0; i < l1.size(); i++) {
EscherRecord e1 = l1.get(i);
EscherRecord e2 = l2.get(i);
ObjRecord obj1 = (ObjRecord) HSSFRecordTestHelper.getShapeToObjForTest(agg1).get(e1);
ObjRecord obj2 = (ObjRecord) HSSFRecordTestHelper.getShapeToObjForTest(agg2).get(e2);
CommonObjectDataSubRecord cmo1 = (CommonObjectDataSubRecord) obj1.getSubRecords().get(0);
CommonObjectDataSubRecord cmo2 = (CommonObjectDataSubRecord) obj2.getSubRecords().get(0);
assertEquals(cmo1.getObjectId(), cmo2.getObjectId());
assertEquals(obj1.toString(), obj2.toString());
// test that obj parents have the same shapeId, that is, that shape is the same
EscherContainerRecord p1 = map1.get(e1);
EscherContainerRecord p2 = map2.get(e2);
EscherSpRecord sp1 = (EscherSpRecord) p1.getChildById(EscherSpRecord.RECORD_ID);
EscherSpRecord sp2 = (EscherSpRecord) p2.getChildById(EscherSpRecord.RECORD_ID);
assertEquals(sp1.getShapeId(), sp2.getShapeId());
assertEquals("wrong shape2obj mapping", sp1.getShapeId() % 1024, cmo1.getObjectId());
assertEquals(p1.toXml(), p2.toXml());
}
}
/**
* recursively map EscherClientDataRecords to their parent shape containers:
* <p/>
* EscherClientDataRecord1 --> EscherContainerRecord1
* EscherClientDataRecord2 --> EscherContainerRecord2
* ...
* <p/>
* TODO: YK: this method can be avoided if we have EscherRecord.getParent()
*/
private static void mapShapeContainers(EscherRecord parent, Map<EscherRecord, EscherContainerRecord> map) {
if (parent.isContainerRecord()) {
if (parent.getRecordId() == EscherContainerRecord.SP_CONTAINER) {
// iterate over shape's children and search for EscherClientDataRecord
for (EscherRecord r : parent.getChildRecords()) {
if (r.getRecordId() == EscherClientDataRecord.RECORD_ID) {
map.put(r, (EscherContainerRecord) parent);
}
private static byte[] toByteArray(List<RecordBase> records){
ByteArrayOutputStream out = new ByteArrayOutputStream();
for(RecordBase rb : records) {
Record r = (Record)rb;
try {
out.write(r.serialize());
} catch (IOException e){
throw new RuntimeException(e);
}
}
} else {
for (EscherRecord ch : parent.getChildRecords()) {
mapShapeContainers(ch, map);
}
}
return out.toByteArray();
}
}
/**
* test reading drawing aggregate from a test file from Bugzilla 45129
@ -170,7 +68,10 @@ public class TestDrawingAggregate extends TestCase {
records.get(18) instanceof RowRecordsAggregate);
// records to be aggregated
List<RecordBase> dgRecords = records.subList(19, 388);
List<RecordBase> dgRecords = records.subList(19, 389);
// collect drawing records into a byte buffer.
byte[] dgBytes = toByteArray(dgRecords);
for (RecordBase rb : dgRecords) {
Record r = (Record) rb;
short sid = r.getSid();
@ -203,11 +104,162 @@ public class TestDrawingAggregate extends TestCase {
assertTrue("records.get(20) is expected to be Window2 but was " + records.get(20).getClass().getSimpleName(),
records.get(20) instanceof WindowTwoRecord);
EscherAggregate agg2 = assertWriteAndReadBack(agg);
assertObjectMappingSame(agg, agg2);
byte[] dgBytesAfterSave = agg.serialize();
assertEquals("different size of drawing data before and after save", dgBytes.length, dgBytesAfterSave.length);
assertTrue("drawing data brefpore and after save is different", Arrays.equals(dgBytes, dgBytesAfterSave));
}
/**
* Try to check file with such record sequence
* ...
* DrawingRecord
* ContinueRecord
* ObjRecord | TextObjRecord
* ...
*/
public void testSerializeDrawingBigger8k() {
HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("DrawingContinue.xls");
InternalWorkbook iworkbook = HSSFTestHelper.getWorkbookForTest(wb);
HSSFSheet sh = wb.getSheetAt(0);
InternalSheet isheet = HSSFTestHelper.getSheetForTest(sh);
List<RecordBase> records = isheet.getRecords();
// the sheet's drawing is not aggregated
assertEquals("wrong size of sheet records stream", 32, records.size());
// the last record before the drawing block
assertTrue(
"records.get(18) is expected to be RowRecordsAggregate but was " + records.get(18).getClass().getSimpleName(),
records.get(18) instanceof RowRecordsAggregate);
// records to be aggregated
List<RecordBase> dgRecords = records.subList(19, 26);
for (RecordBase rb : dgRecords) {
Record r = (Record) rb;
short sid = r.getSid();
// we expect that drawing block consists of either
// DrawingRecord or ContinueRecord or ObjRecord or TextObjectRecord
assertTrue(
sid == DrawingRecord.sid ||
sid == ContinueRecord.sid ||
sid == ObjRecord.sid ||
sid == NoteRecord.sid ||
sid == TextObjectRecord.sid);
}
// collect drawing records into a byte buffer.
byte[] dgBytes = toByteArray(dgRecords);
// the first record after the drawing block
assertTrue(
"records.get(26) is expected to be Window2",
records.get(26) instanceof WindowTwoRecord);
// aggregate drawing records.
// The subrange [19, 38] is expected to be replaced with a EscherAggregate object
DrawingManager2 drawingManager = iworkbook.findDrawingGroup();
int loc = isheet.aggregateDrawingRecords(drawingManager, false);
EscherAggregate agg = (EscherAggregate) records.get(loc);
assertEquals("wrong size of the aggregated sheet records stream", 26, records.size());
assertTrue(
"records.get(18) is expected to be RowRecordsAggregate but was " + records.get(18).getClass().getSimpleName(),
records.get(18) instanceof RowRecordsAggregate);
assertTrue("records.get(19) is expected to be EscherAggregate but was " + records.get(19).getClass().getSimpleName(),
records.get(19) instanceof EscherAggregate);
assertTrue("records.get(20) is expected to be Window2 but was " + records.get(20).getClass().getSimpleName(),
records.get(20) instanceof WindowTwoRecord);
byte[] dgBytesAfterSave = agg.serialize();
assertEquals("different size of drawing data before and after save", dgBytes.length, dgBytesAfterSave.length);
assertTrue("drawing data before and after save is different", Arrays.equals(dgBytes, dgBytesAfterSave));
}
public void testSerializeDrawingBigger8k_noAggregation() {
HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("DrawingContinue.xls");
InternalSheet isheet = HSSFTestHelper.getSheetForTest(wb.getSheetAt(0));
List<RecordBase> records = isheet.getRecords();
HSSFWorkbook wb2 = HSSFTestDataSamples.writeOutAndReadBack(wb);
InternalSheet isheet2 = HSSFTestHelper.getSheetForTest( wb2.getSheetAt(0));
List<RecordBase> records2 = isheet2.getRecords();
assertEquals(records.size(), records2.size());
for(int i = 0; i < records.size(); i++) {
RecordBase r1 = records.get(i);
RecordBase r2 = records2.get(i);
assertTrue(r1.getClass() == r2.getClass());
assertEquals(r1.getRecordSize(), r2.getRecordSize());
if(r1 instanceof Record ){
assertEquals(((Record)r1).getSid(), ((Record)r2).getSid());
assertTrue(Arrays.equals(((Record) r1).serialize(), ((Record) r2).serialize()));
}
}
}
public void testSerializeDrawingWithComments() throws IOException {
HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("DrawingAndComments.xls");
HSSFSheet sh = wb.getSheetAt(0);
InternalWorkbook iworkbook = HSSFTestHelper.getWorkbookForTest(wb);
InternalSheet isheet = HSSFTestHelper.getSheetForTest(sh);
List<RecordBase> records = isheet.getRecords();
// the sheet's drawing is not aggregated
assertEquals("wrong size of sheet records stream", 46, records.size());
// the last record before the drawing block
assertTrue(
"records.get(18) is expected to be RowRecordsAggregate but was " + records.get(18).getClass().getSimpleName(),
records.get(18) instanceof RowRecordsAggregate);
// records to be aggregated
List<RecordBase> dgRecords = records.subList(19, 39);
for (RecordBase rb : dgRecords) {
Record r = (Record) rb;
short sid = r.getSid();
// we expect that drawing block consists of either
// DrawingRecord or ContinueRecord or ObjRecord or TextObjectRecord
assertTrue(
sid == DrawingRecord.sid ||
sid == ContinueRecord.sid ||
sid == ObjRecord.sid ||
sid == NoteRecord.sid ||
sid == TextObjectRecord.sid);
}
// collect drawing records into a byte buffer.
byte[] dgBytes = toByteArray(dgRecords);
// the first record after the drawing block
assertTrue(
"records.get(39) is expected to be Window2",
records.get(39) instanceof WindowTwoRecord);
// aggregate drawing records.
// The subrange [19, 38] is expected to be replaced with a EscherAggregate object
DrawingManager2 drawingManager = iworkbook.findDrawingGroup();
int loc = isheet.aggregateDrawingRecords(drawingManager, false);
EscherAggregate agg = (EscherAggregate) records.get(loc);
assertEquals("wrong size of the aggregated sheet records stream", 27, records.size());
assertTrue(
"records.get(18) is expected to be RowRecordsAggregate but was " + records.get(18).getClass().getSimpleName(),
records.get(18) instanceof RowRecordsAggregate);
assertTrue("records.get(19) is expected to be EscherAggregate but was " + records.get(19).getClass().getSimpleName(),
records.get(19) instanceof EscherAggregate);
assertTrue("records.get(20) is expected to be Window2 but was " + records.get(20).getClass().getSimpleName(),
records.get(20) instanceof WindowTwoRecord);
byte[] dgBytesAfterSave = agg.serialize();
assertEquals("different size of drawing data before and after save", dgBytes.length, dgBytesAfterSave.length);
assertTrue("drawing data before and after save is different", Arrays.equals(dgBytes, dgBytesAfterSave));
}
public void testFileWithPictures() {
HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("ContinueRecordProblem.xls");
HSSFSheet sh = wb.getSheetAt(0);
@ -225,7 +277,7 @@ public class TestDrawingAggregate extends TestCase {
records.get(21) instanceof RowRecordsAggregate);
// records to be aggregated
List<RecordBase> dgRecords = records.subList(22, 299);
List<RecordBase> dgRecords = records.subList(22, 300);
for (RecordBase rb : dgRecords) {
Record r = (Record) rb;
short sid = r.getSid();
@ -237,6 +289,8 @@ public class TestDrawingAggregate extends TestCase {
sid == ObjRecord.sid ||
sid == TextObjectRecord.sid);
}
// collect drawing records into a byte buffer.
byte[] dgBytes = toByteArray(dgRecords);
// the first record after the drawing block
assertTrue(
@ -244,7 +298,7 @@ public class TestDrawingAggregate extends TestCase {
records.get(300) instanceof WindowTwoRecord);
// aggregate drawing records.
// The subrange [19, 388] is expected to be replaced with a EscherAggregate object
// The subrange [19, 299] is expected to be replaced with a EscherAggregate object
DrawingManager2 drawingManager = iworkbook.findDrawingGroup();
int loc = isheet.aggregateDrawingRecords(drawingManager, false);
EscherAggregate agg = (EscherAggregate) records.get(loc);
@ -258,9 +312,9 @@ public class TestDrawingAggregate extends TestCase {
assertTrue("records.get(23) is expected to be Window2 but was " + records.get(23).getClass().getSimpleName(),
records.get(23) instanceof WindowTwoRecord);
EscherAggregate agg2 = assertWriteAndReadBack(agg);
assertObjectMappingSame(agg, agg2);
byte[] dgBytesAfterSave = agg.serialize();
assertEquals("different size of drawing data before and after save", dgBytes.length, dgBytesAfterSave.length);
assertTrue("drawing data brefpore and after save is different", Arrays.equals(dgBytes, dgBytesAfterSave));
}
public void testUnhandledContinue() {
@ -972,10 +1026,9 @@ public class TestDrawingAggregate extends TestCase {
assertTrue("expected EOFRecord", records.get(1) instanceof EOFRecord);
EscherAggregate agg = (EscherAggregate) records.get(0);
// serialize, read back and assert that the drawing data is preserved
EscherAggregate agg2 = assertWriteAndReadBack(agg);
assertObjectMappingSame(agg, agg2);
byte[] dgBytesAfterSave = agg.serialize();
assertEquals("different size of drawing data before and after save", dgBytes.length, dgBytesAfterSave.length);
assertTrue("drawing data before and after save is different", Arrays.equals(dgBytes, dgBytesAfterSave));
}
public void testUnhandledContinue2() {
@ -1926,8 +1979,8 @@ public class TestDrawingAggregate extends TestCase {
EscherAggregate agg = (EscherAggregate) records.get(0);
EscherAggregate agg2 = assertWriteAndReadBack(agg);
assertObjectMappingSame(agg, agg2);
byte[] dgBytesAfterSave = agg.serialize();
assertEquals("different size of drawing data before and after save", dgBytes.length, dgBytesAfterSave.length);
assertTrue("drawing data brefpore and after save is different", Arrays.equals(dgBytes, dgBytesAfterSave));
}
}

34
src/testcases/org/apache/poi/hssf/record/HSSFRecordTestHelper.java
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@ -1,34 +0,0 @@
/*
* 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.hssf.record;
import org.apache.poi.ddf.EscherRecord;
import java.util.Map;
/**
* @author Evgeniy Berlog
* date: 30.05.12
*/
public class HSSFRecordTestHelper {
public static Map<EscherRecord, Record> getShapeToObjForTest(EscherAggregate agg){
return agg.shapeToObj;
}
}

13
src/testcases/org/apache/poi/hssf/record/TestDrawingRecord.java
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@ -49,17 +49,12 @@ public final class TestDrawingRecord extends TestCase {
out.write(cn.serialize());
List<Record> rec = RecordFactory.createRecords(new ByteArrayInputStream(out.toByteArray()));
assertEquals(1, rec.size());
assertEquals(2, rec.size());
assertTrue(rec.get(0) instanceof DrawingRecord);
assertTrue(rec.get(1) instanceof ContinueRecord);
//DrawingRecord.getData() should return concatenated data1 and data2
byte[] tmp = new byte[data1.length + data2.length];
System.arraycopy(data1, 0, tmp, 0, data1.length);
System.arraycopy(data2, 0, tmp, data1.length, data2.length);
DrawingRecord dg2 = (DrawingRecord)rec.get(0);
assertEquals(data1.length + data2.length, dg2.getData().length);
assertTrue(Arrays.equals(tmp, dg2.getData()));
assertTrue(Arrays.equals(data1, ((DrawingRecord)rec.get(0)).getData()));
assertTrue(Arrays.equals(data2, ((ContinueRecord)rec.get(1)).getData()));
}

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