Example usage for org.eclipse.jdt.core IJavaElement getParent

Introduction

In this page you can find the example usage for org.eclipse.jdt.core IJavaElement getParent.

Prototype

IJavaElement getParent();

Source Link

Document

Returns the element directly containing this element, or null if this element has no parent.

Usage

From source file:org.eclipse.edt.debug.core.java.filters.ClasspathEntryFilter.java

License:Open Source License

/**
 * Subclasses are free to override this to provide more specific caching.
 *//*from w w  w .j a  v  a 2  s.  c o  m*/
protected void processContainerEntry(IClasspathEntry entry, IJavaProject project,
        Map<String, Object> classMap) {
    if (project == null) {
        // Can't calulate the entry without an IJavaProject.
        return;
    }

    IPackageFragmentRoot[] roots = project.findPackageFragmentRoots(entry);
    for (IPackageFragmentRoot root : roots) {
        try {
            for (IJavaElement element : root.getChildren()) {
                if (element.getElementType() == IJavaElement.PACKAGE_FRAGMENT) {
                    try {
                        IPackageFragment pkg = (IPackageFragment) element;
                        StringBuilder pkgBuf = new StringBuilder(50);
                        IJavaElement current = pkg;
                        while (current != null && current.getElementType() == IJavaElement.PACKAGE_FRAGMENT) {
                            if (pkgBuf.length() > 0) {
                                pkgBuf.insert(0, '.');
                            }
                            pkgBuf.insert(0, current.getElementName());
                            current = current.getParent();
                        }

                        String pkgString = pkgBuf.toString();
                        IClassFile[] classes = pkg.getClassFiles();
                        for (IClassFile file : classes) {
                            String className = file.getElementName();
                            className = className.substring(0, className.length() - 6); // remove ".class"
                            StringBuilder buf = new StringBuilder(pkgString.length() + className.length() + 1);
                            buf.append(pkgString);
                            if (pkgString.length() > 0) {
                                buf.append('.');
                            }
                            buf.append(className);
                            classMap.put(buf.toString(), null);
                        }
                    } catch (JavaModelException jme) {
                        EDTDebugCorePlugin.log(jme);
                    }
                }
            }
        } catch (JavaModelException jme) {
            EDTDebugCorePlugin.log(jme);
        }
    }
}

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From source file:org.eclipse.edt.debug.core.java.filters.WorkspaceProjectClassFilter.java

License:Open Source License

protected void compilationUnitRemoved(IJavaElementDelta delta, ICompilationUnit cu) throws JavaModelException {
    if (cu.exists()) {
        for (IType type : cu.getAllTypes()) {
            commonClassesToFilter.remove(type.getFullyQualifiedName());
        }//from  www  .j a v  a2 s  . c o m
    } else {
        // It's already been deleted, so we can't get any of its children. We'll remove the main type, then iterate over the keys
        // to see if there's any inner classes to remove.
        StringBuilder buf = new StringBuilder(50);
        IJavaElement current = cu.getParent();
        while (current != null && current.getElementType() == IJavaElement.PACKAGE_FRAGMENT) {
            if (buf.length() > 0) {
                buf.insert(0, '.');
            }
            buf.insert(0, current.getElementName());
            current = current.getParent();
        }
        if (buf.length() > 0) {
            buf.append('.');
        }
        buf.append(cu.getElementName().substring(0, cu.getElementName().length() - 5)); // Remove ".java"
        commonClassesToFilter.remove(buf.toString());

        buf.append('$');
        String keyPrefix = buf.toString();
        for (Iterator<String> it = commonClassesToFilter.keySet().iterator(); it.hasNext();) {
            if (it.next().startsWith(keyPrefix)) {
                it.remove();
            }
        }
    }
}

---

From source file:org.eclipse.edt.debug.core.java.filters.WorkspaceProjectClassFilter.java

License:Open Source License

protected void packageFragmentRemoved(IJavaElementDelta delta, IPackageFragment fragment)
        throws JavaModelException {
    if (fragment.exists()) {
        for (ICompilationUnit cu : fragment.getCompilationUnits()) {
            compilationUnitRemoved(delta, cu);
        }// w w  w  .j  ava  2  s.  c  o m
    } else {
        // It's already been deleted, so we can't get any of its children. We'll iterate over the keys removing those inside this fragment.
        StringBuilder buf = new StringBuilder(50);
        IJavaElement current = fragment;
        while (current != null && current.getElementType() == IJavaElement.PACKAGE_FRAGMENT) {
            if (buf.length() > 0) {
                buf.insert(0, '.');
            }
            buf.insert(0, current.getElementName());
            current = current.getParent();
        }

        if (buf.length() > 0) {
            buf.append('.');
            String keyPrefix = buf.toString();
            for (Iterator<String> it = commonClassesToFilter.keySet().iterator(); it.hasNext();) {
                if (it.next().startsWith(keyPrefix)) {
                    it.remove();
                }
            }
        }
    }
}

---

From source file:org.eclipse.flux.jdt.services.NavigationService.java

License:Open Source License

public JSONObject computeNavigation(String username, String requestorResourcePath, int offset, int length) {
    try {//from  w w w.j a v  a2 s . com
        ICompilationUnit liveEditUnit = liveEditUnits.getLiveEditUnit(username, requestorResourcePath);
        if (liveEditUnit != null) {
            IJavaElement[] elements = liveEditUnit.codeSelect(offset, length);

            if (elements != null && elements.length > 0) {
                JSONObject result = new JSONObject();

                IJavaElement element = elements[0];
                IResource resource = element.getResource();

                //if the selected element corresponds to a resource in workspace, navigate to it
                if (resource != null && resource.getProject() != null) {
                    String projectName = resource.getProject().getName();
                    String resourcePath = resource.getProjectRelativePath().toString();

                    result.put("project", projectName);
                    result.put("resource", resourcePath);

                    if (element instanceof ISourceReference) {
                        ISourceRange nameRange = ((ISourceReference) element).getNameRange();
                        result.put("offset", nameRange.getOffset());
                        result.put("length", nameRange.getLength());
                    }

                    return result;
                }
                //walk up the java model until we reach a class file
                while (element != null && !(element instanceof IClassFile)) {
                    element = element.getParent();
                }

                if (element instanceof IClassFile) {
                    IClassFile classFile = (IClassFile) element;
                    ISourceRange sourceRange = classFile.getSourceRange();
                    if (sourceRange != null) {
                        String projectName = element.getJavaProject().getProject().getName();
                        String resourcePath = classFile.getParent().getElementName().replace('.', '/');
                        resourcePath = "classpath:/" + resourcePath + "/" + classFile.getElementName();

                        result.put("project", projectName);
                        result.put("resource", resourcePath);

                        return result;
                    }
                }
                //we don't know how to navigate to this element
            }
        }

    } catch (JavaModelException e) {
        e.printStackTrace();
    } catch (JSONException e) {
        e.printStackTrace();
    }
    return null;
}

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From source file:org.eclipse.fx.ide.jdt.ui.internal.refactoring.RefactoringUtil.java

License:Open Source License

/**
 * Build thh fully qualified name of a resource.
 * /*from  w  ww  . j  ava 2  s .c o m*/
 * @param resource
 *            resource
 * @return fully qualified name
 */
public static String buildFullyQualifiedName(IResource resource) {
    IJavaElement je = JavaCore.create(resource);
    if (je != null) {
        try {
            IJavaProject p = je.getJavaProject();
            IType t = p.findType(je.getParent().getElementName(),
                    je.getElementName().replace("." + resource.getFileExtension(), ""));
            if (t == null) {
                System.err.println("Unable to construct FQN from '" + je.getParent().getElementName() + "."
                        + je.getElementName().replace("." + resource.getFileExtension(), "") + "'");
                return "";
            }
            return t.getFullyQualifiedName();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            return "";
        }
    } else {
        return getNonJavaElementName(resource, resource.getName());
    }
}

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From source file:org.eclipse.gmt.modisco.jm2t.modelconverter.javamodisco.internal.core.DiscovererFactory.java

License:Open Source License

public IExtendedDiscover createDiscoverer(IJavaElement element) {
    int type = element.getElementType();
    switch (type) {
    case IJavaElement.JAVA_PROJECT:
        return new ExtendedDiscoverJavaModelFromJavaProject((IJavaProject) element);
    case IJavaElement.COMPILATION_UNIT:
        return new ExtendedDiscoverJavaModelFromCompilationUnit((ICompilationUnit) element);
    case IJavaElement.CLASS_FILE:
        return new ExtendedDiscoverJavaModelFromClassFile((IClassFile) element);
    case IJavaElement.TYPE:
        return createDiscoverer(element.getParent());
    case IJavaElement.PACKAGE_FRAGMENT:
        IPackageFragment packageFragment = (IPackageFragment) element;
        break;//from  w  w w. jav  a 2  s  .c om
    case IJavaElement.PACKAGE_FRAGMENT_ROOT:
        // src folder is selected
        IPackageFragmentRoot packageFragmentRoot = (IPackageFragmentRoot) element;
        return createDiscoverer(packageFragmentRoot.getParent());
    }
    return null;
}

---

From source file:org.eclipse.jdt.internal.core.CopyResourceElementsOperation.java

License:Open Source License

private IResource getResource(IJavaElement element) {
    if (element == null)
        return null;
    if (element.getElementType() == IJavaElement.PACKAGE_FRAGMENT) {
        String pkgName = element.getElementName();
        int firstDot = pkgName.indexOf('.');
        if (firstDot != -1) {
            element = ((IPackageFragmentRoot) element.getParent())
                    .getPackageFragment(pkgName.substring(0, firstDot));
        }/* www .  java  2  s.co  m*/
    }
    return element.getResource();
}

---

From source file:org.eclipse.jdt.internal.core.JavaProject.java

License:Open Source License

public boolean isOnClasspath(IJavaElement element) {
    IClasspathEntry[] rawClasspath;/*from w ww  . j a v a 2  s  .  co m*/
    try {
        rawClasspath = getRawClasspath();
    } catch (JavaModelException e) {
        return false; // not a Java project
    }
    int elementType = element.getElementType();
    boolean isPackageFragmentRoot = false;
    boolean isFolderPath = false;
    boolean isSource = false;
    switch (elementType) {
    case IJavaElement.JAVA_MODEL:
        return false;
    case IJavaElement.JAVA_PROJECT:
        break;
    case IJavaElement.PACKAGE_FRAGMENT_ROOT:
        isPackageFragmentRoot = true;
        break;
    case IJavaElement.PACKAGE_FRAGMENT:
        isFolderPath = !((IPackageFragmentRoot) element.getParent()).isArchive();
        break;
    case IJavaElement.COMPILATION_UNIT:
        isSource = true;
        break;
    default:
        isSource = element.getAncestor(IJavaElement.COMPILATION_UNIT) != null;
        break;
    }
    IPath elementPath = element.getPath();

    // first look at unresolved entries
    int length = rawClasspath.length;
    for (int i = 0; i < length; i++) {
        IClasspathEntry entry = rawClasspath[i];
        switch (entry.getEntryKind()) {
        case IClasspathEntry.CPE_LIBRARY:
        case IClasspathEntry.CPE_PROJECT:
        case IClasspathEntry.CPE_SOURCE:
            if (isOnClasspathEntry(elementPath, isFolderPath, isPackageFragmentRoot, entry))
                return true;
            break;
        }
    }

    // no need to go further for compilation units and elements inside a compilation unit
    // it can only be in a source folder, thus on the raw classpath
    if (isSource)
        return false;

    // https://bugs.eclipse.org/bugs/show_bug.cgi?id=304081
    // All the resolved classpath entries need to be considered, including the referenced classpath entries
    IClasspathEntry[] resolvedClasspath = null;
    try {
        resolvedClasspath = getResolvedClasspath();
    } catch (JavaModelException e) {
        return false; // Perhaps, not a Java project
    }

    for (int index = 0; index < resolvedClasspath.length; index++) {
        if (isOnClasspathEntry(elementPath, isFolderPath, isPackageFragmentRoot, resolvedClasspath[index]))
            return true;
    }

    return false;
}

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From source file:org.eclipse.jdt.internal.core.SourceMapper.java

License:Open Source License

/**
 * Returns the type with the given <code>typeName</code>.  Returns inner classes
 * as well./*  ww  w.  jav  a  2 s.c om*/
 */
protected IType getType(String typeName) {
    if (typeName.length() == 0) {
        IJavaElement classFile = this.binaryType.getParent();
        String classFileName = classFile.getElementName();
        StringBuffer newClassFileName = new StringBuffer();
        int lastDollar = classFileName.lastIndexOf('$');
        for (int i = 0; i <= lastDollar; i++)
            newClassFileName.append(classFileName.charAt(i));
        newClassFileName.append(Integer.toString(this.anonymousCounter));
        PackageFragment pkg = (PackageFragment) classFile.getParent();
        return new BinaryType(new ClassFile(pkg, newClassFileName.toString()), typeName);
    } else if (this.binaryType.getElementName().equals(typeName))
        return this.binaryType;
    else
        return this.binaryType.getType(typeName);
}

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From source file:org.eclipse.jem.internal.adapters.jdom.JavaReflectionSynchronizer.java

License:Open Source License

protected String getFullNameFromElement(IJavaElement element) {
    // TODO: may want to throw IllegalArgumentException here? 
    // if (element == null) throw new IllegalArgumentException("Java Element parameter may not be null");
    String name = element.getElementName();
    if (name.length() <= 5 || !name.substring(name.length() - 5).equals(".java")) { //$NON-NLS-1$
        // Should not be here, 
        Logger logger = JavaPlugin.getDefault().getLogger();
        if (logger.isLoggingLevel(Level.FINE))
            logger.log("Invalid .java file: " + name, Level.FINE); //$NON-NLS-1$
        // Make a guess, at worst case, nothing will come out of this.
        int index = name.lastIndexOf("."); //$NON-NLS-1$
        if (index >= 0)
            name = name.substring(0, index) + ".java"; // rename the extension to .java //$NON-NLS-1$
        else/*from w w  w  .j ava  2 s  .  co m*/
            name = name + ".java"; //$NON-NLS-1$
    }
    if (element.getParent().getElementName() == null || element.getParent().getElementName().length() == 0)
        return name.substring(0, name.length() - 5);
    else
        return element.getParent().getElementName() + "." + name.substring(0, name.length() - 5); //$NON-NLS-1$
}

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