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---
layout: default
class: Workspace
title: gestalt ';' NAME ( ';' NAME (';' ANY )? )?
summary: provides access to the gestalt properties that describe the environment.
---
/**
* Add a gestalt to all workspaces. The gestalt is a set of parts describing
* the environment. Each part has a name and optionally attributes. This
* method adds a gestalt to the VM. Per workspace it is possible to augment
* this.
*/
public static void addGestalt(String part, Attrs attrs) {
Attrs already = overallGestalt.get(part);
if (attrs == null)
attrs = new Attrs();
if (already != null) {
already.putAll(attrs);
} else
already = attrs;
overallGestalt.put(part, already);
}
/**
* Get the attrs for a gestalt part
*/
public Attrs getGestalt(String part) {
if (gestalt == null) {
gestalt = new Parameters(getProperty(Constants.GESTALT));
gestalt.mergeWith(overallGestalt, false);
}
return gestalt.get(part);
}
/**
* The macro to access the gestalt
* <p>
* {@code $ gestalt;part[;key[;value]]}}
*/
public String _gestalt(String args[]) {
if (args.length >= 2) {
Attrs attrs = getGestalt(args[1]);
if (attrs == null)
return "";
if (args.length == 2)
return args[1];
String s = attrs.get(args[2]);
if (args.length == 3) {
if (s == null)
s = "";
return s;
}
if (args.length == 4) {
if (args[3].equals(s))
return s;
else
return "";
}
}
throw new IllegalArgumentException("${gestalt;<part>[;key[;<value>]]} has too many arguments");
}
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