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h2database
提交 78018191 authored 作者: Evgenij Ryazanov's avatar Evgenij Ryazanov
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Move exception handler to top parseEWKB() method

上级 573e605d
隐藏空白字符变更
内嵌 并排
正在显示 包含 103 行增加 和 104 行删除
h2/src/main/org/h2/util/geometry/EWKBUtils.java
浏览文件 @ 78018191
......@@ -269,7 +269,11 @@ public final class EWKBUtils {
* output target
*/
public static void parseEWKB(byte[] ewkb, Target target) {
parseEWKB(new EWKBSource(ewkb), target, 0, 0);
try {
parseEWKB(new EWKBSource(ewkb), target, 0, 0);
} catch (ArrayIndexOutOfBoundsException e) {
throw new IllegalArgumentException();
}
}
/**
......@@ -286,120 +290,115 @@ public final class EWKBUtils {
* root geometry (will be determined from the EWKB instead)
*/
private static void parseEWKB(EWKBSource source, Target target, int parentType, int parentSrid) {
try {
// Read byte order of a next geometry
switch (source.readByte()) {
case 0:
source.bigEndian = true;
break;
case 1:
source.bigEndian = false;
break;
default:
// Read byte order of a next geometry
switch (source.readByte()) {
case 0:
source.bigEndian = true;
break;
case 1:
source.bigEndian = false;
break;
default:
throw new IllegalArgumentException();
}
// Type contains type of a geometry and additional flags
int type = source.readInt();
// PostGIS extensions
boolean useZ = (type & EWKB_Z) != 0;
boolean useM = (type & EWKB_M) != 0;
int srid = (type & EWKB_SRID) != 0 ? source.readInt() : 0;
// Preserve parent SRID unconditionally
if (parentType != 0) {
srid = parentSrid;
}
// OGC 06-103r4
type &= 0xffff;
switch (type / 1_000) {
case DIMENSION_SYSTEM_XYZ:
useZ = true;
break;
case DIMENSION_SYSTEM_XYZM:
useZ = true;
//$FALL-THROUGH$
case DIMENSION_SYSTEM_XYM:
useM = true;
}
type %= 1_000;
switch (type) {
case POINT:
if (parentType != 0 && parentType != MULTI_POINT && parentType != GEOMETRY_COLLECTION) {
throw new IllegalArgumentException();
}
// Type contains type of a geometry and additional flags
int type = source.readInt();
// PostGIS extensions
boolean useZ = (type & EWKB_Z) != 0;
boolean useM = (type & EWKB_M) != 0;
int srid = (type & EWKB_SRID) != 0 ? source.readInt() : 0;
// Preserve parent SRID unconditionally
if (parentType != 0) {
srid = parentSrid;
target.startPoint(srid);
addCoordinate(source, target, useZ, useM, 0, 1);
break;
case LINE_STRING: {
if (parentType != 0 && parentType != MULTI_LINE_STRING && parentType != GEOMETRY_COLLECTION) {
throw new IllegalArgumentException();
}
// OGC 06-103r4
type &= 0xffff;
switch (type / 1_000) {
case DIMENSION_SYSTEM_XYZ:
useZ = true;
break;
case DIMENSION_SYSTEM_XYZM:
useZ = true;
//$FALL-THROUGH$
case DIMENSION_SYSTEM_XYM:
useM = true;
int numPoints = source.readInt();
if (numPoints < 0 || numPoints == 1) {
throw new IllegalArgumentException();
}
type %= 1_000;
switch (type) {
case POINT:
if (parentType != 0 && parentType != MULTI_POINT && parentType != GEOMETRY_COLLECTION) {
throw new IllegalArgumentException();
}
target.startPoint(srid);
addCoordinate(source, target, useZ, useM, 0, 1);
break;
case LINE_STRING: {
if (parentType != 0 && parentType != MULTI_LINE_STRING && parentType != GEOMETRY_COLLECTION) {
throw new IllegalArgumentException();
}
int numPoints = source.readInt();
if (numPoints < 0 || numPoints == 1) {
throw new IllegalArgumentException();
}
target.startLineString(srid, numPoints);
for (int i = 0; i < numPoints; i++) {
addCoordinate(source, target, useZ, useM, i, numPoints);
}
break;
target.startLineString(srid, numPoints);
for (int i = 0; i < numPoints; i++) {
addCoordinate(source, target, useZ, useM, i, numPoints);
}
case POLYGON: {
if (parentType != 0 && parentType != MULTI_POLYGON && parentType != GEOMETRY_COLLECTION) {
throw new IllegalArgumentException();
}
int numInner = source.readInt() - 1;
if (numInner < 0) {
throw new IllegalArgumentException();
}
int size = source.readInt();
// Size may be 0 (EMPTY) or 4+
if (size < 0 || size >= 1 && size <= 3) {
throw new IllegalArgumentException();
}
if (size == 0 && numInner > 0) {
throw new IllegalArgumentException();
}
target.startPolygon(srid, numInner, size);
if (size > 0) {
addRing(source, target, useZ, useM, size);
for (int i = 0; i < numInner; i++) {
size = source.readInt();
// Size may be 0 (EMPTY) or 4+
if (size < 0 || size >= 1 && size <= 3) {
throw new IllegalArgumentException();
}
target.startPolygonInner(size);
addRing(source, target, useZ, useM, size);
break;
}
case POLYGON: {
if (parentType != 0 && parentType != MULTI_POLYGON && parentType != GEOMETRY_COLLECTION) {
throw new IllegalArgumentException();
}
int numInner = source.readInt() - 1;
if (numInner < 0) {
throw new IllegalArgumentException();
}
int size = source.readInt();
// Size may be 0 (EMPTY) or 4+
if (size < 0 || size >= 1 && size <= 3) {
throw new IllegalArgumentException();
}
if (size == 0 && numInner > 0) {
throw new IllegalArgumentException();
}
target.startPolygon(srid, numInner, size);
if (size > 0) {
addRing(source, target, useZ, useM, size);
for (int i = 0; i < numInner; i++) {
size = source.readInt();
// Size may be 0 (EMPTY) or 4+
if (size < 0 || size >= 1 && size <= 3) {
throw new IllegalArgumentException();
}
target.endNonEmptyPolygon();
target.startPolygonInner(size);
addRing(source, target, useZ, useM, size);
}
break;
target.endNonEmptyPolygon();
}
case MULTI_POINT:
case MULTI_LINE_STRING:
case MULTI_POLYGON:
case GEOMETRY_COLLECTION: {
if (parentType != 0 && parentType != GEOMETRY_COLLECTION) {
throw new IllegalArgumentException();
}
int numItems = source.readInt();
if (numItems < 0) {
throw new IllegalArgumentException();
}
target.startCollection(type, srid, numItems);
for (int i = 0; i < numItems; i++) {
Target innerTarget = target.startCollectionItem(i, numItems);
parseEWKB(source, innerTarget, type, srid);
target.endCollectionItem(innerTarget, i, numItems);
}
target.endCollection(type);
break;
break;
}
case MULTI_POINT:
case MULTI_LINE_STRING:
case MULTI_POLYGON:
case GEOMETRY_COLLECTION: {
if (parentType != 0 && parentType != GEOMETRY_COLLECTION) {
throw new IllegalArgumentException();
}
default:
int numItems = source.readInt();
if (numItems < 0) {
throw new IllegalArgumentException();
}
} catch (ArrayIndexOutOfBoundsException e) {
e.printStackTrace();
target.startCollection(type, srid, numItems);
for (int i = 0; i < numItems; i++) {
Target innerTarget = target.startCollectionItem(i, numItems);
parseEWKB(source, innerTarget, type, srid);
target.endCollectionItem(innerTarget, i, numItems);
}
target.endCollection(type);
break;
}
default:
throw new IllegalArgumentException();
}
}
......
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