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A module that is everything required to understands Druid Segments
/*
* 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.druid.data.input.impl;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Optional;
import org.apache.druid.java.util.common.parsers.Parser;
import org.apache.druid.java.util.common.parsers.RegexParser;
import java.util.List;
/**
*/
public class RegexParseSpec extends ParseSpec
{
private final String listDelimiter;
private final List columns;
private final String pattern;
@JsonCreator
public RegexParseSpec(
@JsonProperty("timestampSpec") TimestampSpec timestampSpec,
@JsonProperty("dimensionsSpec") DimensionsSpec dimensionsSpec,
@JsonProperty("listDelimiter") String listDelimiter,
@JsonProperty("columns") List columns,
@JsonProperty("pattern") String pattern
)
{
super(timestampSpec, dimensionsSpec);
this.listDelimiter = listDelimiter;
this.columns = columns;
this.pattern = pattern;
}
@JsonProperty
public String getListDelimiter()
{
return listDelimiter;
}
@JsonProperty("pattern")
public String getPattern()
{
return pattern;
}
@JsonProperty
public List getColumns()
{
return columns;
}
@Override
public Parser makeParser()
{
if (columns == null) {
return new RegexParser(pattern, Optional.fromNullable(listDelimiter));
}
return new RegexParser(pattern, Optional.fromNullable(listDelimiter), columns);
}
@Override
public ParseSpec withTimestampSpec(TimestampSpec spec)
{
return new RegexParseSpec(spec, getDimensionsSpec(), listDelimiter, columns, pattern);
}
@Override
public ParseSpec withDimensionsSpec(DimensionsSpec spec)
{
return new RegexParseSpec(getTimestampSpec(), spec, listDelimiter, columns, pattern);
}
}