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A collection of utility classes that might be useful.

There is a newer version: 1.0.4

package cz.jalasoft.util.converter;

/**
 * An error that might appear during conversion.
 *
 * Created by Honza Lastovicka on 18.4.15.
 */
public class ConversionException extends Exception {

    private static final String MESSAGE_PATTERN = "An error occurred during converting value %s of type %s to type %s.";

    private final Object source;
    private final Class sourceType;
    private final Class targetType;
    private final String reason;

    public ConversionException(Object source, Class sourceType, Class targetType) {
        this.source = source;
        this.sourceType = sourceType;
        this.targetType = targetType;
        this.reason = null;
    }

    public ConversionException(Object source, Class sourceType, Class targetType, Exception cause) {
        super(cause);

        this.source = source;
        this.sourceType = sourceType;
        this.targetType = targetType;
        this.reason = null;
    }

    public ConversionException(Object source, Class sourceType, Class targetType, String reason) {

        this.source = source;
        this.sourceType = sourceType;
        this.targetType = targetType;
        this.reason = reason;
    }

    public Object getSource() {
        return source;
    }

    public Class getSourceType() {
        return sourceType;
    }

    public Class getTargetType() {
        return targetType;
    }

    @Override
    public String getMessage() {
        return String.format(MESSAGE_PATTERN, source, sourceType, targetType) + (reason != null ? " Reason: " + reason : "");
    }
}