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import org.gvsig.fmap.dal.DataStoreParameters;
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import org.gvsig.fmap.dal.coverage.RasterLocator;
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import org.gvsig.fmap.dal.coverage.store.parameter.RasterFileStoreParameters;
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import org.gvsig.i18n.Messages;
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import org.gvsig.raster.swing.RasterSwingLibrary;
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import org.kxml2.io.KXmlParser;
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import org.xmlpull.v1.XmlPullParser;
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public class PrepareDataStoreParametersRaw implements
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PrepareDataStoreParameters {
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/* (non-Javadoc)
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* @see org.gvsig.PrepareDataStoreParameters#prepare(org.gvsig.fmap.dal.DataStoreParameters, org.gvsig.PrepareDataStoreContext)
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*/
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public DataStoreParameters prepare(DataStoreParameters storeParamters,
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PrepareContext context) {
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if (!(storeParamters instanceof RasterFileStoreParameters))
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return storeParamters;
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RasterFileStoreParameters rasterParams = (RasterFileStoreParameters) storeParamters;
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File file = rasterParams.getFile();
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if (RasterLocator.getManager().getFileUtils().getExtensionFromFileName(file.getAbsolutePath())
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.equals("vrt"))
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if (file == null)
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return null;
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if (RasterLocator.getManager().getFileUtils().getExtensionFromFileName(file.getAbsolutePath()).equals("vrt")) {
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try {
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checkFileVRT(file);
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} catch (FileOpenVRTException e) {
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RasterSwingLibrary.messageBoxError(PluginServices.getText(this, "error_abrir_fichero") + " " + file.getName() + "\n\n" + PluginServices.getText(this, "informacion_adicional") + ":\n\n " + e.getMessage(), this, e);
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return null;
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}
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}
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if (file == null)
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return null;
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rasterParams.setFile(file);
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return rasterParams;
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}
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*/
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private void checkFileVRT(File file) throws FileOpenVRTException {
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KXmlParser parser = new KXmlParser();
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boolean end = false;
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int currentTag;
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FileReader fileReader = null;
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try {
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fileReader = new FileReader(file);
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parser.setInput(fileReader);
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parser.nextTag();
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currentTag = parser.nextTag();
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parser.require(XmlPullParser.START_TAG, null, "VRTDataset");
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while (parser.nextTag() != XmlPullParser.END_TAG) {
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parser.require(XmlPullParser.START_TAG, null, "VRTRasterBand");
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String name;
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while (parser.nextTag() != XmlPullParser.END_TAG) {
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parser.require(XmlPullParser.START_TAG, null, null);
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boolean relativePath = false;
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for (int i = 0; i < parser.getAttributeCount(); i++)
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if (parser.getAttributeName(i).equals("relativetoVRT")
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&& parser.getAttributeValue(i).equals("1"))
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relativePath = true;
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name = parser.getName();
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String nameFile = parser.nextText();
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if (name.equals("SourceFilename")) {
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if (relativePath)
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nameFile = file.getParent() + File.separator
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+ nameFile;
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File tryFile = new File(nameFile);
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if (!tryFile.exists())
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throw new FileOpenVRTException(PluginServices
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.getText(this, "no_existe_fichero")
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+ " " + nameFile);
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}
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parser.require(XmlPullParser.END_TAG, null, name);
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while (!end) {
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switch(currentTag) {
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case KXmlParser.START_TAG:
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if (compareName(parser, "VRTRasterBand")) {
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checkSubTreeVRTRasterBand(parser, file);
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}
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break;
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case KXmlParser.END_TAG:
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if (compareName(parser, "VRTRasterBand"))
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
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}
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if (!end)
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currentTag = parser.next();
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}
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parser.require(XmlPullParser.END_TAG, null, "VRTRasterBand");
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}
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parser.require(XmlPullParser.END_TAG, null, "VRTDataset");
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parser.next();
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parser.require(XmlPullParser.END_DOCUMENT, null, null);
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} catch (XmlPullParserException e) {
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throw new FileOpenVRTException(PluginServices.getText(this,
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"el_fichero")
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+ " "
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+ file.getName().toString()
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+ " "
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+ PluginServices.getText(this, "esta_formato_desconocido"));
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+ Messages.getText("esta_formato_desconocido"));
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} catch (IOException e) {
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throw new FileOpenVRTException(PluginServices.getText(this,
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"no_puede_abrir_fichero")
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}
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}
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}
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private void checkSubTreeVRTRasterBand(KXmlParser parser, File file) throws XmlPullParserException, IOException, FileOpenVRTException {
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int currentTag;
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boolean end = false;
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currentTag = parser.nextTag();
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while (!end) {
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switch(currentTag) {
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case KXmlParser.START_TAG:
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if (compareName(parser, "SourceFilename")) {
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checkTagSourceFileName(parser, file);
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end = true;
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} else if(compareName(parser, "SimpleSource") ||
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compareName(parser, "ComplexSource") ||
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compareName(parser, "AveragedSource")) {
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checkSubTreeSource(parser, file);
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}
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break;
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case KXmlParser.END_TAG:
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if (compareName(parser, "SourceFilename") ||
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compareName(parser, "SimpleSource") ||
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compareName(parser, "ComplexSource") ||
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compareName(parser, "AveragedSource"))
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
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}
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if (!end)
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currentTag = parser.next();
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}
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}
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private void checkSubTreeSource(KXmlParser parser, File file) throws XmlPullParserException, IOException, FileOpenVRTException {
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int currentTag;
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boolean end = false;
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currentTag = parser.nextTag();
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while (!end) {
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switch(currentTag) {
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case KXmlParser.START_TAG:
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if (compareName(parser, "SourceFilename")) {
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checkTagSourceFileName(parser, file);
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}
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case KXmlParser.END_TAG:
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if (compareName(parser, "SourceFilename"))
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
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}
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if (!end)
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currentTag = parser.next();
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}
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}
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private void checkTagSourceFileName(KXmlParser parser, File file) throws XmlPullParserException, IOException, FileOpenVRTException {
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for (int i = 0; i < parser.getAttributeCount(); i++) {
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if (parser.getAttributeName(i).equals("relativetoVRT") &&
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parser.getAttributeValue(i).equals("1")) {
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String nameFile = parser.nextText();
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nameFile = file.getParent() + File.separator + nameFile;
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File tryFile = new File(nameFile);
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if (!tryFile.exists())
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throw new FileOpenVRTException(Messages.getText("no_existe_fichero") + " " + nameFile);
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}
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}
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}
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/**
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* Compares the next name in the selected parser with the string passed
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* by value.
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* @param parser
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* @param name
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* @return
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*/
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public boolean compareName(KXmlParser parser, String name) {
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String s = parser.getName();
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if(s.compareTo(name) == 0 || s.compareTo("ows:" + name) == 0)
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return true;
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return false;
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}
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public String getDescription() {
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return "Prepare Raster Raw Stores";
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}
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return this;
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}
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@SuppressWarnings("rawtypes")
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public Object create(Map args) {
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return this;
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}
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public void post(DataStoreParameters storeParameters, PrepareContext context) {
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// TODO Auto-generated method stub
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}
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public void pre(DataStoreParameters storeParameters, PrepareContext context) {
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// TODO Auto-generated method stub
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}
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}
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