01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: *
23: * Free Software Foundation, Inc.
24: * 59 Temple Place, Suite 330
25: * Boston, MA 02111-1307 USA
26: *
27: * @author Scott Ferguson
28: */
29:
30: package com.caucho.quercus.function;
31:
32: import java.io.InputStream;
33:
34: import com.caucho.quercus.env.Env;
35: import com.caucho.quercus.env.JavaValue;
36: import com.caucho.quercus.env.Value;
37: import com.caucho.quercus.expr.Expr;
38: import com.caucho.vfs.Path;
39:
40: public class InputStreamMarshal extends Marshal {
41: public static final Marshal MARSHAL = new InputStreamMarshal();
42:
43: public boolean isReadOnly() {
44: return true;
45: }
46:
47: public Object marshal(Env env, Expr expr, Class expectedClass) {
48: return expr.eval(env).toInputStream();
49: }
50:
51: public Object marshal(Env env, Value value, Class expectedClass) {
52: return value.toInputStream();
53: }
54:
55: public Value unmarshal(Env env, Object value) {
56: return env.wrapJava((InputStream) value);
57: }
58:
59: @Override
60: protected int getMarshalingCostImpl(Value argValue) {
61: if (argValue instanceof JavaValue
62: && InputStream.class.isAssignableFrom(argValue
63: .toJavaObject().getClass()))
64: return Marshal.SAME;
65: else
66: return Marshal.DUBIOUS;
67: }
68:
69: @Override
70: public Class getExpectedClass() {
71: return InputStream.class;
72: }
73: }
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