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1
23 package org.hammurapi;
24
25 import java.sql.SQLException  ;
26 import java.util.Collection ;
27 import java.util.Iterator ;
28 import java.util.LinkedList ;
29 import java.util.Properties ;
30
31 import com.pavelvlasov.jsel.statements.CompoundStatement;
32 import com.pavelvlasov.jsel.statements.EmptyStatement;
33 import com.pavelvlasov.jsel.statements.Statement;
34 import com.pavelvlasov.sql.SQLProcessor;
35 import com.pavelvlasov.util.OrderedTarget;
36 import com.pavelvlasov.util.DispatchingVisitor.Filter;
37
38
42 public class InspectorBase implements Inspector, OrderedTarget {
43 protected InspectorContext context;
44
45 public void setContext(InspectorContext context) {
46 this.context=context;
47 }
48
49 public void unSetContext() {
50 context=null;
51 }
52
53 public InspectorContext getContext() {
54 return context;
55 }
56
57 public static boolean isEmpty(Statement statement) {
58 if (statement==null) {
59 return true;
60 } if (statement instanceof EmptyStatement) {
61 return true;
62 } else if (statement instanceof CompoundStatement) {
63 Iterator it=((CompoundStatement) statement).getStatements().iterator();
64 while (it.hasNext()) {
65 if (!isEmpty((Statement) it.next())) {
66 return false;
67 }
68 }
69 return true;
70 } else {
71 return false;
72 }
73 }
74
75 public void init() throws HammurapiException {
76 }
77
78 public void destroy() {
79 }
80
81 public Integer getOrder() {
82 return getContext().getDescriptor().getOrder();
83 }
84
85 public String getConfigInfo() {
86 return null;
87 }
88
89
96 public Collection getTargets() {
97 return filterTargets;
98 }
99
100 private Collection filterTargets=this instanceof Filter ? new LinkedList () : null;
101
102 public void addTarget(Object target) {
103 if (this instanceof Filter && target!=null) {
104 filterTargets.add(target);
105 }
106 }
107
108
113 protected void disable(String message) {
114 getContext().getSession().disable(this);
115 getContext().warn(null, "Inspector "+getContext().getDescriptor().getName()+" disabled itself with message '"+message+"'");
116 }
117
118 public void initDb(SQLProcessor processor, Properties dbProperties) throws SQLException {
119
120 }
121 }
122 |
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