org.codehaus.groovy.tools.shell.commands.RecordCommand.groovy Maven / Gradle / Ivy
/*
* 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.runtime.InvokerHelper
import org.codehaus.groovy.tools.shell.ComplexCommandSupport
import org.codehaus.groovy.tools.shell.Groovysh
/**
* The 'record' command.
*
* @version $Id$
* @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
}
}