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| * regarding copyright ownership. The ASF licenses this file * |
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| * "License"); you may not use this file except in compliance * |
| * with the License. You may obtain a copy of the License at * |
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| * http://www.apache.org/licenses/LICENSE-2.0 * |
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| * Unless required by applicable law or agreed to in writing, * |
| * software distributed under the License is distributed on an * |
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| * specific language governing permissions and limitations * |
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| ****************************************************************/ |
| |
| package org.apache.james.modules.objectstorage; |
| |
| import java.io.FileNotFoundException; |
| import java.util.function.Function; |
| |
| import javax.inject.Inject; |
| import javax.inject.Provider; |
| |
| import org.apache.commons.configuration.Configuration; |
| import org.apache.commons.configuration.ConfigurationException; |
| import org.apache.james.blob.api.BlobId; |
| import org.apache.james.blob.objectstorage.ContainerName; |
| import org.apache.james.blob.objectstorage.ObjectStorageBlobsDAO; |
| import org.apache.james.blob.objectstorage.swift.SwiftKeystone2ObjectStorage; |
| import org.apache.james.blob.objectstorage.swift.SwiftKeystone3ObjectStorage; |
| import org.apache.james.blob.objectstorage.swift.SwiftTempAuthObjectStorage; |
| import org.apache.james.utils.PropertiesProvider; |
| |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableMap; |
| |
| public class ObjectStorageBlobsDAOProvider implements Provider<ObjectStorageBlobsDAO> { |
| static final String OBJECTSTORAGE_CONFIGURATION_NAME = "objectstorage"; |
| |
| static final String OBJECTSTORAGE_NAMESPACE = "objectstorage.namespace"; |
| static final String OBJECTSTORAGE_PROVIDER = "objectstorage.provider"; |
| static final String OBJECTSTORAGE_SWIFT_AUTH_API = "objectstorage.swift.authapi"; |
| |
| public static final String OBJECTSTORAGE_PROVIDER_SWIFT = "swift"; |
| |
| private final Configuration configuration; |
| private final BlobId.Factory blobIdFactory; |
| private final ImmutableMap<String, Function<ContainerName, ObjectStorageBlobsDAO>> providersByName; |
| private final ImmutableMap<String, Function<ContainerName, ObjectStorageBlobsDAO>> swiftAuthApiByName; |
| |
| @Inject |
| public ObjectStorageBlobsDAOProvider(PropertiesProvider propertiesProvider, |
| BlobId.Factory blobIdFactory) throws ConfigurationException { |
| providersByName = ImmutableMap.<String, Function<ContainerName, ObjectStorageBlobsDAO>>builder() |
| .put(OBJECTSTORAGE_PROVIDER_SWIFT, this::getSwiftObjectStorageBlobsDao) |
| .build(); |
| swiftAuthApiByName = ImmutableMap.<String, Function<ContainerName, ObjectStorageBlobsDAO>>builder() |
| .put(SwiftTempAuthObjectStorage.AUTH_API_NAME, this::getTempAuthBlobsDao) |
| .put(SwiftKeystone2ObjectStorage.AUTH_API_NAME, this::getKeystone2BlobsDao) |
| .put(SwiftKeystone3ObjectStorage.AUTH_API_NAME, this::getKeystone3Configuration) |
| .build(); |
| |
| this.blobIdFactory = blobIdFactory; |
| try { |
| this.configuration = propertiesProvider.getConfiguration(OBJECTSTORAGE_CONFIGURATION_NAME); |
| } catch (FileNotFoundException e) { |
| throw new ConfigurationException(OBJECTSTORAGE_CONFIGURATION_NAME + " configuration " + |
| "was not found"); |
| } |
| } |
| |
| @Override |
| public ObjectStorageBlobsDAO get() { |
| String provider = configuration.getString(OBJECTSTORAGE_PROVIDER, null); |
| String namespace = configuration.getString(OBJECTSTORAGE_NAMESPACE, null); |
| Preconditions.checkArgument(provider != null, |
| "Mandatory configuration value " + OBJECTSTORAGE_PROVIDER + " is missing from " + OBJECTSTORAGE_CONFIGURATION_NAME + " configuration"); |
| Preconditions.checkArgument(namespace != null, |
| "Mandatory configuration value " + OBJECTSTORAGE_NAMESPACE + " is missing from " + OBJECTSTORAGE_CONFIGURATION_NAME + " configuration"); |
| |
| return providersByName.get(provider).apply(ContainerName.of(namespace)); |
| } |
| |
| private ObjectStorageBlobsDAO getSwiftObjectStorageBlobsDao(ContainerName containerName) { |
| String authApi = configuration.getString(OBJECTSTORAGE_SWIFT_AUTH_API, null); |
| Preconditions.checkArgument(authApi != null, |
| "Mandatory configuration value " + OBJECTSTORAGE_PROVIDER + " is missing from " + OBJECTSTORAGE_CONFIGURATION_NAME + " configuration"); |
| return swiftAuthApiByName.get(authApi).apply(containerName); |
| } |
| |
| private ObjectStorageBlobsDAO getTempAuthBlobsDao(ContainerName containerName) { |
| return ObjectStorageBlobsDAO.builder(SwiftTmpAuthConfigurationReader.readSwiftConfiguration(configuration)) |
| .blobIdFactory(blobIdFactory) |
| .container(containerName) |
| .build(); |
| |
| } |
| |
| private ObjectStorageBlobsDAO getKeystone2BlobsDao(ContainerName containerName) { |
| return ObjectStorageBlobsDAO.builder(SwiftKeystone2ConfigurationReader.readSwiftConfiguration(configuration)) |
| .blobIdFactory(blobIdFactory) |
| .container(containerName) |
| .build(); |
| } |
| |
| private ObjectStorageBlobsDAO getKeystone3Configuration(ContainerName containerName) { |
| return ObjectStorageBlobsDAO.builder(SwiftKeystone3ConfigurationReader.readSwiftConfiguration(configuration)) |
| .blobIdFactory(blobIdFactory) |
| .container(containerName) |
| .build(); |
| } |
| } |