PluginRegistry.java
| Index Score | ||
|---|---|---|
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artofillusion |
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Art of Illusion |
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 | |
|---|---|---|
| JAVA0034 | JAVA0034 Missing braces in if statement |  |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| EXITS | Procedure exits | |
| UNIQUE_OPERANDS | Number of unique operands | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| SIZE | Size of the file in bytes | |
| JAVA0096 | JAVA0096 Field in nested class hides outer field | |
| JAVA0267 | JAVA0267 Use of System.err | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| OPERANDS | Number of operands | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0071 | JAVA0071 Strings compared with == | |
| DECL_COMMENTS | Comments in declarations | |
| PROGRAM_LENGTH | Halstead program length | |
| OPERATORS | Number of operators | |
| LOC | Lines of code | |
| LOGICAL_LINES | Number of statements | |
| LOOPS | Number of loops | |
| LINES | Number of lines in the source file | |
| JAVA0265 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0166 | JAVA0166 Generic exception caught | |
| JAVA0144 | JAVA0144 Line exceeds maximum M characters | |
| RETURNS | Number of return points from functions | |
| ELOC | Effective lines of code | |
| CYCLOMATIC | Cyclomatic complexity | |
| DOC_COMMENT | Number of javadoc comment lines | |
| BLOCKS | Number of blocks | |
| JAVA0049 | JAVA0049 Nested block at depth N (maximum: M) | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| JAVA0163 | JAVA0163 Empty statement | |
| NEST_DEPTH | Maximum nesting depth | |
| JAVA0010 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0137 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| UNIQUE_OPERATORS | Number of unique operators | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0035 | JAVA0035 Missing braces in for statement | |
| COMMENTS | Comment lines | |
| COMPARISONS | Number of comparison operators | |
| JAVA0254 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| FUNCTIONS | Number of function declarations | |
| JAVA0003 | JAVA0003 Minimize use of on-demand (.*) imports | |
| PARAMS | Number of formal parameter declarations | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/* Copyright (C) 2007 by Peter Eastman
Some parts copyright (C) 2006 by Nik Trevallyn-Jones
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. */
package artofillusion;
import buoy.widget.*;
import java.io.*;
import java.util.zip.*;
import java.util.*;
import java.net.*;
import java.lang.reflect.*;
import artofillusion.ui.*;
import artofillusion.util.*;
import javax.xml.parsers.*;
import org.w3c.dom.*;
public class PluginRegistry
{
private static final ArrayList<ClassLoader> pluginLoaders = new ArrayList<ClassLoader>();
private static final HashSet<Class> categories = new HashSet<Class>();
private static final HashMap<Class, List<Object>> categoryClasses = new HashMap<Class, List<Object>>();
private static final HashMap<String, Map<String, PluginResource>> resources = new HashMap<String, Map<String, PluginResource>>();
private static final HashMap<String, ExportInfo> exports = new HashMap<String, ExportInfo>();
private static final HashMap<String, Object> classMap = new HashMap<String, Object>();
/**
* Scan all files in the Plugins directory, read in their indices, and record all plugins
* contained in them.
*/
static void scanPlugins()
{
File dir = new File(ArtOfIllusion.PLUGIN_DIRECTORY);
if (!dir.exists())
{
new BStandardDialog("", UIUtilities.breakString(Translate.text("cannotLocatePlugins")), BStandardDialog.ERROR).showMessageDialog(null);
return;
}
// Scan the plugins directory, and parse the index in every jar file.
HashSet<JarInfo> jars = new HashSet<JarInfo>();
for (String file : dir.list())
{
try
{
jars.add(new JarInfo(new File(dir, file)));
}
catch (IOException ex)
{
// Not a zip file.
}
catch (Exception ex)
{
System.err.println("*** Exception loading plugin file "+file);
ex.printStackTrace(System.err);
}
}
// Now build a classloader for each one, registering plugins, categories, and resources.
// This needs to be done in the proper order to account for dependencies between plugins.
HashMap<String, JarInfo> nameMap = new HashMap<String, JarInfo>();
while (jars.size() > 0)
{
boolean processedAny = false;
for (JarInfo jar : new ArrayList<JarInfo>(jars))
{
// See if we've already processed all other jars it depends on.
boolean importsOk = true;
for (String importName : jar.imports)
{
importsOk &= nameMap.containsKey(importName);
if (!importsOk)
break;
}
if (importsOk)
{
processJar(jar, nameMap);
processedAny = true;
jars.remove(jar);
}
}
if (!processedAny)
{
System.err.println("*** The following plugins were not loaded because their imports could not be resolved:");
for (Iterator jarIterator = jars.iterator(); jarIterator.hasNext(); )
System.out.println(((JarInfo) jarIterator.next()).file.getName());
System.err.println();
break;
}
}
}
/**
* Process a single jar file in the Plugins directory.
*
* @param jar the jar file being processed
* @param nameMap maps plugin names to JarInfo objects
*/
private static void processJar(JarInfo jar, Map<String, JarInfo> nameMap)
{
try
{
if (jar.imports.size() == 0)
jar.loader = new URLClassLoader(new URL [] {jar.file.toURI().toURL()});
else
{
SearchlistClassLoader loader = new SearchlistClassLoader(new URL [] {jar.file.toURI().toURL()});;
jar.loader = loader;
for (String importName : jar.imports)
loader.add(nameMap.get(importName).loader);
}
pluginLoaders.add(jar.loader);
HashMap<String, Object> classNameMap = new HashMap<String, Object>();
if (jar.name != null && jar.name.length() > 0)
nameMap.put(jar.name, jar);
for (String category : jar.categories)
addCategory(jar.loader.loadClass(category));
for (String pluginName : jar.plugins)
{
Object plugin = jar.loader.loadClass(pluginName).newInstance();
registerPlugin(plugin);
classNameMap.put(pluginName, plugin);
}
for (ExportInfo info : jar.exports)
{
info.plugin = classNameMap.get(info.className);
registerExportedMethod(info);
}
for (ResourceInfo info : jar.resources)
{
registerResource(info.type, info.id, jar.loader, info.name, info.locale);
}
}
catch (Exception ex)
{
new BStandardDialog("", UIUtilities.breakString(Translate.text("pluginLoadError", jar.file.getName())), BStandardDialog.ERROR).showMessageDialog(null);
System.err.println("*** Exception while initializing plugin "+jar.file.getName()+":");
ex.printStackTrace();
}
}
/**
* Get the ClassLoaders for all jar files in the Plugins directory. There is one ClassLoader
* for every jar.
*/
public static List<ClassLoader> getPluginClassLoaders()
{
return new ArrayList<ClassLoader>(pluginLoaders);
}
/**
* Define a new category of plugins. A category is specified by a class or interface. After
* adding a category, any call to {@link #registerPlugin(Object)} will check the registered object
* to see if it is an instance of the specified class. If so, it is added to the list of plugins
* in that category.
*/
public static void addCategory(Class category)
{
categories.add(category);
}
/**
* Get all categories of plugins that have been defined.
*/
public static List<Class> getCategories()
{
return new ArrayList<Class>(categories);
}
/**
* Register a new plugin. The specified object is checked against every defined category of plugins
* by seeing if it is an instance of the class or interface defining each category. If so, it is
* added to the list of plugins in that category.
*/
public static void registerPlugin(Object plugin)
{
classMap.put(plugin.getClass().getName(), plugin);
for (Class category : categories)
{
if (category.isInstance(plugin))
{
List<Object> instances = categoryClasses.get(category);
if (instances == null)
{
instances = new ArrayList<Object>();
categoryClasses.put(category, instances);
}
instances.add(plugin);
}
}
}
/**
* Get all registered plugins in a particular category.
*/
public static <T> List<T> getPlugins(Class<T> category)
{
List<Object> plugins = categoryClasses.get(category);
if (plugins == null)
return new ArrayList<T>();
ArrayList<T> list = new ArrayList<T>(plugins.size());
for(Object plugin : plugins)
list.add((T) plugin);
return list;
}
/**
* Get the registered plugin object of a particular class. Unlike {@link #getPlugins(Class)},
* the specified class name must be the exact class of the object, not a superclass or interface.
* If multiple plugins of the same class have been registered, this returns the most recently
* registered one.
*
* @param classname the fully qualified name of the class of the plugin object to return
* @return the plugin object of the specified class, or null if no matching plugin has been registered
*/
public static Object getPluginObject(String classname)
{
return classMap.get(classname);
}
/**
* Register a new resource. You can then call {@link #getResource(String, String)} to look up
* a particular resource, or {@link #getResources(String)} to find all registered resources of
* a particular type.
*
* @param type the type of resource being registered
* @param id the id of this resource
* @param loader the ClassLoader with which to load the resource
* @param name the fully qualified name of the resource, that should be passed to
* <code>loader.getResource()</code> to load it
* @param locale the locale this resource represents (may be null)
* @throws IllegalArgumentException if there is already a registered resource with the same type, id, and locale
*/
public static void registerResource(String type, String id, ClassLoader loader, String name, Locale locale) throws IllegalArgumentException
{
Map<String, PluginResource> resourcesForType = resources.get(type);
if (resourcesForType == null)
{
resourcesForType = new HashMap<String, PluginResource>();
resources.put(type, resourcesForType);
}
PluginResource resource = resourcesForType.get(id);
if (resource == null)
{
resource = new PluginResource(type, id);
resourcesForType.put(id, resource);
}
resource.addResource(name, loader, locale);
}
/**
* Get a list of all type identifiers for which there are PluginResources available.
*/
public static List<String> getResourceTypes()
{
return new ArrayList<String>(resources.keySet());
}
/**
* Get a list of all registered PluginResources of a particular type.
*/
public static List<PluginResource> getResources(String type)
{
Map<String, PluginResource> resourcesForType = resources.get(type);
if (resourcesForType == null)
return new ArrayList<PluginResource>();
return new ArrayList<PluginResource>(resourcesForType.values());
}
/**
* Get the PluginResource with a particular type and id, or null if there is no such resource.
*/
public static PluginResource getResource(String type, String id)
{
Map<String, PluginResource> resourcesForType = resources.get(type);
if (resourcesForType == null)
return null;
return resourcesForType.get(id);
}
/**
* Register a method which may be invoked on a plugin object. This allows external code to easily
* use features of a plugin without needing to directly import that plugin or use reflection.
* Use {@link #getExportedMethodIds()} to get a list of all exported methods that have been
* registered, and {@link #invokeExportedMethod(String, Object[])} to invoke one.
*
* @param plugin the plugin object on which the method should be invoked
* @param method the name of the method to invoke
* @param id a unique identifier which may be passed to <code>invokeExportedMethod()</code>
* to identify this method
*/
public static void registerExportedMethod(Object plugin, String method, String id) throws IllegalArgumentException
{
ExportInfo info = new ExportInfo();
info.plugin = plugin;
info.method = method;
info.id = id;
registerExportedMethod(info);
}
private static void registerExportedMethod(ExportInfo export) throws IllegalArgumentException
{
if (exports.containsKey(export.id))
throw new IllegalArgumentException("Multiple exported methods with id="+export.id);
exports.put(export.id, export);
}
/**
* Get a list of the identifiers of all exported methods which have been registered.
*/
public static List<String> getExportedMethodIds()
{
return new ArrayList<String>(exports.keySet());
}
/**
* Invoke an exported method of a plugin object.
*
* @param id the unique identifier of the method to invoke
* @param args the list of arguments to pass to the method. If the method has no arguments,
* this may be null.
* @return the value returned by the method after it was invoked
* @throws NoSuchMethodException if there is no exported method with the specified ID, or if there
* is no form of the exported method whose arguments are compatible with the specified args array.
* @throws InvocationTargetException if the method threw an exception when it was invoked.
*/
public static Object invokeExportedMethod(String id, Object... args) throws NoSuchMethodException, InvocationTargetException
{
ExportInfo info = exports.get(id);
if (info == null)
throw new NoSuchMethodException("There is no exported method with id="+id);
// Try to find a method to invoke.
for (Method method : info.plugin.getClass().getMethods())
{
if (!method.getName().equals(info.method))
continue;
try
{
return method.invoke(info.plugin, args);
}
catch (IllegalArgumentException ex)
{
// Possibly the wrong version of an overloaded method, so keep trying.
}
catch (IllegalAccessException ex)
{
// This should be impossible, since getMethods() only returns public methods.
throw new InvocationTargetException(ex);
}
}
throw new NoSuchMethodException("No method found which matches the specified name and argument types.");
}
/**
* This class is used to store information about the content of a jar file during initialization.
*/
private static class JarInfo
{
File file;
String name, version;
ArrayList<String> imports, plugins, categories;
ArrayList<ResourceInfo> resources;
ArrayList<ExportInfo> exports;
ClassLoader loader;
JarInfo(File file) throws IOException
{
this.file = file;
imports = new ArrayList<String>();
plugins = new ArrayList<String>();
categories = new ArrayList<String>();
resources = new ArrayList<ResourceInfo>();
exports = new ArrayList<ExportInfo>();
ZipFile zf = new ZipFile(file);
try
{
ZipEntry ze = zf.getEntry("extensions.xml");
if (ze != null)
{
InputStream in = new BufferedInputStream(zf.getInputStream(ze));
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
try
{
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(in);
Element extensions = doc.getDocumentElement();
if (!"extension".equals(extensions.getNodeName()))
throw new Exception("The root element must be <extension>");
Node nameNode = extensions.getAttributes().getNamedItem("name");
if (nameNode != null)
name = nameNode.getNodeValue();
NodeList categoryList = doc.getElementsByTagName("category");
for (int i = 0; i < categoryList.getLength(); i++)
{
Node category = categoryList.item(i);
categories.add(category.getAttributes().getNamedItem("class").getNodeValue());
}
NodeList pluginList = doc.getElementsByTagName("plugin");
for (int i = 0; i < pluginList.getLength(); i++)
{
Node plugin = pluginList.item(i);
// Check for <export> tags inside the <plugin> tag.
String className = plugin.getAttributes().getNamedItem("class").getNodeValue();
plugins.add(className);
NodeList children = plugin.getChildNodes();
for (int k = 0; k < children.getLength(); k++)
{
Node childNode = children.item(k);
if ("export".equals(childNode.getNodeName()))
{
ExportInfo export = new ExportInfo();
export.method = childNode.getAttributes().getNamedItem("method").getNodeValue();
export.id = childNode.getAttributes().getNamedItem("id").getNodeValue();
export.className = className;
exports.add(export);
}
}
}
NodeList importList = doc.getElementsByTagName("import");
for (int i = 0; i < importList.getLength(); i++)
{
Node importNode = importList.item(i);
imports.add(importNode.getAttributes().getNamedItem("name").getNodeValue());
}
NodeList resourceList = doc.getElementsByTagName("resource");
for (int i = 0; i < resourceList.getLength(); i++)
{
Node resourceNode = resourceList.item(i);
ResourceInfo resource = new ResourceInfo();
resource.type = resourceNode.getAttributes().getNamedItem("type").getNodeValue();
resource.id = resourceNode.getAttributes().getNamedItem("id").getNodeValue();
resource.name = resourceNode.getAttributes().getNamedItem("name").getNodeValue();
Node localeNode = resourceNode.getAttributes().getNamedItem("locale");
if (localeNode != null)
{
String[] parts = localeNode.getNodeValue().split("_");
if (parts.length == 1)
resource.locale = new Locale(parts[0]);
else if (parts.length == 2)
resource.locale = new Locale(parts[0], parts[1]);
else if (parts.length == 3)
resource.locale = new Locale(parts[0], parts[1], parts[2]);
}
resources.add(resource);
}
}
catch (Exception ex)
{
System.err.println("*** Exception while parsing extensions.xml for plugin "+file.getName()+":");
ex.printStackTrace();
throw new IOException();
}
return;
}
ze = zf.getEntry("plugins");
if (ze != null)
{
BufferedReader in = new BufferedReader(new InputStreamReader(zf.getInputStream(ze)));
String className = in.readLine();
while (className != null)
{
plugins.add(className.trim());
className = in.readLine();
}
return;
}
throw new IOException(); // No index found
}
finally
{
zf.close();
}
}
}
/**
* A PluginResource represents a resource that was loaded from a plugin. Each PluginResource
* is identified by a type and an id. Typically the type indicates the purpose for which a
* resource is to be used, and the id designates a specific resource of that type.
* <p>
* It is also possible for several different localized versions of a resource to be available,
* possibly provided by different plugins. A single PluginResource object represents all
* the different localized resources that share the same type and id. When you invoke one of
* the methods to access the resource's contents, the localized version that most closely matches the
* currently selected locale is used.
*/
public static class PluginResource
{
private String type, id;
private ArrayList<String> names;
private ArrayList<ClassLoader> loaders;
private ArrayList<Locale> locales;
private PluginResource(String type, String id)
{
this.type = type;
this.id = id;
names = new ArrayList<String>();
loaders = new ArrayList<ClassLoader>();
locales = new ArrayList<Locale>();
}
private void addResource(String name, ClassLoader loader, Locale locale) throws IllegalArgumentException
{
if (locales.contains(locale))
throw new IllegalArgumentException("Multiple resource definitions for type="+type+", name="+ id +", locale="+locale);
names.add(name);
loaders.add(loader);
locales.add(locale);
}
/**
* Get the type of this PluginResource.
*/
public String getType()
{
return type;
}
/**
* Get the id of this PluginResource.
*/
public String getId()
{
return id;
}
/**
* Find which localized version of the resource best matches a locale.
*/
private int findLocalizedVersion(Locale locale)
{
int bestMatch = 0, bestMatchedLevels = 0;
for (int i = 0; i < locales.size(); i++)
{
Locale loc = locales.get(i);
int matchedLevels = 0;
if (loc != null && loc.getLanguage() == locale.getLanguage())
{
matchedLevels++;
if (loc.getCountry() == locale.getCountry())
{
matchedLevels++;
if (loc.getVariant() == locale.getVariant())
matchedLevels++;
}
}
if (matchedLevels > bestMatchedLevels)
{
bestMatch = i;
bestMatchedLevels = matchedLevels;
}
}
return bestMatch;
}
/**
* Get an InputStream for reading this resource. If there are multiple localized versions,
* the version which best matches the currently selected locale is used.
*/
public InputStream getInputStream()
{
int index = findLocalizedVersion(Translate.getLocale());
return loaders.get(index).getResourceAsStream(names.get(index));
}
/**
* Get a URL for reading this resource. If there are multiple localized versions,
* the version which best matches the currently selected locale is used.
*/
public URL getURL()
{
int index = findLocalizedVersion(Translate.getLocale());
return (loaders.get(index)).getResource(names.get(index));
}
/**
* Get the fully qualified name of the resource this represents. If there are multiple localized
* versions, the version which best matches the currently selected locale is used.
*/
public String getName()
{
int index = findLocalizedVersion(Translate.getLocale());
return names.get(index);
}
/**
* Get the ClassLoader responsible for loading this resource. If there are multiple localized
* versions, the version which best matches the currently selected locale is used.
*/
public ClassLoader getClassLoader()
{
int index = findLocalizedVersion(Translate.getLocale());
return loaders.get(index);
}
}
/**
* This class is used to store information about an "export" record in an XML file.
*/
private static class ExportInfo
{
String method, id, className;
Object plugin;
}
/**
* This class is used to store information about a "resource" record in an XML file.
*/
private static class ResourceInfo
{
String type, id, name;
Locale locale;
}
}
The table below shows all metrics for PluginRegistry.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 69.00 | Number of blocks | |
| BLOCK_COMMENT | 10.00 | Number of block comment lines | |
| COMMENTS | 151.00 | Comment lines | |
| COMMENT_DENSITY | 0.52 | Comment density | |
| COMPARISONS | 40.00 | Number of comparison operators | |
| CYCLOMATIC | 73.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 27.00 | Comments in declarations | |
| DOC_COMMENT | 132.00 | Number of javadoc comment lines | |
| ELOC | 288.00 | Effective lines of code | |
| EXEC_COMMENTS | 8.00 | Comments in executable code | |
| EXITS | 93.00 | Procedure exits | |
| FUNCTIONS | 26.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 73.29 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 74.00 | 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 | 1.00 | 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 | 1.00 | 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 | 1.00 | 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 | 16.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 1.00 | 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 | 2.00 | 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 | 3.00 | 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 | 3.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 3.00 | 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 | 7.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 14.00 | 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 | 1.00 | 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 | 1.00 | 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 | 4.00 | 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 | 0.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 2.00 | 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 | 3.00 | 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 | 1.00 | 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 | 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 | 1.00 | 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 | 3.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 1.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 6.00 | 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 | 660.00 | Number of lines in the source file | |
| LINE_COMMENT | 9.00 | Number of line comments | |
| LOC | 436.00 | Lines of code | |
| LOGICAL_LINES | 209.00 | Number of statements | |
| LOOPS | 9.00 | Number of loops | |
| NEST_DEPTH | 7.00 | Maximum nesting depth | |
| OPERANDS | 1070.00 | Number of operands | |
| OPERATORS | 1921.00 | Number of operators | |
| PARAMS | 27.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 2991.00 | Halstead program length | |
| PROGRAM_VOCAB | 415.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 47.00 | Number of return points from functions | |
| SIZE | 22668.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 365.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 50.00 | Number of unique operators | |
| WHITESPACE | 73.00 | Number of whitespace lines | |