[slf4j-dev] svn commit: r128 - slf4j/branches/marker-experiment/src/java/org/slf4j/impl

ceki at slf4j.org ceki at slf4j.org
Wed Jul 13 19:53:53 CEST 2005


Author: ceki
Date: Wed Jul 13 19:53:52 2005
New Revision: 128

Added:
   slf4j/branches/marker-experiment/src/java/org/slf4j/impl/BasicMarker.java
   slf4j/branches/marker-experiment/src/java/org/slf4j/impl/BasicMarkerFactory.java
Log:

A basic implementation of Marker and IMakerFactory implemetnations

Added: slf4j/branches/marker-experiment/src/java/org/slf4j/impl/BasicMarker.java
==============================================================================
--- (empty file)
+++ slf4j/branches/marker-experiment/src/java/org/slf4j/impl/BasicMarker.java	Wed Jul 13 19:53:52 2005
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2004-2005 SLF4J.ORG
+ * Copyright (c) 2004-2005 QOS.ch
+ *
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to  deal in  the Software without  restriction, including
+ * without limitation  the rights to  use, copy, modify,  merge, publish,
+ * distribute, and/or sell copies of  the Software, and to permit persons
+ * to whom  the Software is furnished  to do so, provided  that the above
+ * copyright notice(s) and this permission notice appear in all copies of
+ * the  Software and  that both  the above  copyright notice(s)  and this
+ * permission notice appear in supporting documentation.
+ *
+ * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
+ * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR  A PARTICULAR PURPOSE AND NONINFRINGEMENT
+ * OF  THIRD PARTY  RIGHTS. IN  NO EVENT  SHALL THE  COPYRIGHT  HOLDER OR
+ * HOLDERS  INCLUDED IN  THIS  NOTICE BE  LIABLE  FOR ANY  CLAIM, OR  ANY
+ * SPECIAL INDIRECT  OR CONSEQUENTIAL DAMAGES, OR  ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS  OF USE, DATA OR PROFITS, WHETHER  IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE  OR OTHER TORTIOUS  ACTION, ARISING OUT OF  OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Except as  contained in  this notice, the  name of a  copyright holder
+ * shall not be used in advertising or otherwise to promote the sale, use
+ * or other dealings in this Software without prior written authorization
+ * of the copyright holder.
+ *
+ */
+
+package org.slf4j.impl;
+
+import org.slf4j.Marker;
+
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Vector;
+
+
+/**
+ * @author ceki
+ *
+ * TODO To change the template for this generated type comment go to
+ * Window - Preferences - Java - Code Style - Code Templates
+ */
+public class BasicMarker implements Marker {
+  String name;
+  List children;
+
+  BasicMarker(String name) {
+    this.name = name;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public synchronized void add(Marker child) {
+    if (child == null) {
+      throw new NullPointerException(
+        "Null children cannot be added to a Marker.");
+    }
+    if (children == null) {
+      children = new Vector();
+    }
+    children.add(child);
+  }
+
+  public synchronized boolean hasChildren() {
+    return ((children != null) && (children.size() > 0));
+  }
+
+  public synchronized Iterator iterator() {
+    if (children != null) {
+      return children.iterator();
+    } else {
+      return Collections.EMPTY_LIST.iterator();
+    }
+  }
+
+  /**
+   * 
+   */
+  public synchronized boolean remove(Marker markerToRemove) {
+    if (children == null) {
+      return false;
+    }
+
+    int size = children.size();
+    for (int i = 0; i < size; i++) {
+      Marker m = (Marker) children.get(i);
+      if( m == markerToRemove) {
+          return false;
+      }
+    }
+    // could not find markerToRemove
+    return false;
+  }
+}

Added: slf4j/branches/marker-experiment/src/java/org/slf4j/impl/BasicMarkerFactory.java
==============================================================================
--- (empty file)
+++ slf4j/branches/marker-experiment/src/java/org/slf4j/impl/BasicMarkerFactory.java	Wed Jul 13 19:53:52 2005
@@ -0,0 +1,73 @@
+/* 
+ * Copyright (c) 2004-2005 SLF4J.ORG
+ * Copyright (c) 2004-2005 QOS.ch
+ *
+ * All rights reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to  deal in  the Software without  restriction, including
+ * without limitation  the rights to  use, copy, modify,  merge, publish,
+ * distribute, and/or sell copies of  the Software, and to permit persons
+ * to whom  the Software is furnished  to do so, provided  that the above
+ * copyright notice(s) and this permission notice appear in all copies of
+ * the  Software and  that both  the above  copyright notice(s)  and this
+ * permission notice appear in supporting documentation.
+ * 
+ * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
+ * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR  A PARTICULAR PURPOSE AND NONINFRINGEMENT
+ * OF  THIRD PARTY  RIGHTS. IN  NO EVENT  SHALL THE  COPYRIGHT  HOLDER OR
+ * HOLDERS  INCLUDED IN  THIS  NOTICE BE  LIABLE  FOR ANY  CLAIM, OR  ANY
+ * SPECIAL INDIRECT  OR CONSEQUENTIAL DAMAGES, OR  ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS  OF USE, DATA OR PROFITS, WHETHER  IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE  OR OTHER TORTIOUS  ACTION, ARISING OUT OF  OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ * 
+ * Except as  contained in  this notice, the  name of a  copyright holder
+ * shall not be used in advertising or otherwise to promote the sale, use
+ * or other dealings in this Software without prior written authorization
+ * of the copyright holder.
+ *
+ */
+
+package org.slf4j.impl;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.slf4j.IMarkerFactory;
+import org.slf4j.Marker;
+
+/**
+ * A basic implementation of the {@link IMarkerFactory} implementation 
+ * which creates {@link BasicMarker} instances. <code>BasicMarkerFactory</code> 
+ * keeps track of the marker instances it creates with the help 
+ * of a hashtable.
+ * 
+ * @author Ceki Gulcu
+  */
+public class BasicMarkerFactory implements IMarkerFactory {
+
+  Map markerMap = new HashMap();
+  
+  /**
+   * Manufacture a {@link BasicMarker} instance by name. If the instance has been 
+   * created earlier, return the previously created instance. 
+   * 
+   * @param name the name of the marker to be created
+   * @return a Marker instance
+   */
+  public synchronized Marker getMarker(String name) {
+    if (name == null) {
+      throw new IllegalArgumentException("Marker name cannot be null");
+    }
+
+    Marker marker = (Marker) markerMap.get(name);
+    if (marker == null) {
+      marker = new BasicMarker(name);
+      markerMap.put(name, marker);
+    }
+    return marker;
+  }
+}



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