diff options
Diffstat (limited to 'bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/util/Utilities.java')
-rw-r--r-- | bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/util/Utilities.java | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/util/Utilities.java b/bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/util/Utilities.java deleted file mode 100644 index 911c5e921c..0000000000 --- a/bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/util/Utilities.java +++ /dev/null @@ -1,140 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2001, 2006 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - * Jens Lukowski/Innoopract - initial renaming/restructuring - * - *******************************************************************************/ -package org.eclipse.wst.sse.core.internal.util; - - - -import java.io.BufferedInputStream; -import java.io.InputStream; - -import org.eclipse.wst.sse.core.internal.encoding.CodedIO; -import org.eclipse.wst.sse.core.internal.encoding.util.BufferedLimitedStream; - - - -public class Utilities { - - /** - * a common calculation in some of the parsing methods (e.g. in - * ContextRegion and IStructuredDocumentRegion) - */ - public static int calculateLengthDifference(String changes, int lengthToReplace) { - // determine the length by the text itself, or, if there is no text to - // insert (i.e. we are doing a delete) then calculate the length as - // a negative number to denote the amount to delete. - // For a straight insert, the selection Length will be zero. - int lengthDifference = 0; - if (changes == null) { - // the delete case - lengthDifference = 0 - lengthToReplace; - } - else { - lengthDifference = changes.length() - lengthToReplace; - } - if (Debug.debugStructuredDocument) { - System.out.println("lengthDifference: " + lengthDifference);//$NON-NLS-1$ - } - return lengthDifference; - } - - /** - * Returns true iff both parameters are not null and the object is within - * the array. Careful, this uses identity. Not good for basic strings. - */ - public static boolean contains(Object[] objectArray, Object object) { - boolean result = false; - // if object or objectArray is null, return false - if ((objectArray != null) && (object != null)) { - for (int i = 0; i < objectArray.length; i++) { - if (objectArray[i] == object) { - result = true; - break; - } - } - } - return result; - } - - public static boolean containsString(String[] objectArray, String object) { - boolean result = false; - // if object or objectArray is null, return false - if ((objectArray != null) && (object != null)) { - for (int i = 0; i < objectArray.length; i++) { - if (objectArray[i].equals(object)) { - result = true; - break; - } - } - } - return result; - } - - /** - * Ensures that an InputStream has mark/reset support, is readlimit is - * set, and that the stream is "limitable" (that is, reports "end of - * input" rather than allow going past mark). This is very specialized - * stream introduced to overcome - * https://bugs.eclipse.org/bugs/show_bug.cgi?id=67211. See also - * https://bugs.eclipse.org/bugs/show_bug.cgi?id=68565 - */ - public static InputStream getLimitedStream(InputStream original) { - if (original == null) - return null; - if (original instanceof BufferedLimitedStream) - return original; - return new BufferedLimitedStream(original, CodedIO.MAX_BUF_SIZE); - } - - /** - * <p> - * Ensures that an InputStream has mark/reset support. - * </p> - * <p> - * It's vital that a BufferedInputStream <b>not</b> be wrapped in another - * BufferedInputStream as each can preemptively consume <i>n</i> bytes - * (e.g. 2048) from the parent stream before any requests are made. The - * cascading effect is that the second/inner BufferedInputStream can never - * rewind itself to the first <i>n</i> bytes since they were already - * consumed by its parent. - * </p> - */ - public static InputStream getMarkSupportedStream(InputStream original) { - if (original == null) - return null; - if (original.markSupported()) - return original; - InputStream buffered = new BufferedInputStream(original, CodedIO.MAX_BUF_SIZE); - buffered.mark(CodedIO.MAX_MARK_SIZE); - return buffered; - } - - /** - * Used for log/trace messages. Id is assumed to be some form of a - * filename. See IModelManager. - */ - public static String makeShortId(Object id) { - if (id == null) - id = "NOID";//$NON-NLS-1$ - String whole = id.toString(); - String part = whole.substring(whole.lastIndexOf("/") + 1); //$NON-NLS-1$ - return "..." + part; //$NON-NLS-1$ - } - - - /** - * Utilities constructor comment. - */ - public Utilities() { - super(); - } -} |