/*
* 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.hadoop.hive.ql.parse.repl.dump.io;
import org.apache.hadoop.hive.metastore.api.Partition;
import org.apache.hadoop.hive.ql.ErrorMsg;
import org.apache.hadoop.hive.ql.parse.ReplicationSpec;
import org.apache.hadoop.hive.ql.parse.SemanticException;
import org.apache.thrift.TException;
import org.apache.thrift.TSerializer;
import org.apache.thrift.protocol.TJSONProtocol;
import java.io.IOException;
import java.util.Map;
public class PartitionSerializer implements JsonWriter.Serializer {
public static final String FIELD_NAME="partitions";
private Partition partition;
PartitionSerializer(Partition partition) {
this.partition = partition;
}
@Override
public void writeTo(JsonWriter writer, ReplicationSpec additionalPropertiesProvider)
throws SemanticException, IOException {
TSerializer serializer = new TSerializer(new TJSONProtocol.Factory());
try {
if (additionalPropertiesProvider.isInReplicationScope()) {
partition.putToParameters(
ReplicationSpec.KEY.CURR_STATE_ID.toString(),
additionalPropertiesProvider.getCurrentReplicationState());
if (isPartitionExternal()) {
// Replication destination will not be external
partition.putToParameters("EXTERNAL", "FALSE");
}
}
writer.jsonGenerator.writeString(serializer.toString(partition, UTF_8));
writer.jsonGenerator.flush();
} catch (TException e) {
throw new SemanticException(ErrorMsg.ERROR_SERIALIZE_METASTORE.getMsg(), e);
}
}
private boolean isPartitionExternal() {
Map<String, String> params = partition.getParameters();
return params.containsKey("EXTERNAL")
&& params.get("EXTERNAL").equalsIgnoreCase("TRUE");
}
}