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 com.avira.couchdoop; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.Option; import org.apache.commons.cli.Options; import org.apache.commons.cli.ParseException; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.util.StringUtils; import java.net.URI; import java.util.ArrayList; import java.util.List; /** * {@link com.avira.couchdoop.Args} implementation which holds Couchbase connection settings. */ public class CouchbaseArgs extends Args { private List<URI> urls; private String bucket; private String password; public static final ArgDef ARG_COUCHBASE_URLS = new ArgDef('h', "couchbase.urls", true, true, "(required) comma separated URL list of one or more Couchbase nodes from the cluster"); public static final ArgDef ARG_COUCHBASE_BUCKET = new ArgDef('b', "couchbase.bucket", true, true, "(required) bucket name in the cluster you wish to use"); public static final ArgDef ARG_COUCHBASE_PASSWORD = new ArgDef('p', "couchbase.password", true, false, "(required) password for the bucket"); public static final List<ArgDef> ARGS_LIST = new ArrayList<>(3); static { ARGS_LIST.add(ARG_COUCHBASE_URLS); ARGS_LIST.add(ARG_COUCHBASE_BUCKET); ARGS_LIST.add(ARG_COUCHBASE_PASSWORD); } public CouchbaseArgs(Configuration conf) throws ArgsException { super(conf); } @Override public void loadFromHadoopConfiguration(Configuration conf) throws ArgsException { String rawUrls = conf.get(ARG_COUCHBASE_URLS.getPropertyName()); if (rawUrls != null) { urls = new ArrayList<>(); String[] urlStrings = StringUtils.split(conf.get(ARG_COUCHBASE_URLS.getPropertyName())); for (String urlString : urlStrings) { urls.add(URI.create(urlString)); } } bucket = conf.get(ARG_COUCHBASE_BUCKET.getPropertyName()); password = conf.get(ARG_COUCHBASE_PASSWORD.getPropertyName(), ""); } @Override public List<ArgDef> getArgsList() { return CouchbaseArgs.ARGS_LIST; } public List<URI> getUrls() { return urls; } public String getBucket() { return bucket; } public String getPassword() { return password; } }