org.apache.flink.runtime.rest.messages.json.SerializedThrowableDeserializer Maven / Gradle / Ivy
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* 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.flink.runtime.rest.messages.json;
import org.apache.flink.util.InstantiationUtil;
import org.apache.flink.util.SerializedThrowable;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonParser;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.DeserializationContext;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.deser.std.StdDeserializer;
import java.io.IOException;
import static org.apache.flink.runtime.rest.messages.json.SerializedThrowableSerializer.FIELD_NAME_SERIALIZED_THROWABLE;
/**
* JSON deserializer for {@link SerializedThrowable}.
*/
public class SerializedThrowableDeserializer extends StdDeserializer {
private static final long serialVersionUID = 1L;
public SerializedThrowableDeserializer() {
super(SerializedThrowable.class);
}
@Override
public SerializedThrowable deserialize(
final JsonParser p,
final DeserializationContext ctxt) throws IOException {
final JsonNode root = p.readValueAsTree();
final byte[] serializedException = root.get(FIELD_NAME_SERIALIZED_THROWABLE).binaryValue();
try {
return InstantiationUtil.deserializeObject(serializedException, ClassLoader.getSystemClassLoader());
} catch (ClassNotFoundException e) {
throw new IOException("Failed to deserialize " + SerializedThrowable.class.getCanonicalName(), e);
}
}
}