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	/*
	* Copyright (c) 2004, 2012, 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("&", "&").replace("<", "<");
	}
	}

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