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Groovy: A powerful, dynamic language for the JVM
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.runtime.InvokerHelper
import org.codehaus.groovy.tools.shell.ComplexCommandSupport
import org.codehaus.groovy.tools.shell.Groovysh
/**
* The 'record' command.
*
* @author Jason Dillon
*/
class RecordCommand
extends ComplexCommandSupport
{
public static final String COMMAND_NAME = ':record'
RecordCommand(final Groovysh shell) {
super(shell, COMMAND_NAME, ':r', [ 'start', 'stop', 'status' ], 'status')
addShutdownHook {
if (isRecording()) {
this.do_stop()
}
}
}
private File file
private PrintWriter writer
boolean isRecording() {
return file != null
}
def recordInput(final String line) {
assert line != null
if (isRecording()) {
writer.println(line)
writer.flush()
}
}
def recordResult(final Object result) {
// result maybe null
if (isRecording()) {
writer.println("// RESULT: ${InvokerHelper.toString(result)}")
writer.flush()
}
}
def recordError(final Throwable cause) {
assert cause != null
if (isRecording()) {
writer.println("// ERROR: $cause")
cause.stackTrace.each {
writer.println("// $it")
}
writer.flush()
}
}
def do_start = {List args ->
if (isRecording()) {
fail("Already recording to: \"$file\"")
}
if (args.size() == 0) {
file = File.createTempFile('groovysh-', '.txt')
} else if (args.size() == 1) {
file = new File(args[0] as String)
} else {
fail('Too many arguments. Usage: record start [filename]')
}
if (file.parentFile) file.parentFile.mkdirs()
writer = file.newPrintWriter()
writer.println('// OPENED: ' + new Date())
writer.flush()
io.out.println("Recording session to: \"$file\"")
return file
}
def do_stop = {
if (!isRecording()) {
fail('Not recording')
}
writer.println('// CLOSED: ' + new Date())
writer.flush()
writer.close()
writer = null
io.out.println("Recording stopped; session saved as: \"$file\" (${file.length()} bytes)")
def tmp = file
file = null
return tmp
}
def do_status = {
if (!isRecording()) {
io.out.println('Not recording')
return null
}
io.out.println("Recording to file: \"$file\" (${file.length()} bytes)")
return file
}
}