bundles/org.simantics.document.swt.core/src/org/simantics/document/swt/core/scl/SCL.java

   1 package org.simantics.document.swt.core.scl;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5
   6 import org.simantics.databoard.Bindings;
   7 import org.simantics.db.ReadGraph;
   8 import org.simantics.db.Resource;
   9 import org.simantics.db.WriteGraph;
  10 import org.simantics.db.common.request.WriteRequest;
  11 import org.simantics.db.exception.DatabaseException;
  12 import org.simantics.db.layer0.variable.Variable;
  13 import org.simantics.db.layer0.variable.Variables;
  14 import org.simantics.document.server.handler.AbstractEventHandler;
  15 import org.simantics.document.server.handler.EventHandler;
  16 import org.simantics.document.server.handler.WriteEventHandler;
  17 import org.simantics.document.server.io.CommandContext;
  18 import org.simantics.document.server.io.CommandResult;
  19 import org.simantics.document.server.serverResponse.ServerResponse;
  20 import org.simantics.document.swt.core.SWTViews;
  21 import org.simantics.document.swt.core.bean.ColumnBean;
  22 import org.simantics.document.swt.core.bean.ColumnsBean;
  23 import org.simantics.scl.runtime.SCLContext;
  24 import org.simantics.scl.runtime.function.Function1;
  25 import org.simantics.scl.runtime.reporting.SCLReportingHandler;
  26 import org.simantics.scl.runtime.tuple.Tuple0;
  27 import org.simantics.ui.selection.WorkbenchSelectionElement;
  28 import org.simantics.ui.selection.WorkbenchSelectionUtils;
  29
  30 public class SCL {
  31
  32     public static final String SCL_VALUE_PROPERTY = "sclValueProperty";
  33
  34     public static EventHandler eventHandler(final Function1<Object, Object> fn) {
  35         return new EventHandler() {
  36
  37                         @Override
  38                         protected ServerResponse handle(ReadGraph graph, CommandContext parameters) throws DatabaseException {
  39
  40                             final SCLReportingHandler printer = (SCLReportingHandler)SCLContext.getCurrent().get(SCLReportingHandler.REPORTING_HANDLER);
  41                                 graph.async(new WriteRequest() {
  42
  43                                         @Override
  44                                         public void perform(WriteGraph graph) throws DatabaseException {
  45                                             SCLContext sclContext = SCLContext.getCurrent();
  46                                             Object oldPrinter = sclContext.put(SCLReportingHandler.REPORTING_HANDLER, printer);
  47                                                 Object oldGraph = sclContext.put("graph", graph);
  48                                                 try {
  49                                                         fn.apply(Tuple0.INSTANCE);
  50                                                 } finally {
  51                                                         sclContext.put(SCLReportingHandler.REPORTING_HANDLER, oldPrinter);
  52                                                         sclContext.put("graph", oldGraph);
  53                                                 }
  54                                         }
  55
  56                                 });
  57
  58                                 return null;
  59
  60                         }
  61
  62                 };
  63     }
  64
  65     public static String getURI(ReadGraph graph, Variable variable) throws DatabaseException {
  66         return variable.getURI(graph);
  67     }
  68
  69     public static String propertyDisplayValue(ReadGraph graph, Variable variable, String property) throws DatabaseException {
  70         Variable var = variable.getProperty(graph, property);
  71         Variable var2 = var.getProperty(graph, Variables.DISPLAY_VALUE);
  72         return var2.getValue(graph);
  73     }
  74
  75     public static AbstractEventHandler propertyValueSetter(ReadGraph graph, Variable variable, String property) throws DatabaseException {
  76         String uri = variable.getURI(graph);
  77         return new ValueSetter(uri, property);
  78     }
  79
  80     public static String propertyGetter(ReadGraph graph, Variable variable) throws DatabaseException {
  81         String value = variable.getPossiblePropertyValue(graph, SCL_VALUE_PROPERTY);
  82         return value;
  83     }
  84
  85     static class ValueSetter extends WriteEventHandler {
  86
  87         private String varUri;
  88         private String property;
  89
  90         public ValueSetter(String varUri, String property) {
  91             this.varUri = varUri;
  92             this.property = property;
  93         }
  94
  95         @Override
  96         protected CommandResult handle(WriteGraph graph, CommandContext parameters) throws DatabaseException {
  97             Variable variable = Variables.getVariable(graph, varUri);
  98             Variable var = variable.getPossibleProperty(graph, property);
  99             Variable var2 = var.getPossibleProperty(graph, Variables.DISPLAY_VALUE);
 100             var2.setValue(graph, parameters.getString("text"), Bindings.STRING);
 101             return null;
 102         }
 103     };
 104
 105     @SuppressWarnings("unchecked")
 106     public static List<WorkbenchSelectionElement> decodeWSES(String key) {
 107         return (List<WorkbenchSelectionElement>)SWTViews.decode(key);
 108     }
 109
 110     public static Resource wseResource(ReadGraph graph, WorkbenchSelectionElement wse) throws DatabaseException {
 111         return WorkbenchSelectionUtils.getPossibleResource(wse);
 112     }
 113
 114     public static ColumnsBean columnsBean(ReadGraph graph, Resource value) throws DatabaseException {
 115         return graph.getValue(value, ColumnsBean.BINDING);
 116     }
 117
 118     public static List<ColumnBean> columnBeans(ColumnsBean bean) {
 119         ArrayList<ColumnBean> result = new ArrayList<>();
 120         for(ColumnBean b : bean.columns) result.add(b);
 121         return result;
 122     }
 123
 124     public static String columnBeanKey(ColumnBean bean) {
 125         return bean.key;
 126     }
 127
 128     public static String columnBeanLabel(ColumnBean bean) {
 129         return bean.label;
 130     }
 131
 132 }