/* * This file is part of the Heritrix web crawler (crawler.archive.org). * * Licensed to the Internet Archive (IA) by one or more individual * contributors. * * The IA 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. */ package org.archive.util; import java.io.BufferedReader; import java.io.Closeable; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.Reader; import java.io.UnsupportedEncodingException; import java.nio.charset.Charset; import java.util.Properties; /** * Miscellaneous useful methods. * * @author gojomo & others */ public class IAUtils { public final static Charset UTF8 = Charset.forName("utf-8"); final public static String COMMONS_VERSION = loadCommonsVersion(); final public static String PUBLISHER = loadCommons("publisher"); final public static String OPERATOR = loadCommons("operator"); final public static String WAT_WARCINFO_DESCRIPTION = loadCommons("wat.warcinfo.description"); final public static String WARC_FORMAT = loadCommons("warc.format"); final public static String WARC_FORMAT_CONFORMS_TO = loadCommons("warc.format.conforms.to"); public static String loadCommonsVersion() { InputStream input = IAUtils.class.getResourceAsStream( "/org/archive/ia-web-commons-version.txt"); if (input == null) { return "UNKNOWN"; } BufferedReader br = null; String version; try { br = new BufferedReader(new InputStreamReader(input)); version = br.readLine(); br.readLine(); } catch (IOException e) { return e.getMessage(); } finally { closeQuietly(br); } return version.trim(); } public static String loadCommons(String id) { InputStream input = IAUtils.class.getResourceAsStream("/org/archive/commons.properties"); Reader reader = null; if (input == null) { return "UNKNOWN"; } try { reader = new InputStreamReader(input, "UTF-8"); } catch (UnsupportedEncodingException e) { return "UNKNOWN"; } Properties prop = new Properties(); try { prop.load(reader); } catch (IOException e1) { return "UNKNOWN"; } if (prop.getProperty(id) != null) { return prop.getProperty(id); } else { return "UNKNOWN"; } } public static void closeQuietly(Object input) { if(input == null || ! (input instanceof Closeable)) { return; } try { ((Closeable)input).close(); } catch (IOException ioe) { // ignore } } }