org.apache.sqoop.shell.ShowOptionFunction.java Source code

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Here is the source code for org.apache.sqoop.shell.ShowOptionFunction.java

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/**
 * 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.sqoop.shell;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.OptionBuilder;
import org.apache.sqoop.shell.core.Constants;
import org.apache.sqoop.validation.Status;

import static org.apache.sqoop.shell.ShellEnvironment.*;

/**
 * Show client internal options
 */
@SuppressWarnings("serial")
public class ShowOptionFunction extends SqoopFunction {
    /**
     * Construct new object.
     */
    @SuppressWarnings("static-access")
    public ShowOptionFunction() {
        this.addOption(OptionBuilder.hasArg().withArgName(Constants.OPT_NAME)
                .withDescription(resource.getString(Constants.RES_SET_PROMPT_OPT_NAME))
                .withLongOpt(Constants.OPT_NAME).create(Constants.OPT_NAME_CHAR));
    }

    @Override
    public boolean validateArgs(CommandLine line) {
        if (line.getArgs().length == 1) {
            printAllOptions();
            return false;
        }
        return true;
    }

    /**
     * Execute this function from parsed command line.
     */
    @Override
    public Object executeFunction(CommandLine line, boolean isInteractive) {
        if (line.hasOption(Constants.OPT_NAME)) {
            String optionName = line.getOptionValue(Constants.OPT_NAME);

            if (optionName.equals(Constants.OPT_VERBOSE)) {
                printVerbose();
            }

            if (optionName.equals(Constants.OPT_POLL_TIMEOUT)) {
                printPollTimeout();
            }
        } else {
            printAllOptions();
            return null;
        }

        return Status.OK;
    }

    /**
     * Print all known client options.
     */
    private void printAllOptions() {
        printVerbose();
        printPollTimeout();
    }

    /**
     * Print verbose option.
     */
    private void printVerbose() {
        print("Verbose = ");
        println(String.valueOf(isVerbose()));
    }

    /**
     * Print poll-timeout option.
     */
    private void printPollTimeout() {
        print("Poll-timeout = ");
        println(String.valueOf(getPollTimeout()));
    }
}