com.generallycloud.baseio.codec.http2.hpack.ThrowableUtil Maven / Gradle / Ivy
/*
* Copyright 2015-2017 GenerallyCloud.com
*
* Licensed 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 com.generallycloud.baseio.codec.http2.hpack;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import com.generallycloud.baseio.common.CloseUtil;
public class ThrowableUtil {
private ThrowableUtil() {
}
/**
* Set the {@link StackTraceElement} for the given {@link Throwable}, using
* the {@link Class} and method name.
*/
public static T unknownStackTrace(T cause, Class clazz, String method) {
cause.setStackTrace(new StackTraceElement[] { new StackTraceElement(clazz.getName(), method, null, -1) });
return cause;
}
/**
* Gets the stack trace from a Throwable as a String.
*
* @param cause
* the {@link Throwable} to be examined
* @return the stack trace as generated by
* {@link Throwable#printStackTrace(java.io.PrintWriter)} method.
*/
public static String stackTraceToString(Throwable cause) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
PrintStream pout = new PrintStream(out);
cause.printStackTrace(pout);
pout.flush();
try {
return new String(out.toByteArray());
} finally {
CloseUtil.close(pout);
CloseUtil.close(out);
}
}
}