Allow to initialize IssuerTemplate cache via config

git-svn-id: https://joinup.ec.europa.eu/svn/mocca/trunk@1302 8a26b1a7-26f0-462f-b9ef-d0e30c41f5a4

4 files changed, 118 insertions, 7 deletions

diff --git a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/IdentityLinkInfoboxFactory.java b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/IdentityLinkInfoboxFactory.java
index 0e7a7c0d..cc0ad0d3 100644
--- a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/IdentityLinkInfoboxFactory.java
+++ b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/IdentityLinkInfoboxFactory.java
@@ -21,12 +21,8 @@
  * that you distribute must include a readable copy of the "NOTICE" text file.
  */
 
-
-
 package at.gv.egiz.bku.slcommands.impl;
 
-import at.gv.egiz.idlink.IdentityLinkTransformer;
-
 public class IdentityLinkInfoboxFactory extends AbstractInfoboxFactory {
 
   private IdentityLinkTransformer identityLinkTransformer;
diff --git a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/IdentityLinkInfoboxImpl.java b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/IdentityLinkInfoboxImpl.java
index add7a3e1..b2643d8e 100644
--- a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/IdentityLinkInfoboxImpl.java
+++ b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/IdentityLinkInfoboxImpl.java
@@ -60,7 +60,6 @@ import at.gv.egiz.bku.slexceptions.SLCommandException;
 import at.gv.egiz.bku.slexceptions.SLExceptionMessages;
 import at.gv.egiz.bku.slexceptions.SLRuntimeException;
 import at.gv.egiz.idlink.CompressedIdentityLinkFactory;
-import at.gv.egiz.idlink.IdentityLinkTransformer;
 import at.gv.egiz.idlink.ans1.IdentityLink;
 import at.gv.egiz.stal.InfoboxReadRequest;
 import at.gv.egiz.stal.STALRequest;
diff --git a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/IdentityLinkTransformer.java b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/IdentityLinkTransformer.java
new file mode 100644
index 00000000..e24e2f83
--- /dev/null
+++ b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/IdentityLinkTransformer.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2011 by Graz University of Technology, Austria
+ * MOCCA has been developed by the E-Government Innovation Center EGIZ, a joint
+ * initiative of the Federal Chancellery Austria and Graz University of Technology.
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://www.osor.eu/eupl/
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ *
+ * This product combines work with different licenses. See the "NOTICE" text
+ * file for details on the various modules and licenses.
+ * The "NOTICE" text file is part of the distribution. Any derivative works
+ * that you distribute must include a readable copy of the "NOTICE" text file.
+ */
+
+
+package at.gv.egiz.bku.slcommands.impl;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.transform.Templates;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.stream.StreamSource;
+
+import org.apache.commons.configuration.Configuration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.context.ResourceLoaderAware;
+import org.springframework.core.io.Resource;
+import org.springframework.core.io.ResourceLoader;
+
+import at.gv.egiz.bku.conf.MoccaConfigurationFacade;
+
+public class IdentityLinkTransformer extends at.gv.egiz.idlink.IdentityLinkTransformer implements ResourceLoaderAware {
+
+  private final Logger log = LoggerFactory.getLogger(IdentityLinkTransformer.class);
+
+  /**
+   * The configuration facade.
+   */
+  protected final ConfigurationFacade configurationFacade = new ConfigurationFacade();
+
+  private class ConfigurationFacade implements MoccaConfigurationFacade {
+
+    private Configuration configuration;
+    private ResourceLoader resLoader;
+
+    private final String ISSUER_TEMPLATE_CACHE =
+        "IssuerTemplateCache";
+    private final String ISSUER_TEMPLATE_CACHE_ENTRY =
+        ISSUER_TEMPLATE_CACHE + ".entry";
+    private final String ISSUER_TEMPLATE_CACHE_URLS =
+        ISSUER_TEMPLATE_CACHE_ENTRY + ".url";
+    private final String ISSUER_TEMPLATE_CACHE_RESOURCES =
+        ISSUER_TEMPLATE_CACHE_ENTRY + ".resource";
+
+    public Map<String, Templates> getIssuerTemplateCacheMap(
+        TransformerFactory factory) {
+      Map<String, Templates> templates =
+          Collections.synchronizedMap(new HashMap<String, Templates>());
+      List<Object> urls = configuration.getList(ISSUER_TEMPLATE_CACHE_URLS);
+      List<Object> resources = configuration.getList(ISSUER_TEMPLATE_CACHE_RESOURCES);
+      if (!urls.isEmpty() && (urls.size() == resources.size())) {
+        for (int i = 0; i < urls.size(); ++i) {
+          if ((urls.get(i) == null) || (resources.get(i) == null))
+            continue;
+          String url = urls.get(i).toString();
+          String resource = resources.get(i).toString();
+          Resource templRes = resLoader.getResource(resource);
+          try {
+            Templates template = factory.newTemplates(new StreamSource(templRes.getInputStream()));
+            templates.put(url, template);
+          } catch (Exception e) {
+            log.error("Error initializing issuer template cache", e);
+          }
+        }
+      }
+      return templates;
+    }
+
+    public void setResourceLoader(ResourceLoader resLoader) {
+      this.resLoader = resLoader;
+    }
+  }
+
+  @Override
+  protected Map<String, Templates> getInitialTemplateMap() {
+    Map<String, Templates> templateMap = configurationFacade.getIssuerTemplateCacheMap(factory);
+    log.debug("IssuerTemplate cache initialized with {} elements", templateMap.size());
+    return templateMap;
+  }
+
+  /**
+   * @param configuration the configuration to set
+   */
+  public void setConfiguration(Configuration configuration) {
+    configurationFacade.configuration = configuration;
+  }
+
+  @Override
+  public void setResourceLoader(ResourceLoader resLoader) {
+    configurationFacade.setResourceLoader(resLoader);
+  }
+}
diff --git a/bkucommon/src/test/resources/at/gv/egiz/bku/slcommands/testApplicationContext.xml b/bkucommon/src/test/resources/at/gv/egiz/bku/slcommands/testApplicationContext.xml
index 7d7c967f..fffabb47 100644
--- a/bkucommon/src/test/resources/at/gv/egiz/bku/slcommands/testApplicationContext.xml
+++ b/bkucommon/src/test/resources/at/gv/egiz/bku/slcommands/testApplicationContext.xml
@@ -53,8 +53,9 @@
   <bean id="identityLinkInfoboxFactory"
     class="at.gv.egiz.bku.slcommands.impl.IdentityLinkInfoboxFactory">
     <property name="identityLinkTransformer">
-      <bean class="at.gv.egiz.idlink.IdentityLinkTransformer">
+      <bean class="at.gv.egiz.bku.slcommands.impl.IdentityLinkTransformer">
         <property name="urlDereferencer" ref="urlDereferencer"/>
+        <property name="configuration" ref="configuration"/>
       </bean>
     </property>
   </bean>
@@ -165,4 +166,4 @@
     </property>
   </bean>
 
-</beans>
\ No newline at end of file
+</beans>