org.ow2.petals.cli.command.Load Maven / Gradle / Ivy

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/**
 * Copyright (c) 2010-2012 EBM WebSourcing, 2012-2023 Linagora
 * 
 * This program/library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 2.1 of the License, or (at your
 * option) any later version.
 * 
 * This program/library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
 * for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program/library; If not, see http://www.gnu.org/licenses/
 * for the GNU Lesser General Public License version 2.1.
 */
package org.ow2.petals.cli.command;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

import org.apache.commons.cli.CommandLine;
import org.ow2.petals.cli.api.command.AbstractCommand;
import org.ow2.petals.cli.api.command.exception.CommandBadArgumentNumberException;
import org.ow2.petals.cli.api.command.exception.CommandException;

/**
 * This command load properties from a file to the current shell.
 * @author Sebastien Andre - EBM WebSourcing
 * @author Alexandre Lagane - Linagora
 */
public class Load extends AbstractCommand {

    public Load() {
        super();
        this.setUsage("");
        this.setDescription("Load properties from files");
    }

    /**
     * {@inheritDoc}
     * 
     * 
     * Dedicated processing to the command 'load': No connection is required to
     * execute it.
     * 
     */
    @Override
    public boolean isConnectionRequired(CommandLine cli) {
        return false;
    }

    @Override
    public void doExecute(CommandLine cli, final String... args) throws CommandException {
        if (!this.checkArguments(args, 1)) {
            throw new CommandBadArgumentNumberException(this);
        }

        try {
            for (final String path : args) {
                this.getShell().getPrintStream().println("Loading properties from " + path);
                final FileInputStream fis = new FileInputStream(new File(path));
                try {
                    System.getProperties().load(fis);
                } finally {
                    fis.close();
                }
            }
        } catch (final IOException e) {
            throw new CommandException(this, e);
        }
    }

}