001/*
002 * Copyright (C) 2012 eXo Platform SAS.
003 *
004 * This is free software; you can redistribute it and/or modify it
005 * under the terms of the GNU Lesser General Public License as
006 * published by the Free Software Foundation; either version 2.1 of
007 * the License, or (at your option) any later version.
008 *
009 * This software is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * You should have received a copy of the GNU Lesser General Public
015 * License along with this software; if not, write to the Free
016 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
017 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
018 */
019
020package org.crsh.shell.impl.remoting;
021
022import org.crsh.cli.impl.completion.CompletionMatch;
023import org.crsh.shell.ErrorKind;
024import org.crsh.shell.ShellResponse;
025
026import java.io.IOException;
027import java.io.ObjectInputStream;
028import java.io.ObjectOutputStream;
029import java.io.Serializable;
030
031public class ServerMessage implements Serializable {
032
033  public static class Welcome extends ServerMessage {
034
035    /** . */
036    public final String value;
037
038    public Welcome(String value) {
039      this.value = value;
040    }
041  }
042
043  public static class Prompt extends ServerMessage {
044
045    /** . */
046    public final String value;
047
048    public Prompt(String value) {
049      this.value = value;
050    }
051  }
052
053  public static class Completion extends ServerMessage {
054
055    /** . */
056    public final CompletionMatch value;
057
058    public Completion(CompletionMatch value) {
059      this.value = value;
060    }
061  }
062
063  public static class UseMainBuffer extends ServerMessage {
064
065  }
066
067  public static class UseAlternateBuffer extends ServerMessage {
068
069  }
070
071  public static class GetSize extends ServerMessage {
072
073  }
074
075  public static class ReadLine extends ServerMessage {
076
077  }
078
079  public static abstract class Chunk extends ServerMessage {
080
081    public static class Text extends Chunk {
082
083      /** . */
084      public final CharSequence payload;
085
086      public Text(CharSequence payload) {
087        this.payload = payload;
088      }
089    }
090
091    public static class Style extends Chunk {
092
093      /** . */
094      public final org.crsh.text.Style payload;
095
096      public Style(org.crsh.text.Style payload) {
097        this.payload = payload;
098      }
099    }
100
101    public static class Cls extends Chunk {
102
103      public Cls() {
104      }
105    }
106  }
107
108  public static class Flush extends ServerMessage {
109  }
110
111
112
113  public static class End extends ServerMessage {
114
115    /** . */
116    public ShellResponse response;
117
118    public End(ShellResponse response) {
119      if (response == null) {
120        throw new NullPointerException("No null response accepted");
121      }
122
123      //
124      this.response = response;
125    }
126
127    private void writeObject(ObjectOutputStream oos) throws IOException {
128      if (response instanceof ShellResponse.Error) {
129        oos.writeBoolean(false);
130        ShellResponse.Error error = (ShellResponse.Error)response;
131        oos.writeObject(error.getKind());
132        oos.writeObject(error.getMessage());
133        oos.writeObject(error.getThrowable().getMessage());
134        oos.writeObject(error.getThrowable().getStackTrace());
135      } else {
136        oos.writeBoolean(true);
137        oos.writeObject(response);
138      }
139    }
140
141    private void readObject(ObjectInputStream ois) throws IOException, ClassNotFoundException {
142      if (ois.readBoolean()) {
143        response = (ShellResponse)ois.readObject();
144      } else {
145        ErrorKind type = (ErrorKind)ois.readObject();
146        String message = (String)ois.readObject();
147        String errorMessage = (String)ois.readObject();
148        StackTraceElement[] errorTrace = (StackTraceElement[])ois.readObject();
149        Exception ex = new Exception(errorMessage);
150        ex.setStackTrace(errorTrace);
151        response = ShellResponse.error(type, message, ex);
152      }
153    }
154  }
155}