001/* 002 * (C) Copyright 2006-2008 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * bstefanescu 018 * 019 * $Id$ 020 */ 021 022package org.nuxeo.ecm.webengine.rendering; 023 024import java.util.HashMap; 025import java.util.List; 026import java.util.Map; 027 028import org.nuxeo.ecm.core.api.NuxeoException; 029import org.nuxeo.ecm.webengine.WebEngine; 030import org.nuxeo.ecm.webengine.model.WebContext; 031 032import freemarker.template.AdapterTemplateModel; 033import freemarker.template.SimpleScalar; 034import freemarker.template.TemplateCollectionModel; 035import freemarker.template.TemplateHashModelEx; 036import freemarker.template.TemplateMethodModelEx; 037import freemarker.template.TemplateModel; 038import freemarker.template.TemplateModelException; 039import freemarker.template.TemplateModelIterator; 040 041/** 042 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> 043 */ 044public class ScriptMethod implements TemplateMethodModelEx { 045 046 @Override 047 public Object exec(@SuppressWarnings("rawtypes") List arguments) throws TemplateModelException { 048 int size = arguments.size(); 049 if (size < 1) { 050 throw new TemplateModelException("Invalid number of arguments for script(...) method"); 051 } 052 053 SimpleScalar val = (SimpleScalar) arguments.get(0); 054 if (val == null) { 055 throw new TemplateModelException("src attribute is required"); 056 } 057 String src = val.getAsString(); 058 059 Map<String, Object> args = new HashMap<>(); 060 if (arguments.size() > 1) { 061 Object o = arguments.get(1); 062 if (o instanceof SimpleScalar) { 063 String arg = ((SimpleScalar) o).getAsString(); 064 args.put("_args", new String[] { arg }); 065 } else if (!(o instanceof TemplateHashModelEx)) { 066 throw new TemplateModelException("second argument should be a map"); 067 } else { 068 TemplateHashModelEx t = (TemplateHashModelEx) o; 069 TemplateCollectionModel keys = t.keys(); 070 TemplateModelIterator it = keys.iterator(); 071 072 while (it.hasNext()) { 073 TemplateModel k = it.next(); 074 String kk = k.toString(); 075 TemplateModel v = t.get(kk); 076 Object vv = null; 077 if (v instanceof AdapterTemplateModel) { 078 vv = ((AdapterTemplateModel) v).getAdaptedObject(null); 079 } else { 080 vv = v.toString(); 081 } 082 args.put(kk, vv); 083 } 084 } 085 } 086 087 WebContext ctx = WebEngine.getActiveContext(); 088 if (ctx != null) { 089 try { 090 return ctx.runScript(src, args); 091 } catch (NuxeoException e) { 092 throw new TemplateModelException("Failed to run script: " + src, e); 093 } 094 } else { 095 throw new IllegalStateException("Not In a Web Context"); 096 } 097 } 098 099}