001: /*
002: * $RCSfile: Capabilities.java,v $
003: *
004: * Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * Redistribution and use in source and binary forms, with or without
007: * modification, are permitted provided that the following conditions
008: * are met:
009: *
010: * - Redistribution of source code must retain the above copyright
011: * notice, this list of conditions and the following disclaimer.
012: *
013: * - Redistribution in binary form must reproduce the above copyright
014: * notice, this list of conditions and the following disclaimer in
015: * the documentation and/or other materials provided with the
016: * distribution.
017: *
018: * Neither the name of Sun Microsystems, Inc. or the names of
019: * contributors may be used to endorse or promote products derived
020: * from this software without specific prior written permission.
021: *
022: * This software is provided "AS IS," without a warranty of any
023: * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
024: * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
025: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
026: * EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
027: * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
028: * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
029: * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
030: * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
031: * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
032: * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
033: * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
034: * POSSIBILITY OF SUCH DAMAGES.
035: *
036: * You acknowledge that this software is not designed, licensed or
037: * intended for use in the design, construction, operation or
038: * maintenance of any nuclear facility.
039: *
040: * $Revision: 1.2 $
041: * $Date: 2007/02/09 17:17:00 $
042: * $State: Exp $
043: */
044:
045: package org.jdesktop.j3d.utils.capability;
046:
047: import java.util.ArrayList;
048:
049: /**
050: * Convenience class for extracting capability information from a SceneGraph Object
051: *
052: * @author Paul Byrne
053: * @version 1.6, 01/18/02
054: */
055: public class Capabilities extends Object {
056:
057: /** Print a list of SET capabilities to stdout, one capability per line
058: * @param obj The Object for which to print the capabilities
059: */
060: public static void printCapabilities(
061: javax.media.j3d.SceneGraphObject obj) {
062: ArrayList list = new ArrayList();
063: getCapabilities(obj, list);
064: java.util.Iterator it = list.iterator();
065: while (it.hasNext())
066: System.out.println((String) it.next());
067: }
068:
069: /** Extract the names of all the SET capabilities in the object.
070: * The names (Strings) are appended to the arrayList
071: * @param obj The object for which to extract the capability strings
072: * @param capabilityStrings The ArrayList to which the capability names will be appended
073: */
074: public static void getCapabilities(
075: javax.media.j3d.SceneGraphObject obj,
076: java.util.ArrayList capabilityStrings) {
077:
078: int value;
079: String str;
080: Class cl = obj.getClass();
081:
082: java.lang.reflect.Field[] fields = cl.getFields();
083:
084: try {
085: for (int i = 0; i < fields.length; i++) {
086: str = fields[i].getName();
087: value = fields[i].getInt(fields[i]);
088: if (str.indexOf("ALLOW") != -1
089: || str.indexOf("ENABLE_") != -1) {
090: if (obj.getCapability(value))
091: capabilityStrings.add(str);
092: }
093: }
094: } catch (Exception e) {
095: e.printStackTrace();
096: throw new RuntimeException("Internal Error");
097: }
098: }
099:
100: /**
101: * Return an array of capability bits for the object
102: *
103: * If no capabilities are set then an array of length 0 is returned
104: *
105: * @param obj The object for which to extract the capability bits
106: */
107: public static int[] getCapabilities(
108: javax.media.j3d.SceneGraphObject obj) {
109: ArrayList bits = new ArrayList();
110:
111: int value;
112: String str;
113: Class cl = obj.getClass();
114:
115: java.lang.reflect.Field[] fields = cl.getFields();
116:
117: try {
118: for (int i = 0; i < fields.length; i++) {
119: str = fields[i].getName();
120: value = fields[i].getInt(fields[i]);
121: if (str.indexOf("ALLOW_") != -1
122: || str.indexOf("ENABLE_") != -1) {
123: if (obj.getCapability(value))
124: bits.add(new Integer(value));
125: }
126: }
127: } catch (Exception e) {
128: e.printStackTrace();
129: throw new RuntimeException("Internal Error");
130: }
131:
132: int[] ret = new int[bits.size()];
133: for (int i = 0; i < ret.length; i++)
134: ret[i] = ((Integer) bits.get(i)).intValue();
135:
136: return ret;
137: }
138: }
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