groovy-core/src/main/org/codehaus/groovy/tools/shell/commands/PurgeCommand.groovy

/*
 * Copyright 2003-2007 the original author or authors.
 *
 * 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 org.codehaus.groovy.tools.shell.commands

import org.codehaus.groovy.tools.shell.ComplexCommandSupport
import org.codehaus.groovy.tools.shell.Shell

/**
 * The 'purge' command.
 *
 * @version $Id$
 * @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
 */
class PurgeCommand
    extends ComplexCommandSupport
{
    PurgeCommand(final Shell shell) {
        super(shell, 'purge', '\\p')
        
        this.functions = [ 'variables', 'classes', 'imports', 'buffers', 'all' ]
    }
    
    def do_variables = {
        if (variables.isEmpty()) {
            io.out.println('No variables defined') // TODO: i18n
        }
        else {
            variables.clear()
            
            if (io.verbose) {
                io.out.println("Custom variables purged") // TODO: i18n
            }
        }
    }
    
    def do_classes = {
        if (classLoader.loadedClasses.size() == 0) {
            io.out.println("No classes have been loaded") // TODO: i18n
        }
        else {
            classLoader.clearCache()
            
            if (io.verbose) {
                io.out.println('Loaded classes purged') // TODO: i18n
            }
        }
    }
    
    def do_imports = {
        if (imports.isEmpty()) {
            io.out.println("No custom imports have been defined") // TODO: i18n
        }
        else {
            imports.clear()
            
            if (io.verbose) {
                io.out.println("Custom imports purged") // TODO: i18n
            }
        }
    }
    
    def do_buffers = {
        buffers.reset()
        
        if (io.verbose) {
            io.out.println('All buffers purged') // TODO: i18n
        }
    }
}