/**
* 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.azureblob.binders;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import javax.inject.Inject;
import javax.inject.Singleton;
import javax.ws.rs.core.HttpHeaders;
import org.jclouds.azureblob.blobstore.functions.AzureBlobToBlob;
import org.jclouds.azureblob.domain.AzureBlob;
import org.jclouds.blobstore.binders.BindUserMetadataToHeadersWithPrefix;
import org.jclouds.http.HttpRequest;
import org.jclouds.rest.Binder;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableMap.Builder;
import com.google.common.collect.Multimaps;
@Singleton
public class BindAzureBlobMetadataToRequest implements Binder {
private final AzureBlobToBlob azureBlob2Blob;
private final BindUserMetadataToHeadersWithPrefix blobBinder;
@Inject
public BindAzureBlobMetadataToRequest(AzureBlobToBlob azureBlob2Blob, BindUserMetadataToHeadersWithPrefix blobBinder) {
this.azureBlob2Blob = checkNotNull(azureBlob2Blob, "azureBlob2Blob");
this.blobBinder = checkNotNull(blobBinder, "blobBinder");
}
@SuppressWarnings("unchecked")
@Override
public <R extends HttpRequest> R bindToRequest(R request, Object input) {
checkArgument(checkNotNull(input, "input") instanceof AzureBlob, "this binder is only valid for AzureBlobs!");
checkNotNull(request, "request");
AzureBlob blob = AzureBlob.class.cast(input);
checkArgument(blob.getPayload().getContentMetadata().getContentLength() != null
&& blob.getPayload().getContentMetadata().getContentLength() >= 0, "size must be set");
Builder<String, String> headers = ImmutableMap.builder();
headers.put("x-ms-blob-type", blob.getProperties().getType().toString());
switch (blob.getProperties().getType()) {
case PAGE_BLOB:
headers.put(HttpHeaders.CONTENT_LENGTH, "0");
headers.put("x-ms-blob-content-length", blob.getPayload().getContentMetadata().getContentLength().toString());
break;
case BLOCK_BLOB:
checkArgument(
checkNotNull(blob.getPayload().getContentMetadata().getContentLength(), "blob.getContentLength()") <= 64l * 1024 * 1024,
"maximum size for put Blob is 64MB");
break;
}
request = (R) request.toBuilder().replaceHeaders(Multimaps.forMap(headers.build())).build();
return blobBinder.bindToRequest(request, azureBlob2Blob.apply(blob));
}
}