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 | } | ||