RESTful service to return number of different or missing studies in two archives

[gunterze]

Related #730
swagger.json

{
    "/aets/{aet}/dimse/{externalAET}/diff/{originalAET}/studies/count": {
      "get": {
        "tags": [
          "DIMSE-RS",
          "DIFF-RS"
        ],
        "summary": "Count different Studies",
        "operationId": "CountDifferentStudies",
        "produces": [
          "application/dicom+json",
          "application/json"
        ],
        "parameters": [
          {
            "name": "aet",
            "in": "path",
            "description": "Archive AE Title used as Calling AET for querying for Studies",
            "required": true,
            "type": "string"
          },
          {
            "name": "externalAET",
            "in": "path",
            "description": "AE Title of C-FIND SCP to query for Studies",
            "required": true,
            "type": "string"
          },
          {
            "name": "originalAET",
            "in": "path",
            "description": "AE Title of second C-FIND SCP to query for Studies returned from externalAET",
            "required": true,
            "type": "string"
          },
          {
            "name": "{attributeID}",
            "in": "query",
            "description": "{attributeID}={value}; {attributeID} = {dicomTag} | {dicomKeyword} | {dicomTag}.{attributeID} | {dicomKeyword}.{attributeID}",
            "type": "array",
            "items": {
              "type": "string"
            },
            "collectionFormat": "multi"
          },
          {
            "name": "includefield",
            "in": "query",
            "description": "includefield={attributeID}",
            "type": "array",
            "items": {
              "type": "string"
            },
            "collectionFormat": "multi"
          },
          {
            "name": "comparefield",
            "in": "query",
            "description": "comparefield={attributeID}",
            "type": "array",
            "items": {
              "type": "string"
            },
            "collectionFormat": "multi"
          },
          {
            "name": "fuzzymatching",
            "in": "query",
            "description": "fuzzy semantic matching of person names",
            "type": "boolean",
            "default": false
          }
        ],
        "responses": {
          "200": {
            "description": "successful operation",
            "schema": {
              "required": [
                "different",
                "missing"
              ],
              "properties": {
                "count": {
                  "title": "Number of different studies",
                  "type": "integer"
                },
                "missing": {
                  "title": "Number of missing studies",
                  "type": "integer"
                }
              }
            }
          },
          "404": {
            "description": "External AE Title not found"
          },
          "default": {
            "description": "unexpected error"
          }
        }
      }
    }
}