org.eclipse.jdt.internal.core.CancelableNameEnvironment.java Source code

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Here is the source code for org.eclipse.jdt.internal.core.CancelableNameEnvironment.java

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/*******************************************************************************
 * Copyright (c) 2004, 2016 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.core;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.WorkingCopyOwner;
import org.eclipse.jdt.internal.codeassist.ISearchRequestor;
import org.eclipse.jdt.internal.compiler.env.NameEnvironmentAnswer;
import org.eclipse.jdt.internal.compiler.problem.AbortCompilation;

public class CancelableNameEnvironment extends SearchableEnvironment implements INameEnvironmentWithProgress {
    private IProgressMonitor monitor;

    public CancelableNameEnvironment(JavaProject project, WorkingCopyOwner owner, IProgressMonitor monitor)
            throws JavaModelException {
        this(project, owner, monitor, false);
    }

    public CancelableNameEnvironment(JavaProject project, WorkingCopyOwner owner, IProgressMonitor monitor,
            boolean excludeTestCode) throws JavaModelException {
        super(project, owner, excludeTestCode);
        setMonitor(monitor);
    }

    private void checkCanceled() {
        if (this.monitor != null && this.monitor.isCanceled()) {
            if (NameLookup.VERBOSE)
                System.out.println(Thread.currentThread() + " CANCELLING LOOKUP "); //$NON-NLS-1$
            throw new AbortCompilation(true/*silent*/, new OperationCanceledException());
        }
    }

    @Override
    public void findPackages(char[] prefix, ISearchRequestor requestor) {
        checkCanceled();
        super.findPackages(prefix, requestor);
    }

    @Override
    public NameEnvironmentAnswer findType(char[] name, char[][] packageName) {
        checkCanceled();
        return super.findType(name, packageName);
    }

    @Override
    public NameEnvironmentAnswer findType(char[][] compoundTypeName) {
        checkCanceled();
        return super.findType(compoundTypeName);
    }

    @Override
    public NameEnvironmentAnswer findType(char[] typeName, char[][] packageName, boolean searchWithSecondaryTypes,
            char[] moduleName) {
        return findType(typeName, packageName, moduleName);
    }

    @Override
    public void findTypes(char[] prefix, boolean findMembers, boolean camelCaseMatch, int searchFor,
            ISearchRequestor storage, IProgressMonitor progressMonitor) {
        checkCanceled();
        super.findTypes(prefix, findMembers, camelCaseMatch, searchFor, storage, progressMonitor);
    }

    @Override
    public void setMonitor(IProgressMonitor monitor) {
        this.monitor = monitor;
    }
}