search/org/eclipse/jdt/internal/core/search/indexing/AddClassFileToIndex.java

package org.eclipse.jdt.internal.core.search.indexing;

/*
 * (c) Copyright IBM Corp. 2000, 2001.
 * All Rights Reserved.
 */

import org.eclipse.core.resources.*;

import org.eclipse.jdt.internal.core.index.*;
import org.eclipse.jdt.internal.core.search.processing.*;
import org.eclipse.jdt.internal.core.index.impl.*;

import java.io.*;

import org.eclipse.core.runtime.IPath;

class AddClassFileToIndex implements IJob {
	IFile resource;
	IndexManager manager;
	IResource indexedContainer;
	byte[] contents;
	public AddClassFileToIndex(
		IFile resource,
		IndexManager manager,
		IResource indexedContainer) {
		this.resource = resource;
		this.manager = manager;
		this.indexedContainer = indexedContainer;
	}
	public boolean belongsTo(String jobFamily) {
		return jobFamily.equals(this.indexedContainer.getProject().getName());
	}
	public boolean execute() {
		try {
			IIndex index = manager.getIndex(this.indexedContainer.getFullPath());
			if (!resource.isLocal(IResource.DEPTH_ZERO)) {
				return FAILED;
			}
			/* ensure no concurrent write access to index */
			if (index == null)
				return COMPLETE;
			ReadWriteMonitor monitor = manager.getMonitorFor(index);
			if (monitor == null)
				return COMPLETE; // index got deleted since acquired
			try {
				monitor.enterWrite(); // ask permission to write
				byte[] contents = this.getContents();
				if (contents == null)
					return FAILED;
				index.add(new IFileDocument(resource, contents), new BinaryIndexer(true));
			} finally {
				monitor.exitWrite(); // free write lock
			}
		} catch (IOException e) {
			return FAILED;
		}
		return COMPLETE;
	}
	private byte[] getContents() {
		if (this.contents == null)
			this.initializeContents();
		return this.contents;
	}
	public void initializeContents() {
		if (!resource.isLocal(IResource.DEPTH_ZERO)) {
			return;
		} else {
			try {
				IPath location = resource.getLocation();
				if (location != null) {
					;
					this.contents =
						org.eclipse.jdt.internal.compiler.util.Util.getFileByteContent(
							resource.getLocation().toFile());
				}
			} catch (IOException e) {
			}
		}
	}
	public String toString() {
		return "indexing " + resource.getFullPath(); //$NON-NLS-1$
	}
}