pashko/apache-poi
1
0
Fork 0
mirror of https://github.com/apache/poi.git synced 2026-02-27 12:30:08 +08:00
Code Issues Packages Projects Releases Wiki Activity

Introduce getComplexSize()

Browse Source 
To not materialize the array only to get its size
This commit is contained in:
Dominik Stadler 2026-01-18 16:30:13 +01:00
parent e54ba888e2
commit c9b37678cc
3 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
poi/src/main/java/org/apache/poi/ddf/EscherArrayProperty.java
View File

@ -118,7 +118,7 @@ public final class EscherArrayProperty extends EscherComplexProperty implements
private void rewriteArray(int numberOfElements, boolean copyToNewLen) {
int expectedArraySize = numberOfElements * getActualSizeOfElements(getSizeOfElements()) + FIXED_SIZE;
resizeComplexData(expectedArraySize, copyToNewLen ? expectedArraySize : getComplexData().length);
resizeComplexData(expectedArraySize, copyToNewLen ? expectedArraySize : getComplexSize());
}
public int getNumberOfElementsInMemory() {
@ -181,7 +181,7 @@ public final class EscherArrayProperty extends EscherComplexProperty implements
// the code here seems to depend on complexData already being
// sized correctly via the constructor
int cdLen = getComplexData().length;
int cdLen = getComplexSize();
int arraySize = getActualSizeOfElements(sizeOfElements) * numElements;
if (arraySize == cdLen) {
// The stored data size in the simple block excludes the header size
@ -190,7 +190,7 @@ public final class EscherArrayProperty extends EscherComplexProperty implements
}
setComplexData(data, offset);
}
return getComplexData().length;
return getComplexSize();
}
/**
@ -202,7 +202,7 @@ public final class EscherArrayProperty extends EscherComplexProperty implements
@Override
public int serializeSimplePart(byte[] data, int pos) {
LittleEndian.putShort(data, pos, getId());
int recordSize = getComplexData().length;
int recordSize = getComplexSize();
if (!sizeIncludesHeaderSize) {
recordSize -= 6;
}

4
poi/src/main/java/org/apache/poi/ddf/EscherComplexProperty.java
View File

@ -135,6 +135,10 @@ public class EscherComplexProperty extends EscherProperty {
return complexData;
}
public int getComplexSize() {
return complexSize;
}
public int setComplexData(byte[] complexData) {
return setComplexData(complexData, 0);
}

2
poi/src/main/java/org/apache/poi/ddf/EscherPropertyFactory.java
View File

@ -81,7 +81,7 @@ public final class EscherPropertyFactory {
pos += eap.setArrayData(data, pos);
} else if (p instanceof EscherComplexProperty) {
EscherComplexProperty ecp = (EscherComplexProperty)p;
int cdLen = ecp.getComplexData().length;
int cdLen = ecp.getComplexSize();
int leftover = data.length - pos;
if (leftover < cdLen) {
throw new IllegalStateException("Could not read complex escher property, length was " +