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.env;
31:
32: import com.caucho.vfs.WriteStream;
33:
34: import java.io.Closeable;
35: import java.io.IOException;
36: import java.util.IdentityHashMap;
37:
38: /**
39: * Represents a PHP resource
40: */
41: public class ResourceValue extends Value implements EnvCleanup {
42: /**
43: * Implements the EnvCleanup interface.
44: */
45:
46: public void cleanup() {
47: }
48:
49: /**
50: * By default close() will call cleanup().
51: * If implementation specific logic is
52: * needed to clean up resources it should
53: * be defined in an overloaded cleanup().
54: */
55:
56: public void close() {
57: cleanup();
58: }
59:
60: /**
61: * Converts to a key.
62: */
63: @Override
64: public Value toKey() {
65: return new LongValue(System.identityHashCode(this ));
66: }
67:
68: /**
69: * Converts to a string.
70: */
71: @Override
72: public String toString() {
73: return "ResourceValue[]";
74: }
75:
76: @Override
77: protected void varDumpImpl(Env env, WriteStream out, int depth,
78: IdentityHashMap<Value, String> valueSet) throws IOException {
79: out.print("resource(" + toString(env) + ")");
80: }
81:
82: @Override
83: protected void printRImpl(Env env, WriteStream out, int depth,
84: IdentityHashMap<Value, String> valueSet) throws IOException {
85: out.print("resource(" + toString(env) + ")");
86: }
87: }
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