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Groovy example source code file (PurgeCommand.groovy)

This example Groovy source code file (PurgeCommand.groovy) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

complexcommandsupport, custom, custom, no, no, preferences, purgecommand, purgecommand, shell, todo, todo

The Groovy PurgeCommand.groovy source code

/*
 * 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
import org.codehaus.groovy.tools.shell.util.Preferences

/**
 * The 'purge' command.
 *
 * @version $Id: PurgeCommand.groovy 8449 2007-10-07 10:18:00Z user57 $
 * @author <a href="mailto:jason@planet57.com">Jason Dillon
 */
class PurgeCommand
    extends ComplexCommandSupport
{
    PurgeCommand(final Shell shell) {
        super(shell, 'purge', '\\p')
        
        this.functions = [ 'variables', 'classes', 'imports', 'preferences', '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_preferences = {
        Preferences.clear()
        
        if (io.verbose) {
            io.out.println("Preferences purged") // TODO: i18n
        }
    }
}

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