Java tutorial
/* * Copyright 2014 Axiomine * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.axiomine.largecollections.generator; import java.io.File; import java.util.List; import org.apache.commons.io.FileUtils; import org.apache.commons.lang.StringUtils; public class GeneratorPrimitiveSet { /* * Sample invocation * java GeneratorPrimitivePrimitive com.axiomine.largecollections - com.axiomine.largecollections.functions com.axiomine.largecollections.functions Integer Integer */ public static void main(String[] args) throws Exception { //Package of the new class you are generating Ex. com.mypackage String MY_PACKAGE = args[0]; //Any custom imports you need (: seperated). Use - if no custom imports are included //Ex. java.util.*:java.lang.Random String CUSTOM_IMPORTS = args[1].equals("-") ? "" : args[1]; //Package of your Key serializer class. Use com.axiomine.bigcollections.functions String T = args[2]; String tCls = T; if (tCls.equals("byte[]")) { tCls = "BytesArray"; } String CLASS_NAME = tCls + "Set"; File root = new File(""); File outFile = new File(root.getAbsolutePath() + "/src/main/java/" + MY_PACKAGE.replaceAll("\\.", "/") + "/" + CLASS_NAME + ".java"); if (outFile.exists()) { System.out.println(outFile.getAbsolutePath() + " already exists. Please delete it and try again"); } { String[] imports = null; String importStr = ""; if (!StringUtils.isBlank(CUSTOM_IMPORTS)) { CUSTOM_IMPORTS.split(":"); for (String s : imports) { importStr = "import " + s + ";\n"; } } String program = FileUtils.readFileToString( new File(root.getAbsolutePath() + "/src/main/resources/PrimitiveSetTemplate.java")); program = program.replaceAll("#MY_PACKAGE#", MY_PACKAGE); program = program.replaceAll("#CUSTOM_IMPORTS#", importStr); program = program.replaceAll("#CLASS_NAME#", CLASS_NAME); program = program.replaceAll("#T#", T); program = program.replaceAll("#TCLS#", tCls); System.out.println(outFile.getAbsolutePath()); FileUtils.writeStringToFile(outFile, program); } } }