Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/datacage/templating/StackFrames.java @ 4255:670e98f5a441
Fixed leak while merging facets.
The ThemeList that is used by OutputHelper to sort the
Facets for an Output now uses a list to store the ManagedFacets.
The correct order is made up by sorting the List using
Collections.sort() function of the Java JDK. Therfore, the
ManagedFacet class implements the Comparable interface. The
return value of its compareTo(other) method depends on the
value of the 'position' field.
author | Ingo Weinzierl <weinzierl.ingo@googlemail.com> |
---|---|
date | Thu, 25 Oct 2012 14:01:46 +0200 |
parents | de0c2bbb27f9 |
children | 2970046fcdca |
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package de.intevation.flys.artifacts.datacage.templating; import java.util.ArrayList; import java.util.Map; import java.util.List; import java.util.HashMap; import java.util.HashSet; import java.util.Set; import javax.xml.xpath.XPathVariableResolver; import javax.xml.namespace.QName; import org.apache.log4j.Logger; public class StackFrames implements XPathVariableResolver { private static Logger log = Logger.getLogger(StackFrames.class); 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) { key = key.toUpperCase(); for (int i = frames.size()-1; i >= 0; --i) { if (frames.get(i).containsKey(key)) { return true; } } return false; } /** * Get element (variable) key. * Returns null if not found. * @param key name to resolve * @return resolution, null if not found. */ public Object get(String key) { return get(key, null); } public boolean getStore(String key, Object [] result) { key = key.toUpperCase(); for (int i = frames.size()-1; i >= 0; --i) { Map<String, Object> frame = frames.get(i); if (frame.containsKey(key)) { result[0] = frame.get(key); return true; } } return false; } public Object get(String key, Object def) { key = key.toUpperCase(); 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; } @Override public Object resolveVariable(QName variableName) { if (log.isDebugEnabled()) { log.debug("resolve var: " + variableName); } return get(variableName.getLocalPart()); } public String dump() { StringBuilder sb = new StringBuilder("["); Set<String> already = new HashSet<String>(); boolean first = true; for (int i = frames.size()-1; i >= 0; --i) { Map<String, Object> frame = frames.get(i); for (Map.Entry<String, Object> entry: frame.entrySet()) { if (already.add(entry.getKey())) { if (first) { first = false; } else { sb.append(", "); } sb.append('\'').append(entry.getKey()) .append("'='").append(entry.getValue()).append('\''); } } } return sb.append(']').toString(); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :