--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/de/mpiwg/indexmeta/web/servlet/methods/AbstractServletMethod.java	Fri Apr 12 17:48:42 2013 +0200
@@ -0,0 +1,111 @@
+package de.mpiwg.indexmeta.web.servlet.methods;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.servlet.http.HttpServletRequest;
+
+import org.apache.commons.lang.StringUtils;
+
+import de.mpiwg.indexmeta.bo.Contextualization;
+
+public abstract class AbstractServletMethod {
+	
+	public static String p_indexMetaId = "indexMetaId";
+	public static String p_type = "type";
+	public static String p_remoteId = "remoteId";
+	public static String p_elementId = "elementId";
+	
+	protected static String RUNTIME = "runtime";
+	
+	public static Long getLong(HttpServletRequest request, String name){
+		Long value = null;
+		try{
+			String s = request.getParameter(name);
+			value = new Long(s);
+		}catch (Exception e) {
+		}
+		return value;
+	}
+	
+	public static String getString(HttpServletRequest request, String name){
+		String value = null;
+		try{
+			value = request.getParameter(name);
+		}catch (Exception e) {
+		}
+		return value;
+	}
+	
+	public static Boolean getBoolean(HttpServletRequest request, String name){
+		Boolean value = null;
+		try{
+			String s = request.getParameter(name);
+			value = new Boolean(s);
+		}catch (Exception e) {
+		}
+		return value;
+	}
+	
+	public static Integer getInteger(HttpServletRequest request, String name){
+		Integer value = null;
+		try{
+			String s = request.getParameter(name);
+			value = new Integer(s);
+		}catch (Exception e) {
+		}
+		return value;
+	}
+	
+	protected static List<Contextualization> filterByType(List<Contextualization> list, String type){
+		if(StringUtils.isEmpty(type)){
+			return list;
+		}
+		List<Contextualization> rs = new ArrayList<Contextualization>();		
+		for(Contextualization ctx : list){
+			if(type.equals(ctx.getType())){
+				rs.add(ctx);
+			}
+		}		
+		return rs;
+	}
+	
+	protected static List<Contextualization> filterByElementId(List<Contextualization> list, String elementId){
+		if(StringUtils.isEmpty(elementId)){
+			return list;
+		}
+		List<Contextualization> rs = new ArrayList<Contextualization>();		
+		for(Contextualization ctx : list){
+			if(elementId.equals(elementId)){
+				rs.add(ctx);
+			}
+		}		
+		return rs;
+	}
+	
+	protected static List<Contextualization> filterByRemoteId(List<Contextualization> list, String remoteId){
+		if(StringUtils.isEmpty(remoteId)){
+			return list;
+		}
+		List<Contextualization> rs = new ArrayList<Contextualization>();		
+		for(Contextualization ctx : list){
+			if(remoteId.equals(ctx.getRemoteId())){
+				rs.add(ctx);
+			}
+		}		
+		return rs;
+	}
+	
+	public static List<Long> getLongList(HttpServletRequest request, String name){
+		List<Long> list = new ArrayList<Long>();
+		String s = request.getParameter(name);
+		String[] array = s.split("[|]");
+		for(String sID : array){
+			try{
+				Long id = new Long(sID);
+				list.add(id);
+			}catch (Exception e) {}
+		}
+		return list;
+	}
+}