001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.maven.scm.command; 020 021import org.apache.maven.scm.CommandParameters; 022import org.apache.maven.scm.ScmException; 023import org.apache.maven.scm.ScmFileSet; 024import org.apache.maven.scm.ScmResult; 025import org.apache.maven.scm.provider.ScmProviderRepository; 026import org.slf4j.Logger; 027import org.slf4j.LoggerFactory; 028 029/** 030 * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a> 031 * @author <a href="mailto:trygvis@inamo.no">Trygve Laugstøl</a> 032 */ 033public abstract class AbstractCommand implements Command { 034 protected Logger logger = LoggerFactory.getLogger(getClass()); 035 036 protected abstract ScmResult executeCommand( 037 ScmProviderRepository repository, ScmFileSet fileSet, CommandParameters parameters) throws ScmException; 038 039 /** 040 * {@inheritDoc} 041 */ 042 public final ScmResult execute(ScmProviderRepository repository, ScmFileSet fileSet, CommandParameters parameters) 043 throws ScmException { 044 if (repository == null) { 045 throw new NullPointerException("repository cannot be null"); 046 } 047 048 if (fileSet == null) { 049 throw new NullPointerException("fileSet cannot be null"); 050 } 051 052 try { 053 return executeCommand(repository, fileSet, parameters); 054 } catch (Exception ex) { 055 throw new ScmException("Exception while executing SCM command.", ex); 056 } 057 } 058}