/* * 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.kafka.common.header.internals; import java.nio.ByteBuffer; import java.util.Arrays; import java.util.Objects; import org.apache.kafka.common.header.Header; import org.apache.kafka.common.utils.Utils; public class RecordHeader implements Header { private final String key; private ByteBuffer valueBuffer; private byte[] value; public RecordHeader(String key, byte[] value) { Objects.requireNonNull(key, "Null header keys are not permitted"); this.key = key; this.value = value; } public RecordHeader(String key, ByteBuffer valueBuffer) { Objects.requireNonNull(key, "Null header keys are not permitted"); this.key = key; this.valueBuffer = valueBuffer; } public String key() { return key; } public byte[] value() { if (value == null && valueBuffer != null) { value = Utils.toArray(valueBuffer); valueBuffer = null; } return value; } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; RecordHeader header = (RecordHeader) o; return (key == null ? header.key == null : key.equals(header.key)) && Arrays.equals(value(), header.value()); } @Override public int hashCode() { int result = key != null ? key.hashCode() : 0; result = 31 * result + Arrays.hashCode(value()); return result; } @Override public String toString() { return "RecordHeader(key = " + key + ", value = " + Arrays.toString(value()) + ")"; } }