| /******************************************************************************* |
| * Copyright (c) 2014 Christian Pontesegger and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * Contributors: |
| * Christian Pontesegger - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ease.lang.groovy; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Method; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.ease.Logger; |
| import org.eclipse.ease.modules.EnvironmentModule; |
| import org.eclipse.ease.modules.IEnvironment; |
| import org.eclipse.ease.modules.ModuleHelper; |
| import org.eclipse.ease.tools.StringTools; |
| |
| public class GroovyCodeFactory extends org.eclipse.ease.AbstractCodeFactory { |
| |
| public static List<String> RESERVED_KEYWORDS = new ArrayList<>(); |
| |
| static { |
| RESERVED_KEYWORDS.add("abstract"); |
| RESERVED_KEYWORDS.add("as"); |
| RESERVED_KEYWORDS.add("assert"); |
| RESERVED_KEYWORDS.add("boolean"); |
| RESERVED_KEYWORDS.add("break"); |
| RESERVED_KEYWORDS.add("byte"); |
| RESERVED_KEYWORDS.add("case"); |
| RESERVED_KEYWORDS.add("catch"); |
| RESERVED_KEYWORDS.add("char"); |
| RESERVED_KEYWORDS.add("class"); |
| RESERVED_KEYWORDS.add("const"); |
| RESERVED_KEYWORDS.add("continue"); |
| RESERVED_KEYWORDS.add("def"); |
| RESERVED_KEYWORDS.add("default"); |
| RESERVED_KEYWORDS.add("do"); |
| RESERVED_KEYWORDS.add("double"); |
| RESERVED_KEYWORDS.add("else"); |
| RESERVED_KEYWORDS.add("enum"); |
| RESERVED_KEYWORDS.add("extends"); |
| RESERVED_KEYWORDS.add("false"); |
| RESERVED_KEYWORDS.add("final"); |
| RESERVED_KEYWORDS.add("finally"); |
| RESERVED_KEYWORDS.add("float"); |
| RESERVED_KEYWORDS.add("for"); |
| RESERVED_KEYWORDS.add("goto"); |
| RESERVED_KEYWORDS.add("if"); |
| RESERVED_KEYWORDS.add("implements"); |
| RESERVED_KEYWORDS.add("import"); |
| RESERVED_KEYWORDS.add("in"); |
| RESERVED_KEYWORDS.add("instanceof"); |
| RESERVED_KEYWORDS.add("int"); |
| RESERVED_KEYWORDS.add("interface"); |
| RESERVED_KEYWORDS.add("long"); |
| RESERVED_KEYWORDS.add("native"); |
| RESERVED_KEYWORDS.add("new"); |
| RESERVED_KEYWORDS.add("null"); |
| RESERVED_KEYWORDS.add("package"); |
| RESERVED_KEYWORDS.add("private"); |
| RESERVED_KEYWORDS.add("protected"); |
| RESERVED_KEYWORDS.add("public"); |
| RESERVED_KEYWORDS.add("return"); |
| RESERVED_KEYWORDS.add("short"); |
| RESERVED_KEYWORDS.add("static"); |
| RESERVED_KEYWORDS.add("strictfp"); |
| RESERVED_KEYWORDS.add("super"); |
| RESERVED_KEYWORDS.add("switch"); |
| RESERVED_KEYWORDS.add("synchronized"); |
| RESERVED_KEYWORDS.add("this"); |
| RESERVED_KEYWORDS.add("threadsafe"); |
| RESERVED_KEYWORDS.add("throw"); |
| RESERVED_KEYWORDS.add("throws"); |
| RESERVED_KEYWORDS.add("transient"); |
| RESERVED_KEYWORDS.add("true"); |
| RESERVED_KEYWORDS.add("try"); |
| RESERVED_KEYWORDS.add("void"); |
| RESERVED_KEYWORDS.add("volatile"); |
| RESERVED_KEYWORDS.add("while"); |
| } |
| |
| private static boolean isValidMethodName(final String methodName) { |
| return GroovyHelper.isSaveName(methodName) && !RESERVED_KEYWORDS.contains(methodName); |
| } |
| |
| @Override |
| public String classInstantiation(final Class<?> clazz, final String[] parameters) { |
| final StringBuilder code = new StringBuilder(); |
| code.append("import "); |
| code.append(clazz.getName()); |
| code.append(";\n"); |
| |
| code.append("new "); |
| code.append(clazz.getName()); |
| code.append("("); |
| |
| if (parameters != null) { |
| for (final String parameter : parameters) { |
| code.append('"'); |
| code.append(parameter); |
| code.append('"'); |
| code.append(", "); |
| } |
| if (parameters.length > 0) |
| code.replace(code.length() - 2, code.length(), ""); |
| } |
| |
| code.append(")"); |
| |
| return code.toString(); |
| } |
| |
| @Override |
| protected String getNullString() { |
| return "null"; |
| } |
| |
| @Override |
| public String getSaveVariableName(final String variableName) { |
| return GroovyHelper.getSaveName(variableName); |
| } |
| |
| private StringBuilder verifyParameters(final List<Parameter> parameters) { |
| final StringBuilder data = new StringBuilder(); |
| |
| // FIXME currently not supported |
| // if (!parameters.isEmpty()) { |
| // Parameter parameter = parameters.get(parameters.size() - 1); |
| // data.append("\tif (typeof " + parameter.getName() + " === \"undefined\") {\n"); |
| // if (parameter.isOptional()) { |
| // data.append("\t\t" + parameter.getName() + " = " + getDefaultValue(parameter) + ";\n"); |
| // } else { |
| // data.append("\t\tthrow new java.lang.RuntimeException('Parameter " + parameter.getName() + " is not optional');\n"); |
| // |
| // } |
| // data.append(verifyParameters(parameters.subList(0, parameters.size() - 1))); |
| // data.append("\t}\n"); |
| // } |
| |
| return data; |
| } |
| |
| @Override |
| protected String createFieldWrapper(IEnvironment environment, String identifier, Field field) { |
| final StringBuilder groovyCode = new StringBuilder(); |
| |
| groovyCode.append(field.getName()); |
| groovyCode.append(" = "); |
| groovyCode.append(identifier); |
| groovyCode.append('.'); |
| groovyCode.append(field.getName()); |
| groovyCode.append(';'); |
| groovyCode.append(StringTools.LINE_DELIMITER); |
| |
| return groovyCode.toString(); |
| } |
| |
| @Override |
| public String createFunctionWrapper(final IEnvironment environment, final String moduleVariable, final Method method) { |
| |
| final String methodId = ((EnvironmentModule) environment).registerMethod(method); |
| |
| final StringBuilder groovyCode = new StringBuilder(); |
| |
| // parse parameters |
| final List<Parameter> parameters = ModuleHelper.getParameters(method); |
| |
| // build parameter string |
| final StringBuilder parameterList = new StringBuilder(); |
| for (final Parameter parameter : parameters) |
| parameterList.append(", ").append(toSafeName(parameter.getName())); |
| |
| if (parameterList.length() > 2) |
| parameterList.delete(0, 2); |
| |
| final StringBuilder body = new StringBuilder(); |
| // insert parameter checks |
| body.append(verifyParameters(parameters)); |
| |
| // insert hooked pre execution code |
| body.append("\t").append(EnvironmentModule.getWrappedVariableName(environment)).append(".preMethodCallback('").append(methodId).append("'") |
| .append(parameters.isEmpty() ? "" : ", ").append(parameterList).append(");").append(StringTools.LINE_DELIMITER); |
| |
| // insert method call |
| body.append("\t").append(RESULT_NAME).append(" = ").append(moduleVariable).append(".").append(method.getName()).append("("); |
| body.append(parameterList); |
| body.append(");").append(StringTools.LINE_DELIMITER); |
| |
| // insert hooked post execution code |
| body.append("\t").append(EnvironmentModule.getWrappedVariableName(environment)).append(".postMethodCallback('").append(methodId).append("', ") |
| .append(RESULT_NAME).append(");").append(StringTools.LINE_DELIMITER); |
| |
| // insert return statement |
| body.append("\treturn ").append(RESULT_NAME).append(";").append(StringTools.LINE_DELIMITER); |
| |
| // build function declarations |
| for (final String name : getMethodNames(method)) { |
| if (!isValidMethodName(name)) { |
| Logger.error(PluginConstants.PLUGIN_ID, |
| "The method name \"" + name + "\" from the module \"" + moduleVariable + "\" can not be wrapped because it's name is reserved"); |
| |
| } else if (!name.isEmpty()) { |
| groovyCode.append(name).append(" = { ").append(parameterList).append(" ->").append(StringTools.LINE_DELIMITER); |
| groovyCode.append(body); |
| groovyCode.append("}").append(StringTools.LINE_DELIMITER); |
| } |
| } |
| |
| return groovyCode.toString(); |
| } |
| |
| @Override |
| protected Object getLanguageIdentifier() { |
| return "Groovy"; |
| } |
| |
| @Override |
| protected String toSafeName(String name) { |
| while (RESERVED_KEYWORDS.contains(name)) |
| name = name + "_"; |
| |
| return name; |
| } |
| } |