bval-tck-jakarta/src/main/java/org/apache/bval/arquillian/LogTckFormatter.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.bval.arquillian;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.logging.LogRecord;
import java.util.logging.SimpleFormatter;

public class LogTckFormatter extends SimpleFormatter {
    @Override
    public String format(final LogRecord record) {
        final String message = formatMessage(record);
        String throwable = "";
        if (record.getThrown() != null) {
            final StringWriter sw = new StringWriter();
            final PrintWriter pw = new PrintWriter(sw);
            pw.println();
            record.getThrown().printStackTrace(pw);
            pw.close();
            throwable = sw.toString();
        }
        return String.format("[%s] %s%n%s", record.getLevel(), message, throwable);
    }
}