Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/meta/StackFrames.java @ 948:0881cd4be773
Improved error handling in loading meta data template.
flys-artifacts/trunk@2364 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
---|---|
date | Tue, 19 Jul 2011 17:01:10 +0000 |
parents | 7c018f466d6d |
children | e91996b46e3c |
line wrap: on
line source
package de.intevation.flys.artifacts.services.meta; import java.util.Map; import java.util.List; import java.util.HashMap; import java.util.ArrayList; public class StackFrames { protected List<Map<String, Object>> frames; public StackFrames() { frames = new ArrayList<Map<String, Object>>(); } public StackFrames(Map<String, Object> initialFrame) { this(); if (initialFrame != null) { frames.add(new HashMap<String, Object>(initialFrame)); } } public void enter() { frames.add(new HashMap<String, Object>()); } public void leave() { frames.remove(frames.size()-1); } public void put(String key, Object value) { int N = frames.size(); if (N > 0) { frames.get(N-1).put(key, value); } } public void put(String [] keys, Object [] values) { Map<String, Object> top = frames.get(frames.size()-1); for (int i = 0; i < keys.length; ++i) { top.put(keys[i], values[i]); } } public boolean containsKey(String key) { for (int i = frames.size()-1; i >= 0; --i) { if (frames.get(i).containsKey(key)) { return true; } } return false; } public Object get(String key) { return get(key, null); } public Object get(String key, Object def) { for (int i = frames.size()-1; i >= 0; --i) { Map<String, Object> frame = frames.get(i); if (frame.containsKey(key)) { return frame.get(key); } } return def; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :