001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.geronimo.cli; 018 019 import java.io.PrintStream; 020 021 import org.apache.geronimo.cli.CLParserException; 022 import org.apache.geronimo.kernel.log.GeronimoLogging; 023 import org.apache.geronimo.kernel.util.MainConfigurationBootstrapper; 024 025 026 /** 027 * @version $Rev: 476049 $ $Date: 2006-11-17 15:35:17 +1100 (Fri, 17 Nov 2006) $ 028 */ 029 public abstract class AbstractCLI { 030 031 private final String[] args; 032 private final PrintStream errStream; 033 034 protected AbstractCLI(String[] args, PrintStream errStream) { 035 if (null == args) { 036 throw new IllegalArgumentException("args is required"); 037 } else if (null == errStream) { 038 throw new IllegalArgumentException("errStream is required"); 039 } 040 this.args = args; 041 this.errStream = errStream; 042 } 043 044 public int executeMain() { 045 CLParser parser = getCLParser(); 046 try { 047 parser.parse(args); 048 } catch (CLParserException e) { 049 errStream.println(e.getMessage()); 050 parser.displayHelp(); 051 return 1; 052 } 053 054 if (parser.isHelp()) { 055 parser.displayHelp(); 056 return 0; 057 } 058 059 boolean executed = executeCommand(parser); 060 if (executed) { 061 return 0; 062 } 063 064 initializeLogging(parser); 065 066 MainConfigurationBootstrapper mainConfigurationBootstrapper = newMainConfigurationBootstrapper(); 067 return MainConfigurationBootstrapper.main(mainConfigurationBootstrapper, parser); 068 } 069 070 protected boolean executeCommand(CLParser parser) { 071 return false; 072 } 073 074 protected void initializeLogging(CLParser parser) { 075 GeronimoLogging level = GeronimoLogging.WARN; 076 if (parser.isVerboseInfo()) { 077 level = GeronimoLogging.INFO; 078 } else if (parser.isVerboseDebug()) { 079 level = GeronimoLogging.DEBUG; 080 } else if (parser.isVerboseTrace()) { 081 level = GeronimoLogging.TRACE; 082 } 083 GeronimoLogging.initialize(level); 084 } 085 086 protected abstract MainConfigurationBootstrapper newMainConfigurationBootstrapper(); 087 088 protected abstract CLParser getCLParser(); 089 090 }