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.shell.commands; import java.util.Map; import java.util.Set; import org.apache.accumulo.core.client.AccumuloException; import org.apache.accumulo.core.client.AccumuloSecurityException; import org.apache.accumulo.core.security.Authorizations; import org.apache.accumulo.shell.Shell; import org.apache.accumulo.shell.Shell.Command; import org.apache.accumulo.shell.ShellOptions; import org.apache.accumulo.shell.Token; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.Option; import org.apache.commons.cli.OptionGroup; import org.apache.commons.cli.Options; public class AddAuthsCommand extends Command { private Option userOpt; private Option scanOptAuths; @Override public int execute(final String fullCommand, final CommandLine cl, final Shell shellState) throws AccumuloException, AccumuloSecurityException { final String user = cl.getOptionValue(userOpt.getOpt(), shellState.getConnector().whoami()); final String scanOpts = cl.getOptionValue(scanOptAuths.getOpt()); Authorizations auths = shellState.getConnector().securityOperations().getUserAuthorizations(user); StringBuilder userAuths = new StringBuilder(); if (!auths.isEmpty()) { userAuths.append(auths.toString()); userAuths.append(","); } userAuths.append(scanOpts); shellState.getConnector().securityOperations().changeUserAuthorizations(user, ScanCommand.parseAuthorizations(userAuths.toString())); Shell.log.debug("Changed record-level authorizations for user " + user); return 0; } @Override public String description() { return "adds authorizations to the maximum scan authorizations for a user"; } @Override public void registerCompletion(final Token root, final Map<Command.CompletionSet, Set<String>> completionSet) { registerCompletionForUsers(root, completionSet); } @Override public Options getOptions() { final Options o = new Options(); final OptionGroup setOrClear = new OptionGroup(); scanOptAuths = new Option("s", "scan-authorizations", true, "scan authorizations to set"); scanOptAuths.setArgName("comma-separated-authorizations"); setOrClear.addOption(scanOptAuths); setOrClear.setRequired(true); o.addOptionGroup(setOrClear); userOpt = new Option(ShellOptions.userOption, "user", true, "user to operate on"); userOpt.setArgName("user"); o.addOption(userOpt); return o; } @Override public int numArgs() { return 0; } }