JAL-3541 selectively merged build.gradle and gradle.properties

[jalview.git] / srcjar_unused / org / apache / log4j / Layout.java

diff --git a/srcjar_unused/org/apache/log4j/Layout.java b/srcjar_unused/org/apache/log4j/Layout.java
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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.log4j;
+
+import org.apache.log4j.spi.OptionHandler;
+import org.apache.log4j.spi.LoggingEvent;
+
+/**
+   Extend this abstract class to create your own log layout format.
+   
+   @author Ceki Gülcü
+
+*/
+  
+public abstract class Layout implements OptionHandler {
+
+  // Note that the line.separator property can be looked up even by
+  // applets.
+  public final static String LINE_SEP = System.getProperty("line.separator");
+  public final static int LINE_SEP_LEN  = LINE_SEP.length();
+
+
+  /**
+     Implement this method to create your own layout format.
+  */
+  abstract
+  public
+  String format(LoggingEvent event);
+
+  /**
+     Returns the content type output by this layout. The base class
+     returns "text/plain". 
+  */
+  public
+  String getContentType() {
+    return "text/plain";
+  }
+
+  /**
+     Returns the header for the layout format. The base class returns
+     <code>null</code>.  */
+  public
+  String getHeader() {
+    return null;
+  }
+
+  /**
+     Returns the footer for the layout format. The base class returns
+     <code>null</code>.  */
+  public
+  String getFooter() {
+    return null;
+  }
+
+
+
+  /**
+     If the layout handles the throwable object contained within
+     {@link LoggingEvent}, then the layout should return
+     <code>false</code>. Otherwise, if the layout ignores throwable
+     object, then the layout should return <code>true</code>.
+     If ignoresThrowable is true, the appender is responsible for
+     rendering the throwable.
+
+     <p>The {@link SimpleLayout}, {@link TTCCLayout}, {@link
+     PatternLayout} all return <code>true</code>. The {@link
+     org.apache.log4j.xml.XMLLayout} returns <code>false</code>.
+
+     @since 0.8.4 */
+  abstract
+  public
+  boolean ignoresThrowable();
+
+}