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

Introduction

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

Prototype

int PACKAGE_FRAGMENT

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Document

Constant representing a package fragment.

Usage

From source file:com.codenvy.ide.ext.java.server.internal.core.ModelUpdater.java

License:Open Source License

/**
 * Processing for an element that has been added:<ul>
 * <li>If the element is a project, do nothing, and do not process
 * children, as when a project is created it does not yet have any
 * natures - specifically a java nature.
 * <li>If the elemet is not a project, process it as added (see
 * <code>basicElementAdded</code>.
 * </ul>/* ww  w.j  a v  a2  s . co m*/
 */
protected void elementAdded(Openable element) {

    int elementType = element.getElementType();
    if (elementType == IJavaElement.JAVA_PROJECT) {
        // project add is handled by JavaProject.configure() because
        // when a project is created, it does not yet have a java nature
        addToParentInfo(element);
        this.projectsToUpdate.add(element);
    } else {
        addToParentInfo(element);

        // Force the element to be closed as it might have been opened
        // before the resource modification came in and it might have a new child
        // For example, in an IWorkspaceRunnable:
        // 1. create a package fragment p using a java model operation
        // 2. open package p
        // 3. add file X.java in folder p
        // When the resource delta comes in, only the addition of p is notified,
        // but the package p is already opened, thus its children are not recomputed
        // and it appears empty.
        close(element);
    }

    switch (elementType) {
    case IJavaElement.PACKAGE_FRAGMENT_ROOT:
        // when a root is added, and is on the classpath, the project must be updated
        this.projectsToUpdate.add(element.getJavaProject());
        break;
    case IJavaElement.PACKAGE_FRAGMENT:
        // get rid of package fragment cache
        JavaProject project = (JavaProject) element.getJavaProject();
        project.resetCaches();
        break;
    }
}

---

From source file:com.codenvy.ide.ext.java.server.internal.core.ModelUpdater.java

License:Open Source License

/**
 * Generic processing for a removed element:<ul>
 * <li>Close the element, removing its structure from the cache
 * <li>Remove the element from its parent's cache of children
 * <li>Add a REMOVED entry in the delta
 * </ul>/*  w  w  w . j  a v  a  2  s  .  com*/
 */
protected void elementRemoved(Openable element) {

    if (element.isOpen()) {
        close(element);
    }
    removeFromParentInfo(element);
    int elementType = element.getElementType();

    switch (elementType) {
    case IJavaElement.JAVA_MODEL:
        element.manager.getIndexManager().reset();
        break;
    case IJavaElement.JAVA_PROJECT:
        JavaModelManager manager = element.manager;
        JavaProject javaProject = (JavaProject) element;
        manager.removePerProjectInfo(javaProject, true /* remove external jar files indexes and timestamps*/);
        manager.containerRemove(javaProject);
        break;
    case IJavaElement.PACKAGE_FRAGMENT_ROOT:
        this.projectsToUpdate.add(element.getJavaProject());
        break;
    case IJavaElement.PACKAGE_FRAGMENT:
        // get rid of package fragment cache
        JavaProject project = (JavaProject) element.getJavaProject();
        project.resetCaches();
        break;
    }
}

---

From source file:com.codenvy.ide.ext.java.server.internal.core.NameLookup.java

License:Open Source License

/**
 * 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://  w  w  w .  jav  a2  s  . c om
 * - 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(Messages.path_mustBeAbsolute);
    }
    /*
     * TODO (jerome) 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 = ResourcesPlugin.getWorkspace().getRoot().findMember(path);
    if (possibleFragment == null) {
        //external jar
        for (int i = 0; i < this.packageFragmentRoots.length; i++) {
            IPackageFragmentRoot root = this.packageFragmentRoots[i];
            if (!root.isExternal()) {
                continue;
            }
            IPath rootPath = root.getPath();
            if (rootPath.isPrefixOf(path)) {
                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;
        }
        switch (fromFactory.getElementType()) {
        case IJavaElement.PACKAGE_FRAGMENT:
            return (IPackageFragment) fromFactory;
        case IJavaElement.JAVA_PROJECT:
            // 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());
                    Object defaultPkgRoot = this.packageFragments.get(CharOperation.NO_STRINGS);
                    if (defaultPkgRoot == null) {
                        return null;
                    }
                    if (defaultPkgRoot instanceof PackageFragmentRoot && defaultPkgRoot.equals(root))
                        return ((PackageFragmentRoot) root).getPackageFragment(CharOperation.NO_STRINGS);
                    else {
                        IPackageFragmentRoot[] roots = (IPackageFragmentRoot[]) defaultPkgRoot;
                        for (int i = 0; i < roots.length; i++) {
                            if (roots[i].equals(root)) {
                                return ((PackageFragmentRoot) root)
                                        .getPackageFragment(CharOperation.NO_STRINGS);
                            }
                        }
                    }
                }
            } catch (JavaModelException e) {
                return null;
            }
            return null;
        case IJavaElement.PACKAGE_FRAGMENT_ROOT:
            return ((PackageFragmentRoot) fromFactory).getPackageFragment(CharOperation.NO_STRINGS);
        }
    }
    return null;
}

---

From source file:com.codenvy.ide.ext.java.server.internal.core.search.JavaSearchScope.java

License:Open Source License

/**
 * Add an element to the java search scope.
 *
 * @param element/*from ww  w  .j  av a  2s . c  o m*/
 *         The element we want to add to current java search scope
 * @throws org.eclipse.jdt.core.JavaModelException
 *         May happen if some Java Model info are not available
 */
public void add(IJavaElement element) throws JavaModelException {
    IPath containerPath = null;
    String containerPathToString = null;
    PackageFragmentRoot root = null;
    int includeMask = SOURCES | APPLICATION_LIBRARIES | SYSTEM_LIBRARIES;
    switch (element.getElementType()) {
    case IJavaElement.JAVA_MODEL:
        // a workspace sope should be used
        break;
    case IJavaElement.JAVA_PROJECT:
        add((JavaProject) element, null, includeMask, new HashSet(2), new HashSet(2), null);
        break;
    case IJavaElement.PACKAGE_FRAGMENT_ROOT:
        root = (PackageFragmentRoot) element;
        IPath rootPath = root.internalPath();
        containerPath = root.getKind() == IPackageFragmentRoot.K_SOURCE ? root.getParent().getPath() : rootPath;
        containerPathToString = containerPath.getDevice() == null ? containerPath.toString()
                : containerPath.toOSString();
        IResource rootResource = root.resource();
        String projectPath = root.getJavaProject().getPath().toString();
        if (rootResource != null && rootResource.isAccessible()) {
            String relativePath = Util.relativePath(rootResource.getFullPath(), containerPath.segmentCount());
            add(projectPath, relativePath, containerPathToString, false/*not a package*/, null);
        } else {
            add(projectPath, "", containerPathToString, false/*not a package*/, null); //$NON-NLS-1$
        }
        break;
    case IJavaElement.PACKAGE_FRAGMENT:
        root = (PackageFragmentRoot) element.getParent();
        projectPath = root.getJavaProject().getPath().toString();
        if (root.isArchive()) {
            String relativePath = Util.concatWith(((PackageFragment) element).names, '/');
            containerPath = root.getPath();
            containerPathToString = containerPath.getDevice() == null ? containerPath.toString()
                    : containerPath.toOSString();
            add(projectPath, relativePath, containerPathToString, true/*package*/, null);
        } else {
            IResource resource = ((JavaElement) element).resource();
            if (resource != null) {
                if (resource.isAccessible()) {
                    containerPath = root.getKind() == IPackageFragmentRoot.K_SOURCE ? root.getParent().getPath()
                            : root.internalPath();
                } else {
                    // for working copies, get resource container full path
                    containerPath = resource.getParent().getFullPath();
                }
                containerPathToString = containerPath.getDevice() == null ? containerPath.toString()
                        : containerPath.toOSString();
                String relativePath = Util.relativePath(resource.getFullPath(), containerPath.segmentCount());
                add(projectPath, relativePath, containerPathToString, true/*package*/, null);
            }
        }
        break;
    default:
        // remember sub-cu (or sub-class file) java elements
        if (element instanceof IMember) {
            if (this.elements == null) {
                this.elements = new ArrayList();
            }
            this.elements.add(element);
        }
        root = (PackageFragmentRoot) element.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
        projectPath = root.getJavaProject().getPath().toString();
        String relativePath;
        if (root.getKind() == IPackageFragmentRoot.K_SOURCE) {
            containerPath = root.getParent().getPath();
            relativePath = Util.relativePath(getPath(element, false/*full path*/), 1/*remove project segment*/);
        } else {
            containerPath = root.internalPath();
            relativePath = getPath(element, true/*relative path*/).toString();
        }
        containerPathToString = containerPath.getDevice() == null ? containerPath.toString()
                : containerPath.toOSString();
        add(projectPath, relativePath, containerPathToString, false/*not a package*/, null);
    }

    if (root != null)
        addEnclosingProjectOrJar(
                root.getKind() == IPackageFragmentRoot.K_SOURCE ? root.getParent().getPath() : root.getPath());
}

---

From source file:com.codenvy.ide.ext.java.server.internal.core.search.JavaSearchScope.java

License:Open Source License

private IPath getPath(IJavaElement element, boolean relativeToRoot) {
    switch (element.getElementType()) {
    case IJavaElement.JAVA_MODEL:
        return Path.EMPTY;
    case IJavaElement.JAVA_PROJECT:
        return element.getPath();
    case IJavaElement.PACKAGE_FRAGMENT_ROOT:
        if (relativeToRoot)
            return Path.EMPTY;
        return element.getPath();
    case IJavaElement.PACKAGE_FRAGMENT:
        String relativePath = Util.concatWith(((PackageFragment) element).names, '/');
        return getPath(element.getParent(), relativeToRoot).append(new Path(relativePath));
    case IJavaElement.COMPILATION_UNIT:
    case IJavaElement.CLASS_FILE:
        return getPath(element.getParent(), relativeToRoot).append(new Path(element.getElementName()));
    default://from   ww  w .j a v a  2 s . co m
        return getPath(element.getParent(), relativeToRoot);
    }
}

---

From source file:com.codenvy.ide.ext.java.server.internal.core.search.matching.MatchLocator.java

License:Open Source License

private boolean filterEnum(SearchMatch match) {

    // filter org.apache.commons.lang.enum package for projects above 1.5
    // https://bugs.eclipse.org/bugs/show_bug.cgi?id=317264
    IJavaElement element = (IJavaElement) match.getElement();
    PackageFragment pkg = (PackageFragment) element.getAncestor(IJavaElement.PACKAGE_FRAGMENT);
    if (pkg != null) {
        // enum was found in org.apache.commons.lang.enum at index 5
        if (pkg.names.length == 5 && pkg.names[4].equals("enum")) { //$NON-NLS-1$
            if (this.options == null) {
                IJavaProject proj = (IJavaProject) pkg.getAncestor(IJavaElement.JAVA_PROJECT);
                String complianceStr = proj.getOption(CompilerOptions.OPTION_Source, true);
                if (CompilerOptions.versionToJdkLevel(complianceStr) >= ClassFileConstants.JDK1_5)
                    return true;
            } else if (this.options.sourceLevel >= ClassFileConstants.JDK1_5) {
                return true;
            }/*  w w  w  .  j a  v  a2s . com*/
        }
    }
    return false;
}

---

From source file:com.codenvy.ide.ext.java.server.internal.core.search.matching.MatchLocator.java

License:Open Source License

/**
 * Locates the package declarations corresponding to the search pattern.
 *///  w  w  w .j  a v  a  2s  .c  o  m
protected void locatePackageDeclarations(SearchPattern searchPattern, SearchParticipant participant,
        IJavaProject[] projects) throws CoreException {
    if (this.progressMonitor != null && this.progressMonitor.isCanceled()) {
        throw new OperationCanceledException();
    }
    if (searchPattern instanceof OrPattern) {
        SearchPattern[] patterns = ((OrPattern) searchPattern).patterns;
        for (int i = 0, length = patterns.length; i < length; i++) {
            locatePackageDeclarations(patterns[i], participant, projects);
        }
    } else if (searchPattern instanceof PackageDeclarationPattern) {
        IJavaElement focus = searchPattern.focus;
        if (focus != null) {
            if (encloses(focus)) {
                SearchMatch match = new PackageDeclarationMatch(
                        focus.getAncestor(IJavaElement.PACKAGE_FRAGMENT), SearchMatch.A_ACCURATE, -1, -1,
                        participant, focus.getResource());
                report(match);
            }
            return;
        }
        PackageDeclarationPattern pkgPattern = (PackageDeclarationPattern) searchPattern;
        boolean isWorkspaceScope = this.scope == JavaModelManager.getJavaModelManager().getWorkspaceScope();
        IPath[] scopeProjectsAndJars = isWorkspaceScope ? null : this.scope.enclosingProjectsAndJars();
        int scopeLength = isWorkspaceScope ? 0 : scopeProjectsAndJars.length;
        SimpleSet packages = new SimpleSet();
        for (int i = 0, length = projects.length; i < length; i++) {
            IJavaProject javaProject = projects[i];
            if (this.progressMonitor != null) {
                if (this.progressMonitor.isCanceled())
                    throw new OperationCanceledException();
                this.progressWorked++;
                if ((this.progressWorked % this.progressStep) == 0)
                    this.progressMonitor.worked(this.progressStep);
            }
            // Verify that project belongs to the scope
            if (!isWorkspaceScope) {
                boolean found = false;
                for (int j = 0; j < scopeLength; j++) {
                    if (javaProject.getPath().equals(scopeProjectsAndJars[j])) {
                        found = true;
                        break;
                    }
                }
                if (!found)
                    continue;
            }
            // Get all project package fragment names
            this.nameLookup = ((JavaProject) projects[i]).newNameLookup(this.workingCopies);
            IPackageFragment[] packageFragments = this.nameLookup
                    .findPackageFragments(new String(pkgPattern.pkgName), false, true);
            int pLength = packageFragments == null ? 0 : packageFragments.length;
            // Report matches avoiding duplicate names
            for (int p = 0; p < pLength; p++) {
                IPackageFragment fragment = packageFragments[p];
                if (packages.addIfNotIncluded(fragment) == null)
                    continue;
                if (encloses(fragment)) {
                    IResource resource = fragment.getResource();
                    if (resource == null) // case of a file in an external jar
                        resource = javaProject.getProject();
                    try {
                        if (encloses(fragment)) {
                            SearchMatch match = new PackageDeclarationMatch(fragment, SearchMatch.A_ACCURATE,
                                    -1, -1, participant, resource);
                            report(match);
                        }
                    } catch (JavaModelException e) {
                        throw e;
                    } catch (CoreException e) {
                        throw new JavaModelException(e);
                    }
                }
            }
        }
    }
}

---

From source file:com.codenvy.ide.ext.java.server.internal.core.search.matching.MatchLocator.java

License:Open Source License

public SearchMatch newDeclarationMatch(IJavaElement element, Binding binding, int accuracy, int offset,
        int length, SearchParticipant participant, IResource resource) {
    switch (element.getElementType()) {
    case IJavaElement.PACKAGE_FRAGMENT:
        return new PackageDeclarationMatch(element, accuracy, offset, length, participant, resource);
    case IJavaElement.TYPE:
        return new TypeDeclarationMatch(binding == null ? element : ((JavaElement) element).resolved(binding),
                accuracy, offset, length, participant, resource);
    case IJavaElement.FIELD:
        return new FieldDeclarationMatch(binding == null ? element : ((JavaElement) element).resolved(binding),
                accuracy, offset, length, participant, resource);
    case IJavaElement.METHOD:
        return new MethodDeclarationMatch(binding == null ? element : ((JavaElement) element).resolved(binding),
                accuracy, offset, length, participant, resource);
    case IJavaElement.LOCAL_VARIABLE:
        return new LocalVariableDeclarationMatch(element, accuracy, offset, length, participant, resource);
    case IJavaElement.PACKAGE_DECLARATION:
        return new PackageDeclarationMatch(element, accuracy, offset, length, participant, resource);
    case IJavaElement.TYPE_PARAMETER:
        return new TypeParameterDeclarationMatch(element, accuracy, offset, length, participant, resource);
    default:/*from  w  ww  . j a  va 2 s  . co m*/
        return null;
    }
}

---

From source file:com.codenvy.ide.ext.java.server.internal.core.search.matching.PackageReferenceLocator.java

License:Open Source License

protected int referenceType() {
    return IJavaElement.PACKAGE_FRAGMENT;
}

---

From source file:com.codenvy.ide.ext.java.server.internal.core.search.matching.PatternLocator.java

License:Open Source License

/**
 * Reports the match of the given reference.
 *///from   w w  w . j  a  v a2s .c o m
protected void matchReportReference(ASTNode reference, IJavaElement element, Binding elementBinding,
        int accuracy, MatchLocator locator) throws CoreException {
    this.match = null;
    int referenceType = referenceType();
    int offset = reference.sourceStart;
    switch (referenceType) {
    case IJavaElement.PACKAGE_FRAGMENT:
        this.match = locator.newPackageReferenceMatch(element, accuracy, offset,
                reference.sourceEnd - offset + 1, reference);
        break;
    case IJavaElement.TYPE:
        this.match = locator.newTypeReferenceMatch(element, elementBinding, accuracy, offset,
                reference.sourceEnd - offset + 1, reference);
        break;
    case IJavaElement.FIELD:
        this.match = locator.newFieldReferenceMatch(element, null, elementBinding, accuracy, offset,
                reference.sourceEnd - offset + 1, reference);
        break;
    case IJavaElement.LOCAL_VARIABLE:
        this.match = locator.newLocalVariableReferenceMatch(element, accuracy, offset,
                reference.sourceEnd - offset + 1, reference);
        break;
    case IJavaElement.TYPE_PARAMETER:
        this.match = locator.newTypeParameterReferenceMatch(element, accuracy, offset,
                reference.sourceEnd - offset + 1, reference);
        break;
    }
    if (this.match != null) {
        locator.report(this.match);
    }
}

---

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