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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.lang3.builder;
import java.io.Serializable;
import java.lang.reflect.Array;
import java.util.Collection;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Objects;
import java.util.WeakHashMap;
import org.apache.commons.lang3.ClassUtils;
import org.apache.commons.lang3.ObjectUtils;
import org.apache.commons.lang3.StringEscapeUtils;
import org.apache.commons.lang3.StringUtils;
/**
* Controls {@link String} formatting for {@link ToStringBuilder}.
* The main public interface is always via {@link 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 {@code boolean}
* to {@code long} to {@link Object} to {@code 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);
* }
* }
*
*
* @since 1.0
*/
@SuppressWarnings("deprecation") // StringEscapeUtils
public abstract class ToStringStyle implements Serializable {
/**
* Serialization version ID.
*/
private static final long serialVersionUID = -2587890625525655916L;
/**
* The default toString style. Using the {@code 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 {@code 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
* {@code 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 {@code 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 {@code Person}
* example from {@link ToStringBuilder}, the output would look like this:
*
*
* John Doe,33,false
*
*/
public static final ToStringStyle SIMPLE_STYLE = new SimpleToStringStyle();
/**
* The no class name toString style. Using the {@code Person}
* example from {@link ToStringBuilder}, the output would look like this:
*
*
* [name=John Doe,age=33,smoker=false]
*
*
* @since 3.4
*/
public static final ToStringStyle NO_CLASS_NAME_STYLE = new NoClassNameToStringStyle();
/**
* The JSON toString style. Using the {@code Person} example from
* {@link ToStringBuilder}, the output would look like this:
*
*
* {"name": "John Doe", "age": 33, "smoker": true}
*
*
* Note: Since field names are mandatory in JSON, this
* ToStringStyle will throw an {@link UnsupportedOperationException} if no
* field name is passed in while appending. Furthermore This ToStringStyle
* will only generate valid JSON if referenced objects also produce JSON
* when calling {@code toString()} on them.
*
* @since 3.4
* @see json.org
*/
public static final ToStringStyle JSON_STYLE = new JsonToStringStyle();
/**
* A registry of objects used by {@code reflectionToString} methods
* to detect cyclical object references and avoid infinite loops.
*
*/
private static final ThreadLocal> REGISTRY = new ThreadLocal<>();
/*
* Note that objects of this class are generally shared between threads, so
* an instance variable would not be suitable here.
*
* In normal use the registry should always be left empty, because the caller
* should call toString() which will clean up.
*
* See LANG-792
*/
/**
* Returns the registry of objects being traversed by the {@code reflectionToString}
* methods in the current thread.
*
* @return Set the registry of objects being traversed
*/
public static Map getRegistry() {
return REGISTRY.get();
}
/**
* Returns {@code 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 {@code true} if the registry contains the given
* object.
*/
static boolean isRegistered(final Object value) {
final 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(final Object value) {
if (value != null) {
final Map m = getRegistry();
if (m == null) {
REGISTRY.set(new WeakHashMap<>());
}
getRegistry().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(final Object value) {
if (value != null) {
final Map m = getRegistry();
if (m != null) {
m.remove(value);
if (m.isEmpty()) {
REGISTRY.remove();
}
}
}
}
/**
* Whether to use the field names, the default is {@code true}.
*/
private boolean useFieldNames = true;
/**
* Whether to use the class name, the default is {@code true}.
*/
private boolean useClassName = true;
/**
* Whether to use short class names, the default is {@code false}.
*/
private boolean useShortClassName;
/**
* Whether to use the identity hash code, the default is {@code true}.
*/
private boolean useIdentityHashCode = true;
/**
* The content start {@code '['}.
*/
private String contentStart = "[";
/**
* The content end {@code ']'}.
*/
private String contentEnd = "]";
/**
* The field name value separator {@code '='}.
*/
private String fieldNameValueSeparator = "=";
/**
* Whether the field separator should be added before any other fields.
*/
private boolean fieldSeparatorAtStart;
/**
* Whether the field separator should be added after any other fields.
*/
private boolean fieldSeparatorAtEnd;
/**
* The field separator {@code ','}.
*/
private String fieldSeparator = ",";
/**
* The array start '{'.
*/
private String arrayStart = "{";
/**
* The array separator {@code ','}.
*/
private String arraySeparator = ",";
/**
* The detail for array content.
*/
private boolean arrayContentDetail = true;
/**
* The array end {@code '}'}.
*/
private String arrayEnd = "}";
/**
* The value to use when fullDetail is {@code null},
* the default value is {@code true}.
*/
private boolean defaultFullDetail = true;
/**
* The {@code null} text {@code '<null>'}.
*/
private String nullText = "";
/**
* The summary size text start {@code '<size'}.
*/
private String sizeStartText = "NOTE: It assumes that the toString has been created from the same ToStringStyle.
*
* A {@code null} {@code superToString} is ignored.
*
* @param buffer the {@link StringBuffer} to populate
* @param superToString the {@code super.toString()}
* @since 2.0
*/
public void appendSuper(final StringBuffer buffer, final String superToString) {
appendToString(buffer, superToString);
}
/**
* Appends to the {@code toString} another toString.
* NOTE: It assumes that the toString has been created from the same ToStringStyle.
*
* A {@code null} {@code toString} is ignored.
*
* @param buffer the {@link StringBuffer} to populate
* @param toString the additional {@code toString}
* @since 2.0
*/
public void appendToString(final StringBuffer buffer, final String toString) {
if (toString != null) {
final int pos1 = toString.indexOf(contentStart) + contentStart.length();
final int pos2 = toString.lastIndexOf(contentEnd);
if (pos1 != pos2 && pos1 >= 0 && pos2 >= 0) {
if (fieldSeparatorAtStart) {
removeLastFieldSeparator(buffer);
}
buffer.append(toString, pos1, pos2);
appendFieldSeparator(buffer);
}
}
}
/**
* Appends to the {@code toString} the start of data indicator.
*
* @param buffer the {@link StringBuffer} to populate
* @param object the {@link Object} to build a {@code toString} for
*/
public void appendStart(final StringBuffer buffer, final Object object) {
if (object != null) {
appendClassName(buffer, object);
appendIdentityHashCode(buffer, object);
appendContentStart(buffer);
if (fieldSeparatorAtStart) {
appendFieldSeparator(buffer);
}
}
}
/**
* Appends to the {@code toString} the end of data indicator.
*
* @param buffer the {@link StringBuffer} to populate
* @param object the {@link Object} to build a
* {@code toString} for.
*/
public void appendEnd(final StringBuffer buffer, final Object object) {
if (!this.fieldSeparatorAtEnd) {
removeLastFieldSeparator(buffer);
}
appendContentEnd(buffer);
unregister(object);
}
/**
* Remove the last field separator from the buffer.
*
* @param buffer the {@link StringBuffer} to populate
* @since 2.0
*/
protected void removeLastFieldSeparator(final StringBuffer buffer) {
if (StringUtils.endsWith(buffer, fieldSeparator)) {
buffer.setLength(buffer.length() - fieldSeparator.length());
}
}
/**
* Appends to the {@code toString} an {@link Object}
* value, printing the full {@code toString} of the
* {@link Object} passed in.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param value the value to add to the {@code toString}
* @param fullDetail {@code true} for detail, {@code false}
* for summary info, {@code null} for style decides
*/
public void append(final StringBuffer buffer, final String fieldName, final Object value, final Boolean fullDetail) {
appendFieldStart(buffer, fieldName);
if (value == null) {
appendNullText(buffer, fieldName);
} else {
appendInternal(buffer, fieldName, value, isFullDetail(fullDetail));
}
appendFieldEnd(buffer, fieldName);
}
/**
* Appends to the {@code toString} an {@link Object},
* correctly interpreting its type.
*
* This method performs the main lookup by Class type to correctly
* route arrays, {@link Collection}s, {@link Map}s and
* {@link 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
* {@code Object.toString()} format.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param value the value to add to the {@code toString},
* not {@code null}
* @param detail output detail or not
*/
protected void appendInternal(final StringBuffer buffer, final String fieldName, final Object value, final 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 (ObjectUtils.isArray(value)) {
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);
}
}
/**
* Appends to the {@code toString} an {@link 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 {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param value the value to add to the {@code toString},
* not {@code null}
*
* @since 2.2
*/
protected void appendCyclicObject(final StringBuffer buffer, final String fieldName, final Object value) {
ObjectUtils.identityToString(buffer, value);
}
/**
* Appends to the {@code toString} an {@link Object}
* value, printing the full detail of the {@link Object}.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param value the value to add to the {@code toString},
* not {@code null}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final Object value) {
buffer.append(value);
}
/**
* Appends to the {@code toString} a {@link Collection}.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param coll the {@link Collection} to add to the
* {@code toString}, not {@code null}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final Collection coll) {
buffer.append(coll);
}
/**
* Appends to the {@code toString} a {@link Map}.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param map the {@link Map} to add to the {@code toString},
* not {@code null}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final Map map) {
buffer.append(map);
}
/**
* Appends to the {@code toString} an {@link Object}
* value, printing a summary of the {@link Object}.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param value the value to add to the {@code toString},
* not {@code null}
*/
protected void appendSummary(final StringBuffer buffer, final String fieldName, final Object value) {
buffer.append(summaryObjectStartText);
buffer.append(getShortClassName(value.getClass()));
buffer.append(summaryObjectEndText);
}
/**
* Appends to the {@code toString} a {@code long}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param value the value to add to the {@code toString}
*/
public void append(final StringBuffer buffer, final String fieldName, final long value) {
appendFieldStart(buffer, fieldName);
appendDetail(buffer, fieldName, value);
appendFieldEnd(buffer, fieldName);
}
/**
* Appends to the {@code toString} a {@code long}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param value the value to add to the {@code toString}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final long value) {
buffer.append(value);
}
/**
* Appends to the {@code toString} an {@code int}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param value the value to add to the {@code toString}
*/
public void append(final StringBuffer buffer, final String fieldName, final int value) {
appendFieldStart(buffer, fieldName);
appendDetail(buffer, fieldName, value);
appendFieldEnd(buffer, fieldName);
}
/**
* Appends to the {@code toString} an {@code int}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param value the value to add to the {@code toString}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final int value) {
buffer.append(value);
}
/**
* Appends to the {@code toString} a {@code short}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param value the value to add to the {@code toString}
*/
public void append(final StringBuffer buffer, final String fieldName, final short value) {
appendFieldStart(buffer, fieldName);
appendDetail(buffer, fieldName, value);
appendFieldEnd(buffer, fieldName);
}
/**
* Appends to the {@code toString} a {@code short}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param value the value to add to the {@code toString}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final short value) {
buffer.append(value);
}
/**
* Appends to the {@code toString} a {@code byte}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param value the value to add to the {@code toString}
*/
public void append(final StringBuffer buffer, final String fieldName, final byte value) {
appendFieldStart(buffer, fieldName);
appendDetail(buffer, fieldName, value);
appendFieldEnd(buffer, fieldName);
}
/**
* Appends to the {@code toString} a {@code byte}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param value the value to add to the {@code toString}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final byte value) {
buffer.append(value);
}
/**
* Appends to the {@code toString} a {@code char}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param value the value to add to the {@code toString}
*/
public void append(final StringBuffer buffer, final String fieldName, final char value) {
appendFieldStart(buffer, fieldName);
appendDetail(buffer, fieldName, value);
appendFieldEnd(buffer, fieldName);
}
/**
* Appends to the {@code toString} a {@code char}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param value the value to add to the {@code toString}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final char value) {
buffer.append(value);
}
/**
* Appends to the {@code toString} a {@code double}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param value the value to add to the {@code toString}
*/
public void append(final StringBuffer buffer, final String fieldName, final double value) {
appendFieldStart(buffer, fieldName);
appendDetail(buffer, fieldName, value);
appendFieldEnd(buffer, fieldName);
}
/**
* Appends to the {@code toString} a {@code double}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param value the value to add to the {@code toString}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final double value) {
buffer.append(value);
}
/**
* Appends to the {@code toString} a {@code float}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param value the value to add to the {@code toString}
*/
public void append(final StringBuffer buffer, final String fieldName, final float value) {
appendFieldStart(buffer, fieldName);
appendDetail(buffer, fieldName, value);
appendFieldEnd(buffer, fieldName);
}
/**
* Appends to the {@code toString} a {@code float}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param value the value to add to the {@code toString}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final float value) {
buffer.append(value);
}
/**
* Appends to the {@code toString} a {@code boolean}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param value the value to add to the {@code toString}
*/
public void append(final StringBuffer buffer, final String fieldName, final boolean value) {
appendFieldStart(buffer, fieldName);
appendDetail(buffer, fieldName, value);
appendFieldEnd(buffer, fieldName);
}
/**
* Appends to the {@code toString} a {@code boolean}
* value.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param value the value to add to the {@code toString}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final boolean value) {
buffer.append(value);
}
/**
* Appends to the {@code toString} an {@link Object}
* array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param array the array to add to the toString
* @param fullDetail {@code true} for detail, {@code false}
* for summary info, {@code null} for style decides
*/
public void append(final StringBuffer buffer, final String fieldName, final Object[] array, final 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);
}
/**
* Appends to the {@code toString} the detail of an
* {@link Object} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final Object[] array) {
buffer.append(arrayStart);
for (int i = 0; i < array.length; i++) {
appendDetail(buffer, fieldName, i, array[i]);
}
buffer.append(arrayEnd);
}
/**
* Appends to the {@code toString} the detail of an
* {@link Object} array item.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param i the array item index to add
* @param item the array item to add
* @since 3.11
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final int i, final Object item) {
if (i > 0) {
buffer.append(arraySeparator);
}
if (item == null) {
appendNullText(buffer, fieldName);
} else {
appendInternal(buffer, fieldName, item, arrayContentDetail);
}
}
/**
* Appends to the {@code toString} the detail of an array type.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
* @since 2.0
*/
protected void reflectionAppendArrayDetail(final StringBuffer buffer, final String fieldName, final Object array) {
buffer.append(arrayStart);
final int length = Array.getLength(array);
for (int i = 0; i < length; i++) {
appendDetail(buffer, fieldName, i, Array.get(array, i));
}
buffer.append(arrayEnd);
}
/**
* Appends to the {@code toString} a summary of an
* {@link Object} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendSummary(final StringBuffer buffer, final String fieldName, final Object[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
/**
* Appends to the {@code toString} a {@code long}
* array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param array the array to add to the {@code toString}
* @param fullDetail {@code true} for detail, {@code false}
* for summary info, {@code null} for style decides
*/
public void append(final StringBuffer buffer, final String fieldName, final long[] array, final 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);
}
/**
* Appends to the {@code toString} the detail of a
* {@code long} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final 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);
}
/**
* Appends to the {@code toString} a summary of a
* {@code long} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendSummary(final StringBuffer buffer, final String fieldName, final long[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
/**
* Appends to the {@code toString} an {@code int}
* array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param array the array to add to the {@code toString}
* @param fullDetail {@code true} for detail, {@code false}
* for summary info, {@code null} for style decides
*/
public void append(final StringBuffer buffer, final String fieldName, final int[] array, final 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);
}
/**
* Appends to the {@code toString} the detail of an
* {@code int} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final 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);
}
/**
* Appends to the {@code toString} a summary of an
* {@code int} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendSummary(final StringBuffer buffer, final String fieldName, final int[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
/**
* Appends to the {@code toString} a {@code short}
* array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param array the array to add to the {@code toString}
* @param fullDetail {@code true} for detail, {@code false}
* for summary info, {@code null} for style decides
*/
public void append(final StringBuffer buffer, final String fieldName, final short[] array, final 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);
}
/**
* Appends to the {@code toString} the detail of a
* {@code short} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final 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);
}
/**
* Appends to the {@code toString} a summary of a
* {@code short} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendSummary(final StringBuffer buffer, final String fieldName, final short[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
/**
* Appends to the {@code toString} a {@code byte}
* array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param array the array to add to the {@code toString}
* @param fullDetail {@code true} for detail, {@code false}
* for summary info, {@code null} for style decides
*/
public void append(final StringBuffer buffer, final String fieldName, final byte[] array, final 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);
}
/**
* Appends to the {@code toString} the detail of a
* {@code byte} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final 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);
}
/**
* Appends to the {@code toString} a summary of a
* {@code byte} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendSummary(final StringBuffer buffer, final String fieldName, final byte[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
/**
* Appends to the {@code toString} a {@code char}
* array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param array the array to add to the {@code toString}
* @param fullDetail {@code true} for detail, {@code false}
* for summary info, {@code null} for style decides
*/
public void append(final StringBuffer buffer, final String fieldName, final char[] array, final 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);
}
/**
* Appends to the {@code toString} the detail of a
* {@code char} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final 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);
}
/**
* Appends to the {@code toString} a summary of a
* {@code char} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendSummary(final StringBuffer buffer, final String fieldName, final char[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
/**
* Appends to the {@code toString} a {@code double}
* array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param array the array to add to the toString
* @param fullDetail {@code true} for detail, {@code false}
* for summary info, {@code null} for style decides
*/
public void append(final StringBuffer buffer, final String fieldName, final double[] array, final 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);
}
/**
* Appends to the {@code toString} the detail of a
* {@code double} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final 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);
}
/**
* Appends to the {@code toString} a summary of a
* {@code double} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendSummary(final StringBuffer buffer, final String fieldName, final double[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
/**
* Appends to the {@code toString} a {@code float}
* array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param array the array to add to the toString
* @param fullDetail {@code true} for detail, {@code false}
* for summary info, {@code null} for style decides
*/
public void append(final StringBuffer buffer, final String fieldName, final float[] array, final 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);
}
/**
* Appends to the {@code toString} the detail of a
* {@code float} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final 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);
}
/**
* Appends to the {@code toString} a summary of a
* {@code float} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendSummary(final StringBuffer buffer, final String fieldName, final float[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
/**
* Appends to the {@code toString} a {@code boolean}
* array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
* @param array the array to add to the toString
* @param fullDetail {@code true} for detail, {@code false}
* for summary info, {@code null} for style decides
*/
public void append(final StringBuffer buffer, final String fieldName, final boolean[] array, final 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);
}
/**
* Appends to the {@code toString} the detail of a
* {@code boolean} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendDetail(final StringBuffer buffer, final String fieldName, final 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);
}
/**
* Appends to the {@code toString} a summary of a
* {@code boolean} array.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param array the array to add to the {@code toString},
* not {@code null}
*/
protected void appendSummary(final StringBuffer buffer, final String fieldName, final boolean[] array) {
appendSummarySize(buffer, fieldName, array.length);
}
/**
* Appends to the {@code toString} the class name.
*
* @param buffer the {@link StringBuffer} to populate
* @param object the {@link Object} whose name to output
*/
protected void appendClassName(final StringBuffer buffer, final Object object) {
if (useClassName && object != null) {
register(object);
if (useShortClassName) {
buffer.append(getShortClassName(object.getClass()));
} else {
buffer.append(object.getClass().getName());
}
}
}
/**
* Appends the {@link System#identityHashCode(java.lang.Object)}.
*
* @param buffer the {@link StringBuffer} to populate
* @param object the {@link Object} whose id to output
*/
protected void appendIdentityHashCode(final StringBuffer buffer, final Object object) {
if (this.isUseIdentityHashCode() && object != null) {
register(object);
buffer.append('@');
buffer.append(ObjectUtils.identityHashCodeHex(object));
}
}
/**
* Appends to the {@code toString} the content start.
*
* @param buffer the {@link StringBuffer} to populate
*/
protected void appendContentStart(final StringBuffer buffer) {
buffer.append(contentStart);
}
/**
* Appends to the {@code toString} the content end.
*
* @param buffer the {@link StringBuffer} to populate
*/
protected void appendContentEnd(final StringBuffer buffer) {
buffer.append(contentEnd);
}
/**
* Appends to the {@code toString} an indicator for {@code null}.
*
*
The default indicator is {@code '<null>'}.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
*/
protected void appendNullText(final StringBuffer buffer, final String fieldName) {
buffer.append(nullText);
}
/**
* Appends to the {@code toString} the field separator.
*
* @param buffer the {@link StringBuffer} to populate
*/
protected void appendFieldSeparator(final StringBuffer buffer) {
buffer.append(fieldSeparator);
}
/**
* Appends to the {@code toString} the field start.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name
*/
protected void appendFieldStart(final StringBuffer buffer, final String fieldName) {
if (useFieldNames && fieldName != null) {
buffer.append(fieldName);
buffer.append(fieldNameValueSeparator);
}
}
/**
* Appends to the {@code toString} the field end.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
*/
protected void appendFieldEnd(final StringBuffer buffer, final String fieldName) {
appendFieldSeparator(buffer);
}
/**
* Appends to the {@code toString} a size summary.
*
* The size summary is used to summarize the contents of
* {@link Collection}s, {@link Map}s and arrays.
*
* The output consists of a prefix, the passed in size
* and a suffix.
*
* The default format is {@code '<size=n>'}.
*
* @param buffer the {@link StringBuffer} to populate
* @param fieldName the field name, typically not used as already appended
* @param size the size to append
*/
protected void appendSummarySize(final StringBuffer buffer, final String fieldName, final 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 ({@code true}),
* but a subclass might ignore that and always return
* {@code false}. The calling code may pass in
* {@code 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(final Boolean fullDetailRequest) {
if (fullDetailRequest == null) {
return defaultFullDetail;
}
return fullDetailRequest.booleanValue();
}
/**
* Gets the short class name for a class.
*
* The short class name is the classname excluding
* the package name.
*
* @param cls the {@link Class} to get the short name of
* @return the short name
*/
protected String getShortClassName(final 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(final 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;
}
/**
* Sets whether to output short or long class names.
*
* @param useShortClassName the new useShortClassName flag
* @since 2.0
*/
protected void setUseShortClassName(final boolean useShortClassName) {
this.useShortClassName = useShortClassName;
}
/**
* 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(final 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(final 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(final 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(final 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.
*
* {@code 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 = StringUtils.EMPTY;
}
this.arrayStart = arrayStart;
}
/**
* Gets the array end text.
*
* @return the current array end text
*/
protected String getArrayEnd() {
return arrayEnd;
}
/**
* Sets the array end text.
*
* {@code 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 = StringUtils.EMPTY;
}
this.arrayEnd = arrayEnd;
}
/**
* Gets the array separator text.
*
* @return the current array separator text
*/
protected String getArraySeparator() {
return arraySeparator;
}
/**
* Sets the array separator text.
*
* {@code 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 = StringUtils.EMPTY;
}
this.arraySeparator = arraySeparator;
}
/**
* Gets the content start text.
*
* @return the current content start text
*/
protected String getContentStart() {
return contentStart;
}
/**
* Sets the content start text.
*
* {@code 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 = StringUtils.EMPTY;
}
this.contentStart = contentStart;
}
/**
* Gets the content end text.
*
* @return the current content end text
*/
protected String getContentEnd() {
return contentEnd;
}
/**
* Sets the content end text.
*
* {@code 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 = StringUtils.EMPTY;
}
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.
*
* {@code 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 = StringUtils.EMPTY;
}
this.fieldNameValueSeparator = fieldNameValueSeparator;
}
/**
* Gets the field separator text.
*
* @return the current field separator text
*/
protected String getFieldSeparator() {
return fieldSeparator;
}
/**
* Sets the field separator text.
*
* {@code 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 = StringUtils.EMPTY;
}
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(final 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(final boolean fieldSeparatorAtEnd) {
this.fieldSeparatorAtEnd = fieldSeparatorAtEnd;
}
/**
* Gets the text to output when {@code null} found.
*
* @return the current text to output when null found
*/
protected String getNullText() {
return nullText;
}
/**
* Sets the text to output when {@code null} found.
*
* {@code 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 = StringUtils.EMPTY;
}
this.nullText = nullText;
}
/**
* Gets the start text to output when a {@link Collection},
* {@link 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 {@link Collection},
* {@link Map} or array size is output.
*
* This is output before the size value.
*
* {@code 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 = StringUtils.EMPTY;
}
this.sizeStartText = sizeStartText;
}
/**
* Gets the end text to output when a {@link Collection},
* {@link 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 {@link Collection},
* {@link Map} or array size is output.
*
* This is output after the size value.
*
* {@code 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 = StringUtils.EMPTY;
}
this.sizeEndText = sizeEndText;
}
/**
* Gets the start text to output when an {@link 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 {@link Object} is
* output in summary mode.
*
* This is output before the size value.
*
* {@code 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 = StringUtils.EMPTY;
}
this.summaryObjectStartText = summaryObjectStartText;
}
/**
* Gets the end text to output when an {@link 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 {@link Object} is
* output in summary mode.
*
* This is output after the size value.
*
* {@code 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 = StringUtils.EMPTY;
}
this.summaryObjectEndText = summaryObjectEndText;
}
/**
* Default {@link ToStringStyle}.
*
* This is an inner class rather than using
* {@link 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() {
}
/**
* Ensure Singleton after serialization.
*
* @return the singleton
*/
private Object readResolve() {
return DEFAULT_STYLE;
}
}
/**
* {@link ToStringStyle} that does not print out
* the field names.
*
* This is an inner class rather than using
* {@link 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() {
this.setUseFieldNames(false);
}
/**
* Ensure Singleton after serialization.
*
* @return the singleton
*/
private Object readResolve() {
return NO_FIELD_NAMES_STYLE;
}
}
/**
* {@link ToStringStyle} that prints out the short
* class name and no identity hash code.
*
* This is an inner class rather than using
* {@link 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() {
this.setUseShortClassName(true);
this.setUseIdentityHashCode(false);
}
/**
* Ensure Singleton after serialization.
* @return the singleton
*/
private Object readResolve() {
return SHORT_PREFIX_STYLE;
}
}
/**
* {@link ToStringStyle} that does not print out the
* classname, identity hash code, content start or field name.
*
* This is an inner class rather than using
* {@link 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() {
this.setUseClassName(false);
this.setUseIdentityHashCode(false);
this.setUseFieldNames(false);
this.setContentStart(StringUtils.EMPTY);
this.setContentEnd(StringUtils.EMPTY);
}
/**
* Ensure Singleton after serialization.
* @return the singleton
*/
private Object readResolve() {
return SIMPLE_STYLE;
}
}
/**
* {@link ToStringStyle} that outputs on multiple lines.
*
* This is an inner class rather than using
* {@link 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() {
this.setContentStart("[");
this.setFieldSeparator(System.lineSeparator() + " ");
this.setFieldSeparatorAtStart(true);
this.setContentEnd(System.lineSeparator() + "]");
}
/**
* Ensure Singleton after serialization.
*
* @return the singleton
*/
private Object readResolve() {
return MULTI_LINE_STYLE;
}
}
/**
* {@link ToStringStyle} that does not print out the classname
* and identity hash code but prints content start and field names.
*
* This is an inner class rather than using
* {@link StandardToStringStyle} to ensure its immutability.
*/
private static final class NoClassNameToStringStyle extends ToStringStyle {
private static final long serialVersionUID = 1L;
/**
* Constructor.
*
* Use the static constant rather than instantiating.
*/
NoClassNameToStringStyle() {
this.setUseClassName(false);
this.setUseIdentityHashCode(false);
}
/**
* Ensure Singleton after serialization.
*
* @return the singleton
*/
private Object readResolve() {
return NO_CLASS_NAME_STYLE;
}
}
/**
* {@link ToStringStyle} that outputs with JSON format.
*
*
* This is an inner class rather than using
* {@link StandardToStringStyle} to ensure its immutability.
*
*
* @since 3.4
* @see json.org
*/
private static final class JsonToStringStyle extends ToStringStyle {
private static final long serialVersionUID = 1L;
private static final String FIELD_NAME_QUOTE = "\"";
/**
* Constructor.
*
*
* Use the static constant rather than instantiating.
*
*/
JsonToStringStyle() {
this.setUseClassName(false);
this.setUseIdentityHashCode(false);
this.setContentStart("{");
this.setContentEnd("}");
this.setArrayStart("[");
this.setArrayEnd("]");
this.setFieldSeparator(",");
this.setFieldNameValueSeparator(":");
this.setNullText("null");
this.setSummaryObjectStartText("\"<");
this.setSummaryObjectEndText(">\"");
this.setSizeStartText("\"\"");
}
@Override
public void append(final StringBuffer buffer, final String fieldName,
final Object[] array, final Boolean fullDetail) {
if (fieldName == null) {
throw new UnsupportedOperationException(
"Field names are mandatory when using JsonToStringStyle");
}
if (!isFullDetail(fullDetail)) {
throw new UnsupportedOperationException(
"FullDetail must be true when using JsonToStringStyle");
}
super.append(buffer, fieldName, array, fullDetail);
}
@Override
public void append(final StringBuffer buffer, final String fieldName, final long[] array,
final Boolean fullDetail) {
if (fieldName == null) {
throw new UnsupportedOperationException(
"Field names are mandatory when using JsonToStringStyle");
}
if (!isFullDetail(fullDetail)) {
throw new UnsupportedOperationException(
"FullDetail must be true when using JsonToStringStyle");
}
super.append(buffer, fieldName, array, fullDetail);
}
@Override
public void append(final StringBuffer buffer, final String fieldName, final int[] array,
final Boolean fullDetail) {
if (fieldName == null) {
throw new UnsupportedOperationException(
"Field names are mandatory when using JsonToStringStyle");
}
if (!isFullDetail(fullDetail)) {
throw new UnsupportedOperationException(
"FullDetail must be true when using JsonToStringStyle");
}
super.append(buffer, fieldName, array, fullDetail);
}
@Override
public void append(final StringBuffer buffer, final String fieldName,
final short[] array, final Boolean fullDetail) {
if (fieldName == null) {
throw new UnsupportedOperationException(
"Field names are mandatory when using JsonToStringStyle");
}
if (!isFullDetail(fullDetail)) {
throw new UnsupportedOperationException(
"FullDetail must be true when using JsonToStringStyle");
}
super.append(buffer, fieldName, array, fullDetail);
}
@Override
public void append(final StringBuffer buffer, final String fieldName, final byte[] array,
final Boolean fullDetail) {
if (fieldName == null) {
throw new UnsupportedOperationException(
"Field names are mandatory when using JsonToStringStyle");
}
if (!isFullDetail(fullDetail)) {
throw new UnsupportedOperationException(
"FullDetail must be true when using JsonToStringStyle");
}
super.append(buffer, fieldName, array, fullDetail);
}
@Override
public void append(final StringBuffer buffer, final String fieldName, final char[] array,
final Boolean fullDetail) {
if (fieldName == null) {
throw new UnsupportedOperationException(
"Field names are mandatory when using JsonToStringStyle");
}
if (!isFullDetail(fullDetail)) {
throw new UnsupportedOperationException(
"FullDetail must be true when using JsonToStringStyle");
}
super.append(buffer, fieldName, array, fullDetail);
}
@Override
public void append(final StringBuffer buffer, final String fieldName,
final double[] array, final Boolean fullDetail) {
if (fieldName == null) {
throw new UnsupportedOperationException(
"Field names are mandatory when using JsonToStringStyle");
}
if (!isFullDetail(fullDetail)) {
throw new UnsupportedOperationException(
"FullDetail must be true when using JsonToStringStyle");
}
super.append(buffer, fieldName, array, fullDetail);
}
@Override
public void append(final StringBuffer buffer, final String fieldName,
final float[] array, final Boolean fullDetail) {
if (fieldName == null) {
throw new UnsupportedOperationException(
"Field names are mandatory when using JsonToStringStyle");
}
if (!isFullDetail(fullDetail)) {
throw new UnsupportedOperationException(
"FullDetail must be true when using JsonToStringStyle");
}
super.append(buffer, fieldName, array, fullDetail);
}
@Override
public void append(final StringBuffer buffer, final String fieldName,
final boolean[] array, final Boolean fullDetail) {
if (fieldName == null) {
throw new UnsupportedOperationException(
"Field names are mandatory when using JsonToStringStyle");
}
if (!isFullDetail(fullDetail)) {
throw new UnsupportedOperationException(
"FullDetail must be true when using JsonToStringStyle");
}
super.append(buffer, fieldName, array, fullDetail);
}
@Override
public void append(final StringBuffer buffer, final String fieldName, final Object value,
final Boolean fullDetail) {
if (fieldName == null) {
throw new UnsupportedOperationException(
"Field names are mandatory when using JsonToStringStyle");
}
if (!isFullDetail(fullDetail)) {
throw new UnsupportedOperationException(
"FullDetail must be true when using JsonToStringStyle");
}
super.append(buffer, fieldName, value, fullDetail);
}
@Override
protected void appendDetail(final StringBuffer buffer, final String fieldName, final char value) {
appendValueAsString(buffer, String.valueOf(value));
}
@Override
protected void appendDetail(final StringBuffer buffer, final String fieldName, final Object value) {
if (value == null) {
appendNullText(buffer, fieldName);
return;
}
if (value instanceof String || value instanceof Character) {
appendValueAsString(buffer, value.toString());
return;
}
if (value instanceof Number || value instanceof Boolean) {
buffer.append(value);
return;
}
final String valueAsString = value.toString();
if (isJsonObject(valueAsString) || isJsonArray(valueAsString)) {
buffer.append(value);
return;
}
appendDetail(buffer, fieldName, valueAsString);
}
@Override
protected void appendDetail(final StringBuffer buffer, final String fieldName, final Collection coll) {
if (coll != null && !coll.isEmpty()) {
buffer.append(getArrayStart());
int i = 0;
for (final Object item : coll) {
appendDetail(buffer, fieldName, i++, item);
}
buffer.append(getArrayEnd());
return;
}
buffer.append(coll);
}
@Override
protected void appendDetail(final StringBuffer buffer, final String fieldName, final Map map) {
if (map != null && !map.isEmpty()) {
buffer.append(getContentStart());
boolean firstItem = true;
for (final Entry entry : map.entrySet()) {
final String keyStr = Objects.toString(entry.getKey(), null);
if (keyStr != null) {
if (firstItem) {
firstItem = false;
} else {
appendFieldEnd(buffer, keyStr);
}
appendFieldStart(buffer, keyStr);
final Object value = entry.getValue();
if (value == null) {
appendNullText(buffer, keyStr);
} else {
appendInternal(buffer, keyStr, value, true);
}
}
}
buffer.append(getContentEnd());
return;
}
buffer.append(map);
}
private boolean isJsonArray(final String valueAsString) {
return valueAsString.startsWith(getArrayStart())
&& valueAsString.endsWith(getArrayEnd());
}
private boolean isJsonObject(final String valueAsString) {
return valueAsString.startsWith(getContentStart())
&& valueAsString.endsWith(getContentEnd());
}
/**
* Appends the given String enclosed in double-quotes to the given StringBuffer.
*
* @param buffer the StringBuffer to append the value to.
* @param value the value to append.
*/
private void appendValueAsString(final StringBuffer buffer, final String value) {
buffer.append('"').append(StringEscapeUtils.escapeJson(value)).append('"');
}
@Override
protected void appendFieldStart(final StringBuffer buffer, final String fieldName) {
if (fieldName == null) {
throw new UnsupportedOperationException(
"Field names are mandatory when using JsonToStringStyle");
}
super.appendFieldStart(buffer, FIELD_NAME_QUOTE + StringEscapeUtils.escapeJson(fieldName)
+ FIELD_NAME_QUOTE);
}
/**
* Ensure Singleton after serialization.
*
* @return the singleton
*/
private Object readResolve() {
return JSON_STYLE;
}
}
}