3 * Jalview - A Sequence Alignment Editor and Viewer (Version 2.6)
4 * Copyright (C) 2010 J Procter, AM Waterhouse, G Barton, M Clamp, S Searle
6 * This file is part of Jalview.
8 * Jalview is free software: you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19 <title>Adding Groovy Support to Jalview
23 Adding Groovy Support to Jalview
26 There is currently no scripting language
27 extension within Jalview, in part because a
28 scripting API has not yet been developed.
30 <p>It is, however, really easy to embed scripting
31 engines like groovy. If groovy is detected on the
32 classpath, a new menu entry on the Desktop's Tools
33 menu will open the GroovyShell.
35 <p>Here are some scripts to get you started:</p>
36 <ul><li>Getting the title, alignment and first sequence from the current alignFrame<br>
38 def alf = Jalview.getAlignframes();
39 print alf[0].getTitle();
40 def alignment = alf[0].viewport.alignment;
41 def seq = alignment.getSequenceAt(0);
45 <h1>Getting Groovy...</h1>
47 You need the core groovy jars which include the GroovyShell. The easiest way of doing
48 this is to add the groovy-all-*.jar to the lib directory whose path is given in the java.ext.dirs property.</p>
49 <p>The is obtained from the <em>embedded</em> directory within the <a
50 href="http://dist.codehaus.org/groovy/distributions"/>groovy distribution</a>).
54 Using Java class methods from Groovy is straightforward, but currently, there isn't a set of easy to use methods for the jalview objects. A Jalview Scripting API needs to be developed to make this easier.</p>
55 <h3>Making it easier</h3>
56 <p>jalview.bin.JalviewScript could be a top level jalview instance of a script execution thread, creating and maintaining the context for scripts operating on the jalview datamodel and interfacing with the Jalview GUI.