content: /*
   * 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.arrow.memory.ArrowBuf;
  import org.apache.arrow.vector.complex.writer.Decimal256Writer;
  import org.apache.arrow.vector.complex.writer.DecimalWriter;
  import org.apache.arrow.vector.holders.Decimal256Holder;
  import org.apache.arrow.vector.holders.DecimalHolder;
  
  
  import java.lang.UnsupportedOperationException;
  import java.math.BigDecimal;
  
  <@pp.dropOutputFile />
  <#list ["List", "ListView", "LargeList", "LargeListView"] as listName>
  
  <@pp.changeOutputFile name="/org/apache/arrow/vector/complex/impl/Union${listName}Writer.java" />
  
  <#include "/@includes/license.ftl" />
  
  package org.apache.arrow.vector.complex.impl;
  
  import static org.apache.arrow.memory.util.LargeMemoryUtil.checkedCastToInt;
  <#include "/@includes/vv_imports.ftl" />
  
  <#function is_timestamp_tz type>
    <#return type?starts_with("TimeStamp") && type?ends_with("TZ")>
  </#function>
  
  /*
   * This class is generated using freemarker and the ${.template_name} template.
   */
  
  @SuppressWarnings("unused")
  public class Union${listName}Writer extends AbstractFieldWriter {
  
    protected ${listName}Vector vector;
    protected PromotableWriter writer;
    private boolean inStruct = false;
    private boolean listStarted = false;
    private String structName;
    private ArrowType extensionType;
    <#if listName == "LargeList" || listName == "LargeListView">
    private static final long OFFSET_WIDTH = 8;
    <#else>
    private static final int OFFSET_WIDTH = 4;
    </#if>
  
    <#if listName == "ListView">
    private static final long SIZE_WIDTH = 4;
    </#if>
    <#if listName == "LargeListView">
    private static final long SIZE_WIDTH = 8;
    </#if>
  
    public Union${listName}Writer(${listName}Vector vector) {
      this(vector, NullableStructWriterFactory.getNullableStructWriterFactoryInstance());
    }
  
    public Union${listName}Writer(${listName}Vector vector, NullableStructWriterFactory nullableStructWriterFactory) {
      this.vector = vector;
      <#if listName = "ListView" || listName = "LargeListView">
      this.writer = new PromotableViewWriter(vector.getDataVector(), vector, nullableStructWriterFactory);
      <#else>
      this.writer = new PromotableWriter(vector.getDataVector(), vector, nullableStructWriterFactory);
      </#if>
    }
  
    public Union${listName}Writer(${listName}Vector vector, AbstractFieldWriter parent) {
      this(vector);
    }
  
    @Override
    public void allocate() {
      vector.allocateNew();
    }
  
    @Override
    public void clear() {
      vector.clear();
    }
  
    @Override
    public Field getField() {
      return vector.getField();
    }
  
    public void setValueCount(int count) {
      vector.setValueCount(count);
    }
  
    @Override
    public int getValueCapacity() {
      return vector.getValueCapacity();
    }
  
    @Override
    public void close() throws Exception {
      vector.close();
      writer.close();
    }
  
    @Override
    public void setPosition(int index) {
      super.setPosition(index);
    }
  
    <#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 />
    <#assign vectName = capName />
    @Override
    public ${minor.class}Writer ${lowerName}() {
      return this;
    }
  
    <#if minor.typeParams?? >
    @Override
    public ${minor.class}Writer ${lowerName}(String name<#list minor.typeParams as typeParam>, ${typeParam.type} ${typeParam.name}</#list>) {
      return writer.${lowerName}(name<#list minor.typeParams as typeParam>, ${typeParam.name}</#list>);
    }
    </#if>
  
    @Override
    public ${minor.class}Writer ${lowerName}(String name) {
      structName = name;
      return writer.${lowerName}(name);
    }
  
    </#list></#list>
  
    @Override
    public StructWriter struct() {
      inStruct = true;
      return this;
    }
  
    @Override
    public ListWriter list() {
      return writer;
    }
  
    @Override
    public ListWriter list(String name) {
      ListWriter listWriter = writer.list(name);
      return listWriter;
    }
  
    @Override
    public ListWriter listView() {
      return writer;
    }
  
    @Override
    public ListWriter listView(String name) {
      ListWriter listWriter = writer.listView(name);
      return listWriter;
    }
  
    @Override
    public StructWriter struct(String name) {
      StructWriter structWriter = writer.struct(name);
      return structWriter;
    }
  
    @Override
    public MapWriter map() {
      return writer;
    }
  
    @Override
    public MapWriter map(String name) {
      MapWriter mapWriter = writer.map(name);
      return mapWriter;
    }
  
    @Override
    public MapWriter map(boolean keysSorted) {
      writer.map(keysSorted);
      return writer;
    }
  
    @Override
    public MapWriter map(String name, boolean keysSorted) {
      MapWriter mapWriter = writer.map(name, keysSorted);
      return mapWriter;
    }
  
    @Override
    public ExtensionWriter extension(ArrowType arrowType) {
      this.extensionType = arrowType;
      return this;
    }
    @Override
    public ExtensionWriter extension(String name, ArrowType arrowType) {
      ExtensionWriter extensionWriter = writer.extension(name, arrowType);
      return extensionWriter;
    }
  
    <#if listName == "LargeList">
    @Override
    public void startList() {
      vector.startNewValue(idx());
      writer.setPosition(checkedCastToInt(vector.getOffsetBuffer().getLong((idx() + 1L) * OFFSET_WIDTH)));
      listStarted = true;
    }
  
    @Override
    public void endList() {
      vector.getOffsetBuffer().setLong((idx() + 1L) * OFFSET_WIDTH, writer.idx());
      setPosition(idx() + 1);
      listStarted = false;
    }
    <#elseif listName == "ListView">
    @Override
    public void startList() {
      vector.startNewValue(idx());
      writer.setPosition(vector.getOffsetBuffer().getInt((idx()) * OFFSET_WIDTH));
      listStarted = true;
    }
  
    @Override
    public void endList() {
      int sizeUptoIdx = 0;
      for (int i = 0; i < idx(); i++) {
        sizeUptoIdx += vector.getSizeBuffer().getInt(i * SIZE_WIDTH);
      }
      vector.getSizeBuffer().setInt(idx() * SIZE_WIDTH, writer.idx() - sizeUptoIdx);
      setPosition(idx() + 1);
      listStarted = false;
    }
  
    @Override
    public void startListView() {
      vector.startNewValue(idx());
      writer.setPosition(vector.getOffsetBuffer().getInt((idx()) * OFFSET_WIDTH));
      listStarted = true;
    }
  
    @Override
    public void endListView() {
      int sizeUptoIdx = 0;
      for (int i = 0; i < idx(); i++) {
        sizeUptoIdx += vector.getSizeBuffer().getInt(i * SIZE_WIDTH);
      }
      vector.getSizeBuffer().setInt(idx() * SIZE_WIDTH, writer.idx() - sizeUptoIdx);
      setPosition(idx() + 1);
      listStarted = false;
    }
    <#elseif listName == "LargeListView">
    @Override
    public void startList() {
      vector.startNewValue(idx());
      writer.setPosition(vector.getOffsetBuffer().getInt((idx()) * OFFSET_WIDTH));
      listStarted = true;
    }
  
    @Override
    public void endList() {
      int sizeUptoIdx = 0;
      for (int i = 0; i < idx(); i++) {
        sizeUptoIdx += vector.getSizeBuffer().getInt(i * SIZE_WIDTH);
      }
      vector.getSizeBuffer().setInt(idx() * SIZE_WIDTH, writer.idx() - sizeUptoIdx);
      setPosition(idx() + 1);
      listStarted = false;
    }
  
    @Override
    public void startListView() {
      vector.startNewValue(idx());
      writer.setPosition(checkedCastToInt(vector.getOffsetBuffer().getInt((idx()) * OFFSET_WIDTH)));
      listStarted = true;
    }
  
    @Override
    public void endListView() {
      int sizeUptoIdx = 0;
      for (int i = 0; i < idx(); i++) {
        sizeUptoIdx += vector.getSizeBuffer().getInt(i * SIZE_WIDTH);
      }
      vector.getSizeBuffer().setInt(idx() * SIZE_WIDTH, writer.idx() - sizeUptoIdx);
      setPosition(idx() + 1);
      listStarted = false;
    }
    <#else>
    @Override
    public void startList() {
      vector.startNewValue(idx());
      writer.setPosition(vector.getOffsetBuffer().getInt((idx() + 1L) * OFFSET_WIDTH));
      listStarted = true;
    }
  
    @Override
    public void endList() {
      vector.getOffsetBuffer().setInt((idx() + 1L) * OFFSET_WIDTH, writer.idx());
      setPosition(idx() + 1);
      listStarted = false;
    }
    </#if>
  
    @Override
    public void start() {
      writer.start();
    }
  
    @Override
    public void end() {
      writer.end();
      inStruct = false;
    }
  
    @Override
    public void writeNull() {
      if (!listStarted){
        vector.setNull(idx());
      } else {
        writer.writeNull();
      }
    }
  
    @Override
    public void writeExtension(Object value) {
      writer.writeExtension(value);
      writer.setPosition(writer.idx() + 1);
    }
  
    @Override
    public void addExtensionTypeWriterFactory(ExtensionTypeWriterFactory var1) {
      writer.addExtensionTypeWriterFactory(var1, extensionType);
    }
  
    public void write(ExtensionHolder var1) {
      writer.write(var1);
      writer.setPosition(writer.idx() + 1);
    }
  
    <#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/>
    @Override
    public void write${name}(<#list fields as field>${field.type} ${field.name}<#if field_has_next>, </#if></#list>) {
      writer.write${name}(<#list fields as field>${field.name}<#if field_has_next>, </#if></#list>);
      writer.setPosition(writer.idx()+1);
    }
  
    <#if is_timestamp_tz(minor.class) || minor.class == "Duration" || minor.class == "FixedSizeBinary">
    @Override
    public void write(${name}Holder holder) {
      writer.write(holder);
      writer.setPosition(writer.idx()+1);
    }
  
    <#elseif minor.class?starts_with("Decimal")>
    public void write${name}(long start, ArrowBuf buffer, ArrowType arrowType) {
      writer.write${name}(start, buffer, arrowType);
      writer.setPosition(writer.idx()+1);
    }
  
    @Override
    public void write(${name}Holder holder) {
      writer.write(holder);
      writer.setPosition(writer.idx()+1);
    }
  
    public void write${name}(BigDecimal value) {
      writer.write${name}(value);
      writer.setPosition(writer.idx()+1);
    }
  
    public void writeBigEndianBytesTo${name}(byte[] value, ArrowType arrowType){
      writer.writeBigEndianBytesTo${name}(value, arrowType);
      writer.setPosition(writer.idx() + 1);
    }
    <#else>
    @Override
    public void write(${name}Holder holder) {
      writer.write${name}(<#list fields as field>holder.${field.name}<#if field_has_next>, </#if></#list>);
      writer.setPosition(writer.idx()+1);
    }
    </#if>
  
    <#if minor.class?ends_with("VarBinary")>
    @Override
    public void write${minor.class}(byte[] value) {
      writer.write${minor.class}(value);
      writer.setPosition(writer.idx() + 1);
    }
  
    @Override
    public void write${minor.class}(byte[] value, int offset, int length) {
      writer.write${minor.class}(value, offset, length);
      writer.setPosition(writer.idx() + 1);
    }
  
    @Override
    public void write${minor.class}(ByteBuffer value) {
      writer.write${minor.class}(value);
      writer.setPosition(writer.idx() + 1);
    }
  
    @Override
    public void write${minor.class}(ByteBuffer value, int offset, int length) {
      writer.write${minor.class}(value, offset, length);
      writer.setPosition(writer.idx() + 1);
    }
    <#elseif minor.class?ends_with("VarChar")>
    @Override
    public void write${minor.class}(Text value) {
      writer.write${minor.class}(value);
      writer.setPosition(writer.idx() + 1);
    }
  
    public void write${minor.class}(String value) {
      writer.write${minor.class}(value);
      writer.setPosition(writer.idx() + 1);
    }
    </#if>
  
      </#list>
    </#list>
  }
  </#list>
  