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package io.oopsie.sdk;
import io.oopsie.sdk.error.DataTypeException;
import java.time.Instant;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
/**
* Holds information for a {@link Resource} entity.
*/
public class Row {
private final Map columnMetas;
private final Map row;
/**
* Internally used by SDK to create rows of fetched data.
* @param data the row data
*/
Row(Map columnMetas, Map data) {
this.columnMetas = columnMetas;
this.row = data;
}
/**
* Returns the value object related to passed in column name.
* @param name name of the column to fetch
* @return the value of the named column.
*/
public Object get(String name) {
Object value = null;
DataType dataType = columnMetas.get(name).getDataType();
switch(dataType) {
case BOOLEAN:
value = getBool(name);
break;
case CHANGED_AT:
value = getChangedAt(name);
break;
case CREATED_AT:
value = getCreatedAt(name);
break;
case TIMESTAMP:
value = getTimestamp(name);
break;
case UUID:
value = getUUID(name);
break;
case CREATED_BY:
value = getCreatedBy(name);
break;
case CHANGED_BY:
value = getChangedBy(name);
break;
case COLLECTION_LIST:
value = getList(name);
break;
case COLLECTION_MAP:
value = getMap(name);
break;
case COLLECTION_SET:
value = getSet(name);
break;
case NUMBER_BIG_INTEGER:
value = getLong(name);
break;
case NUMBER_DECIMAL:
value = getDouble(name);
break;
case NUMBER_INTEGER:
value = getInt(name);
break;
case TEXT:
value = getString(name);
break;
case TUPLE:
value = getTuple(name);
break;
default:
throw new DataTypeException("Data tyep not in use: " + dataType.name());
}
return value;
}
/**
* Returns the value for name as Boolean.
*
* @param name the name of the row column
* @throws DataTypeException if not able to cast to Boolean
* @return valus as Boolean
* @throws IllegalArgumentException if name is not part of this row
*/
public Boolean getBool(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.BOOLEAN);
Object val = row.get(name);
if(val == null) {
return null;
}
return (Boolean)row.get(name);
}
/**
* Returns the value for name as Integer.
*
* @param name the name of the row column
* @return valus as Integer
* @throws DataTypeException if not able to cast to Integer
* @throws IllegalArgumentException if name is not part of this row
*/
public Integer getInt(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.NUMBER_INTEGER);
Object val = row.get(name);
if(val == null) {
return null;
}
return (Integer)row.get(name);
}
/**
* Returns the value for name as Long.
*
* @param name the name of the row column
* @return valus as Long
* @throws DataTypeException if not able to cast to Long
* @throws IllegalArgumentException if name is not part of this row
*/
public Long getLong(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.NUMBER_BIG_INTEGER);
Object val = row.get(name);
if(val == null) {
return null;
}
// response from json produces Integers and Strings when numbers are low
// calling this method expects Long value ..
long primitive;
if(val instanceof Integer) {
primitive = ((Integer)val).longValue();
} else if(val instanceof String) {
primitive = Long.valueOf((String)val);
} else {
primitive =(Long)val;
}
return primitive;
}
/**
* Returns the value for name as Double.
*
* @param name the name of the row column
* @return valus as double
* @throws DataTypeException if not able to cast to Double
* @throws IllegalArgumentException if name is not part of this row
*/
public Double getDouble(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.NUMBER_DECIMAL);
Object val = row.get(name);
if(val == null) {
return null;
}
// response from json is inconsistent, produces Integers, Longs and String
//when no decimals are present ...
// calling this method expects Double value ..
double primitive;
if(val instanceof Integer) {
primitive = (double)((Integer)val);
} else if(val instanceof Long) {
primitive = (double)((Long)val);
} else if(val instanceof String) {
primitive = Double.valueOf(val.toString());
} else {
primitive =(Double)val;
}
return primitive;
}
/**
* Returns the value for name as String.
*
* @param name the name of the row column
* @return valus as String
* @throws DataTypeException if not able to cast to String
* @throws IllegalArgumentException if name is not part of this row
*/
public String getString(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.TEXT);
Object val = row.get(name);
if(val == null) {
return null;
}
return val.toString();
}
/**
* Returns the value for name as Date.
*
* @param name the name of the row column
* @return valus as Date
* @throws DataTypeException if not able to cast to Date
* @throws IllegalArgumentException if name is not part of this row
*/
public Date getTimestamp(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.TIMESTAMP);
Object val = row.get(name);
if(val == null) {
return null;
}
Instant instant = Instant.parse(val.toString());
Date parsedTimestamp = Date.from(instant);
return parsedTimestamp;
}
/**
* Returns the value for name as Date.
*
* @param name the name of the row column
* @return valus as Date
* @throws DataTypeException if not able to cast to Date
* @throws IllegalArgumentException if name is not part of this row
*/
public Date getChangedAt(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.CHANGED_AT);
Object val = row.get(name);
if(val == null) {
return null;
}
Instant instant = Instant.parse(val.toString());
Date parsedTimestamp = Date.from(instant);
return parsedTimestamp;
}
/**
* Returns the value for name as Date.
*
* @param name the name of the row column
* @return valus as Date
* @throws DataTypeException if not able to cast to Date
* @throws IllegalArgumentException if name is not part of this row
*/
public Date getCreatedAt(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.CREATED_AT);
Object val = row.get(name);
if(val == null) {
return null;
}
Instant instant = Instant.parse(val.toString());
Date parsedTimestamp = Date.from(instant);
return parsedTimestamp;
}
/**
* Returns the value for name as Set.
*
* @param name the name of the row column
* @return valus as Set
* @throws DataTypeException if not able to cast to Set
* @throws IllegalArgumentException if name is not part of this row
*/
public Set getSet(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.COLLECTION_SET);
Object val = row.get(name);
if(val == null) {
return null;
}
return new HashSet((List)val);
}
/**
* Returns the value for name as List.
*
* @param name the name of the row column
* @return valus as List
* @throws DataTypeException if not able to cast to List
* @throws IllegalArgumentException if name is not part of this row
*/
public List getList(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.COLLECTION_LIST);
Object val = row.get(name);
if(val == null) {
return null;
}
return (List)val;
}
/**
* Returns the value for name as Map.
*
* @param name the name of the row column
* @return valus as Map
* @throws DataTypeException if not able to cast to Map
* @throws IllegalArgumentException if name is not part of this row
*/
public Map getMap(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.COLLECTION_MAP);
Object val = row.get(name);
if(val == null) {
return null;
}
return (Map)val;
}
/**
* Returns the tuple value for name as List.
*
* @param name the name of the row column
* @return valus as List
* @throws DataTypeException if not able to cast to List
* @throws IllegalArgumentException if name is not part of this row
*/
public List getTuple(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.TUPLE);
Object val = row.get(name);
if(val == null) {
return null;
}
return (List)val;
}
/**
* Returns the value for name as UUID.
*
* @param name the name of the row column
* @return value as UUID
* @throws DataTypeException if not able to cast to UUID
* @throws IllegalArgumentException if name is not part of this row
*/
public UUID getUUID(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.UUID);
Object val = row.get(name);
if(val == null) {
return null;
}
return UUID.fromString(val.toString());
}
/**
* Returns the value for name as UUID.
*
* @param name the name of the row column
* @return value as UUID
* @throws DataTypeException if not able to cast to UUID
* @throws IllegalArgumentException if name is not part of this row
*/
public UUID getChangedBy(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.CHANGED_BY);
Object val = row.get(name);
if(val == null) {
return null;
}
return UUID.fromString(val.toString());
}
/**
* Returns the value for name as UUID.
*
* @param name the name of the row column
* @return value as UUID
* @throws DataTypeException if not able to cast to UUID
* @throws IllegalArgumentException if name is not part of this row
*/
public UUID getCreatedBy(String name) throws DataTypeException, IllegalArgumentException {
checkNameAndType(name, DataType.CREATED_BY);
Object val = row.get(name);
if(val == null) {
return null;
}
return UUID.fromString(val.toString());
}
/**
* Returns the meta data for the specified row column.
* @param name the name of the column
* @return row column meta data
*/
public ResultSet.RowColumnMetaData getMeta(String name) {
return columnMetas.get(name);
}
private boolean isNameValid(String name) throws IllegalArgumentException {
return columnMetas.keySet().contains(name);
}
private void checkNameAndType(String name, DataType expected) {
if(!isNameValid(name)) {
throw new IllegalArgumentException(name + " is not a valid column name in this row.");
}
DataType colType = getMeta(name).getDataType();
if(!colType.equals(expected)) {
throw new DataTypeException(
"Can't cast " + colType.getHumanName() + " to "
+ expected.getHumanName() + ".");
}
}
/**
* Returns a map of all values mapped to their attribute namnes useful for
* in conjuction with {@link SaveStatement#withParams(java.util.Map)} when only changing
* a few of the {@link Resource} entity's values before saving the data. As
* of now only HTTP PUT (updating all) values is supported. In the future
* a we will support HHTP PATCH, i.e. updating an entity partitially without
* having to sewt all values when calling save.
* @return a map will all values mapped to their attribute names.
*/
public Map getAsParams() {
return new HashMap(row);
}
/**
* Prints out the row columns and their values.
* @return string
*/
@Override
public String toString() {
String string = "";
for(String col : columnMetas.keySet()) {
String val = row.get(col) != null ? row.get(col).toString() : "null";
string = String.join("", string, col, "=", val , "\n");
}
return string;
}
}
