import java.io.BufferedWriter;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.Writer;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import java.util.stream.Collectors;

import javax.annotation.Resource;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

                    }
                } else {
                    logger.warn("Failed to send {} to {}. HTTP Status is {}. {}", body, url, response.getHttpStatusCode(),
                            response.getContentAsString());
                }
            } catch (final IOException e) {
                logger.warn("Failed to send {} to {}.", body, url, e);
            }
        }));
    }

                        if (file != null) {
                            return file;
                        }
                    }
                } catch (final Exception e) {
                    logger.warn("Failed to load {}", fileMap, e);
                }
                return null;

    READY,
    NOT_READY,
    DONE,
    FAILED,
  }

  @CheckForNull private T next;

  @CheckForNull
  protected abstract T computeNext();

  @CanIgnoreReturnValue
  @CheckForNull
  protected final T endOfData() {
    state = State.DONE;
    return null;
  }

  @Override
  public final boolean hasNext() {
    checkState(state != State.FAILED);
    switch (state) {
      case DONE:

        final KeyMatch keyMatch = getKeyMatch(body).map(entity -> {
            try {
                keyMatchService.store(entity);
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);
                throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)));
            }
            return entity;

        final BoostDocumentRule boostDoc = getBoostDocumentRule(body).map(entity -> {
            try {
                boostDocumentRuleService.store(entity);
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);
                throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)));
            }
            return entity;

            try {
                unregister(scheduledJob);
            } catch (final Exception e) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Failed to delete Job {}", scheduledJob, e);
                }
            }
            return;
        }

        final FessConfig fessConfig = ComponentUtil.getFessConfig();

                switch (saveImage(input, outputFile)) {
                case OK:
                    created = true;
                    break;
                case FAILED:
                    logger.warn("Failed to create thumbnail: {} -> {}", thumbnailId, responseData.getUrl());
                    break;
                case INVALID_SIZE:

                throw new DictionaryException("Failed to write: " + oldItem + " -> " + item, e);
            }
        }

        public void write(final String line) {
            try {
                writer.write(line);
                writer.write(Constants.LINE_SEPARATOR);
            } catch (final IOException e) {
                throw new DictionaryException("Failed to write: " + line, e);
            }
        }

                throw new DictionaryException("Failed to write: " + oldItem + " -> " + item, e);
            }
        }

        public void write(final String line) {
            try {
                writer.write(line);
                writer.write(Constants.LINE_SEPARATOR);
            } catch (final IOException e) {
                throw new DictionaryException("Failed to write: " + line, e);
            }
        }