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/*
* 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.
*/
import org.apache.drill.common.types.TypeProtos.MinorType;
<@pp.dropOutputFile />
<@pp.changeOutputFile name="/org/apache/drill/exec/vector/complex/impl/AbstractPromotableFieldWriter.java" />
<#include "/@includes/license.ftl" />
package org.apache.drill.exec.vector.complex.impl;
<#include "/@includes/vv_imports.ftl" />
/*
* A FieldWriter which delegates calls to another FieldWriter. The delegate FieldWriter can be promoted to a new type
* when necessary. Classes that extend this class are responsible for handling promotion.
*
* This class is generated using freemarker and the ${.template_name} template.
*
*/
@SuppressWarnings("unused")
abstract class AbstractPromotableFieldWriter extends AbstractFieldWriter {
AbstractPromotableFieldWriter(FieldWriter parent) {
super(parent);
}
/**
* Retrieve the FieldWriter, promoting if it is not a FieldWriter of the specified type
* @param type
* @return
*/
abstract protected FieldWriter getWriter(MinorType type);
/**
* Return the current FieldWriter
* @return
*/
abstract protected FieldWriter getWriter();
@Override
public void start() {
getWriter(MinorType.MAP).start();
}
@Override
public void end() {
getWriter(MinorType.MAP).end();
}
@Override
public void startList() {
getWriter(MinorType.LIST).startList();
}
@Override
public void endList() {
getWriter(MinorType.LIST).endList();
}
<#list vv.types as type><#list type.minor as minor><#assign name = minor.class?cap_first />
<#assign fields = minor.fields!type.fields />
<#if minor.class?contains("VarDecimal")>
@Override
public void write${minor.class}(BigDecimal value) {
getWriter(MinorType.${name?upper_case}).write${minor.class}(value);
}
</#if>
@Override
public void write(${name}Holder holder) {
getWriter(MinorType.${name?upper_case}).write(holder);
}
<#-- This condition was added to cover previous decimal functionality for new VarDecimal type -->
<#if !minor.class?contains("Decimal") || minor.class?contains("VarDecimal")>
public void write${minor.class}(<#list fields as field>${field.type} ${field.name}<#if field_has_next>, </#if></#list>) {
getWriter(MinorType.${name?upper_case}).write${minor.class}(<#list fields as field>${field.name}<#if field_has_next>, </#if></#list>);
}
</#if>
</#list></#list>
public void writeNull() {
}
@Override
public MapWriter map() {
return getWriter(MinorType.LIST).map();
}
@Override
public ListWriter list() {
return getWriter(MinorType.LIST).list();
}
@Override
public MapWriter map(String name) {
return getWriter(MinorType.MAP).map(name);
}
@Override
public ListWriter list(String name) {
return getWriter(MinorType.MAP).list(name);
}
<#list vv.types as type><#list type.minor as minor>
<#assign lowerName = minor.class?uncap_first />
<#if lowerName == "int" ><#assign lowerName = "integer" /></#if>
<#assign upperName = minor.class?upper_case />
<#assign capName = minor.class?cap_first />
<#if minor.class?contains("Decimal")>
@Override
public ${capName}Writer ${lowerName}(String name, int scale, int precision) {
return getWriter(MinorType.MAP).${lowerName}(name, scale, precision);
}
@Override
public ${capName}Writer ${lowerName}(int scale, int precision) {
return getWriter(MinorType.LIST).${lowerName}(scale, precision);
}
<#else>
@Override
public ${capName}Writer ${lowerName}(String name) {
return getWriter(MinorType.MAP).${lowerName}(name);
}
@Override
public ${capName}Writer ${lowerName}() {
return getWriter(MinorType.LIST).${lowerName}();
}
</#if>
</#list></#list>
public void copyReader(FieldReader reader) {
getWriter().copyReader(reader);
}
public void copyReaderToField(String name, FieldReader reader) {
getWriter().copyReaderToField(name, reader);
}
}
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