NameLookup.java
| Index Score | ||
|---|---|---|
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net.sourceforge.phpdt.internal.core |
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PHPeclipse |
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 | |
|---|---|---|
| LINE_COMMENT | Number of line comments |  |
| LOOPS | Number of loops | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| COMMENTS | Comment lines | |
| SIZE | Size of the file in bytes | |
| DOC_COMMENT | Number of javadoc comment lines | |
| CYCLOMATIC | Cyclomatic complexity | |
| BLOCKS | Number of blocks | |
| COMPARISONS | Number of comparison operators | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0270 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| LOGICAL_LINES | Number of statements | |
| LINES | Number of lines in the source file | |
| ELOC | Effective lines of code | |
| OPERATORS | Number of operators | |
| PROGRAM_LENGTH | Halstead program length | |
| OPERANDS | Number of operands | |
| LOC | Lines of code | |
| PARAMS | Number of formal parameter declarations | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| DECL_COMMENTS | Comments in declarations | |
| EXEC_COMMENTS | Comments in executable code | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| UNIQUE_OPERANDS | Number of unique operands | |
| JAVA0173 | JAVA0173 Unused method parameter | |
| EXITS | Procedure exits | |
| JAVA0049 | JAVA0049 Nested block at depth N (maximum: M) | |
| RETURNS | Number of return points from functions | |
| NEST_DEPTH | Maximum nesting depth | |
| UNIQUE_OPERATORS | Number of unique operators | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0174 | JAVA0174 Assigned local variable never used | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0285 | JAVA0285 Dereference of potentially null variable | |
| JAVA0171 | JAVA0171 Unused local variable | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| WHITESPACE | Number of whitespace lines | |
| JAVA0130 | JAVA0130 Non-static method does not use instance fields | |
/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package net.sourceforge.phpdt.internal.core;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import net.sourceforge.phpdt.core.IClasspathEntry;
import net.sourceforge.phpdt.core.ICompilationUnit;
import net.sourceforge.phpdt.core.IJavaElement;
import net.sourceforge.phpdt.core.IJavaProject;
import net.sourceforge.phpdt.core.IPackageFragment;
import net.sourceforge.phpdt.core.IPackageFragmentRoot;
import net.sourceforge.phpdt.core.IType;
import net.sourceforge.phpdt.core.IWorkingCopy;
import net.sourceforge.phpdt.core.JavaCore;
import net.sourceforge.phpdt.core.JavaModelException;
import net.sourceforge.phpdt.internal.core.util.PerThreadObject;
import net.sourceforge.phpdt.internal.core.util.Util;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.IPath;
/**
* A <code>NameLookup</code> provides name resolution within a Java project.
* The name lookup facility uses the project's classpath to prioritize the order
* in which package fragments are searched when resolving a name.
*
* <p>
* Name lookup only returns a handle when the named element actually exists in
* the model; otherwise <code>null</code> is returned.
*
* <p>
* There are two logical sets of methods within this interface. Methods which
* start with <code>find*</code> are intended to be convenience methods for
* quickly finding an element within another element; for instance, for finding
* a class within a package. The other set of methods all begin with
* <code>seek*</code>. These methods do comprehensive searches of the
* <code>IJavaProject</code> returning hits in real time through an
* <code>IJavaElementRequestor</code>.
*
*/
public class NameLookup {
/**
* Accept flag for specifying classes.
*/
public static final int ACCEPT_CLASSES = 0x00000002;
/**
* Accept flag for specifying interfaces.
*/
public static final int ACCEPT_INTERFACES = 0x00000004;
/**
* The <code>IPackageFragmentRoot</code>'s associated with the classpath
* of this NameLookup facility's project.
*/
protected IPackageFragmentRoot[] fPackageFragmentRoots = null;
/**
* Table that maps package names to lists of package fragments for all
* package fragments in the package fragment roots known by this name lookup
* facility. To allow > 1 package fragment with the same name, values are
* arrays of package fragments ordered as they appear on the classpath.
*/
protected Map fPackageFragments;
/**
* The <code>IWorkspace</code> that this NameLookup is configure within.
*/
protected IWorkspace workspace;
/**
* A map from compilation unit handles to units to look inside (compilation
* units or working copies). Allows working copies to take precedence over
* compilation units. The cache is a 2-level cache, first keyed by thread.
*/
protected PerThreadObject unitsToLookInside = new PerThreadObject();
public NameLookup(IJavaProject project) throws JavaModelException {
configureFromProject(project);
}
/**
* Returns true if:
* <ul>
* <li>the given type is an existing class and the flag's
* <code>ACCEPT_CLASSES</code> bit is on
* <li>the given type is an existing interface and the
* <code>ACCEPT_INTERFACES</code> bit is on
* <li>neither the <code>ACCEPT_CLASSES</code> or
* <code>ACCEPT_INTERFACES</code> bit is on
* </ul>
* Otherwise, false is returned.
*/
protected boolean acceptType(IType type, int acceptFlags) {
if (acceptFlags == 0)
return true; // no flags, always accepted
try {
if (type.isClass()) {
return (acceptFlags & ACCEPT_CLASSES) != 0;
} else {
return (acceptFlags & ACCEPT_INTERFACES) != 0;
}
} catch (JavaModelException npe) {
return false; // the class is not present, do not accept.
}
}
/**
* Configures this <code>NameLookup</code> based on the info of the given
* <code>IJavaProject</code>.
*
* @throws JavaModelException
* if the <code>IJavaProject</code> has no classpath.
*/
private void configureFromProject(IJavaProject project)
throws JavaModelException {
workspace = ResourcesPlugin.getWorkspace();
fPackageFragmentRoots = ((JavaProject) project)
.getAllPackageFragmentRoots();
fPackageFragments = new HashMap();
IPackageFragment[] frags = this.getPackageFragmentsInRoots(
fPackageFragmentRoots, project);
for (int i = 0; i < frags.length; i++) {
IPackageFragment fragment = frags[i];
IPackageFragment[] entry = (IPackageFragment[]) fPackageFragments
.get(fragment.getElementName());
if (entry == null) {
entry = new IPackageFragment[1];
entry[0] = fragment;
fPackageFragments.put(fragment.getElementName(), entry);
} else {
IPackageFragment[] copy = new IPackageFragment[entry.length + 1];
System.arraycopy(entry, 0, copy, 0, entry.length);
copy[entry.length] = fragment;
fPackageFragments.put(fragment.getElementName(), copy);
}
}
}
/**
* Finds every type in the project whose simple name matches the prefix,
* informing the requestor of each hit. The requestor is polled for
* cancellation at regular intervals.
*
* <p>
* The <code>partialMatch</code> argument indicates partial matches should
* be considered.
*/
private void findAllTypes(String prefix, boolean partialMatch,
int acceptFlags, IJavaElementRequestor requestor) {
int count = fPackageFragmentRoots.length;
for (int i = 0; i < count; i++) {
if (requestor.isCanceled())
return;
IPackageFragmentRoot root = fPackageFragmentRoots[i];
IJavaElement[] packages = null;
try {
packages = root.getChildren();
} catch (JavaModelException npe) {
continue; // the root is not present, continue;
}
if (packages != null) {
for (int j = 0, packageCount = packages.length; j < packageCount; j++) {
if (requestor.isCanceled())
return;
seekTypes(prefix, (IPackageFragment) packages[j],
partialMatch, acceptFlags, requestor);
}
}
}
}
/**
* Returns the <code>ICompilationUnit</code> which defines the type named
* <code>qualifiedTypeName</code>, or <code>null</code> if none exists.
* The domain of the search is bounded by the classpath of the
* <code>IJavaProject</code> this <code>NameLookup</code> was obtained
* from.
* <p>
* The name must be fully qualified (eg "java.lang.Object",
* "java.util.Hashtable$Entry")
*/
public ICompilationUnit findCompilationUnit(String qualifiedTypeName) {
String pkgName = IPackageFragment.DEFAULT_PACKAGE_NAME;
String cuName = qualifiedTypeName;
int index = qualifiedTypeName.lastIndexOf('.');
if (index != -1) {
pkgName = qualifiedTypeName.substring(0, index);
cuName = qualifiedTypeName.substring(index + 1);
}
index = cuName.indexOf('$');
if (index != -1) {
cuName = cuName.substring(0, index);
}
cuName += ".java"; //$NON-NLS-1$
IPackageFragment[] frags = (IPackageFragment[]) fPackageFragments
.get(pkgName);
if (frags != null) {
for (int i = 0; i < frags.length; i++) {
IPackageFragment frag = frags[i];
// if (!(frag instanceof JarPackageFragment)) {
// ICompilationUnit cu= frag.getCompilationUnit(cuName);
// if (cu != null && cu.exists()) {
// return cu;
// }
// }
}
}
return null;
}
/**
* Returns the package fragment whose path matches the given (absolute)
* path, or <code>null</code> if none exist. The domain of the search is
* bounded by the classpath of the <code>IJavaProject</code> this
* <code>NameLookup</code> was obtained from. The path can be: - internal
* to the workbench: "/Project/src" - external to the workbench:
* "c:/jdk/classes.zip/java/lang"
*/
public IPackageFragment findPackageFragment(IPath path) {
if (!path.isAbsolute()) {
throw new IllegalArgumentException(Util.bind("path.mustBeAbsolute")); //$NON-NLS-1$
}
/*
* this code should rather use the package fragment map to find the
* candidate package, then check if the respective enclosing root maps
* to the one on this given IPath.
*/
IResource possibleFragment = workspace.getRoot().findMember(path);
if (possibleFragment == null) {
// external jar
for (int i = 0; i < fPackageFragmentRoots.length; i++) {
IPackageFragmentRoot root = fPackageFragmentRoots[i];
if (!root.isExternal()) {
continue;
}
IPath rootPath = root.getPath();
int matchingCount = rootPath.matchingFirstSegments(path);
if (matchingCount != 0) {
String name = path.toOSString();
// + 1 is for the File.separatorChar
name = name.substring(rootPath.toOSString().length() + 1,
name.length());
name = name.replace(File.separatorChar, '.');
IJavaElement[] list = null;
try {
list = root.getChildren();
} catch (JavaModelException npe) {
continue; // the package fragment root is not present;
}
int elementCount = list.length;
for (int j = 0; j < elementCount; j++) {
IPackageFragment packageFragment = (IPackageFragment) list[j];
if (nameMatches(name, packageFragment, false)) {
return packageFragment;
}
}
}
}
} else {
IJavaElement fromFactory = JavaCore.create(possibleFragment);
if (fromFactory == null) {
return null;
}
if (fromFactory instanceof IPackageFragment) {
return (IPackageFragment) fromFactory;
} else if (fromFactory instanceof IJavaProject) {
// default package in a default root
JavaProject project = (JavaProject) fromFactory;
try {
IClasspathEntry entry = project.getClasspathEntryFor(path);
if (entry != null) {
IPackageFragmentRoot root = project
.getPackageFragmentRoot(project.getResource());
IPackageFragment[] pkgs = (IPackageFragment[]) fPackageFragments
.get(IPackageFragment.DEFAULT_PACKAGE_NAME);
if (pkgs == null) {
return null;
}
for (int i = 0; i < pkgs.length; i++) {
if (pkgs[i].getParent().equals(root)) {
return pkgs[i];
}
}
}
} catch (JavaModelException e) {
return null;
}
}
}
return null;
}
/**
* Returns the package fragments whose name matches the given (qualified)
* name, or <code>null</code> if none exist.
*
* The name can be: - empty: "" - qualified: "pack.pack1.pack2"
*
* @param partialMatch
* partial name matches qualify when <code>true</code>, only
* exact name matches qualify when <code>false</code>
*/
public IPackageFragment[] findPackageFragments(String name,
boolean partialMatch) {
int count = fPackageFragmentRoots.length;
if (partialMatch) {
name = name.toLowerCase();
for (int i = 0; i < count; i++) {
IPackageFragmentRoot root = fPackageFragmentRoots[i];
IJavaElement[] list = null;
try {
list = root.getChildren();
} catch (JavaModelException npe) {
continue; // the package fragment root is not present;
}
int elementCount = list.length;
IPackageFragment[] result = new IPackageFragment[elementCount];
int resultLength = 0;
for (int j = 0; j < elementCount; j++) {
IPackageFragment packageFragment = (IPackageFragment) list[j];
if (nameMatches(name, packageFragment, true)) {
result[resultLength++] = packageFragment;
}
}
if (resultLength > 0) {
System.arraycopy(result, 0,
result = new IPackageFragment[resultLength], 0,
resultLength);
return result;
} else {
return null;
}
}
} else {
IPackageFragment[] fragments = (IPackageFragment[]) fPackageFragments
.get(name);
if (fragments != null) {
IPackageFragment[] result = new IPackageFragment[fragments.length];
int resultLength = 0;
for (int i = 0; i < fragments.length; i++) {
IPackageFragment packageFragment = fragments[i];
result[resultLength++] = packageFragment;
}
if (resultLength > 0) {
System.arraycopy(result, 0,
result = new IPackageFragment[resultLength], 0,
resultLength);
return result;
} else {
return null;
}
}
}
return null;
}
/**
*
*/
public IType findType(String typeName, String packageName,
boolean partialMatch, int acceptFlags) {
if (packageName == null) {
packageName = IPackageFragment.DEFAULT_PACKAGE_NAME;
}
JavaElementRequestor elementRequestor = new JavaElementRequestor();
seekPackageFragments(packageName, false, elementRequestor);
IPackageFragment[] packages = elementRequestor.getPackageFragments();
for (int i = 0, length = packages.length; i < length; i++) {
IType type = findType(typeName, packages[i], partialMatch,
acceptFlags);
if (type != null)
return type;
}
return null;
}
/**
* Returns all the package fragments found in the specified package fragment
* roots. Make sure the returned fragments have the given project as great
* parent. This ensures the name lookup will not refer to another project
* (through jar package fragment roots)
*/
private IPackageFragment[] getPackageFragmentsInRoots(
IPackageFragmentRoot[] roots, IJavaProject project) {
// The following code assumes that all the roots have the given project
// as their parent
ArrayList frags = new ArrayList();
for (int i = 0; i < roots.length; i++) {
IPackageFragmentRoot root = roots[i];
try {
IJavaElement[] children = root.getChildren();
/*
* 2 jar package fragment roots can be equals but not belonging
* to the same project. As a result, they share the same element
* info. So this jar package fragment root could get the
* children of another jar package fragment root. The following
* code ensures that the children of this jar package fragment
* root have the given project as a great parent.
*/
int length = children.length;
if (length == 0)
continue;
if (children[0].getParent().getParent().equals(project)) {
// the children have the right parent, simply add them to
// the list
for (int j = 0; j < length; j++) {
frags.add(children[j]);
}
} else {
// create a new handle with the root as the parent
for (int j = 0; j < length; j++) {
frags.add(root.getPackageFragment(children[j]
.getElementName()));
}
}
} catch (JavaModelException e) {
// do nothing
}
}
IPackageFragment[] fragments = new IPackageFragment[frags.size()];
frags.toArray(fragments);
return fragments;
}
/**
* Returns the first type in the given package whose name matches the given
* (unqualified) name, or <code>null</code> if none exist. Specifying a
* <code>null</code> package will result in no matches. The domain of the
* search is bounded by the Java project from which this name lookup was
* obtained.
*
* @param name
* the name of the type to find
* @param pkg
* the package to search
* @param partialMatch
* partial name matches qualify when <code>true</code>, only
* exact name matches qualify when <code>false</code>
* @param acceptFlags
* a bit mask describing if classes, interfaces or both classes
* and interfaces are desired results. If no flags are specified,
* all types are returned.
*
* @see #ACCEPT_CLASSES
* @see #ACCEPT_INTERFACES
*/
public IType findType(String name, IPackageFragment pkg,
boolean partialMatch, int acceptFlags) {
if (pkg == null) {
return null;
}
// Return first found (ignore duplicates).
// synchronized(JavaModelManager.getJavaModelManager()){
// SingleTypeRequestor typeRequestor = new SingleTypeRequestor();
// seekTypes(name, pkg, partialMatch, acceptFlags, typeRequestor);
// IType type= typeRequestor.getType();
// return type;
// }
return null;
}
/**
* Returns the type specified by the qualified name, or <code>null</code>
* if none exist. The domain of the search is bounded by the Java project
* from which this name lookup was obtained.
*
* @param name
* the name of the type to find
* @param partialMatch
* partial name matches qualify when <code>true</code>, only
* exact name matches qualify when <code>false</code>
* @param acceptFlags
* a bit mask describing if classes, interfaces or both classes
* and interfaces are desired results. If no flags are specified,
* all types are returned.
*
* @see #ACCEPT_CLASSES
* @see #ACCEPT_INTERFACES
*/
public IType findType(String name, boolean partialMatch, int acceptFlags) {
int index = name.lastIndexOf('.');
String className = null, packageName = null;
if (index == -1) {
packageName = IPackageFragment.DEFAULT_PACKAGE_NAME;
className = name;
} else {
packageName = name.substring(0, index);
className = name.substring(index + 1);
}
return findType(className, packageName, partialMatch, acceptFlags);
}
/**
* Returns true if the given element's name matches the specified
* <code>searchName</code>, otherwise false.
*
* <p>
* The <code>partialMatch</code> argument indicates partial matches should
* be considered. NOTE: in partialMatch mode, the case will be ignored, and
* the searchName must already have been lowercased.
*/
protected boolean nameMatches(String searchName, IJavaElement element,
boolean partialMatch) {
if (partialMatch) {
// partial matches are used in completion mode, thus case
// insensitive mode
return element.getElementName().toLowerCase()
.startsWith(searchName);
} else {
return element.getElementName().equals(searchName);
}
}
/**
* Notifies the given requestor of all package fragments with the given
* name. Checks the requestor at regular intervals to see if the requestor
* has canceled. The domain of the search is bounded by the
* <code>IJavaProject</code> this <code>NameLookup</code> was obtained
* from.
*
* @param partialMatch
* partial name matches qualify when <code>true</code>; only
* exact name matches qualify when <code>false</code>
*/
public void seekPackageFragments(String name, boolean partialMatch,
IJavaElementRequestor requestor) {
int count = fPackageFragmentRoots.length;
String matchName = partialMatch ? name.toLowerCase() : name;
for (int i = 0; i < count; i++) {
if (requestor.isCanceled())
return;
IPackageFragmentRoot root = fPackageFragmentRoots[i];
IJavaElement[] list = null;
try {
list = root.getChildren();
} catch (JavaModelException npe) {
continue; // this root package fragment is not present
}
int elementCount = list.length;
for (int j = 0; j < elementCount; j++) {
if (requestor.isCanceled())
return;
IPackageFragment packageFragment = (IPackageFragment) list[j];
if (nameMatches(matchName, packageFragment, partialMatch))
requestor.acceptPackageFragment(packageFragment);
}
}
}
/**
* Notifies the given requestor of all types (classes and interfaces) in the
* given package fragment with the given (unqualified) name. Checks the
* requestor at regular intervals to see if the requestor has canceled. If
* the given package fragment is <code>null</code>, all types in the
* project whose simple name matches the given name are found.
*
* @param name
* The name to search
* @param pkg
* The corresponding package fragment
* @param partialMatch
* partial name matches qualify when <code>true</code>; only
* exact name matches qualify when <code>false</code>
* @param acceptFlags
* a bit mask describing if classes, interfaces or both classes
* and interfaces are desired results. If no flags are specified,
* all types are returned.
* @param requestor
* The requestor that collects the result
*
* @see #ACCEPT_CLASSES
* @see #ACCEPT_INTERFACES
*/
public void seekTypes(String name, IPackageFragment pkg,
boolean partialMatch, int acceptFlags,
IJavaElementRequestor requestor) {
String matchName = partialMatch ? name.toLowerCase() : name;
if (matchName.indexOf('.') >= 0) { // looks for member type A.B
matchName = matchName.replace('.', '$');
}
if (pkg == null) {
findAllTypes(matchName, partialMatch, acceptFlags, requestor);
return;
}
IPackageFragmentRoot root = (IPackageFragmentRoot) pkg.getParent();
try {
int packageFlavor = root.getKind();
switch (packageFlavor) {
// case IPackageFragmentRoot.K_BINARY :
// seekTypesInBinaryPackage(matchName, pkg, partialMatch,
// acceptFlags, requestor);
// break;
case IPackageFragmentRoot.K_SOURCE:
seekTypesInSourcePackage(matchName, pkg, partialMatch,
acceptFlags, requestor);
break;
default:
return;
}
} catch (JavaModelException e) {
return;
}
}
/**
* Performs type search in a binary package.
*/
// protected void seekTypesInBinaryPackage(String name, IPackageFragment
// pkg, boolean partialMatch, int acceptFlags, IJavaElementRequestor
// requestor) {
// IClassFile[] classFiles= null;
// try {
// classFiles= pkg.getClassFiles();
// } catch (JavaModelException npe) {
// return; // the package is not present
// }
// int length= classFiles.length;
//
// String unqualifiedName= name;
// int index= name.lastIndexOf('$');
// if (index != -1) {
// //the type name of the inner type
// unqualifiedName= name.substring(index + 1, name.length());
// // unqualifiedName is empty if the name ends with a '$' sign.
// // See http://dev.eclipse.org/bugs/show_bug.cgi?id=14642
// if ((unqualifiedName.length() > 0 &&
// Character.isDigit(unqualifiedName.charAt(0))) || unqualifiedName.length()
// == 0){
// unqualifiedName = name;
// }
// }
// String matchName= partialMatch ? name.toLowerCase() : name;
// for (int i= 0; i < length; i++) {
// if (requestor.isCanceled())
// return;
// IClassFile classFile= classFiles[i];
// String elementName = classFile.getElementName();
// if (partialMatch) elementName = elementName.toLowerCase();
//
// /**
// * Must use startWith because matchName will never have the
// * extension ".class" and the elementName always will.
// */
// if (elementName.startsWith(matchName)) {
// IType type= null;
// try {
// type= classFile.getType();
// } catch (JavaModelException npe) {
// continue; // the classFile is not present
// }
// if (!partialMatch || (type.getElementName().length() > 0 &&
// !Character.isDigit(type.getElementName().charAt(0)))) { //not an
// anonymous type
// if (nameMatches(unqualifiedName, type, partialMatch) && acceptType(type,
// acceptFlags))
// requestor.acceptType(type);
// }
// }
// }
// }
/**
* Performs type search in a source package.
*/
protected void seekTypesInSourcePackage(String name, IPackageFragment pkg,
boolean partialMatch, int acceptFlags,
IJavaElementRequestor requestor) {
ICompilationUnit[] compilationUnits = null;
try {
compilationUnits = pkg.getCompilationUnits();
} catch (JavaModelException npe) {
return; // the package is not present
}
int length = compilationUnits.length;
String matchName = name;
int index = name.indexOf('$');
boolean potentialMemberType = false;
String potentialMatchName = null;
if (index != -1) {
// the compilation unit name of the inner type
potentialMatchName = name.substring(0, index);
potentialMemberType = true;
}
/**
* In the following, matchName will never have the extension ".java" and
* the compilationUnits always will. So add it if we're looking for an
* exact match.
*/
String unitName = partialMatch ? matchName.toLowerCase() : matchName
+ ".java"; //$NON-NLS-1$
String potentialUnitName = null;
if (potentialMemberType) {
potentialUnitName = partialMatch ? potentialMatchName.toLowerCase()
: potentialMatchName + ".java"; //$NON-NLS-1$
}
for (int i = 0; i < length; i++) {
if (requestor.isCanceled())
return;
ICompilationUnit compilationUnit = compilationUnits[i];
// unit to look inside
ICompilationUnit unitToLookInside = null;
Map workingCopies = (Map) this.unitsToLookInside.getCurrent();
if (workingCopies != null
&& (unitToLookInside = (ICompilationUnit) workingCopies
.get(compilationUnit)) != null) {
compilationUnit = unitToLookInside;
}
if ((unitToLookInside != null && !potentialMemberType)
|| nameMatches(unitName, compilationUnit, partialMatch)) {
IType[] types = null;
try {
types = compilationUnit.getTypes();
} catch (JavaModelException npe) {
continue; // the compilation unit is not present
}
int typeLength = types.length;
for (int j = 0; j < typeLength; j++) {
if (requestor.isCanceled())
return;
IType type = types[j];
if (nameMatches(matchName, type, partialMatch)) {
if (acceptType(type, acceptFlags))
requestor.acceptType(type);
}
}
} else if (potentialMemberType
&& nameMatches(potentialUnitName, compilationUnit,
partialMatch)) {
IType[] types = null;
try {
types = compilationUnit.getTypes();
} catch (JavaModelException npe) {
continue; // the compilation unit is not present
}
int typeLength = types.length;
for (int j = 0; j < typeLength; j++) {
if (requestor.isCanceled())
return;
IType type = types[j];
if (nameMatches(potentialMatchName, type, partialMatch)) {
seekQualifiedMemberTypes(name.substring(index + 1, name
.length()), type, partialMatch, requestor,
acceptFlags);
}
}
}
}
}
/**
* Remembers a set of compilation units that will be looked inside when
* looking up a type. If they are working copies, they take precedence of
* their compilation units. <code>null</code> means that no special
* compilation units should be used.
*/
public void setUnitsToLookInside(IWorkingCopy[] unitsToLookInside) {
if (unitsToLookInside == null) {
this.unitsToLookInside.setCurrent(null);
} else {
HashMap workingCopies = new HashMap();
this.unitsToLookInside.setCurrent(workingCopies);
for (int i = 0, length = unitsToLookInside.length; i < length; i++) {
IWorkingCopy unitToLookInside = unitsToLookInside[i];
ICompilationUnit original = (ICompilationUnit) unitToLookInside
.getOriginalElement();
if (original != null) {
workingCopies.put(original, unitToLookInside);
} else {
workingCopies.put(unitToLookInside, unitToLookInside);
}
}
}
}
/**
* Notifies the given requestor of all types (classes and interfaces) in the
* given type with the given (possibly qualified) name. Checks the requestor
* at regular intervals to see if the requestor has canceled.
*
* @param partialMatch
* partial name matches qualify when <code>true</code>, only
* exact name matches qualify when <code>false</code>
*/
protected void seekQualifiedMemberTypes(String qualifiedName, IType type,
boolean partialMatch, IJavaElementRequestor requestor,
int acceptFlags) {
if (type == null)
return;
IType[] types = null;
try {
types = type.getTypes();
} catch (JavaModelException npe) {
return; // the enclosing type is not present
}
String matchName = qualifiedName;
int index = qualifiedName.indexOf('$');
boolean nested = false;
if (index != -1) {
matchName = qualifiedName.substring(0, index);
nested = true;
}
int length = types.length;
for (int i = 0; i < length; i++) {
if (requestor.isCanceled())
return;
IType memberType = types[i];
if (nameMatches(matchName, memberType, partialMatch))
if (nested) {
seekQualifiedMemberTypes(qualifiedName.substring(index + 1,
qualifiedName.length()), memberType, partialMatch,
requestor, acceptFlags);
} else {
if (acceptType(memberType, acceptFlags))
requestor.acceptMemberType(memberType);
}
}
}
}
The table below shows all metrics for NameLookup.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 114.00 | Number of blocks | |
| BLOCK_COMMENT | 13.00 | Number of block comment lines | |
| COMMENTS | 324.00 | Comment lines | |
| COMMENT_DENSITY | 0.83 | Comment density | |
| COMPARISONS | 80.00 | Number of comparison operators | |
| CYCLOMATIC | 116.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 26.00 | Comments in declarations | |
| DOC_COMMENT | 228.00 | Number of javadoc comment lines | |
| ELOC | 392.00 | Effective lines of code | |
| EXEC_COMMENTS | 16.00 | Comments in executable code | |
| EXITS | 60.00 | Procedure exits | |
| FUNCTIONS | 17.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 101.90 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 97.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 0.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 0.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 0.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 0.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 0.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 16.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 0.00 | JAVA0035 Missing braces in for statement | |
| JAVA0036 | 0.00 | JAVA0036 Missing braces in while statement | |
| JAVA0038 | 0.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 0.00 | JAVA0039 Break statement with label | |
| JAVA0040 | 0.00 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0041 | 0.00 | JAVA0041 Nested synchronized block | |
| JAVA0042 | 0.00 | JAVA0042 Empty synchronized statement | |
| JAVA0043 | 0.00 | JAVA0043 Inner class does not use outer class | |
| JAVA0044 | 0.00 | JAVA0044 Serializable class with no instance variables | |
| JAVA0045 | 0.00 | JAVA0045 Serializable class with only transient fields | |
| JAVA0046 | 0.00 | JAVA0046 Name of class not derived from Exception ends with 'Exception' | |
| JAVA0047 | 0.00 | JAVA0047 Serializable class derives from invalid base class | |
| JAVA0048 | 0.00 | JAVA0048 Name of class derived from Exception does not end with 'Exception' | |
| JAVA0049 | 3.00 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0050 | 0.00 | JAVA0050 Class derives from java.lang.Error | |
| JAVA0051 | 0.00 | JAVA0051 Class derives from java.lang.RuntimeException | |
| JAVA0052 | 0.00 | JAVA0052 Class derives from java.lang.Throwable | |
| JAVA0053 | 0.00 | JAVA0053 Unused label | |
| JAVA0054 | 0.00 | JAVA0054 Inheritance depth N exceeds maximum M | |
| JAVA0055 | 0.00 | JAVA0055 Class should be interface | |
| JAVA0056 | 0.00 | JAVA0056 Unnecessary abstract modifier for interface or annotation | |
| JAVA0057 | 0.00 | JAVA0057 Unnecessary default constructor | |
| JAVA0058 | 0.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 0.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 0.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 0.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 0.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 0.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 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 | 31.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 9.00 | 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 | 1.00 | 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 | 1.00 | 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 | 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 | 1953.00 | 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 | 1.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 3.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 1.00 | 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 | 6.00 | 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 | 1.00 | 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 | 842.00 | Number of lines in the source file | |
| LINE_COMMENT | 83.00 | Number of line comments | |
| LOC | 482.00 | Lines of code | |
| LOGICAL_LINES | 257.00 | Number of statements | |
| LOOPS | 21.00 | Number of loops | |
| NEST_DEPTH | 7.00 | Maximum nesting depth | |
| OPERANDS | 1082.00 | Number of operands | |
| OPERATORS | 2060.00 | Number of operators | |
| PARAMS | 47.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 3142.00 | Halstead program length | |
| PROGRAM_VOCAB | 347.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 50.00 | Number of return points from functions | |
| SIZE | 28674.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 292.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 55.00 | Number of unique operators | |
| WHITESPACE | 36.00 | Number of whitespace lines | |