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package com.fasterxml.jackson.databind.exc;

import com.fasterxml.jackson.core.JsonLocation;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.util.ClassUtil;

/**
 * General exception type used as the base class for all {@link JsonMappingException}s
 * that are due to input not mapping to target definition; these are typically
 * considered "client errors" since target type definition itself is not the root cause
 * but mismatching input. This is in contrast to {@link InvalidDefinitionException} which
 * signals a problem with target type definition and not input.
 *
 * This type is used as-is for some input problems, but in most cases there should be
 * more explicit subtypes to use.
 *
 * NOTE: name chosen to differ from `java.util.InputMismatchException` since while that
 * would have been better name, use of same overlapping name causes nasty issues
 * with IDE auto-completion, so slightly less optimal chosen.
 *
 * @since 2.9
 */
@SuppressWarnings("serial")
public class MismatchedInputException
    extends JsonMappingException
{
    /**
     * Type of value that was to be deserialized
     */
    protected Class _targetType;

    protected MismatchedInputException(JsonParser p, String msg) {
        this(p, msg, (JavaType) null);
    }

    protected MismatchedInputException(JsonParser p, String msg, JsonLocation loc) {
        super(p, msg, loc);
    }

    protected MismatchedInputException(JsonParser p, String msg, Class targetType) {
        super(p, msg);
        _targetType = targetType;
    }

    protected MismatchedInputException(JsonParser p, String msg, JavaType targetType) {
        super(p, msg);
        _targetType = ClassUtil.rawClass(targetType);
    }

    // Only to prevent super-class static method from getting called
    @Deprecated // as of 2.9
    public static MismatchedInputException from(JsonParser p, String msg) {
        return from(p, (Class) null, msg);
    }

    public static MismatchedInputException from(JsonParser p, JavaType targetType, String msg) {
        return new MismatchedInputException(p, msg, targetType);
    }

    public static MismatchedInputException from(JsonParser p, Class targetType, String msg) {
        return new MismatchedInputException(p, msg, targetType);
    }

    public MismatchedInputException setTargetType(JavaType t) {
        _targetType = t.getRawClass();
        return this;
    }

    /**
     * Accessor for getting intended target type, with which input did not match,
     * if known; `null` if not known for some reason.
     */
    public Class getTargetType() {
        return _targetType;
    }
}