/**
 * Licensed to jclouds, Inc. (jclouds) under one or more
 * contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  jclouds 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.jclouds.s3;

import static org.jclouds.Constants.PROPERTY_API_VERSION;
import static org.jclouds.Constants.PROPERTY_RELAX_HOSTNAME;
import static org.jclouds.aws.reference.AWSConstants.PROPERTY_AUTH_TAG;
import static org.jclouds.aws.reference.AWSConstants.PROPERTY_HEADER_TAG;
import static org.jclouds.blobstore.reference.BlobStoreConstants.DIRECTORY_SUFFIX_FOLDER;
import static org.jclouds.blobstore.reference.BlobStoreConstants.PROPERTY_BLOBSTORE_DIRECTORY_SUFFIX;
import static org.jclouds.blobstore.reference.BlobStoreConstants.PROPERTY_USER_METADATA_PREFIX;
import static org.jclouds.s3.reference.S3Constants.PROPERTY_S3_SERVICE_PATH;
import static org.jclouds.s3.reference.S3Constants.PROPERTY_S3_VIRTUAL_HOST_BUCKETS;

import java.util.Properties;

import org.jclouds.PropertiesBuilder;
import org.jclouds.s3.reference.S3Headers;

/**
 * Builds properties used in S3 Connections
 * 
 * @author Adrian Cole
 */
public class S3PropertiesBuilder extends PropertiesBuilder {
   @Override
   protected Properties defaultProperties() {
      Properties properties = super.defaultProperties();
      properties.setProperty(PROPERTY_API_VERSION, S3AsyncClient.VERSION);
      properties.setProperty(PROPERTY_AUTH_TAG, "AWS");
      properties.setProperty(PROPERTY_HEADER_TAG, S3Headers.DEFAULT_AMAZON_HEADERTAG);
      properties.setProperty(PROPERTY_S3_SERVICE_PATH, "/");
      properties.setProperty(PROPERTY_S3_VIRTUAL_HOST_BUCKETS, "true");
      properties.setProperty(PROPERTY_RELAX_HOSTNAME, "true");
      properties.setProperty(PROPERTY_BLOBSTORE_DIRECTORY_SUFFIX, DIRECTORY_SUFFIX_FOLDER);
      return properties;
   }

   public S3PropertiesBuilder(Properties properties) {
      super(properties);
   }

   public S3PropertiesBuilder() {
      super();
   }

   protected S3PropertiesBuilder withMetaPrefix(String prefix) {
      properties.setProperty(PROPERTY_USER_METADATA_PREFIX, prefix);
      return this;
   }

   protected void setMetaPrefix() {
      if (properties.getProperty(PROPERTY_USER_METADATA_PREFIX) == null) {
         properties.setProperty(PROPERTY_USER_METADATA_PREFIX, String.format("x-%s-meta-", properties
                  .getProperty(PROPERTY_HEADER_TAG)));
      }
   }

   @Override
   public Properties build() {
      setMetaPrefix();
      return super.build();
   }
}
