Example usage for org.eclipse.jdt.internal.core.index IndexLocation isParticipantIndex

Introduction

In this page you can find the example usage for org.eclipse.jdt.internal.core.index IndexLocation isParticipantIndex.

Prototype

public boolean isParticipantIndex() 

Source Link

Usage

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

License:Open Source License

/**
 * Returns all the existing indexes for a list of index locations.
 * Note that this may trigger some indexes recreation work
 *
 * @param locations//w  w  w .j  av  a  2  s  . c om
 *         The list of of the index files path
 * @return The corresponding indexes list.
 */
public Index[] getIndexes(IndexLocation[] locations, IProgressMonitor progressMonitor) {
    // acquire the in-memory indexes on the fly
    int length = locations.length;
    Index[] locatedIndexes = new Index[length];
    int count = 0;
    if (this.javaLikeNamesChanged) {
        this.javaLikeNamesChanged = hasJavaLikeNamesChanged();
    }
    for (int i = 0; i < length; i++) {
        if (progressMonitor != null && progressMonitor.isCanceled()) {
            throw new OperationCanceledException();
        }
        // may trigger some index recreation work
        IndexLocation indexLocation = locations[i];
        Index index = getIndex(indexLocation);
        if (index == null) {
            // only need containerPath if the index must be built
            IPath containerPath = (IPath) this.indexLocations.keyForValue(indexLocation);
            if (containerPath != null) {// sanity check
                index = getIndex(containerPath, indexLocation, true /*reuse index file*/,
                        false /*do not create if none*/);
                if (index != null && this.javaLikeNamesChanged && !index.isIndexForJar()) {
                    // When a change in java like names extension has been detected, all
                    // non jar files indexes (i.e. containing sources) need to be rebuilt.
                    // see bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=286379
                    File indexFile = index.getIndexFile();
                    if (indexFile.exists()) {
                        if (DEBUG)
                            Util.verbose("Change in javaLikeNames - removing index file for " + containerPath); //$NON-NLS-1$
                        indexFile.delete();
                    }
                    this.indexes.put(indexLocation, null);
                    rebuildIndex(indexLocation, containerPath);
                    index = null;
                }
            } else {
                if (indexLocation.isParticipantIndex() && indexLocation.exists()) { // the index belongs to non-jdt search participant
                    try {
                        IPath container = getParticipantsContainer(indexLocation);
                        if (container != null) {
                            index = new Index(indexLocation, container.toOSString(), true /*reuse index file*/);
                            this.indexes.put(indexLocation, index);
                        }
                    } catch (IOException e) {
                        // ignore
                    }
                }
            }
        }
        if (index != null)
            locatedIndexes[count++] = index; // only consider indexes which are ready
    }
    if (this.javaLikeNamesChanged) {
        writeJavaLikeNamesFile();
        this.javaLikeNamesChanged = false;
    }
    if (count < length) {
        System.arraycopy(locatedIndexes, 0, locatedIndexes = new Index[count], 0, count);
    }
    return locatedIndexes;
}

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