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WebTestResultParser.java | 0% | 0% | 0% | 0% |
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/*
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* ====================================================================
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*
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* The Apache Software License, Version 1.1
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*
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* Copyright (c) 2001-2003 The Apache Software Foundation. All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The end-user documentation included with the redistribution, if
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* any, must include the following acknowlegement:
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* "This product includes software developed by the
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* Apache Software Foundation (http://www.apache.org/)."
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* Alternately, this acknowlegement may appear in the software itself,
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* if and wherever such third-party acknowlegements normally appear.
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*
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* 4. The names "The Jakarta Project", "Cactus" and "Apache Software
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* Foundation" must not be used to endorse or promote products
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* derived from this software without prior written permission. For
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* written permission, please contact apache@apache.org.
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*
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* 5. Products derived from this software may not be called "Apache"
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* nor may "Apache" appear in their names without prior written
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* permission of the Apache Group.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*
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*/
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package org.apache.cactus.client;
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import org.apache.cactus.WebTestResult;
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/**
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* Parse a string representing a Test result and transform it into a
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* <code>WebTestResult</code> object.
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*
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* @see WebTestResult
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*
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* @author <a href="mailto:vmassol@apache.org">Vincent Massol</a>
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*
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* @version $Id: WebTestResultParser.java,v 1.10 2003/05/26 11:45:25 cmlenz Exp $
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*/
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public class WebTestResultParser |
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{ |
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/**
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* Parsed exception class name
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*/
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protected String exceptionClassname;
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/**
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* Parsed exception message
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*/
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protected String exceptionMessage;
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/**
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* Parsed exception stack trace
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*/
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protected String exceptionStacktrace;
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/**
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* Parse a string and transform it into a <code>WebTestResult</code> object.
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*
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* @param theData the string to parse
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* @return the <code>WebTestResult</code> object corresponding to the data
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* string
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* @exception ParsingException if an error happens during parsing
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*/
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public WebTestResult parse(String theData) throws ParsingException |
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{ |
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String buffer; |
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WebTestResult result; |
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buffer = readRootElement(theData); |
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if (buffer.length() == 0)
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{ |
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result = new WebTestResult();
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} |
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else
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{ |
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buffer = readExceptionClassname(buffer); |
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buffer = readExceptionMessage(buffer); |
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buffer = readExceptionStacktrace(buffer); |
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result = new WebTestResult(this.exceptionClassname, |
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this.exceptionMessage, this.exceptionStacktrace); |
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} |
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return result;
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} |
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/**
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* Read the {@link WebTestResult#XML_ROOT_ELEMENT} portion.
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*
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* @param theData the string buffer to parse
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* @return the string buffer minus what has been read
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* @exception ParsingException if an error happens during parsing
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*/
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protected String readRootElement(String theData) throws ParsingException |
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{ |
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String startRootString = "<" + WebTestResult.XML_ROOT_ELEMENT + ">"; |
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String endRootString = "</" + WebTestResult.XML_ROOT_ELEMENT + ">"; |
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String buffer; |
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// It is possible that some end of line character are inserted at the
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// end of the string. This is valid, which is why we trim the string
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// before perfoming the checks.
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String trimmedData = theData.trim(); |
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if (trimmedData.startsWith(startRootString)
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&& trimmedData.endsWith(endRootString)) |
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{ |
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buffer = trimmedData.substring(startRootString.length(), |
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trimmedData.length() - endRootString.length()); |
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} |
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else
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{ |
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throw new ParsingException(formatError(theData)); |
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} |
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return buffer;
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} |
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/**
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* Read the {@link WebTestResult#XML_EXCEPTION_CLASSNAME_ATTRIBUTE} portion
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* and extract the exception classname.
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*
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* @param theData the string buffer to parse
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* @return the string buffer minus what has been read
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* @exception ParsingException if an error happens during parsing
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*/
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protected String readExceptionClassname(String theData)
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throws ParsingException
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{ |
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String startString = "<" + WebTestResult.XML_EXCEPTION_ELEMENT + " " |
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+ WebTestResult.XML_EXCEPTION_CLASSNAME_ATTRIBUTE + "=\"";
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String endString = "</" + WebTestResult.XML_EXCEPTION_ELEMENT + ">"; |
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String buffer; |
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if (theData.startsWith(startString) && theData.endsWith(endString))
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{ |
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int pos = theData.indexOf('\"', startString.length());
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this.exceptionClassname = theData.substring(startString.length(),
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pos); |
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buffer = theData.substring(startString.length() |
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+ this.exceptionClassname.length() + 2,
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theData.length() - endString.length()); |
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} |
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else
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{ |
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throw new ParsingException(formatError(theData)); |
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} |
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return buffer;
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} |
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/**
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* Read the {@link WebTestResult#XML_EXCEPTION_MESSAGE_ELEMENT} portion
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* and extract the exception message.
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*
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* @param theData the string buffer to parse
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* @return the string buffer minus what has been read
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* @exception ParsingException if an error happens during parsing
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*/
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protected String readExceptionMessage(String theData)
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throws ParsingException
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{ |
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String startString = "<" + WebTestResult.XML_EXCEPTION_MESSAGE_ELEMENT
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+ "><![CDATA[";
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String endString = "]]></"
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+ WebTestResult.XML_EXCEPTION_MESSAGE_ELEMENT + ">";
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String buffer; |
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if (theData.startsWith(startString))
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{ |
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int pos = theData.indexOf(endString, startString.length());
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this.exceptionMessage = theData.substring(startString.length(),
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pos); |
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buffer = theData.substring(pos + endString.length()); |
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} |
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else
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{ |
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throw new ParsingException(formatError(theData)); |
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} |
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return buffer;
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} |
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/**
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* Read the {@link WebTestResult#XML_EXCEPTION_STACKTRACE_ELEMENT} portion
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* and extract the exception stacktrace.
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*
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* @param theData the string buffer to parse
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* @return the string buffer minus what has been read
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* @exception ParsingException if an error happens during parsing
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*/
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protected String readExceptionStacktrace(String theData)
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throws ParsingException
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{ |
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String startString = "<"
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+ WebTestResult.XML_EXCEPTION_STACKTRACE_ELEMENT + "><![CDATA[";
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String endString = "]]></"
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+ WebTestResult.XML_EXCEPTION_STACKTRACE_ELEMENT + ">";
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String buffer; |
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if (theData.startsWith(startString))
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{ |
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int pos = theData.indexOf(endString, startString.length());
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this.exceptionStacktrace = theData.substring(startString.length(),
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pos); |
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buffer = theData.substring(pos + endString.length()); |
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} |
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else
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{ |
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throw new ParsingException(formatError(theData)); |
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} |
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return buffer;
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} |
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/**
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* @param theData the data to format
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* @return the first 100 characters (or less if the data has fewer
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* characters) of the invalid data as it can be very big
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*/
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private String formatError(String theData)
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{ |
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int nbChars = theData.length() > 100 ? 100 : theData.length();
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return "Not a valid response. First " + nbChars |
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+ " characters of the reponse: ["
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+ theData.substring(0, nbChars) + "]";
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} |
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} |
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