/*
* 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.beam.sdk.io.gcp.bigquery;
import com.google.common.annotations.VisibleForTesting;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.beam.sdk.coders.AtomicCoder;
import org.apache.beam.sdk.coders.CoderException;
import org.apache.beam.sdk.coders.StringUtf8Coder;
/**
* Defines a coder for {@link TableRowInfo} objects.
*/
@VisibleForTesting
class TableRowInfoCoder extends AtomicCoder<TableRowInfo> {
private static final TableRowInfoCoder INSTANCE = new TableRowInfoCoder();
public static TableRowInfoCoder of() {
return INSTANCE;
}
@Override
public void encode(TableRowInfo value, OutputStream outStream)
throws IOException {
encode(value, outStream, Context.NESTED);
}
@Override
public void encode(TableRowInfo value, OutputStream outStream, Context context)
throws IOException {
if (value == null) {
throw new CoderException("cannot encode a null value");
}
tableRowCoder.encode(value.tableRow, outStream);
idCoder.encode(value.uniqueId, outStream, context);
}
@Override
public TableRowInfo decode(InputStream inStream) throws IOException {
return decode(inStream, Context.NESTED);
}
@Override
public TableRowInfo decode(InputStream inStream, Context context)
throws IOException {
return new TableRowInfo(
tableRowCoder.decode(inStream),
idCoder.decode(inStream, context));
}
@Override
public void verifyDeterministic() throws NonDeterministicException {
throw new NonDeterministicException(this, "TableRows are not deterministic.");
}
TableRowJsonCoder tableRowCoder = TableRowJsonCoder.of();
StringUtf8Coder idCoder = StringUtf8Coder.of();
}