| /******************************************************************************* |
| * Copyright (c) 2005-2014 Obeo |
| * |
| * 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: |
| * Obeo - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.sirius.query.legacy.gen.template.scripts.imports.services; |
| |
| import org.eclipse.sirius.query.legacy.ecore.factories.FactoryException; |
| import org.eclipse.sirius.query.legacy.gen.template.TemplateSyntaxException; |
| import org.eclipse.sirius.query.legacy.gen.template.eval.ENode; |
| import org.eclipse.sirius.query.legacy.gen.template.eval.ENodeCastException; |
| import org.eclipse.sirius.query.legacy.gen.template.eval.ENodeException; |
| import org.eclipse.sirius.query.legacy.gen.template.eval.ENodeIterator; |
| import org.eclipse.sirius.query.legacy.gen.template.eval.ENodeList; |
| import org.eclipse.sirius.query.legacy.gen.template.eval.LaunchManager; |
| import org.eclipse.sirius.query.legacy.gen.template.expressions.TemplateExpression; |
| import org.eclipse.sirius.query.legacy.gen.template.scripts.IScript; |
| import org.eclipse.sirius.query.legacy.tools.strings.Int2; |
| |
| /** |
| * Request services. |
| * |
| * |
| */ |
| public class RequestServices { |
| |
| /** |
| * The script. |
| */ |
| protected IScript script; |
| |
| /** |
| * Constructor. |
| * |
| * @param script |
| * is the script |
| */ |
| public RequestServices(IScript script) { |
| this.script = script; |
| } |
| |
| /** |
| * Evaluates the given expression on all the elements of the current node |
| * and keep the elements validating the condition. |
| * |
| * @param current |
| * is the current node of generation |
| * @param call |
| * is the condition |
| * @return valid elements |
| * @throws FactoryException |
| * @throws ENodeCastException |
| * @throws TemplateSyntaxException |
| * @deprecated |
| */ |
| @Deprecated |
| public ENode select(ENode current, String call) throws FactoryException, ENodeCastException, TemplateSyntaxException { |
| return select(current, call, new ENode(true, current)); |
| } |
| |
| /** |
| * Evaluates the given expression on all the elements of the current node |
| * and keep the elements validating the given value. |
| * |
| * @param current |
| * is the current node of generation |
| * @param call |
| * is the expression to apply |
| * @param value |
| * is the value of the elements to keep |
| * @return valid elements |
| * @throws FactoryException |
| * @throws ENodeCastException |
| * @throws TemplateSyntaxException |
| * @deprecated |
| */ |
| @Deprecated |
| public ENode select(ENode current, String call, ENode value) throws FactoryException, ENodeCastException, TemplateSyntaxException { |
| int pos = getBegin(); |
| call = call.replaceAll("'", "\\\""); //$NON-NLS-1$ //$NON-NLS-2$ |
| TemplateExpression expression = TemplateExpression.fromString(computeCall(pos, call), new Int2(pos, pos + call.length()), script); |
| return select(current, expression, value); |
| } |
| |
| private ENode select(ENode current, TemplateExpression call, ENode value) throws FactoryException, ENodeCastException { |
| if (current.isList()) { |
| ENodeList list = current.getList(); |
| ENodeList res = new ENodeList(); |
| ENodeIterator it = list.iterator(); |
| while (it.hasNext()) { |
| res.add(select(it.next(), call, value)); |
| } |
| return new ENode(res, current); |
| } else { |
| try { |
| ENode result = call.evaluate(current, script, LaunchManager.create("run", true)); //$NON-NLS-1$ |
| if (result.equals(value)) { |
| return current; |
| } else { |
| return new ENode(ENode.EMPTY, current); |
| } |
| } catch (ENodeException e) { |
| return new ENode(ENode.EMPTY, current); |
| } |
| } |
| } |
| |
| /** |
| * Evaluates the given expression on all the elements of the current node |
| * and delete the elements validating the condition. |
| * |
| * @param current |
| * is the current node of generation |
| * @param call |
| * is the expression to apply |
| * @return valid elements |
| * @throws FactoryException |
| * @throws ENodeCastException |
| * @throws TemplateSyntaxException |
| * @deprecated |
| */ |
| @Deprecated |
| public ENode delete(ENode current, String call) throws FactoryException, ENodeCastException, TemplateSyntaxException { |
| return delete(current, call, new ENode(true, current)); |
| } |
| |
| /** |
| * Evaluates the given expression on all the elements of the current node |
| * and delete the elements validating the given value. |
| * |
| * @param current |
| * is the current node of generation |
| * @param call |
| * is the expression to apply |
| * @param value |
| * is the value of the elements to delete |
| * @return valid elements |
| * @throws FactoryException |
| * @throws ENodeCastException |
| * @throws TemplateSyntaxException |
| * @deprecated |
| */ |
| @Deprecated |
| public ENode delete(ENode current, String call, ENode value) throws FactoryException, ENodeCastException, TemplateSyntaxException { |
| int pos = getBegin(); |
| call = call.replaceAll("'", "\\\""); //$NON-NLS-1$ //$NON-NLS-2$ |
| TemplateExpression expression = TemplateExpression.fromString(computeCall(pos, call), new Int2(pos, pos + call.length()), script); |
| return delete(current, expression, value); |
| } |
| |
| private ENode delete(ENode current, TemplateExpression call, ENode value) throws FactoryException, ENodeCastException { |
| if (current.isList()) { |
| ENodeList list = current.getList(); |
| ENodeList res = new ENodeList(); |
| ENodeIterator it = list.iterator(); |
| while (it.hasNext()) { |
| res.add(delete(it.next(), call, value)); |
| } |
| return new ENode(res, current); |
| } else { |
| try { |
| ENode result = call.evaluate(current, script, LaunchManager.create("run", true)); //$NON-NLS-1$ |
| if (!result.equals(value)) { |
| return current; |
| } else { |
| return new ENode(ENode.EMPTY, current); |
| } |
| } catch (ENodeException e) { |
| return new ENode(ENode.EMPTY, current); |
| } |
| } |
| } |
| |
| /** |
| * Evaluates the given text as an acceleo expression. |
| * |
| * @param current |
| * is the current node of generation |
| * @param call |
| * is the expression to evaluate |
| * @return evaluation |
| * @throws TemplateSyntaxException |
| * @throws FactoryException |
| */ |
| public ENode evaluate(ENode current, String call) throws TemplateSyntaxException, FactoryException { |
| int pos = getBegin(); |
| call = call.replaceAll("'", "\\\""); //$NON-NLS-1$ //$NON-NLS-2$ |
| TemplateExpression expression = TemplateExpression.fromString(computeCall(pos, call), new Int2(pos, pos + call.length()), script); |
| try { |
| return expression.evaluate(current, script, LaunchManager.create("run", true)); //$NON-NLS-1$ |
| } catch (ENodeException e) { |
| return new ENode(ENode.EMPTY, current); |
| } |
| } |
| |
| private int getBegin() { |
| Int2 pos = (Int2) script.contextPeek(IScript.ARGUMENT_POSITION); |
| if (pos != null) { |
| return pos.b(); |
| } else { |
| return 0; |
| } |
| } |
| |
| private String computeCall(int begin, String call) { |
| if (begin > 0) { |
| StringBuffer result = new StringBuffer(""); //$NON-NLS-1$ |
| for (int i = 0; i < begin; i++) { |
| result.append(' '); |
| } |
| result.append(call); |
| return result.toString(); |
| } else { |
| return call; |
| } |
| } |
| |
| } |
