Showing the changes to java/pkg/sun/tools/jstat/OptionFinder.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package sun.tools.jstat; | |
| 27 | + | |
| 28 | +import java.util.*; | |
| 29 | +import java.net.*; | |
| 30 | +import java.io.*; | |
| 31 | + | |
| 32 | +/** | |
| 33 | + * A class for finding a specific special option in the jstat_options file. | |
| 34 | + * | |
| 35 | + * @author Brian Doherty | |
| 36 | + * @since 1.5 | |
| 37 | + */ | |
| 38 | +public class OptionFinder { | |
| 39 | + | |
| 40 | + private static final boolean debug = false; | |
| 41 | + | |
| 42 | + List<URL> optionsSources; | |
| 43 | + | |
| 44 | + public OptionFinder(List<URL> optionsSources) { | |
| 45 | + this.optionsSources = optionsSources; | |
| 46 | + } | |
| 47 | + | |
| 48 | + public OptionFormat getOptionFormat(String option, boolean useTimestamp) { | |
| 49 | + OptionFormat of = getOptionFormat(option, optionsSources); | |
| 50 | + OptionFormat tof = null; | |
| 51 | + if ((of != null) && (useTimestamp)) { | |
| 52 | + // prepend the timestamp column as first column | |
| 53 | + tof = getOptionFormat("timestamp", optionsSources); | |
| 54 | + if (tof != null) { | |
| 55 | + ColumnFormat cf = (ColumnFormat)tof.getSubFormat(0); | |
| 56 | + of.insertSubFormat(0, cf); | |
| 57 | + } | |
| 58 | + } | |
| 59 | + return of; | |
| 60 | + } | |
| 61 | + | |
| 62 | + protected OptionFormat getOptionFormat(String option, List<URL> sources) { | |
| 63 | + OptionFormat of = null; | |
| 64 | + for (URL u : sources) { | |
| 65 | + try { | |
| 66 | + Reader r = new BufferedReader( | |
| 67 | + new InputStreamReader(u.openStream())); | |
| 68 | + of = new Parser(r).parse(option); | |
| 69 | + if (of != null) | |
| 70 | + break; | |
| 71 | + } catch (IOException e) { | |
| 72 | + if (debug) { | |
| 73 | + System.err.println("Error processing " + u | |
| 74 | + + " : " + e.getMessage()); | |
| 75 | + e.printStackTrace(); | |
| 76 | + } | |
| 77 | + } catch (ParserException e) { | |
| 78 | + // Exception in parsing the options file. | |
| 79 | + System.err.println(u + ": " + e.getMessage()); | |
| 80 | + System.err.println("Parsing of " + u + " aborted"); | |
| 81 | + } | |
| 82 | + } | |
| 83 | + return of; | |
| 84 | + } | |
| 85 | +} | |