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hrmsEjb/net/sf/jasperreports/engine/fill/JRVirtualizationContext.java

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+package net.sf.jasperreports.engine.fill;
+
+import java.io.Serializable;
+import java.util.HashMap;
+import java.util.Map;
+import net.sf.jasperreports.engine.JRPrintImage;
+import net.sf.jasperreports.engine.JRRenderable;
+import net.sf.jasperreports.engine.JasperPrint;
+import org.apache.commons.collections.ReferenceMap;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+public class JRVirtualizationContext implements Serializable {
+  private static final long serialVersionUID = 10200L;
+  
+  private static final Log log = LogFactory.getLog(JRVirtualizationContext.class);
+  
+  private static final ReferenceMap contexts = new ReferenceMap(2, 2);
+  
+  private Map cachedRenderers = new HashMap();
+  
+  private Map cachedTemplates = new HashMap();
+  
+  private boolean readOnly;
+  
+  public void cacheRenderer(JRPrintImage image) {
+    JRRenderable renderer = image.getRenderer();
+    if (renderer != null)
+      this.cachedRenderers.put(renderer.getId(), renderer); 
+  }
+  
+  public JRRenderable getCachedRenderer(String id) {
+    return (JRRenderable)this.cachedRenderers.get(id);
+  }
+  
+  public boolean hasCachedRenderer(String id) {
+    return this.cachedRenderers.containsKey(id);
+  }
+  
+  public boolean hasCachedTemplate(String id) {
+    return this.cachedTemplates.containsKey(id);
+  }
+  
+  public void cacheTemplate(JRTemplateElement template) {
+    Object old = this.cachedTemplates.put(template.getId(), template);
+    if (old == null && log.isDebugEnabled())
+      log.debug("Cached template " + template + " having id " + template.getId()); 
+  }
+  
+  public JRTemplateElement getCachedTemplate(String templateId) {
+    return (JRTemplateElement)this.cachedTemplates.get(templateId);
+  }
+  
+  public boolean isReadOnly() {
+    return this.readOnly;
+  }
+  
+  public void setReadOnly(boolean readOnly) {
+    this.readOnly = readOnly;
+  }
+  
+  public static void register(JRVirtualizationContext context, JasperPrint print) {
+    synchronized (contexts) {
+      contexts.put(print, context);
+    } 
+  }
+  
+  public static JRVirtualizationContext getRegistered(JasperPrint print) {
+    synchronized (contexts) {
+      return (JRVirtualizationContext)contexts.get(print);
+    } 
+  }
+}