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/*
* Copyright (c) 1998, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0,
* or the Eclipse Distribution License v. 1.0 which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
*/
// Contributors:
// Oracle - initial API and implementation from Oracle TopLink
package org.eclipse.persistence.logging;
import java.util.*;
import java.util.logging.XMLFormatter;
import java.util.logging.LogRecord;
import java.util.logging.Level;
/**
* <p>
* Format a TopLink LogRecord into a standard XML format.
* </p>
*/
@SuppressWarnings("deprecation")
public class XMLLogFormatter extends XMLFormatter {
// Append a two digit number.
private void a2(StringBuffer sb, int x) {
if (x < 10) {
sb.append('0');
}
sb.append(x);
}
// Append the time and date in ISO 8601 format
private void appendISO8601(StringBuffer sb, long millis) {
Date date = new Date(millis);
sb.append(date.getYear() + 1900);
sb.append('-');
a2(sb, date.getMonth() + 1);
sb.append('-');
a2(sb, date.getDate());
sb.append('T');
a2(sb, date.getHours());
sb.append(':');
a2(sb, date.getMinutes());
sb.append(':');
a2(sb, date.getSeconds());
}
// Append to the given StringBuffer an escaped version of the
// given text string where XML special characters have been escaped.
// For a null string we appebd "<null>"
private void escape(StringBuffer sb, String text) {
if (text == null) {
text = "<null>";
}
for (int i = 0; i < text.length(); i++) {
char ch = text.charAt(i);
if (ch == '<') {
sb.append("<");
} else if (ch == '>') {
sb.append(">");
} else if (ch == '&') {
sb.append("&");
} else {
sb.append(ch);
}
}
}
/**
* Format the given message to XML.
* @param record0 the log record to be formatted.
* @return a formatted log record
*/
public String format(LogRecord record0) {
if (!(record0 instanceof EclipseLinkLogRecord)) {
return super.format(record0);
} else {
EclipseLinkLogRecord record = (EclipseLinkLogRecord)record0;
StringBuffer sb = new StringBuffer(500);
sb.append("<record>\n");
if (record.shouldPrintDate()) {
sb.append(" <date>");
appendISO8601(sb, record.getMillis());
sb.append("</date>\n");
sb.append(" <millis>");
sb.append(record.getMillis());
sb.append("</millis>\n");
}
sb.append(" <sequence>");
sb.append(record.getSequenceNumber());
sb.append("</sequence>\n");
String name = record.getLoggerName();
if (name != null) {
sb.append(" <logger>");
escape(sb, name);
sb.append("</logger>\n");
}
sb.append(" <level>");
escape(sb, record.getLevel().toString());
sb.append("</level>\n");
if (record.getSourceClassName() != null) {
sb.append(" <class>");
escape(sb, record.getSourceClassName());
sb.append("</class>\n");
}
if (record.getSourceMethodName() != null) {
sb.append(" <method>");
escape(sb, record.getSourceMethodName());
sb.append("</method>\n");
}
if (record.getSessionString() != null) {
sb.append(" <session>");
sb.append(record.getSessionString());
sb.append("</session>\n");
}
if (record.getConnection() != null) {
sb.append(" <connection>");
sb.append(String.valueOf(System.identityHashCode(record.getConnection())));
sb.append("</connection>\n");
}
if (record.shouldPrintThread()) {
sb.append(" <thread>");
sb.append(record.getThreadID());
sb.append("</thread>\n");
}
if (record.getMessage() != null) {
// Format the message string and its accompanying parameters.
String message = formatMessage(record);
sb.append(" <message>");
escape(sb, message);
sb.append("</message>");
sb.append("\n");
}
// If the message is being localized, output the key, resource
// bundle name, and params.
ResourceBundle bundle = record.getResourceBundle();
try {
if ((bundle != null) && (bundle.getString(record.getMessage()) != null)) {
sb.append(" <key>");
escape(sb, record.getMessage());
sb.append("</key>\n");
sb.append(" <catalog>");
escape(sb, record.getResourceBundleName());
sb.append("</catalog>\n");
Object[] parameters = record.getParameters();
for (int i = 0; i < parameters.length; i++) {
sb.append(" <param>");
try {
escape(sb, parameters[i].toString());
} catch (Exception ex) {
sb.append("???");
}
sb.append("</param>\n");
}
}
} catch (Exception ex) {
// The message is not in the catalog. Drop through.
}
if (record.getThrown() != null) {
// Report on the state of the throwable.
Throwable th = record.getThrown();
sb.append(" <exception>\n");
sb.append(" <message>");
escape(sb, th.toString());
sb.append("</message>\n");
if ((record.getLevel().intValue() == Level.SEVERE.intValue()) ||
((record.getLevel().intValue() <= Level.WARNING.intValue()) && record.shouldLogExceptionStackTrace())) {
StackTraceElement[] trace = th.getStackTrace();
for (int i = 0; i < trace.length; i++) {
StackTraceElement frame = trace[i];
sb.append(" <frame>\n");
sb.append(" <class>");
escape(sb, frame.getClassName());
sb.append("</class>\n");
sb.append(" <method>");
escape(sb, frame.getMethodName());
sb.append("</method>\n");
// Check for a line number.
if (frame.getLineNumber() >= 0) {
sb.append(" <line>");
sb.append(frame.getLineNumber());
sb.append("</line>\n");
}
sb.append(" </frame>\n");
}
}
sb.append(" </exception>\n");
}
sb.append("</record>\n");
return sb.toString();
}
}
}
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