This tool sends data to any tool that requests it. @author Douglas Brown @version 1.0
| 25 | * @version 1.0 |
| 26 | */ |
| 27 | public class DataRefreshTool implements Tool { |
| 28 | private static Map<Data, DataRefreshTool> tools = new HashMap<Data, DataRefreshTool>(); |
| 29 | private Data data; // data source |
| 30 | protected HashSet<Data> moreData = new HashSet<Data>(); |
| 31 | private HashMap<Integer, Dataset> ids = new HashMap<Integer, Dataset>(); |
| 32 | |
| 33 | /** |
| 34 | * Returns a DataRefreshTool for the specified data object. |
| 35 | * |
| 36 | * @param data the data |
| 37 | * @return the tool |
| 38 | */ |
| 39 | public static DataRefreshTool getTool(Data data) { |
| 40 | DataRefreshTool tool = tools.get(data); |
| 41 | if (tool == null) { |
| 42 | tool = new DataRefreshTool(data); |
| 43 | tools.put(data, tool); |
| 44 | } |
| 45 | return tool; |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * Constructs a DataRefreshTool for the specified data object. |
| 50 | * |
| 51 | * @param data the data |
| 52 | */ |
| 53 | private DataRefreshTool(Data data) { |
| 54 | this.data = data; |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | * Sends a job to this tool and specifies a tool to reply to. The job xml |
| 59 | * defines the Data object requesting a refresh ("requestData"). The requestData |
| 60 | * is compared with this tool's Data ("localData") as follows: 1. If the |
| 61 | * requestData ID matches the localData ID, then the localData is sent back to |
| 62 | * the requester. 2. If not, then the requestData ID is compared with the IDs of |
| 63 | * all Data objects in the list returned by |
| 64 | * DataTool.getSelfContainedData(localData). If a match is found, the matching |
| 65 | * Data is sent back to the requester. 3. If not, then the requestData ID is |
| 66 | * compared with the IDs of Datasets in the list returned by |
| 67 | * DataTool.getDatasets(localData). If a match is found, the matching Dataset is |
| 68 | * sent back to the requester. 4. If not, then every Dataset ID in the list |
| 69 | * returned by DataTool.getDatasets(requestData) is compared with the IDs of |
| 70 | * Datasets in the list returned by DataTool.getDatasets(localData). All |
| 71 | * matching Datasets that are found are sent back to the requester. |
| 72 | * |
| 73 | * @param job the Job |
| 74 | * @param replyTo the tool requesting refreshed data |
| 75 | */ |
| 76 | @Override |
| 77 | public void send(Job job, Tool replyTo) { |
| 78 | XMLControlElement control = new XMLControlElement(job.getXML()); |
| 79 | if (control.failedToRead() || (replyTo == null) || !Data.class.isAssignableFrom(control.getObjectClass())) { |
| 80 | return; |
| 81 | } |
| 82 | Data request = (Data) control.loadObject(null, true, true); |
| 83 | // check for matching ID with localData |
| 84 | if (request.getID() == data.getID()) { |
nothing calls this directly
no outgoing calls
no test coverage detected