| /* |
| * 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; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.OutputStream; |
| import java.io.PrintWriter; |
| import java.io.Reader; |
| |
| import org.codehaus.groovy.tools.shell.util.ANSI.RenderWriter; |
| import org.codehaus.groovy.tools.shell.util.Preferences; |
| |
| /** |
| * Container for input/output handles. |
| * |
| * @version $Id$ |
| * @author <a href="mailto:jason@planet57.com">Jason Dillon</a> |
| */ |
| public class IO |
| { |
| /** Raw input stream. */ |
| public final InputStream inputStream; |
| |
| /** Raw output stream. */ |
| public final OutputStream outputStream; |
| |
| /** Raw error output stream. */ |
| public final OutputStream errorStream; |
| |
| /** Prefered input reader. */ |
| public final Reader in; |
| |
| /** Prefered output writer. */ |
| public final PrintWriter out; |
| |
| /** Prefered error output writer. */ |
| public final PrintWriter err; |
| |
| /** |
| * Construct a new IO container. |
| */ |
| public IO(final InputStream inputStream, final OutputStream outputStream, final OutputStream errorStream) { |
| assert inputStream != null; |
| assert outputStream != null; |
| assert errorStream != null; |
| |
| this.inputStream = inputStream; |
| this.outputStream = outputStream; |
| this.errorStream = errorStream; |
| |
| this.in = new InputStreamReader(inputStream); |
| |
| // |
| // TODO: Once all user output is in i18n, then it would be more efficent to have the MessageSource |
| // be ANSI-aware instead of this... |
| // |
| |
| this.out = new RenderWriter(outputStream, true); |
| this.err = new RenderWriter(errorStream, true); |
| } |
| |
| /** |
| * Construct a new IO container using system streams. |
| */ |
| public IO() { |
| this(System.in, System.out, System.err); |
| } |
| |
| /** |
| * Set the verbosity level. |
| * |
| * @param verbosity |
| */ |
| public void setVerbosity(final Verbosity verbosity) { |
| assert verbosity != null; |
| |
| Preferences.verbosity = verbosity; |
| } |
| |
| /** |
| * Returns the verbosity level. |
| */ |
| public Verbosity getVerbosity() { |
| return Preferences.verbosity; |
| } |
| |
| /** |
| * Check if the verbosity level is set to {@link Verbosity#QUIET}. |
| */ |
| public boolean isQuiet() { |
| return getVerbosity() == Verbosity.QUIET; |
| } |
| |
| /** |
| * Check if the verbosity level is set to {@link Verbosity#INFO}. |
| */ |
| public boolean isInfo() { |
| return getVerbosity() == Verbosity.INFO; |
| } |
| |
| /** |
| * Check if the verbosity level is set to {@link Verbosity#VERBOSE}. |
| */ |
| public boolean isVerbose() { |
| return getVerbosity() == Verbosity.VERBOSE; |
| } |
| |
| /** |
| * Check if the verbosity level is set to {@link Verbosity#DEBUG}. |
| * |
| * <p>For generaly usage, when debug output is required, it is better |
| * to use the logging facility instead. |
| */ |
| public boolean isDebug() { |
| return getVerbosity() == Verbosity.DEBUG; |
| } |
| |
| /** |
| * Flush both output streams. |
| */ |
| public void flush() throws IOException { |
| out.flush(); |
| err.flush(); |
| } |
| |
| /** |
| * Close all streams. |
| */ |
| public void close() throws IOException { |
| in.close(); |
| out.close(); |
| err.close(); |
| } |
| |
| // |
| // Verbosity |
| // |
| |
| public static final class Verbosity |
| { |
| public static final Verbosity QUIET = new Verbosity("QUIET"); |
| |
| public static final Verbosity INFO = new Verbosity("INFO"); |
| |
| public static final Verbosity VERBOSE = new Verbosity("VERBOSE"); |
| |
| public static final Verbosity DEBUG = new Verbosity("DEBUG"); |
| |
| public final String name; |
| |
| private Verbosity(final String name) { |
| this.name = name; |
| } |
| |
| public String toString() { |
| return name; |
| } |
| |
| public static Verbosity forName(final String name) { |
| assert name != null; |
| |
| if (QUIET.name.equalsIgnoreCase(name)) { |
| return QUIET; |
| } |
| if (INFO.name.equalsIgnoreCase(name)) { |
| return INFO; |
| } |
| if (VERBOSE.name.equalsIgnoreCase(name)) { |
| return VERBOSE; |
| } |
| if (DEBUG.name.equalsIgnoreCase(name)) { |
| return DEBUG; |
| } |
| |
| throw new IllegalArgumentException("Invalid verbosity name: " + name); |
| } |
| } |
| } |