DensityBasedClustererSplitEvaluator.java
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weka.experiment |
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Weka |
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 | |
|---|---|---|
| DECL_COMMENTS | Comments in declarations |  |
| JAVA0150 | JAVA0150 java.lang.Error (or subclass) thrown | |
| EXEC_COMMENTS | Comments in executable code | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| DOC_COMMENT | Number of javadoc comment lines | |
| LOOPS | Number of loops | |
| COMMENTS | Comment lines | |
| LINE_COMMENT | Number of line comments | |
| SIZE | Size of the file in bytes | |
| JAVA0049 | JAVA0049 Nested block at depth N (maximum: M) | |
| LINES | Number of lines in the source file | |
| JAVA0166 | JAVA0166 Generic exception caught | |
| LOGICAL_LINES | Number of statements | |
| EXITS | Procedure exits | |
| BLOCKS | Number of blocks | |
| ELOC | Effective lines of code | |
| OPERATORS | Number of operators | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| JAVA0267 | JAVA0267 Use of System.err | |
| PROGRAM_LENGTH | Halstead program length | |
| UNIQUE_OPERANDS | Number of unique operands | |
| JAVA0109 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| LOC | Lines of code | |
| RETURNS | Number of return points from functions | |
| CYCLOMATIC | Cyclomatic complexity | |
| OPERANDS | Number of operands | |
| UNIQUE_OPERATORS | Number of unique operators | |
| NEST_DEPTH | Maximum nesting depth | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| PARAMS | Number of formal parameter declarations | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* DensityBasedClustererSplitEvaluator.java
* Copyright (C) 2008 Pentaho Corporation
*
*/
package weka.experiment;
import weka.clusterers.ClusterEvaluation;
import weka.clusterers.Clusterer;
import weka.clusterers.AbstractClusterer;
import weka.clusterers.AbstractDensityBasedClusterer;
import weka.clusterers.DensityBasedClusterer;
import weka.clusterers.EM;
import weka.core.AdditionalMeasureProducer;
import weka.core.Instances;
import weka.core.Option;
import weka.core.OptionHandler;
import weka.core.RevisionHandler;
import weka.core.RevisionUtils;
import weka.core.Utils;
import weka.filters.Filter;
import weka.filters.unsupervised.attribute.Remove;
import java.io.ObjectStreamClass;
import java.io.Serializable;
import java.util.Enumeration;
import java.util.Vector;
/**
* A SplitEvaluator that produces results for a density based clusterer.
*
* -W classname <br>
* Specify the full class name of the clusterer to evaluate. <p>
*
* @author Mark Hall (mhall{[at]}pentaho{[dot]}org
* @version $Revision: 1.3 $
*/
public class DensityBasedClustererSplitEvaluator
implements SplitEvaluator,
OptionHandler,
AdditionalMeasureProducer,
RevisionHandler {
/** Remove the class column (if set) from the data */
protected boolean m_removeClassColumn = true;
/** The clusterer used for evaluation */
protected DensityBasedClusterer m_clusterer = new EM();
/** The names of any additional measures to look for in SplitEvaluators */
protected String [] m_additionalMeasures = null;
/** Array of booleans corresponding to the measures in m_AdditionalMeasures
indicating which of the AdditionalMeasures the current clusterer
can produce */
protected boolean [] m_doesProduce = null;
/** The number of additional measures that need to be filled in
after taking into account column constraints imposed by the final
destination for results */
protected int m_numberAdditionalMeasures = 0;
/** Holds the statistics for the most recent application of the clusterer */
protected String m_result = null;
/** The clusterer options (if any) */
protected String m_clustererOptions = "";
/** The clusterer version */
protected String m_clustererVersion = "";
/** The length of a key */
private static final int KEY_SIZE = 3;
/** The length of a result */
private static final int RESULT_SIZE = 6;
public DensityBasedClustererSplitEvaluator() {
updateOptions();
}
/**
* Returns a string describing this split evaluator
* @return a description of the split evaluator suitable for
* displaying in the explorer/experimenter gui
*/
public String globalInfo() {
return " A SplitEvaluator that produces results for a density based clusterer. ";
}
/**
* Returns an enumeration describing the available options.
*
* @return an enumeration of all the available options.
*/
public Enumeration listOptions() {
Vector newVector = new Vector(1);
newVector.addElement(new Option(
"\tThe full class name of the density based clusterer.\n"
+"\teg: weka.clusterers.EM",
"W", 1,
"-W <class name>"));
if ((m_clusterer != null) &&
(m_clusterer instanceof OptionHandler)) {
newVector.addElement(new Option(
"",
"", 0, "\nOptions specific to clusterer "
+ m_clusterer.getClass().getName() + ":"));
Enumeration enu = ((OptionHandler)m_clusterer).listOptions();
while (enu.hasMoreElements()) {
newVector.addElement(enu.nextElement());
}
}
return newVector.elements();
}
/**
* Parses a given list of options. Valid options are:<p>
*
* -W classname <br>
* Specify the full class name of the clusterer to evaluate. <p>
*
* All option after -- will be passed to the classifier.
*
* @param options the list of options as an array of strings
* @exception Exception if an option is not supported
*/
public void setOptions(String[] options) throws Exception {
String cName = Utils.getOption('W', options);
if (cName.length() == 0) {
throw new Exception("A clusterer must be specified with"
+ " the -W option.");
}
// Do it first without options, so if an exception is thrown during
// the option setting, listOptions will contain options for the actual
// Classifier.
setClusterer((DensityBasedClusterer)AbstractClusterer.forName(cName, null));
if (getClusterer() instanceof OptionHandler) {
((OptionHandler) getClusterer())
.setOptions(Utils.partitionOptions(options));
updateOptions();
}
}
/**
* Gets the current settings of the Classifier.
*
* @return an array of strings suitable for passing to setOptions
*/
public String [] getOptions() {
String [] clustererOptions = new String [0];
if ((m_clusterer != null) &&
(m_clusterer instanceof OptionHandler)) {
clustererOptions = ((OptionHandler)m_clusterer).getOptions();
}
String [] options = new String [clustererOptions.length + 3];
int current = 0;
if (getClusterer() != null) {
options[current++] = "-W";
options[current++] = getClusterer().getClass().getName();
}
options[current++] = "--";
System.arraycopy(clustererOptions, 0, options, current,
clustererOptions.length);
current += clustererOptions.length;
while (current < options.length) {
options[current++] = "";
}
return options;
}
/**
* Set a list of method names for additional measures to look for
* in Classifiers. This could contain many measures (of which only a
* subset may be produceable by the current Classifier) if an experiment
* is the type that iterates over a set of properties.
* @param additionalMeasures a list of method names
*/
public void setAdditionalMeasures(String [] additionalMeasures) {
// System.err.println("ClassifierSplitEvaluator: setting additional measures");
m_additionalMeasures = additionalMeasures;
// determine which (if any) of the additional measures this clusterer
// can produce
if (m_additionalMeasures != null && m_additionalMeasures.length > 0) {
m_doesProduce = new boolean [m_additionalMeasures.length];
if (m_clusterer instanceof AdditionalMeasureProducer) {
Enumeration en = ((AdditionalMeasureProducer)m_clusterer).
enumerateMeasures();
while (en.hasMoreElements()) {
String mname = (String)en.nextElement();
for (int j=0;j<m_additionalMeasures.length;j++) {
if (mname.compareToIgnoreCase(m_additionalMeasures[j]) == 0) {
m_doesProduce[j] = true;
}
}
}
}
} else {
m_doesProduce = null;
}
}
/**
* Returns an enumeration of any additional measure names that might be
* in the classifier
* @return an enumeration of the measure names
*/
public Enumeration enumerateMeasures() {
Vector newVector = new Vector();
if (m_clusterer instanceof AdditionalMeasureProducer) {
Enumeration en = ((AdditionalMeasureProducer)m_clusterer).
enumerateMeasures();
while (en.hasMoreElements()) {
String mname = (String)en.nextElement();
newVector.addElement(mname);
}
}
return newVector.elements();
}
/**
* Returns the value of the named measure
* @param measureName the name of the measure to query for its value
* @return the value of the named measure
* @exception IllegalArgumentException if the named measure is not supported
*/
public double getMeasure(String additionalMeasureName) {
if (m_clusterer instanceof AdditionalMeasureProducer) {
return ((AdditionalMeasureProducer)m_clusterer).
getMeasure(additionalMeasureName);
} else {
throw new IllegalArgumentException("DensityBasedClustererSplitEvaluator: "
+"Can't return value for : "+additionalMeasureName
+". "+m_clusterer.getClass().getName()+" "
+"is not an AdditionalMeasureProducer");
}
}
/**
* Gets the data types of each of the key columns produced for a single run.
* The number of key fields must be constant
* for a given SplitEvaluator.
*
* @return an array containing objects of the type of each key column. The
* objects should be Strings, or Doubles.
*/
public Object [] getKeyTypes() {
Object [] keyTypes = new Object[KEY_SIZE];
keyTypes[0] = "";
keyTypes[1] = "";
keyTypes[2] = "";
return keyTypes;
}
/**
* Gets the names of each of the key columns produced for a single run.
* The number of key fields must be constant
* for a given SplitEvaluator.
*
* @return an array containing the name of each key column
*/
public String [] getKeyNames() {
String [] keyNames = new String[KEY_SIZE];
keyNames[0] = "Scheme";
keyNames[1] = "Scheme_options";
keyNames[2] = "Scheme_version_ID";
return keyNames;
}
/**
* Gets the key describing the current SplitEvaluator. For example
* This may contain the name of the classifier used for classifier
* predictive evaluation. The number of key fields must be constant
* for a given SplitEvaluator.
*
* @return an array of objects containing the key.
*/
public Object [] getKey(){
Object [] key = new Object[KEY_SIZE];
key[0] = m_clusterer.getClass().getName();
key[1] = m_clustererOptions;
key[2] = m_clustererVersion;
return key;
}
/**
* Gets the data types of each of the result columns produced for a
* single run. The number of result fields must be constant
* for a given SplitEvaluator.
*
* @return an array containing objects of the type of each result column.
* The objects should be Strings, or Doubles.
*/
public Object [] getResultTypes() {
int addm = (m_additionalMeasures != null)
? m_additionalMeasures.length
: 0;
int overall_length = RESULT_SIZE+addm;
Object [] resultTypes = new Object[overall_length];
Double doub = new Double(0);
int current = 0;
// number of training and testing instances
resultTypes[current++] = doub;
resultTypes[current++] = doub;
// log liklihood
resultTypes[current++] = doub;
// number of clusters
resultTypes[current++] = doub;
// timing stats
resultTypes[current++] = doub;
resultTypes[current++] = doub;
// resultTypes[current++] = "";
// add any additional measures
for (int i=0;i<addm;i++) {
resultTypes[current++] = doub;
}
if (current != overall_length) {
throw new Error("ResultTypes didn't fit RESULT_SIZE");
}
return resultTypes;
}
/**
* Gets the names of each of the result columns produced for a single run.
* The number of result fields must be constant
* for a given SplitEvaluator.
*
* @return an array containing the name of each result column
*/
public String [] getResultNames() {
int addm = (m_additionalMeasures != null)
? m_additionalMeasures.length
: 0;
int overall_length = RESULT_SIZE+addm;
String [] resultNames = new String[overall_length];
int current = 0;
resultNames[current++] = "Number_of_training_instances";
resultNames[current++] = "Number_of_testing_instances";
// Basic performance stats
resultNames[current++] = "Log_likelihood";
resultNames[current++] = "Number_of_clusters";
// Timing stats
resultNames[current++] = "Time_training";
resultNames[current++] = "Time_testing";
// Classifier defined extras
// resultNames[current++] = "Summary";
// add any additional measures
for (int i=0;i<addm;i++) {
resultNames[current++] = m_additionalMeasures[i];
}
if (current != overall_length) {
throw new Error("ResultNames didn't fit RESULT_SIZE");
}
return resultNames;
}
/**
* Gets the results for the supplied train and test datasets.
*
* @param train the training Instances.
* @param test the testing Instances.
* @return the results stored in an array. The objects stored in
* the array may be Strings, Doubles, or null (for the missing value).
* @exception Exception if a problem occurs while getting the results
*/
public Object [] getResult(Instances train, Instances test)
throws Exception {
if (m_clusterer == null) {
throw new Exception("No clusterer has been specified");
}
int addm = (m_additionalMeasures != null)
? m_additionalMeasures.length
: 0;
int overall_length = RESULT_SIZE+addm;
if (m_removeClassColumn && train.classIndex() != -1) {
// remove the class column from the training and testing data
Remove r = new Remove();
r.setAttributeIndicesArray(new int [] {train.classIndex()});
r.setInvertSelection(false);
r.setInputFormat(train);
train = Filter.useFilter(train, r);
test = Filter.useFilter(test, r);
}
train.setClassIndex(-1);
test.setClassIndex(-1);
ClusterEvaluation eval = new ClusterEvaluation();
Object [] result = new Object[overall_length];
long trainTimeStart = System.currentTimeMillis();
m_clusterer.buildClusterer(train);
double numClusters = m_clusterer.numberOfClusters();
eval.setClusterer(m_clusterer);
long trainTimeElapsed = System.currentTimeMillis() - trainTimeStart;
long testTimeStart = System.currentTimeMillis();
eval.evaluateClusterer(test);
long testTimeElapsed = System.currentTimeMillis() - testTimeStart;
// m_result = eval.toSummaryString();
// The results stored are all per instance -- can be multiplied by the
// number of instances to get absolute numbers
int current = 0;
result[current++] = new Double(train.numInstances());
result[current++] = new Double(test.numInstances());
result[current++] = new Double(eval.getLogLikelihood());
result[current++] = new Double(numClusters);
// Timing stats
result[current++] = new Double(trainTimeElapsed / 1000.0);
result[current++] = new Double(testTimeElapsed / 1000.0);
for (int i=0;i<addm;i++) {
if (m_doesProduce[i]) {
try {
double dv = ((AdditionalMeasureProducer)m_clusterer).
getMeasure(m_additionalMeasures[i]);
Double value = new Double(dv);
result[current++] = value;
} catch (Exception ex) {
System.err.println(ex);
}
} else {
result[current++] = null;
}
}
if (current != overall_length) {
throw new Error("Results didn't fit RESULT_SIZE");
}
return result;
}
/**
* Returns the tip text for this property
* @return tip text for this property suitable for
* displaying in the explorer/experimenter gui
*/
public String removeClassColumnTipText() {
return "Remove the class column (if set) from the data.";
}
/**
* Set whether the class column should be removed from the data.
*
* @param r true if the class column is to be removed.
*/
public void setRemoveClassColumn(boolean r) {
m_removeClassColumn = r;
}
/**
* Get whether the class column is to be removed.
*
* @return true if the class column is to be removed.
*/
public boolean getRemoveClassColumn() {
return m_removeClassColumn;
}
/**
* Returns the tip text for this property
* @return tip text for this property suitable for
* displaying in the explorer/experimenter gui
*/
public String clustererTipText() {
return "The density based clusterer to use.";
}
/**
* Get the value of clusterer
*
* @return Value of clusterer.
*/
public DensityBasedClusterer getClusterer() {
return m_clusterer;
}
/**
* Sets the clusterer.
*
* @param newClassifier the new clusterer to use.
*/
public void setClusterer(DensityBasedClusterer newClusterer) {
m_clusterer = newClusterer;
updateOptions();
}
protected void updateOptions() {
if (m_clusterer instanceof OptionHandler) {
m_clustererOptions = Utils.joinOptions(((OptionHandler)m_clusterer)
.getOptions());
} else {
m_clustererOptions = "";
}
if (m_clusterer instanceof Serializable) {
ObjectStreamClass obs = ObjectStreamClass.lookup(m_clusterer
.getClass());
m_clustererVersion = "" + obs.getSerialVersionUID();
} else {
m_clustererVersion = "";
}
}
/**
* Set the Clusterer to use, given it's class name. A new clusterer will be
* instantiated.
*
* @param newClusterer the Classifier class name.
* @exception Exception if the class name is invalid.
*/
public void setClustererName(String newClustererName) throws Exception {
try {
setClusterer((DensityBasedClusterer)Class.forName(newClustererName)
.newInstance());
} catch (Exception ex) {
throw new Exception("Can't find Clusterer with class name: "
+ newClustererName);
}
}
/**
* Gets the raw output from the classifier
* @return the raw output from the classifier
*/
public String getRawResultOutput() {
StringBuffer result = new StringBuffer();
if (m_clusterer == null) {
return "<null> clusterer";
}
result.append(toString());
result.append("Clustering model: \n"+m_clusterer.toString()+'\n');
// append the performance statistics
if (m_result != null) {
// result.append(m_result);
if (m_doesProduce != null) {
for (int i=0;i<m_doesProduce.length;i++) {
if (m_doesProduce[i]) {
try {
double dv = ((AdditionalMeasureProducer)m_clusterer).
getMeasure(m_additionalMeasures[i]);
Double value = new Double(dv);
result.append(m_additionalMeasures[i]+" : "+value+'\n');
} catch (Exception ex) {
System.err.println(ex);
}
}
}
}
}
return result.toString();
}
/**
* Returns a text description of the split evaluator.
*
* @return a text description of the split evaluator.
*/
public String toString() {
String result = "DensityBasedClustererSplitEvaluator: ";
if (m_clusterer == null) {
return result + "<null> clusterer";
}
return result + m_clusterer.getClass().getName() + " "
+ m_clustererOptions + "(version " + m_clustererVersion + ")";
}
/**
* Returns the revision string.
*
* @return the revision
*/
public String getRevision() {
return RevisionUtils.extract("$Revision: 1.3 $");
}
}
The table below shows all metrics for DensityBasedClustererSplitEvaluator.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 68.00 | Number of blocks | |
| BLOCK_COMMENT | 20.00 | Number of block comment lines | |
| COMMENTS | 209.00 | Comment lines | |
| COMMENT_DENSITY | 0.76 | Comment density | |
| COMPARISONS | 35.00 | Number of comparison operators | |
| CYCLOMATIC | 67.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 36.00 | Comments in declarations | |
| DOC_COMMENT | 165.00 | Number of javadoc comment lines | |
| ELOC | 276.00 | Effective lines of code | |
| EXEC_COMMENTS | 18.00 | Comments in executable code | |
| EXITS | 53.00 | Procedure exits | |
| FUNCTIONS | 25.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 79.02 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 50.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 1.00 | 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 | 1.00 | 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 | 3.00 | 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 | 2.00 | 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 | 2.00 | 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 | 0.00 | 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 | 2.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 3.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 0.00 | 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 | 0.00 | 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 | 2.00 | 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 | 0.00 | 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 | 0.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 111.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 3.00 | 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 | 3.00 | 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 | 0.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 1.00 | 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 | 1.00 | 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 | 0.00 | 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 | 2.00 | JAVA0267 Use of System.err | |
| JAVA0269 | 0.00 | JAVA0269 Contents of StringBuffer never used | |
| JAVA0270 | 0.00 | 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 | 636.00 | Number of lines in the source file | |
| LINE_COMMENT | 24.00 | Number of line comments | |
| LOC | 337.00 | Lines of code | |
| LOGICAL_LINES | 181.00 | Number of statements | |
| LOOPS | 9.00 | Number of loops | |
| NEST_DEPTH | 6.00 | Maximum nesting depth | |
| OPERANDS | 727.00 | Number of operands | |
| OPERATORS | 1438.00 | Number of operators | |
| PARAMS | 8.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 2165.00 | Halstead program length | |
| PROGRAM_VOCAB | 280.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 42.00 | Number of return points from functions | |
| SIZE | 19214.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 230.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 50.00 | Number of unique operators | |
| WHITESPACE | 90.00 | Number of whitespace lines | |