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COSXML/Model/Object/SelectObjectRequest.cs

@@ -0,0 +1,90 @@
+using System.Text;
+using COSXML.Common;
+using COSXML.Network;
+using COSXML.Model.Tag;
+using COSXML.CosException;
+
+namespace COSXML.Model.Object
+{
+    public sealed class SelectObjectRequest : ObjectRequest
+    {
+        private string expression;
+
+        private string expressionType = "SQL";
+
+        private ObjectSelectionFormat inputFormat;
+
+        private ObjectSelectionFormat outputFormat;
+
+        internal COSXML.Callback.OnProgressCallback progressCallback;
+
+        internal string outputFilePath;
+
+        
+        public SelectObjectRequest(string bucket, string key)
+            : base(bucket, key)
+        {
+            this.method = CosRequestMethod.POST;
+            this.queryParameters.Add("select", null);
+            this.queryParameters.Add("select-type", "2");
+        }
+
+        public SelectObjectRequest outputToFile(string filePath) {
+            outputFilePath = filePath;
+            return this;
+        }
+
+        public SelectObjectRequest setExpression(string expression) {
+            this.expression = expression;
+            return this;
+        }
+
+        public SelectObjectRequest setExpressionType(string expressionType) {
+            this.expressionType = expressionType;
+            return this;
+        }
+
+        public SelectObjectRequest setInputFormat(ObjectSelectionFormat inputFormat) {
+            this.inputFormat = inputFormat;
+            return this;
+        }
+
+        public SelectObjectRequest setOutputFormat(ObjectSelectionFormat outputFormat) {
+            this.outputFormat = outputFormat;
+            return this;
+        }
+
+        public SelectObjectRequest SetCosProgressCallback(COSXML.Callback.OnProgressCallback progressCallback)
+        {
+            this.progressCallback = progressCallback;
+            return this;
+        }
+
+        public override void CheckParameters()
+        {
+            base.CheckParameters();
+            
+            if (expression == null) {
+              throw new CosClientException((int)CosClientError.INVALID_ARGUMENT, 
+                "expression is null");
+            }
+            if (inputFormat == null) {
+              throw new CosClientException((int)CosClientError.INVALID_ARGUMENT, 
+                "inputFormat is null");
+            }
+            if (outputFormat == null) {
+              throw new CosClientException((int)CosClientError.INVALID_ARGUMENT, 
+                "outputFormat is null");
+            }
+        }
+
+        public override Network.RequestBody GetRequestBody()
+        {
+            string content = Transfer.XmlBuilder.BuildSelection(expression, expressionType, inputFormat,
+              outputFormat, progressCallback != null);
+            byte[] data = Encoding.UTF8.GetBytes(content);
+            ByteRequestBody body = new ByteRequestBody(data);
+            return body;
+        }
+    }
+}