CSVInputAdapter.java
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|---|---|---|
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com.espertech.esperio.csv |
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Esper |
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 | |
|---|---|---|
| JAVA0075 | JAVA0075 Method parameter hides field |  |
| EXITS | Procedure exits | |
| JAVA0144 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| JAVA0130 | JAVA0130 Non-static method does not use instance fields | |
| RETURNS | Number of return points from functions | |
| JAVA0179 | JAVA0179 Local variable hides visible field | |
| BLOCKS | Number of blocks | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| UNIQUE_OPERANDS | Number of unique operands | |
| LOC | Lines of code | |
| UNIQUE_OPERATORS | Number of unique operators | |
| CYCLOMATIC | Cyclomatic complexity | |
| COMPARISONS | Number of comparison operators | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| OPERATORS | Number of operators | |
| PROGRAM_LENGTH | Halstead program length | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| OPERANDS | Number of operands | |
| EXEC_COMMENTS | Comments in executable code | |
| LINE_COMMENT | Number of line comments | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0173 | JAVA0173 Unused method parameter | |
| LOGICAL_LINES | Number of statements | |
| JAVA0100 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| COMMENTS | Comment lines | |
| DOC_COMMENT | Number of javadoc comment lines | |
| LOOPS | Number of loops | |
| NEST_DEPTH | Maximum nesting depth | |
package com.espertech.esperio.csv;
import com.espertech.esper.client.EPException;
import com.espertech.esper.client.EPServiceProvider;
import com.espertech.esper.core.EPServiceProviderSPI;
import com.espertech.esper.event.EventAdapterService;
import com.espertech.esper.event.EventType;
import com.espertech.esperio.*;
import com.espertech.esper.util.JavaClassHelper;
import net.sf.cglib.reflect.FastClass;
import net.sf.cglib.reflect.FastConstructor;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.io.EOFException;
import java.lang.reflect.InvocationTargetException;
import java.util.*;
/**
* An event Adapter that uses a CSV file for a source.
*/
public class CSVInputAdapter extends AbstractCoordinatedAdapter implements InputAdapter
{
private static final Log log = LogFactory.getLog(CSVInputAdapter.class);
private Integer eventsPerSec;
private CSVReader reader;
private Map<String, FastConstructor>propertyConstructors;
private String[] propertyOrder;
private CSVInputAdapterSpec adapterSpec;
private Map<String, Class> propertyTypes;
private String eventTypeAlias;
private long lastTimestamp = 0;
private long totalDelay;
boolean atEOF = false;
String[] firstRow;
/**
* Ctor.
* @param epService - provides the engine runtime and services
* @param spec - the parameters for this adapter
*/
public CSVInputAdapter(EPServiceProvider epService, CSVInputAdapterSpec spec)
{
super(epService, spec.isUsingEngineThread());
adapterSpec = spec;
eventTypeAlias = adapterSpec.getEventTypeAlias();
eventsPerSec = spec.getEventsPerSec();
if(epService != null)
{
finishInitialization(epService, spec);
}
}
/**
* Ctor.
* @param epService - provides the engine runtime and services
* @param adapterInputSource - the source of the CSV file
* @param eventTypeAlias - the alias of the Map event to create from the CSV data
*/
public CSVInputAdapter(EPServiceProvider epService, AdapterInputSource adapterInputSource, String eventTypeAlias)
{
this(epService, new CSVInputAdapterSpec(adapterInputSource, eventTypeAlias));
}
/**
* Ctor for adapters that will be passed to an AdapterCoordinator.
* @param adapterSpec contains parameters that specify the behavior of the input adapter
*/
public CSVInputAdapter(CSVInputAdapterSpec adapterSpec)
{
this(null, adapterSpec);
}
/**
* Ctor for adapters that will be passed to an AdapterCoordinator.
* @param adapterInputSource - the parameters for this adapter
* @param eventTypeAlias - the event type alias name that the input adapter generates events for
*/
public CSVInputAdapter(AdapterInputSource adapterInputSource, String eventTypeAlias)
{
this(null, adapterInputSource, eventTypeAlias);
}
/* (non-Javadoc)
* @see com.espertech.esperio.ReadableAdapter#read()
*/
public SendableEvent read() throws EPException
{
if(stateManager.getState() == AdapterState.DESTROYED || atEOF)
{
return null;
}
try
{
if(eventsToSend.isEmpty())
{
return new SendableMapEvent(newMapEvent(), eventTypeAlias, totalDelay, scheduleSlot);
}
else
{
SendableEvent event = eventsToSend.first();
eventsToSend.remove(event);
return event;
}
}
catch (EOFException e)
{
log.debug(".read reached end of CSV file");
atEOF = true;
if(stateManager.getState() == AdapterState.STARTED)
{
stop();
}
else
{
destroy();
}
return null;
}
}
/* (non-Javadoc)
* @see com.espertech.esperio.AbstractCoordinatedAdapter#setEPService(com.espertech.esper.client.EPServiceProvider)
*/
@Override
public void setEPService(EPServiceProvider epService)
{
super.setEPService(epService);
finishInitialization(epService, adapterSpec);
}
/**
* Close the CSVReader.
*/
protected void close()
{
reader.close();
}
/**
* Remove the first member of eventsToSend. If there is
* another record in the CSV file, insert the event created
* from it into eventsToSend.
*/
protected void replaceFirstEventToSend()
{
eventsToSend.remove(eventsToSend.first());
SendableEvent event = read();
if(event != null)
{
eventsToSend.add(event);
}
}
/**
* Reset all the changeable state of this ReadableAdapter, as if it were just created.
*/
protected void reset()
{
lastTimestamp = 0;
totalDelay = 0;
atEOF = false;
if(reader.isResettable())
{
reader.reset();
}
}
private void finishInitialization(EPServiceProvider epService, CSVInputAdapterSpec spec)
{
assertValidParameters(epService, spec);
EPServiceProviderSPI spi = (EPServiceProviderSPI)epService;
scheduleSlot = spi.getSchedulingService().allocateBucket().allocateSlot();
reader = new CSVReader(spec.getAdapterInputSource());
reader.setLooping(spec.isLooping());
String[] firstRow = getFirstRow();
Map<String, Class> givenPropertyTypes = constructPropertyTypes(spec.getEventTypeAlias(), spec.getPropertyTypes(), spi.getEventAdapterService());
propertyOrder = spec.getPropertyOrder() != null ?
spec.getPropertyOrder() :
CSVPropertyOrderHelper.resolvePropertyOrder(firstRow, givenPropertyTypes);
reader.setIsUsingTitleRow(isUsingTitleRow(firstRow, propertyOrder));
if(!isUsingTitleRow(firstRow, propertyOrder))
{
this.firstRow = firstRow;
}
propertyTypes = resolvePropertyTypes(givenPropertyTypes);
if(givenPropertyTypes == null)
{
spi.getEventAdapterService().addMapType(eventTypeAlias, propertyTypes);
}
this.propertyConstructors = createPropertyConstructors(propertyTypes);
}
private Map<String, Object> newMapEvent() throws EOFException
{
String[] row = firstRow != null ? firstRow : reader.getNextRecord();
firstRow = null;
updateTotalDelay(row, reader.getAndClearIsReset());
return createMapFromRow(row);
}
private Map<String, FastConstructor> createPropertyConstructors(Map<String, Class> propertyTypes)
{
Map<String, FastConstructor> constructors = new HashMap<String, FastConstructor>();
Class[] parameterTypes = new Class[] { String.class };
for(String property : propertyTypes.keySet())
{
log.debug(".createPropertyConstructors property==" + property + ", type==" + propertyTypes.get(property ));
FastClass fastClass = FastClass.create(JavaClassHelper.getBoxedType(propertyTypes.get(property)));
FastConstructor constructor = fastClass.getConstructor(parameterTypes);
constructors.put(property, constructor);
}
return constructors;
}
private Map<String, Object> createMapFromRow(String[] row)
{
Map<String, Object> map = new HashMap<String, Object>();
int count = 0;
try
{
for(String property : propertyOrder)
{
// Skip properties that are in the title row but not
// part of the map to send
if(propertyTypes != null && !propertyTypes.containsKey(property))
{
count++;
continue;
}
Object[] parameters = new Object[] { row[count++] };
Object value = propertyConstructors.get(property).newInstance(parameters);
map.put(property, value);
}
}
catch (InvocationTargetException e)
{
throw new EPException(e);
}
return map;
}
private Map<String, Class> constructPropertyTypes(String eventTypeAlias, Map<String, Class> propertyTypesGiven, EventAdapterService eventAdapterService)
{
Map<String, Class> propertyTypes = new HashMap<String, Class>();
EventType eventType = eventAdapterService.getExistsTypeByAlias(eventTypeAlias);
if(eventType == null)
{
if(propertyTypesGiven != null)
{
eventAdapterService.addMapType(eventTypeAlias, propertyTypesGiven);
}
return propertyTypesGiven;
}
if(!eventType.getUnderlyingType().equals(Map.class))
{
throw new EPException("Alias " + eventTypeAlias + " does not correspond to a map event");
}
if(propertyTypesGiven != null && eventType.getPropertyNames().length != propertyTypesGiven.size())
{
throw new EPException("Event type " + eventTypeAlias + " has already been declared with a different number of parameters");
}
for(String property : eventType.getPropertyNames())
{
Class type = eventType.getPropertyType(property);
if(propertyTypesGiven != null && propertyTypesGiven.get(property) == null)
{
throw new EPException("Event type " + eventTypeAlias + "has already been declared with different parameters");
}
if(propertyTypesGiven != null && !propertyTypesGiven.get(property).equals(type))
{
throw new EPException("Event type " + eventTypeAlias + "has already been declared with a different type for property " + property);
}
propertyTypes.put(property, type);
}
return propertyTypes;
}
private void updateTotalDelay(String[] row, boolean isFirstRow)
{
if(eventsPerSec != null)
{
int msecPerEvent = 1000/eventsPerSec;
totalDelay += msecPerEvent;
}
else if(adapterSpec.getTimestampColumn() != null)
{
Long timestamp = resolveTimestamp(row);
if(timestamp == null)
{
throw new EPException("Couldn't resolve the timestamp for record " + Arrays.asList(row));
}
else if(timestamp < 0)
{
throw new EPException("Encountered negative timestamp for CSV record : " + Arrays.asList(row));
}
else
{
long timestampDifference = 0;
if(timestamp < lastTimestamp)
{
if(!isFirstRow)
{
throw new EPException("Subsequent timestamp " + timestamp + " is smaller than previous timestamp " + lastTimestamp);
}
else
{
timestampDifference = timestamp;
}
}
else
{
timestampDifference = timestamp - lastTimestamp;
}
lastTimestamp = timestamp;
totalDelay += timestampDifference;
}
}
}
private Long resolveTimestamp(String[] row)
{
int timestampIndex = getTimestampIndex(row);
if(timestampIndex != -1)
{
return Long.parseLong(row[timestampIndex]);
}
else
{
return null;
}
}
private int getTimestampIndex(String[] row)
{
if(adapterSpec.getTimestampColumn() != null)
{
for(int i = 0; i < propertyOrder.length; i++)
{
if(propertyOrder[i].equals(adapterSpec.getTimestampColumn()))
{
return i;
}
}
}
return -1;
}
private Map<String, Class> resolvePropertyTypes(Map<String, Class> propertyTypes)
{
if(propertyTypes != null)
{
return propertyTypes;
}
Map<String, Class> result = new HashMap<String, Class>();
for(int i = 0; i < propertyOrder.length; i++)
{
String name = propertyOrder[i];
Class type = String.class;
if (name.contains(" ")) {
String[] typeAndName = name.split("\\s");
try {
name = typeAndName[1];
type = JavaClassHelper.getClassForName(JavaClassHelper.getBoxedClassName(typeAndName[0]));
propertyOrder[i] = name;
} catch (Throwable e) {
log.warn("Unable to use given type for property, will default to String: " + propertyOrder[i], e);
}
}
result.put(name, type);
}
return result;
}
private boolean isUsingTitleRow(String[] firstRow, String[] propertyOrder)
{
if(firstRow == null)
{
return false;
}
Set<String> firstRowSet = new HashSet<String>(Arrays.asList(firstRow));
Set<String> propertyOrderSet = new HashSet<String>(Arrays.asList(propertyOrder));
return firstRowSet.equals(propertyOrderSet);
}
private String[] getFirstRow()
{
String[] firstRow;
try
{
firstRow = reader.getNextRecord();
}
catch (EOFException e)
{
atEOF = true;
firstRow = null;
}
return firstRow;
}
private void assertValidEventsPerSec(Integer eventsPerSec)
{
if(eventsPerSec != null)
{
if(eventsPerSec < 1 || eventsPerSec > 1000)
{
throw new IllegalArgumentException("Illegal value of eventsPerSec:" + eventsPerSec);
}
}
}
private void assertValidParameters(EPServiceProvider epService, CSVInputAdapterSpec adapterSpec)
{
if(!(epService instanceof EPServiceProviderSPI))
{
throw new IllegalArgumentException("Invalid type of EPServiceProvider");
}
if(adapterSpec.getEventTypeAlias() == null)
{
throw new NullPointerException("eventTypeAlias cannot be null");
}
if(adapterSpec.getAdapterInputSource() == null)
{
throw new NullPointerException("adapterInputSource cannot be null");
}
assertValidEventsPerSec(adapterSpec.getEventsPerSec());
if(adapterSpec.isLooping() && !adapterSpec.getAdapterInputSource().isResettable())
{
throw new EPException("Cannot loop on a non-resettable input source");
}
}
}
The table below shows all metrics for CSVInputAdapter.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 74.00 | Number of blocks | |
| BLOCK_COMMENT | 6.00 | Number of block comment lines | |
| COMMENTS | 42.00 | Comment lines | |
| COMMENT_DENSITY | 0.19 | Comment density | |
| COMPARISONS | 47.00 | Number of comparison operators | |
| CYCLOMATIC | 70.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 10.00 | Comments in declarations | |
| DOC_COMMENT | 34.00 | Number of javadoc comment lines | |
| ELOC | 220.00 | Effective lines of code | |
| EXEC_COMMENTS | 1.00 | Comments in executable code | |
| EXITS | 72.00 | Procedure exits | |
| FUNCTIONS | 22.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 77.70 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 80.00 | 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 | 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 | 7.00 | 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 | 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 | 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 | 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 | 1.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 4.00 | 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 | 5.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 803.00 | 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 | 1.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 1.00 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0171 | 0.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 1.00 | 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 | 1.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 3.00 | 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 | 458.00 | Number of lines in the source file | |
| LINE_COMMENT | 2.00 | Number of line comments | |
| LOC | 366.00 | Lines of code | |
| LOGICAL_LINES | 145.00 | Number of statements | |
| LOOPS | 2.00 | Number of loops | |
| NEST_DEPTH | 5.00 | Maximum nesting depth | |
| OPERANDS | 691.00 | Number of operands | |
| OPERATORS | 1345.00 | Number of operators | |
| PARAMS | 26.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 2036.00 | Halstead program length | |
| PROGRAM_VOCAB | 305.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 54.00 | Number of return points from functions | |
| SIZE | 13025.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 249.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 56.00 | Number of unique operators | |
| WHITESPACE | 50.00 | Number of whitespace lines | |