Java Code Examples for org.eclipse.core.resources.IResource#getFileExtension()

private void addMembersOfFolderToClasspath(String path, IProgressMonitor monitor, IJavaProject javaProject) throws CoreException, JavaModelException {
	IFolder folder = javaProject.getProject().getFolder(path);
	 if (folder != null && folder.exists())
	 {
		 for (IResource res : folder.members())
		 {
			 if (res.getFileExtension() != null && res.getFileExtension().equals("jar") && res.exists())
			 {
				 // check if this Resource is on the classpath
				 if (!javaProject.isOnClasspath(res)) {
					 if (DEBUG)
						 Activator.log("Adding library [" + res.getFullPath() + "] to classpath for project [" + javaProject.getProject().getName() + "]");
					 FixProjectsUtils.addToClassPath(res, IClasspathEntry.CPE_LIBRARY, javaProject, monitor);
				 }
			 }
		 }
	 }
}
 

/**
 * @param resource the input file to be processed
 * @return the arguments to give to the external program
 */
protected String getArguments(IResource resource) {
    String args = getProgramArguments();
    if (args == null) {
        return null;
    }
    String ext = resource.getFileExtension();
    String name = resource.getName();
    String baseName = name.substring(0, name.length() - ext.length());
    String inputName = baseName + getInputFormat();
    String outputName = baseName + getOutputFormat();
    if (baseName.indexOf(' ') >= 0) {
        inputName = "\"" + inputName + "\"";
        outputName = "\"" + outputName + "\"";
    }
    
    if (args.indexOf("%input") >= 0) {
        args = args.replaceAll("%input", inputName);
    }
    if (args.indexOf("%output") >= 0) {
        args = args.replaceAll("%output", outputName);
    }
    if (args.indexOf("%fullinput") >= 0) {
        args = args.replaceAll("%fullinput",
                resource.getParent().getLocation().toFile().getAbsolutePath()
                + File.separator + inputName);
    }
    if (args.indexOf("%fulloutput") >= 0) {
        args = args.replaceAll("%fulloutput",
                resource.getParent().getLocation().toFile().getAbsolutePath()
                + File.separator + outputName);
    }
    return args;
}
 

private boolean containsSourceFile(final IFolder folder) throws CoreException {
    for (final IResource res : folder.members()) {
        if (res.getFileExtension() != null
                && (res.getFileExtension().equals("java") || res.getFileExtension().equals("groovy"))) {
            return true;
        }
    }
    return false;
}
 

public void resourceChanged(IResourceChangeEvent event) {
            // @TODO: need to filter resource events!
            try {
                IResourceDeltaVisitor visitor = new IResourceDeltaVisitor() {
                    
                    boolean keepVisiting = true;
                    
                    public boolean visit(IResourceDelta delta) {
                        
                        if (!keepVisiting || null == designerProject)
                            return false;
                        
                        int k = delta.getKind();
                        if ( ! (IResourceDelta.ADDED == k || 
                                IResourceDelta.REMOVED == k || 
                                IResourceDelta.CHANGED == k) )  // an update could be a name change
                           return true;

//                       if ((delta.getFlags() ...?
                       IResource resource = delta.getResource();
                       if (resource.getType() == IResource.FILE && resource.getProject().equals(designerProject.getProject())) {
                           String resExt = resource.getFileExtension();
                           String typeExt = extForType(); 
                           if (typeExt.length() > 0 && resExt.length() > 0 &&
                               typeExt.equalsIgnoreCase(resExt)) {
                               keepVisiting = false;
                               updateDesignElements();
                           }
                       }
                       return keepVisiting;
                    }
                 };
                 
                 event.getDelta().accept(visitor);
            }
            catch(Exception e) {
                ExtLibToolingLogger.EXT_LIB_TOOLING_LOGGER.error(e, e.toString());            }
        }
 

/**
 * Determines the ignore pattern to use for a resource given the selected action.
 * 
 * @param resource the resource
 * @return the ignore pattern for the specified resource
 */
public String getIgnorePatternFor(IResource resource) {
	switch (selectedAction) {
		case ADD_NAME_ENTRY:
			return resource.getName();
		case ADD_EXTENSION_ENTRY: {
			String extension = resource.getFileExtension();
			return (extension == null) ? resource.getName() : "*." + extension; //$NON-NLS-1$
		}
		case ADD_CUSTOM_ENTRY:
			return customPattern;
	}
	throw new IllegalStateException();
}
 

private String getContentType(IResource resource) {
	String extension = resource.getFileExtension();
	if (FileUtils.JS_EXTENSION.equals(extension)) {
		return "org.eclipse.wst.jsdt.core.jsSource";
	}
	return new StringBuilder("ts.eclipse.ide.core.").append(extension).append("Source").toString();
}
 

/**
 * Checks whether the given resource is a Java artifact (i.e. either a Java
 * source file or a Java class file).
 *
 * @param resource
 *            The resource to check.
 * @return <code>true</code> if the given resource is a Java artifact.
 *         <code>false</code> otherwise.
 */
public static boolean isJavaArtifact(IResource resource) {
    if (resource == null || (resource.getType() != IResource.FILE)) {
        return false;
    }
    String ex = resource.getFileExtension();
    if ("java".equalsIgnoreCase(ex) || "class".equalsIgnoreCase(ex)) {
        return true;
    }
    String name = resource.getName();
    return Archive.isArchiveFileName(name);
}
 

/**
 * Checks whether the given resource is a Java class file.
 *
 * @param resource
 *            The resource to check.
 * @return <code>true</code> if the given resource is a class file,
 *         <code>false</code> otherwise.
 */
public static boolean isClassFile(IResource resource) {
    if (resource == null || (resource.getType() != IResource.FILE)) {
        return false;
    }
    String ex = resource.getFileExtension();
    return "class".equalsIgnoreCase(ex); //$NON-NLS-1$

}
 

/**
 * Gets extension of the resource
 * @param resource
 * @param isLowercase if true and resource has an extension then it will be converted to lowercase
 * @return extension or null (i.e. resource passed is null  or it has no extension)
 */
public static String getExtension(IResource resource, boolean isLowercase) {
	if (resource == null){
		return null;
	}
	String ext = resource.getFileExtension();
	if (ext != null && isLowercase) {
		ext = ext.toLowerCase();
	}
	return ext;
}
 

public static IFile getProjectFile(IContainer container) {
	if (container != null) {
		try {
			for (IResource projResource : container.members()) {
				if (projResource.getFileExtension() != null && (projResource.getFileExtension().equals("csproj") //$NON-NLS-1$
						|| projResource.getName().equals("project.json"))) { //$NON-NLS-1$
					return (IFile) projResource;
				}
			}
		} catch (CoreException e) {
		}
	}
	return null;
}
 

public List<DiagramFileStore> getRecentChildren(final int nbResult) {
    if (!getResource().exists()) {
        return Collections.emptyList();
    }
    refresh();

    final List<DiagramFileStore> result = new ArrayList<>();
    final List<IResource> resources = new ArrayList<>();
    final IFolder folder = getResource();
    try {
        for (final IResource r : folder.members()) {
            if (r.getFileExtension() != null
                    && getCompatibleExtensions().contains(
                            r.getFileExtension())) {
                resources.add(r);
            }
        }
    } catch (final CoreException e) {
        BonitaStudioLog.error(e);
    }

    Collections.sort(resources, new Comparator<IResource>() {

        @Override
        public int compare(final IResource arg0, final IResource arg1) {
            final long lastModifiedArg1 = arg1.getLocation().toFile()
                    .lastModified();
            final long lastModifiedArg0 = arg0.getLocation().toFile()
                    .lastModified();
            return Long.valueOf(lastModifiedArg1).compareTo(
                    Long.valueOf(lastModifiedArg0));
        }
    });

    for (int i = 0; i < nbResult; i++) {
        if (resources.size() > i) {
            result.add(createRepositoryFileStore(resources.get(i).getName()));
        }
    }

    return result;
}
 

@Override
public Change createChange(IProgressMonitor monitor) throws CoreException {
	try {
		monitor.beginTask(RefactoringCoreMessages.RenameTypeRefactoring_creating_change, 4);
		String project= null;
		IJavaProject javaProject= fType.getJavaProject();
		if (javaProject != null)
			project= javaProject.getElementName();
		int flags= JavaRefactoringDescriptor.JAR_MIGRATION | JavaRefactoringDescriptor.JAR_REFACTORING | RefactoringDescriptor.STRUCTURAL_CHANGE;
		try {
			if (!Flags.isPrivate(fType.getFlags()))
				flags|= RefactoringDescriptor.MULTI_CHANGE;
			if (fType.isAnonymous() || fType.isLocal())
				flags|= JavaRefactoringDescriptor.JAR_SOURCE_ATTACHMENT;
		} catch (JavaModelException exception) {
			JavaPlugin.log(exception);
		}
		final String description= Messages.format(RefactoringCoreMessages.RenameTypeProcessor_descriptor_description_short, BasicElementLabels.getJavaElementName(fType.getElementName()));
		final String header= Messages.format(RefactoringCoreMessages.RenameTypeProcessor_descriptor_description, new String[] { JavaElementLabels.getElementLabel(fType, JavaElementLabels.ALL_FULLY_QUALIFIED), getNewElementLabel()});
		final String comment= new JDTRefactoringDescriptorComment(project, this, header).asString();
		final RenameJavaElementDescriptor descriptor= RefactoringSignatureDescriptorFactory.createRenameJavaElementDescriptor(IJavaRefactorings.RENAME_TYPE);
		descriptor.setProject(project);
		descriptor.setDescription(description);
		descriptor.setComment(comment);
		descriptor.setFlags(flags);
		descriptor.setJavaElement(fType);
		descriptor.setNewName(getNewElementName());
		descriptor.setUpdateQualifiedNames(fUpdateQualifiedNames);
		descriptor.setUpdateTextualOccurrences(fUpdateTextualMatches);
		descriptor.setUpdateReferences(fUpdateReferences);
		if (fUpdateQualifiedNames && fFilePatterns != null && !"".equals(fFilePatterns)) //$NON-NLS-1$
			descriptor.setFileNamePatterns(fFilePatterns);
		descriptor.setUpdateSimilarDeclarations(fUpdateSimilarElements);
		descriptor.setMatchStrategy(fRenamingStrategy);
		final DynamicValidationRefactoringChange result= new DynamicValidationRefactoringChange(descriptor, RefactoringCoreMessages.RenameTypeProcessor_change_name);

		if (fChangeManager.containsChangesIn(fType.getCompilationUnit())) {
			TextChange textChange= fChangeManager.get(fType.getCompilationUnit());
			if (textChange instanceof TextFileChange) {
				((TextFileChange) textChange).setSaveMode(TextFileChange.FORCE_SAVE);
			}
		}
		result.addAll(fChangeManager.getAllChanges());
		if (willRenameCU()) {
			IResource resource= fType.getCompilationUnit().getResource();
			if (resource != null && resource.isLinked()) {
				String ext= resource.getFileExtension();
				String renamedResourceName;
				if (ext == null)
					renamedResourceName= getNewElementName();
				else
					renamedResourceName= getNewElementName() + '.' + ext;
				result.add(new RenameResourceChange(fType.getCompilationUnit().getPath(), renamedResourceName));
			} else {
				String renamedCUName= JavaModelUtil.getRenamedCUName(fType.getCompilationUnit(), getNewElementName());
				result.add(new RenameCompilationUnitChange(fType.getCompilationUnit(), renamedCUName));
			}
		}
		monitor.worked(1);
		return result;
	} finally {
		fChangeManager= null;
	}
}
 

@Override
public Change createChange(IProgressMonitor monitor) throws CoreException {
	try {
		monitor.beginTask(RefactoringCoreMessages.RenameTypeRefactoring_creating_change, 4);
		String project = null;
		IJavaProject javaProject = fType.getJavaProject();
		if (javaProject != null) {
			project = javaProject.getElementName();
		}
		int flags = JavaRefactoringDescriptor.JAR_MIGRATION | JavaRefactoringDescriptor.JAR_REFACTORING | RefactoringDescriptor.STRUCTURAL_CHANGE;
		try {
			if (!Flags.isPrivate(fType.getFlags())) {
				flags |= RefactoringDescriptor.MULTI_CHANGE;
			}
			if (fType.isAnonymous() || fType.isLocal()) {
				flags |= JavaRefactoringDescriptor.JAR_SOURCE_ATTACHMENT;
			}
		} catch (JavaModelException exception) {
			JavaLanguageServerPlugin.log(exception);
		}
		final String description = Messages.format(RefactoringCoreMessages.RenameTypeProcessor_descriptor_description_short, BasicElementLabels.getJavaElementName(fType.getElementName()));
		final String header = Messages.format(RefactoringCoreMessages.RenameTypeProcessor_descriptor_description, new String[] { JavaElementLabels.getElementLabel(fType, JavaElementLabels.ALL_FULLY_QUALIFIED), getNewElementLabel() });
		final String comment = new JDTRefactoringDescriptorComment(project, this, header).asString();
		final RenameJavaElementDescriptor descriptor = RefactoringSignatureDescriptorFactory.createRenameJavaElementDescriptor(IJavaRefactorings.RENAME_TYPE);
		descriptor.setProject(project);
		descriptor.setDescription(description);
		descriptor.setComment(comment);
		descriptor.setFlags(flags);
		descriptor.setJavaElement(fType);
		descriptor.setNewName(getNewElementName());
		descriptor.setUpdateQualifiedNames(fUpdateQualifiedNames);
		descriptor.setUpdateTextualOccurrences(fUpdateTextualMatches);
		descriptor.setUpdateReferences(fUpdateReferences);
		if (fUpdateQualifiedNames && fFilePatterns != null && !"".equals(fFilePatterns)) {
			descriptor.setFileNamePatterns(fFilePatterns);
		}
		descriptor.setUpdateSimilarDeclarations(fUpdateSimilarElements);
		descriptor.setMatchStrategy(fRenamingStrategy);
		final DynamicValidationRefactoringChange result = new DynamicValidationRefactoringChange(descriptor, RefactoringCoreMessages.RenameTypeProcessor_change_name);

		if (fChangeManager.containsChangesIn(fType.getCompilationUnit())) {
			TextChange textChange = fChangeManager.get(fType.getCompilationUnit());
			if (textChange instanceof TextFileChange) {
				((TextFileChange) textChange).setSaveMode(TextFileChange.FORCE_SAVE);
			}
		}

		if (willRenameCU()) {
			IResource resource = fType.getCompilationUnit().getResource();
			if (resource != null && resource.isLinked()) {
				result.addAll(fChangeManager.getAllChanges());
				String ext = resource.getFileExtension();
				String renamedResourceName;
				if (ext == null) {
					renamedResourceName = getNewElementName();
				} else {
					renamedResourceName = getNewElementName() + '.' + ext;
				}
				result.add(new RenameResourceChange(fType.getCompilationUnit().getPath(), renamedResourceName));
			} else {
				addTypeDeclarationUpdate(fChangeManager);
				addConstructorRenames(fChangeManager);

				result.addAll(fChangeManager.getAllChanges());

				String renamedCUName = JavaModelUtil.getRenamedCUName(fType.getCompilationUnit(), getNewElementName());
				result.add(new RenameCompilationUnitChange(fType.getCompilationUnit(), renamedCUName));
			}
		} else {
			result.addAll(fChangeManager.getAllChanges());
		}

		monitor.worked(1);
		return result;
	} finally {
		fChangeManager = null;
	}
}
 

/**
 * Visits the resource delta tree determining which files to rebuild (*.py).
 *
 * Subclasses should only reimplement visitChanged, visitAdded and visitRemoved. This method will not be called
 * in the structure provided by pydev.
 *
 * @see org.eclipse.core.resources.IResourceDeltaVisitor#visit(org.eclipse.core.resources.IResourceDelta)
 */
@Override
public boolean visit(IResourceDelta delta) throws CoreException {
    if (delta == null) {
        return true;
    }

    final IResource resource = delta.getResource();

    if (resource == null) {
        return true;
    }

    int type = resource.getType();

    //related bug https://sourceforge.net/tracker/index.php?func=detail&aid=1238850&group_id=85796&atid=577329

    //the team-support plugins of eclipse use the IResource
    //method setTeamPrivateMember to indicate resources
    //that are only in the project for the team-stuff (e.g. .svn or
    //.cvs or _darcs directories).
    if (resource.isTeamPrivateMember()) {
        return true;
    }

    if (type == IResource.FOLDER) {
        switch (delta.getKind()) {
            case IResourceDelta.REMOVED:
                memo.put(PyDevBuilderVisitor.DOCUMENT_TIME, System.currentTimeMillis());
                visitRemovedResource(resource, null, monitor);
                break;
            //for folders, we don't have to do anything if added or changed (we just treat their children, that should
            //resolve for modules -- we do, however have to treat __init__.py differently).
        }

    } else if (type == IResource.FILE) {
        String ext = resource.getFileExtension();
        if (ext == null) { //resource.getFileExtension() may return null if it has none.
            if (resource instanceof IFile) {
                CorePlugin.markAsPyDevFileIfDetected((IFile) resource);
            }
            return true;
        }

        //only analyze projects with the python nature...
        IProject project = resource.getProject();
        PythonNature nature = PythonNature.getPythonNature(project);

        if (project != null && nature != null) {
            //we just want to make the visit if it is a valid python file and it is in the pythonpath
            if (PythonPathHelper.isValidSourceFile("." + ext)) {
                onVisitDelta(delta);

            } else if (ext.equals("pyc")) {
                if (delta.getKind() == IResourceDelta.ADDED) {
                    handleAddedPycFiles(resource, nature);
                }
            }
        }
    }

    return true;
}
 

public Set<Locale> getExistingLocale(final ConnectorDefinition definition) {
    final Set<Locale> result = new HashSet<>();
    String defId = null;
    if (definition == null) {
        return result;
    }
    if (definition.eResource() == null) {
        defId = NamingUtils.toConnectorDefinitionFilename(definition.getId(), definition.getVersion(), false);
    } else {
        defId = URI.decode(definition.eResource().getURI().trimFileExtension().lastSegment());
    }
    try {
        for (final IResource r : store.getResource().members()) {
            if (r.getFileExtension() != null
                    && r.getFileExtension().equals("properties")) {
                final String resourceName = r.getName();
                if (resourceName.length() >= defId.length()) {
                    final String baseName = resourceName.substring(0,
                            defId.length());
                    if (baseName.equals(defId)) {
                        if (resourceName.substring(baseName.length())
                                .indexOf("_") != -1
                                && resourceName
                                        .substring(baseName.length())
                                        .indexOf(".") != -1) {
                            String language = resourceName
                                    .substring(baseName.length());
                            language = language.substring(1,
                                    language.lastIndexOf("."));
                            String country = null;
                            String variant = null;
                            if (language.indexOf("_") != -1) {
                                final String[] split = language.split("_");
                                language = split[0];
                                country = split[1];
                                if (split.length == 3) {
                                    variant = split[2];
                                }
                            }
                            result.add(new Locale(language,
                                    country == null ? "" : country,
                                    variant == null ? "" : variant));
                        }
                    }
                }
            }
        }
    } catch (final CoreException e) {
        BonitaStudioLog.error(e);
    }
    return result;
}
 

/**
 * Checks whether the given resource is a Java source file.
 *
 * @param resource
 *            The resource to check.
 * @return <code>true</code> if the given resource is a Java source file,
 *         <code>false</code> otherwise.
 */
public static boolean isJavaFile(IResource resource) {
    if (resource == null || (resource.getType() != IResource.FILE)) {
        return false;
    }
    String ex = resource.getFileExtension();
    return "java".equalsIgnoreCase(ex); //$NON-NLS-1$
}
 

/**
 * Answers whether the given resource is a Java file.
 * The resource must be a file whose file name ends with ".java",
 * or an extension defined as Java source.
 *
 * @param file the file to test
 * @return a <code>true<code> if the given resource is a Java file
 */
private boolean isJavaFile(IResource file) {
	return file != null
		&& file.getType() == IResource.FILE
		&& file.getFileExtension() != null
		&& JavaCore.isJavaLikeFileName(file.getName());
}
 

/**
 * Answers whether the given resource is a class file.
 * The resource must be a file whose file name ends with ".class".
 *
 * @param file the file to test
 * @return a <code>true<code> if the given resource is a class file
 */
private boolean isClassFile(IResource file) {
	return file != null
		&& file.getType() == IResource.FILE
		&& file.getFileExtension() != null
		&& file.getFileExtension().equalsIgnoreCase("class"); //$NON-NLS-1$
}
 

/**
 * Returns true if the resource has an extension of <code>jsp</code> or <code>
 * html</code> .
 *
 * Note that the resource need not be an IFile.
 */
public static boolean hasJspOrHtmlExtension(IResource resource) {
  String extension = resource.getFileExtension();
  return ("jsp".equalsIgnoreCase(extension) || "html".equalsIgnoreCase(extension));
}
 

/**
 * Returns the extension portion of the given resource.
 * 
 * @param resource
 *            the resource
 * @return the file extension, possibily the empty string
 */
private String getExtensionFor( IResource resource )
{
	String ext = resource.getFileExtension( );
	return ext == null ? "" : ext; //$NON-NLS-1$
}