001: /*
002: The contents of this file are subject to the Common Public Attribution License
003: Version 1.0 (the "License"); you may not use this file except in compliance with
004: the License. You may obtain a copy of the License at
005: http://www.projity.com/license . The License is based on the Mozilla Public
006: License Version 1.1 but Sections 14 and 15 have been added to cover use of
007: software over a computer network and provide for limited attribution for the
008: Original Developer. In addition, Exhibit A has been modified to be consistent
009: with Exhibit B.
010:
011: Software distributed under the License is distributed on an "AS IS" basis,
012: WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the
013: specific language governing rights and limitations under the License. The
014: Original Code is OpenProj. The Original Developer is the Initial Developer and
015: is Projity, Inc. All portions of the code written by Projity are Copyright (c)
016: 2006, 2007. All Rights Reserved. Contributors Projity, Inc.
017:
018: Alternatively, the contents of this file may be used under the terms of the
019: Projity End-User License Agreeement (the Projity License), in which case the
020: provisions of the Projity License are applicable instead of those above. If you
021: wish to allow use of your version of this file only under the terms of the
022: Projity License and not to allow others to use your version of this file under
023: the CPAL, indicate your decision by deleting the provisions above and replace
024: them with the notice and other provisions required by the Projity License. If
025: you do not delete the provisions above, a recipient may use your version of this
026: file under either the CPAL or the Projity License.
027:
028: [NOTE: The text of this license may differ slightly from the text of the notices
029: in Exhibits A and B of the license at http://www.projity.com/license. You should
030: use the latest text at http://www.projity.com/license for your modifications.
031: You may not remove this license text from the source files.]
032:
033: Attribution Information: Attribution Copyright Notice: Copyright © 2006, 2007
034: Projity, Inc. Attribution Phrase (not exceeding 10 words): Powered by OpenProj,
035: an open source solution from Projity. Attribution URL: http://www.projity.com
036: Graphic Image as provided in the Covered Code as file: openproj_logo.png with
037: alternatives listed on http://www.projity.com/logo
038:
039: Display of Attribution Information is required in Larger Works which are defined
040: in the CPAL as a work which combines Covered Code or portions thereof with code
041: not governed by the terms of the CPAL. However, in addition to the other notice
042: obligations, all copies of the Covered Code in Executable and Source Code form
043: distributed must, as a form of attribution of the original author, include on
044: each user interface screen the "OpenProj" logo visible to all users. The
045: OpenProj logo should be located horizontally aligned with the menu bar and left
046: justified on the top left of the screen adjacent to the File menu. The logo
047: must be at least 100 x 25 pixels. When users click on the "OpenProj" logo it
048: must direct them back to http://www.projity.com.
049: */
050: package com.projity.grouping.core.transform.filtering;
051:
052: import groovy.lang.GroovyClassLoader;
053:
054: import com.projity.field.InvalidFormulaException;
055: import com.projity.grouping.core.transform.CommonTransform;
056: import com.projity.grouping.core.transform.CommonTransformFactory;
057:
058: /**
059: *
060: */
061: public class NodeFilterFactory extends CommonTransformFactory {
062: // static Log log = LogFactory.getLog(NodeFilterFactory.class);
063: protected String type = null;
064:
065: private static int count = 0;
066:
067: public CommonTransform getTransform()
068: throws InvalidFormulaException {
069: CommonTransform t = getTransformFromDefinition();
070: if (t != null) {
071: setProperties(t);
072: return t;
073: }
074: if (formulaText == null)
075: return null;
076: StringBuffer classText = new StringBuffer();
077: classText
078: .append("package com.projity.grouping.core.transform.filtering;\n");
079: classText.append("import com.projity.grouping.core.Node;\n");
080: classText.append("import com.projity.datatype.*;\n");
081: classText.append("public class FilterFormula").append(count++)
082: .append(" extends NodeFilter{\n");
083: classText
084: .append(
085: "\tpublic boolean evaluate(Object _nodeObject){\n\t\tObject ")
086: .append(type)
087: .append(
088: "=(_nodeObject instanceof Node)?((Node)_nodeObject).getImpl():_nodeObject;\n \t\t")
089: .append(formulaText).append("\n\t}\n");
090: classText.append("}\n");
091: // GroovyClassLoader loader = new GroovyClassLoader(ClassLoaderUtils.getLocalClassLoader());
092: GroovyClassLoader loader = new GroovyClassLoader(getClass()
093: .getClassLoader());
094: try {
095: Class groovyClass = loader.parseClass(classText.toString()); //TODO this his horribly slow (~500ms) Can we parse all at once or can we do this lazily or initialize in another thread?
096: t = (CommonTransform) groovyClass.newInstance();
097: setProperties(t);
098: return t;
099: } catch (Exception e) {
100: throw new InvalidFormulaException(e);
101: }
102: }
103:
104: public String getType() {
105: return type;
106: }
107:
108: public void setType(String type) {
109: this.type = type;
110: }
111:
112: }
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