Example usage for org.eclipse.jdt.core.search IJavaSearchConstants CANCEL_IF_NOT_READY_TO_SEARCH

Introduction

In this page you can find the example usage for org.eclipse.jdt.core.search IJavaSearchConstants CANCEL_IF_NOT_READY_TO_SEARCH.

Prototype

int CANCEL_IF_NOT_READY_TO_SEARCH

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Document

The search operation throws an org.eclipse.core.runtime.OperationCanceledException if the underlying indexer has not finished indexing the workspace.

Usage

From source file:bndtools.editor.components.ComponentNameProposalProvider.java

License:Open Source License

@Override
protected List<IContentProposal> doGenerateProposals(String contents, int position) {
    final String prefix = contents.substring(0, position);
    IJavaProject javaProject = searchContext.getJavaProject();
    final List<IContentProposal> result = new ArrayList<IContentProposal>(100);

    // Resource matches
    IProject project = javaProject.getProject();
    try {//from  w  ww  .  j a va 2s  .  co m
        project.accept(new IResourceProxyVisitor() {
            public boolean visit(IResourceProxy proxy) throws CoreException {
                if (proxy.getType() == IResource.FILE) {
                    if (proxy.getName().toLowerCase().startsWith(prefix)
                            && proxy.getName().toLowerCase().endsWith(XML_SUFFIX)) {
                        result.add(new ResourceProposal(proxy.requestResource()));
                    }
                    return false;
                }
                // Recurse into everything else
                return true;
            }
        }, 0);
    } catch (CoreException e) {
        Plugin.log(new Status(IStatus.ERROR, Plugin.PLUGIN_ID, 0, "Error searching for resources.", e));
    }

    // Class matches
    final IJavaSearchScope scope = SearchEngine.createJavaSearchScope(new IJavaElement[] { javaProject });
    final TypeNameRequestor requestor = new TypeNameRequestor() {
        @Override
        public void acceptType(int modifiers, char[] packageName, char[] simpleTypeName,
                char[][] enclosingTypeNames, String path) {
            if (!Flags.isAbstract(modifiers) && (Flags.isPublic(modifiers) || Flags.isProtected(modifiers))) {
                result.add(new JavaContentProposal(new String(packageName), new String(simpleTypeName), false));
            }
        };
    };
    final IRunnableWithProgress runnable = new IRunnableWithProgress() {
        public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
            try {
                new SearchEngine().searchAllTypeNames(null, 0, prefix.toCharArray(),
                        SearchPattern.R_PREFIX_MATCH, IJavaSearchConstants.CLASS, scope, requestor,
                        IJavaSearchConstants.CANCEL_IF_NOT_READY_TO_SEARCH, monitor);
            } catch (JavaModelException e) {
                throw new InvocationTargetException(e);
            }
        }
    };
    IRunnableContext runContext = searchContext.getRunContext();
    try {
        if (runContext != null) {
            runContext.run(false, false, runnable);
        } else {
            runnable.run(new NullProgressMonitor());
        }
    } catch (InvocationTargetException e) {
        Plugin.log(new Status(IStatus.ERROR, Plugin.PLUGIN_ID, 0, "Error searching for classes.",
                e.getTargetException()));
    } catch (InterruptedException e) {
        // Reset the interruption status and continue
        Thread.currentThread().interrupt();
    }
    return result;
}

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From source file:bndtools.editor.components.SvcInterfaceProposalProvider.java

License:Open Source License

@Override
protected List<IContentProposal> doGenerateProposals(String contents, int position) {
    final String prefix = contents.substring(0, position);
    final IJavaSearchScope scope = SearchEngine
            .createJavaSearchScope(new IJavaElement[] { searchContext.getJavaProject() });
    final ArrayList<IContentProposal> result = new ArrayList<IContentProposal>(100);
    final TypeNameRequestor typeNameRequestor = new TypeNameRequestor() {
        @Override/*from   w w w . j  ava 2s  .  c om*/
        public void acceptType(int modifiers, char[] packageName, char[] simpleTypeName,
                char[][] enclosingTypeNames, String path) {
            boolean isInterface = Flags.isInterface(modifiers);
            result.add(
                    new JavaContentProposal(new String(packageName), new String(simpleTypeName), isInterface));
        }
    };
    IRunnableWithProgress runnable = new IRunnableWithProgress() {
        public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
            try {
                new SearchEngine().searchAllTypeNames(null, 0, prefix.toCharArray(),
                        SearchPattern.R_PREFIX_MATCH, IJavaSearchConstants.CLASS_AND_INTERFACE, scope,
                        typeNameRequestor, IJavaSearchConstants.CANCEL_IF_NOT_READY_TO_SEARCH, monitor);
            } catch (JavaModelException e) {
                throw new InvocationTargetException(e);
            }
        }
    };

    try {
        if (searchContext.getRunContext() == null) {
            runnable.run(new NullProgressMonitor());
        } else {
            searchContext.getRunContext().run(false, false, runnable);
        }
    } catch (InvocationTargetException e) {
        Plugin.log(new Status(IStatus.ERROR, Plugin.PLUGIN_ID, 0, "Error searching for Java types.",
                e.getTargetException()));
        return Collections.emptyList();
    } catch (InterruptedException e) {
        // Reset interrupted status and return empty
        Thread.currentThread().interrupt();
        return Collections.emptyList();
    }
    return result;
}

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