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1
8 package org.codehaus.aspectwerkz.extension.hotswap;
9
10 import org.codehaus.aspectwerkz.definition.*;
11 import org.codehaus.aspectwerkz.hook.impl.ClassPreProcessorHelper;
12 import org.codehaus.aspectwerkz.transform.AspectWerkzPreProcessor;
13 import org.codehaus.aspectwerkz.transform.ClassCacheTuple;
14 import org.codehaus.aspectwerkz.transform.inlining.deployer.Deployer;
15 import org.codehaus.aspectwerkz.transform.inlining.deployer.DeploymentHandle;
16
17 import java.util.Iterator  ;
18 import java.util.List ;
19 import java.util.Map ;
20 import java.util.HashMap ;
21 import java.util.Set ;
22
23
28 public class EWorldUtil {
29
30 private static final Map s_weaveStatus = new HashMap ();
31
32 public static boolean isWeaved(final String uuid, final String aspectName) {
33 Map aspects = (Map ) s_weaveStatus.get(uuid);
34 if (aspects == null || aspects.keySet().size() == 0) {
35 return false;
36 } else {
37 Boolean status = (Boolean ) aspects.get(aspectName);
38 if (status == null) {
39 return false;
40 } else {
41 return status.booleanValue();
42 }
43 }
44 }
45
46 public static void activate(final String uuid,
47 final String aspectName,
48 final String adviceName,
49 final String expression,
50 final String pointcutName) {
51 ClassLoader loader = EWorldUtil.class.getClassLoader();
52 DeploymentScope scope = SystemDefinitionContainer.getDefinitionFor(loader, uuid).getDeploymentScope("demo");
53
54 try {
55 Class aspect = Class.forName(aspectName, false, loader);
56 Deployer.deploy(aspect,
57 "<aspect class=\""+aspectName+"\">"
58 + "<advice name=\""+adviceName+"\" type=\"around\" bind-to=\""+expression+"\"/>"
59 + "</aspect>",
60 scope);
61 setStatus(uuid, aspectName, Boolean.TRUE);
62 } catch (Throwable t) {
63 t.printStackTrace();
64 }
65
66
67 }
118
119 public static void deactivate(final String uuid,
120 final String aspectName,
121 final String adviceName,
122 final String pointcutName) {
123 ClassLoader loader = EWorldUtil.class.getClassLoader();
124 DeploymentScope scope = SystemDefinitionContainer.getDefinitionFor(loader, uuid).getDeploymentScope("demo");
125
126 try {
127 Class aspect = Class.forName(aspectName, false, loader);
128 Deployer.undeploy(aspect);
129 setStatus(uuid, aspectName, Boolean.FALSE);
130 } catch (Throwable t) {
131 t.printStackTrace();
132 }
133 }
175
176 public static void activateCache(String expression, String pointcutName) {
177 activate(
178 "eworld/wlw/aop",
179 "examples.caching.CachingAspect",
180 "cache",
181 expression,
182 pointcutName
183 );
184 }
185
186 public static void deactivateCache(String pointcutName) {
187 deactivate("eworld/wlw/aop", "examples.caching.CachingAspect", "cache", pointcutName);
188 }
189
190 public static void activateTrace(String expression, String pointcutName) {
191 activate(
192 "eworld/wlw/aop",
193 "examples.logging.LoggingAspect",
194 "logMethod",
195 expression,
196 pointcutName
197 );
198 }
199
200 public static void deactivateTrace(String pointcutName) {
201 deactivate("eworld/wlw/aop", "examples.logging.LoggingAspect", "logMethod", pointcutName);
202 }
203
204 public static void hotswap(String classPattern) {
205 ClassLoader loader = EWorldUtil.class.getClassLoader();
206 DeploymentScope scope = SystemDefinitionContainer.getDefinitionFor(loader, "eworld/wlw/aop").getDeploymentScope("demo");
207 }
209
210 public static void dumpSystemDefinitions(ClassLoader loader) {
211 java.io.PrintStream out = System.out;
212 out.println("dumpSystemDefinitions [ " + loader + " ]");
213 Set defs = SystemDefinitionContainer.getDefinitionsFor(loader);
214 for (Iterator sysDefs = defs.iterator(); sysDefs.hasNext();) {
215 SystemDefinition sysDef = (SystemDefinition) sysDefs.next();
216 out.print(sysDef.getUuid());
217 out.println("");
218 for (Iterator prepares = sysDef.getPreparePackages().iterator(); prepares.hasNext();) {
219 out.print("[Prepare] " + prepares.next());
220 out.println("");
221 }
222 for (Iterator aspectDefs = sysDef.getAspectDefinitions().iterator(); aspectDefs
223 .hasNext();) {
224 AspectDefinition aspectDef = (AspectDefinition) aspectDefs.next();
225 out.print("[Aspect] " + aspectDef.getName());
226 out.println("");
227 for (Iterator arounds = aspectDef.getAroundAdviceDefinitions().iterator(); arounds.hasNext();) {
228 AdviceDefinition around = (AdviceDefinition) arounds.next();
229 out.print(" [AroundAdvice] " + around.getName());
230 out.print(" ");
231 out.print(around.getExpressionInfo().toString());
232 out.println("");
233 }
234 out.println("\n-");
235 }
236 out.println("\n----");
237 }
238 }
239
240 private static void setStatus(final String uuid, final String aspectName, final Boolean status) {
241 Map aspects = (Map ) s_weaveStatus.get(uuid);
242 if (aspects == null) {
243 aspects = new HashMap ();
244 s_weaveStatus.put(uuid, aspects);
245 }
246 aspects.put(aspectName, status);
247 }
248 } |
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