/**
* 標準入力を読み込んでDFSにファイルを書き出す。 {@link FileList}形式で受け取ったTSV形式のファイルをModelオブジェクトに変換して、テンポラリ入力データとして配置する。
* 出力先はプロトコルの形式によって異なる。 利用可能なプロトコルは以下のとおり。
*
* <ul>
* <li>{@link com.asakusafw.bulkloader.transfer.FileProtocol.Kind#CONTENT}
* <li>{@link com.asakusafw.bulkloader.transfer.FileProtocol.Kind#CREATE_CACHE}
* <li>{@link com.asakusafw.bulkloader.transfer.FileProtocol.Kind#UPDATE_CACHE}
* </ul>
*
* @param bean パラメータを保持するBean
* @param user OSのユーザー名
* @return 出力結果（true：正常終了、false：異常終了）
*/
public boolean importFile(ImportBean bean, String user) {
// 標準入力を取得
FileList.Reader reader;
try {
reader = FileList.createReader(getInputStream());
} catch (IOException e) {
LOG.error(e, "TG-EXTRACTOR-02001", "標準入力からFileListの取得に失敗");
return false;
}
try {
// FileListの終端まで繰り返す
List<Future<?>> running = new ArrayList<>();
while (reader.next()) {
FileProtocol protocol = reader.getCurrentProtocol();
try (InputStream content = reader.openContent()) {
switch (protocol.getKind()) {
case CONTENT:
importContent(protocol, content, bean, user);
break;
case CREATE_CACHE:
case UPDATE_CACHE:
long recordCount = putCachePatch(protocol, content, bean, user);
Callable<?> builder = createCacheBuilder(protocol, bean, user, recordCount);
if (builder != null) {
LOG.debugMessage(
"Submitting cache builder: {0} {1}",
protocol.getKind(), protocol.getInfo().getTableName());
running.add(executor.submit(builder));
}
break;
default:
throw new AssertionError(protocol.getKind());
}
}
}
waitForCompleteTasks(bean, running);
// 正常終了
return true;
} catch (BulkLoaderSystemException e) {
LOG.log(e);
} catch (IOException e) {
// FileListの展開に失敗
LOG.error(e, "TG-EXTRACTOR-02001", "標準入力からFileListの取得に失敗");
} finally {
try {
reader.close();
} catch (IOException e) {
// ここで例外が発生した場合は握りつぶす
e.printStackTrace();
}
}
return false;
}
private long putCachePatch(
FileProtocol protocol, InputStream content, ImportBean bean, String user)
throws BulkLoaderSystemException {
assert protocol != null;
assert content != null;
assert bean != null;
assert user != null;
assert protocol.getKind() == FileProtocol.Kind.CREATE_CACHE
|| protocol.getKind() == FileProtocol.Kind.UPDATE_CACHE;
CacheInfo info = protocol.getInfo();
assert info != null;
ImportTargetTableBean targetTableBean = bean.getTargetTable(info.getTableName());
if (targetTableBean == null) {
// 対応するテーブルの定義がDSL存在しない場合異常終了する。
throw new BulkLoaderSystemException(
getClass(),
"TG-EXTRACTOR-02001",
MessageFormat.format("エントリに対応するテーブルの定義がDSL存在しない。テーブル名：{0}", info.getTableName()));
}
URI dfsFilePath = resolveLocation(bean, user, protocol.getLocation());
try (CacheStorage storage = new CacheStorage(new Configuration(), dfsFilePath)) {
LOG.info(
"TG-EXTRACTOR-11001", info.getId(), info.getTableName(), storage.getPatchProperties());
storage.putPatchCacheInfo(info);
LOG.info(
"TG-EXTRACTOR-11002", info.getId(), info.getTableName(), storage.getPatchProperties());
Class<?> targetTableModel = targetTableBean.getImportTargetType();
Path targetUri = storage.getPatchContents("0");
LOG.info("TG-EXTRACTOR-11003", info.getId(), info.getTableName(), targetUri);
long recordCount = write(targetTableModel, targetUri.toUri(), content);
LOG.info("TG-EXTRACTOR-11004", info.getId(), info.getTableName(), targetUri, recordCount);
LOG.info(
"TG-PROFILE-01002",
bean.getTargetName(),
bean.getBatchId(),
bean.getJobflowId(),
bean.getExecutionId(),
info.getTableName(),
recordCount);
return recordCount;
} catch (IOException e) {
throw new BulkLoaderSystemException(
e, getClass(), "TG-EXTRACTOR-11005", info.getId(), info.getTableName(), dfsFilePath);
}
}
private Callable<?> createCacheBuilder(
FileProtocol protocol, ImportBean bean, String user, long recordCount)
throws BulkLoaderSystemException {
assert protocol != null;
assert bean != null;
assert user != null;
CacheInfo info = protocol.getInfo();
URI location = resolveLocation(bean, user, protocol.getLocation());
assert info != null;
try {
switch (protocol.getKind()) {
case CREATE_CACHE:
return createCacheBuilder(CacheBuildClient.SUBCOMMAND_CREATE, bean, location, info);
case UPDATE_CACHE:
if (recordCount > 0) {
return createCacheBuilder(CacheBuildClient.SUBCOMMAND_UPDATE, bean, location, info);
} else {
return null;
}
default:
throw new AssertionError(protocol);
}
} catch (IOException e) {
throw new BulkLoaderSystemException(
e,
getClass(),
"TG-EXTRACTOR-12002",
protocol.getKind(),
info.getId(),
info.getTableName(),
bean.getTargetName(),
bean.getBatchId(),
bean.getJobflowId(),
bean.getExecutionId());
}
}