| /* |
| * 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; |
| |
| // JDK imports |
| import java.util.Properties; |
| |
| // OODT imports |
| import org.apache.oodt.cas.filemgr.structs.Product; |
| import org.apache.oodt.cas.filemgr.structs.ProductType; |
| import org.apache.oodt.cas.filemgr.structs.exceptions.VersioningException; |
| import org.apache.oodt.cas.metadata.Metadata; |
| |
| // Google imports |
| import com.google.common.base.Strings; |
| |
| /** |
| * A {@link MetadataBasedFileVersioner} which is configurable via java properties. Set the |
| * following java property to configure file_spec per product type: |
| * org.apache.oodt.cas.filemgr.versioning.configuration.<product_type_name> |
| * Or set the following java property to configure all product types: |
| * org.apache.oodt.cas.filemgr.versioning.configuration.all_product_types |
| * |
| * @author bfoster@apache.org (Brian Foster) |
| */ |
| public class ConfigurableMetadataBasedFileVersioner extends MetadataBasedFileVersioner { |
| |
| private static final String BASE_PROPERTY = |
| "org.apache.oodt.cas.filemgr.versioning.configuration."; |
| private static final String ALL = "all_product_types"; |
| |
| private final Properties properties; |
| |
| public ConfigurableMetadataBasedFileVersioner() { |
| this(System.getProperties()); |
| } |
| |
| public ConfigurableMetadataBasedFileVersioner(Properties properties) { |
| this.properties = properties; |
| } |
| |
| @Override |
| public void createDataStoreReferences(Product product, Metadata metadata) |
| throws VersioningException { |
| setFilePathSpec(getFilePathSpec(product.getProductType())); |
| super.createDataStoreReferences(product, metadata); |
| } |
| |
| private String getFilePathSpec(ProductType productType) throws VersioningException { |
| String fileSpec = properties.getProperty(BASE_PROPERTY + productType.getName().toLowerCase()); |
| if (Strings.isNullOrEmpty(fileSpec)) { |
| fileSpec = properties.getProperty(BASE_PROPERTY + ALL); |
| if (Strings.isNullOrEmpty(fileSpec)) { |
| throw new VersioningException("Not defined for product type " + productType.getName()); |
| } |
| } |
| return fileSpec; |
| } |
| } |