2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with the com.oreilly.servlet library, any library
22 * licensed under the Apache Software License, The Sun (tm) Java Advanced
23 * Imaging library (JAI), The Sun JIMI library (or with modified versions of
24 * the above that use the same license as the above), and distribute linked
25 * combinations including the two. You must obey the GNU General Public
26 * License in all respects for all of the code used other than the above
27 * mentioned libraries. If you modify this file, you may extend this exception
28 * to your version of the file, but you are not obligated to do so. If you do
29 * not wish to do so, delete this exception statement from your version.
32 package mir.producer.reader;
36 import mir.producer.*;
38 public class ScriptedProducerNodeDefinition {
39 private Map parameters; // name -> default value
40 private Set nodeParameters;
41 private ProducerNode body;
44 public static String SCRIPTED_PRODUCERNODE_RUNTIMEDATA_KEY = "$SCRIPTRUNTIMEDATA";
45 public static String SCRIPTED_PRODUCERNODE_RUNTIMESTACK_KEY = "stack";
47 public ScriptedProducerNodeDefinition(String aName) {
49 parameters = new HashMap();
50 nodeParameters = new HashSet();
51 body = new CompositeProducerNode();
54 public void addParameter(String aName, String aDefaultValue) {
55 parameters.put(aName, aDefaultValue);
58 public void addNodeParameter(String aName) {
59 nodeParameters.add(aName);
62 public void setBody(ProducerNode aBody) {
66 protected Map getParameters() {
70 protected Set getNodeParameters() {
71 return nodeParameters;
74 protected ProducerNode getBody() {
78 public String getName() {
82 public Set getRequiredAttributes() {
83 return getAttributesSelection(true);
86 public Set getOptionalAttributes() {
87 return getAttributesSelection(false);
90 public Set getAttributesSelection(boolean aRequired) {
91 Set result = new HashSet();
92 Iterator i = parameters.entrySet().iterator();
95 Map.Entry entry = (Map.Entry) i.next();
97 if ((entry.getValue() == null) == aRequired ) {
98 result.add(entry.getKey());
106 protected static class NodeParameterProducerNode implements ProducerNode {
107 private String parameterName;
108 private String definitionName;
110 public NodeParameterProducerNode(String aDefinitionName, String aParameterName) {
111 definitionName = aDefinitionName;
112 parameterName = aParameterName;
115 public void produce(Map aValues, String aVerb, PrintWriter aLogger) throws ProducerExc, ProducerFailure {
116 ProducerNode producerNode;
118 Map runTimeData = (Map) ((Map) aValues.get(SCRIPTED_PRODUCERNODE_RUNTIMEDATA_KEY)).get(definitionName);
119 Map parameters = (Map) ((Stack) runTimeData.get( SCRIPTED_PRODUCERNODE_RUNTIMESTACK_KEY )).peek();
121 producerNode = (ProducerNode) parameters.get(parameterName);
123 if (producerNode != null)
124 producerNode.produce(aValues, aVerb, aLogger);
127 public Set buildVerbSet() {
128 return new HashSet();