| /* |
| * 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.pge.staging; |
| |
| //OODT static imports |
| import static org.apache.oodt.cas.pge.metadata.PgeTaskMetKeys.QUERY_FILE_MANAGER_URL; |
| |
| //JDK imports |
| import java.io.File; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.net.URL; |
| import java.util.List; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| //OODT imports |
| import org.apache.commons.lang.Validate; |
| import org.apache.oodt.cas.filemgr.structs.Product; |
| import org.apache.oodt.cas.filemgr.structs.Reference; |
| import org.apache.oodt.cas.filemgr.structs.exceptions.CatalogException; |
| import org.apache.oodt.cas.filemgr.system.XmlRpcFileManagerClient; |
| import org.apache.oodt.cas.pge.config.FileStagingInfo; |
| import org.apache.oodt.cas.pge.metadata.PgeMetadata; |
| |
| //Google imports |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.common.collect.Lists; |
| |
| /** |
| * Responsible for transferring Product files to a directory accessible by |
| * by CAS-PGE. |
| * |
| * @author bfoster (Brian Foster) |
| */ |
| public abstract class FileStager { |
| |
| public void stageFiles(FileStagingInfo fileStagingInfo, |
| PgeMetadata pgeMetadata, Logger logger) throws Exception { |
| logger.log(Level.INFO, "Creating staging directory [" |
| + fileStagingInfo.getStagingDir() + "]"); |
| new File(fileStagingInfo.getStagingDir()).mkdirs(); |
| for (String file : fileStagingInfo.getFilePaths()) { |
| File fileHandle = new File(file); |
| if (fileStagingInfo.isForceStaging() || !fileHandle.exists()) { |
| logger.log(Level.INFO, "Staging file [" + file |
| + "] to directory [" |
| + fileStagingInfo.getStagingDir() + "]"); |
| stageFile(asURI(file), new File(fileStagingInfo.getStagingDir()), |
| pgeMetadata, logger); |
| } |
| } |
| if (!fileStagingInfo.getProductIds().isEmpty()) { |
| XmlRpcFileManagerClient fmClient = createFileManagerClient(pgeMetadata); |
| for (String productId : fileStagingInfo.getProductIds()) { |
| logger.log(Level.INFO, "Staging product [" + productId |
| + "] to directory [" |
| + fileStagingInfo.getStagingDir() + "]"); |
| for (URI uri : getProductReferences(productId, fmClient)) { |
| logger.log(Level.INFO, "Staging product [" + productId |
| + "] reference [" + uri |
| + "] to directory [" |
| + fileStagingInfo.getStagingDir() + "]"); |
| stageFile(uri, new File(fileStagingInfo.getStagingDir()), |
| pgeMetadata, logger); |
| } |
| } |
| } |
| } |
| |
| @VisibleForTesting |
| static XmlRpcFileManagerClient createFileManagerClient(PgeMetadata pgeMetadata) |
| throws Exception { |
| String filemgrUrl = pgeMetadata.getMetadata(QUERY_FILE_MANAGER_URL); |
| if (filemgrUrl == null) { |
| throw new Exception("Must specify [" + QUERY_FILE_MANAGER_URL |
| + "] if you want to stage product IDs"); |
| } |
| return new XmlRpcFileManagerClient(new URL(filemgrUrl)); |
| } |
| |
| @VisibleForTesting |
| static List<URI> getProductReferences( |
| String productId, XmlRpcFileManagerClient fmClient) |
| throws URISyntaxException, CatalogException { |
| List<URI> files = Lists.newArrayList(); |
| Product product = new Product(); |
| product.setProductId(productId); |
| List<Reference> refs = fmClient.getProductReferences(product); |
| for (Reference ref : refs) { |
| files.add(new URI(ref.getDataStoreReference())); |
| } |
| return files; |
| } |
| |
| @VisibleForTesting |
| static URI asURI(String path) throws URISyntaxException { |
| Validate.notNull(path, "path must not be null"); |
| |
| URI uri = URI.create(path); |
| if (uri.getScheme() == null) { |
| uri = URI.create("file://" + new File(path).getAbsolutePath()); |
| } |
| return uri; |
| } |
| |
| protected abstract void stageFile(URI stageFile, File destDir, |
| PgeMetadata pgeMetadata, Logger logger) throws Exception; |
| } |