net.ageto.gyrex.impex.common.steps.impl.filename.FirstFilenameInAlphabeticalOrder.java Source code

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Here is the source code for net.ageto.gyrex.impex.common.steps.impl.filename.FirstFilenameInAlphabeticalOrder.java

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/*******************************************************************************
 * Copyright (c) 2010 AGETO Service GmbH and others.
 * All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html.
 *
 * Contributors:
 *     Mario Mokros - initial API and implementation
 *******************************************************************************/
package net.ageto.gyrex.impex.common.steps.impl.filename;

import java.io.File;
import java.util.ArrayList;
import java.util.Collection;

import net.ageto.gyrex.impex.common.steps.internal.ImpexStepsActivator;
import net.ageto.gyrex.impex.impl.BaseProcessStep;

import org.apache.commons.io.FileUtils;
import org.apache.commons.lang.BooleanUtils;
import org.apache.commons.lang.StringUtils;

/**
 * The Class FirstFilenameInAlphabeticalOrder.
 */
public class FirstFilenameInAlphabeticalOrder extends BaseProcessStep<FirstFilenameInAlphabeticalOrderDefinition> {

    /** The Constant ID. */
    public static final String ID = ImpexStepsActivator.SYMBOLIC_NAME + ".first.filename.in.alphabetical.order";

    /**
     * Constructor
     */
    public FirstFilenameInAlphabeticalOrder() {
        super(FirstFilenameInAlphabeticalOrderDefinition.class);
    }

    @SuppressWarnings("unchecked")
    @Override
    protected StatusStep process() {

        // file path
        String filepath = (String) getInputParam(
                FirstFilenameInAlphabeticalOrderDefinition.InputParamNames.INPUT_FILEPATH.name());

        // file extensions
        ArrayList<String> fileExtension = (ArrayList<String>) getInputParam(
                FirstFilenameInAlphabeticalOrderDefinition.InputParamNames.INPUT_FILE_EXTENSION_FILTER.name());

        String[] fileExtensionsArray = fileExtension == null ? null : (String[]) fileExtension.toArray();

        // recursive, include subdirectories
        Boolean recursive = (Boolean) getInputParam(
                FirstFilenameInAlphabeticalOrderDefinition.InputParamNames.INPUT_INCLUDE_SUBDIRECTORIES.name());

        // all files from the given file path
        Collection<File> listFiles = FileUtils.listFiles(new File(filepath), fileExtensionsArray,
                BooleanUtils.toBoolean(recursive));

        if (listFiles.size() == 0) {
            processWarn("No file was found in folder \"{0}\" with file extension \"{1}\".", filepath,
                    StringUtils.defaultIfEmpty(StringUtils.join(fileExtensionsArray, " "), "*"));
            // cancel process
            return StatusStep.CANCEL;
        }

        // fetch first file (alphabetical order)
        for (File file : listFiles) {
            setOutputParam(FirstFilenameInAlphabeticalOrderDefinition.OutputParamNames.OUTPUT_FILENAME.name(),
                    file.getAbsolutePath());
            processInfo("File \"{0}\" was found in folder \"{1}\" with file extension \"{2}\".",
                    file.getAbsolutePath(), filepath,
                    StringUtils.defaultIfEmpty(StringUtils.join(fileExtensionsArray, " "), "*"));
            break;
        }

        processInfo("{0} has been completed successfully.", ID);

        return StatusStep.OK;
    }
}