| 1 | /*
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| 2 | * GSPath.java
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| 3 | * Copyright (C) 2002 New Zealand Digital Library, http://www.nzdl.org
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| 4 | *
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| 5 | * This program is free software; you can redistribute it and/or modify
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| 6 | * it under the terms of the GNU General Public License as published by
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| 7 | * the Free Software Foundation; either version 2 of the License, or
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| 8 | * (at your option) any later version.
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| 9 | *
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| 10 | * This program is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program; if not, write to the Free Software
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| 17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 18 | */
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| 19 | package org.greenstone.gsdl3.util;
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| 20 |
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| 21 | /**
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| 22 | * GSPath - utility class for greenstone
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| 23 | *
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| 24 | * modifies and examines message address paths and names
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| 25 | *
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| 26 | * @author <a href="mailto:[email protected]">Katherine Don</a>
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| 27 | * @version $Revision: 3235 $
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| 28 | *
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| 29 | */
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| 30 |
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| 31 | public class GSPath {
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| 32 |
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| 33 | /** adds new_link to the end of path
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| 34 | *
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| 35 | * @return the new path
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| 36 | */
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| 37 | static public String appendLink(String path, String new_link) {
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| 38 | if (path.equals("")) {
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| 39 | return new_link;
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| 40 | }
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| 41 | return path +"/"+new_link;
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| 42 | }
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| 43 |
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| 44 | /** adds new_link to the front of path
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| 45 | *
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| 46 | * @return the new path
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| 47 | */
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| 48 | static public String prependLink(String path, String new_link) {
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| 49 | if (path.equals("")) {
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| 50 | return new_link;
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| 51 | }
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| 52 | return new_link+"/"+path;
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| 53 | }
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| 54 |
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| 55 | /** returns the first name in the path
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| 56 | *
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| 57 | */
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| 58 | static public String getFirstLink(String path) {
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| 59 |
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| 60 | int i = path.indexOf("/");
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| 61 | if (i==0) { // have a '/' on the front
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| 62 | path = path.substring(1);
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| 63 | i= path.indexOf("/");
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| 64 | }
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| 65 | if (i==-1) { // '/' not found
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| 66 | return path;
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| 67 | }
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| 68 |
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| 69 | return path.substring(0,i);
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| 70 | }
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| 71 |
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| 72 | /** removes the first name in the path
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| 73 | *
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| 74 | * @return the modified path
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| 75 | */
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| 76 | static public String removeFirstLink(String path) {
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| 77 | int i = path.indexOf("/");
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| 78 | if (i==0) { // have a '/' on the front
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| 79 | path = path.substring(1);
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| 80 | i= path.indexOf("/");
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| 81 | }
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| 82 | if (i==-1) { // '/' not found - remove the whole path
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| 83 | return "";
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| 84 | }
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| 85 | return path.substring(i+1); // remove the '/' char
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| 86 | }
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| 87 |
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| 88 | }
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| 89 |
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| 90 |
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