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/*
* Copyright 2021 EPAM Systems, Inc
*
* See the NOTICE file distributed with this work for additional information
* regarding copyright ownership. Licensed 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 com.epam.deltix.qsrv.hf.pub.codec;
import com.epam.deltix.qsrv.hf.codec.CodecUtils;
import com.epam.deltix.qsrv.hf.pub.ExchangeCodec;
import com.epam.deltix.qsrv.hf.pub.md.*;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
/**
*
*/
public class StaticFieldLayout
extends FieldLayout
implements StaticFieldInfo
{
public StaticFieldLayout (RecordClassDescriptor owner, StaticDataField field) {
super (owner, field);
}
public void set (Object msgObject)
throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
// #7871: silently skip unbound field
if(!isBound())
return;
if (!hasAccessMethods())
setUsingField(msgObject);
else
setUsingMethod(msgObject);
}
public void setUsingMethod (Object msgObject)
throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
// special handling for IntegerDataType
final DataType dataType = getType();
final Method setter = getSetter();
// #7871: silently skip unbound field
if(setter == null)
return;
final Class fieldType = getSetterType();
final Class baseType = fieldType;
final String valueAsString = getField().getStaticValue();
if (valueAsString == null) {
if (!dataType.isNullable())
throw new IllegalArgumentException("Cannot assign null value to non-nullable field " + getName ());
if (hasNullifier())
getNullifier().invoke(msgObject);
else
setter.invoke (msgObject, MdUtil.getNullValue (dataType, fieldType));
}
else if (dataType instanceof IntegerDataType) {
final long value = ((Number) getValue()).longValue();
final Number min = CodecUtils.getMinLimit(dataType, false, baseType);
final Number max = CodecUtils.getMaxLimit(dataType, false, baseType);
final Number baseMin = CodecUtils.getLimit4BaseClass(false, baseType);
final Number baseMax = CodecUtils.getLimit4BaseClass(true, baseType);
if ((min != null && min.longValue() > value) ||
(baseMin != null && baseMin.longValue() > value) ||
(max != null && max.longValue() < value) ||
(baseMax != null && baseMax.longValue() < value)
) {
throw new IllegalArgumentException("Static value is out of range. Field " + getName() + " value " + value);
}
if (fieldType == int.class)
setter.invoke (msgObject, (int) value);
else if (fieldType == long.class)
setter.invoke (msgObject, value);
else if (fieldType == short.class)
setter.invoke (msgObject, (short) value);
else if (fieldType == byte.class)
setter.invoke (msgObject, (byte) value);
else
throw new RuntimeException(fieldType.getName());
} else if (dataType instanceof EnumDataType) {
setter.invoke(msgObject, getEnum());
} else if (dataType instanceof VarcharDataType) {
if (baseType == long.class) {
final int len = ((VarcharDataType) dataType).getLength();
final String value = getField().getStaticValue();
final long encodedValue = (value != null) ?
("-9223372036854775808".equals(value) ? ExchangeCodec.NULL : // temporary hack
len == 10 ? ExchangeCodec.codeToLong(value) : new AlphanumericCodec(len).encodeToLong(value)) :
ExchangeCodec.NULL;
setter.invoke (msgObject, encodedValue);
}
else
setter.invoke(msgObject, getValue());
} else if (dataType instanceof BooleanDataType && (fieldType == byte.class)) {
final Boolean v = (Boolean) getValue ();
byte bv = v ? BooleanDataType.TRUE : BooleanDataType.FALSE;
setter.invoke(msgObject, bv);
}
else
setter.invoke(msgObject, getValue());
}
public void setUsingField (Object msgObject)
throws IllegalArgumentException, IllegalAccessException
{
// special handling for IntegerDataType
final DataType dataType = getType();
final Field field = getJavaField();
// #7871: silently skip unbound field
if(field == null)
return;
final Class fieldType = field.getType();
final Class baseType = fieldType;
final String valueAsString = getField().getStaticValue();
if (valueAsString == null) {
if (!dataType.isNullable())
throw new IllegalArgumentException("Cannot assign null value to non-nullable field " + getName ());
set (MdUtil.getNullValue (dataType, fieldType), msgObject);
}
else if (dataType instanceof IntegerDataType) {
final long value = ((Number) getValue()).longValue();
final Number min = CodecUtils.getMinLimit(dataType, false, baseType);
final Number max = CodecUtils.getMaxLimit(dataType, false, baseType);
final Number baseMin = CodecUtils.getLimit4BaseClass(false, baseType);
final Number baseMax = CodecUtils.getLimit4BaseClass(true, baseType);
if ((min != null && min.longValue() > value) ||
(baseMin != null && baseMin.longValue() > value) ||
(max != null && max.longValue() < value) ||
(baseMax != null && baseMax.longValue() < value)
) {
throw new IllegalArgumentException("Static value is out of range. Field " + getName() + " value " + value);
}
if (fieldType == int.class)
field.setInt (msgObject, (int) value);
else if (fieldType == long.class)
field.setLong (msgObject, value);
else if (fieldType == short.class)
field.setShort (msgObject, (short) value);
else if (fieldType == byte.class)
field.setByte (msgObject, (byte) value);
else
throw new RuntimeException(fieldType.getName());
} else if (dataType instanceof EnumDataType) {
set(getEnum(), msgObject);
} else if (dataType instanceof VarcharDataType) {
if (baseType == long.class) {
final int len = ((VarcharDataType) dataType).getLength();
final String value = getField().getStaticValue();
final long encodedValue = (value != null) ?
("-9223372036854775808".equals(value) ? ExchangeCodec.NULL : // temporary hack
len == 10 ? ExchangeCodec.codeToLong(value) : new AlphanumericCodec(len).encodeToLong(value)) :
ExchangeCodec.NULL;
field.setLong(msgObject, encodedValue);
}
else
set(getValue(), msgObject);
} else if (dataType instanceof BooleanDataType && (fieldType == byte.class)) {
final Boolean v = (Boolean) getValue ();
byte bv = v ? BooleanDataType.TRUE : BooleanDataType.FALSE;
set(bv, msgObject);
}
else
set(getValue(), msgObject);
}
public Object getValue () {
return (getField ().getType ().parse (getField ().getStaticValue ()));
}
public boolean getBoolean () {
return (DataType.parseBoolean (getField ().getStaticValue ()));
}
public int getInt () {
return (DataType.parseInt (getField ().getStaticValue ()));
}
public long getLong () {
return (DataType.parseLong (getField ().getStaticValue ()));
}
public float getFloat () {
return (DataType.parseFloat (getField ().getStaticValue ()));
}
public double getDouble () {
return (DataType.parseDouble (getField ().getStaticValue ()));
}
public String getString () {
return (getField ().getStaticValue ());
}
private Object getEnum() {
final Field field = getJavaField();
if (field != null) {
final Class type = field.getType();
final Number value = (Number) getValue();
if (value == null)
return MdUtil.isIntegerType(type) ?
getEnum(type, EnumDataType.NULL) :
null;
return getEnum(type, value);
} else if (hasAccessMethods()) {
final Class type = getSetterType();
final Number value = (Number) getValue();
if (value == null)
return MdUtil.isIntegerType(type) ?
getEnum(type, EnumDataType.NULL) :
null;
return getEnum(type, value);
} else
return getField().getStaticValue();
}
private Object getEnum(Class type, Number value) {
if (value == null)
return null;
else if (type == byte.class)
return value.byteValue();
else if (type == short.class)
return value.shortValue();
else if (type == int.class)
return value.intValue();
else if (type == long.class)
return value.longValue();
else if (type == CharSequence.class || type == String.class)
return getString();
else {
return type.getEnumConstants()[value.intValue()];
}
}
}
