| package org.apache.maven.dist.tools; |
| |
| /* |
| * 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.IOException; |
| |
| import org.jsoup.Jsoup; |
| import org.jsoup.nodes.Document; |
| |
| /** |
| * Reads a url with Jsoup, retrying multiple times in case of IOException. |
| */ |
| public class JsoupRetry |
| { |
| public static final int MAX_RETRY = 3; |
| |
| public static final int WAIT_RETRY_SECONDS = 10; |
| |
| public static Document get( String url ) |
| throws IOException |
| { |
| for ( int i = 1; i <= MAX_RETRY; i++ ) |
| { |
| try |
| { |
| return Jsoup.connect( url ) |
| .userAgent( "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:25.0) Gecko/20100101 Firefox/25.0" ) |
| .maxBodySize( 0 ) |
| .get(); |
| } |
| catch ( IOException ioe ) |
| { |
| System.err.println( "IOException try " + i + " while reading " + url + ": " + ioe.getClass() + " " |
| + ioe.getMessage() ); |
| |
| if ( i == MAX_RETRY ) |
| { |
| throw new IOException( "IOException while reading " + url, ioe ); |
| } |
| } |
| |
| try |
| { |
| Thread.sleep( WAIT_RETRY_SECONDS * 1000 ); |
| } |
| catch ( InterruptedException e ) |
| { |
| // not expected to happen |
| } |
| } |
| |
| return null; |
| } |
| } |