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/*
* Copyright (C) 2017.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 or
* version 2 as published by the Free Software Foundation.
*
* This program 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.
*/
package uk.me.parabola.mkgmap.osmstyle;
import java.util.List;
import java.util.Properties;
import it.unimi.dsi.fastutil.shorts.ShortArrayList;
import uk.me.parabola.mkgmap.CommandArgs;
import uk.me.parabola.mkgmap.reader.osm.Element;
import uk.me.parabola.mkgmap.reader.osm.TagDict;
import uk.me.parabola.mkgmap.reader.osm.Tags;
/**
* Class to handle the option name-tag-list
* @author Gerd Petermann
*
*/
public class NameFinder
{
private final ShortArrayList compiledNameTagList
;
private static final short TK_NAME = TagDict.
getInstance().
xlate("name");
public NameFinder
(Properties props
) {
this.
compiledNameTagList = computeCompiledNameTags
(props
);
}
/**
* Analyse name-tag-list option.
* @param props program properties
* @return list of compiled tag keys or null if only name should be used.
*/
private static ShortArrayList computeCompiledNameTags
(Properties props
) {
if (props ==
null)
return null;
List<String> nametags = CommandArgs.
getNameTags(props
);
if (nametags.
size() ==
1 && "name".
equals(nametags.
get(0)))
return null;
return TagDict.
compileTags(nametags.
toArray(new String[0]));
}
/**
* Get name tag value according to name-tag-list.
* @param el
* @return the tag value or null if none of the name tags is set.
*/
public String getName
(Element el
) {
if (compiledNameTagList ==
null)
return el.
getTag(TK_NAME
);
for (short tagKey : compiledNameTagList
) {
String val = el.
getTag(tagKey
);
if (val
!=
null) {
return val
;
}
}
return null;
}
/**
* Get name tag value according to name-tag-list.
* @param tags the tags to check
* @return the tag value or null if none of the name tags is set.
*/
public String getName
(Tags tags
) {
if (compiledNameTagList ==
null)
return tags.
get(TK_NAME
);
for (short tagKey : compiledNameTagList
) {
String val = tags.
get(tagKey
);
if (val
!=
null) {
return val
;
}
}
return null;
}
/**
* Use name-tag-list to set the name tag for the element.
* @param el the element
*/
public void setNameWithNameTagList
(Element el
) {
if (compiledNameTagList ==
null)
return;
for (short tagKey : compiledNameTagList
) {
String val = el.
getTag(tagKey
);
if (val
!=
null) {
if (tagKey
!= TK_NAME
) {
// add or replace name
el.
addTag(TK_NAME, val
);
}
break;
}
}
}
}