| package org.apache.maven.toolchain.building; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.maven.building.Problem; |
| |
| /** |
| * @author Robert Scholte |
| * @since 3.3.0 |
| */ |
| public class ToolchainsBuildingException |
| extends Exception |
| { |
| |
| private final List<Problem> problems; |
| |
| /** |
| * Creates a new exception with the specified problems. |
| * |
| * @param problems The problems that cause this exception, must not be {@code null}. |
| */ |
| public ToolchainsBuildingException( List<Problem> problems ) |
| { |
| super( toMessage( problems ) ); |
| |
| this.problems = new ArrayList<>(); |
| if ( problems != null ) |
| { |
| this.problems.addAll( problems ); |
| } |
| } |
| |
| /** |
| * Gets the problems that caused this exception. |
| * |
| * @return The problems that caused this exception, never {@code null}. |
| */ |
| public List<Problem> getProblems() |
| { |
| return problems; |
| } |
| |
| private static String toMessage( List<Problem> problems ) |
| { |
| StringWriter buffer = new StringWriter( 1024 ); |
| |
| PrintWriter writer = new PrintWriter( buffer ); |
| |
| writer.print( problems.size() ); |
| writer.print( ( problems.size() == 1 ) ? " problem was " : " problems were " ); |
| writer.print( "encountered while building the effective toolchains" ); |
| writer.println(); |
| |
| for ( Problem problem : problems ) |
| { |
| writer.print( "[" ); |
| writer.print( problem.getSeverity() ); |
| writer.print( "] " ); |
| writer.print( problem.getMessage() ); |
| String location = problem.getLocation(); |
| if ( !location.isEmpty() ) |
| { |
| writer.print( " @ " ); |
| writer.print( location ); |
| } |
| writer.println(); |
| } |
| |
| return buffer.toString(); |
| } |
| } |