org.jclouds.s3.binders.BindACLToXMLPayload Maven / Gradle / Ivy

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/*
 * 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.jclouds.s3.binders;

import static org.jclouds.s3.binders.BindBucketLoggingToXmlPayload.addGrants;
import static org.jclouds.s3.binders.XMLHelper.asString;
import static org.jclouds.s3.binders.XMLHelper.createDocument;
import static org.jclouds.s3.binders.XMLHelper.elem;
import static org.jclouds.s3.binders.XMLHelper.elemWithText;

import javax.inject.Singleton;
import javax.ws.rs.core.MediaType;
import javax.xml.parsers.FactoryConfigurationError;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;

import org.jclouds.http.HttpRequest;
import org.jclouds.rest.Binder;
import org.jclouds.s3.domain.AccessControlList;
import org.jclouds.s3.reference.S3Constants;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

import shaded.com.google.common.base.Throwables;

@Singleton
public class BindACLToXMLPayload implements Binder {
   @Override
   public  R bindToRequest(R request, Object payload) {
      AccessControlList from = (AccessControlList) payload;
      try {
         request.setPayload(generatePayload(from));
         request.getPayload().getContentMetadata().setContentType(MediaType.TEXT_XML);
         return request;
      } catch (Exception e) {
         Throwables.propagateIfPossible(e);
         throw new RuntimeException("error transforming acl: " + from, e);
      }
   }

   protected String generatePayload(AccessControlList acl)
         throws ParserConfigurationException, FactoryConfigurationError, TransformerException {
      Document document = createDocument();
      Element rootNode = elem(document, "AccessControlPolicy", document);
      rootNode.setAttribute("xmlns", S3Constants.S3_REST_API_XML_NAMESPACE);
      if (acl.getOwner() != null) {
         Element ownerNode = elem(rootNode, "Owner", document);
         elemWithText(ownerNode, "ID", acl.getOwner().getId(), document);
         String displayName = acl.getOwner().getDisplayName();
         if (displayName != null) {
            elemWithText(ownerNode, "DisplayName", displayName, document);
         }
      }
      addGrants(elem(rootNode, "AccessControlList", document),
                acl.getGrants(),
                document);
      return asString(document);
   }
}