131 lines
3.3 KiB
131 lines
3.3 KiB
/*
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* Copyright (c) 2007, 2009, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package java.nio.file;
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/**
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* Unchecked exception thrown when path string cannot be converted into a
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* {@link Path} because the path string contains invalid characters, or
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* the path string is invalid for other file system specific reasons.
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*/
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public class InvalidPathException
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extends IllegalArgumentException
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{
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static final long serialVersionUID = 4355821422286746137L;
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private String input;
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private int index;
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/**
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* Constructs an instance from the given input string, reason, and error
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* index.
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*
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* @param input the input string
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* @param reason a string explaining why the input was rejected
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* @param index the index at which the error occurred,
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* or <tt>-1</tt> if the index is not known
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*
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* @throws NullPointerException
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* if either the input or reason strings are <tt>null</tt>
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*
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* @throws IllegalArgumentException
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* if the error index is less than <tt>-1</tt>
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*/
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public InvalidPathException(String input, String reason, int index) {
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super(reason);
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if ((input == null) || (reason == null))
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throw new NullPointerException();
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if (index < -1)
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throw new IllegalArgumentException();
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this.input = input;
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this.index = index;
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}
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/**
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* Constructs an instance from the given input string and reason. The
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* resulting object will have an error index of <tt>-1</tt>.
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*
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* @param input the input string
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* @param reason a string explaining why the input was rejected
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*
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* @throws NullPointerException
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* if either the input or reason strings are <tt>null</tt>
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*/
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public InvalidPathException(String input, String reason) {
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this(input, reason, -1);
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}
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/**
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* Returns the input string.
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*
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* @return the input string
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*/
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public String getInput() {
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return input;
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}
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/**
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* Returns a string explaining why the input string was rejected.
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*
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* @return the reason string
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*/
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public String getReason() {
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return super.getMessage();
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}
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/**
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* Returns an index into the input string of the position at which the
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* error occurred, or <tt>-1</tt> if this position is not known.
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*
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* @return the error index
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*/
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public int getIndex() {
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return index;
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}
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/**
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* Returns a string describing the error. The resulting string
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* consists of the reason string followed by a colon character
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* (<tt>':'</tt>), a space, and the input string. If the error index is
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* defined then the string <tt>" at index "</tt> followed by the index, in
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* decimal, is inserted after the reason string and before the colon
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* character.
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*
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* @return a string describing the error
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*/
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public String getMessage() {
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StringBuffer sb = new StringBuffer();
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sb.append(getReason());
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if (index > -1) {
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sb.append(" at index ");
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sb.append(index);
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}
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sb.append(": ");
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sb.append(input);
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return sb.toString();
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}
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}
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