settransparency.java_

联合国农粮署牵头开发的geonetwork源代码最新版

package org.wfp.vam.intermap.services.map;

import java.util.*;

import org.jdom.*;

import jeeves.interfaces.*;
import jeeves.server.*;
import jeeves.server.context.*;

import org.wfp.vam.intermap.kernel.map.*;

//=============================================================================

/** main.result service. shows search results
  */

public class SetTransparency implements Service
{
	public void init(String appPath, ServiceConfig config) throws Exception {}

	//--------------------------------------------------------------------------
	//---
	//--- Service
	//---
	//--------------------------------------------------------------------------

	public Element exec(Element params, ServiceContext context) throws Exception
	{
		List layers = params.getChildren(); // get all children (all layers)

		// Get the MapMerger object from the user session
		MapMerger mm = MapUtil.getMapMerger(context);

		for (Iterator i = layers.iterator(); i.hasNext(); ) {
			Element layer = (Element)i.next();
		
			int id = Integer.parseInt(layer.getName().substring(1));
			float transparency;
			try {
				transparency = Float.parseFloat(layer.getText());
				mm.setTransparency(id, transparency);
			}
			catch (NumberFormatException e) {
				// do nothing
			}
		}

		return new Element("response").addContent(mm.getTransparency());
	}
	
}

//=============================================================================