juneau-core/juneau-marshall/src/main/java/org/apache/juneau/InvalidDataConversionException.java

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package org.apache.juneau;

import static org.apache.juneau.internal.StringUtils.*;

import java.text.*;

import org.apache.juneau.json.*;
import org.apache.juneau.reflect.*;

/**
 * General invalid conversion exception.
 *
 * <p>
 * Exception that gets thrown if you try to perform an invalid conversion, such as when calling
 * {@code ObjectMap.getInt(...)} on a non-numeric <c>String</c>.
 */
public final class InvalidDataConversionException extends FormattedRuntimeException {

	private static final long serialVersionUID = 1L;

	/**
	 * Constructor.
	 *
	 * @param cause The cause of this exception.
	 * @param message The {@link MessageFormat}-style message.
	 * @param args Optional {@link MessageFormat}-style arguments.
	 */
	public InvalidDataConversionException(Throwable cause, String message, Object... args) {
		super(cause, getMessage(cause, message, null), args);
	}

	/**
	 * @param toType Attempting to convert to this class type.
	 * @param cause The cause.
	 * @param value The value being converted.
	 */
	public InvalidDataConversionException(Object value, Class<?> toType, Exception cause) {
		this(cause, "Invalid data conversion from type ''{0}'' to type ''{1}''.  Value={2}.", name(value), name(toType), value(value));
	}

	/**
	 * @param toType Attempting to convert to this class type.
	 * @param cause The cause.
	 * @param value The value being converted.
	 */
	public InvalidDataConversionException(Object value, ClassMeta<?> toType, Exception cause) {
		this(cause, "Invalid data conversion from type ''{0}'' to type ''{1}''.  Value={2}.", name(value), stringify(toType), value(value));
	}

	private static String value(Object o) {
		if (o instanceof Class)
			return "'" + name(o) + "'";
		return SimpleJsonSerializer.DEFAULT == null ? "'" + o.toString() + "'" : SimpleJsonSerializer.DEFAULT.toString(o);
	}

	private static String name(Class<?> c) {
		return ClassInfo.of(c).getFullName();
	}

	private static String name(Object o) {
		return ClassInfo.of(o).getFullName();
	}
}