### Log viewer/watcher glogg This add-on works similarly to the popular log viewer software called glogg. #### Enables: * Viewing huge files, especially logs, without performance or ram usage loss * Monitoring changes in displayed files and dynamically extending the content * File search * Dynamic extension of search results with changes in files (new entries) Requires @Push enabled for stable and comfortable work Each file is indexed before being displayed and only a part is streamed on demand (50 rows per request when scrolling). Files are not stored in memory. #### Styling Since the extension uses default vaadin components, all used components have been made available for modification via getters. If you want to display the entire log line without text-wrapping, you need to extend your style file vaadin-grid.css about this entry: ``` :host([theme~='log']) [part~='cell']:not([part~='details-cell']) { white-space: break-spaces; } ``` #### Additional configuration - You can disable/hide polling configuration and also search bar. To do that you have to pass configuration to the constructor of the FileViewer ``` FileViewer viewer = new FileViewer(new FileViewerConfig(){ @Override public boolean pollingEnabled() { return false; } @Override public int pollingInterval() { return 1; } @Override public boolean searchViewVisible() { return false; } }); ``` #### Layout structure ``` |---------------------------------------------------------------| | FileViewer - VerticalLayout | | |---------------------------------------------------------| | | | PollingMenuBar - MenuBar | | | |---------------------------------------------------------| | | | FileTabSheet - TabSheet | | | | |---------------------------------------------------| | | | | | FileTab - Div | | | | | | |---------------------------------------------| | | | | | | | FileContentGrid - Grid | | | | | | | |---------------------------------------------| | | | | | | | FileSearchLayout - VerticalLayout | | | | | | | | |---------------------------------------| | | | | | | | | | SearchBarFields - MenuBar | | | | | | | | | |---------------------------------------| | | | | | | | | | SearchResultGrid - Grid | | | | | | | | | |---------------------------------------| | | | | | | | | | | | | | | | | --------------------------------------------| | | | | | |---------------------------------------------------| | | | |---------------------------------------------------------| | |---------------------------------------------------------------| ```