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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/javax/swing/text/html/parser/support/gnuStringIntMapper.java | |
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Diffstat (limited to 'libjava/classpath/gnu/javax/swing/text/html/parser/support/gnuStringIntMapper.java')
-rw-r--r-- | libjava/classpath/gnu/javax/swing/text/html/parser/support/gnuStringIntMapper.java | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/swing/text/html/parser/support/gnuStringIntMapper.java b/libjava/classpath/gnu/javax/swing/text/html/parser/support/gnuStringIntMapper.java new file mode 100644 index 000000000..9cdf810dd --- /dev/null +++ b/libjava/classpath/gnu/javax/swing/text/html/parser/support/gnuStringIntMapper.java @@ -0,0 +1,112 @@ +/* gnuStringIntMapper.java -- + Copyright (C) 2005 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.javax.swing.text.html.parser.support; + +import java.util.HashMap; +import java.util.Map; +import java.util.TreeMap; + +/** + * A helper class, mapping between the strings and they unique integer + * identifiers. + * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) + */ +public abstract class gnuStringIntMapper +{ + /** + * Maps argument integer values from DTDConstants into they string + * names. Initialized on demand. + */ + private Map is_Map; + + /** + * Maps argument string names into they integer values from DTDConstants. + * Initialized on demand. + */ + private Map si_Map; + + /** + * Get string from id or null if no such id is present in the mapper. + */ + public final String get(int id) + { + if (is_Map == null) + createTheMap(); + + return (String) is_Map.get(new Integer(id)); + } + + /** Get id from string or 0 if no such string is present in the mapper. */ + public final int get(String id) + { + if (si_Map == null) + createTheMap(); + + Integer i = (Integer) si_Map.get(id); + + return i != null ? i.intValue() : 0; + } + + /** + * Create the mapping table for this mapper by adding the required + * String/int pairs. The method is invoked + * only once for each instance, after the first invocation of the any + * form of the <code>get</code> method. Use <code>add</code> to + * create a map for a concrete instance. + */ + protected abstract void create(); + + /** + * Add an id/string pair to this mapper. This is called from + * the method <code>create</code> only. + */ + protected void add(String name, int id) + { + Integer i = new Integer(id); + si_Map.put(name, i); + is_Map.put(i, name); + } + + private void createTheMap() + { + is_Map = new HashMap(); + si_Map = new TreeMap(); + create(); + } +} |