001/*-------------------------------------------------------------------------+
002|                                                                          |
003| Copyright 2005-2011 The ConQAT Project                                   |
004|                                                                          |
005| Licensed under the Apache License, Version 2.0 (the "License");          |
006| you may not use this file except in compliance with the License.         |
007| You may obtain a copy of the License at                                  |
008|                                                                          |
009|    http://www.apache.org/licenses/LICENSE-2.0                            |
010|                                                                          |
011| Unless required by applicable law or agreed to in writing, software      |
012| distributed under the License is distributed on an "AS IS" BASIS,        |
013| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
014| See the License for the specific language governing permissions and      |
015| limitations under the License.                                           |
016+-------------------------------------------------------------------------*/
017package org.conqat.lib.commons.graph;
018
019import org.conqat.lib.commons.string.StringUtils;
020
021/**
022 * Exception indicating problems while invoking graphviz programs.
023 */
024public class GraphvizException extends Exception {
025
026        /** Version used for serialization. */
027        private static final long serialVersionUID = 1;
028
029        /** DOT error output. */
030        private final String output;
031
032        /**
033         * Create new exception. This is package visible as only classes from this
034         * package may create the excpetion.
035         * 
036         * @param output
037         *            the error output generated by DOT. Its first line is used a
038         *            exception message.
039         */
040        /* package */ GraphvizException(String output) {
041                super(StringUtils.getFirstLine(output));
042                this.output = output;
043        }
044
045        /** Get DOT's original output. */
046        public String getOutput() {
047                return output;
048        }
049}