jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/tools/internal/xjc/util/Util.java@9c07ef4934dd

     1 /*

     2  * Copyright (c) 1997, 2012, 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  */

    26 package com.sun.tools.internal.xjc.util;

    28 import org.xml.sax.Locator;

    31 /**

    32  * Other miscellaneous utility methods.

    33  *

    34  * @author

    35  *     Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)

    36  */

    37 public final class Util {

    38     private Util() {}   // no instanciation please

    40     /**

    41      * An easier-to-use version of the System.getProperty method

    42      * that doesn't throw an exception even if a property cannot be

    43      * read.

    44      */

    45     public static String getSystemProperty( String name ) {

    46         try {

    47             return System.getProperty(name);

    48         } catch( SecurityException e ) {

    49             return null;

    50         }

    51     }

    53     /**

    54      * Compares if two {@link Locator}s point to the exact same position.

    55      */

    56     public static boolean equals(Locator lhs, Locator rhs) {

    57         return lhs.getLineNumber()==rhs.getLineNumber()

    58         && lhs.getColumnNumber()==rhs.getColumnNumber()

    59         && equals(lhs.getSystemId(),rhs.getSystemId())

    60         && equals(lhs.getPublicId(),rhs.getPublicId());

    61     }

    63     private static boolean equals(String lhs, String rhs) {

    64         if(lhs==null && rhs==null)  return true;

    65         if(lhs==null || rhs==null)  return false;

    66         return lhs.equals(rhs);

    67     }

    69     /**

    70      * Calls the other getSystemProperty method with

    71      * "[clazz]&#x2E;[name].

    72      */

    73     public static String getSystemProperty( Class clazz, String name ) {

    74         return getSystemProperty( clazz.getName()+'.'+name );

    75     }

    76 }

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