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1
21 package com.db4o.inside.diagnostic;
22
23 import com.db4o.*;
24 import com.db4o.diagnostic.*;
25 import com.db4o.foundation.*;
26 import com.db4o.query.*;
27
28
33 public class DiagnosticProcessor implements DiagnosticConfiguration, DeepClone{
34
35 private Collection4 _listeners;
36
37 public DiagnosticProcessor() {
38 }
39
40 private DiagnosticProcessor(Collection4 listeners) {
41 _listeners = listeners;
42 }
43
44 public void addListener(DiagnosticListener listener) {
45 if(_listeners == null){
46 _listeners = new Collection4();
47 }
48 _listeners.add(listener);
49 }
50
51 public void checkClassHasFields(YapClass yc){
52 YapField[] fields = yc.i_fields;
53 if(fields != null && fields.length == 0){
54 String  name = yc.getName();
55 String [] ignoredPackages = new String []{
56 "java.util."
57 };
58 for (int i = 0; i < ignoredPackages.length; i++) {
59 if (name.indexOf(ignoredPackages[i]) == 0){
60 return;
61 }
62 }
63 if(isDb4oClass(yc)){
64 return;
65 }
66 onDiagnostic(new ClassHasNoFields(name));
67 }
68 }
69
70 public void checkUpdateDepth(int depth) {
71 if (depth > 1) {
72 onDiagnostic(new UpdateDepthGreaterOne(depth));
73 }
74 }
75
76 public Object deepClone(Object context) {
77 return new DiagnosticProcessor(cloneListeners());
78 }
79
80 private Collection4 cloneListeners() {
81 return _listeners != null
82 ? new Collection4(_listeners)
83 : null;
84 }
85
86 public boolean enabled(){
87 return _listeners != null;
88 }
89
90 private boolean isDb4oClass(YapClass yc){
91 return Platform4.isDb4oClass(yc.getName());
92 }
93
94 public void loadedFromClassIndex(YapClass yc) {
95 if(isDb4oClass(yc)){
96 return;
97 }
98 onDiagnostic(new LoadedFromClassIndex(yc.getName()));
99 }
100
101 public void descendIntoTranslator(YapClass parent,String fieldName) {
102 onDiagnostic(new DescendIntoTranslator(parent.getName(),fieldName));
103 }
104
105 public void nativeQueryUnoptimized(Predicate predicate) {
106 onDiagnostic(new NativeQueryNotOptimized(predicate));
107 }
108
109 private void onDiagnostic(Diagnostic d) {
110 if(_listeners == null){
111 return;
112 }
113 Iterator4 i = _listeners.iterator();
114 while(i.moveNext()){
115 ((DiagnosticListener)i.current()).onDiagnostic(d);
116 }
117 }
118
119 public void removeAllListeners() {
120 _listeners = null;
121 }
122 }
123 |
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