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/*
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* Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.net;
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/**
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* Checked exception thrown to indicate that a string could not be parsed as a
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* URI reference.
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*
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* @author Mark Reinhold
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* @see URI
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* @since 1.4
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*/
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public class URISyntaxException
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extends Exception
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{
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private static final long serialVersionUID = 2137979680897488891L;
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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 could not be parsed
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* @param index The index at which the parse 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 URISyntaxException(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 could not be parsed
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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 URISyntaxException(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 could not be parsed.
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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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* parse 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 parse 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 parse 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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