org.apereo.portal.shell.PortalShell.java Source code

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Here is the source code for org.apereo.portal.shell.PortalShell.java

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/**
 * Licensed to Apereo under one or more contributor license
 * agreements. See the NOTICE file distributed with this work
 * for additional information regarding copyright ownership.
 * Apereo 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 the following location:
 *
 *   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.apereo.portal.shell;

import groovy.lang.Binding;
import groovy.lang.GroovyShell;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.commons.cli.PosixParser;
import org.apache.tools.ant.util.FileUtils;
import org.codehaus.groovy.control.CompilerConfiguration;
import org.codehaus.groovy.tools.shell.Groovysh;
import org.codehaus.groovy.tools.shell.IO;
import org.apereo.portal.utils.PortalApplicationContextLocator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.context.ApplicationContext;

/**
 * @author Eric Dalquist
 */
public class PortalShell {
    static final Logger LOGGER = LoggerFactory.getLogger(PortalShell.class);

    protected static Options getOptions() {
        final Options options = new Options();

        options.addOption(new Option("s", "script", true, "Groovy script to execute in the uPortal Shell."));

        return options;
    }

    public static void main(String[] args) throws Exception {
        final Options options = getOptions();

        final CommandLineParser parser = new PosixParser();
        final CommandLine commandLine;
        try {
            commandLine = parser.parse(options, args);
        } catch (ParseException e) {
            System.err.println(e.getMessage());
            printHelp(options);
            return;
        }

        final ApplicationContext applicationContext = PortalApplicationContextLocator.getApplicationContext();
        try {
            final Binding binding = new SpringBinding(applicationContext);
            binding.setVariable("logger", LOGGER);

            if (commandLine.hasOption("script")) {
                final String scriptName = commandLine.getOptionValue("script");
                final File scriptFile = getAbsoluteFile(scriptName);

                final CompilerConfiguration conf = new CompilerConfiguration(System.getProperties());
                final GroovyShell shell = new GroovyShell(binding, conf);
                shell.run(scriptFile, args);
            } else {
                final Groovysh shell = new Groovysh(binding, new IO());
                shell.run();
            }
        } finally {
            if (applicationContext instanceof DisposableBean) {
                ((DisposableBean) applicationContext).destroy();
            }
        }
    }

    protected static void printHelp(final Options options) {
        final HelpFormatter formatter = new HelpFormatter();
        final PrintWriter pw = new PrintWriter(System.err);
        formatter.printHelp(pw, HelpFormatter.DEFAULT_WIDTH, "java " + PortalShell.class.getName(), null, options,
                HelpFormatter.DEFAULT_LEFT_PAD, HelpFormatter.DEFAULT_DESC_PAD, null, true);
        pw.flush();
    }

    protected static File getAbsoluteFile(final String filePath) {
        final File file;
        if (FileUtils.isAbsolutePath(filePath)) {
            file = new File(filePath);
        } else {
            file = new File(new File(System.getProperty("user.dir")), filePath);
        }

        try {
            return file.getCanonicalFile();
        } catch (IOException e) {
            return file;
        }
    }
}