org.jclouds.azureblob.binders.BindAzureContentMetadataToRequest.java Source code

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Here is the source code for org.jclouds.azureblob.binders.BindAzureContentMetadataToRequest.java

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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.azureblob.binders;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;

import javax.inject.Singleton;

import org.jclouds.azure.storage.reference.AzureStorageHeaders;
import org.jclouds.http.HttpRequest;
import org.jclouds.io.ContentMetadata;
import org.jclouds.rest.Binder;

import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Multimaps;

@Singleton
public class BindAzureContentMetadataToRequest implements Binder {

    public BindAzureContentMetadataToRequest() {
    }

    @SuppressWarnings("unchecked")
    @Override
    public <R extends HttpRequest> R bindToRequest(R request, Object input) {
        checkArgument(checkNotNull(input, "input") instanceof ContentMetadata,
                "this binder is only valid for ContentMetadata");
        checkNotNull(request, "request");
        ContentMetadata contentMetadata = (ContentMetadata) input;

        ImmutableMap.Builder<String, String> headers = ImmutableMap.builder();

        String cacheControl = contentMetadata.getCacheControl();
        if (cacheControl != null) {
            headers.put(AzureStorageHeaders.CACHE_CONTROL, cacheControl);
        }

        String contentDisposition = contentMetadata.getContentDisposition();
        if (contentDisposition != null) {
            headers.put(AzureStorageHeaders.CONTENT_DISPOSITION, contentDisposition);
        }

        String contentEncoding = contentMetadata.getContentEncoding();
        if (contentEncoding != null) {
            headers.put(AzureStorageHeaders.CONTENT_ENCODING, contentEncoding);
        }

        String contentLanguage = contentMetadata.getContentLanguage();
        if (contentLanguage != null) {
            headers.put(AzureStorageHeaders.CONTENT_LANGUAGE, contentLanguage);
        }

        String contentType = contentMetadata.getContentType();
        if (contentType != null) {
            headers.put(AzureStorageHeaders.CONTENT_TYPE, contentType);
        }

        return (R) request.toBuilder().replaceHeaders(Multimaps.forMap(headers.build())).build();
    }
}