ohrstrom@1504: /*
ohrstrom@1504:  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
ohrstrom@1504:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ohrstrom@1504:  *
ohrstrom@1504:  * This code is free software; you can redistribute it and/or modify it
ohrstrom@1504:  * under the terms of the GNU General Public License version 2 only, as
ohrstrom@1504:  * published by the Free Software Foundation.  Oracle designates this
ohrstrom@1504:  * particular file as subject to the "Classpath" exception as provided
ohrstrom@1504:  * by Oracle in the LICENSE file that accompanied this code.
ohrstrom@1504:  *
ohrstrom@1504:  * This code is distributed in the hope that it will be useful, but WITHOUT
ohrstrom@1504:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ohrstrom@1504:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
ohrstrom@1504:  * version 2 for more details (a copy is included in the LICENSE file that
ohrstrom@1504:  * accompanied this code).
ohrstrom@1504:  *
ohrstrom@1504:  * You should have received a copy of the GNU General Public License version
ohrstrom@1504:  * 2 along with this work; if not, write to the Free Software Foundation,
ohrstrom@1504:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ohrstrom@1504:  *
ohrstrom@1504:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohrstrom@1504:  * or visit www.oracle.com if you need additional information or have any
ohrstrom@1504:  * questions.
ohrstrom@1504:  */
ohrstrom@1504: 
ohrstrom@1504: package com.sun.tools.sjavac;
ohrstrom@1504: 
ohrstrom@1504: import java.io.File;
ohrstrom@1504: import java.util.Arrays;
ohrstrom@1504: import java.util.HashSet;
ohrstrom@1504: import java.util.Set;
ohrstrom@1504: import java.util.StringTokenizer;
ohrstrom@1504: 
ohrstrom@1504: /**
ohrstrom@1504:  * Utilities.
ohrstrom@1504:  *
ohrstrom@1504:  * <p><b>This is NOT part of any supported API.
ohrstrom@1504:  * If you write code that depends on this, you do so at your own
ohrstrom@1504:  * risk.  This code and its internal interfaces are subject to change
ohrstrom@1504:  * or deletion without notice.</b></p>
ohrstrom@1504:  */
ohrstrom@1504: public class Util {
ohrstrom@1504: 
ohrstrom@1504:     public static String toFileSystemPath(String pkgId) {
ohrstrom@1504:         if (pkgId == null || pkgId.length()==0) return null;
ohrstrom@1504:         String pn;
ohrstrom@1504:         if (pkgId.charAt(0) == ':') {
ohrstrom@1504:             // When the module is the default empty module.
ohrstrom@1504:             // Do not prepend the module directory, because there is none.
ohrstrom@1504:             // Thus :java.foo.bar translates to java/foo/bar (or \)
ohrstrom@1504:             pn = pkgId.substring(1).replace('.',File.separatorChar);
ohrstrom@1504:         } else {
ohrstrom@1504:             // There is a module. Thus jdk.base:java.foo.bar translates
ohrstrom@1504:             // into jdk.base/java/foo/bar
ohrstrom@1504:             int cp = pkgId.indexOf(':');
ohrstrom@1504:             String mn = pkgId.substring(0,cp);
ohrstrom@1504:             pn = mn+File.separatorChar+pkgId.substring(cp+1).replace('.',File.separatorChar);
ohrstrom@1504:         }
ohrstrom@1504:         return pn;
ohrstrom@1504:     }
ohrstrom@1504: 
ohrstrom@1504:     public static String justPackageName(String pkgName) {
ohrstrom@1504:         int c = pkgName.indexOf(":");
ohrstrom@1504:         assert(c != -1);
ohrstrom@1504:         return pkgName.substring(c+1);
ohrstrom@1504:     }
ohrstrom@1504: 
ohrstrom@1504:     public static String extractStringOption(String opName, String s) {
ohrstrom@1504:         int p = s.indexOf(opName+"=");
ohrstrom@1504:         if (p == -1) return null;
ohrstrom@1504:         p+=opName.length()+1;
ohrstrom@1504:         int pe = s.indexOf(',', p);
ohrstrom@1504:         if (pe == -1) pe = s.length();
ohrstrom@1504:         return s.substring(p, pe);
ohrstrom@1504:     }
ohrstrom@1504: 
ohrstrom@1504:     public static int extractIntOption(String opName, String s) {
ohrstrom@1504:         int p = s.indexOf(opName+"=");
ohrstrom@1504:         if (p == -1) return 0;
ohrstrom@1504:         p+=opName.length()+1;
ohrstrom@1504:         int pe = s.indexOf(',', p);
ohrstrom@1504:         if (pe == -1) pe = s.length();
ohrstrom@1504:         int v = 0;
ohrstrom@1504:         try {
ohrstrom@1504:             v = Integer.parseInt(s.substring(p, pe));
ohrstrom@1504:         } catch (Exception e) {}
ohrstrom@1504:         return v;
ohrstrom@1504:     }
ohrstrom@1504: 
ohrstrom@1504:     /**
ohrstrom@1504:      * Clean out unwanted sub options supplied inside a primary option.
ohrstrom@1504:      * For example to only had portfile remaining from:
ohrstrom@1504:      *    settings="--server:id=foo,portfile=bar"
ohrstrom@1504:      * do settings = cleanOptions("--server:",Util.set("-portfile"),settings);
ohrstrom@1504:      *    now settings equals "--server:portfile=bar"
ohrstrom@1504:      *
ohrstrom@1504:      * @param optionPrefix The option name, including colon, eg --server:
ohrstrom@1504:      * @param allowsSubOptions A set of the allowed sub options, id portfile etc.
ohrstrom@1504:      * @param s The option settings string.
ohrstrom@1504:      */
ohrstrom@1504:     public static String cleanSubOptions(String optionPrefix, Set<String> allowedSubOptions, String s) {
ohrstrom@1504:         StringBuilder sb = new StringBuilder();
ohrstrom@1504:         if (!s.startsWith(optionPrefix)) return "";
ohrstrom@1504:         StringTokenizer st = new StringTokenizer(s.substring(optionPrefix.length()), ",");
ohrstrom@1504:         while (st.hasMoreTokens()) {
ohrstrom@1504:             String o = st.nextToken();
ohrstrom@1504:             int p = o.indexOf('=');
ohrstrom@1504:             if (p>0) {
ohrstrom@1504:                 String key = o.substring(0,p);
ohrstrom@1504:                 String val = o.substring(p+1);
ohrstrom@1504:                 if (allowedSubOptions.contains(key)) {
ohrstrom@1504:                     if (sb.length() > 0) sb.append(',');
ohrstrom@1504:                     sb.append(key+"="+val);
ohrstrom@1504:                 }
ohrstrom@1504:             }
ohrstrom@1504:         }
ohrstrom@1504:         return sb.toString();
ohrstrom@1504:     }
ohrstrom@1504: 
ohrstrom@1504:     /**
ohrstrom@1504:      * Convenience method to create a set with strings.
ohrstrom@1504:      */
ohrstrom@1504:     public static Set<String> set(String... ss) {
ohrstrom@1504:         Set<String> set = new HashSet<String>();
ohrstrom@1504:         set.addAll(Arrays.asList(ss));
ohrstrom@1504:         return set;
ohrstrom@1504:     }
ohrstrom@1504: 
ohrstrom@1504:     /**
ohrstrom@1504:      * Normalize windows drive letter paths to upper case to enable string
ohrstrom@1504:      * comparison.
ohrstrom@1504:      *
ohrstrom@1504:      * @param file File name to normalize
ohrstrom@1504:      * @return The normalized string if file has a drive letter at the beginning,
ohrstrom@1504:      *         otherwise the original string.
ohrstrom@1504:      */
ohrstrom@1504:     public static String normalizeDriveLetter(String file) {
ohrstrom@1504:         if (file.length() > 2 && file.charAt(1) == ':') {
ohrstrom@1504:             return Character.toUpperCase(file.charAt(0)) + file.substring(1);
ohrstrom@1504:         } else if (file.length() > 3 && file.charAt(0) == '*'
ohrstrom@1504:                    && file.charAt(2) == ':') {
ohrstrom@1504:             // Handle a wildcard * at the beginning of the string.
ohrstrom@1504:             return file.substring(0, 1) + Character.toUpperCase(file.charAt(1))
ohrstrom@1504:                    + file.substring(2);
ohrstrom@1504:         }
ohrstrom@1504:         return file;
ohrstrom@1504:     }
ohrstrom@1504: 
ohrstrom@1504:     /**
ohrstrom@1504:      * Locate the setting for the server properties.
ohrstrom@1504:      */
ohrstrom@1504:     public static String findServerSettings(String[] args) {
ohrstrom@1504:         for (String s : args) {
ohrstrom@1504:             if (s.startsWith("--server:")) {
ohrstrom@1504:                 return s;
ohrstrom@1504:             }
ohrstrom@1504:         }
ohrstrom@1504:         return null;
ohrstrom@1504:     }
ohrstrom@1504: }