dynamodb v2 no indexes
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creyer
Sorin
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12 changed files with 1509 additions and 0 deletions
302
moto/dynamodb2/responses.py
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302
moto/dynamodb2/responses.py
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import json
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from moto.core.responses import BaseResponse
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from moto.core.utils import camelcase_to_underscores
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from .models import dynamodb_backend2, dynamo_json_dump
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GET_SESSION_TOKEN_RESULT = """
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<GetSessionTokenResponse xmlns="https://sts.amazonaws.com/doc/2011-06-15/">
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<GetSessionTokenResult>
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<Credentials>
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<SessionToken>
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AQoEXAMPLEH4aoAH0gNCAPyJxz4BlCFFxWNE1OPTgk5TthT+FvwqnKwRcOIfrRh3c/L
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To6UDdyJwOOvEVPvLXCrrrUtdnniCEXAMPLE/IvU1dYUg2RVAJBanLiHb4IgRmpRV3z
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rkuWJOgQs8IZZaIv2BXIa2R4OlgkBN9bkUDNCJiBeb/AXlzBBko7b15fjrBs2+cTQtp
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Z3CYWFXG8C5zqx37wnOE49mRl/+OtkIKGO7fAE
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</SessionToken>
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<SecretAccessKey>
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wJalrXUtnFEMI/K7MDENG/bPxRfiCYzEXAMPLEKEY
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</SecretAccessKey>
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<Expiration>2011-07-11T19:55:29.611Z</Expiration>
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<AccessKeyId>AKIAIOSFODNN7EXAMPLE</AccessKeyId>
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</Credentials>
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</GetSessionTokenResult>
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<ResponseMetadata>
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<RequestId>58c5dbae-abef-11e0-8cfe-09039844ac7d</RequestId>
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</ResponseMetadata>
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</GetSessionTokenResponse>"""
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def sts_handler():
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return GET_SESSION_TOKEN_RESULT
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class DynamoHandler(BaseResponse):
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def get_endpoint_name(self, headers):
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"""Parses request headers and extracts part od the X-Amz-Target
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that corresponds to a method of DynamoHandler
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ie: X-Amz-Target: DynamoDB_20111205.ListTables -> ListTables
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"""
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# Headers are case-insensitive. Probably a better way to do this.
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match = headers.get('x-amz-target') or headers.get('X-Amz-Target')
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if match:
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return match.split(".")[1]
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def error(self, type_, status=400):
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return status, self.response_headers, dynamo_json_dump({'__type': type_})
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def call_action(self):
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if 'GetSessionToken' in self.body:
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return 200, self.response_headers, sts_handler()
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self.body = json.loads(self.body or '{}')
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endpoint = self.get_endpoint_name(self.headers)
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if endpoint:
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endpoint = camelcase_to_underscores(endpoint)
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response = getattr(self, endpoint)()
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if isinstance(response, basestring):
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return 200, self.response_headers, response
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else:
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status_code, new_headers, response_content = response
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self.response_headers.update(new_headers)
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return status_code, self.response_headers, response_content
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else:
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return 404, self.response_headers, ""
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def list_tables(self):
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body = self.body
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limit = body.get('Limit')
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if body.get("ExclusiveStartTableName"):
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last = body.get("ExclusiveStartTableName")
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start = dynamodb_backend2.tables.keys().index(last) + 1
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else:
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start = 0
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all_tables = dynamodb_backend2.tables.keys()
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if limit:
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tables = all_tables[start:start + limit]
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else:
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tables = all_tables[start:]
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response = {"TableNames": tables}
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if limit and len(all_tables) > start + limit:
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response["LastEvaluatedTableName"] = tables[-1]
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return dynamo_json_dump(response)
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def create_table(self):
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body = self.body
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#get the table name
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table_name = body['TableName']
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#get the throughput
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throughput = body["ProvisionedThroughput"]
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#getting the schema
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key_schema = body['KeySchema']
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#getting attribute definition
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attr = body["AttributeDefinitions"]
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#getting the indexes
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table = dynamodb_backend2.create_table(table_name,
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schema = key_schema,
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throughput = throughput,
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attr = attr)
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return dynamo_json_dump(table.describe)
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def delete_table(self):
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name = self.body['TableName']
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table = dynamodb_backend2.delete_table(name)
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if table is not None:
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return dynamo_json_dump(table.describe)
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else:
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er = 'com.amazonaws.dynamodb.v20111205#ResourceNotFoundException'
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return self.error(er)
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def update_table(self):
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name = self.body['TableName']
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throughput = self.body["ProvisionedThroughput"]
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table = dynamodb_backend2.update_table_throughput(name, throughput)
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return dynamo_json_dump(table.describe)
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def describe_table(self):
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name = self.body['TableName']
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try:
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table = dynamodb_backend2.tables[name]
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except KeyError:
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er = 'com.amazonaws.dynamodb.v20111205#ResourceNotFoundException'
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return self.error(er)
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return dynamo_json_dump(table.describe)
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def put_item(self):
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name = self.body['TableName']
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item = self.body['Item']
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result = dynamodb_backend2.put_item(name, item)
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if result:
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item_dict = result.to_json()
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item_dict['ConsumedCapacityUnits'] = 1
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return dynamo_json_dump(item_dict)
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else:
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er = 'com.amazonaws.dynamodb.v20111205#ResourceNotFoundException'
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return self.error(er)
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def batch_write_item(self):
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table_batches = self.body['RequestItems']
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for table_name, table_requests in table_batches.iteritems():
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for table_request in table_requests:
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request_type = table_request.keys()[0]
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request = table_request.values()[0]
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if request_type == 'PutRequest':
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item = request['Item']
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dynamodb_backend2.put_item(table_name, item)
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elif request_type == 'DeleteRequest':
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keys = request['Key']
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item = dynamodb_backend2.delete_item(table_name, keys)
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response = {
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"Responses": {
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"Thread": {
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"ConsumedCapacityUnits": 1.0
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},
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"Reply": {
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"ConsumedCapacityUnits": 1.0
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}
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},
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"UnprocessedItems": {}
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}
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return dynamo_json_dump(response)
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def get_item(self):
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name = self.body['TableName']
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key = self.body['Key']
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try:
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item = dynamodb_backend2.get_item(name, key)
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except ValueError:
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er = 'com.amazon.coral.validate#ValidationException'
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return self.error(er, status=400)
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if item:
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item_dict = item.describe_attrs(attributes = None)
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item_dict['ConsumedCapacityUnits'] = 0.5
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return dynamo_json_dump(item_dict)
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else:
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# Item not found
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er = 'com.amazonaws.dynamodb.v20111205#ResourceNotFoundException'
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return self.error(er, status=404)
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def batch_get_item(self):
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table_batches = self.body['RequestItems']
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results = {
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"ConsumedCapacity":[],
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"Responses": {
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},
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"UnprocessedKeys": {
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}
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}
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for table_name, table_request in table_batches.iteritems():
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items = []
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keys = table_request['Keys']
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attributes_to_get = table_request.get('AttributesToGet')
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results["Responses"][table_name]=[]
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for key in keys:
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item = dynamodb_backend2.get_item(table_name, key)
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if item:
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item_describe = item.describe_attrs(attributes_to_get)
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results["Responses"][table_name].append(item_describe["Item"])
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results["ConsumedCapacity"].append({
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"CapacityUnits": len(keys),
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"TableName": table_name
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})
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return dynamo_json_dump(results)
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def query(self):
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name = self.body['TableName']
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keys = self.body['KeyConditions']
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hash_key_name, range_key_name = dynamodb_backend2.get_table_keys_name(name)
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if hash_key_name is None:
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er = "'com.amazonaws.dynamodb.v20120810#ResourceNotFoundException"
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return self.error(er)
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hash_key = keys[hash_key_name]['AttributeValueList'][0]
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if len(keys) == 1:
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range_comparison = None
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range_values = []
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else:
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if range_key_name == None:
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er = "com.amazon.coral.validate#ValidationException"
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return self.error(er)
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else:
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range_condition = keys[range_key_name]
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if range_condition:
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range_comparison = range_condition['ComparisonOperator']
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range_values = range_condition['AttributeValueList']
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else:
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range_comparison = None
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range_values = []
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items, last_page = dynamodb_backend2.query(name, hash_key, range_comparison, range_values)
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if items is None:
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er = 'com.amazonaws.dynamodb.v20111205#ResourceNotFoundException'
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return self.error(er)
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result = {
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"Count": len(items),
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"Items": [item.attrs for item in items],
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"ConsumedCapacityUnits": 1,
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}
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# Implement this when we do pagination
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# if not last_page:
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# result["LastEvaluatedKey"] = {
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# "HashKeyElement": items[-1].hash_key,
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# "RangeKeyElement": items[-1].range_key,
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# }
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return dynamo_json_dump(result)
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def scan(self):
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name = self.body['TableName']
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filters = {}
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scan_filters = self.body.get('ScanFilter', {})
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for attribute_name, scan_filter in scan_filters.iteritems():
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# Keys are attribute names. Values are tuples of (comparison, comparison_value)
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comparison_operator = scan_filter["ComparisonOperator"]
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comparison_values = scan_filter.get("AttributeValueList", [])
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filters[attribute_name] = (comparison_operator, comparison_values)
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items, scanned_count, last_page = dynamodb_backend2.scan(name, filters)
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if items is None:
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er = 'com.amazonaws.dynamodb.v20111205#ResourceNotFoundException'
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return self.error(er)
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result = {
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"Count": len(items),
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"Items": [item.attrs for item in items],
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"ConsumedCapacityUnits": 1,
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"ScannedCount": scanned_count
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}
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# Implement this when we do pagination
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# if not last_page:
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# result["LastEvaluatedKey"] = {
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# "HashKeyElement": items[-1].hash_key,
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# "RangeKeyElement": items[-1].range_key,
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# }
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return dynamo_json_dump(result)
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def delete_item(self):
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name = self.body['TableName']
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keys = self.body['Key']
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return_values = self.body.get('ReturnValues', '')
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item = dynamodb_backend2.delete_item(name, keys)
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if item:
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if return_values == 'ALL_OLD':
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item_dict = item.to_json()
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else:
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item_dict = {'Attributes': []}
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item_dict['ConsumedCapacityUnits'] = 0.5
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return dynamo_json_dump(item_dict)
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else:
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er = 'com.amazonaws.dynamodb.v20120810#ConditionalCheckFailedException'
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return self.error(er)
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