001/* 002 * (C) Copyright 2006-2007 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * bstefanescu 018 * 019 * $Id$ 020 */ 021 022package org.nuxeo.ecm.platform.rendering.impl; 023 024import java.io.ByteArrayInputStream; 025import java.io.InputStream; 026 027import org.nuxeo.ecm.platform.rendering.RenderingResult; 028 029/** 030 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> 031 */ 032public abstract class DefaultRenderingResult implements RenderingResult { 033 034 private static final long serialVersionUID = 6570212240033856735L; 035 036 protected final String formatName; 037 038 /** 039 * Constructor taking a rendering result name as argument. 040 */ 041 protected DefaultRenderingResult(String formatName) { 042 this.formatName = formatName; 043 } 044 045 /** 046 * @return name of the engine that created it 047 */ 048 @Override 049 public String getFormatName() { 050 return formatName; 051 } 052 053 @Override 054 public abstract Object getOutcome(); 055 056 @Override 057 public InputStream getStream() { 058 Object outcome = getOutcome(); 059 if (outcome instanceof InputStream) { 060 return (InputStream) outcome; 061 } else if (outcome instanceof byte[]) { 062 return new ByteArrayInputStream((byte[]) outcome); 063 } else if (outcome instanceof CharSequence) { 064 return new ByteArrayInputStream(outcome.toString().getBytes()); 065 } 066 return getAdapter(InputStream.class); 067 } 068 069 @Override 070 public <E> E getAdapter(Class<E> adapter) { 071 Object outcome = getOutcome(); 072 if (adapter.isAssignableFrom(outcome.getClass())) { 073 return adapter.cast(outcome); 074 } 075 return null; 076 } 077 078}