X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.browsing.ui.graph.impl%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fgraph%2Fimpl%2FVariableModifier.java;fp=bundles%2Forg.simantics.browsing.ui.graph.impl%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fgraph%2Fimpl%2FVariableModifier.java;h=aed22e47ccec51188212bf8acfda81e12e9521dd;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08 diff --git a/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/VariableModifier.java b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/VariableModifier.java new file mode 100644 index 000000000..aed22e47c --- /dev/null +++ b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/VariableModifier.java @@ -0,0 +1,280 @@ +/******************************************************************************* + * Copyright (c) 2007, 2010 Association for Decentralized Information Management + * in Industry THTH ry. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * VTT Technical Research Centre of Finland - initial API and implementation + *******************************************************************************/ +package org.simantics.browsing.ui.graph.impl; + +import org.simantics.browsing.ui.content.Labeler.Modifier; +import org.simantics.databoard.Bindings; +import org.simantics.databoard.Datatypes; +import org.simantics.databoard.binding.Binding; +import org.simantics.databoard.binding.NumberBinding; +import org.simantics.databoard.binding.StringBinding; +import org.simantics.databoard.binding.error.BindingException; +import org.simantics.databoard.binding.mutable.MutableStringBinding; +import org.simantics.databoard.parser.repository.DataTypeSyntaxError; +import org.simantics.databoard.parser.repository.DataValueRepository; +import org.simantics.databoard.primitives.MutableString; +import org.simantics.databoard.type.Datatype; +import org.simantics.databoard.type.NumberType; +import org.simantics.databoard.units.IUnitConverter; +import org.simantics.databoard.util.Range; +import org.simantics.db.ReadGraph; +import org.simantics.db.RequestProcessor; +import org.simantics.db.Resource; +import org.simantics.db.Session; +import org.simantics.db.UndoContext; +import org.simantics.db.WriteGraph; +import org.simantics.db.common.request.ReadRequest; +import org.simantics.db.common.request.WriteRequest; +import org.simantics.db.exception.DatabaseException; +import org.simantics.db.layer0.util.PrimitiveValueParser; +import org.simantics.db.layer0.variable.InputValidator; +import org.simantics.db.layer0.variable.InputValidatorFactory; +import org.simantics.db.layer0.variable.Variable; +import org.simantics.db.layer0.variable.VariableWrite; +import org.simantics.db.layer0.variable.Variables; +import org.simantics.scl.runtime.function.Function1; +import org.simantics.utils.datastructures.Callback; +import org.simantics.utils.format.FormattingUtils; +import org.simantics.utils.ui.ErrorLogger; + +/** + * @author Tuukka Lehtonen + */ +public class VariableModifier implements Modifier { + + final protected Session session; + final protected UndoContext undoContext; + final protected Variable variable; + final protected String targetUnit; + + private String initialValue; + protected Throwable modifierFailed; + private Datatype datatype; + protected Binding binding; + protected InputValidator variableInputValidator; + + public VariableModifier(RequestProcessor processor, Variable variable) { + this(processor, variable, null); + } + + public VariableModifier(RequestProcessor processor, Variable variable, String targetUnit) { + this.variable = variable; + this.session = processor.getSession(); + this.undoContext = null; + this.targetUnit = targetUnit; + + initializeModifier(processor); + } + + public VariableModifier(RequestProcessor processor, UndoContext undoContext, Variable variable, String targetUnit) { + this.variable = variable; + this.undoContext = undoContext; + this.session = processor.getSession(); + this.targetUnit = targetUnit; + + initializeModifier(processor); + } + + protected void initializeModifier(RequestProcessor processor) { + try { + processor.syncRequest(new ReadRequest() { + @Override + public void run(ReadGraph graph) throws DatabaseException { + String expression = variable.getPossiblePropertyValue(graph, Variables.EXPRESSION); + if(expression == null) { + datatype = variable.getPossibleDatatype(graph); + if (datatype == null) { + // Deprecated. + // This is here for some backwards compatibility. + datatype = variable.getInterface(graph, Datatype.class); + if (datatype == null) + throw new org.simantics.db.exception.BindingException("no datatype for variable " + variable, null); + } + initialValue = getInitialValue(graph, datatype); + binding = Bindings.getBinding(datatype); + initializeValidator(graph, variable); + } + else { + initialValue = "= " + expression; + binding = Bindings.STRING; + datatype = Datatypes.STRING; + } + } + }); + } catch (DatabaseException e) { + ErrorLogger.defaultLogError("Modifier initialization failed, see exception for details.", e); + modifierFailed = e; + } + } + + protected void initializeValidator(ReadGraph graph, Variable var) throws DatabaseException { + //System.out.println(var.getURI(graph)); + + Resource resource = var.getPossibleRepresents(graph); +// if (resource != null) +// System.out.println("represents: " + graph.getPossibleURI(resource)); + + Resource pr = variable.getPossiblePredicateResource(graph); + +// Variable predicate = variable.getPossiblePropertyValue(graph, Variables.PREDICATE); +// if (predicate != null) { +// Resource pr = predicate.getPropertyValue(graph, Variables.REPRESENTS); + if (pr != null) + variableInputValidator = tryInputValidatorFactory(graph, var, resource, pr); +// } + + if (variableInputValidator == null) { + final Function1 validator = variable.getPossiblePropertyValue(graph, Variables.INPUT_VALIDATOR); + if (validator != null) + variableInputValidator = new InputValidator() { + + @Override + public String isValid(Object newValue) { + return validator.apply((String)newValue); + } + }; + } + + if (variableInputValidator == null) { + Variable parent = variable.getParent(graph); + if (parent != null) { + Resource parentResource = parent.getPossibleRepresents(graph); + if (parentResource != null) + variableInputValidator = tryInputValidatorFactory(graph, var, resource, parentResource); + } + } + + if (variableInputValidator == null) + variableInputValidator = var.getInterface(graph, InputValidator.class); + + } + + private InputValidator tryInputValidatorFactory(ReadGraph graph, Variable var, Resource varRepresents, Resource r) throws DatabaseException { + //System.out.println("tryInputValidatorFactory(" + var.getURI(graph) + ", " + NameUtils.getSafeName(graph, varRepresents) + ", " + NameUtils.getSafeName(graph, r) + ")"); + InputValidatorFactory validatorFactory = graph.getPossibleAdapter(r, InputValidatorFactory.class); + if (validatorFactory == null) + return null; + //System.out.println("got validator factory: " + validatorFactory); + return validatorFactory.create(graph, var); + } + + protected void doModify(final String label) { + if(label.startsWith("=")) { + session.asyncRequest(new WriteRequest() { + @Override + public void perform(WriteGraph graph) throws DatabaseException { + variable.setPropertyValue(graph, Variables.EXPRESSION, + label.substring(1).trim()); + } + }); + } + else { + if(initialValue.startsWith("=")) + try { + session.syncRequest(new WriteRequest() { + @Override + public void perform(WriteGraph graph) throws DatabaseException { + variable.setPropertyValue(graph, Variables.EXPRESSION, null); + } + }); + } catch (DatabaseException e) { + e.printStackTrace(); + } + session.asyncRequest(new VariableWrite(variable, label, null, targetUnit), new Callback() { + @Override + public void run(DatabaseException parameter) { + if (parameter != null) + ErrorLogger.defaultLogError(parameter); + else + modifySuccessful(); + } + }); + } + } + + protected void modifySuccessful() { + } + + protected String getInitialValue(ReadGraph graph, Datatype dataType) throws DatabaseException { + // TODO: more generic support through DataValuePrinter + Object value = variable.getPossibleValue(graph); + if(value == null) return ""; + String unit = Variables.getPossibleUnit(graph, variable); + //String unit = variable.getPossiblePropertyValue(graph, Variables.UNIT); + if(value instanceof Double && unit != null && targetUnit != null) { + IUnitConverter converter = VariableWrite.converter(unit, targetUnit); + value = converter.convert((Double)value); + } + return FormattingUtils.US.engineeringFormat(value); + } + + @Override + public String getValue() { + return initialValue; + } + + @Override + public String isValid(String label) { + if (label.startsWith("=")) + return null; + + if (modifierFailed != null) + return "Could not resolve validator for this value, modification denied. Reason: " + modifierFailed.getMessage(); + + if (variableInputValidator != null) + return variableInputValidator.isValid(label); + + try { + if (binding instanceof StringBinding) { + // Use the binding to validate strings since they might have + // mime-types and/or patterns attached. + if (binding instanceof MutableStringBinding) { + binding.assertInstaceIsValid(new MutableString(label)); + } else { + binding.assertInstaceIsValid(label); + } + } else { + if (binding instanceof NumberBinding) { + // Numbers are always parsed in US locale, although both ',' and + // '.' are accepted as decimal separators. + label = label.replace(",", "."); + //Object value = binding.parseValue(label, new DataValueRepository()); + Object value = PrimitiveValueParser.parse(label, datatype); + NumberType numberType = (NumberType) datatype; + Range range = numberType.getRange(); + if (range != null && !range.contains((Number) value)) + return "Value is not in range " + range; + } else { + binding.parseValue(label, new DataValueRepository()); + } + } + return null; + } catch (IllegalArgumentException e) { + // Parsing failed. + return e.getLocalizedMessage(); + } catch (DataTypeSyntaxError e) { + // Failed to parse label with binding + return e.getLocalizedMessage(); + } catch (BindingException e) { + return e.getLocalizedMessage(); + } + } + + @Override + public final void modify(String label) { + if (modifierFailed != null) + // Should never end up here, isValid should prevent it. + throw new Error("modifier failed: " + modifierFailed.getMessage()); + doModify(label); + } + +};