| /* |
| * 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 |
| * |
| * https://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.avro.specific; |
| |
| import java.io.Externalizable; |
| import java.io.ObjectOutput; |
| import java.io.ObjectInput; |
| import java.io.IOException; |
| import org.apache.avro.AvroRuntimeException; |
| |
| import org.apache.avro.Conversion; |
| import org.apache.avro.Schema; |
| import org.apache.avro.generic.GenericRecord; |
| import org.apache.avro.io.ResolvingDecoder; |
| import org.apache.avro.io.Encoder; |
| import org.apache.avro.message.MessageDecoder; |
| import org.apache.avro.message.MessageEncoder; |
| |
| /** Base class for generated record classes. */ |
| public abstract class SpecificRecordBase |
| implements SpecificRecord, Comparable<SpecificRecord>, GenericRecord, Externalizable { |
| |
| public SpecificData getSpecificData() { |
| // Default implementation for backwards compatibility, overridden in generated |
| // code |
| return SpecificData.get(); |
| } |
| |
| public Conversion<?> getConversion(int field) { |
| // for backward-compatibility. no older specific classes have conversions. |
| return null; |
| } |
| |
| @Override |
| public void put(String fieldName, Object value) { |
| Schema.Field field = getSchema().getField(fieldName); |
| if (field == null) { |
| throw new AvroRuntimeException("Not a valid schema field: " + fieldName); |
| } |
| put(field.pos(), value); |
| } |
| |
| @Override |
| public Object get(String fieldName) { |
| Schema.Field field = getSchema().getField(fieldName); |
| if (field == null) { |
| throw new AvroRuntimeException("Not a valid schema field: " + fieldName); |
| } |
| return get(field.pos()); |
| } |
| |
| public Conversion<?> getConversion(String fieldName) { |
| return getConversion(getSchema().getField(fieldName).pos()); |
| } |
| |
| @Override |
| public boolean equals(Object that) { |
| if (that == this) |
| return true; // identical object |
| if (!(that instanceof SpecificRecord)) |
| return false; // not a record |
| if (this.getClass() != that.getClass()) |
| return false; // not same schema |
| return getSpecificData().compare(this, that, this.getSchema(), true) == 0; |
| } |
| |
| @Override |
| public int hashCode() { |
| return getSpecificData().hashCode(this, this.getSchema()); |
| } |
| |
| @Override |
| public int compareTo(SpecificRecord that) { |
| return getSpecificData().compare(this, that, this.getSchema()); |
| } |
| |
| @Override |
| public String toString() { |
| return getSpecificData().toString(this); |
| } |
| |
| @Override |
| public void writeExternal(ObjectOutput out) throws IOException { |
| new SpecificDatumWriter<>(getSchema()).write(this, SpecificData.getEncoder(out)); |
| } |
| |
| @Override |
| public void readExternal(ObjectInput in) throws IOException { |
| new SpecificDatumReader<>(getSchema()).read(this, SpecificData.getDecoder(in)); |
| } |
| |
| /** |
| * Returns true iff an instance supports the {@link MessageEncoder#encode} and |
| * {@link MessageDecoder#decode} operations. Should only be used by |
| * <code>SpecificDatumReader/Writer</code> to selectively use |
| * {@link #customEncode} and {@link #customDecode} to optimize the |
| * (de)serialization of values. |
| */ |
| protected boolean hasCustomCoders() { |
| return false; |
| } |
| |
| public void customEncode(Encoder out) throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public void customDecode(ResolvingDecoder in) throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| } |