/*
* Copyright (C) 2013.
*
* 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.actions;
import java.util.List;
import uk.me.parabola.mkgmap.reader.osm.Element;
import static uk.me.parabola.imgfmt.app.net.AccessTagsAndBits.*;
/**
* Add one value to all mkgmap access tags, optionally changing them if they already exist.
* The value can have replacements from the current tags.
*
* @author WanMil
*/
public class AddAccessAction extends ValueBuildedAction {
private final boolean modify;
// The tags used to build the value.
private Element valueTags;
/**
* Create an action to add the given value to all mkgmap access tags.
* If the modify flag is false, then only those tags are set that do
* not already exist.
*/
public AddAccessAction(String value, boolean modify) {
this.modify = modify;
add(value);
}
public boolean perform(Element el) {
// 1st build the value
Element tags = valueTags!=null? valueTags: el;
String accessValue = null;
for (ValueBuilder value : getValueBuilder()) {
accessValue = value.build(tags, el);
if (accessValue != null) {
break;
}
}
if (accessValue == null) {
return false;
}
for (Short accessTag : ACCESS_TAGS_COMPILED.keySet()) {
setTag(el, accessTag, accessValue);
}
return true;
}
/**
* Set the tag of the given element. In case the modify flag
* is {@code true} the tag is always set. Otherwise the tag
* is set only if it does not already exist.
* @param el OSM element
* @param tagKey the compiled tag key
* @param value the value to be set
*/
private void setTag(Element el, Short tagKey, String value) {
String tv = el.getTag(tagKey);
if (tv != null && !modify)
return;
el.addTag(tagKey, value);
}
public void setValueTags(Element valueTags) {
this.valueTags = valueTags;
}
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(modify ? "setaccess " : "addaccess ");
List<ValueBuilder> values = getValueBuilder();
for (int i = 0; i < values.size(); i++) {
sb.append(values.get(i));
if (i < values.size() - 1)
sb.append(" | ");
}
sb.append(';');
return sb.toString();
}
}