org.elasticsearch.common.io.ThrowableObjectOutputStream Maven / Gradle / Ivy
/*
* Licensed to ElasticSearch and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. ElasticSearch 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.elasticsearch.common.io;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.ObjectStreamClass;
import java.io.OutputStream;
/**
*
*/
public class ThrowableObjectOutputStream extends ObjectOutputStream {
static final int TYPE_FAT_DESCRIPTOR = 0;
static final int TYPE_THIN_DESCRIPTOR = 1;
private static final String EXCEPTION_CLASSNAME = Exception.class.getName();
static final int TYPE_EXCEPTION = 2;
private static final String STACKTRACEELEMENT_CLASSNAME = StackTraceElement.class.getName();
static final int TYPE_STACKTRACEELEMENT = 3;
public ThrowableObjectOutputStream(OutputStream out) throws IOException {
super(out);
}
@Override
protected void writeStreamHeader() throws IOException {
writeByte(STREAM_VERSION);
}
@Override
protected void writeClassDescriptor(ObjectStreamClass desc) throws IOException {
if (desc.getName().equals(EXCEPTION_CLASSNAME)) {
write(TYPE_EXCEPTION);
} else if (desc.getName().equals(STACKTRACEELEMENT_CLASSNAME)) {
write(TYPE_STACKTRACEELEMENT);
} else {
Class clazz = desc.forClass();
if (clazz.isPrimitive() || clazz.isArray()) {
write(TYPE_FAT_DESCRIPTOR);
super.writeClassDescriptor(desc);
} else {
write(TYPE_THIN_DESCRIPTOR);
writeUTF(desc.getName());
}
}
}
}