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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.
*/
<@pp.dropOutputFile />
<@pp.changeOutputFile name="/org/apache/drill/exec/vector/complex/impl/UnionWriter.java" />
<#include "/@includes/license.ftl" />
package org.apache.drill.exec.vector.complex.impl;
<#include "/@includes/vv_imports.ftl" />
/*
* This class is generated using freemarker and the ${.template_name} template.
*/
public class UnionWriter extends AbstractFieldWriter implements FieldWriter {
// Accessed by UnionReader
protected UnionVector data;
private MapWriter mapWriter;
private UnionListWriter listWriter;
private List<BaseWriter> writers = Lists.newArrayList();
public UnionWriter(BufferAllocator allocator) {
super(null);
}
public UnionWriter(UnionVector vector) {
super(null);
data = vector;
}
public UnionWriter(UnionVector vector, FieldWriter parent) {
super(null);
data = vector;
}
@Override
public void setPosition(int index) {
super.setPosition(index);
for (BaseWriter writer : writers) {
writer.setPosition(index);
}
}
@Override
public void start() {
data.getMutator().setType(idx(), MinorType.MAP);
getMapWriter().start();
}
@Override
public void end() {
getMapWriter().end();
}
@Override
public void startList() {
getListWriter().startList();
data.getMutator().setType(idx(), MinorType.LIST);
}
@Override
public void endList() {
getListWriter().endList();
}
private MapWriter getMapWriter() {
if (mapWriter == null) {
mapWriter = new SingleMapWriter(data.getMap(), null, true);
mapWriter.setPosition(idx());
writers.add(mapWriter);
}
return mapWriter;
}
public MapWriter asMap() {
data.getMutator().setType(idx(), MinorType.MAP);
return getMapWriter();
}
private ListWriter getListWriter() {
if (listWriter == null) {
listWriter = new UnionListWriter(data.getList());
listWriter.setPosition(idx());
writers.add(listWriter);
}
return listWriter;
}
public ListWriter asList() {
data.getMutator().setType(idx(), MinorType.LIST);
return getListWriter();
}
<#list vv.types as type><#list type.minor as minor><#assign name = minor.class?cap_first />
<#assign fields = minor.fields!type.fields />
<#assign uncappedName = name?uncap_first/>
<#if !minor.class?starts_with("Decimal")>
private ${name}Writer ${name?uncap_first}Writer;
private ${name}Writer get${name}Writer() {
if (${uncappedName}Writer == null) {
${uncappedName}Writer = new Nullable${name}WriterImpl(data.get${name}Vector(), null);
${uncappedName}Writer.setPosition(idx());
writers.add(${uncappedName}Writer);
}
return ${uncappedName}Writer;
}
public ${name}Writer as${name}() {
data.getMutator().setType(idx(), MinorType.${name?upper_case});
return get${name}Writer();
}
@Override
public void write(${name}Holder holder) {
data.getMutator().setType(idx(), MinorType.${name?upper_case});
get${name}Writer().setPosition(idx());
get${name}Writer().write${name}(<#list fields as field>holder.${field.name}<#if field_has_next>, </#if></#list>);
}
public void write${minor.class}(<#list fields as field>${field.type} ${field.name}<#if field_has_next>, </#if></#list>) {
data.getMutator().setType(idx(), MinorType.${name?upper_case});
get${name}Writer().setPosition(idx());
get${name}Writer().write${name}(<#list fields as field>${field.name}<#if field_has_next>, </#if></#list>);
}
</#if>
</#list></#list>
public void writeNull() { }
@Override
public MapWriter map() {
data.getMutator().setType(idx(), MinorType.LIST);
getListWriter().setPosition(idx());
return getListWriter().map();
}
@Override
public ListWriter list() {
data.getMutator().setType(idx(), MinorType.LIST);
getListWriter().setPosition(idx());
return getListWriter().list();
}
@Override
public ListWriter list(String name) {
data.getMutator().setType(idx(), MinorType.MAP);
getMapWriter().setPosition(idx());
return getMapWriter().list(name);
}
@Override
public MapWriter map(String name) {
data.getMutator().setType(idx(), MinorType.MAP);
getMapWriter().setPosition(idx());
return getMapWriter().map(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?starts_with("Decimal")>
@Override
public ${capName}Writer ${lowerName}(String name) {
data.getMutator().setType(idx(), MinorType.MAP);
getMapWriter().setPosition(idx());
return getMapWriter().${lowerName}(name);
}
@Override
public ${capName}Writer ${lowerName}() {
data.getMutator().setType(idx(), MinorType.LIST);
getListWriter().setPosition(idx());
return getListWriter().${lowerName}();
}
</#if>
</#list></#list>
@Override
public void allocate() {
data.allocateNew();
}
@Override
public void clear() {
data.clear();
}
@Override
public void close() throws Exception {
data.close();
}
@Override
public MaterializedField getField() {
return data.getField();
}
@Override
public int getValueCapacity() {
return data.getValueCapacity();
}
}
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