Copyright Microsoft Corporation
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.
/**
 * Copyright Microsoft Corporation
 * 
 * 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 com.microsoft.azure.storage.core;

import java.net.HttpURLConnection;
import java.security.InvalidParameterException;

import com.microsoft.azure.storage.Constants;
import com.microsoft.azure.storage.StorageException;

RESERVED FOR INTERNAL USE. Provides an implementation of the Canonicalizer class for requests against Table
Service under the Shared Key authentication scheme.
/**
 * RESERVED FOR INTERNAL USE. Provides an implementation of the Canonicalizer class for requests against Table
 * Service under the Shared Key authentication scheme.
 */
final class TableCanonicalizer extends Canonicalizer {

    
Constructs a canonicalized string for signing a request.
Params:
conn – 
           the HttpURLConnection to canonicalize
accountName – 
           the account name associated with the request
contentLength – 
           the length of the content written to the outputstream in bytes, -1 if unknown
Throws:
StorageException – 
Returns:
a canonicalized string./**
     * Constructs a canonicalized string for signing a request.
     * 
     * @param conn
     *            the HttpURLConnection to canonicalize
     * @param accountName
     *            the account name associated with the request
     * @param contentLength
     *            the length of the content written to the outputstream in bytes, -1 if unknown
     * @return a canonicalized string.
     * @throws StorageException
     */
    @Override
    protected String canonicalize(final HttpURLConnection conn, final String accountName, final Long contentLength)
            throws StorageException {

        if (contentLength < -1) {
            throw new InvalidParameterException(SR.INVALID_CONTENT_LENGTH);
        }

        return canonicalizeTableHttpRequest(conn.getURL(), accountName, conn.getRequestMethod(),
                Utility.getStandardHeaderValue(conn, Constants.HeaderConstants.CONTENT_TYPE), contentLength, null,
                conn);
    }
}