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c458c05801
The dark lord Gosling designed the Java package naming system so that ownership flows from the DNS system. Since we own the domain name registry.google, it seems only appropriate that we should use google.registry as our package name.
70 lines
2.3 KiB
Java
70 lines
2.3 KiB
Java
// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.util;
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import static com.google.common.base.Preconditions.checkNotNull;
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import static com.google.common.io.BaseEncoding.base16;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import javax.annotation.Nullable;
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/** Utilities for easy serialization with informative error messages. */
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public final class SerializeUtils {
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/**
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* Turns an object into a byte array.
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*
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* @return serialized object or {@code null} if {@code value} is {@code null}
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*/
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@Nullable
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public static byte[] serialize(@Nullable Object value) {
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if (value == null) {
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return null;
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}
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ByteArrayOutputStream objectBytes = new ByteArrayOutputStream();
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try (ObjectOutputStream oos = new ObjectOutputStream(objectBytes)) {
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oos.writeObject(value);
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} catch (IOException e) {
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throw new IllegalArgumentException("Unable to serialize: " + value, e);
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}
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return objectBytes.toByteArray();
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}
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/**
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* Turns a byte array into an object.
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*
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* @return deserialized object or {@code null} if {@code objectBytes} is {@code null}
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*/
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@Nullable
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public static <T> T deserialize(Class<T> type, @Nullable byte[] objectBytes) {
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checkNotNull(type);
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if (objectBytes == null) {
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return null;
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}
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try {
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return type.cast(new ObjectInputStream(new ByteArrayInputStream(objectBytes)).readObject());
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} catch (ClassNotFoundException | IOException e) {
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throw new IllegalArgumentException(
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"Unable to deserialize: objectBytes=" + base16().encode(objectBytes), e);
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}
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}
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private SerializeUtils() {}
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}
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