DataBinder.java
| Index Score | ||
|---|---|---|
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org.springframework.validation |
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Spring Framework |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
| Metric | Description | |
|---|---|---|
| DOC_COMMENT | Number of javadoc comment lines |  |
| DECL_COMMENTS | Comments in declarations | |
| COMMENTS | Comment lines | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| SIZE | Size of the file in bytes | |
| JAVA0270 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| FUNCTIONS | Number of function declarations | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| LINES | Number of lines in the source file | |
| EXITS | Procedure exits | |
| RETURNS | Number of return points from functions | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| JAVA0259 | JAVA0259 Return of collection/array field | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| CYCLOMATIC | Cyclomatic complexity | |
| BLOCKS | Number of blocks | |
| JAVA0179 | JAVA0179 Local variable hides visible field | |
| PARAMS | Number of formal parameter declarations | |
| UNIQUE_OPERATORS | Number of unique operators | |
| EXEC_COMMENTS | Comments in executable code | |
| JAVA0100 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| NEST_DEPTH | Maximum nesting depth | |
/*
* Copyright 2002-2008 the original author or authors.
*
* Licensed 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.springframework.validation;
import java.beans.PropertyEditor;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.ConfigurablePropertyAccessor;
import org.springframework.beans.MutablePropertyValues;
import org.springframework.beans.PropertyAccessException;
import org.springframework.beans.PropertyAccessorUtils;
import org.springframework.beans.PropertyBatchUpdateException;
import org.springframework.beans.PropertyEditorRegistry;
import org.springframework.beans.PropertyValue;
import org.springframework.beans.PropertyValues;
import org.springframework.beans.SimpleTypeConverter;
import org.springframework.beans.TypeConverter;
import org.springframework.beans.TypeMismatchException;
import org.springframework.core.MethodParameter;
import org.springframework.util.Assert;
import org.springframework.util.ObjectUtils;
import org.springframework.util.PatternMatchUtils;
import org.springframework.util.StringUtils;
/**
* Binder that allows for setting property values onto a target object,
* including support for validation and binding result analysis.
* The binding process can be customized through specifying allowed fields,
* required fields, custom editors, etc.
*
* <p>Note that there are potential security implications in failing to set an array
* of allowed fields. In the case of HTTP form POST data for example, malicious clients
* can attempt to subvert an application by supplying values for fields or properties
* that do not exist on the form. In some cases this could lead to illegal data being
* set on command objects <i>or their nested objects</i>. For this reason, it is
* <b>highly recommended to specify the {@link #setAllowedFields allowedFields} property</b>
* on the DataBinder.
*
* <p>The binding results can be examined via the {@link BindingResult} interface,
* extending the {@link Errors} interface: see the {@link #getBindingResult()} method.
* Missing fields and property access exceptions will be converted to {@link FieldError FieldErrors},
* collected in the Errors instance, using the following error codes:
*
* <ul>
* <li>Missing field error: "required"
* <li>Type mismatch error: "typeMismatch"
* <li>Method invocation error: "methodInvocation"
* </ul>
*
* <p>By default, binding errors get resolved through the {@link BindingErrorProcessor}
* strategy, processing for missing fields and property access exceptions: see the
* {@link #setBindingErrorProcessor} method. You can override the default strategy
* if needed, for example to generate different error codes.
*
* <p>Custom validation errors can be added afterwards. You will typically want to resolve
* such error codes into proper user-visible error messages; this can be achieved through
* resolving each error via a {@link org.springframework.context.MessageSource}, which is
* able to resolve an {@link ObjectError}/{@link FieldError} through its
* {@link org.springframework.context.MessageSource#getMessage(org.springframework.context.MessageSourceResolvable, java.util.Locale)}
* method. The list of message codes can be customized through the {@link MessageCodesResolver}
* strategy: see the {@link #setMessageCodesResolver} method. {@link DefaultMessageCodesResolver}'s
* javadoc states details on the default resolution rules.
*
* <p>This generic data binder can be used in any kind of environment.
* It is typically used by Spring web MVC controllers, via the web-specific
* subclasses {@link org.springframework.web.bind.ServletRequestDataBinder}
* and {@link org.springframework.web.portlet.bind.PortletRequestDataBinder}.
*
* @author Rod Johnson
* @author Juergen Hoeller
* @author Rob Harrop
* @see #setAllowedFields
* @see #setRequiredFields
* @see #registerCustomEditor
* @see #setMessageCodesResolver
* @see #setBindingErrorProcessor
* @see #bind
* @see #getBindingResult
* @see DefaultMessageCodesResolver
* @see DefaultBindingErrorProcessor
* @see org.springframework.context.MessageSource
* @see org.springframework.web.bind.ServletRequestDataBinder
*/
public class DataBinder implements PropertyEditorRegistry, TypeConverter {
/** Default object name used for binding: "target" */
public static final String DEFAULT_OBJECT_NAME = "target";
/**
* We'll create a lot of DataBinder instances: Let's use a static logger.
*/
protected static final Log logger = LogFactory.getLog(DataBinder.class);
private final Object target;
private final String objectName;
private AbstractPropertyBindingResult bindingResult;
private SimpleTypeConverter typeConverter;
private BindException bindException;
private boolean ignoreUnknownFields = true;
private boolean ignoreInvalidFields = false;
private String[] allowedFields;
private String[] disallowedFields;
private String[] requiredFields;
private BindingErrorProcessor bindingErrorProcessor = new DefaultBindingErrorProcessor();
/**
* Create a new DataBinder instance, with default object name.
* @param target the target object to bind onto (or <code>null</code>
* if the binder is just used to convert a plain parameter value)
* @see #DEFAULT_OBJECT_NAME
*/
public DataBinder(Object target) {
this(target, DEFAULT_OBJECT_NAME);
}
/**
* Create a new DataBinder instance.
* @param target the target object to bind onto (or <code>null</code>
* if the binder is just used to convert a plain parameter value)
* @param objectName the name of the target object
*/
public DataBinder(Object target, String objectName) {
this.target = target;
this.objectName = objectName;
}
/**
* Return the wrapped target object.
*/
public Object getTarget() {
return this.target;
}
/**
* Return the name of the bound object.
*/
public String getObjectName() {
return this.objectName;
}
/**
* Initialize standard JavaBean property access for this DataBinder.
* <p>This is the default; an explicit call just leads to eager initialization.
* @see #initDirectFieldAccess()
*/
public void initBeanPropertyAccess() {
Assert.isNull(this.bindingResult,
"DataBinder is already initialized - call initBeanPropertyAccess before any other configuration methods");
this.bindingResult = new BeanPropertyBindingResult(getTarget(), getObjectName());
}
/**
* Initialize direct field access for this DataBinder,
* as alternative to the default bean property access.
* @see #initBeanPropertyAccess()
*/
public void initDirectFieldAccess() {
Assert.isNull(this.bindingResult,
"DataBinder is already initialized - call initDirectFieldAccess before any other configuration methods");
this.bindingResult = new DirectFieldBindingResult(getTarget(), getObjectName());
}
/**
* Return the internal BindingResult held by this DataBinder,
* as AbstractPropertyBindingResult.
*/
protected AbstractPropertyBindingResult getInternalBindingResult() {
if (this.bindingResult == null) {
initBeanPropertyAccess();
}
return this.bindingResult;
}
/**
* Return the underlying PropertyAccessor of this binder's BindingResult.
*/
protected ConfigurablePropertyAccessor getPropertyAccessor() {
return getInternalBindingResult().getPropertyAccessor();
}
/**
* Return this binder's underlying SimpleTypeConverter.
*/
protected SimpleTypeConverter getSimpleTypeConverter() {
if (this.typeConverter == null) {
this.typeConverter = new SimpleTypeConverter();
}
return this.typeConverter;
}
/**
* Return the underlying TypeConverter of this binder's BindingResult.
*/
protected PropertyEditorRegistry getPropertyEditorRegistry() {
if (getTarget() != null) {
return getInternalBindingResult().getPropertyAccessor();
}
else {
return getSimpleTypeConverter();
}
}
/**
* Return the underlying TypeConverter of this binder's BindingResult.
*/
protected TypeConverter getTypeConverter() {
if (getTarget() != null) {
return getInternalBindingResult().getPropertyAccessor();
}
else {
return getSimpleTypeConverter();
}
}
/**
* Return the BindingResult instance created by this DataBinder.
* This allows for convenient access to the binding results after
* a bind operation.
* @return the BindingResult instance, to be treated as BindingResult
* or as Errors instance (Errors is a super-interface of BindingResult)
* @see Errors
* @see #bind
*/
public BindingResult getBindingResult() {
return getInternalBindingResult();
}
/**
* Return the Errors instance for this data binder.
* @return the Errors instance, to be treated as Errors or as BindException
* @deprecated in favor of {@link #getBindingResult()}.
* Use the {@link BindException#BindException(BindingResult)} constructor
* to create a BindException instance if still needed.
* @see #getBindingResult()
*/
public BindException getErrors() {
if (this.bindException == null) {
this.bindException = new BindException(getBindingResult());
}
return this.bindException;
}
/**
* Set whether to ignore unknown fields, that is, whether to ignore bind
* parameters that do not have corresponding fields in the target object.
* <p>Default is "true". Turn this off to enforce that all bind parameters
* must have a matching field in the target object.
* <p>Note that this setting only applies to <i>binding</i> operations
* on this DataBinder, not to <i>retrieving</i> values via its
* {@link #getBindingResult() BindingResult}.
* @see #bind
*/
public void setIgnoreUnknownFields(boolean ignoreUnknownFields) {
this.ignoreUnknownFields = ignoreUnknownFields;
}
/**
* Return whether to ignore unknown fields when binding.
*/
public boolean isIgnoreUnknownFields() {
return this.ignoreUnknownFields;
}
/**
* Set whether to ignore invalid fields, that is, whether to ignore bind
* parameters that have corresponding fields in the target object which are
* not accessible (for example because of null values in the nested path).
* <p>Default is "false". Turn this on to ignore bind parameters for
* nested objects in non-existing parts of the target object graph.
* <p>Note that this setting only applies to <i>binding</i> operations
* on this DataBinder, not to <i>retrieving</i> values via its
* {@link #getBindingResult() BindingResult}.
* @see #bind
*/
public void setIgnoreInvalidFields(boolean ignoreInvalidFields) {
this.ignoreInvalidFields = ignoreInvalidFields;
}
/**
* Return whether to ignore invalid fields when binding.
*/
public boolean isIgnoreInvalidFields() {
return this.ignoreInvalidFields;
}
/**
* Register fields that should be allowed for binding. Default is all
* fields. Restrict this for example to avoid unwanted modifications
* by malicious users when binding HTTP request parameters.
* <p>Supports "xxx*", "*xxx" and "*xxx*" patterns. More sophisticated matching
* can be implemented by overriding the <code>isAllowed</code> method.
* <p>Alternatively, specify a list of <i>disallowed</i> fields.
* @param allowedFields array of field names
* @see #setDisallowedFields
* @see #isAllowed(String)
* @see org.springframework.web.bind.ServletRequestDataBinder
*/
public void setAllowedFields(String[] allowedFields) {
this.allowedFields = PropertyAccessorUtils.canonicalPropertyNames(allowedFields);
}
/**
* Return the fields that should be allowed for binding.
* @return array of field names
*/
public String[] getAllowedFields() {
return this.allowedFields;
}
/**
* Register fields that should <i>not</i> be allowed for binding. Default is none.
* Mark fields as disallowed for example to avoid unwanted modifications
* by malicious users when binding HTTP request parameters.
* <p>Supports "xxx*", "*xxx" and "*xxx*" patterns. More sophisticated matching
* can be implemented by overriding the <code>isAllowed</code> method.
* <p>Alternatively, specify a list of <i>allowed</i> fields.
* @param disallowedFields array of field names
* @see #setAllowedFields
* @see #isAllowed(String)
* @see org.springframework.web.bind.ServletRequestDataBinder
*/
public void setDisallowedFields(String[] disallowedFields) {
this.disallowedFields = PropertyAccessorUtils.canonicalPropertyNames(disallowedFields);
}
/**
* Return the fields that should <i>not</i> be allowed for binding.
* @return array of field names
*/
public String[] getDisallowedFields() {
return this.disallowedFields;
}
/**
* Register fields that are required for each binding process.
* <p>If one of the specified fields is not contained in the list of
* incoming property values, a corresponding "missing field" error
* will be created, with error code "required" (by the default
* binding error processor).
* @param requiredFields array of field names
* @see #setBindingErrorProcessor
* @see DefaultBindingErrorProcessor#MISSING_FIELD_ERROR_CODE
*/
public void setRequiredFields(String[] requiredFields) {
this.requiredFields = PropertyAccessorUtils.canonicalPropertyNames(requiredFields);
if (logger.isDebugEnabled()) {
logger.debug("DataBinder requires binding of required fields [" +
StringUtils.arrayToCommaDelimitedString(requiredFields) + "]");
}
}
/**
* Return the fields that are required for each binding process.
* @return array of field names
*/
public String[] getRequiredFields() {
return this.requiredFields;
}
/**
* Set whether to extract the old field value when applying a
* property editor to a new value for a field.
* <p>Default is "true", exposing previous field values to custom editors.
* Turn this to "false" to avoid side effects caused by getters.
*/
public void setExtractOldValueForEditor(boolean extractOldValueForEditor) {
getPropertyAccessor().setExtractOldValueForEditor(extractOldValueForEditor);
}
/**
* Set the strategy to use for resolving errors into message codes.
* Applies the given strategy to the underlying errors holder.
* <p>Default is a DefaultMessageCodesResolver.
* @see BeanPropertyBindingResult#setMessageCodesResolver
* @see DefaultMessageCodesResolver
*/
public void setMessageCodesResolver(MessageCodesResolver messageCodesResolver) {
getInternalBindingResult().setMessageCodesResolver(messageCodesResolver);
}
/**
* Set the strategy to use for processing binding errors, that is,
* required field errors and <code>PropertyAccessException</code>s.
* <p>Default is a DefaultBindingErrorProcessor.
* @see DefaultBindingErrorProcessor
*/
public void setBindingErrorProcessor(BindingErrorProcessor bindingErrorProcessor) {
this.bindingErrorProcessor = bindingErrorProcessor;
}
/**
* Return the strategy for processing binding errors.
*/
public BindingErrorProcessor getBindingErrorProcessor() {
return this.bindingErrorProcessor;
}
//---------------------------------------------------------------------
// Implementation of PropertyEditorRegistry/TypeConverter interface
//---------------------------------------------------------------------
public void registerCustomEditor(Class requiredType, PropertyEditor propertyEditor) {
getPropertyEditorRegistry().registerCustomEditor(requiredType, propertyEditor);
}
public void registerCustomEditor(Class requiredType, String field, PropertyEditor propertyEditor) {
getPropertyEditorRegistry().registerCustomEditor(requiredType, field, propertyEditor);
}
public PropertyEditor findCustomEditor(Class requiredType, String propertyPath) {
return getPropertyEditorRegistry().findCustomEditor(requiredType, propertyPath);
}
public Object convertIfNecessary(Object value, Class requiredType) throws TypeMismatchException {
return getTypeConverter().convertIfNecessary(value, requiredType);
}
public Object convertIfNecessary(
Object value, Class requiredType, MethodParameter methodParam) throws TypeMismatchException {
return getTypeConverter().convertIfNecessary(value, requiredType, methodParam);
}
/**
* Bind the given property values to this binder's target.
* <p>This call can create field errors, representing basic binding
* errors like a required field (code "required"), or type mismatch
* between value and bean property (code "typeMismatch").
* <p>Note that the given PropertyValues should be a throwaway instance:
* For efficiency, it will be modified to just contain allowed fields if it
* implements the MutablePropertyValues interface; else, an internal mutable
* copy will be created for this purpose. Pass in a copy of the PropertyValues
* if you want your original instance to stay unmodified in any case.
* @param pvs property values to bind
* @see #doBind(org.springframework.beans.MutablePropertyValues)
*/
public void bind(PropertyValues pvs) {
MutablePropertyValues mpvs = (pvs instanceof MutablePropertyValues) ?
(MutablePropertyValues) pvs : new MutablePropertyValues(pvs);
doBind(mpvs);
}
/**
* Actual implementation of the binding process, working with the
* passed-in MutablePropertyValues instance.
* @param mpvs the property values to bind,
* as MutablePropertyValues instance
* @see #checkAllowedFields
* @see #checkRequiredFields
* @see #applyPropertyValues
*/
protected void doBind(MutablePropertyValues mpvs) {
checkAllowedFields(mpvs);
checkRequiredFields(mpvs);
applyPropertyValues(mpvs);
}
/**
* Check the given property values against the allowed fields,
* removing values for fields that are not allowed.
* @param mpvs the property values to be bound (can be modified)
* @see #getAllowedFields
* @see #isAllowed(String)
*/
protected void checkAllowedFields(MutablePropertyValues mpvs) {
PropertyValue[] pvs = mpvs.getPropertyValues();
for (int i = 0; i < pvs.length; i++) {
PropertyValue pv = pvs[i];
String field = PropertyAccessorUtils.canonicalPropertyName(pv.getName());
if (!isAllowed(field)) {
mpvs.removePropertyValue(pv);
getBindingResult().recordSuppressedField(field);
if (logger.isDebugEnabled()) {
logger.debug("Field [" + field + "] has been removed from PropertyValues " +
"and will not be bound, because it has not been found in the list of allowed fields");
}
}
}
}
/**
* Return if the given field is allowed for binding.
* Invoked for each passed-in property value.
* <p>The default implementation checks for "xxx*", "*xxx" and "*xxx*" matches,
* as well as direct equality, in the specified lists of allowed fields and
* disallowed fields. A field matching a disallowed pattern will not be accepted
* even if it also happens to match a pattern in the allowed list.
* <p>Can be overridden in subclasses.
* @param field the field to check
* @return if the field is allowed
* @see #setAllowedFields
* @see #setDisallowedFields
* @see org.springframework.util.PatternMatchUtils#simpleMatch(String, String)
*/
protected boolean isAllowed(String field) {
String[] allowed = getAllowedFields();
String[] disallowed = getDisallowedFields();
return ((ObjectUtils.isEmpty(allowed) || PatternMatchUtils.simpleMatch(allowed, field)) &&
(ObjectUtils.isEmpty(disallowed) || !PatternMatchUtils.simpleMatch(disallowed, field)));
}
/**
* Check the given property values against the required fields,
* generating missing field errors where appropriate.
* @param mpvs the property values to be bound (can be modified)
* @see #getRequiredFields
* @see #getBindingErrorProcessor
* @see BindingErrorProcessor#processMissingFieldError
*/
protected void checkRequiredFields(MutablePropertyValues mpvs) {
String[] requiredFields = getRequiredFields();
if (!ObjectUtils.isEmpty(requiredFields)) {
Map propertyValues = new HashMap();
PropertyValue[] pvs = mpvs.getPropertyValues();
for (int i = 0; i < pvs.length; i++) {
PropertyValue pv = pvs[i];
String canonicalName = PropertyAccessorUtils.canonicalPropertyName(pv.getName());
propertyValues.put(canonicalName, pv);
}
for (int i = 0; i < requiredFields.length; i++) {
String field = requiredFields[i];
PropertyValue pv = (PropertyValue) propertyValues.get(field);
if (pv == null || pv.getValue() == null ||
(pv.getValue() instanceof String && !StringUtils.hasText((String) pv.getValue()))) {
// Use bind error processor to create FieldError.
getBindingErrorProcessor().processMissingFieldError(field, getInternalBindingResult());
// Remove property from property values to bind:
// It has already caused a field error with a rejected value.
if (pv != null) {
mpvs.removePropertyValue(pv);
propertyValues.remove(field);
}
}
}
}
}
/**
* Apply given property values to the target object.
* <p>Default implementation applies all of the supplied property
* values as bean property values. By default, unknown fields will
* be ignored.
* @param mpvs the property values to be bound (can be modified)
* @see #getTarget
* @see #getPropertyAccessor
* @see #isIgnoreUnknownFields
* @see #getBindingErrorProcessor
* @see BindingErrorProcessor#processPropertyAccessException
*/
protected void applyPropertyValues(MutablePropertyValues mpvs) {
try {
// Bind request parameters onto target object.
getPropertyAccessor().setPropertyValues(mpvs, isIgnoreUnknownFields(), isIgnoreInvalidFields());
}
catch (PropertyBatchUpdateException ex) {
// Use bind error processor to create FieldErrors.
PropertyAccessException[] exs = ex.getPropertyAccessExceptions();
for (int i = 0; i < exs.length; i++) {
getBindingErrorProcessor().processPropertyAccessException(exs[i], getInternalBindingResult());
}
}
}
/**
* Close this DataBinder, which may result in throwing
* a BindException if it encountered any errors.
* @return the model Map, containing target object and Errors instance
* @throws BindException if there were any errors in the bind operation
* @see BindingResult#getModel()
*/
public Map close() throws BindException {
if (getBindingResult().hasErrors()) {
throw new BindException(getBindingResult());
}
return getBindingResult().getModel();
}
}
The table below shows all metrics for DataBinder.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 59.00 | Number of blocks | |
| BLOCK_COMMENT | 15.00 | Number of block comment lines | |
| COMMENTS | 312.00 | Comment lines | |
| COMMENT_DENSITY | 1.79 | Comment density | |
| COMPARISONS | 23.00 | Number of comparison operators | |
| CYCLOMATIC | 63.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 39.00 | Comments in declarations | |
| DOC_COMMENT | 289.00 | Number of javadoc comment lines | |
| ELOC | 174.00 | Effective lines of code | |
| EXEC_COMMENTS | 4.00 | Comments in executable code | |
| EXITS | 52.00 | Procedure exits | |
| FUNCTIONS | 39.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 62.19 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 75.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 0.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 0.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 0.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 0.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 0.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 0.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 0.00 | JAVA0035 Missing braces in for statement | |
| JAVA0036 | 0.00 | JAVA0036 Missing braces in while statement | |
| JAVA0038 | 0.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 0.00 | JAVA0039 Break statement with label | |
| JAVA0040 | 0.00 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0041 | 0.00 | JAVA0041 Nested synchronized block | |
| JAVA0042 | 0.00 | JAVA0042 Empty synchronized statement | |
| JAVA0043 | 0.00 | JAVA0043 Inner class does not use outer class | |
| JAVA0044 | 0.00 | JAVA0044 Serializable class with no instance variables | |
| JAVA0045 | 0.00 | JAVA0045 Serializable class with only transient fields | |
| JAVA0046 | 0.00 | JAVA0046 Name of class not derived from Exception ends with 'Exception' | |
| JAVA0047 | 0.00 | JAVA0047 Serializable class derives from invalid base class | |
| JAVA0048 | 0.00 | JAVA0048 Name of class derived from Exception does not end with 'Exception' | |
| JAVA0049 | 0.00 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0050 | 0.00 | JAVA0050 Class derives from java.lang.Error | |
| JAVA0051 | 0.00 | JAVA0051 Class derives from java.lang.RuntimeException | |
| JAVA0052 | 0.00 | JAVA0052 Class derives from java.lang.Throwable | |
| JAVA0053 | 0.00 | JAVA0053 Unused label | |
| JAVA0054 | 0.00 | JAVA0054 Inheritance depth N exceeds maximum M | |
| JAVA0055 | 0.00 | JAVA0055 Class should be interface | |
| JAVA0056 | 0.00 | JAVA0056 Unnecessary abstract modifier for interface or annotation | |
| JAVA0057 | 0.00 | JAVA0057 Unnecessary default constructor | |
| JAVA0058 | 0.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 0.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 0.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 0.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 0.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 0.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 0.00 | JAVA0076 Use of magic number | |
| JAVA0077 | 0.00 | JAVA0077 Private field not used in declaring class | |
| JAVA0078 | 0.00 | JAVA0078 Floating point values compared with == | |
| JAVA0079 | 0.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 0.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 0.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 0.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 0.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 0.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 0.00 | JAVA0087 Use of Thread.sleep() | |
| JAVA0089 | 0.00 | JAVA0089 Use of restricted package | |
| JAVA0092 | 0.00 | JAVA0092 Use of restricted type | |
| JAVA0093 | 0.00 | JAVA0093 Redundant assignment | |
| JAVA0094 | 0.00 | JAVA0094 Field hides a superclass field | |
| JAVA0095 | 0.00 | JAVA0095 Uninitialized private field | |
| JAVA0096 | 0.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 0.00 | JAVA0098 Minimize use of implicit field initializers | |
| JAVA0100 | 1.00 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0101 | 0.00 | JAVA0101 Unnecessary modifier for field in interface | |
| JAVA0102 | 0.00 | JAVA0102 Last statement in finalize() not super.finalize() | |
| JAVA0103 | 0.00 | JAVA0103 Explicit call to finalize() | |
| JAVA0104 | 0.00 | JAVA0104 finalize() only calls super.finalize() | |
| JAVA0105 | 0.00 | JAVA0105 Duplicate import declaration | |
| JAVA0106 | 0.00 | JAVA0106 Unnecessary import from current package | |
| JAVA0108 | 5.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 10.00 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0111 | 0.00 | JAVA0111 Incorrect javadoc: @return tag for void method | |
| JAVA0112 | 0.00 | JAVA0112 Incorrect javadoc: no exception 'exception' in throws | |
| JAVA0113 | 0.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 1.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 0.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 0.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 0.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 0.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 2.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 0.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 0.00 | JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method' | |
| JAVA0136 | 1.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 0.00 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0139 | 0.00 | JAVA0139 Definition of main other than public static void main(java.lang.String[]) | |
| JAVA0141 | 0.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 0.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 1.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 671.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 0.00 | JAVA0150 java.lang.Error (or subclass) thrown | |
| JAVA0153 | 0.00 | JAVA0153 Inefficient conversion of integer to string | |
| JAVA0159 | 0.00 | JAVA0159 Inefficient conversion of string to integer | |
| JAVA0160 | 0.00 | JAVA0160 Method does not throw specified exception | |
| JAVA0161 | 0.00 | JAVA0161 Conditional wait() not in loop | |
| JAVA0163 | 0.00 | JAVA0163 Empty statement | |
| JAVA0165 | 0.00 | JAVA0165 Conflicting return statement in finally block | |
| JAVA0166 | 0.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 0.00 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0171 | 0.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 0.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 0.00 | JAVA0174 Assigned local variable never used | |
| JAVA0175 | 0.00 | JAVA0175 Successive assignment to variable | |
| JAVA0176 | 0.00 | JAVA0176 Local variable name does not have required form | |
| JAVA0177 | 0.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 1.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 0.00 | JAVA0234 Class is Serializable but does not define serialVersionUID | |
| JAVA0235 | 0.00 | JAVA0235 Class defines serialVersionUID but does not implement Serializable | |
| JAVA0236 | 0.00 | JAVA0236 Attempt to clone an object which does not implement Cloneable | |
| JAVA0237 | 0.00 | JAVA0237 Class implements Cloneable but does not have public clone method | |
| JAVA0238 | 0.00 | JAVA0238 Clone method does not call super.clone() | |
| JAVA0239 | 0.00 | JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable | |
| JAVA0240 | 0.00 | JAVA0240 Serializable class which declares readObject or writeObject but not both | |
| JAVA0241 | 0.00 | JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class | |
| JAVA0242 | 0.00 | JAVA0242 Transient field in non-Serializable class | |
| JAVA0243 | 0.00 | JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected | |
| JAVA0244 | 0.00 | JAVA0244 Field or method name in subclass differs only by case from inherited field or method | |
| JAVA0245 | 0.00 | JAVA0245 JUnit TestCase with non-trivial constructor | |
| JAVA0246 | 0.00 | JAVA0246 JUnit assertXXX statement missing message parameter | |
| JAVA0247 | 0.00 | JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method | |
| JAVA0248 | 0.00 | JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature | |
| JAVA0249 | 0.00 | JAVA0249 JUnit TestCase 'suite()' should be declared static | |
| JAVA0250 | 0.00 | JAVA0250 JUnit TestCase declares testXXX method with incorrect signature | |
| JAVA0251 | 0.00 | JAVA0251 Use '%n' for line breaks in printf/format for platform independence | |
| JAVA0252 | 0.00 | JAVA0252 'enum' is a Java 1.5 reserved word | |
| JAVA0253 | 0.00 | JAVA0253 Not all enum constants consumed in switch statement | |
| JAVA0254 | 0.00 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0255 | 0.00 | JAVA0255 Result of method invocation not used | |
| JAVA0256 | 0.00 | JAVA0256 Assignment of external collection/array to field | |
| JAVA0257 | 0.00 | JAVA0257 Use of 'Constant Interface' anti-pattern | |
| JAVA0258 | 0.00 | JAVA0258 Implement Iterable for foreach compatibility | |
| JAVA0259 | 3.00 | JAVA0259 Return of collection/array field | |
| JAVA0260 | 0.00 | JAVA0260 Use 'enum' instead of Enumerated Type pattern | |
| JAVA0261 | 0.00 | JAVA0261 Use specialized Enum collection types | |
| JAVA0262 | 0.00 | JAVA0262 Use of char in integer context | |
| JAVA0263 | 0.00 | JAVA0263 Long literal ends with 'l' instead of 'L' | |
| JAVA0264 | 0.00 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0265 | 0.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 0.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 0.00 | JAVA0267 Use of System.err | |
| JAVA0269 | 0.00 | JAVA0269 Contents of StringBuffer never used | |
| JAVA0270 | 4.00 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0271 | 0.00 | JAVA0271 Minimize use of on-demand (.*) static imports | |
| JAVA0272 | 0.00 | JAVA0272 Thread.run() called | |
| JAVA0273 | 0.00 | JAVA0273 Non-final derivative of Thread calls start() in constructor | |
| JAVA0274 | 0.00 | JAVA0274 Serializable class has a synchronized readObject() | |
| JAVA0275 | 0.00 | JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods | |
| JAVA0276 | 0.00 | JAVA0276 Unnecessary use of String constructor | |
| JAVA0277 | 0.00 | JAVA0277 Iterator.next() implementation does not throw NoSuchElementException | |
| JAVA0278 | 0.00 | JAVA0278 Unnecessary use of Boolean constructor | |
| JAVA0279 | 0.00 | JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method | |
| JAVA0280 | 0.00 | JAVA0280 IllegalMonitorStateException caught | |
| JAVA0281 | 0.00 | JAVA0281 Iterator.next() not called in loop | |
| JAVA0282 | 0.00 | JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext() | |
| JAVA0283 | 0.00 | JAVA0283 Control variable not updated in loop body | |
| JAVA0284 | 0.00 | JAVA0284 Explicit garbage collection | |
| JAVA0285 | 0.00 | JAVA0285 Dereference of potentially null variable | |
| JAVA0286 | 0.00 | JAVA0286 Dereference of null variable | |
| JAVA0287 | 0.00 | JAVA0287 Unnecessary null check | |
| JAVA0288 | 0.00 | JAVA0288 Inconsistent null check | |
| LINES | 613.00 | Number of lines in the source file | |
| LINE_COMMENT | 8.00 | Number of line comments | |
| LOC | 234.00 | Lines of code | |
| LOGICAL_LINES | 114.00 | Number of statements | |
| LOOPS | 4.00 | Number of loops | |
| NEST_DEPTH | 5.00 | Maximum nesting depth | |
| OPERANDS | 511.00 | Number of operands | |
| OPERATORS | 1043.00 | Number of operators | |
| PARAMS | 29.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 1554.00 | Halstead program length | |
| PROGRAM_VOCAB | 235.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 46.00 | Number of return points from functions | |
| SIZE | 22855.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 189.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 46.00 | Number of unique operators | |
| WHITESPACE | 67.00 | Number of whitespace lines | |