Introduced DataCollectionEntry

[MatousJobanek]

This is the replacement of TableEntry.
Let's consider the previous data for table entry - the idea is to store every item of the table body as a DataItem in the DataCollectionEntry. Every item also contains a list of labels that brings additional semantic. In our case the labels represent the headers - both row header the column header - this is the reason for the list of labels. Every label may also contain some parent label - a solution for a colspan.

As the new entry contains a list of data items with associated labels it could be quite difficult to parse it. This is the reason why I have introduced a new method for all Entries: outputEntry()

In the case of DataCollectionEntry the method outputEntry() transforms all data items and labels, so the data are sorted and divided by the specified labels.

Unfortunately, there is one open question - if we used this way of transforming DataCollectionEntry then when one DataItem has more labels we need would need to create some hierarchy the labels setting them as parent labels. In other words - which label (first or second one) should be set as parent label of the other one.
Currently, I take the second label and set it as the highest parent label of the first one. Then it take third and set is as highest parent label of the first one (on top of the already added second label) etc... https://github.com/arquillian/arquillian-reporter/compare/master...MatousJobanek:data-structure?expand=1#diff-ef67db943c19836a7a3a82d233c88b8dR52
But I'm not sure if this can be applied in all cases...

The JSON for this table:

would be:

  {
    "entryName": {
      "value": "Networks statistics"
    },
    "subCollections": [
      {
        "labelName": {
          "value": "Adapter"
        },
        "subCollections": [
          {
            "labelName": {
              "value": "eth0"
            },
            "subCollections": [
              {
                "labelName": {
                  "value": "rx_bytes"
                },
                "subCollections": [
                  {
                    "labelName": {
                      "value": "Before Test"
                    },
                    "subCollections": [],
                    "dataList": [
                      {
                        "dataValue": {
                          "content": {
                            "value": "258 B"
                          }
                        }
                      }
                    ]
                  },
                  {
                    "labelName": {
                      "value": "After Test"
                    },
                    "subCollections": [],
                    "dataList": [
                      {
                        "dataValue": {
                          "content": {
                            "value": "258 B"
                          }
                        }
                      }
                    ]
                  },
                  {
                    "labelName": {
                      "value": "Use"
                    },
                    "subCollections": [],
                    "dataList": [
                      {
                        "dataValue": {
                          "content": {
                            "value": "0 B"
                          }
                        }
                      }
                    ]
                  }
                ],
                "dataList": []
              },
              {
                "labelName": {
                  "value": "tx_bytes"
                },
                "subCollections": [
                  {
                    "labelName": {
                      "value": "Before Test"
                    },
                    "subCollections": [],
                    "dataList": [
                      {
                        "dataValue": {
                          "content": {
                            "value": "258 B"
                          }
                        }
                      }
                    ]
                  },
                  {
                    "labelName": {
                      "value": "After Test"
                    },
                    "subCollections": [],
                    "dataList": [
                      {
                        "dataValue": {
                          "content": {
                            "value": "258 B"
                          }
                        }
                      }
                    ]
                  },
                  {
                    "labelName": {
                      "value": "Use"
                    },
                    "subCollections": [],
                    "dataList": [
                      {
                        "dataValue": {
                          "content": {
                            "value": "0 B"
                          }
                        }
                      }
                    ]
                  }
                ],
                "dataList": []
              }
            ],
            "dataList": []
          },
          {
            "labelName": {
              "value": "Total"
            },
            "subCollections": [
              {
                "labelName": {
                  "value": "rx_bytes"
                },
                "subCollections": [
                  {
                    "labelName": {
                      "value": "Before Test"
                    },
                    "subCollections": [],
                    "dataList": [
                      {
                        "dataValue": {
                          "content": {
                            "value": "258 B"
                          }
                        }
                      }
                    ]
                  },
                  {
                    "labelName": {
                      "value": "After Test"
                    },
                    "subCollections": [],
                    "dataList": [
                      {
                        "dataValue": {
                          "content": {
                            "value": "258 B"
                          }
                        }
                      }
                    ]
                  },
                  {
                    "labelName": {
                      "value": "Use"
                    },
                    "subCollections": [],
                    "dataList": [
                      {
                        "dataValue": {
                          "content": {
                            "value": "0 B"
                          }
                        }
                      }
                    ]
                  }
                ],
                "dataList": []
              },
              {
                "labelName": {
                  "value": "tx_bytes"
                },
                "subCollections": [
                  {
                    "labelName": {
                      "value": "Before Test"
                    },
                    "subCollections": [],
                    "dataList": [
                      {
                        "dataValue": {
                          "content": {
                            "value": "258 B"
                          }
                        }
                      }
                    ]
                  },
                  {
                    "labelName": {
                      "value": "After Test"
                    },
                    "subCollections": [],
                    "dataList": [
                      {
                        "dataValue": {
                          "content": {
                            "value": "258 B"
                          }
                        }
                      }
                    ]
                  },
                  {
                    "labelName": {
                      "value": "Use"
                    },
                    "subCollections": [],
                    "dataList": [
                      {
                        "dataValue": {
                          "content": {
                            "value": "0 B"
                          }
                        }
                      }
                    ]
                  }
                ],
                "dataList": []
              }
            ],
            "dataList": []
          }
        ],
        "dataList": []
      }
    ]
  }

[MatousJobanek]

The code in Cube (using the API builder) looks like this:
https://github.com/MatousJobanek/arquillian-cube/blob/data-collection/docker/reporter/src/main/java/org/arquillian/cube/docker/impl/client/reporter/TakeDockerEnvironment.java