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Posted to dev@commons.apache.org by sc...@apache.org on 2002/09/08 17:25:04 UTC

cvs commit: jakarta-commons-sandbox/lang ToStringStyle.java ToStringBuilder.java ToStringBuilderTest.java

scolebourne    2002/09/08 08:25:04

  Modified:    lang     ToStringBuilder.java ToStringBuilderTest.java
  Added:       lang     ToStringStyle.java
  Log:
  Updated ToStringBuilder for pluggable output and nulti dimensional array handling
  
  Revision  Changes    Path
  1.2       +198 -333  jakarta-commons-sandbox/lang/ToStringBuilder.java
  
  Index: ToStringBuilder.java
  ===================================================================
  RCS file: /home/cvs/jakarta-commons-sandbox/lang/ToStringBuilder.java,v
  retrieving revision 1.1
  retrieving revision 1.2
  diff -u -r1.1 -r1.2
  --- ToStringBuilder.java	6 Sep 2002 22:42:59 -0000	1.1
  +++ ToStringBuilder.java	8 Sep 2002 15:25:04 -0000	1.2
  @@ -1,9 +1,3 @@
  -import java.util.Arrays;
  -import java.util.Collection;
  -import java.util.Map;
  -
  -
  -
   /* ====================================================================
    * The Apache Software License, Version 1.1
    *
  @@ -58,6 +52,9 @@
    * <http://www.apache.org/>.
    */
   
  +import java.util.Arrays;
  +import java.util.Collection;
  +import java.util.Map;
   /**
    * <code>ToString</code> generation routine.
    * <p>
  @@ -100,130 +97,105 @@
       /**
        * Current toString buffer
        */
  -    private final StringBuffer buffer = new StringBuffer(512);
  +    private final StringBuffer buffer;
  +    /**
  +     * Is it full detail
  +     */
  +    private final ToStringStyle style;
       /**
  -     * Is it the first parameter
  +     * The object being output
        */
  -    private boolean first = true;
  +    private final Object object;
       
       /**
        * Constructor for ToStringBuilder.
  -     * This constructor outputs full class names and the hashcode.
  +     * This constructor outputs using a default style.
        * 
        * @param object  the object to build a toString for, must not be null
        * @throws IllegalArgumentException  if the object passed in is null
        */
       public ToStringBuilder(Object object) {
  -        this(object, true, true);
  +        this(object, null, null);
  +    }
  +    
  +    /**
  +     * Constructor for ToStringBuilder specifying the output style.
  +     * 
  +     * @param object  the object to build a toString for, must not be null
  +     * @param style  the style of the toString to create
  +     * @param buffer  the string buffer to populate
  +     * @throws IllegalArgumentException  if the object passed in is null
  +     */
  +    public ToStringBuilder(Object object, ToStringStyle style) {
  +        this(object, style, null);
       }
       
       /**
        * Constructor for ToStringBuilder.
        * 
        * @param object  the object to build a toString for, must not be null
  -     * @param fullClassName  whether to output the full, or a short class name
  -     * @param identityHashCode  whether to output the identity hashcode as in the default toString
  +     * @param style  the style of the toString to create
  +     * @param buffer  the string buffer to populate
        * @throws IllegalArgumentException  if the object passed in is null
        */
  -    public ToStringBuilder(Object object, boolean fullClassName, boolean identityHashCode) {
  +    public ToStringBuilder(Object object, ToStringStyle style, StringBuffer buffer) {
           super();
           if (object == null) {
               throw new IllegalArgumentException("The object to create a toString for must not be null");
           }
  -        if (fullClassName) {
  -            buffer.append(object.getClass().getName());
  -        } else {
  -            String name = object.getClass().getName();
  -            int pos = name.lastIndexOf('.');
  -            if (pos >= 0) {
  -                name = name.substring(pos + 1);
  -            }
  -            buffer.append(name);
  +        if (style == null) {
  +            style = ToStringStyle.DEFAULT_STYLE;
           }
  -        if (identityHashCode) {
  -            buffer.append('@');
  -            buffer.append(Integer.toHexString(System.identityHashCode(object)));
  -            buffer.append('[');
  +        if (buffer == null) {
  +            buffer = new StringBuffer(512);
           }
  +        this.buffer = buffer;
  +        this.style = style;
  +        this.object = object;
  +        
  +        style.appendStart(buffer, object);
       }
       
  -    /**
  -     * Append the basic info to the buffer.
  -     * 
  -     * @param fieldName  the field name
  -     */
  -    private void appendBasics(String fieldName) {
  -        if (first) {
  -            first = false;
  -        } else {
  -            buffer.append(',');
  -        }
  -        if (fieldName != null) {
  -            buffer.append(fieldName);
  -            buffer.append('=');
  -        }
  -    }
  +    //----------------------------------------------------------------------------
       
       /**
  -     * Append to the toString an Object value, printing the full 
  -     * toString of the object passed in.
  +     * Append to the toString an Object value.
        *
        * @param value  the value to add to the toString
        * @return this
        */
       public ToStringBuilder append(Object object) {
  -        return append(object, null, true);
  +        style.append(buffer, null, object, null);
  +        return this;
       }
   
       /**
  -     * Append to the toString an Object value, printing the full 
  -     * toString of the object passed in.
  +     * Append to the toString an Object value.
        *
        * @param value  the value to add to the toString
        * @param fieldName  the field name
        * @return this
        */
  -    public ToStringBuilder append(Object object, String fieldName) {
  -        return append(object, fieldName, true);
  +    public ToStringBuilder append(String fieldName, Object object) {
  +        style.append(buffer, fieldName, object, null);
  +        return this;
       }
   
       /**
        * Append to the toString an Object value.
  -     * <p>
  -     * A boolean parameter controls the level of detail to show. Setting true
  -     * will output the full toString of the object. Setting false will output
  -     * a &lt;linked&gt; indicator if non null, except for Collection, Map and
  -     * Arrays where the size is output.
        *
        * @param value  the value to add to the toString
        * @param fieldName  the field name
        * @param fullDetail  true for detail, false for summary info
        * @return this
        */
  -    public ToStringBuilder append(Object object, String fieldName, boolean fullDetail) {
  -        appendBasics(fieldName);
  -        if (object == null) {
  -            buffer.append("<null>");
  -        } else if (fullDetail) {
  -            buffer.append(object);
  -        } else if (object instanceof Collection) {
  -            buffer.append("<size=");
  -            buffer.append(((Collection) object).size());
  -            buffer.append('>');
  -        } else if (object instanceof Map) {
  -            buffer.append("<size=");
  -            buffer.append(((Map) object).size());
  -            buffer.append('>');
  -        } else if (object instanceof Object[]) {
  -            buffer.append("<size=");
  -            buffer.append(((Object[]) object).length);
  -            buffer.append('>');
  -        } else {
  -            buffer.append("<linked>");
  -        }
  +    public ToStringBuilder append(String fieldName, Object object, boolean fullDetail) {
  +        style.append(buffer, fieldName, object, new Boolean(fullDetail));
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a long value.
        *
  @@ -231,7 +203,8 @@
        * @return this
        */
       public ToStringBuilder append(long value) {
  -        return append(value, null);
  +        style.append(buffer, null, value);
  +        return this;
       }
   
       /**
  @@ -241,12 +214,13 @@
        * @param fieldName  the field name
        * @return this
        */
  -    public ToStringBuilder append(long value, String fieldName) {
  -        appendBasics(fieldName);
  -        buffer.append(value);
  +    public ToStringBuilder append(String fieldName, long value) {
  +        style.append(buffer, fieldName, value);
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString an int value.
        *
  @@ -254,7 +228,8 @@
        * @return this
        */
       public ToStringBuilder append(int value) {
  -        return append(value, null);
  +        style.append(buffer, null, value);
  +        return this;
       }
   
       /**
  @@ -264,12 +239,13 @@
        * @param fieldName  the field name
        * @return this
        */
  -    public ToStringBuilder append(int value, String fieldName) {
  -        appendBasics(fieldName);
  -        buffer.append(value);
  +    public ToStringBuilder append(String fieldName, int value) {
  +        style.append(buffer, fieldName, value);
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a short value.
        *
  @@ -277,7 +253,8 @@
        * @return this
        */
       public ToStringBuilder append(short value) {
  -        return append(value, null);
  +        style.append(buffer, null, value);
  +        return this;
       }
   
       /**
  @@ -287,12 +264,13 @@
        * @param fieldName  the field name
        * @return this
        */
  -    public ToStringBuilder append(short value, String fieldName) {
  -        appendBasics(fieldName);
  -        buffer.append(value);
  +    public ToStringBuilder append(String fieldName, short value) {
  +        style.append(buffer, fieldName, value);
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a char value.
        *
  @@ -300,7 +278,8 @@
        * @return this
        */
       public ToStringBuilder append(char value) {
  -        return append(value, null);
  +        style.append(buffer, null, value);
  +        return this;
       }
   
       /**
  @@ -310,12 +289,13 @@
        * @param fieldName  the field name
        * @return this
        */
  -    public ToStringBuilder append(char value, String fieldName) {
  -        appendBasics(fieldName);
  -        buffer.append(value);
  +    public ToStringBuilder append(String fieldName, char value) {
  +        style.append(buffer, fieldName, value);
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a byte value.
        *
  @@ -323,7 +303,8 @@
        * @return this
        */
       public ToStringBuilder append(byte value) {
  -        return append(value, null);
  +        style.append(buffer, null, value);
  +        return this;
       }
   
       /**
  @@ -333,12 +314,13 @@
        * @param fieldName  the field name
        * @return this
        */
  -    public ToStringBuilder append(byte value, String fieldName) {
  -        appendBasics(fieldName);
  -        buffer.append(value);
  +    public ToStringBuilder append(String fieldName, byte value) {
  +        style.append(buffer, fieldName, value);
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a double value.
        *
  @@ -346,7 +328,8 @@
        * @return this
        */
       public ToStringBuilder append(double value) {
  -        return append(value, null);
  +        style.append(buffer, null, value);
  +        return this;
       }
   
       /**
  @@ -356,12 +339,13 @@
        * @param fieldName  the field name
        * @return this
        */
  -    public ToStringBuilder append(double value, String fieldName) {
  -        appendBasics(fieldName);
  -        buffer.append(value);
  +    public ToStringBuilder append(String fieldName, double value) {
  +        style.append(buffer, fieldName, value);
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a float value.
        *
  @@ -369,7 +353,8 @@
        * @return this
        */
       public ToStringBuilder append(float value) {
  -        return append(value, null);
  +        style.append(buffer, null, value);
  +        return this;
       }
   
       /**
  @@ -379,12 +364,13 @@
        * @param fieldName  the field name
        * @return this
        */
  -    public ToStringBuilder append(float value, String fieldName) {
  -        appendBasics(fieldName);
  -        buffer.append(value);
  +    public ToStringBuilder append(String fieldName, float value) {
  +        style.append(buffer, fieldName, value);
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a boolean value.
        *
  @@ -392,7 +378,8 @@
        * @return this
        */
       public ToStringBuilder append(boolean value) {
  -        return append(value, null);
  +        style.append(buffer, null, value);
  +        return this;
       }
   
       /**
  @@ -402,522 +389,400 @@
        * @param fieldName  the field name
        * @return this
        */
  -    public ToStringBuilder append(boolean value, String fieldName) {
  -        appendBasics(fieldName);
  -        buffer.append(value);
  +    public ToStringBuilder append(String fieldName, boolean value) {
  +        style.append(buffer, fieldName, value);
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString an Object array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @return this
        */
       public ToStringBuilder append(Object[] array) {
  -        return append(array, null, true);
  +        style.append(buffer, null, array, null);
  +        return this;
       }
   
       /**
        * Append to the toString an Object array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @return this
        */
  -    public ToStringBuilder append(Object[] array, String fieldName) {
  -        return append(array, fieldName, true);
  +    public ToStringBuilder append(String fieldName, Object[] array) {
  +        style.append(buffer, fieldName, array, null);
  +        return this;
       }
   
       /**
        * Append to the toString an Object array.
        * <p>
        * A boolean parameter controls the level of detail to show. Setting true
  -     * will output the full toString of each array element. Setting false will
  -     * output the size of the array.
  +     * will output the array in full. Setting false will output a summary,
  +     * typically the size of the array.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @param fullDetail  true for detail, false for summary info
        * @return this
        */
  -    public ToStringBuilder append(Object[] array, String fieldName, boolean fullDetail) {
  -        appendBasics(fieldName);
  -        if (array == null) {
  -            buffer.append("<null>");
  -        } else if (fullDetail) {
  -            buffer.append('[');
  -            for (int i = 0; i < array.length; i++) {
  -                if (array[i] == null) {
  -                    buffer.append("<null>");
  -                } else {
  -                    buffer.append(array[i]);
  -                }
  -            }
  -            buffer.append(']');
  -        } else {
  -            buffer.append("<size=");
  -            buffer.append(array.length);
  -            buffer.append('>');
  -        }
  +    public ToStringBuilder append(String fieldName, Object[] array, boolean fullDetail) {
  +        style.append(buffer, fieldName, array, new Boolean(fullDetail));
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a long array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @return this
        */
       public ToStringBuilder append(long[] array) {
  -        return append(array, null, true);
  +        style.append(buffer, null, array, null);
  +        return this;
       }
   
       /**
        * Append a hashCode for a long array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the hashCode
        * @return this
        */
  -    public ToStringBuilder append(long[] array, String fieldName) {
  -        return append(array, fieldName, true);
  +    public ToStringBuilder append(String fieldName, long[] array) {
  +        style.append(buffer, fieldName, array, null);
  +        return this;
       }
   
       /**
        * Append to the toString a long array.
        * <p>
        * A boolean parameter controls the level of detail to show. Setting true
  -     * will output the full toString of each array element. Setting false will
  -     * output the size of the array.
  +     * will output the array in full. Setting false will output a summary,
  +     * typically the size of the array.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @param fullDetail  true for detail, false for summary info
        * @return this
        */
  -    public ToStringBuilder append(long[] array, String fieldName, boolean fullDetail) {
  -        appendBasics(fieldName);
  -        if (array == null) {
  -            buffer.append("<null>");
  -        } else if (fullDetail) {
  -            buffer.append('[');
  -            for (int i = 0; i < array.length; i++) {
  -                buffer.append(array[i]);
  -            }
  -            buffer.append(']');
  -        } else {
  -            buffer.append("<size=");
  -            buffer.append(array.length);
  -            buffer.append('>');
  -        }
  +    public ToStringBuilder append(String fieldName, long[] array, boolean fullDetail) {
  +        style.append(buffer, fieldName, array, new Boolean(fullDetail));
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a int array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @return this
        */
       public ToStringBuilder append(int[] array) {
  -        return append(array, null, true);
  +        style.append(buffer, null, array, null);
  +        return this;
       }
   
       /**
        * Append a hashCode for an int array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the hashCode
        * @return this
        */
  -    public ToStringBuilder append(int[] array, String fieldName) {
  -        return append(array, fieldName, true);
  +    public ToStringBuilder append(String fieldName, int[] array) {
  +        style.append(buffer, fieldName, array, null);
  +        return this;
       }
   
       /**
        * Append to the toString an int array.
        * <p>
        * A boolean parameter controls the level of detail to show. Setting true
  -     * will output the full toString of each array element. Setting false will
  -     * output the size of the array.
  +     * will output the array in full. Setting false will output a summary,
  +     * typically the size of the array.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @param fullDetail  true for detail, false for summary info
        * @return this
        */
  -    public ToStringBuilder append(int[] array, String fieldName, boolean fullDetail) {
  -        appendBasics(fieldName);
  -        if (array == null) {
  -            buffer.append("<null>");
  -        } else if (fullDetail) {
  -            buffer.append('[');
  -            for (int i = 0; i < array.length; i++) {
  -                buffer.append(array[i]);
  -            }
  -            buffer.append(']');
  -        } else {
  -            buffer.append("<size=");
  -            buffer.append(array.length);
  -            buffer.append('>');
  -        }
  +    public ToStringBuilder append(String fieldName, int[] array, boolean fullDetail) {
  +        style.append(buffer, fieldName, array, new Boolean(fullDetail));
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a short array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @return this
        */
       public ToStringBuilder append(short[] array) {
  -        return append(array, null, true);
  +        style.append(buffer, null, array, null);
  +        return this;
       }
   
       /**
        * Append a hashCode for a short array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the hashCode
        * @return this
        */
  -    public ToStringBuilder append(short[] array, String fieldName) {
  -        return append(array, fieldName, true);
  +    public ToStringBuilder append(String fieldName, short[] array) {
  +        style.append(buffer, fieldName, array, null);
  +        return this;
       }
   
       /**
        * Append to the toString a short array.
        * <p>
        * A boolean parameter controls the level of detail to show. Setting true
  -     * will output the full toString of each array element. Setting false will
  -     * output the size of the array.
  +     * will output the array in full. Setting false will output a summary,
  +     * typically the size of the array.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @param fullDetail  true for detail, false for summary info
        * @return this
        */
  -    public ToStringBuilder append(short[] array, String fieldName, boolean fullDetail) {
  -        appendBasics(fieldName);
  -        if (array == null) {
  -            buffer.append("<null>");
  -        } else if (fullDetail) {
  -            buffer.append('[');
  -            for (int i = 0; i < array.length; i++) {
  -                buffer.append(array[i]);
  -            }
  -            buffer.append(']');
  -        } else {
  -            buffer.append("<size=");
  -            buffer.append(array.length);
  -            buffer.append('>');
  -        }
  +    public ToStringBuilder append(String fieldName, short[] array, boolean fullDetail) {
  +        style.append(buffer, fieldName, array, new Boolean(fullDetail));
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a char array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @return this
        */
       public ToStringBuilder append(char[] array) {
  -        return append(array, null, true);
  +        style.append(buffer, null, array, null);
  +        return this;
       }
   
       /**
        * Append a hashCode for a char array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the hashCode
        * @return this
        */
  -    public ToStringBuilder append(char[] array, String fieldName) {
  -        return append(array, fieldName, true);
  +    public ToStringBuilder append(String fieldName, char[] array) {
  +        style.append(buffer, fieldName, array, null);
  +        return this;
       }
   
       /**
        * Append to the toString a char array.
        * <p>
        * A boolean parameter controls the level of detail to show. Setting true
  -     * will output the full toString of each array element. Setting false will
  -     * output the size of the array.
  +     * will output the array in full. Setting false will output a summary,
  +     * typically the size of the array.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @param fullDetail  true for detail, false for summary info
        * @return this
        */
  -    public ToStringBuilder append(char[] array, String fieldName, boolean fullDetail) {
  -        appendBasics(fieldName);
  -        if (array == null) {
  -            buffer.append("<null>");
  -        } else if (fullDetail) {
  -            buffer.append('[');
  -            for (int i = 0; i < array.length; i++) {
  -                buffer.append(array[i]);
  -            }
  -            buffer.append(']');
  -        } else {
  -            buffer.append("<size=");
  -            buffer.append(array.length);
  -            buffer.append('>');
  -        }
  +    public ToStringBuilder append(String fieldName, char[] array, boolean fullDetail) {
  +        style.append(buffer, fieldName, array, new Boolean(fullDetail));
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a byte array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @return this
        */
       public ToStringBuilder append(byte[] array) {
  -        return append(array, null, true);
  +        style.append(buffer, null, array, null);
  +        return this;
       }
   
       /**
        * Append a hashCode for a byte array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the hashCode
        * @return this
        */
  -    public ToStringBuilder append(byte[] array, String fieldName) {
  -        return append(array, fieldName, true);
  +    public ToStringBuilder append(String fieldName, byte[] array) {
  +        style.append(buffer, fieldName, array, null);
  +        return this;
       }
   
       /**
        * Append to the toString a byte array.
        * <p>
        * A boolean parameter controls the level of detail to show. Setting true
  -     * will output the full toString of each array element. Setting false will
  -     * output the size of the array.
  +     * will output the array in full. Setting false will output a summary,
  +     * typically the size of the array.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @param fullDetail  true for detail, false for summary info
        * @return this
        */
  -    public ToStringBuilder append(byte[] array, String fieldName, boolean fullDetail) {
  -        appendBasics(fieldName);
  -        if (array == null) {
  -            buffer.append("<null>");
  -        } else if (fullDetail) {
  -            buffer.append('[');
  -            for (int i = 0; i < array.length; i++) {
  -                buffer.append(array[i]);
  -            }
  -            buffer.append(']');
  -        } else {
  -            buffer.append("<size=");
  -            buffer.append(array.length);
  -            buffer.append('>');
  -        }
  +    public ToStringBuilder append(String fieldName, byte[] array, boolean fullDetail) {
  +        style.append(buffer, fieldName, array, new Boolean(fullDetail));
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a double array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @return this
        */
       public ToStringBuilder append(double[] array) {
  -        return append(array, null, true);
  +        style.append(buffer, null, array, null);
  +        return this;
       }
   
       /**
        * Append a hashCode for a double array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the hashCode
        * @return this
        */
  -    public ToStringBuilder append(double[] array, String fieldName) {
  -        return append(array, fieldName, true);
  +    public ToStringBuilder append(String fieldName, double[] array) {
  +        style.append(buffer, fieldName, array, null);
  +        return this;
       }
   
       /**
        * Append to the toString a double array.
        * <p>
        * A boolean parameter controls the level of detail to show. Setting true
  -     * will output the full toString of each array element. Setting false will
  -     * output the size of the array.
  +     * will output the array in full. Setting false will output a summary,
  +     * typically the size of the array.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @param fullDetail  true for detail, false for summary info
        * @return this
        */
  -    public ToStringBuilder append(double[] array, String fieldName, boolean fullDetail) {
  -        appendBasics(fieldName);
  -        if (array == null) {
  -            buffer.append("<null>");
  -        } else if (fullDetail) {
  -            buffer.append('[');
  -            for (int i = 0; i < array.length; i++) {
  -                buffer.append(array[i]);
  -            }
  -            buffer.append(']');
  -        } else {
  -            buffer.append("<size=");
  -            buffer.append(array.length);
  -            buffer.append('>');
  -        }
  +    public ToStringBuilder append(String fieldName, double[] array, boolean fullDetail) {
  +        style.append(buffer, fieldName, array, new Boolean(fullDetail));
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a float array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @return this
        */
       public ToStringBuilder append(float[] array) {
  -        return append(array, null, true);
  +        style.append(buffer, null, array, null);
  +        return this;
       }
   
       /**
        * Append a hashCode for a float array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the hashCode
        * @return this
        */
  -    public ToStringBuilder append(float[] array, String fieldName) {
  -        return append(array, fieldName, true);
  +    public ToStringBuilder append(String fieldName, float[] array) {
  +        style.append(buffer, fieldName, array, null);
  +        return this;
       }
   
       /**
        * Append to the toString a float array.
        * <p>
        * A boolean parameter controls the level of detail to show. Setting true
  -     * will output the full toString of each array element. Setting false will
  -     * output the size of the array.
  +     * will output the array in full. Setting false will output a summary,
  +     * typically the size of the array.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @param fullDetail  true for detail, false for summary info
        * @return this
        */
  -    public ToStringBuilder append(float[] array, String fieldName, boolean fullDetail) {
  -        appendBasics(fieldName);
  -        if (array == null) {
  -            buffer.append("<null>");
  -        } else if (fullDetail) {
  -            buffer.append('[');
  -            for (int i = 0; i < array.length; i++) {
  -                buffer.append(array[i]);
  -            }
  -            buffer.append(']');
  -        } else {
  -            buffer.append("<size=");
  -            buffer.append(array.length);
  -            buffer.append('>');
  -        }
  +    public ToStringBuilder append(String fieldName, float[] array, boolean fullDetail) {
  +        style.append(buffer, fieldName, array, new Boolean(fullDetail));
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Append to the toString a boolean array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @return this
        */
       public ToStringBuilder append(boolean[] array) {
  -        return append(array, null, true);
  +        style.append(buffer, null, array, null);
  +        return this;
       }
   
       /**
        * Append a hashCode for a boolean array.
  -     * <p>
  -     * The array will be output in full.
        *
        * @param array  the array to add to the hashCode
        * @return this
        */
  -    public ToStringBuilder append(boolean[] array, String fieldName) {
  -        return append(array, fieldName, true);
  +    public ToStringBuilder append(String fieldName, boolean[] array) {
  +        style.append(buffer, fieldName, array, null);
  +        return this;
       }
   
       /**
        * Append to the toString a boolean array.
        * <p>
        * A boolean parameter controls the level of detail to show. Setting true
  -     * will output the full toString of each array element. Setting false will
  -     * output the size of the array.
  +     * will output the array in full. Setting false will output a summary,
  +     * typically the size of the array.
        *
        * @param array  the array to add to the toString
        * @param fieldName  the field name
        * @param fullDetail  true for detail, false for summary info
        * @return this
        */
  -    public ToStringBuilder append(boolean[] array, String fieldName, boolean fullDetail) {
  -        appendBasics(fieldName);
  -        if (array == null) {
  -            buffer.append("<null>");
  -        } else if (fullDetail) {
  -            buffer.append('[');
  -            for (int i = 0; i < array.length; i++) {
  -                buffer.append(array[i]);
  -            }
  -            buffer.append(']');
  -        } else {
  -            buffer.append("<size=");
  -            buffer.append(array.length);
  -            buffer.append('>');
  -        }
  +    public ToStringBuilder append(String fieldName, boolean[] array, boolean fullDetail) {
  +        style.append(buffer, fieldName, array, new Boolean(fullDetail));
           return this;
       }
   
  +    //----------------------------------------------------------------------------
  +    
       /**
        * Return the built toString
        * 
        * @return the String toString
        */    
       public String toString() {
  -        buffer.append(']');
  -        String result = buffer.toString();
  -        buffer.setLength(buffer.length() - 1);
  -        return result;
  +        style.appendEnd(buffer, object);
  +        return buffer.toString();
       }
   
   }
  
  
  
  1.2       +28 -28    jakarta-commons-sandbox/lang/ToStringBuilderTest.java
  
  Index: ToStringBuilderTest.java
  ===================================================================
  RCS file: /home/cvs/jakarta-commons-sandbox/lang/ToStringBuilderTest.java,v
  retrieving revision 1.1
  retrieving revision 1.2
  diff -u -r1.1 -r1.2
  --- ToStringBuilderTest.java	6 Sep 2002 22:42:59 -0000	1.1
  +++ ToStringBuilderTest.java	8 Sep 2002 15:25:04 -0000	1.2
  @@ -52,7 +52,7 @@
   
       public void testConstructorEx2() {
           try {
  -            new ToStringBuilder(null, false, false);
  +            new ToStringBuilder(null, null, null);
               
           } catch (IllegalArgumentException ex) {
               return;
  @@ -65,64 +65,64 @@
           Integer i4 = new Integer(4);
           assertEquals(baseStr + "[<null>]", new ToStringBuilder(base).append((Object) null).toString());
           assertEquals(baseStr + "[3]", new ToStringBuilder(base).append(i3).toString());
  -        assertEquals(baseStr + "[a=<null>]", new ToStringBuilder(base).append((Object) null, "a").toString());
  -        assertEquals(baseStr + "[a=3]", new ToStringBuilder(base).append(i3, "a").toString());
  -        assertEquals(baseStr + "[a=3,b=4]", new ToStringBuilder(base).append(i3, "a").append(i4, "b").toString());
  -        assertEquals(baseStr + "[a=<linked>]", new ToStringBuilder(base).append(i3, "a", false).toString());
  -        assertEquals(baseStr + "[a=<size=0>]", new ToStringBuilder(base).append(new ArrayList(), "a", false).toString());
  -        assertEquals(baseStr + "[a=[]]", new ToStringBuilder(base).append(new ArrayList(), "a", true).toString());
  -        assertEquals(baseStr + "[a=<size=0>]", new ToStringBuilder(base).append(new HashMap(), "a", false).toString());
  -        assertEquals(baseStr + "[a={}]", new ToStringBuilder(base).append(new HashMap(), "a", true).toString());
  -        assertEquals(baseStr + "[a=<size=0>]", new ToStringBuilder(base).append(new String[0], "a", false).toString());
  -        assertEquals(baseStr + "[a=[]]", new ToStringBuilder(base).append(new String[0], "a", true).toString());
  +        assertEquals(baseStr + "[a=<null>]", new ToStringBuilder(base).append("a", (Object) null).toString());
  +        assertEquals(baseStr + "[a=3]", new ToStringBuilder(base).append("a", i3).toString());
  +        assertEquals(baseStr + "[a=3,b=4]", new ToStringBuilder(base).append("a", i3).append("b", i4).toString());
  +        assertEquals(baseStr + "[a=<Integer>]", new ToStringBuilder(base).append("a", i3, false).toString());
  +        assertEquals(baseStr + "[a=<size=0>]", new ToStringBuilder(base).append("a", new ArrayList(), false).toString());
  +        assertEquals(baseStr + "[a=[]]", new ToStringBuilder(base).append("a", new ArrayList(), true).toString());
  +        assertEquals(baseStr + "[a=<size=0>]", new ToStringBuilder(base).append("a", new HashMap(), false).toString());
  +        assertEquals(baseStr + "[a={}]", new ToStringBuilder(base).append("a", new HashMap(), true).toString());
  +        assertEquals(baseStr + "[a=<size=0>]", new ToStringBuilder(base).append("a", (Object) new String[0], false).toString());
  +        assertEquals(baseStr + "[a={}]", new ToStringBuilder(base).append("a", (Object) new String[0], true).toString());
       }
   
       public void testLong() {
           assertEquals(baseStr + "[3]", new ToStringBuilder(base).append(3L).toString());
  -        assertEquals(baseStr + "[a=3]", new ToStringBuilder(base).append(3L, "a").toString());
  -        assertEquals(baseStr + "[a=3,b=4]", new ToStringBuilder(base).append(3L, "a").append(4L, "b").toString());
  +        assertEquals(baseStr + "[a=3]", new ToStringBuilder(base).append("a", 3L).toString());
  +        assertEquals(baseStr + "[a=3,b=4]", new ToStringBuilder(base).append("a", 3L).append("b", 4L).toString());
       }
   
       public void testInt() {
           assertEquals(baseStr + "[3]", new ToStringBuilder(base).append((int) 3).toString());
  -        assertEquals(baseStr + "[a=3]", new ToStringBuilder(base).append((int) 3, "a").toString());
  -        assertEquals(baseStr + "[a=3,b=4]", new ToStringBuilder(base).append((int) 3, "a").append((int) 4, "b").toString());
  +        assertEquals(baseStr + "[a=3]", new ToStringBuilder(base).append("a", (int) 3).toString());
  +        assertEquals(baseStr + "[a=3,b=4]", new ToStringBuilder(base).append("a", (int) 3).append("b", (int) 4).toString());
       }
   
       public void testShort() {
           assertEquals(baseStr + "[3]", new ToStringBuilder(base).append((short) 3).toString());
  -        assertEquals(baseStr + "[a=3]", new ToStringBuilder(base).append((short) 3, "a").toString());
  -        assertEquals(baseStr + "[a=3,b=4]", new ToStringBuilder(base).append((short) 3, "a").append((short) 4, "b").toString());
  +        assertEquals(baseStr + "[a=3]", new ToStringBuilder(base).append("a", (short) 3).toString());
  +        assertEquals(baseStr + "[a=3,b=4]", new ToStringBuilder(base).append("a", (short) 3).append("b", (short) 4).toString());
       }
   
       public void testChar() {
           assertEquals(baseStr + "[A]", new ToStringBuilder(base).append((char) 65).toString());
  -        assertEquals(baseStr + "[a=A]", new ToStringBuilder(base).append((char) 65, "a").toString());
  -        assertEquals(baseStr + "[a=A,b=B]", new ToStringBuilder(base).append((char) 65, "a").append((char) 66, "b").toString());
  +        assertEquals(baseStr + "[a=A]", new ToStringBuilder(base).append("a", (char) 65).toString());
  +        assertEquals(baseStr + "[a=A,b=B]", new ToStringBuilder(base).append("a", (char) 65).append("b", (char) 66).toString());
       }
   
       public void testByte() {
           assertEquals(baseStr + "[3]", new ToStringBuilder(base).append((byte) 3).toString());
  -        assertEquals(baseStr + "[a=3]", new ToStringBuilder(base).append((byte) 3, "a").toString());
  -        assertEquals(baseStr + "[a=3,b=4]", new ToStringBuilder(base).append((byte) 3, "a").append((byte) 4, "b").toString());
  +        assertEquals(baseStr + "[a=3]", new ToStringBuilder(base).append("a", (byte) 3).toString());
  +        assertEquals(baseStr + "[a=3,b=4]", new ToStringBuilder(base).append("a", (byte) 3).append("b", (byte) 4).toString());
       }
   
       public void testDouble() {
           assertEquals(baseStr + "[3.2]", new ToStringBuilder(base).append((double) 3.2).toString());
  -        assertEquals(baseStr + "[a=3.2]", new ToStringBuilder(base).append((double) 3.2, "a").toString());
  -        assertEquals(baseStr + "[a=3.2,b=4.3]", new ToStringBuilder(base).append((double) 3.2, "a").append((double) 4.3, "b").toString());
  +        assertEquals(baseStr + "[a=3.2]", new ToStringBuilder(base).append("a", (double) 3.2).toString());
  +        assertEquals(baseStr + "[a=3.2,b=4.3]", new ToStringBuilder(base).append("a", (double) 3.2).append("b", (double) 4.3).toString());
       }
   
       public void testFloat() {
           assertEquals(baseStr + "[3.2]", new ToStringBuilder(base).append((float) 3.2).toString());
  -        assertEquals(baseStr + "[a=3.2]", new ToStringBuilder(base).append((float) 3.2, "a").toString());
  -        assertEquals(baseStr + "[a=3.2,b=4.3]", new ToStringBuilder(base).append((float) 3.2, "a").append((float) 4.3, "b").toString());
  +        assertEquals(baseStr + "[a=3.2]", new ToStringBuilder(base).append("a", (float) 3.2).toString());
  +        assertEquals(baseStr + "[a=3.2,b=4.3]", new ToStringBuilder(base).append("a", (float) 3.2).append("b", (float) 4.3).toString());
       }
   
       public void testBoolean() {
           assertEquals(baseStr + "[true]", new ToStringBuilder(base).append(true).toString());
  -        assertEquals(baseStr + "[a=true]", new ToStringBuilder(base).append(true, "a").toString());
  -        assertEquals(baseStr + "[a=true,b=false]", new ToStringBuilder(base).append(true, "a").append(false, "b").toString());
  +        assertEquals(baseStr + "[a=true]", new ToStringBuilder(base).append("a", true).toString());
  +        assertEquals(baseStr + "[a=true,b=false]", new ToStringBuilder(base).append("a", true).append("b", false).toString());
       }
   
   //    public void testObjectArray() {
  
  
  
  1.1                  jakarta-commons-sandbox/lang/ToStringStyle.java
  
  Index: ToStringStyle.java
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2002 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Commons", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  import java.util.Collection;
  import java.util.Map;
  
  import org.apache.commons.lang.SystemUtils;
  /**
   * <code>ToStringStyle</code> works with ToStringBuilder to create a
   * toString.
   * <p>
   * These classes are intended to be used as singletons. There is no need 
   * to instantiate a new style each time.
   * <P>
   * This class can be subclassed to provide specific toString designs. The
   * main public interface is via ToStringBuilder.
   * <p>
   * For simple changes, subclasses can change the fields of this class. For
   * more complex changes, the methods can be overridden.
   *
   * @author <a href="mailto:scolebourne@joda.org">Stephen Colebourne</a>
   * @version $Id: ToStringStyle.java,v 1.1 2002/09/08 15:25:04 scolebourne Exp $
   */
  public abstract class ToStringStyle {
      
      /**
       * The default toString style.
       */
      public static final ToStringStyle DEFAULT_STYLE = new DefaultToStringStyle();
      /**
       * The multi line toString style.
       */
      public static final ToStringStyle MULTI_LINE_STYLE = new MultiLineToStringStyle();
      /**
       * The no field names toString style.
       */
      public static final ToStringStyle NO_FIELD_NAMES_STYLE = new NoFieldNameToStringStyle();
      /**
       * The no field names toString style.
       */
      public static final ToStringStyle XML_STYLE = new XMLToStringStyle();
      
      /**
       * The content start '['
       */
      protected String contentStart = "[";
      /**
       * The content end ']'
       */
      protected String contentEnd = "]";
      /**
       * The field name value separator '='
       */
      protected String fieldNameValueSeparator = "=";
      /**
       * The field separator ','
       */
      protected String fieldSeparator = ",";
      /**
       * The array start '{'
       */
      protected String arrayStart = "{";
      /**
       * The array separator ','
       */
      protected String arraySeparator = ",";
      /**
       * The detail for array content
       */
      protected boolean arrayContentDetail = true;
      /**
       * The array end '}'
       */
      protected String arrayEnd = "}";
      /**
       * The value to use when fullDetail is null 'true'
       */
      protected boolean defaultFullDetail = true;
      /**
       * The null text '<null>'
       */
      protected String nullText = "<null>";
      /**
       * The summary size text start '<size'
       */
      protected String sizeStartText = "<size=";
      /**
       * The summary size text start '>'
       */
      protected String sizeEndText = ">";
      
      //----------------------------------------------------------------------------
      
      /**
       * Constructor.
       */
      public ToStringStyle() {
          super();
      }
      
      //----------------------------------------------------------------------------
      
      /**
       * Append the start of data indicator.
       * 
       * @param buffer  the StringBuffer to populate
       * @param object  the object to build a toString for, must not be null
       */
      public void appendStart(StringBuffer buffer, Object object) {
          appendClassName(buffer, object);
          appendIdentityHashCode(buffer, object);
          appendContentStart(buffer);
      }
  
      /**
       * Append the end of data indicator.
       * 
       * @param buffer  the StringBuffer to populate
       * @param object  the object to build a toString for, must not be null
       */
      public void appendEnd(StringBuffer buffer, Object object) {
          appendContentEnd(buffer);
      }
      
      //----------------------------------------------------------------------------
      
      /**
       * Append to the toString an Object value, printing the full 
       * toString of the object passed in.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name
       * @param value  the value to add to the toString
       * @param fullDetail  true for detail, false for summary info, null for style decides
       */
      public void append(StringBuffer buffer, String fieldName, Object value, Boolean fullDetail) {
          appendFieldStart(buffer, fieldName);
          
          if (value == null) {
              appendNullText(buffer, fieldName);
              
          } else {
              appendInternal(buffer, fieldName, value, isFullDetail(fullDetail));
          }
          
          appendFieldEnd(buffer, fieldName);
      }
      
      /**
       * Append to the toString an Object, correctly interpretting its type.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param value  the value to add to the toString, not null
       * @param detail  output detail or not
       */
      protected void appendInternal(StringBuffer buffer, String fieldName, Object value, boolean detail) {
          if (value instanceof Collection) {
              if (detail) {
                  appendDetail(buffer, fieldName, (Collection) value);
              } else {
                  appendSummarySize(buffer, fieldName, ((Collection) value).size());
              }
              
          } else if (value instanceof Map) {
              if (detail) {
                  appendDetail(buffer, fieldName, (Map) value);
              } else {
                  appendSummarySize(buffer, fieldName, ((Map) value).size());
              }
              
          } else if (value instanceof long[]) {
              appendDetail(buffer, fieldName, (long[]) value);
              
  //            } else if (item instanceof int[]) {
  //                appendDetail(buffer, fieldName, (int[]) item);
  //                
  //            } else if (item instanceof short[]) {
  //                appendDetail(buffer, fieldName, (short[]) item);
  //                
  //            } else if (item instanceof byte[]) {
  //                appendDetail(buffer, fieldName, (byte[]) item);
  //                
  //            } else if (item instanceof char[]) {
  //                appendDetail(buffer, fieldName, (char[]) item);
  //                
  //            } else if (item instanceof double[]) {
  //                appendDetail(buffer, fieldName, (double[]) item);
  //                
  //            } else if (item instanceof float[]) {
  //                appendDetail(buffer, fieldName, (float[]) item);
  //                
  //            } else if (item instanceof boolean[]) {
  //                appendDetail(buffer, fieldName, (boolean[]) item);
              
          } else if (value.getClass().isArray()) {
              if (detail) {
                  appendDetail(buffer, fieldName, (Object[]) value);
              } else {
                  appendSummary(buffer, fieldName, (Object[]) value);
              }
              
          } else if (detail) {
              appendDetail(buffer, fieldName, value);
              
          } else {
              appendSummary(buffer, fieldName, value);
          }
      }
      
      /**
       * Append to the toString an Object value, printing the full detail of the object.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param value  the value to add to the toString, not null
       */
      protected void appendDetail(StringBuffer buffer, String fieldName, Object value) {
          buffer.append(value);
      }
      
      /**
       * Append to the toString a Collection.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param coll  the collection to add to the toString, not null
       */
      protected void appendDetail(StringBuffer buffer, String fieldName, Collection coll) {
          buffer.append(coll);
      }
      
      /**
       * Append to the toString a Map.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param map  the maps to add to the toString, not null
       */
      protected void appendDetail(StringBuffer buffer, String fieldName, Map map) {
          buffer.append(map);
      }
      
      /**
       * Append to the toString an Object value, printing a summary of the object.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param value  the value to add to the toString, not null
       */
      protected void appendSummary(StringBuffer buffer, String fieldName, Object value) {
          buffer.append('<');
          buffer.append(getShortClassName(value.getClass()));
          buffer.append('>');
      }
      
      //----------------------------------------------------------------------------
      
      /**
       * Append to the toString a long value.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name
       * @param value  the value to add to the toString
       */
      public void append(StringBuffer buffer, String fieldName, long value) {
          appendFieldStart(buffer, fieldName);
          appendDetail(buffer, fieldName, value);
          appendFieldEnd(buffer, fieldName);
      }
  
      /**
       * Append to the toString a long value.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param value  the value to add to the toString
       */
      protected void appendDetail(StringBuffer buffer, String fieldName, long value) {
          buffer.append(value);
      }
  
      //----------------------------------------------------------------------------
      
      /**
       * Append to the toString an int value.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name
       * @param value  the value to add to the toString
       */
      public void append(StringBuffer buffer, String fieldName, int value) {
          appendFieldStart(buffer, fieldName);
          appendDetail(buffer, fieldName, value);
          appendFieldEnd(buffer, fieldName);
      }
  
      /**
       * Append to the toString an int value.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param value  the value to add to the toString
       */
      protected void appendDetail(StringBuffer buffer, String fieldName, int value) {
          buffer.append(value);
      }
  
      //----------------------------------------------------------------------------
      
      /**
       * Append to the toString a char value.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name
       * @param value  the value to add to the toString
       */
      public void append(StringBuffer buffer, String fieldName, char value) {
          appendFieldStart(buffer, fieldName);
          appendDetail(buffer, fieldName, value);
          appendFieldEnd(buffer, fieldName);
      }
  
      /**
       * Append to the toString a char value.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param value  the value to add to the toString
       */
      protected void appendDetail(StringBuffer buffer, String fieldName, char value) {
          buffer.append(value);
      }
  
      //----------------------------------------------------------------------------
      
      /**
       * Append to the toString a double value.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name
       * @param value  the value to add to the toString
       */
      public void append(StringBuffer buffer, String fieldName, double value) {
          appendFieldStart(buffer, fieldName);
          appendDetail(buffer, fieldName, value);
          appendFieldEnd(buffer, fieldName);
      }
  
      /**
       * Append to the toString a double value.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param value  the value to add to the toString
       */
      protected void appendDetail(StringBuffer buffer, String fieldName, double value) {
          buffer.append(value);
      }
  
      //----------------------------------------------------------------------------
      
      /**
       * Append to the toString a float value.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name
       * @param value  the value to add to the toString
       */
      public void append(StringBuffer buffer, String fieldName, float value) {
          appendFieldStart(buffer, fieldName);
          appendDetail(buffer, fieldName, value);
          appendFieldEnd(buffer, fieldName);
      }
  
      /**
       * Append to the toString a float value.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param value  the value to add to the toString
       */
      protected void appendDetail(StringBuffer buffer, String fieldName, float value) {
          buffer.append(value);
      }
  
      //----------------------------------------------------------------------------
      
      /**
       * Append to the toString a boolean value.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name
       * @param value  the value to add to the toString
       */
      public void append(StringBuffer buffer, String fieldName, boolean value) {
          appendFieldStart(buffer, fieldName);
          appendDetail(buffer, fieldName, value);
          appendFieldEnd(buffer, fieldName);
      }
  
      /**
       * Append to the toString a boolean value.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param value  the value to add to the toString
       */
      protected void appendDetail(StringBuffer buffer, String fieldName, boolean value) {
          buffer.append(value);
      }
  
      /**
       * Append to the toString an Object array.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name
       * @param array  the array to add to the toString
       * @param fullDetail  true for detail, false for summary info, null for style decides
       */
      public void append(StringBuffer buffer, String fieldName, Object[] array, Boolean fullDetail) {
          appendFieldStart(buffer, fieldName);
          
          if (array == null) {
              appendNullText(buffer, fieldName);
              
          } else if (isFullDetail(fullDetail)) {
              appendDetail(buffer, fieldName, array);
              
          } else {
              appendSummary(buffer, fieldName, array);
          }
  
          appendFieldEnd(buffer, fieldName);
      }
  
      //----------------------------------------------------------------------------
      
      /**
       * Append to the toString the detail of an Object array.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param array  the array to add to the toString, not null
       */
      protected void appendDetail(StringBuffer buffer, String fieldName, Object[] array) {
          buffer.append(arrayStart);
          for (int i = 0; i < array.length; i++) {
              Object item = array[i];
              if (i > 0) {
                  buffer.append(arraySeparator);
              }
              if (item == null) {
                  appendNullText(buffer, fieldName);
                  
              } else if (item instanceof long[]) {
                  appendDetail(buffer, fieldName, (long[]) item);
                  
  //            } else if (item instanceof int[]) {
  //                appendDetail(buffer, fieldName, (int[]) item);
  //                
  //            } else if (item instanceof short[]) {
  //                appendDetail(buffer, fieldName, (short[]) item);
  //                
  //            } else if (item instanceof byte[]) {
  //                appendDetail(buffer, fieldName, (byte[]) item);
  //                
  //            } else if (item instanceof char[]) {
  //                appendDetail(buffer, fieldName, (char[]) item);
  //                
  //            } else if (item instanceof double[]) {
  //                appendDetail(buffer, fieldName, (double[]) item);
  //                
  //            } else if (item instanceof float[]) {
  //                appendDetail(buffer, fieldName, (float[]) item);
  //                
  //            } else if (item instanceof boolean[]) {
  //                appendDetail(buffer, fieldName, (boolean[]) item);
                  
              } else if (item.getClass().isArray()) {
                  if (arrayContentDetail) {
                      appendDetail(buffer, fieldName, (Object[]) item);
                  } else {
                      appendSummary(buffer, fieldName, (Object[]) item);
                  }
                  
              } else if (arrayContentDetail) {
                  appendDetail(buffer, fieldName, item);
                  
              } else {
                  appendSummary(buffer, fieldName, item);
              }
          }
          buffer.append(arrayEnd);
      }
  
      /**
       * Append to the toString a summary of an Object array.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param array  the array to add to the toString, not null
       */
      protected void appendSummary(StringBuffer buffer, String fieldName, Object[] array) {
          appendSummarySize(buffer, fieldName, array.length);
      }
  
      //----------------------------------------------------------------------------
      
      /**
       * Append to the toString a long array.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name
       * @param array  the array to add to the toString
       * @param fullDetail  true for detail, false for summary info, null for style decides
       */
      public void append(StringBuffer buffer, String fieldName, long[] array, Boolean fullDetail) {
          appendFieldStart(buffer, fieldName);
          
          if (array == null) {
              appendNullText(buffer, fieldName);
              
          } else if (isFullDetail(fullDetail)) {
              appendDetail(buffer, fieldName, array);
              
          } else {
              appendSummary(buffer, fieldName, array);
          }
  
          appendFieldEnd(buffer, fieldName);
      }
  
      /**
       * Append to the toString the detail of a long array.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param array  the array to add to the toString, not null
       */
      protected void appendDetail(StringBuffer buffer, String fieldName, long[] array) {
          buffer.append(arrayStart);
          for (int i = 0; i < array.length; i++) {
              if (i > 0) {
                  buffer.append(arraySeparator);
              }
              appendDetail(buffer, fieldName, array[i]);
          }
          buffer.append(arrayEnd);
      }
  
      /**
       * Append to the toString a summary of a long array.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param array  the array to add to the toString, not null
       */
      protected void appendSummary(StringBuffer buffer, String fieldName, long[] array) {
          appendSummarySize(buffer, fieldName, array.length);
      }
  
      //----------------------------------------------------------------------------
      
      /**
       * Append the class name.
       * 
       * @param object  the object whose name to output
       */
      protected void appendClassName(StringBuffer buffer, Object object) {
          buffer.append(object.getClass().getName());
      }
  
      /**
       * Append the IdentityHashCode.
       * 
       * @param object  the object whose id to output
       */
      protected void appendIdentityHashCode(StringBuffer buffer, Object object) {
          buffer.append('@');
          buffer.append(Integer.toHexString(System.identityHashCode(object)));
      }
  
      /**
       * Append the content start to the buffer.
       * 
       * @param buffer  the StringBuffer to populate
       */
      protected void appendContentStart(StringBuffer buffer) {
          buffer.append(contentStart);
      }
      
      /**
       * Append the content end to the buffer.
       * 
       * @param buffer  the StringBuffer to populate
       */
      protected void appendContentEnd(StringBuffer buffer) {
          int len = buffer.length();
          int sepLen = fieldSeparator.length();
          if (len > 0 && sepLen > 0 && len >= sepLen && buffer.charAt(len - 1) == fieldSeparator.charAt(sepLen - 1)) {
              buffer.setLength(len - sepLen);
          }
          buffer.append(contentEnd);
      }
      
      /**
       * Append an indicator for null to the buffer.
       * Default output is '<null>'.
       * 
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       */
      protected void appendNullText(StringBuffer buffer, String fieldName) {
          buffer.append(nullText);
      }
      
      /**
       * Append the field separator to the buffer.
       * 
       * @param buffer  the StringBuffer to populate
       */
      protected void appendFieldSeparator(StringBuffer buffer) {
          buffer.append(fieldSeparator);
      }
      
      /**
       * Append the field start to the buffer.
       * 
       * @param buffer  the StringBuffer to populate
       * @param first  is it the first field
       */
      protected void appendFieldStart(StringBuffer buffer, String fieldName) {
          if (fieldName != null) {
              buffer.append(fieldName);
              buffer.append(fieldNameValueSeparator);
          }
      }
      
      /**
       * Append the field end to the buffer.
       * 
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name
       */
      protected void appendFieldEnd(StringBuffer buffer, String fieldName) {
          appendFieldSeparator(buffer);
      }
      
      /**
       * Append to the toString a size summary.
       *
       * @param buffer  the StringBuffer to populate
       * @param fieldName  the field name, typically not used as already appended
       * @param size  the size to append
       */
      protected void appendSummarySize(StringBuffer buffer, String fieldName, int size) {
          buffer.append(sizeStartText);
          buffer.append(size);
          buffer.append(sizeEndText);
      }
  
      /**
       * Is this field to be output in full detail.
       * <p>
       * null defaults to full detail.
       * 
       * @param fullDetail  the detail requested
       */
      protected boolean isFullDetail(Boolean fullDetailRequest) {
          if (fullDetailRequest == null) {
              return defaultFullDetail;
          }
          return fullDetailRequest.booleanValue();
      }
      
      /**
       * Gets the short class name for a class.
       *
       * @param cls  the class to get the short name of
       * @return the short name
       */
      protected String getShortClassName(Class cls) {
          String name = cls.getName();
          int pos = name.lastIndexOf('.');
          if (pos == -1) {
              return name;
          }
          return name.substring(pos + 1);
      }
  
      /**
       * Return a toString
       * 
       * @return debug toString
       */    
      public String toString() {
          return "ToStringStyle";
      }
  
      //----------------------------------------------------------------------------
      
      /**
       * Default ToStringStyle
       */
      public static class DefaultToStringStyle extends ToStringStyle {
      }
      
      /**
       * ToStringStyle that does not print out the field names
       */
      public static class NoFieldNameToStringStyle extends ToStringStyle {
          
          /**
           * @see ToStringStyle#appendFieldStart(StringBuffer, String)
           */
          protected void appendFieldStart(StringBuffer buffer, String fieldName) {
              // do nothing
          }
  
      }
      
      /**
       * ToStringStyle that outputs on multiple lines
       */
      public static class MultiLineToStringStyle extends ToStringStyle {
  
          /**
           * @see ToStringStyle#appendContentStart(StringBuffer)
           */
          protected void appendContentStart(StringBuffer buffer) {
              super.appendContentStart(buffer);
              appendFieldSeparator(buffer);
          }
  
          /**
           * @see ToStringStyle#appendFieldSeparator(StringBuffer)
           */
          protected void appendFieldSeparator(StringBuffer buffer) {
              buffer.append(SystemUtils.LINE_SEPARATOR);
              buffer.append("  ");
          }
  
          /**
           * @see ToStringStyle#appendContentEnd(StringBuffer)
           */
          protected void appendContentEnd(StringBuffer buffer) {
              int len = buffer.length();
              if (len > 2 && buffer.charAt(len - 1) == ' ' && buffer.charAt(len - 2) == ' ') {
                  buffer.setLength(len - 2);
              }
              buffer.append(contentEnd);
          }
  
      }
      
      /**
       * ToStringStyle that outputs in XML style
       */
      public static class XMLToStringStyle extends ToStringStyle {
          
          /**
           * Constructor
           */
          public XMLToStringStyle() {
              super();
              nullText = "null";
              sizeStartText = "size=";
              sizeEndText = "";
          }
          
          /**
           * @see ToStringStyle#appendStart(StringBuffer, Object)
           */
          public void appendStart(StringBuffer buffer, Object object) {
              buffer.append('<');
              buffer.append(getShortClassName(object.getClass()));
              buffer.append(" class=\"");
              appendClassName(buffer, object);
              buffer.append("\" hashCode=\"");
              appendIdentityHashCode(buffer, object);
              buffer.append("\">");
              buffer.append(SystemUtils.LINE_SEPARATOR);
              buffer.append("  ");
          }
  
          /**
           * @see ToStringStyle#appendFieldStart(StringBuffer, String)
           */
          protected void appendFieldStart(StringBuffer buffer, String fieldName) {
              buffer.append('<');
              buffer.append(fieldName);
              buffer.append('>');
          }
  
          /**
           * @see ToStringStyle#appendFieldEnd(StringBuffer, String)
           */
          protected void appendFieldEnd(StringBuffer buffer, String fieldName) {
              buffer.append("</");
              buffer.append(fieldName);
              buffer.append('>');
              buffer.append(SystemUtils.LINE_SEPARATOR);
              buffer.append("  ");
          }
  
          /**
           * @see ToStringStyle#appendEnd(StringBuffer, Object)
           */
          public void appendEnd(StringBuffer buffer, Object object) {
              int len = buffer.length();
              if (len > 2 && buffer.charAt(len - 1) == ' ' && buffer.charAt(len - 2) == ' ') {
                  buffer.setLength(len - 2);
              }
              buffer.append("</");
              buffer.append(getShortClassName(object.getClass()));
              buffer.append("\">");
          }
  
      }
      
  }
  
  
  

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