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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 com.aliyuncs;

import java.io.UnsupportedEncodingException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.HashMap;
import java.util.Map;

import com.aliyuncs.auth.Credential;
import com.aliyuncs.auth.ISigner;
import com.aliyuncs.auth.OssSignatureComposer;
import com.aliyuncs.auth.RoaSignatureComposer;
import com.aliyuncs.http.FormatType;
import com.aliyuncs.http.HttpRequest;
import com.aliyuncs.regions.ProductDomain;

public abstract class OssAcsRequest 
	extends RoaAcsRequest {

	private String bucketName = null;
	
	public OssAcsRequest(String product, String actionName) {
		super(product);
		this.setActionName(actionName);
		this.composer = OssSignatureComposer.getComposer();
	}

	@Override
	public void setVersion(String version) {
		
	}

	@Override
	public String composeUrl(String endpoint,
			Map queries) 
			throws UnsupportedEncodingException{
		Map mapQueries = 
				queries == null?this.getQueryParameters():queries;
				
		StringBuilder urlBuilder = new StringBuilder("");
		urlBuilder.append(this.getProtocol().toString());
		urlBuilder.append("://");
		if (null != this.bucketName)
			urlBuilder.append(this.bucketName).append(".");
		urlBuilder.append(endpoint);
		if (null != this.uriPattern)
			urlBuilder.append(
					RoaSignatureComposer.replaceOccupiedParameters
					(uriPattern, this.getPathParameters()));
		if (-1 == urlBuilder.indexOf("?"))
			urlBuilder.append("?");
		String query = concatQueryString(mapQueries);
		
		return urlBuilder.append(query).toString();
	}
	
	@Override
	public HttpRequest signRequest(ISigner signer, Credential credential,
			FormatType format, ProductDomain domain) 
			throws InvalidKeyException, IllegalStateException, 
			UnsupportedEncodingException, NoSuchAlgorithmException {
		Map imutableMap = new HashMap(this.getHeaders());
		if (null != signer && null != credential) {
			String accessKeyId = credential.getAccessKeyId();
			String accessSecret = credential.getAccessSecret();
			imutableMap = this.composer.refreshSignParameters
					(this.getHeaders(), signer, accessKeyId, format);
			String uri = this.uriPattern;
			if (null != this.bucketName){
				uri = "/" + bucketName + uri;
			}
			String strToSign = this.composer.composeStringToSign(this.getMethod(), uri, signer, 
					this.getQueryParameters(), imutableMap, this.getPathParameters());
			String signature = signer.signString(strToSign, accessSecret);
			imutableMap.put("Authorization", "OSS "+ accessKeyId+":"+signature);
		}
		HttpRequest request = new HttpRequest(
				this.composeUrl(domain.getDomianName(), this.getQueryParameters()), imutableMap);
		request.setMethod(this.getMethod());
		request.setContent(this.getContent(), this.getEncoding(), this.getContentType());
		
		return request;
	}
	
	public abstract Class getResponseClass();
}




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