net.sf.wickedshell.domain.batch.BatchFileDescriptorDao.java Source code

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Here is the source code for net.sf.wickedshell.domain.batch.BatchFileDescriptorDao.java

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/*
 * ShellStyleDao.java
 * 
 * Copyright 2005-2006 Stefan Reichert.
 * All Rights Reserved.
 * 
 * This software is the proprietary information of Stefan Reichert.
 * Use is subject to license terms.
 * 
 */
package net.sf.wickedshell.domain.batch;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import net.sf.wickedshell.domain.DomainID;
import net.sf.wickedshell.domain.DomainPlugin;

import org.apache.commons.collections.Closure;
import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.collections.Transformer;
import org.apache.xmlbeans.XmlException;

/**
 * @author Stefan Reichert
 * @since 22.10.2006
 */
public class BatchFileDescriptorDao {

    /**
     * Returns the <code>List</code> of <code>IBatchFileDescriptor</code> stored in the
     * <i>StateLocation</i>. First checks whether the corresponding XML-File exists. If not an empty
     * one is created.
     * 
     * @return the <code>List</code> of <code>IBatchFileDescriptor</code>
     * @throws IOException
     *         if creating/parsing the file fails
     */
    @SuppressWarnings("unchecked")
    public List<IBatchFileDescriptor> readBatchFileDescriptors() throws IOException, XmlException {
        BatchFileDescriptorListDocument batchFileDescriptorListDocument;
        String stateLocation = DomainPlugin.getDefault().getStateLocation().toOSString();
        File batchFileDescriptorListDocumentFile = new File(stateLocation, DomainID.BATCH_FILES_FILE);
        if (!batchFileDescriptorListDocumentFile.exists()) {
            batchFileDescriptorListDocument = BatchFileDescriptorListDocument.Factory.newInstance();
            batchFileDescriptorListDocument.addNewBatchFileDescriptorList();
            batchFileDescriptorListDocument.save(batchFileDescriptorListDocumentFile);
        } else {
            batchFileDescriptorListDocument = BatchFileDescriptorListDocument.Factory
                    .parse(batchFileDescriptorListDocumentFile);
        }
        return (List<IBatchFileDescriptor>) CollectionUtils.collect(
                Arrays.asList(
                        batchFileDescriptorListDocument.getBatchFileDescriptorList().getBatchFileDescriptorArray()),
                new Transformer() {
                    /**
                     * @see org.apache.commons.collections.Transformer#transform(java.lang.Object)
                     */
                    public Object transform(Object object) {
                        return IBatchFileDescriptor.Factory.newInstance((BatchFileDescriptor) object);
                    }
                }, new ArrayList());
    }

    /**
     * Persist the <code>List</code> of <code>IBatchFileDescriptor</code>.
     * 
     * @param completions
     *        the <code>List</code> of <code>IBatchFileDescriptor</code>
     */
    public void writeBatchFileDescriptors(List<IBatchFileDescriptor> batchFileDescriptors) throws IOException {
        String stateLocation = DomainPlugin.getDefault().getStateLocation().toOSString();
        File batchFileDescriptorListDocumentFile = new File(stateLocation, DomainID.BATCH_FILES_FILE);
        if (!batchFileDescriptorListDocumentFile.exists()) {
            batchFileDescriptorListDocumentFile.delete();
        }
        final BatchFileDescriptorListDocument batchFileDescriptorListDocument = BatchFileDescriptorListDocument.Factory
                .newInstance();
        batchFileDescriptorListDocument.addNewBatchFileDescriptorList();
        CollectionUtils.forAllDo(batchFileDescriptors, new Closure() {
            /**
             * @see org.apache.commons.collections.Closure#execute(java.lang.Object)
             */
            public void execute(Object object) {
                IBatchFileDescriptor batchFileDescriptor = (IBatchFileDescriptor) object;
                BatchFileDescriptorList batchFileDescriptorList = batchFileDescriptorListDocument
                        .getBatchFileDescriptorList();
                BatchFileDescriptor staticBatchFileDescriptor = batchFileDescriptorList.addNewBatchFileDescriptor();
                staticBatchFileDescriptor.setFilename(batchFileDescriptor.getFilename());
                staticBatchFileDescriptor.setParameters(batchFileDescriptor.getParameters());
            }
        });
        batchFileDescriptorListDocument.save(batchFileDescriptorListDocumentFile);
    }
}