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OceanBaseConstant.java
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616 lines (513 loc) · 18.9 KB
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package sqlancer.oceanbase.ast;
import java.math.BigDecimal;
import java.math.BigInteger;
import sqlancer.IgnoreMeException;
import sqlancer.Randomly;
import sqlancer.oceanbase.OceanBaseSchema.OceanBaseDataType;
import sqlancer.oceanbase.ast.OceanBaseCastOperation.CastType;
public abstract class OceanBaseConstant implements OceanBaseExpression {
public boolean isInt() {
return false;
}
public boolean isNull() {
return false;
}
public boolean isDouble() {
return false;
}
public boolean isEmpty() {
return false;
}
public abstract static class OceanBaseNoPQSConstant extends OceanBaseConstant {
@Override
public boolean asBooleanNotNull() {
throw throwException();
}
private RuntimeException throwException() {
throw new UnsupportedOperationException("not applicable for PQS evaluation!");
}
@Override
public OceanBaseConstant isEquals(OceanBaseConstant rightVal) {
return null;
}
@Override
public OceanBaseConstant castAs(CastType type) {
throw throwException();
}
@Override
public String castAsString() {
throw throwException();
}
@Override
public OceanBaseConstant castAsDouble() {
throw throwException();
}
@Override
public OceanBaseDataType getType() {
throw throwException();
}
@Override
protected OceanBaseConstant isLessThan(OceanBaseConstant rightVal) {
throw throwException();
}
}
public static class OceanBaseDoubleConstant extends OceanBaseNoPQSConstant {
private final double val;
public OceanBaseDoubleConstant(double val) {
this.val = val;
if (Double.isInfinite(val) || Double.isNaN(val)) {
throw new IgnoreMeException();
}
}
@Override
public String getTextRepresentation() {
return String.valueOf(val);
}
@Override
public double getDouble() {
return this.val;
}
@Override
public long getInt() {
return (long) val;
}
@Override
public boolean asBooleanNotNull() {
return Double.compare(Math.abs(val), 0.0) != 0;
}
@Override
public OceanBaseConstant castAs(CastType type) {
if (type == CastType.SIGNED) {
long value = (long) val;
if (val - value >= 0.5) {
value = value + 1;
}
return new OceanBaseIntConstant(value, true);
} else if (type == CastType.UNSIGNED) {
long value = (long) val;
if (val - value >= 0.5) {
value = value + 1;
}
return new OceanBaseIntConstant(value, false);
} else {
throw new AssertionError();
}
}
@Override
public String castAsString() {
return String.valueOf(new BigDecimal(val)); // select IFNULL(1.713591018E9, '11') -> 1713591018
}
@Override
public boolean isDouble() {
return true;
}
@Override
protected OceanBaseConstant isLessThan(OceanBaseConstant rightVal) {
if (rightVal.isNull()) {
return OceanBaseConstant.createNullConstant();
} else if (rightVal instanceof OceanBaseIntConstant) {
return OceanBaseConstant.createBoolean(val < rightVal.getInt());
} else if (rightVal instanceof OceanBaseDoubleConstant) {
return OceanBaseConstant.createBoolean(val < rightVal.getDouble());
} else if (rightVal instanceof OceanBaseTextConstant) {
return isLessThan(rightVal.castAsDouble());
} else {
throw new AssertionError(rightVal);
}
}
@Override
public OceanBaseConstant isEquals(OceanBaseConstant rightVal) {
if (rightVal.isNull()) {
return OceanBaseConstant.createNullConstant();
} else if (rightVal instanceof OceanBaseIntConstant) {
return OceanBaseConstant.createBoolean(val == rightVal.getInt());
} else if (rightVal instanceof OceanBaseDoubleConstant) {
return OceanBaseConstant.createBoolean(val == rightVal.getDouble());
} else if (rightVal instanceof OceanBaseTextConstant) {
return isEquals(rightVal.castAsDouble());
} else {
throw new AssertionError(rightVal);
}
}
@Override
public OceanBaseDataType getType() {
return OceanBaseDataType.DOUBLE;
}
}
public static class OceanBaseTextConstant extends OceanBaseConstant {
private final String value;
private final boolean singleQuotes;
public OceanBaseTextConstant(String value) {
this.value = value;
singleQuotes = Randomly.getBoolean();
}
private void checkIfSmallFloatingPointText() {
boolean isSmallFloatingPointText = isString() && asBooleanNotNull()
&& castAs(CastType.SIGNED).getInt() == 0;
if (isSmallFloatingPointText) {
throw new IgnoreMeException();
}
}
@Override
public boolean isNull() {
return value.equalsIgnoreCase("NULL");
}
@Override
public boolean isEmpty() {
// "" " "
if (value.isEmpty()) {
return true;
} else {
for (int i = 0; i < value.length(); i++) {
String sub = value.substring(i, i + 1);
if (!sub.equals(" ")) {
return false;
}
}
return true;
}
}
@Override
public boolean asBooleanNotNull() {
for (int i = value.length(); i >= 1; i--) {
try {
String substring = value.substring(0, i);
Double val = Double.valueOf(substring);
return val != 0 && !Double.isNaN(val);
} catch (NumberFormatException e) {
// ignore
}
}
return false;
}
@Override
public String getTextRepresentation() {
StringBuilder sb = new StringBuilder();
String quotes = singleQuotes ? "'" : "\"";
sb.append(quotes);
String text = value.replace(quotes, quotes + quotes).replace("\\", "\\\\");
sb.append(text);
sb.append(quotes);
return sb.toString();
}
@Override
public OceanBaseConstant isEquals(OceanBaseConstant rightVal) {
if (isNull() || rightVal.isNull()) {
return OceanBaseConstant.createNullConstant();
} else if (rightVal.isInt()) {
checkIfSmallFloatingPointText();
if (asBooleanNotNull()) {
throw new IgnoreMeException();
}
return castAs(CastType.SIGNED).isEquals(rightVal);
} else if (rightVal instanceof OceanBaseDoubleConstant) {
return castAsDouble().isEquals(rightVal);
} else if (rightVal.isString()) {
if (isEmpty() && rightVal.isEmpty()) {
return OceanBaseConstant.createBoolean(true);
} else {
return OceanBaseConstant.createBoolean(value.equalsIgnoreCase(rightVal.getString()));
}
} else {
throw new AssertionError(rightVal);
}
}
@Override
public String getString() {
return value;
}
@Override
public boolean isString() {
return true;
}
@Override
public OceanBaseConstant castAs(CastType type) {
if (isNull()) {
return OceanBaseConstant.createNullConstant();
}
if (type == CastType.SIGNED || type == CastType.UNSIGNED) {
String value = this.value;
while (value.startsWith(" ") || value.startsWith("\t") || value.startsWith("\n")) {
if (value.startsWith("\n")) {
throw new IgnoreMeException();
}
value = value.substring(1);
}
for (int i = value.length(); i >= 1; i--) {
try {
String substring = value.substring(0, i);
long val = Long.parseLong(substring);
return OceanBaseConstant.createIntConstant(val, type == CastType.SIGNED);
} catch (NumberFormatException e) {
}
}
return OceanBaseConstant.createIntConstant(0, type == CastType.SIGNED);
} else {
throw new AssertionError();
}
}
@Override
public OceanBaseConstant castAsDouble() {
String value = this.value;
while (value.startsWith(" ") || value.startsWith("\t") || value.startsWith("\n")) {
if (value.startsWith("\n")) {
throw new IgnoreMeException();
}
value = value.substring(1);
}
for (int i = value.length(); i >= 1; i--) {
try {
String substring = value.substring(0, i);
double val = Double.parseDouble(substring);
return OceanBaseConstant.createDoubleConstant(val);
} catch (NumberFormatException e) {
}
}
return OceanBaseConstant.createIntConstant(0);
}
@Override
public String castAsString() {
return value;
}
@Override
public OceanBaseDataType getType() {
return OceanBaseDataType.VARCHAR;
}
@Override
protected OceanBaseConstant isLessThan(OceanBaseConstant rightVal) {
if (isNull() || rightVal.isNull()) {
return OceanBaseConstant.createNullConstant();
} else if (rightVal.isInt()) {
if (asBooleanNotNull()) {
throw new IgnoreMeException();
}
checkIfSmallFloatingPointText();
return castAs(rightVal.isSigned() ? CastType.SIGNED : CastType.UNSIGNED).isLessThan(rightVal);
} else if (rightVal instanceof OceanBaseDoubleConstant) {
return castAsDouble().isLessThan(rightVal);
} else if (rightVal.isString()) {
throw new IgnoreMeException();
} else {
throw new AssertionError(rightVal);
}
}
}
public static class OceanBaseIntConstant extends OceanBaseConstant {
private final long value;
private final String stringRepresentation;
private final boolean isSigned;
public OceanBaseIntConstant(long value, boolean isSigned) {
this.value = value;
this.isSigned = isSigned;
if (value == 0 && Randomly.getBoolean()) {
stringRepresentation = "FALSE";
} else if (value == 1 && Randomly.getBoolean()) {
stringRepresentation = "TRUE";
} else {
if (isSigned) {
stringRepresentation = String.valueOf(value);
} else {
stringRepresentation = Long.toUnsignedString(value);
}
}
}
public OceanBaseIntConstant(long value, String stringRepresentation) {
this.value = value;
this.stringRepresentation = stringRepresentation;
isSigned = true;
}
@Override
public boolean isInt() {
return true;
}
@Override
public long getInt() {
return value;
}
@Override
public boolean asBooleanNotNull() {
return value != 0;
}
@Override
public String getTextRepresentation() {
return stringRepresentation;
}
@Override
public OceanBaseConstant isEquals(OceanBaseConstant rightVal) {
if (rightVal.isInt()) {
return OceanBaseConstant.createBoolean(new BigInteger(getStringRepr())
.compareTo(new BigInteger(((OceanBaseIntConstant) rightVal).getStringRepr())) == 0);
} else if (rightVal.isNull()) {
return OceanBaseConstant.createNullConstant();
} else if (rightVal.isString()) {
if (rightVal.asBooleanNotNull()) {
throw new IgnoreMeException();
}
return isEquals(rightVal.castAs(CastType.SIGNED));
} else if (rightVal instanceof OceanBaseDoubleConstant) {
return OceanBaseConstant.createBoolean(value == rightVal.getDouble());
} else {
throw new AssertionError(rightVal);
}
}
@Override
public OceanBaseConstant castAs(CastType type) {
if (type == CastType.SIGNED) {
return new OceanBaseIntConstant(value, true);
} else if (type == CastType.UNSIGNED) {
return new OceanBaseIntConstant(value, false);
} else {
throw new AssertionError();
}
}
@Override
public String castAsString() {
if (isSigned) {
return String.valueOf(value);
} else {
return Long.toUnsignedString(value);
}
}
@Override
public OceanBaseConstant castAsDouble() {
return this;
}
@Override
public OceanBaseDataType getType() {
return OceanBaseDataType.INT;
}
@Override
public boolean isSigned() {
return isSigned;
}
private String getStringRepr() {
if (isSigned) {
return String.valueOf(value);
} else {
return Long.toUnsignedString(value);
}
}
@Override
protected OceanBaseConstant isLessThan(OceanBaseConstant rightVal) {
if (rightVal.isInt()) {
long intVal = rightVal.getInt();
if (isSigned && rightVal.isSigned()) {
return OceanBaseConstant.createBoolean(value < intVal);
} else {
return OceanBaseConstant.createBoolean(new BigInteger(getStringRepr())
.compareTo(new BigInteger(((OceanBaseIntConstant) rightVal).getStringRepr())) < 0);
}
} else if (rightVal.isNull()) {
return OceanBaseConstant.createNullConstant();
} else if (rightVal.isString()) {
if (rightVal.asBooleanNotNull()) {
throw new IgnoreMeException();
}
return isLessThan(rightVal.castAs(isSigned ? CastType.SIGNED : CastType.UNSIGNED));
} else if (rightVal instanceof OceanBaseDoubleConstant) {
return OceanBaseConstant.createBoolean(value < rightVal.getDouble());
} else {
throw new AssertionError(rightVal);
}
}
}
public static class OceanBaseNullConstant extends OceanBaseConstant {
@Override
public boolean isNull() {
return true;
}
@Override
public boolean asBooleanNotNull() {
throw new UnsupportedOperationException(this.toString());
}
@Override
public String getTextRepresentation() {
return "NULL";
}
@Override
public OceanBaseConstant isEquals(OceanBaseConstant rightVal) {
return OceanBaseConstant.createNullConstant();
}
@Override
public OceanBaseConstant castAs(CastType type) {
return this;
}
@Override
public String castAsString() {
return "NULL";
}
@Override
public OceanBaseConstant castAsDouble() {
return this;
}
@Override
public OceanBaseDataType getType() {
return null;
}
@Override
protected OceanBaseConstant isLessThan(OceanBaseConstant rightVal) {
return this;
}
}
public long getInt() {
throw new UnsupportedOperationException();
}
public double getDouble() {
throw new UnsupportedOperationException();
}
public boolean isSigned() {
return false;
}
public String getString() {
throw new UnsupportedOperationException();
}
public boolean isString() {
return false;
}
public static OceanBaseConstant createNullConstant() {
return new OceanBaseNullConstant();
}
public static OceanBaseConstant createIntConstant(long value) {
return new OceanBaseIntConstant(value, true);
}
public static OceanBaseConstant createIntConstant(long value, boolean signed) {
return new OceanBaseIntConstant(value, signed);
}
public static OceanBaseConstant createUnsignedIntConstant(long value) {
return new OceanBaseIntConstant(value, false);
}
public static OceanBaseConstant createIntConstantNotAsBoolean(long value) {
return new OceanBaseIntConstant(value, String.valueOf(value));
}
public static OceanBaseConstant createDoubleConstant(double value) {
return new OceanBaseDoubleConstant(value);
}
@Override
public OceanBaseConstant getExpectedValue() {
return this;
}
public abstract boolean asBooleanNotNull();
public abstract String getTextRepresentation();
public static OceanBaseConstant createFalse() {
return OceanBaseConstant.createIntConstant(0);
}
public static OceanBaseConstant createBoolean(boolean isTrue) {
return OceanBaseConstant.createIntConstant(isTrue ? 1 : 0);
}
public static OceanBaseConstant createTrue() {
return OceanBaseConstant.createIntConstant(1);
}
@Override
public String toString() {
return getTextRepresentation();
}
public abstract OceanBaseConstant isEquals(OceanBaseConstant rightVal);
public abstract OceanBaseConstant castAs(CastType type);
public abstract String castAsString();
public abstract OceanBaseConstant castAsDouble();
public static OceanBaseConstant createStringConstant(String string) {
return new OceanBaseTextConstant(string);
}
public abstract OceanBaseDataType getType();
protected abstract OceanBaseConstant isLessThan(OceanBaseConstant rightVal);
}