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1
5 package com.tc.object;
6
7 import com.tc.exception.TCRuntimeException;
8 import com.tc.object.applicator.AccessibleObjectApplicator;
9 import com.tc.object.applicator.ArrayApplicator;
10 import com.tc.object.applicator.ChangeApplicator;
11 import com.tc.object.applicator.FileApplicator;
12 import com.tc.object.applicator.LiteralTypesApplicator;
13 import com.tc.object.applicator.PhysicalApplicator;
14 import com.tc.object.applicator.ProxyApplicator;
15 import com.tc.object.config.DSOClientConfigHelper;
16 import com.tc.object.config.TransparencyClassSpec;
17 import com.tc.object.dna.impl.DNAEncoding;
18 import com.tc.object.field.TCFieldFactory;
19 import com.tc.object.loaders.ClassProvider;
20 import com.tc.util.ClassUtils;
21
22 import java.lang.reflect.Constructor  ;
23 import java.util.HashMap ;
24 import java.util.Map ;
25
26
29 public class TCClassFactoryImpl implements TCClassFactory {
30 private static final LiteralValues literalValues = new LiteralValues();
31 private static Class [] APPLICATOR_CSTR_SIGNATURE = new Class [] { DNAEncoding.class };
32
33 private final Map classes = new HashMap ();
34 private final TCFieldFactory fieldFactory;
35 private final DSOClientConfigHelper config;
36 private final ClassProvider classProvider;
37 private final DNAEncoding encoding;
38
39 public TCClassFactoryImpl(TCFieldFactory fieldFactory, DSOClientConfigHelper config, ClassProvider classProvider) {
40 this.fieldFactory = fieldFactory;
41 this.config = config;
42 this.classProvider = classProvider;
43 this.encoding = new DNAEncoding(classProvider);
44 }
45
46 public TCClass getOrCreate(Class clazz, ClientObjectManager objectManager) {
47 synchronized (classes) {
48 TCClass rv = (TCClass) classes.get(clazz);
49 if (rv == null) {
50 Class tcPeerClass = config.getTCPeerClass(clazz);
51 String loaderDesc = classProvider.getLoaderDescriptionFor(tcPeerClass);
52 String className = clazz.getName();
53 rv = new TCClassImpl(fieldFactory, this, objectManager, tcPeerClass,
54 getLogicalSuperClassWithDefaultConstructor(clazz), loaderDesc, config
55 .getLogicalExtendingClassName(className), config.isLogical(className), config
56 .isCallConstructorOnLoad(className), config.getOnLoadScriptIfDefined(className),
57 config.getOnLoadMethodIfDefined(className), config.isUseNonDefaultConstructor(clazz));
58 classes.put(clazz, rv);
59 }
60 return rv;
61 }
62 }
63
64 public Class getLogicalSuperClassWithDefaultConstructor(Class clazz) {
65 TransparencyClassSpec spec = config.getSpec(clazz.getName());
66 if (spec == null) { return null; }
67
68 while (clazz != null) {
69 if (spec == null) { return null; }
70 if (spec.isLogical()) {
71 Constructor c = null;
72 try {
73 c = clazz.getDeclaredConstructor(new Class [0]);
74 } catch (SecurityException e) {
75 throw new TCRuntimeException(e);
76 } catch (NoSuchMethodException e) {
77 c = null;
78 }
79 if (c != null) { return clazz; }
80 }
81 clazz = clazz.getSuperclass();
82 if (clazz != null) {
83 spec = config.getSpec(clazz.getName());
84 } else {
85 spec = null;
86 }
87 }
88 return null;
89 }
90
91 public ChangeApplicator createApplicatorFor(TCClass clazz, boolean indexed) {
92 if (indexed) { return new ArrayApplicator(encoding); }
93 String name = clazz.getName();
94 Class applicatorClazz = config.getChangeApplicator(clazz.getPeerClass());
95
96 if (applicatorClazz == null) {
97 if (literalValues.isLiteral(name)) {
98 return new LiteralTypesApplicator(clazz, encoding);
99 } else if (clazz.isProxyClass()) {
100 return new ProxyApplicator(encoding);
101 } else if (ClassUtils.isPortableReflectionClass(clazz.getPeerClass())) {
102 return new AccessibleObjectApplicator(encoding);
103 } else if ("java.io.File".equals(name)) {
104 return new FileApplicator(clazz, encoding);
105 } else {
106 return new PhysicalApplicator(clazz, encoding);
107 }
108 }
109
110 try {
111 Constructor cstr = applicatorClazz.getConstructor(APPLICATOR_CSTR_SIGNATURE);
112 Object [] params = new Object [] { encoding };
113 return (ChangeApplicator) cstr.newInstance(params);
114 } catch (Exception e) {
115 throw new AssertionError (e);
116 }
117 }
118 }
119 |
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