@Override
public double getDouble(final String key) {
final Number number = this.extractNumber(this.findLastTag(key));
if (number == null) {
return 0.0;
}
return number.doubleValue();
}
/**
* Looks up the given key in the given map, converting the result into a {@link Double}. First,
* {@link #getNumber(Map,Object)} is invoked. If the result is null, then null is returned.
* Otherwise, the double value of the resulting {@link Number} is returned.
*
* @param map the map whose value to look up
* @param key the key whose value to look up in that map
* @return a {@link Double} or null
*/
public static Double getDouble(Map map, Object key) {
Number answer = getNumber(map, key);
if (answer == null) {
return null;
} else if (answer instanceof Double) {
return (Double) answer;
}
return new Double(answer.doubleValue());
}
/** Return a double parsed from the given string, possibly formatted with a "%" sign */
public static double parseDouble(String val) throws NumberFormatException, ParseException {
NumberFormat formatPercent = NumberFormat.getPercentInstance(Locale.US); // for zoom factor
if (val.indexOf("%") == -1) { // not in percent format !
return Double.parseDouble(val);
}
// else it's a percent format -> parse it
Number n = formatPercent.parse(val);
return n.doubleValue();
}
public void putByGlobalType(long i, Number element) {
if (globalType == Type.INT || type == Type.INT) {
int anElement = element.intValue();
put(i, anElement);
} else if (globalType == Type.FLOAT) {
float anElement = element.floatValue();
put(i, anElement);
} else if (globalType == Type.DOUBLE) {
double anElement = element.doubleValue();
put(i, anElement);
}
}
/**
* @return a double parsed from the value associated with the given key in the given Properties.
* returns "def" in key wasn't found, or if a parsing error occured. If "value" contains a "%"
* sign, we use a <code>NumberFormat.getPercentInstance</code> to convert it to a double.
*/
public static double parseProperty(Properties preferences, String key, double def) {
NumberFormat formatPercent = NumberFormat.getPercentInstance(Locale.US); // for zoom factor
String val = preferences.getProperty(key);
if (val == null) return def;
if (val.indexOf("%") == -1) { // not in percent format !
try {
return Double.parseDouble(val);
} catch (NumberFormatException nfe) {
nfe.printStackTrace();
return def;
}
}
// else it's a percent format -> parse it
try {
Number n = formatPercent.parse(val);
return n.doubleValue();
} catch (ParseException ex) {
ex.printStackTrace();
return def;
}
}
@Override
public void assign(Number value, long offset) {
// note here that the final put will take care of the offset
for (long i = offset; i < length(); i++) put(i, value.doubleValue());
}
@Override
public void assign(Number value, int offset) {
for (int i = offset; i < length(); i++) put(i, value.doubleValue());
}
/**
* Helper method to try to call appropriate write method for given untyped Object. At this point,
* no structural conversions should be done, only simple basic types are to be coerced as
* necessary.
*
* @param value Non-null value to write
*/
protected void _writeSimpleObject(Object value) throws IOException, JsonGenerationException {
/* 31-Dec-2009, tatu: Actually, we could just handle some basic
* types even without codec. This can improve interoperability,
* and specifically help with TokenBuffer.
*/
if (value == null) {
writeNull();
return;
}
if (value instanceof String) {
writeString((String) value);
return;
}
if (value instanceof Number) {
Number n = (Number) value;
if (n instanceof Integer) {
writeNumber(n.intValue());
return;
} else if (n instanceof Long) {
writeNumber(n.longValue());
return;
} else if (n instanceof Double) {
writeNumber(n.doubleValue());
return;
} else if (n instanceof Float) {
writeNumber(n.floatValue());
return;
} else if (n instanceof Short) {
writeNumber(n.shortValue());
return;
} else if (n instanceof Byte) {
writeNumber(n.byteValue());
return;
} else if (n instanceof BigInteger) {
writeNumber((BigInteger) n);
return;
} else if (n instanceof BigDecimal) {
writeNumber((BigDecimal) n);
return;
// then Atomic types
} else if (n instanceof AtomicInteger) {
writeNumber(((AtomicInteger) n).get());
return;
} else if (n instanceof AtomicLong) {
writeNumber(((AtomicLong) n).get());
return;
}
} else if (value instanceof byte[]) {
writeBinary((byte[]) value);
return;
} else if (value instanceof Boolean) {
writeBoolean(((Boolean) value).booleanValue());
return;
} else if (value instanceof AtomicBoolean) {
writeBoolean(((AtomicBoolean) value).get());
return;
}
throw new IllegalStateException(
"No ObjectCodec defined for the generator, can only serialize simple wrapper types (type passed "
+ value.getClass().getName()
+ ")");
}
public double getStrokeMiterLimitFactor() {
Number value = (Number) getAttribute(AttributeKeys.STROKE_MITER_LIMIT);
return (value != null) ? value.doubleValue() : 10f;
}