Example usage for org.eclipse.jdt.core ClasspathContainerInitializer getFailureContainer

Introduction

In this page you can find the example usage for org.eclipse.jdt.core ClasspathContainerInitializer getFailureContainer.

Prototype

public IClasspathContainer getFailureContainer(final IPath containerPath, IJavaProject project) 

Source Link

Document

Returns a classpath container that is used after this initializer failed to bind a classpath container to a IClasspathContainer for the given project.

Usage

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

License:Open Source License

IClasspathContainer initializeContainer(IJavaProject project, IPath containerPath) throws JavaModelException {

    IProgressMonitor monitor = this.batchContainerInitializationsProgress;
    if (monitor != null && monitor.isCanceled())
        throw new OperationCanceledException();

    IClasspathContainer container = null;
    final ClasspathContainerInitializer initializer = JavaCore
            .getClasspathContainerInitializer(containerPath.segment(0));
    if (initializer != null) {
        if (CP_RESOLVE_VERBOSE)
            verbose_triggering_container_initialization(project, containerPath, initializer);
        if (CP_RESOLVE_VERBOSE_ADVANCED)
            verbose_triggering_container_initialization_invocation_trace();
        PerformanceStats stats = null;/*from w  w w. jav  a2  s  .co  m*/
        if (JavaModelManager.PERF_CONTAINER_INITIALIZER) {
            stats = PerformanceStats.getStats(JavaModelManager.CONTAINER_INITIALIZER_PERF, this);
            stats.startRun(containerPath + " of " + project.getPath()); //$NON-NLS-1$
        }
        containerPut(project, containerPath, CONTAINER_INITIALIZATION_IN_PROGRESS); // avoid initialization cycles
        boolean ok = false;
        try {
            if (monitor != null)
                monitor.subTask(Messages.bind(Messages.javamodel_configuring,
                        initializer.getDescription(containerPath, project)));

            // let OperationCanceledException go through
            // (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=59363)
            initializer.initialize(containerPath, project);

            if (monitor != null)
                monitor.subTask(""); //$NON-NLS-1$

            // retrieve value (if initialization was successful)
            container = containerBeingInitializedGet(project, containerPath);
            if (container == null
                    && containerGet(project, containerPath) == CONTAINER_INITIALIZATION_IN_PROGRESS) {
                // initializer failed to do its job: redirect to the failure container
                container = initializer.getFailureContainer(containerPath, project);
                if (container == null) {
                    if (CP_RESOLVE_VERBOSE || CP_RESOLVE_VERBOSE_FAILURE)
                        verbose_container_null_failure_container(project, containerPath, initializer);
                    return null; // break cycle
                }
                if (CP_RESOLVE_VERBOSE || CP_RESOLVE_VERBOSE_FAILURE)
                    verbose_container_using_failure_container(project, containerPath, initializer);
                containerPut(project, containerPath, container);
            }
            ok = true;
        } catch (CoreException e) {
            if (e instanceof JavaModelException) {
                throw (JavaModelException) e;
            } else {
                throw new JavaModelException(e);
            }
        } catch (RuntimeException e) {
            if (JavaModelManager.CP_RESOLVE_VERBOSE || CP_RESOLVE_VERBOSE_FAILURE)
                e.printStackTrace();
            throw e;
        } catch (Error e) {
            if (JavaModelManager.CP_RESOLVE_VERBOSE || CP_RESOLVE_VERBOSE_FAILURE)
                e.printStackTrace();
            throw e;
        } finally {
            if (JavaModelManager.PERF_CONTAINER_INITIALIZER) {
                stats.endRun();
            }
            if (!ok) {
                // just remove initialization in progress and keep previous session container so as to avoid a full build
                // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=92588
                containerRemoveInitializationInProgress(project, containerPath);
                if (CP_RESOLVE_VERBOSE || CP_RESOLVE_VERBOSE_FAILURE)
                    verbose_container_initialization_failed(project, containerPath, container, initializer);
            }
        }
        if (CP_RESOLVE_VERBOSE_ADVANCED)
            verbose_container_value_after_initialization(project, containerPath, container);
    } else {
        // create a dummy initializer and get the default failure container
        container = (new ClasspathContainerInitializer() {
            public void initialize(IPath path, IJavaProject javaProject) throws CoreException {
                // not used
            }
        }).getFailureContainer(containerPath, project);
        if (CP_RESOLVE_VERBOSE_ADVANCED || CP_RESOLVE_VERBOSE_FAILURE)
            verbose_no_container_initializer_found(project, containerPath);
    }
    return container;
}

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