Merge branch 'large-blob' of https://github.com/tiborkiss/jclouds into tiborkiss-large-blob

* 'large-blob' of https://github.com/tiborkiss/jclouds:
  AWS S3 sequential multipart upload strategy, newly added files.
  AWS S3 sequential Multipart Upload strategy

apis/atmos/src/main/java/org/jclouds/atmos/blobstore/AtmosBlobStore.java

@@ -207,6 +207,16 @@ public class AtmosBlobStore extends BaseBlobStore {
       return AtmosUtils.putBlob(sync, crypto, blob2Object, container, blob);
    }
 
+   /**
+    * This implementation invokes {@link AtmosClient#createFile}
+    * <p/>
+    * Since there is no etag support in atmos, we just return the path.
+    */
+   @Override
+   public String putBlobMultipart(String container, Blob blob) {
+      return putBlob(container, blob);
+   }
+
    /**
     * This implementation invokes {@link AtmosClient#deletePath}
     */

apis/s3/src/main/java/org/jclouds/s3/blobstore/S3AsyncBlobStore.java

@@ -83,7 +83,7 @@ public class S3AsyncBlobStore extends BaseAsyncBlobStore {
    private final Provider<FetchBlobMetadata> fetchBlobMetadataProvider;
 
    @Inject
-   S3AsyncBlobStore(BlobStoreContext context, BlobUtils blobUtils,
+   protected S3AsyncBlobStore(BlobStoreContext context, BlobUtils blobUtils,
             @Named(Constants.PROPERTY_USER_THREADS) ExecutorService service, Supplier<Location> defaultLocation,
             @Memoized Supplier<Set<? extends Location>> locations, S3AsyncClient async, S3Client sync,
             BucketToResourceMetadata bucket2ResourceMd, ContainerToBucketListOptions container2BucketListOptions,

apis/s3/src/main/java/org/jclouds/s3/blobstore/S3BlobStore.java

@@ -74,7 +74,7 @@ public class S3BlobStore extends BaseBlobStore {
    private final Provider<FetchBlobMetadata> fetchBlobMetadataProvider;
 
    @Inject
-   S3BlobStore(BlobStoreContext context, BlobUtils blobUtils, Supplier<Location> defaultLocation,
+   protected S3BlobStore(BlobStoreContext context, BlobUtils blobUtils, Supplier<Location> defaultLocation,
             @Memoized Supplier<Set<? extends Location>> locations, S3Client sync,
             BucketToResourceMetadata bucket2ResourceMd, ContainerToBucketListOptions container2BucketListOptions,
             BucketToResourceList bucket2ResourceList, ObjectToBlob object2Blob,
@@ -225,6 +225,19 @@ public class S3BlobStore extends BaseBlobStore {
       return sync.putObject(container, blob2Object.apply(blob));
    }
 
+   /**
+    * This implementation invokes {@link S3Client#putObject}
+    * 
+    * @param container
+    *           bucket name
+    * @param blob
+    *           object
+    */
+   @Override
+   public String putBlobMultipart(String container, Blob blob) {
+      return sync.putObject(container, blob2Object.apply(blob));
+   }
+
    /**
     * This implementation invokes {@link S3Client#deleteObject}
     * 

apis/swift/src/main/java/org/jclouds/openstack/swift/blobstore/SwiftBlobStore.java

@@ -195,6 +195,19 @@ public class SwiftBlobStore extends BaseBlobStore {
       return sync.putObject(container, blob2Object.apply(blob));
    }
 
+   /**
+    * This implementation invokes {@link CommonSwiftClient#putObject}
+    * 
+    * @param container
+    *           container name
+    * @param blob
+    *           object
+    */
+   @Override
+   public String putBlobMultipart(String container, Blob blob) {
+      return putBlob(container, blob);
+   }
+
    /**
     * This implementation invokes {@link CommonSwiftClient#removeObject}
     * 

blobstore/src/main/java/org/jclouds/blobstore/BlobStore.java

@@ -200,6 +200,22 @@ public interface BlobStore {
     */
    String putBlob(String container, Blob blob);
    
+   /**
+    * Adds a {@code Blob} representing the data at location {@code container/blob.metadata.name}
+    * using multipart strategies.
+    * 
+    * @param container
+    *           container to place the blob.
+    * @param blob
+    *           fully qualified name relative to the container.
+    * @param options
+    *           byte range or condition options
+    * @return etag of the blob you uploaded, possibly null where etags are unsupported
+    * @throws ContainerNotFoundException
+    *            if the container doesn't exist
+    */
+   String putBlobMultipart(String container, Blob blob);
+
    /**
     * Retrieves the metadata of a {@code Blob} at location {@code container/name}
     * 

core/pom.xml

@@ -119,6 +119,11 @@
             <artifactId>jsr305</artifactId>
             <version>1.3.9</version>
         </dependency>
+        <dependency>
+        	<groupId>org.jboss.netty</groupId>
+        	<artifactId>netty</artifactId>
+        	<version>3.2.4.Final</version>
+        </dependency>
     </dependencies>
 
     <profiles>

core/src/main/java/org/jclouds/io/Payloads.java

@@ -35,6 +35,7 @@ import javax.annotation.Nullable;
 
 import org.jclouds.crypto.CryptoStreams;
 import org.jclouds.io.payloads.ByteArrayPayload;
+import org.jclouds.io.payloads.ChunkedFilePayload;
 import org.jclouds.io.payloads.FilePayload;
 import org.jclouds.io.payloads.InputStreamPayload;
 import org.jclouds.io.payloads.StringPayload;
@@ -84,6 +85,10 @@ public class Payloads {
       return new FilePayload(checkNotNull(data, "data"));
    }
    
+   public static ChunkedFilePayload newChunkedFilePayload(File data, int part, long chunkOffset, long chunkSize) {
+      return new ChunkedFilePayload(checkNotNull(data, "data"), part, chunkOffset, chunkSize);
+   }
+
    public static UrlEncodedFormPayload newUrlEncodedFormPayload(Multimap<String, String> formParams, char... skips) {
       return new UrlEncodedFormPayload(formParams, skips);
    }

core/src/main/java/org/jclouds/io/payloads/ChunkedFileInputStream.java

@@ -0,0 +1,126 @@
+/**
+ *
+ * Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
+ *
+ * ====================================================================
+ * Licensed 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.io.payloads;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.RandomAccessFile;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.handler.stream.ChunkedFile;
+
+/**
+ * 
+ *
+ *
+ *
+ * @author Tibor Kiss
+ */
+public class ChunkedFileInputStream extends InputStream {
+   
+   private static final int CHUNK_SIZE = 8192;
+   
+   private ChunkedFile chunks;
+   private ChannelBuffer chunk;
+   
+   private IOException ex;
+
+   public ChunkedFileInputStream(String filename, long offset, long length) {
+      this(new File(filename), offset, length);
+   }
+   
+   public ChunkedFileInputStream(File file, long offset, long length) {
+      try {
+         this.chunks = new ChunkedFile(new RandomAccessFile(file, "r"), offset, length, CHUNK_SIZE);
+      } catch (IOException ex) {
+         this.ex = ex;
+      }
+   }
+
+   private ChannelBuffer getChunk() throws Exception {
+      if (ex != null) {
+         throw ex;
+      }
+      if (chunk == null) {
+         chunk = ChannelBuffer.class.cast(chunks.nextChunk());
+      }      
+      if (chunk != null) {
+         if (chunk.readableBytes() < 1 && chunks.hasNextChunk()) {            
+            chunk = ChannelBuffer.class.cast(chunks.nextChunk());
+            if (chunk.readableBytes() < 1) {
+               return null;
+            }
+         }
+      } else {
+         return null;
+      }
+      return chunk;
+   }
+   
+   @Override
+   public int read() throws IOException {
+      try {
+         ChannelBuffer chunk = getChunk();
+         if (chunk == null)
+            return -1;
+         if (chunk.readableBytes() < 1)
+            return -1;
+         int readIndex = chunk.readerIndex();
+         byte abyte = chunk.getByte(readIndex);
+         chunk.readerIndex(readIndex + 1);
+         return (int)abyte;
+      } catch (Exception e) {
+         throw new IOException(e);
+      }
+   }
+   
+   @Override
+   public int read(byte[] b, int off, int len) throws IOException {
+      try { 
+         ChannelBuffer chunk = getChunk();
+         if (chunk == null)
+            return -1;
+         int readable = chunk.readableBytes();
+         if (readable < 1)
+            return -1;
+         if (readable > len) {
+            readable = len;
+         }
+         int readIndex = chunk.readerIndex();
+         chunk.getBytes(readIndex, b, off, readable);
+         chunk.readerIndex(readIndex + readable);
+         return readable;
+      } catch (Exception e) {
+         throw new IOException(e);
+      }      
+   }
+
+   @Override
+   public void close() throws IOException {
+      try {
+         chunks.close();
+      } catch (Exception e) {
+         throw new IOException(e);
+      }
+   }
+
+}

core/src/main/java/org/jclouds/io/payloads/ChunkedFilePayload.java

@@ -0,0 +1,50 @@
+/**
+ *
+ * Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
+ *
+ * ====================================================================
+ * Licensed 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.io.payloads;
+
+import java.io.File;
+import java.io.InputStream;
+
+public class ChunkedFilePayload extends FilePayload {
+
+   private int part;
+   private long chunkOffset;
+   private long chunkSize;
+   
+   public ChunkedFilePayload(File content) {
+      this(content, 1, 0, content.length());
+   }
+   
+   public ChunkedFilePayload(File content, int part, long chunkOffset, long chunkSize) {
+      super(content);
+      this.part = part;
+      this.chunkOffset = chunkOffset;
+      this.chunkSize = chunkSize;
+   }
+   
+   public int getPart() {
+      return part;
+   }
+
+   @Override
+   public InputStream getInput() {
+      return new ChunkedFileInputStream(getRawContent(), chunkOffset, chunkSize);
+   }
+}

providers/aws-s3/src/main/java/org/jclouds/aws/s3/AWSS3ContextBuilder.java

@@ -22,8 +22,10 @@ package org.jclouds.aws.s3;
 import java.util.List;
 import java.util.Properties;
 
+import org.jclouds.aws.s3.blobstore.config.AWSS3BlobStoreContextModule;
 import org.jclouds.aws.s3.config.AWSS3RestClientModule;
 import org.jclouds.s3.S3ContextBuilder;
+import org.jclouds.s3.blobstore.config.S3BlobStoreContextModule;
 
 import com.google.inject.Module;
 
@@ -37,6 +39,11 @@ public class AWSS3ContextBuilder extends S3ContextBuilder {
       super(props);
    }
 
+   @Override
+   protected void addContextModule(List<Module> modules) {
+      modules.add(new AWSS3BlobStoreContextModule());
+   }
+
    @Override
    protected void addClientModule(List<Module> modules) {
       modules.add(new AWSS3RestClientModule());

providers/aws-s3/src/main/java/org/jclouds/aws/s3/blobstore/AWSS3AsyncBlobStore.java

@@ -0,0 +1,67 @@
+/**
+ *
+ * Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
+ *
+ * ====================================================================
+ * Licensed 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.aws.s3.blobstore;
+
+import java.util.Set;
+import java.util.concurrent.ExecutorService;
+
+import javax.inject.Inject;
+import javax.inject.Named;
+import javax.inject.Provider;
+
+import org.jclouds.Constants;
+import org.jclouds.aws.s3.AWSS3AsyncClient;
+import org.jclouds.aws.s3.AWSS3Client;
+import org.jclouds.blobstore.BlobStoreContext;
+import org.jclouds.blobstore.functions.BlobToHttpGetOptions;
+import org.jclouds.blobstore.strategy.internal.FetchBlobMetadata;
+import org.jclouds.blobstore.util.BlobUtils;
+import org.jclouds.collect.Memoized;
+import org.jclouds.domain.Location;
+import org.jclouds.s3.blobstore.S3AsyncBlobStore;
+import org.jclouds.s3.blobstore.functions.BlobToObject;
+import org.jclouds.s3.blobstore.functions.BucketToResourceList;
+import org.jclouds.s3.blobstore.functions.BucketToResourceMetadata;
+import org.jclouds.s3.blobstore.functions.ContainerToBucketListOptions;
+import org.jclouds.s3.blobstore.functions.ObjectToBlob;
+import org.jclouds.s3.blobstore.functions.ObjectToBlobMetadata;
+
+import com.google.common.base.Supplier;
+
+/**
+ *
+ * @author Tibor Kiss
+ */
+public class AWSS3AsyncBlobStore extends S3AsyncBlobStore {
+
+   @Inject
+   public AWSS3AsyncBlobStore(BlobStoreContext context, BlobUtils blobUtils,
+         @Named(Constants.PROPERTY_USER_THREADS) ExecutorService service, Supplier<Location> defaultLocation,
+         @Memoized Supplier<Set<? extends Location>> locations, AWSS3AsyncClient async, AWSS3Client sync,
+         BucketToResourceMetadata bucket2ResourceMd, ContainerToBucketListOptions container2BucketListOptions,
+         BucketToResourceList bucket2ResourceList, ObjectToBlob object2Blob,
+         BlobToHttpGetOptions blob2ObjectGetOptions, BlobToObject blob2Object, ObjectToBlobMetadata object2BlobMd,
+         Provider<FetchBlobMetadata> fetchBlobMetadataProvider) {
+   super(context, blobUtils, service, defaultLocation, locations, async, sync, bucket2ResourceMd, 
+         container2BucketListOptions, bucket2ResourceList, object2Blob, blob2ObjectGetOptions, 
+         blob2Object, object2BlobMd, fetchBlobMetadataProvider);
+   }
+
+}

providers/aws-s3/src/main/java/org/jclouds/aws/s3/blobstore/AWSS3BlobStore.java

@@ -0,0 +1,76 @@
+/**
+ *
+ * Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
+ *
+ * ====================================================================
+ * Licensed 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.aws.s3.blobstore;
+
+import java.util.Set;
+
+import javax.inject.Inject;
+import javax.inject.Provider;
+
+import org.jclouds.aws.s3.AWSS3Client;
+import org.jclouds.aws.s3.blobstore.strategy.MultipartUploadStrategy;
+import org.jclouds.aws.s3.blobstore.strategy.internal.SequentialMultipartUploadStrategy;
+import org.jclouds.blobstore.BlobStoreContext;
+import org.jclouds.blobstore.domain.Blob;
+import org.jclouds.blobstore.functions.BlobToHttpGetOptions;
+import org.jclouds.blobstore.strategy.internal.FetchBlobMetadata;
+import org.jclouds.blobstore.util.BlobUtils;
+import org.jclouds.collect.Memoized;
+import org.jclouds.domain.Location;
+import org.jclouds.s3.blobstore.S3BlobStore;
+import org.jclouds.s3.blobstore.functions.BlobToObject;
+import org.jclouds.s3.blobstore.functions.BucketToResourceList;
+import org.jclouds.s3.blobstore.functions.BucketToResourceMetadata;
+import org.jclouds.s3.blobstore.functions.ContainerToBucketListOptions;
+import org.jclouds.s3.blobstore.functions.ObjectToBlob;
+import org.jclouds.s3.blobstore.functions.ObjectToBlobMetadata;
+
+import com.google.common.base.Supplier;
+
+/**
+ * Proived AWS S3 specific extensions.  
+ *
+ * @author Tibor Kiss
+ */
+public class AWSS3BlobStore extends S3BlobStore {
+   
+   private MultipartUploadStrategy multipartUploadStrategy;
+
+   @Inject
+   AWSS3BlobStore(BlobStoreContext context, BlobUtils blobUtils, Supplier<Location> defaultLocation,
+            @Memoized Supplier<Set<? extends Location>> locations, AWSS3Client sync,
+            BucketToResourceMetadata bucket2ResourceMd, ContainerToBucketListOptions container2BucketListOptions,
+            BucketToResourceList bucket2ResourceList, ObjectToBlob object2Blob,
+            BlobToHttpGetOptions blob2ObjectGetOptions, BlobToObject blob2Object, ObjectToBlobMetadata object2BlobMd,
+            Provider<FetchBlobMetadata> fetchBlobMetadataProvider) {
+      super(context, blobUtils, defaultLocation, locations, sync, bucket2ResourceMd, container2BucketListOptions,
+            bucket2ResourceList, object2Blob, blob2ObjectGetOptions, blob2Object, object2BlobMd,
+            fetchBlobMetadataProvider);
+      multipartUploadStrategy = new SequentialMultipartUploadStrategy(this);
+   }
+
+   /* (non-Javadoc)
+    * @see org.jclouds.blobstore.internal.BaseBlobStore#putBlobMultipart(java.lang.String, org.jclouds.blobstore.domain.Blob)
+    */
+   @Override
+   public String putBlobMultipart(String container, Blob blob) {
+      return multipartUploadStrategy.execute(container, blob);
+   }
+}

providers/aws-s3/src/main/java/org/jclouds/aws/s3/blobstore/config/AWSS3BlobStoreContextModule.java

@@ -0,0 +1,59 @@
+/**
+ *
+ * Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
+ *
+ * ====================================================================
+ * Licensed 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.aws.s3.blobstore.config;
+
+import org.jclouds.aws.s3.AWSS3AsyncClient;
+import org.jclouds.aws.s3.AWSS3Client;
+import org.jclouds.aws.s3.blobstore.AWSS3AsyncBlobStore;
+import org.jclouds.aws.s3.blobstore.AWSS3BlobStore;
+import org.jclouds.blobstore.AsyncBlobStore;
+import org.jclouds.blobstore.BlobRequestSigner;
+import org.jclouds.blobstore.BlobStore;
+import org.jclouds.blobstore.BlobStoreContext;
+import org.jclouds.blobstore.attr.ConsistencyModel;
+import org.jclouds.blobstore.config.BlobStoreMapModule;
+import org.jclouds.blobstore.internal.BlobStoreContextImpl;
+import org.jclouds.location.config.RegionsLocationModule;
+import org.jclouds.s3.blobstore.S3BlobRequestSigner;
+import org.jclouds.s3.blobstore.config.S3BlobStoreContextModule;
+
+import com.google.inject.Scopes;
+import com.google.inject.TypeLiteral;
+
+/**
+ * 
+ *
+ * @author Tibor Kiss
+ */
+public class AWSS3BlobStoreContextModule extends S3BlobStoreContextModule {
+
+   @Override
+   protected void configure() {
+      install(new BlobStoreMapModule());
+      install(new RegionsLocationModule());
+      bind(ConsistencyModel.class).toInstance(ConsistencyModel.EVENTUAL);
+      bind(AsyncBlobStore.class).to(AWSS3AsyncBlobStore.class).in(Scopes.SINGLETON);
+      bind(BlobStore.class).to(AWSS3BlobStore.class).in(Scopes.SINGLETON);
+      bind(BlobStoreContext.class).to(new TypeLiteral<BlobStoreContextImpl<AWSS3Client, AWSS3AsyncClient>>() {
+      }).in(Scopes.SINGLETON);
+      bind(BlobRequestSigner.class).to(S3BlobRequestSigner.class);
+      bindBucketLocationStrategy();
+   }
+}

providers/aws-s3/src/main/java/org/jclouds/aws/s3/blobstore/strategy/MultipartUploadStrategy.java

@@ -0,0 +1,50 @@
+/**
+ *
+ * Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
+ *
+ * ====================================================================
+ * Licensed 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.aws.s3.blobstore.strategy;
+
+import org.jclouds.aws.s3.blobstore.strategy.internal.SequentialMultipartUploadStrategy;
+import org.jclouds.blobstore.domain.Blob;
+
+import com.google.inject.ImplementedBy;
+
+/**
+ * @see <a href="http://docs.amazonwebservices.com/AmazonS3/latest/dev/index.html?qfacts.html"
+ *
+ * @author Tibor Kiss
+ */
+@ImplementedBy(SequentialMultipartUploadStrategy.class)
+public interface MultipartUploadStrategy {
+   
+   /* Maximum number of parts per upload */
+   public static final int MAX_NUMBER_OF_PARTS = 10000;
+   /* Maximum number of parts returned for a list parts request */
+   public static final int MAX_LIST_PARTS_RETURNED = 1000;
+   /* Maximum number of multipart uploads returned in a list multipart uploads request */
+   public static final int MAX_LIST_MPU_RETURNED = 1000;
+   
+   /*
+    * part size 5 MB to 5 GB, last part can be < 5 MB
+    */
+   public static final long MIN_PART_SIZE = 5242880L;
+   public static final long MAX_PART_SIZE = 5368709120L;
+      
+   String execute(String container, Blob blob);
+   
+}

providers/aws-s3/src/main/java/org/jclouds/aws/s3/blobstore/strategy/internal/SequentialMultipartUploadStrategy.java

@@ -0,0 +1,185 @@
+/**
+ *
+ * Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
+ *
+ * ====================================================================
+ * Licensed 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.aws.s3.blobstore.strategy.internal;
+
+import static org.jclouds.io.Payloads.newChunkedFilePayload;
+
+import java.io.File;
+
+import java.util.Map;
+
+import org.jclouds.aws.s3.AWSS3Client;
+import org.jclouds.aws.s3.blobstore.AWSS3BlobStore;
+import org.jclouds.aws.s3.blobstore.strategy.MultipartUploadStrategy;
+import org.jclouds.blobstore.KeyNotFoundException;
+import org.jclouds.blobstore.domain.Blob;
+import org.jclouds.io.Payload;
+import org.jclouds.io.payloads.FilePayload;
+import org.jclouds.s3.domain.ObjectMetadataBuilder;
+
+import com.google.common.collect.Maps;
+
+/**
+ * Provides a sequential multipart upload strategy.
+ * 
+ * The file partitioning algorithm:
+ *
+ * The default partition size we choose is 32mb. 
+ * A multiple of this default partition size is used. 
+ * The number of parts first grows to a chosen magnitude (for example 100 parts), 
+ * then it grows the partition size instead of number of partitions.
+ * When we reached the maximum part size, then again it starts to grow the number of partitions.
+ *
+ * @author Tibor Kiss
+ */
+public class SequentialMultipartUploadStrategy implements
+      MultipartUploadStrategy {
+
+   private final long DEFAULT_PART_SIZE = 33554432; // 32mb 
+   private final int MAGNITUDE_BASE = 100;
+      
+   private final AWSS3BlobStore ablobstore;
+
+   // calculated only once, but not from the constructor
+   private volatile long parts; // required number of parts with chunkSize
+   private volatile long chunkSize;
+   private volatile long remaining; // number of bytes remained for the last part
+   
+   // sequentially updated values
+   private volatile int part;
+   private volatile long chunkOffset;
+   private volatile long copied;
+   
+   public SequentialMultipartUploadStrategy(AWSS3BlobStore ablobstore) {
+      this.ablobstore = ablobstore;
+   }
+
+   protected long calculateChunkSize(long length) {
+      long unitPartSize = DEFAULT_PART_SIZE; // first try with default part size
+      long parts = length / unitPartSize;
+      long partSize = unitPartSize;
+      int magnitude = (int) (parts / MAGNITUDE_BASE);
+      if (magnitude > 0) {
+         partSize = magnitude * unitPartSize;
+         if (partSize > MAX_PART_SIZE) {
+            partSize = MAX_PART_SIZE;
+            unitPartSize = MAX_PART_SIZE;
+         }
+         parts = length / partSize;
+      }
+      if (parts > MAX_NUMBER_OF_PARTS) { // if splits in too many parts or
+                                         // cannot be split
+         unitPartSize = MIN_PART_SIZE; // take the minimum part size
+         parts = length / unitPartSize;
+      }
+      if (parts > MAX_NUMBER_OF_PARTS) { // if still splits in too many parts
+         parts = MAX_NUMBER_OF_PARTS - 1; // limit them. do not care about not
+                                          // covering
+      }
+      long remainder = length % unitPartSize;
+      if (remainder == 0 && parts > 0) {
+         parts -= 1;
+      }
+      this.chunkSize = partSize;
+      this.parts = parts;
+      this.remaining = length - partSize * parts;
+      System.out.println(" " + length + " bytes partitioned in " + parts
+            + " parts of part size: " + chunkSize + ", remaining: "
+            + remaining + (remaining > MAX_PART_SIZE ? " overflow!" : ""));
+      return this.chunkSize;
+   }
+   
+   protected long getParts() {
+      return parts;
+   }
+   
+   protected int getNextPart() {
+      return ++part;
+   }
+   
+   protected void addCopied(long copied) {
+      this.copied += copied;
+   }
+   
+   protected long getNextChunkOffset() {
+      long next = chunkOffset;
+      chunkOffset += getChunkSize();
+      return next;
+   }
+   
+   protected long getChunkSize() {
+      return chunkSize;
+   }
+   
+   protected long getRemaining() {
+      return remaining;
+   }
+   
+   private String prepareUploadPart(AWSS3Client client, String container, String key, String uploadId,
+         int part, File file, long chunkOffset, long chunkSize) {
+      Payload chunkedPart = newChunkedFilePayload(file, part, chunkOffset, chunkSize);
+      chunkedPart.getContentMetadata().setContentLength(chunkSize);
+      //chukedPayload.getContentMetadata().setContentMD5(???);
+      String eTag = null;
+      try {
+         eTag = client.uploadPart(container, key, part, uploadId, chunkedPart);
+      } catch (KeyNotFoundException e) {
+         // note that because of eventual consistency, the upload id may not be present yet
+         // we may wish to add this condition to the retry handler
+
+         // we may also choose to implement ListParts and wait for the uploadId to become
+         // available there.
+         eTag = client.uploadPart(container, key, part, uploadId, chunkedPart);
+      }
+      return eTag;
+   }
+
+   @Override
+   public String execute(String container, Blob blob) {
+      Payload payload = blob.getPayload();
+      if (payload instanceof FilePayload) {
+         String key = blob.getMetadata().getName();
+         File file = FilePayload.class.cast(payload).getRawContent();
+         calculateChunkSize(file.length());
+         long parts = getParts();
+         if (parts > 0) {
+            AWSS3Client client = (AWSS3Client) ablobstore.getContext().getProviderSpecificContext().getApi();
+            String uploadId = client.initiateMultipartUpload(container, 
+                  ObjectMetadataBuilder.create().key(key).build()); // TODO md5            
+            Map<Integer, String> etags = Maps.newHashMap();
+            int part;
+            while ((part = getNextPart()) <= getParts()) {
+               String eTag = prepareUploadPart(client, container, key, uploadId, part, file, getNextChunkOffset(), chunkSize);
+               etags.put(new Integer(part), eTag);
+            }
+            long remaining = getRemaining();
+            if (remaining > 0) {
+               String eTag = prepareUploadPart(client, container, key, uploadId, part, file, getNextChunkOffset(), remaining);
+               etags.put(new Integer(part), eTag);
+            }            
+            return client.completeMultipartUpload(container, key, uploadId, etags);
+         } else {
+            return ablobstore.putBlob(container, blob);
+         }
+      } else {
+         return ablobstore.putBlob(container, blob);
+      }
+   }
+}

providers/aws-s3/src/test/java/org/jclouds/aws/s3/AWSS3ClientLiveTest.java

@@ -27,11 +27,15 @@ import static org.jclouds.io.Payloads.newByteArrayPayload;
 import static org.testng.Assert.assertEquals;
 
 import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.zip.GZIPInputStream;
 
+import org.jclouds.blobstore.BlobStore;
 import org.jclouds.blobstore.KeyNotFoundException;
+import org.jclouds.blobstore.domain.Blob;
 import org.jclouds.http.BaseJettyTest;
 import org.jclouds.http.apachehc.config.ApacheHCHttpCommandExecutorServiceModule;
 import org.jclouds.io.Payload;
@@ -43,6 +47,7 @@ import org.testng.annotations.BeforeClass;
 import org.testng.annotations.Test;
 
 import com.google.common.collect.ImmutableMap;
+import com.google.common.io.ByteStreams;
 import com.google.common.io.InputSupplier;
 import com.google.inject.Module;
 
@@ -134,4 +139,23 @@ public class AWSS3ClientLiveTest extends S3ClientLiveTest {
          returnContainer(containerName);
       }
    }
+   
+   public void testMultipartChunkedFileStream() throws IOException, InterruptedException {
+      
+      FileOutputStream fous = new FileOutputStream(new File("target/const.txt"));
+      ByteStreams.copy(oneHundredOneConstitutions.getInput(), fous);
+      fous.flush();
+      fous.close();
+      String containerName = getContainerName();
+      
+      try {
+         BlobStore blobStore = context.getBlobStore();
+         blobStore.createContainerInLocation(null, containerName);
+         Blob blob = blobStore.blobBuilder("const.txt")
+            .payload(new File("target/const.txt")).build();
+         blobStore.putBlobMultipart(containerName, blob);
+      } finally {
+         returnContainer(containerName);
+      }
+   }
 }

providers/azureblob/src/main/java/org/jclouds/azureblob/blobstore/AzureBlobStore.java

@@ -192,6 +192,19 @@ public class AzureBlobStore extends BaseBlobStore {
       return sync.putBlob(container, blob2AzureBlob.apply(blob));
    }
 
+   /**
+    * This implementation invokes {@link AzureBlobClient#putObject}
+    * 
+    * @param container
+    *           container name
+    * @param blob
+    *           object
+    */
+   @Override
+   public String putBlobMultipart(String container, Blob blob) {
+      return putBlob(container, blob);
+   }
+
    /**
     * This implementation invokes {@link AzureBlobClient#deleteObject}
     *