ValueServer.java
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|---|---|---|
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org.apache.commons.math.random |
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Commons Math |
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 |  |
| DOC_COMMENT | Number of javadoc comment lines | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| COMMENTS | Comment lines | |
| RETURNS | Number of return points from functions | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| EXEC_COMMENTS | Comments in executable code | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| LINE_COMMENT | Number of line comments | |
| COMPARISONS | Number of comparison operators | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| OPERANDS | Number of operands | |
| ELOC | Effective lines of code | |
| WHITESPACE | Number of whitespace lines | |
| PROGRAM_LENGTH | Halstead program length | |
| LOOPS | Number of loops | |
| LOC | Lines of code | |
| PARAMS | Number of formal parameter declarations | |
| LOGICAL_LINES | Number of statements | |
| OPERATORS | Number of operators | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
| UNIQUE_OPERATORS | Number of unique operators | |
/*
* 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.math.random;
import java.io.BufferedReader;
import java.io.EOFException;
import java.io.InputStreamReader;
import java.io.IOException;
import java.net.URL;
import java.net.MalformedURLException;
/**
* Generates values for use in simulation applications.
* <p>
* How values are generated is determined by the <code>mode</code>
* property.</p>
* <p>
* Supported <code>mode</code> values are: <ul>
* <li> DIGEST_MODE -- uses an empirical distribution </li>
* <li> REPLAY_MODE -- replays data from <code>valuesFileURL</code></li>
* <li> UNIFORM_MODE -- generates uniformly distributed random values with
* mean = <code>mu</code> </li>
* <li> EXPONENTIAL_MODE -- generates exponentially distributed random values
* with mean = <code>mu</code></li>
* <li> GAUSSIAN_MODE -- generates Gaussian distributed random values with
* mean = <code>mu</code> and
* standard deviation = <code>sigma</code></li>
* <li> CONSTANT_MODE -- returns <code>mu</code> every time.</li></ul></p>
*
* @version $Revision: 617850 $ $Date: 2008-02-02 13:01:29 -0500 (Sat, 02 Feb 2008) $
*
*/
public class ValueServer {
/** mode determines how values are generated */
private int mode = 5;
/** URI to raw data values */
private URL valuesFileURL = null;
/** Mean for use with non-data-driven modes */
private double mu = 0.0;
/** Standard deviation for use with GAUSSIAN_MODE */
private double sigma = 0.0;
/** Empirical probability distribution for use with DIGEST_MODE */
private EmpiricalDistribution empiricalDistribution = null;
/** file pointer for REPLAY_MODE */
private BufferedReader filePointer = null;
/** RandomDataImpl to use for random data generation */
private RandomData randomData = new RandomDataImpl();
// Data generation modes ======================================
/** Use empirical distribution */
public static final int DIGEST_MODE = 0;
/** Replay data from valuesFilePath */
public static final int REPLAY_MODE = 1;
/** Uniform random deviates with mean = mu */
public static final int UNIFORM_MODE = 2;
/** Exponential random deviates with mean = mu */
public static final int EXPONENTIAL_MODE = 3;
/** Gaussian random deviates with mean = mu, std dev = sigma */
public static final int GAUSSIAN_MODE = 4;
/** Always return mu */
public static final int CONSTANT_MODE = 5;
/** Creates new ValueServer */
public ValueServer() {
}
/**
* Returns the next generated value, generated according
* to the mode value (see MODE constants).
*
* @return generated value
* @throws IOException in REPLAY_MODE if a file I/O error occurs
*/
public double getNext() throws IOException {
switch (mode) {
case DIGEST_MODE: return getNextDigest();
case REPLAY_MODE: return getNextReplay();
case UNIFORM_MODE: return getNextUniform();
case EXPONENTIAL_MODE: return getNextExponential();
case GAUSSIAN_MODE: return getNextGaussian();
case CONSTANT_MODE: return mu;
default: throw new IllegalStateException
("Bad mode: " + mode);
}
}
/**
* Fills the input array with values generated using getNext() repeatedly.
*
* @param values array to be filled
* @throws IOException in REPLAY_MODE if a file I/O error occurs
*/
public void fill(double[] values) throws IOException {
for (int i = 0; i < values.length; i++) {
values[i] = getNext();
}
}
/**
* Returns an array of length <code>length</code> with values generated
* using getNext() repeatedly.
*
* @param length length of output array
* @return array of generated values
* @throws IOException in REPLAY_MODE if a file I/O error occurs
*/
public double[] fill(int length) throws IOException {
double[] out = new double[length];
for (int i = 0; i < length; i++) {
out[i] = getNext();
}
return out;
}
/**
* Computes the empirical distribution using values from the file
* in <code>valuesFileURL</code>, using the default number of bins.
* <p>
* <code>valuesFileURL</code> must exist and be
* readable by *this at runtime.</p>
* <p>
* This method must be called before using <code>getNext()</code>
* with <code>mode = DIGEST_MODE</code></p>
*
* @throws IOException if an I/O error occurs reading the input file
*/
public void computeDistribution() throws IOException {
empiricalDistribution = new EmpiricalDistributionImpl();
empiricalDistribution.load(valuesFileURL);
}
/**
* Computes the empirical distribution using values from the file
* in <code>valuesFileURL</code> and <code>binCount</code> bins.
* <p>
* <code>valuesFileURL</code> must exist and be readable by this process
* at runtime.</p>
* <p>
* This method must be called before using <code>getNext()</code>
* with <code>mode = DIGEST_MODE</code></p>
*
* @param binCount the number of bins used in computing the empirical
* distribution
* @throws IOException if an error occurs reading the input file
*/
public void computeDistribution(int binCount)
throws IOException {
empiricalDistribution = new EmpiricalDistributionImpl(binCount);
empiricalDistribution.load(valuesFileURL);
mu = empiricalDistribution.getSampleStats().getMean();
sigma = empiricalDistribution.getSampleStats().getStandardDeviation();
}
/** Getter for property mode.
* @return Value of property mode.
*/
public int getMode() {
return mode;
}
/** Setter for property mode.
* @param mode New value of property mode.
*/
public void setMode(int mode) {
this.mode = mode;
}
/**
* Getter for <code>valuesFileURL<code>
* @return Value of property valuesFileURL.
*/
public URL getValuesFileURL() {
return valuesFileURL;
}
/**
* Sets the <code>valuesFileURL</code> using a string URL representation
* @param url String representation for new valuesFileURL.
* @throws MalformedURLException if url is not well formed
*/
public void setValuesFileURL(String url) throws MalformedURLException {
this.valuesFileURL = new URL(url);
}
/**
* Sets the <code>valuesFileURL</code>
* @param url New value of property valuesFileURL.
*/
public void setValuesFileURL(URL url) {
this.valuesFileURL = url;
}
/** Getter for property empiricalDistribution.
* @return Value of property empiricalDistribution.
*/
public EmpiricalDistribution getEmpiricalDistribution() {
return empiricalDistribution;
}
/**
* Resets REPLAY_MODE file pointer to the beginning of the <code>valuesFileURL</code>.
*
* @throws IOException if an error occurs opening the file
*/
public void resetReplayFile() throws IOException {
if (filePointer != null) {
try {
filePointer.close();
filePointer = null;
} catch (IOException ex) {
// ignore
}
}
filePointer = new BufferedReader(new InputStreamReader(valuesFileURL.openStream()));
}
/**
* Closes <code>valuesFileURL</code> after use in REPLAY_MODE.
*
* @throws IOException if an error occurs closing the file
*/
public void closeReplayFile() throws IOException {
if (filePointer != null) {
filePointer.close();
filePointer = null;
}
}
/** Getter for property mu.
* @return Value of property mu.
*/
public double getMu() {
return mu;
}
/** Setter for property mu.
* @param mu New value of property mu.
*/
public void setMu(double mu) {
this.mu = mu;
}
/** Getter for property sigma.
* @return Value of property sigma.
*/
public double getSigma() {
return sigma;
}
/** Setter for property sigma.
* @param sigma New value of property sigma.
*/
public void setSigma(double sigma) {
this.sigma = sigma;
}
//------------- private methods ---------------------------------
/**
* Gets a random value in DIGEST_MODE.
* <p>
* <strong>Preconditions</strong>: <ul>
* <li>Before this method is called, <code>computeDistribution()</code>
* must have completed successfully; otherwise an
* <code>IllegalStateException</code> will be thrown</li></ul></p>
*
* @return next random value from the empirical distribution digest
*/
private double getNextDigest() {
if ((empiricalDistribution == null) ||
(empiricalDistribution.getBinStats().size() == 0)) {
throw new IllegalStateException("Digest not initialized");
}
return empiricalDistribution.getNextValue();
}
/**
* Gets next sequential value from the <code>valuesFileURL</code>.
* <p>
* Throws an IOException if the read fails.</p>
* <p>
* This method will open the <code>valuesFileURL</code> if there is no
* replay file open.</p>
* <p>
* The <code>valuesFileURL</code> will be closed and reopened to wrap around
* from EOF to BOF if EOF is encountered. EOFException (which is a kind of
* IOException) may still be thrown if the <code>valuesFileURL</code> is
* empty.</p>
*
* @return next value from the replay file
* @throws IOException if there is a problem reading from the file
* @throws NumberFormatException if an invalid numeric string is
* encountered in the file
*/
private double getNextReplay() throws IOException {
String str = null;
if (filePointer == null) {
resetReplayFile();
}
if ((str = filePointer.readLine()) == null) {
// we have probably reached end of file, wrap around from EOF to BOF
closeReplayFile();
resetReplayFile();
if ((str = filePointer.readLine()) == null) {
throw new EOFException("URL " + valuesFileURL + " contains no data");
}
}
return Double.valueOf(str).doubleValue();
}
/**
* Gets a uniformly distributed random value with mean = mu.
*
* @return random uniform value
*/
private double getNextUniform() {
return randomData.nextUniform(0, 2 * mu);
}
/**
* Gets an exponentially distributed random value with mean = mu.
*
* @return random exponential value
*/
private double getNextExponential() {
return randomData.nextExponential(mu);
}
/**
* Gets a Gaussian distributed random value with mean = mu
* and standard deviation = sigma.
*
* @return random Gaussian value
*/
private double getNextGaussian() {
return randomData.nextGaussian(mu, sigma);
}
/**
* Construct a ValueServer instance using a RandomData as its source
* of random data.
*
* @param randomData the RandomData instance used to source random data
* @since 1.1
*/
public ValueServer(RandomData randomData) {
super();
this.randomData = randomData;
}
}
The table below shows all metrics for ValueServer.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 34.00 | Number of blocks | |
| BLOCK_COMMENT | 16.00 | Number of block comment lines | |
| COMMENTS | 197.00 | Comment lines | |
| COMMENT_DENSITY | 1.89 | Comment density | |
| COMPARISONS | 9.00 | Number of comparison operators | |
| CYCLOMATIC | 41.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 41.00 | Comments in declarations | |
| DOC_COMMENT | 177.00 | Number of javadoc comment lines | |
| ELOC | 104.00 | Effective lines of code | |
| EXEC_COMMENTS | 2.00 | Comments in executable code | |
| EXITS | 23.00 | Procedure exits | |
| FUNCTIONS | 24.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 47.67 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 57.00 | 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 | 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 | 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 | 1.00 | 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 | 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 | 0.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | 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 | 1.00 | 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 | 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 | 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 | 0.00 | 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 | 0.00 | 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 | 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 | 0.00 | 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 | 376.00 | Number of lines in the source file | |
| LINE_COMMENT | 4.00 | Number of line comments | |
| LOC | 139.00 | Lines of code | |
| LOGICAL_LINES | 69.00 | Number of statements | |
| LOOPS | 2.00 | Number of loops | |
| NEST_DEPTH | 3.00 | Maximum nesting depth | |
| OPERANDS | 227.00 | Number of operands | |
| OPERATORS | 581.00 | Number of operators | |
| PARAMS | 9.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 808.00 | Halstead program length | |
| PROGRAM_VOCAB | 142.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 48.00 | Number of return points from functions | |
| SIZE | 12424.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 100.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 42.00 | Number of unique operators | |
| WHITESPACE | 40.00 | Number of whitespace lines | |