| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.oodt.cas.filemgr.versioning; |
| |
| //OODT imports |
| import org.apache.oodt.cas.filemgr.structs.exceptions.VersioningException; |
| import org.apache.oodt.cas.filemgr.structs.Product; |
| import org.apache.oodt.cas.filemgr.structs.Reference; |
| import org.apache.oodt.cas.metadata.Metadata; |
| import org.apache.oodt.commons.util.DateConvert; |
| |
| //JDK imports |
| import java.text.SimpleDateFormat; |
| import java.text.ParseException; |
| import java.util.Iterator; |
| import java.util.Date; |
| import java.util.List; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| import java.io.File; |
| import java.io.UnsupportedEncodingException; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.net.MalformedURLException; |
| import java.net.URLEncoder; |
| |
| /** |
| * @author mattmann |
| * @author bfoster |
| * @version $Revision$ |
| * |
| * <p> |
| * A simple versioning scheme that versions {@link Product}s with their |
| * production date time. |
| * </p> |
| * |
| */ |
| public class DateTimeVersioner implements Versioner { |
| |
| /* our log stream */ |
| private static final Logger LOG = Logger.getLogger(DateTimeVersioner.class.getName()); |
| |
| /** |
| * <p> |
| * Default Constructor |
| * </p> |
| */ |
| public DateTimeVersioner() { |
| super(); |
| // TODO Auto-generated constructor stub |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.apache.oodt.cas.versioning.Versioner#createDataStoreReferences(org.apache. |
| * oodt.cas.data.structs.Product) |
| */ |
| public void createDataStoreReferences(Product product, Metadata metadata) |
| throws VersioningException { |
| // first, we need to know if its heirarchical, or flat |
| if (product.getProductStructure() == null) { |
| LOG |
| .log(Level.WARNING, |
| "DateTimeVersioner: Product Structure must be defined in order to version!"); |
| return; |
| } |
| |
| SimpleDateFormat dateFormatter = new SimpleDateFormat("yyyyddMM.HHmmss"); |
| String productionDateTime = metadata |
| .getMetadata("CAS.ProductReceivedTime"); |
| if (productionDateTime == null) { // generate it ourselves then |
| productionDateTime = dateFormatter.format(new Date()); |
| } else { |
| Date prodDateTime = null; |
| try { |
| prodDateTime = DateConvert.isoParse(productionDateTime); |
| } catch (ParseException e) { |
| LOG.log(Level.WARNING, |
| "Unable to parse production date time CAS.ProductReceivedTime: " |
| + productionDateTime |
| + ": generating it ourselves"); |
| prodDateTime = new Date(); |
| } |
| productionDateTime = dateFormatter.format(prodDateTime); |
| } |
| |
| if (product.getProductStructure().equals(Product.STRUCTURE_FLAT)) { |
| // if its flat, just return references that include |
| // productTypeRepo/productName/fileName.productionDateTime |
| // we'll use the format: yyyy.dd.MM.HH.mm.ss |
| |
| for (Iterator<Reference> i = product.getProductReferences().iterator(); i |
| .hasNext();) { |
| Reference r = i.next(); |
| String dataStoreRef = null; |
| |
| try { |
| dataStoreRef = new File(new URI(product.getProductType() |
| .getProductRepositoryPath())).toURL() |
| .toExternalForm() |
| + "/" |
| + product.getProductName() |
| + "/" |
| + new File(new URI(r.getOrigReference())).getName() |
| + "." + productionDateTime; |
| LOG.log(Level.FINER, |
| "DateTimeVersioner: Generated dataStoreRef: " |
| + dataStoreRef + " from original ref: " |
| + r.getOrigReference()); |
| r.setDataStoreReference(dataStoreRef); |
| } catch (URISyntaxException e) { |
| LOG |
| .log( |
| Level.WARNING, |
| "DateTimeVersioner: Error generating URI to get name " |
| + "of original ref while generating data store ref for orig ref: " |
| + r.getOrigReference() |
| + ": Message: " + e.getMessage()); |
| // try and keep generating |
| } catch (MalformedURLException e) { |
| LOG.log(Level.WARNING, |
| "DateTimeVersioner: Error getting URL for product repository path " |
| + product.getProductType() |
| .getProductRepositoryPath() |
| + ": Message: " + e.getMessage()); |
| // try and keep generating |
| } |
| |
| } |
| } else if (product.getProductStructure().equals(Product.STRUCTURE_STREAM)) { |
| VersioningUtils.createBasicDataStoreRefsStream(product.getProductName(), product.getProductType().getProductRepositoryPath(), |
| product.getProductReferences(), productionDateTime); |
| } else if (product.getProductStructure().equals( |
| Product.STRUCTURE_HIERARCHICAL)) { |
| // if its heirarchical, then we'll version the files within the |
| // directory |
| // first, we need to get a list of all the references from the |
| // original dir |
| Reference origDirRef = (Reference) product.getProductReferences() |
| .get(0); |
| |
| try { |
| String dataStoreRef = new File(new URI(product.getProductType() |
| .getProductRepositoryPath())).toURL().toExternalForm() |
| + URLEncoder.encode(product.getProductName(), "UTF-8") |
| + "/"; |
| LOG.log(Level.INFO, |
| "DateTimeVersioner: generated DataStore ref: " |
| + dataStoreRef + " from origDirRef: " |
| + origDirRef.getOrigReference()); |
| origDirRef.setDataStoreReference(dataStoreRef); |
| } catch (MalformedURLException e) { |
| LOG.log(Level.WARNING, |
| "DateTimeVersioner: MalformedURLException while generating " |
| + "initial data store ref for origRef: " |
| + origDirRef.getOrigReference()); |
| throw new VersioningException(e); |
| } catch (URISyntaxException e) { |
| LOG.log(Level.WARNING, |
| "DateTimeVersioner: Error creating File reference from original dir URI: " |
| + origDirRef.getOrigReference() + ": Message: " |
| + e.getMessage()); |
| throw new VersioningException( |
| "Unable to generate references from original dir reference for product: " |
| + product.getProductName() + ": Message: " |
| + e.getMessage()); |
| } catch (UnsupportedEncodingException e) { |
| LOG.log(Level.WARNING, |
| "DateTimeVersioner: UnsupportedEncodingException while generating " |
| + "initial data store ref for origRef: " |
| + origDirRef.getOrigReference()); |
| throw new VersioningException(e); |
| } |
| |
| // create the basic data store refs |
| VersioningUtils.createBasicDataStoreRefsHierarchical(product |
| .getProductReferences()); |
| |
| // add the production date time |
| addProductDateTimeToReferences(product.getProductReferences(), |
| productionDateTime); |
| |
| } |
| } |
| |
| private void addProductDateTimeToReferences(List<Reference> references, |
| String productionDateTime) { |
| for (Iterator<Reference> i = references.iterator(); i.hasNext();) { |
| Reference r = i.next(); |
| if (!r.getOrigReference().endsWith("/")) { |
| r.setDataStoreReference(r.getDataStoreReference() + "." |
| + productionDateTime); |
| } |
| } |
| } |
| |
| } |