From a509f5735c14aff81f9ec2434932e99b45ac4b48 Mon Sep 17 00:00:00 2001
From: hns <hannesw@gmail.com>
Date: Tue, 11 Sep 2001 19:14:02 +0000
Subject: [PATCH] Formerly known as ESRequestData. It is now possible to update
 this object, while ESRequestData was read-only.

---
 src/helma/scripting/fesi/ESMapWrapper.java | 155 +++++++++++++++++++++
 1 file changed, 155 insertions(+)
 create mode 100644 src/helma/scripting/fesi/ESMapWrapper.java

diff --git a/src/helma/scripting/fesi/ESMapWrapper.java b/src/helma/scripting/fesi/ESMapWrapper.java
new file mode 100644
index 00000000..8ca6b44f
--- /dev/null
+++ b/src/helma/scripting/fesi/ESMapWrapper.java
@@ -0,0 +1,155 @@
+// ESMapWrapper.java
+// Copyright (c) Hannes Wallnöfer 1998-2000
+
+
+package helma.scripting.fesi;
+
+import helma.framework.core.*;
+import helma.objectmodel.INode;
+import FESI.Data.*;
+import FESI.Exceptions.*;
+import FESI.Interpreter.Evaluator;
+import java.util.*;
+
+
+
+/**
+  * An EcmaScript object that makes stuff in a hashtable accessible as its properties
+  */
+
+public class ESMapWrapper extends ESWrapper {
+
+    private Map data;
+    private RequestEvaluator reval;
+
+    public ESMapWrapper (RequestEvaluator reval) {
+	super (new Object(), reval.evaluator);
+	this.reval = reval;
+    }
+
+    public ESMapWrapper (RequestEvaluator reval, Map data) {
+	super (new Object(), reval.evaluator);
+	this.reval = reval;
+	this.data = data;
+    }
+
+    public void setData (Map data) {
+	this.data = data;
+    }
+
+    /**
+     * Overridden to make the object read-only
+     */
+    public void putProperty(String propertyName, ESValue propertyValue, int hash) throws EcmaScriptException {
+	if (data == null)
+	    data = new HashMap ();
+	data.put (propertyName, propertyValue);
+    }
+    
+    public boolean deleteProperty(String propertyName, int hash) throws EcmaScriptException {
+	data.remove (propertyName);
+	return true;
+    }
+ 
+     public ESValue getProperty(String propertyName, int hash) throws EcmaScriptException {
+	if (data == null)
+	    return ESNull.theNull;
+
+	Object val = data.get (propertyName);
+
+	if (val == null)
+	    return ESNull.theNull;
+
+	if (val instanceof  String)
+	    return new ESString ((String) val);
+	else if (val instanceof INode)
+	    return reval.getNodeWrapper ((INode) val);
+
+	return ESLoader.normalizeValue(val, evaluator);
+    }
+
+
+    public Enumeration getAllProperties () {
+	return getProperties ();
+    }
+
+    public Enumeration getProperties () {
+	Object[] keys = data == null ? null : data.keySet().toArray ();
+	return new Enum (keys);
+    }
+
+
+    class Enum implements Enumeration {
+	
+	Object[] elements;
+	int pos;
+	
+	Enum (Object[] elements) {
+	    this.elements = elements;
+	    pos = 0;
+	}
+	
+	public boolean hasMoreElements () {
+	    return elements != null && pos < elements.length;
+	}
+	
+	public Object nextElement () {
+	    if (elements == null || pos >= elements.length)
+	        throw new NoSuchElementException ();
+	    return elements[pos++];
+	}
+    }
+}
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