JDK8/Java8源码在线阅读
/*
* 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) {
/**代码未完, 请加载全部代码(NowJava.com).**/
关注时代Java
关注时代Java