/*
* Licensed 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 com.facebook.presto.example;
import com.facebook.presto.spi.ColumnMetadata;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Function;
import com.google.common.collect.ImmutableList;
import java.net.URI;
import java.util.List;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Strings.isNullOrEmpty;
public class ExampleTable
{
private final String name;
private final List<ExampleColumn> columns;
private final List<ColumnMetadata> columnsMetadata;
private final List<URI> sources;
@JsonCreator
public ExampleTable(
@JsonProperty("name") String name,
@JsonProperty("columns") List<ExampleColumn> columns,
@JsonProperty("sources") List<URI> sources)
{
checkArgument(!isNullOrEmpty(name), "name is null or is empty");
this.name = checkNotNull(name, "name is null");
this.columns = ImmutableList.copyOf(checkNotNull(columns, "columns is null"));
this.sources = ImmutableList.copyOf(checkNotNull(sources, "sources is null"));
int index = 0;
ImmutableList.Builder<ColumnMetadata> columnsMetadata = ImmutableList.builder();
for (ExampleColumn column : this.columns) {
columnsMetadata.add(new ColumnMetadata(column.getName(), column.getType(), index, false));
index++;
}
this.columnsMetadata = columnsMetadata.build();
}
@JsonProperty
public String getName()
{
return name;
}
@JsonProperty
public List<ExampleColumn> getColumns()
{
return columns;
}
@JsonProperty
public List<URI> getSources()
{
return sources;
}
public List<ColumnMetadata> getColumnsMetadata()
{
return columnsMetadata;
}
public static Function<ExampleTable, String> nameGetter()
{
return new Function<ExampleTable, String>()
{
@Override
public String apply(ExampleTable table)
{
return table.getName();
}
};
}
}