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1
4 package com.tc.config.schema;
5
6 import org.apache.commons.lang.ClassUtils;
7 import org.apache.xmlbeans.XmlObject;
8
9 import com.tc.config.schema.context.ConfigContext;
10 import com.tc.config.schema.dynamic.ConfigItem;
11 import com.tc.config.schema.dynamic.ConfigItemListener;
12 import com.tc.logging.TCLogger;
13 import com.tc.logging.TCLogging;
14 import com.tc.util.Assert;
15
16 import java.lang.reflect.Array  ;
17
18
21 public class BaseNewConfigObject implements NewConfig {
22
23 private static final TCLogger logger = TCLogging.getLogger(BaseNewConfigObject.class);
24
25 protected final ConfigContext context;
26
27 public BaseNewConfigObject(ConfigContext context) {
28 Assert.assertNotNull(context);
29 this.context = context;
30 }
31
32 private static class IgnoringConfigItemListener implements ConfigItemListener {
33 private final ConfigItem item;
34
35 public IgnoringConfigItemListener(ConfigItem item) {
36 Assert.assertNotNull(item);
37 this.item = item;
38 }
39
40 public void valueChanged(Object oldValue, Object newValue) {
41 logger.warn("The attempt to change the value of " + item + " from " + oldValue + " to " + newValue
42 + " was ignored; runtime changes in this configuration value are not yet supported.");
43 }
44 }
45
46 public void changesInItemIgnored(ConfigItem item) {
47 Assert.assertNotNull(item);
48 item.addListener(new IgnoringConfigItemListener(item));
49 }
50
51 private class ForbiddenConfigItemListener implements ConfigItemListener {
52 private final ConfigItem item;
53
54 public ForbiddenConfigItemListener(ConfigItem item) {
55 Assert.assertNotNull(item);
56 this.item = item;
57 }
58
59 private boolean isEqual(Object one, Object two) {
60 if (one != null && two != null && one.getClass().isArray() && two.getClass().isArray()
61 && one.getClass().getComponentType().equals(two.getClass().getComponentType())) {
62 if (Array.getLength(one) != Array.getLength(two)) return false;
63
64 for (int i = 0; i < Array.getLength(one); ++i) {
65 if (!isEqual(Array.get(one, i), Array.get(two, i))) return false;
66 }
67
68 return true;
69 } else if (one != null && two != null) {
70 return one.equals(two);
71 } else return one == two;
72 }
73
74 public void valueChanged(Object oldValue, Object newValue) {
75 if (oldValue == null) return;
76 if (newValue != null && isEqual(oldValue, newValue)) return;
77
78 context.illegalConfigurationChangeHandler().changeFailed(item, oldValue, newValue);
79 }
80 }
81
82 public void changesInItemForbidden(ConfigItem item) {
83 Assert.assertNotNull(item);
84 item.addListener(new ForbiddenConfigItemListener(item));
85 }
86
87 public String toString() {
88 return ClassUtils.getShortClassName(getClass()) + " around bean:\n" + context.bean();
89 }
90
91 public XmlObject getBean() {
92 return this.context.bean();
93 }
94
95 }
96 |
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