net.hasor.utils.builder.ToStringStyle Maven / Gradle / Ivy
/*
* 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 net.hasor.utils.builder;
import net.hasor.utils.ClassUtils;
import net.hasor.utils.ObjectUtils;
import java.io.Serializable;
import java.lang.reflect.Array;
import java.util.Collection;
import java.util.Map;
import java.util.WeakHashMap;
/**
* Controls String formatting for {@link ToStringBuilder}.
* The main public interface is always via ToStringBuilder.
*
* These classes are intended to be used as Singletons.
* There is no need to instantiate a new style each time. A program
* will generally use one of the predefined constants on this class.
* Alternatively, the {@link StandardToStringStyle} class can be used
* to set the individual settings. Thus most styles can be achieved
* without subclassing.
*
* If required, a subclass can override as many or as few of the
* methods as it requires. Each object type (from boolean
* to long to Object to int[]) has
* its own methods to output it. Most have two versions, detail and summary.
*
*
For example, the detail version of the array based methods will
* output the whole array, whereas the summary method will just output
* the array length.
*
* If you want to format the output of certain objects, such as dates, you
* must create a subclass and override a method.
*
* public class MyStyle extends ToStringStyle {
* protected void appendDetail(StringBuffer buffer, String fieldName, Object value) {
* if (value instanceof Date) {
* value = new SimpleDateFormat("yyyy-MM-dd").format(value);
* }
* buffer.append(value);
* }
* }
*
*
*
* @author Apache Software Foundation
* @author Gary Gregory
* @author Pete Gieser
* @author Masato Tezuka
* @since 1.0
* @version $Id: ToStringStyle.java 907168 2010-02-06 03:33:50Z mbenson $
*/
public abstract class ToStringStyle implements Serializable {
/**
* The default toString style. Using the Using the Person
* example from {@link ToStringBuilder}, the output would look like this:
*
*
* Person@182f0db[name=John Doe,age=33,smoker=false]
*
*/
public static final ToStringStyle DEFAULT_STYLE = new DefaultToStringStyle();
/**
* The multi line toString style. Using the Using the Person
* example from {@link ToStringBuilder}, the output would look like this:
*
*
* Person@182f0db[
* name=John Doe
* age=33
* smoker=false
* ]
*
*/
public static final ToStringStyle MULTI_LINE_STYLE = new MultiLineToStringStyle();
/**
* The no field names toString style. Using the Using the
* Person example from {@link ToStringBuilder}, the output
* would look like this:
*
*
* Person@182f0db[John Doe,33,false]
*
*/
public static final ToStringStyle NO_FIELD_NAMES_STYLE = new NoFieldNameToStringStyle();
/**
* The short prefix toString style. Using the Person example
* from {@link ToStringBuilder}, the output would look like this:
*
*
* Person[name=John Doe,age=33,smoker=false]
*
*
* @since 2.1
*/
public static final ToStringStyle SHORT_PREFIX_STYLE = new ShortPrefixToStringStyle();
/**
* The simple toString style. Using the Using the Person
* example from {@link ToStringBuilder}, the output would look like this:
*
*
* John Doe,33,false
*
*/
public static final ToStringStyle SIMPLE_STYLE = new SimpleToStringStyle();
/**
*
* A registry of objects used by reflectionToString methods
* to detect cyclical object references and avoid infinite loops.
*
*/
private static final ThreadLocal REGISTRY = new ThreadLocal();
/**
*
* Returns the registry of objects being traversed by the reflectionToString
* methods in the current thread.
*
*
* @return Set the registry of objects being traversed
*/
static Map getRegistry() {
return (Map) REGISTRY.get();
}
/**
*
* Returns true if the registry contains the given object.
* Used by the reflection methods to avoid infinite loops.
*
*
* @param value
* The object to lookup in the registry.
* @return boolean true if the registry contains the given
* object.
*/
static boolean isRegistered(Object value) {
Map m = getRegistry();
return m != null && m.containsKey(value);
}
/**
*
* Registers the given object. Used by the reflection methods to avoid
* infinite loops.
*
*
* @param value
* The object to register.
*/
static void register(Object value) {
if (value != null) {
Map m = getRegistry();
if (m == null) {
m = new WeakHashMap();
REGISTRY.set(m);
}
m.put(value, null);
}
}
/**
*
* Unregisters the given object.
*
*
*
* Used by the reflection methods to avoid infinite loops.
*
*
* @param value
* The object to unregister.
*/
static void unregister(Object value) {
if (value != null) {
Map m = getRegistry();
if (m != null) {
m.remove(value);
if (m.isEmpty()) {
REGISTRY.set(null);
}
}
}
}
/**
* Whether to use the field names, the default is true.
*/
private boolean useFieldNames = true;
/**
* Whether to use the class name, the default is true.
*/
private boolean useClassName = true;
/**
* Whether to use short class names, the default is false.
*/
private boolean useShortClassName = false;
/**
* Whether to use the identity hash code, the default is true.
*/
private boolean useIdentityHashCode = true;
/**
* The content start '['.
*/
private String contentStart = "[";
/**
* The content end ']'.
*/
private String contentEnd = "]";
/**
* The field name value separator '='.
*/
private String fieldNameValueSeparator = "=";
/**
* Whether the field separator should be added before any other fields.
*/
private boolean fieldSeparatorAtStart = false;
/**
* Whether the field separator should be added after any other fields.
*/
private boolean fieldSeparatorAtEnd = false;
/**
* The field separator ','.
*/
private String fieldSeparator = ",";
/**
* The array start '{'.
*/
private String arrayStart = "{";
/**
* The array separator ','.
*/
private String arraySeparator = ",";
/**
* The detail for array content.
*/
private boolean arrayContentDetail = true;
/**
* The array end '}'.
*/
private String arrayEnd = "}";
/**
* The value to use when fullDetail is null,
* the default value is true.
*/
private boolean defaultFullDetail = true;
/**
* The null text '<null>'.
*/
private String nullText = "";
/**
* The summary size text start '.
*/
private String sizeStartText = "'>' .
*/
private String sizeEndText = ">";
/**
* The summary object text start '<'.
*/
private String summaryObjectStartText = "<";
/**
* The summary object text start '>'.
*/
private String summaryObjectEndText = ">";
//----------------------------------------------------------------------------
/**
* Constructor.
*/
protected ToStringStyle() {
super();
}
//----------------------------------------------------------------------------
/**
* Append to the toString the superclass toString.
* NOTE: It assumes that the toString has been created from the same ToStringStyle.
*
* A null superToString is ignored.
*
* @param buffer the StringBuffer to populate
* @param superToString the super.toString()
* @since 2.0
*/
public void appendSuper(StringBuffer buffer, String superToString) {
appendToString(buffer, superToString);
}
/**
* Append to the toString another toString.
* NOTE: It assumes that the toString has been created from the same ToStringStyle.
*
* A null toString is ignored.
*
* @param buffer the StringBuffer to populate
* @param toString the additional toString
* @since 2.0
*/
public void appendToString(StringBuffer buffer, String toString) {
if (toString != null) {
int pos1 = toString.indexOf(contentStart) + contentStart.length();
int pos2 = toString.lastIndexOf(contentEnd);
if (pos1 != pos2 && pos1 >= 0 && pos2 >= 0) {
String data = toString.substring(pos1, pos2);
if (fieldSeparatorAtStart) {
removeLastFieldSeparator(buffer);
}
buffer.append(data);
appendFieldSeparator(buffer);
}
}
}
/**
* Append to the toString the start of data indicator.
*
* @param buffer the StringBuffer to populate
* @param object the Object to build a toString for
*/
public void appendStart(StringBuffer buffer, Object object) {
if (object != null) {
appendClassName(buffer, object);
appendIdentityHashCode(buffer, object);
appendContentStart(buffer);
if (fieldSeparatorAtStart) {
appendFieldSeparator(buffer);
}
}
}
/**
* Append to the toString the end of data indicator.
*
* @param buffer the StringBuffer to populate
* @param object the Object to build a
* toString for.
*/
public void appendEnd(StringBuffer buffer, Object object) {
if (this.fieldSeparatorAtEnd == false) {
removeLastFieldSeparator(buffer);
}
appendContentEnd(buffer);
unregister(object);
}
/**
* Remove the last field separator from the buffer.
*
* @param buffer the StringBuffer to populate
* @since 2.0
*/
protected void removeLastFieldSeparator(StringBuffer buffer) {
int len = buffer.length();
int sepLen = fieldSeparator.length();
if (len > 0 && sepLen > 0 && len >= sepLen) {
boolean match = true;
for (int i = 0; i < sepLen; i++) {
if (buffer.charAt(len - 1 - i) != fieldSeparator.charAt(sepLen - 1 - i)) {
match = false;
break;
}
}
if (match) {
buffer.setLength(len - sepLen);
}
}
}
//----------------------------------------------------------------------------
/**
* 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 interpreting its type.
*
* This method performs the main lookup by Class type to correctly
* route arrays, Collections, Maps and
* Objects to the appropriate method.
*
* Either detail or summary views can be specified.
*
* If a cycle is detected, an object will be appended with the
* Object.toString() format.
*
* @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 (isRegistered(value) && !(value instanceof Number || value instanceof Boolean || value instanceof Character)) {
appendCyclicObject(buffer, fieldName, value);
return;
}
register(value);
try {
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[]) {
if (detail) {
appendDetail(buffer, fieldName, (long[]) value);
} else {
appendSummary(buffer, fieldName, (long[]) value);
}
} else if (value instanceof int[]) {
if (detail) {
appendDetail(buffer, fieldName, (int[]) value);
} else {
appendSummary(buffer, fieldName, (int[]) value);
}
} else if (value instanceof short[]) {
if (detail) {
appendDetail(buffer, fieldName, (short[]) value);
} else {
appendSummary(buffer, fieldName, (short[]) value);
}
} else if (value instanceof byte[]) {
if (detail) {
appendDetail(buffer, fieldName, (byte[]) value);
} else {
appendSummary(buffer, fieldName, (byte[]) value);
}
} else if (value instanceof char[]) {
if (detail) {
appendDetail(buffer, fieldName, (char[]) value);
} else {
appendSummary(buffer, fieldName, (char[]) value);
}
} else if (value instanceof double[]) {
if (detail) {
appendDetail(buffer, fieldName, (double[]) value);
} else {
appendSummary(buffer, fieldName, (double[]) value);
}
} else if (value instanceof float[]) {
if (detail) {
appendDetail(buffer, fieldName, (float[]) value);
} else {
appendSummary(buffer, fieldName, (float[]) value);
}
} else if (value instanceof boolean[]) {
if (detail) {
appendDetail(buffer, fieldName, (boolean[]) value);
} else {
appendSummary(buffer, fieldName, (boolean[]) value);
}
} 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);
}
}
} finally {
unregister(value);
}
}
/**
* Append to the toString an Object
* value that has been detected to participate in a cycle. This
* implementation will print the standard string value of the 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,
* not null
*
* @since 2.2
*/
protected void appendCyclicObject(StringBuffer buffer, String fieldName, Object value) {
ObjectUtils.identityToString(buffer, 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 Map 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(summaryObjectStartText);
buffer.append(getShortClassName(value.getClass()));
buffer.append(summaryObjectEndText);
}
//----------------------------------------------------------------------------
/**
* 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 short
* 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, short value) {
appendFieldStart(buffer, fieldName);
appendDetail(buffer, fieldName, value);
appendFieldEnd(buffer, fieldName);
}
/**
* Append to the toString a short
* 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, short value) {
buffer.append(value);
}
//----------------------------------------------------------------------------
/**
* Append to the toString a byte
* 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, byte value) {
appendFieldStart(buffer, fieldName);
appendDetail(buffer, fieldName, value);
appendFieldEnd(buffer, fieldName);
}
/**
* Append to the toString a byte
* 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, byte 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 {
appendInternal(buffer, fieldName, item, arrayContentDetail);
}
}
buffer.append(arrayEnd);
}
/**
* Append to the toString the detail of an array type.
*
* @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
* @since 2.0
*/
protected void reflectionAppendArrayDetail(StringBuffer buffer, String fieldName, Object array) {
buffer.append(arrayStart);
int length = Array.getLength(array);
for (int i = 0; i < length; i++) {
Object item = Array.get(array, i);
if (i > 0) {
buffer.append(arraySeparator);
}
if (item == null) {
appendNullText(buffer, fieldName);
} else {
appendInternal(buffer, fieldName, item, arrayContentDetail);
}
}
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 to the toString an int
* 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, int[] 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
* int 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, int[] 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 an
* int 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, int[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
//----------------------------------------------------------------------------
/**
* Append to the toString a short
* 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, short[] 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
* short 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, short[] 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
* short 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, short[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
//----------------------------------------------------------------------------
/**
* Append to the toString a byte
* 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, byte[] 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
* byte 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, byte[] 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
* byte 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, byte[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
//----------------------------------------------------------------------------
/**
* Append to the toString a char
* 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, char[] 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
* char 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, char[] 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
* char 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, char[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
//----------------------------------------------------------------------------
/**
* Append to the toString a double
* 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, double[] 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
* double 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, double[] 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
* double 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, double[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
//----------------------------------------------------------------------------
/**
* Append to the toString a float
* 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, float[] 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
* float 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, float[] 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
* float 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, float[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
//----------------------------------------------------------------------------
/**
* Append to the toString a boolean
* 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, boolean[] 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
* boolean 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, boolean[] 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
* boolean 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, boolean[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
//----------------------------------------------------------------------------
/**
* Append to the toString the class name.
*
* @param buffer the StringBuffer to populate
* @param object the Object whose name to output
*/
protected void appendClassName(StringBuffer buffer, Object object) {
if (useClassName && object != null) {
register(object);
if (useShortClassName) {
buffer.append(getShortClassName(object.getClass()));
} else {
buffer.append(object.getClass().getName());
}
}
}
/**
* Append the {@link System#identityHashCode(java.lang.Object)}.
*
* @param buffer the StringBuffer to populate
* @param object the Object whose id to output
*/
protected void appendIdentityHashCode(StringBuffer buffer, Object object) {
if (this.isUseIdentityHashCode() && object != null) {
register(object);
buffer.append('@');
buffer.append(Integer.toHexString(System.identityHashCode(object)));
}
}
/**
* Append to the toString the content start.
*
* @param buffer the StringBuffer to populate
*/
protected void appendContentStart(StringBuffer buffer) {
buffer.append(contentStart);
}
/**
* Append to the toString the content end.
*
* @param buffer the StringBuffer to populate
*/
protected void appendContentEnd(StringBuffer buffer) {
buffer.append(contentEnd);
}
/**
* Append to the toString an indicator for null.
*
* The default indicator 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 to the toString the field separator.
*
* @param buffer the StringBuffer to populate
*/
protected void appendFieldSeparator(StringBuffer buffer) {
buffer.append(fieldSeparator);
}
/**
* Append to the toString the field start.
*
* @param buffer the StringBuffer to populate
* @param fieldName the field name
*/
protected void appendFieldStart(StringBuffer buffer, String fieldName) {
if (useFieldNames && fieldName != null) {
buffer.append(fieldName);
buffer.append(fieldNameValueSeparator);
}
}
/**
* Append to the toString the field end.
*
* @param buffer the StringBuffer to populate
* @param fieldName the field name, typically not used as already appended
*/
protected void appendFieldEnd(StringBuffer buffer, String fieldName) {
appendFieldSeparator(buffer);
}
/**
* Append to the toString a size summary.
*
* The size summary is used to summarize the contents of
* Collections, Maps and arrays.
*
* The output consists of a prefix, the passed in size
* and a suffix.
*
* The default format is '<size=n>'.
*
* @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.
*
* This method converts a detail request into a detail level.
* The calling code may request full detail (true),
* but a subclass might ignore that and always return
* false. The calling code may pass in
* null indicating that it doesn't care about
* the detail level. In this case the default detail level is
* used.
*
* @param fullDetailRequest the detail level requested
* @return whether full detail is to be shown
*/
protected boolean isFullDetail(Boolean fullDetailRequest) {
if (fullDetailRequest == null) {
return defaultFullDetail;
}
return fullDetailRequest;
}
/**
* Gets the short class name for a class.
*
* The short class name is the classname excluding
* the package name.
*
* @param cls the Class to get the short name of
* @return the short name
*/
protected String getShortClassName(Class cls) {
return ClassUtils.getShortClassName(cls);
}
// Setters and getters for the customizable parts of the style
// These methods are not expected to be overridden, except to make public
// (They are not public so that immutable subclasses can be written)
//---------------------------------------------------------------------
/**
* Gets whether to use the class name.
*
* @return the current useClassName flag
*/
protected boolean isUseClassName() {
return useClassName;
}
/**
* Sets whether to use the class name.
*
* @param useClassName the new useClassName flag
*/
protected void setUseClassName(boolean useClassName) {
this.useClassName = useClassName;
}
//---------------------------------------------------------------------
/**
* Gets whether to output short or long class names.
*
* @return the current useShortClassName flag
* @since 2.0
*/
protected boolean isUseShortClassName() {
return useShortClassName;
}
/**
* Gets whether to output short or long class names.
*
* @return the current shortClassName flag
* @deprecated Use {@link #isUseShortClassName()}
* Method will be removed in Commons Lang 3.0.
*/
protected boolean isShortClassName() {
return useShortClassName;
}
/**
* Sets whether to output short or long class names.
*
* @param useShortClassName the new useShortClassName flag
* @since 2.0
*/
protected void setUseShortClassName(boolean useShortClassName) {
this.useShortClassName = useShortClassName;
}
/**
* Sets whether to output short or long class names.
*
* @param shortClassName the new shortClassName flag
* @deprecated Use {@link #setUseShortClassName(boolean)}
* Method will be removed in Commons Lang 3.0.
*/
protected void setShortClassName(boolean shortClassName) {
this.useShortClassName = shortClassName;
}
//---------------------------------------------------------------------
/**
* Gets whether to use the identity hash code.
*
* @return the current useIdentityHashCode flag
*/
protected boolean isUseIdentityHashCode() {
return useIdentityHashCode;
}
/**
* Sets whether to use the identity hash code.
*
* @param useIdentityHashCode the new useIdentityHashCode flag
*/
protected void setUseIdentityHashCode(boolean useIdentityHashCode) {
this.useIdentityHashCode = useIdentityHashCode;
}
//---------------------------------------------------------------------
/**
* Gets whether to use the field names passed in.
*
* @return the current useFieldNames flag
*/
protected boolean isUseFieldNames() {
return useFieldNames;
}
/**
* Sets whether to use the field names passed in.
*
* @param useFieldNames the new useFieldNames flag
*/
protected void setUseFieldNames(boolean useFieldNames) {
this.useFieldNames = useFieldNames;
}
//---------------------------------------------------------------------
/**
* Gets whether to use full detail when the caller doesn't
* specify.
*
* @return the current defaultFullDetail flag
*/
protected boolean isDefaultFullDetail() {
return defaultFullDetail;
}
/**
* Sets whether to use full detail when the caller doesn't
* specify.
*
* @param defaultFullDetail the new defaultFullDetail flag
*/
protected void setDefaultFullDetail(boolean defaultFullDetail) {
this.defaultFullDetail = defaultFullDetail;
}
//---------------------------------------------------------------------
/**
* Gets whether to output array content detail.
*
* @return the current array content detail setting
*/
protected boolean isArrayContentDetail() {
return arrayContentDetail;
}
/**
* Sets whether to output array content detail.
*
* @param arrayContentDetail the new arrayContentDetail flag
*/
protected void setArrayContentDetail(boolean arrayContentDetail) {
this.arrayContentDetail = arrayContentDetail;
}
//---------------------------------------------------------------------
/**
* Gets the array start text.
*
* @return the current array start text
*/
protected String getArrayStart() {
return arrayStart;
}
/**
* Sets the array start text.
*
* null is accepted, but will be converted to
* an empty String.
*
* @param arrayStart the new array start text
*/
protected void setArrayStart(String arrayStart) {
if (arrayStart == null) {
arrayStart = "";
}
this.arrayStart = arrayStart;
}
//---------------------------------------------------------------------
/**
* Gets the array end text.
*
* @return the current array end text
*/
protected String getArrayEnd() {
return arrayEnd;
}
/**
* Sets the array end text.
*
* null is accepted, but will be converted to
* an empty String.
*
* @param arrayEnd the new array end text
*/
protected void setArrayEnd(String arrayEnd) {
if (arrayEnd == null) {
arrayEnd = "";
}
this.arrayEnd = arrayEnd;
}
//---------------------------------------------------------------------
/**
* Gets the array separator text.
*
* @return the current array separator text
*/
protected String getArraySeparator() {
return arraySeparator;
}
/**
* Sets the array separator text.
*
* null is accepted, but will be converted to
* an empty String.
*
* @param arraySeparator the new array separator text
*/
protected void setArraySeparator(String arraySeparator) {
if (arraySeparator == null) {
arraySeparator = "";
}
this.arraySeparator = arraySeparator;
}
//---------------------------------------------------------------------
/**
* Gets the content start text.
*
* @return the current content start text
*/
protected String getContentStart() {
return contentStart;
}
/**
* Sets the content start text.
*
* null is accepted, but will be converted to
* an empty String.
*
* @param contentStart the new content start text
*/
protected void setContentStart(String contentStart) {
if (contentStart == null) {
contentStart = "";
}
this.contentStart = contentStart;
}
//---------------------------------------------------------------------
/**
* Gets the content end text.
*
* @return the current content end text
*/
protected String getContentEnd() {
return contentEnd;
}
/**
* Sets the content end text.
*
* null is accepted, but will be converted to
* an empty String.
*
* @param contentEnd the new content end text
*/
protected void setContentEnd(String contentEnd) {
if (contentEnd == null) {
contentEnd = "";
}
this.contentEnd = contentEnd;
}
//---------------------------------------------------------------------
/**
* Gets the field name value separator text.
*
* @return the current field name value separator text
*/
protected String getFieldNameValueSeparator() {
return fieldNameValueSeparator;
}
/**
* Sets the field name value separator text.
*
* null is accepted, but will be converted to
* an empty String.
*
* @param fieldNameValueSeparator the new field name value separator text
*/
protected void setFieldNameValueSeparator(String fieldNameValueSeparator) {
if (fieldNameValueSeparator == null) {
fieldNameValueSeparator = "";
}
this.fieldNameValueSeparator = fieldNameValueSeparator;
}
//---------------------------------------------------------------------
/**
* Gets the field separator text.
*
* @return the current field separator text
*/
protected String getFieldSeparator() {
return fieldSeparator;
}
/**
* Sets the field separator text.
*
* null is accepted, but will be converted to
* an empty String.
*
* @param fieldSeparator the new field separator text
*/
protected void setFieldSeparator(String fieldSeparator) {
if (fieldSeparator == null) {
fieldSeparator = "";
}
this.fieldSeparator = fieldSeparator;
}
//---------------------------------------------------------------------
/**
* Gets whether the field separator should be added at the start
* of each buffer.
*
* @return the fieldSeparatorAtStart flag
* @since 2.0
*/
protected boolean isFieldSeparatorAtStart() {
return fieldSeparatorAtStart;
}
/**
* Sets whether the field separator should be added at the start
* of each buffer.
*
* @param fieldSeparatorAtStart the fieldSeparatorAtStart flag
* @since 2.0
*/
protected void setFieldSeparatorAtStart(boolean fieldSeparatorAtStart) {
this.fieldSeparatorAtStart = fieldSeparatorAtStart;
}
//---------------------------------------------------------------------
/**
* Gets whether the field separator should be added at the end
* of each buffer.
*
* @return fieldSeparatorAtEnd flag
* @since 2.0
*/
protected boolean isFieldSeparatorAtEnd() {
return fieldSeparatorAtEnd;
}
/**
* Sets whether the field separator should be added at the end
* of each buffer.
*
* @param fieldSeparatorAtEnd the fieldSeparatorAtEnd flag
* @since 2.0
*/
protected void setFieldSeparatorAtEnd(boolean fieldSeparatorAtEnd) {
this.fieldSeparatorAtEnd = fieldSeparatorAtEnd;
}
//---------------------------------------------------------------------
/**
* Gets the text to output when null found.
*
* @return the current text to output when null found
*/
protected String getNullText() {
return nullText;
}
/**
* Sets the text to output when null found.
*
* null is accepted, but will be converted to
* an empty String.
*
* @param nullText the new text to output when null found
*/
protected void setNullText(String nullText) {
if (nullText == null) {
nullText = "";
}
this.nullText = nullText;
}
//---------------------------------------------------------------------
/**
* Gets the start text to output when a Collection,
* Map or array size is output.
*
* This is output before the size value.
*
* @return the current start of size text
*/
protected String getSizeStartText() {
return sizeStartText;
}
/**
* Sets the start text to output when a Collection,
* Map or array size is output.
*
* This is output before the size value.
*
* null is accepted, but will be converted to
* an empty String.
*
* @param sizeStartText the new start of size text
*/
protected void setSizeStartText(String sizeStartText) {
if (sizeStartText == null) {
sizeStartText = "";
}
this.sizeStartText = sizeStartText;
}
//---------------------------------------------------------------------
/**
* Gets the end text to output when a Collection,
* Map or array size is output.
*
* This is output after the size value.
*
* @return the current end of size text
*/
protected String getSizeEndText() {
return sizeEndText;
}
/**
* Sets the end text to output when a Collection,
* Map or array size is output.
*
* This is output after the size value.
*
* null is accepted, but will be converted to
* an empty String.
*
* @param sizeEndText the new end of size text
*/
protected void setSizeEndText(String sizeEndText) {
if (sizeEndText == null) {
sizeEndText = "";
}
this.sizeEndText = sizeEndText;
}
//---------------------------------------------------------------------
/**
* Gets the start text to output when an Object is
* output in summary mode.
*
* This is output before the size value.
*
* @return the current start of summary text
*/
protected String getSummaryObjectStartText() {
return summaryObjectStartText;
}
/**
* Sets the start text to output when an Object is
* output in summary mode.
*
* This is output before the size value.
*
* null is accepted, but will be converted to
* an empty String.
*
* @param summaryObjectStartText the new start of summary text
*/
protected void setSummaryObjectStartText(String summaryObjectStartText) {
if (summaryObjectStartText == null) {
summaryObjectStartText = "";
}
this.summaryObjectStartText = summaryObjectStartText;
}
//---------------------------------------------------------------------
/**
* Gets the end text to output when an Object is
* output in summary mode.
*
* This is output after the size value.
*
* @return the current end of summary text
*/
protected String getSummaryObjectEndText() {
return summaryObjectEndText;
}
/**
* Sets the end text to output when an Object is
* output in summary mode.
*
* This is output after the size value.
*
* null is accepted, but will be converted to
* an empty String.
*
* @param summaryObjectEndText the new end of summary text
*/
protected void setSummaryObjectEndText(String summaryObjectEndText) {
if (summaryObjectEndText == null) {
summaryObjectEndText = "";
}
this.summaryObjectEndText = summaryObjectEndText;
}
//----------------------------------------------------------------------------
/**
* Default ToStringStyle.
*
* This is an inner class rather than using
* StandardToStringStyle to ensure its immutability.
*/
private static final class DefaultToStringStyle extends ToStringStyle {
/**
* Required for serialization support.
*
* @see java.io.Serializable
*/
private static final long serialVersionUID = 1L;
/**
* Constructor.
*
* Use the static constant rather than instantiating.
*/
DefaultToStringStyle() {
super();
}
/**
* Ensure Singleton after serialization.
*
* @return the singleton
*/
private Object readResolve() {
return ToStringStyle.DEFAULT_STYLE;
}
}
//----------------------------------------------------------------------------
/**
* ToStringStyle that does not print out
* the field names.
*
* This is an inner class rather than using
* StandardToStringStyle to ensure its immutability.
*/
private static final class NoFieldNameToStringStyle extends ToStringStyle {
private static final long serialVersionUID = 1L;
/**
*
Constructor.
*
* Use the static constant rather than instantiating.
*/
NoFieldNameToStringStyle() {
super();
this.setUseFieldNames(false);
}
/**
* Ensure Singleton after serialization.
*
* @return the singleton
*/
private Object readResolve() {
return ToStringStyle.NO_FIELD_NAMES_STYLE;
}
}
//----------------------------------------------------------------------------
/**
* ToStringStyle that prints out the short
* class name and no identity hashcode.
*
* This is an inner class rather than using
* StandardToStringStyle to ensure its immutability.
*/
private static final class ShortPrefixToStringStyle extends ToStringStyle {
private static final long serialVersionUID = 1L;
/**
* Constructor.
*
* Use the static constant rather than instantiating.
*/
ShortPrefixToStringStyle() {
super();
this.setUseShortClassName(true);
this.setUseIdentityHashCode(false);
}
/**
* Ensure Singleton after serialization.
* @return the singleton
*/
private Object readResolve() {
return ToStringStyle.SHORT_PREFIX_STYLE;
}
}
/**
* ToStringStyle that does not print out the
* classname, identity hashcode, content start or field name.
*
* This is an inner class rather than using
* StandardToStringStyle to ensure its immutability.
*/
private static final class SimpleToStringStyle extends ToStringStyle {
private static final long serialVersionUID = 1L;
/**
* Constructor.
*
* Use the static constant rather than instantiating.
*/
SimpleToStringStyle() {
super();
this.setUseClassName(false);
this.setUseIdentityHashCode(false);
this.setUseFieldNames(false);
this.setContentStart("");
this.setContentEnd("");
}
/**
* Ensure Singleton after serialization.
* @return the singleton
*/
private Object readResolve() {
return ToStringStyle.SIMPLE_STYLE;
}
}
//----------------------------------------------------------------------------
/**
* ToStringStyle that outputs on multiple lines.
*
* This is an inner class rather than using
* StandardToStringStyle to ensure its immutability.
*/
private static final class MultiLineToStringStyle extends ToStringStyle {
private static final long serialVersionUID = 1L;
/**
* Constructor.
*
* Use the static constant rather than instantiating.
*/
MultiLineToStringStyle() {
super();
String separator = getSystemProperty("line.separator");
this.setContentStart("[");
this.setFieldSeparator(separator + " ");
this.setFieldSeparatorAtStart(true);
this.setContentEnd(separator + "]");
}
private String getSystemProperty(final String property) {
try {
return System.getProperty(property);
} catch (SecurityException ex) {
// we are not allowed to look at this property
System.err.println("Caught a SecurityException reading the system property '" + property + "'; the SystemUtils property value will default to null.");
return null;
}
}
/**
* Ensure Singleton after serialization.
*
* @return the singleton
*/
private Object readResolve() {
return ToStringStyle.MULTI_LINE_STYLE;
}
}
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