| /******************************************************************************* |
| * Copyright (c) 2004, 2008 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.core.internal.content; |
| |
| import java.io.*; |
| import org.eclipse.core.runtime.QualifiedName; |
| import org.eclipse.core.runtime.content.IContentDescription; |
| import org.eclipse.core.runtime.content.ITextContentDescriber; |
| |
| /** |
| * This class provides internal basis for text-based content describers. |
| * |
| * <p> |
| * Note: do not add protected/public members to this class if you don't intend to |
| * make them public API. |
| * </p> |
| * |
| * @see org.eclipse.core.runtime.content.XMLRootElementContentDescriber2 |
| * @since 3.0 |
| */ |
| public class TextContentDescriber implements ITextContentDescriber { |
| |
| private final static QualifiedName[] SUPPORTED_OPTIONS = {IContentDescription.BYTE_ORDER_MARK}; |
| |
| @Override |
| public int describe(Reader contents, IContentDescription description) throws IOException { |
| // we want to be pretty loose on detecting the text content type |
| return INDETERMINATE; |
| } |
| |
| @Override |
| public int describe(InputStream contents, IContentDescription description) throws IOException { |
| if (description == null || !description.isRequested(IContentDescription.BYTE_ORDER_MARK)) |
| return INDETERMINATE; |
| byte[] bom = Util.getByteOrderMark(contents); |
| if (bom != null) |
| description.setProperty(IContentDescription.BYTE_ORDER_MARK, bom); |
| // we want to be pretty loose on detecting the text content type |
| return INDETERMINATE; |
| } |
| |
| @Override |
| public QualifiedName[] getSupportedOptions() { |
| return SUPPORTED_OPTIONS; |
| } |
| } |