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.
   */
  package org.apache.asterix.external.input.record;
  
  import java.io.IOException;
  import java.nio.CharBuffer;
  import java.util.Arrays;
  
  import org.apache.asterix.common.exceptions.ErrorCode;
  import org.apache.asterix.common.exceptions.RuntimeDataException;
  import org.apache.asterix.external.api.IRawRecord;
  import org.apache.asterix.external.util.ExternalDataConstants;
  
  public class CharArrayRecord implements IRawRecord<char[]> {
  
      private char[] value;
      private int size;
  
      public CharArrayRecord(int initialCapacity) {
          value = new char[initialCapacity];
          size = 0;
      }
  
      public CharArrayRecord() {
          value = new char[ExternalDataConstants.DEFAULT_BUFFER_SIZE];
          size = 0;
      }
  
      @Override
      public byte[] getBytes() {
          return new String(value).getBytes();
      }
  
      @Override
      public char[] get() {
          return value;
      }
  
      @Override
      public int size() {
          return size;
      }
  
      public void setValue(char[] recordBuffer, int offset, int length) {
          if (value.length < length) {
              value = new char[length];
          }
          System.arraycopy(recordBuffer, offset, value, 0, length);
          size = length;
      }
  
      private void ensureCapacity(int len) throws RuntimeDataException {
          if (value.length < len) {
              if (len > ExternalDataConstants.MAX_RECORD_SIZE) {
                  throw new RuntimeDataException(ErrorCode.INPUT_RECORD_READER_CHAR_ARRAY_RECORD_TOO_LARGE,
                          ExternalDataConstants.MAX_RECORD_SIZE);
              }
              int newSize = Math.min((int) (len * ExternalDataConstants.DEFAULT_BUFFER_INCREMENT_FACTOR),
                      ExternalDataConstants.MAX_RECORD_SIZE);
              value = Arrays.copyOf(value, newSize);
          }
      }
  
      public void append(char[] recordBuffer, int offset, int length) throws RuntimeDataException {
          ensureCapacity(size + length);
          System.arraycopy(recordBuffer, offset, value, size, length);
          size += length;
      }
  
      @Override
      public void reset() {
          size = 0;
      }
  
      @Override
      public String toString() {
          return String.valueOf(value, 0, size == 0 ? 0 : size - 1);
      }
  
      public void endRecord() throws IOException {
          if (size > 0 && value[size - 1] != ExternalDataConstants.LF) {
              appendChar(ExternalDataConstants.LF);
          }
      }
  
      private void appendChar(char c) throws IOException {
          ensureCapacity(size + 1);
          value[size] = c;
          size++;
      }
  
      public void append(char[] recordBuffer) throws IOException {
          ensureCapacity(size + recordBuffer.length);
          System.arraycopy(recordBuffer, 0, value, size, recordBuffer.length);
          size += recordBuffer.length;
      }
  
      public void append(CharBuffer chars) throws IOException {
          ensureCapacity(size + chars.limit());
          chars.get(value, size, chars.limit());
          size += chars.limit();
      }
  
      @Override
      public void set(char[] value) {
          this.value = value;
          this.size = value.length;
      }
  
      public void set(StringBuilder builder) throws IOException {
          ensureCapacity(builder.length());
          builder.getChars(0, builder.length(), value, 0);
          this.size = builder.length();
      }
  
      public void set(String strValue) throws IOException {
          ensureCapacity(strValue.length());
          strValue.getChars(0, strValue.length(), value, 0);
          this.size = strValue.length();
      }
  
      public boolean isEmptyRecord() {
          return size <= 0
                  || (size == 1 && (value[0] == ExternalDataConstants.LF || value[0] == ExternalDataConstants.CR))
                  || (size == 2 && value[0] == ExternalDataConstants.CR && value[1] == ExternalDataConstants.LF);
      }
  }
  