com.esri.geoportal.cli.Application.java Source code

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Here is the source code for com.esri.geoportal.cli.Application.java

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/*
 * Copyright 2016 Esri, Inc.
 *
 * Licensed 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.esri.geoportal.cli;

import com.esri.geoportal.cli.boot.Bootstrap;
import com.esri.geoportal.cli.boot.MemReportManager;
import com.esri.geoportal.harvester.api.base.SimpleIteratorContext;
import com.esri.geoportal.harvester.api.defs.TaskDefinition;
import com.esri.geoportal.harvester.api.ex.DataProcessorException;
import com.esri.geoportal.harvester.api.ex.InvalidDefinitionException;
import com.esri.geoportal.harvester.api.specs.InputBroker.IteratorContext;
import com.esri.geoportal.harvester.engine.services.Engine;
import static com.esri.geoportal.harvester.engine.utils.JsonSerializer.deserialize;
import com.esri.geoportal.harvester.engine.utils.ProcessReference;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.DefaultParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.ParseException;

/**
 * Command line application.
 */
public class Application {
    private static final String DEFAULT_GEOMETRY_SERVICE = "https://utility.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryServer";
    private static final String version = "2.0.0";

    private String geometryServiceUrl = DEFAULT_GEOMETRY_SERVICE;

    public static void main(String[] args) {
        Application app = new Application();
        app.execute(args);
    }

    private void execute(String[] args) {
        CommandLineParser parser = new DefaultParser();
        Options options = createOptions();

        try {
            CommandLine cli = parser.parse(options, args);

            if (cli.getOptions().length == 0 || cli.hasOption('h') || cli.hasOption("v")) {
                if (cli.hasOption("v")) {
                    printVersion();
                } else {
                    printHeader();
                    printHelp(options);
                }
            } else {
                // See if the geometry service is configured
                if (cli.hasOption('g')) {
                    String geoUrl = cli.getOptionValue('g');
                    this.geometryServiceUrl = geoUrl;
                }

                if (cli.hasOption('f')) {
                    String fileName = cli.getOptionValue('f');
                    File file = new File(fileName);
                    try (InputStream inputStream = new FileInputStream(file)) {
                        TaskDefinition taskDefinition = deserialize(inputStream, TaskDefinition.class);
                        harvest(taskDefinition);
                    }
                } else if (cli.hasOption('t')) {
                    String sTaskDef = cli.getOptionValue('t');
                    TaskDefinition taskDefinition = deserialize(sTaskDef, TaskDefinition.class);
                    harvest(taskDefinition);
                } else {
                    printHeader();
                    printHelp(options);
                }
            }
        } catch (IOException | DataProcessorException | InvalidDefinitionException ex) {
            ex.printStackTrace(System.err);
        } catch (ParseException ex) {
            printHeader();
            printHelp(options);
        }

    }

    protected void printHeader() {
        System.out.println(String.format("Harvest ver. %s, Copyright @ 2017 Esri, Inc.", version));
    }

    protected void printVersion() {
        System.out.println(String.format("Version: %s", version));
    }

    protected void printHelp(Options options) {
        HelpFormatter help = new HelpFormatter();
        help.printHelp("java -jar harvest.jar [options] [-file <file>] | [-task <task definition>]", options);
    }

    private Options createOptions() {
        Option help = new Option("h", "help", false, "print this message");
        Option ver = new Option("v", "version", false, "print the version information and exit");
        Option verbose = new Option("V", "verbose", false, "be extra verbose");
        Option file = new Option("f", "file", true, "executes task defined in the file");
        Option task = new Option("t", "task", true, "executes task defined as JSON");
        Option geo = new Option("g", "geometry", true, "url to accessible geometry service");
        geo.setArgName("url");

        Options options = new Options();
        options.addOption(help);
        options.addOption(ver);
        options.addOption(verbose);
        options.addOption(file);
        options.addOption(task);
        options.addOption(geo);

        return options;
    }

    protected void harvest(TaskDefinition taskDefinition)
            throws DataProcessorException, InvalidDefinitionException {
        Bootstrap boot = new Bootstrap(this.geometryServiceUrl, new MemReportManager());
        Engine engine = boot.createEngine();
        IteratorContext iterCtx = new SimpleIteratorContext();

        ProcessReference processRef = engine.getExecutionService().execute(taskDefinition, iterCtx);
        processRef.getProcess().begin();
    }
}