/* (c) 2014 Open Source Geospatial Foundation - all rights reserved
* (c) 2001 - 2013 OpenPlans
* This code is licensed under the GPL 2.0 license, available at the root
* application directory.
*/
package org.geoserver.ows.kvp;
import java.util.ArrayList;
import java.util.List;
import org.geoserver.ows.KvpParser;
import org.geoserver.ows.util.KvpUtils;
import org.geoserver.platform.GeoServerExtensions;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
/**
* Parses view parameters which are of the form:
*
* <pre>VIEWPARAMS=opt1:val1,val2;opt2:val1;opt3:...[,opt1:val1,val2;opt2:val1;opt3:...]</pre>
*
* @see FormatOptionsKvpParser
*/
public class ViewParamsKvpParser extends KvpParser implements ApplicationContextAware {
/**
* application context used to lookup KvpParsers
*/
ApplicationContext applicationContext;
public ViewParamsKvpParser() {
super("viewparams", List.class);
}
public void setApplicationContext(ApplicationContext applicationContext)
throws BeansException {
this.applicationContext = applicationContext;
}
public Object parse(String value) throws Exception {
List ret = new ArrayList();
List parsers = GeoServerExtensions.extensions(KvpParser.class, applicationContext);
KvpParser formatOptionsParser = null;
for (Object o : parsers) {
KvpParser parser = (KvpParser) o;
if ( parser.getKey().equalsIgnoreCase("format_options") ) {
formatOptionsParser = parser;
break;
}
}
if (formatOptionsParser == null) {
throw new IllegalStateException("Missing format options parser.");
}
for (String kvp : KvpUtils.escapedTokens(value, ',')) {
ret.add(formatOptionsParser.parse(kvp));
}
return ret;
}
}