/* * Copyright (c) 2004, 2006, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.tools.jconsole.inspector; import java.awt.Color;import java.awt.Component;import java.lang.reflect.Array;import java.util.Collection;import java.util.Map;import javax.swing.JEditorPane;import javax.swing.JScrollPane; class XArrayDataViewer {     private XArrayDataViewer() {}     public static boolean isViewableValue(Object value) {        return Utils.canBeRenderedAsArray(value);    }     public static Component loadArray(Object value) {        Component comp = null;        if (isViewableValue(value)) {            Object[] arr;            if (value instanceof Collection) {                arr = ((Collection) value).toArray();            } else if (value instanceof Map) {                arr = ((Map) value).entrySet().toArray();            } else if (value instanceof Object[]) {                arr = (Object[]) value;            } else {                int length = Array.getLength(value);                arr = new Object[length];                for (int i = 0; i < length; i++) {                    arr[i] = Array.get(value, i);                }            }            JEditorPane arrayEditor = new JEditorPane();            arrayEditor.setContentType("text/html");            arrayEditor.setEditable(false);            Color evenRowColor = arrayEditor.getBackground();            int red = evenRowColor.getRed();            int green = evenRowColor.getGreen();            int blue = evenRowColor.getBlue();            String evenRowColorStr =                    "rgb(" + red + "," + green + "," + blue + ")";            Color oddRowColor = new Color(                    red < 20 ? red + 20 : red - 20,                    green < 20 ? green + 20 : green - 20,                    blue < 20 ? blue + 20 : blue - 20);            String oddRowColorStr =                    "rgb(" + oddRowColor.getRed() + "," +                    oddRowColor.getGreen() + "," +                    oddRowColor.getBlue() + ")";            Color foreground = arrayEditor.getForeground();            String textColor = String.format("%06x",                                             foreground.getRGB() & 0xFFFFFF);            StringBuilder sb = new StringBuilder();            sb.append("<html><body text=#"+textColor+"><table width=\"100%\">");            for (int i = 0; i < arr.length; i++) {                if (i % 2 == 0) {                    sb.append("<tr style=\"background-color: " +                            evenRowColorStr + "\"><td><pre>" +                            (arr[i] == null ?                                arr[i] : htmlize(arr[i].toString())) +                            "</pre></td></tr>");                } else {                    sb.append("<tr style=\"background-color: " +                            oddRowColorStr + "\"><td><pre>" +                            (arr[i] == null ?                                arr[i] : htmlize(arr[i].toString())) +                            "</pre></td></tr>");                }            }            if (arr.length == 0) {                sb.append("<tr style=\"background-color: " +                        evenRowColorStr + "\"><td></td></tr>");            }            sb.append("</table></body></html>");            arrayEditor.setText(sb.toString());            JScrollPane scrollp = new JScrollPane(arrayEditor);            comp = scrollp;        }        return comp;    }     private static String htmlize(String value) {        return value.replace("&", "&amp;").replace("<", "&lt;");    }}