/*
*
* Copyright 2013 Netflix, Inc.
*
* 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.netflix.zeno.hash;
import com.netflix.zeno.hash.HashGenericRecordSerializers.Serializer;
import com.netflix.zeno.serializer.NFSerializationRecord;
/**
*
* @author tvaliulin
*
*/
public final class HashGenericRecord extends NFSerializationRecord {
HashAlgorithm hasher;
public HashGenericRecord() {
this(new HashOrderDependent());
}
public HashGenericRecord(HashAlgorithm hasher) {
this.hasher = hasher;
}
public Object get(int arg0) {
throw new UnsupportedOperationException();
}
public void put(int arg0, Object arg1) {
write(arg0);
write(arg1);
}
public void put(String arg0, Object arg1) {
write(arg0);
write(":");
write(arg1);
}
private void write(Object obj) {
try {
if (obj == null) {
hasher.write(0);
return;
}
if (obj.getClass().isEnum()) {
hasher.write(((Enum<?>) obj).name());
} else if (obj.getClass().isArray()) {
if (obj.getClass().getComponentType().isPrimitive()) {
Serializer serializer = HashGenericRecordSerializers.getPrimitiveArraySerializer(obj.getClass().getComponentType());
if (serializer == null) {
throw new RuntimeException("Can't find serializer for array of type:" + obj.getClass());
}
serializer.serialize(hasher, obj);
} else {
Object[] objects = (Object[]) obj;
for (Object object : objects) {
write(object);
}
}
} else {
Serializer serializer = HashGenericRecordSerializers.getTypeSerializer(obj.getClass());
if (serializer == null) {
throw new RuntimeException("Can't find serializer for type:" + obj.getClass());
}
serializer.serialize(hasher, obj);
}
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
public byte[] hash() {
return hasher.bytes();
}
}