Java tutorial
/* * 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.accumulo.test; import static java.nio.charset.StandardCharsets.UTF_8; import java.io.IOException; import java.util.ArrayList; import java.util.List; import org.apache.accumulo.core.client.AccumuloException; import org.apache.accumulo.core.client.AccumuloSecurityException; import org.apache.accumulo.core.client.TableNotFoundException; import org.apache.accumulo.core.client.security.tokens.PasswordToken; import org.apache.accumulo.core.util.CachedConfiguration; import org.apache.accumulo.server.cli.ClientOnRequiredTable; import org.apache.accumulo.server.client.HdfsZooInstance; import org.apache.hadoop.fs.FileSystem; import org.apache.hadoop.fs.Path; import com.beust.jcommander.Parameter; public class BulkImportDirectory { static class Opts extends ClientOnRequiredTable { @Parameter(names = { "-s", "--source" }, description = "directory to import from") String source = null; @Parameter(names = { "-f", "--failures" }, description = "directory to copy failures into: will be deleted before the bulk import") String failures = null; @Parameter(description = "<username> <password> <tablename> <sourcedir> <failuredir>") List<String> args = new ArrayList<>(); } public static void main(String[] args) throws IOException, AccumuloException, AccumuloSecurityException, TableNotFoundException { final FileSystem fs = FileSystem.get(CachedConfiguration.getInstance()); Opts opts = new Opts(); if (args.length == 5) { System.err.println("Deprecated syntax for BulkImportDirectory, please use the new style (see --help)"); final String user = args[0]; final byte[] pass = args[1].getBytes(UTF_8); final String tableName = args[2]; final String dir = args[3]; final String failureDir = args[4]; final Path failureDirPath = new Path(failureDir); fs.delete(failureDirPath, true); fs.mkdirs(failureDirPath); HdfsZooInstance.getInstance().getConnector(user, new PasswordToken(pass)).tableOperations() .importDirectory(tableName, dir, failureDir, false); } else { opts.parseArgs(BulkImportDirectory.class.getName(), args); fs.delete(new Path(opts.failures), true); fs.mkdirs(new Path(opts.failures)); opts.getConnector().tableOperations().importDirectory(opts.getTableName(), opts.source, opts.failures, false); } } }