X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.browsing.ui.common%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fcommon%2FTesters.java;fp=bundles%2Forg.simantics.browsing.ui.common%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fcommon%2FTesters.java;h=acf192d8ea214077a97c31efc6b96e4ed77195cc;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08 diff --git a/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/Testers.java b/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/Testers.java new file mode 100644 index 000000000..acf192d8e --- /dev/null +++ b/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/Testers.java @@ -0,0 +1,104 @@ +/******************************************************************************* + * 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.common; + +import org.simantics.browsing.ui.BuiltinKeys; +import org.simantics.browsing.ui.NodeContext; +import org.simantics.browsing.ui.NodeContext.ConstantKey; +import org.simantics.browsing.ui.NodeQueryManager; +import org.simantics.browsing.ui.Tester; +import org.simantics.browsing.ui.common.node.StandardNodes; + +public final class Testers { + + /** + * Simple pass all tester. + */ + public static final Tester PASS = new Tester() { + @Override + public boolean test(NodeQueryManager manager, NodeContext context) { + return true; + } + @Override + public String toString() { + return "PASS test"; + } + }; + + /** + * Simple fail all tester. + */ + public static final Tester FAIL = new Tester() { + @Override + public boolean test(NodeQueryManager manager, NodeContext context) { + return false; + } + @Override + public String toString() { + return "FAIL test"; + } + }; + + /** + * @param clazz + * @return tester for checking whether node context input is an instance of + * the specified class + */ + public static Tester instanceOfTester(final Class clazz) { + return new Tester() { + @Override + public boolean test(NodeQueryManager manager, NodeContext context) { + return clazz.isInstance(context.getConstant(BuiltinKeys.INPUT)); + } + @Override + public String toString() { + return "class " + clazz.getName() + " test"; + } + }; + } + + public static Tester standardFunctionTester(final Object object) { + return new Tester() { + + @Override + public boolean test(NodeQueryManager manager, NodeContext context) { + Object function = context.getConstant(StandardNodes.FUNCTION); + return object.equals(function); + } + + }; + } + + public static Tester exists(final ConstantKey key) { + return new Tester() { + + @Override + public boolean test(NodeQueryManager manager, NodeContext context) { + return context.getConstant(key) != null; + } + + }; + } + + public static Tester and(final Tester ... testers) { + return new Tester() { + + @Override + public boolean test(NodeQueryManager manager, NodeContext context) { + for(Tester tester : testers) if(!tester.test(manager, context)) return false; + return true; + } + + }; + } + +}