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 */ 019package org.crsh.shell.impl.command.pipeline; 020 021import org.crsh.command.CommandContext; 022import org.crsh.shell.ScreenContext; 023import org.crsh.text.Chunk; 024import org.crsh.text.ChunkAdapter; 025 026import java.io.IOException; 027 028/** @author Julien Viet */ 029public class ToChunkPipe<C, CONS extends CommandContext<? super Chunk>> extends AbstractPipe<C, Chunk, CONS> { 030 031 /** . */ 032 private ChunkAdapter adapter; 033 034 /** . */ 035 private Class<C> consumedType; 036 037 public ToChunkPipe(Class<C> consumedType, boolean piped) { 038 super(piped); 039 040 // 041 this.consumedType = consumedType; 042 } 043 044 @Override 045 public void open(final CONS consumer) { 046 super.open(consumer); 047 048 // 049 adapter = new ChunkAdapter(new ScreenContext() { 050 public int getWidth() { 051 return consumer.getWidth(); 052 } 053 public int getHeight() { 054 return consumer.getHeight(); 055 } 056 public Class<Chunk> getConsumedType() { 057 return Chunk.class; 058 } 059 public void provide(Chunk element) throws IOException { 060 consumer.provide(element); 061 } 062 public void flush() throws IOException { 063 consumer.flush(); 064 } 065 public void write(Chunk chunk) throws IOException { 066 consumer.write(chunk); 067 } 068 }); 069 } 070 071 public void provide(C element) throws IOException { 072 adapter.provide(element); 073 } 074 075 @Override 076 public void flush() throws IOException { 077 adapter.flush(); 078 } 079 080 @Override 081 public void close() throws IOException { 082 adapter.flush(); 083 super.close(); 084 } 085 086 public void write(Chunk chunk) throws IOException { 087 adapter.provide(chunk); 088 } 089 090 public Class<Chunk> getProducedType() { 091 return Chunk.class; 092 } 093 094 public Class<C> getConsumedType() { 095 return consumedType; 096 } 097}