au.org.ala.delta.editor.directives.DirectivesFileExporter.java Source code

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Here is the source code for au.org.ala.delta.editor.directives.DirectivesFileExporter.java

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/*******************************************************************************
 * Copyright (C) 2011 Atlas of Living Australia
 * All Rights Reserved.
 * 
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (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.mozilla.org/MPL/
 * 
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 ******************************************************************************/
package au.org.ala.delta.editor.directives;

import au.org.ala.delta.editor.slotfile.Directive;
import au.org.ala.delta.editor.slotfile.DirectiveInstance;
import au.org.ala.delta.editor.slotfile.directive.DirectiveInOutState;
import au.org.ala.delta.editor.slotfile.model.DirectiveFile;
import au.org.ala.delta.util.FileUtils;
import org.apache.commons.io.FilenameUtils;

import java.io.File;
import java.util.List;

/**
 * The DirectivesFileExporter is responsible exporting the contents of a DirectivesFile to the file system.
 */
public class DirectivesFileExporter {

    /**
     * Exports the directives in the supplied DirectiveFile.
     * @param file the DirectiveFile to export.
     * @param state tracks the current directive and export location.
     */
    public void writeDirectivesFile(DirectiveFile file, DirectiveInOutState state) {
        try {
            List<DirectiveInstance> directives = file.getDirectives();

            for (int i = 0; i < directives.size(); i++) {
                writeDirective(directives.get(i), state);
                if (i != directives.size() - 1) {
                    state.getPrinter().writeBlankLines(1, 0);
                }
            }
            state.getPrinter().printBufferLine();
            file.setLastModifiedTime(System.currentTimeMillis());

        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (state.getPrinter() != null) {
                state.getPrinter().close();
            }
        }
    }

    /**
     * Creates a file in the supplied path on the file system to export the contents of the supplied
     * DirectivesFile.  If there is an existing file with the same name, it will be backed up and deleted.
     * @param file the DirectiveFile to be exported.
     * @param directoryPath the directory in which the file should be created.
     * @return a File to which the directives can be written.
     */
    public File createExportFile(DirectiveFile file, String directoryPath) {
        String fileName = file.getShortFileName();
        FileUtils.backupAndDelete(fileName, directoryPath);

        FilenameUtils.concat(directoryPath, fileName);
        File directivesFile = new File(directoryPath + fileName);

        return directivesFile;
    }

    protected void writeDirective(DirectiveInstance directive, DirectiveInOutState state) {

        state.setCurrentDirective(directive);
        Directive directiveInfo = directive.getDirective();

        directiveInfo.getOutFunc().process(state);
    }
}