| /******************************************************************************* |
| * Copyright (c) 2004, 2017 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.compare.internal.merge; |
| |
| import java.io.BufferedReader; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.util.ArrayList; |
| |
| import org.eclipse.compare.rangedifferencer.IRangeComparator; |
| |
| /** |
| * This implementation of IRangeComparator breaks an input stream into lines. |
| */ |
| class LineComparator implements IRangeComparator { |
| |
| private String[] fLines; |
| |
| public LineComparator(InputStream is, String encoding) throws IOException { |
| |
| BufferedReader br = new BufferedReader(new InputStreamReader(is, encoding)); |
| String line; |
| ArrayList<String> ar = new ArrayList<>(); |
| while ((line = br.readLine()) != null) { |
| ar.add(line); |
| } |
| // It is the responsibility of the caller to close the stream |
| fLines = ar.toArray(new String[ar.size()]); |
| } |
| |
| String getLine(int ix) { |
| return fLines[ix]; |
| } |
| |
| @Override |
| public int getRangeCount() { |
| return fLines.length; |
| } |
| |
| @Override |
| public boolean rangesEqual(int thisIndex, IRangeComparator other, |
| int otherIndex) { |
| String s1 = fLines[thisIndex]; |
| String s2 = ((LineComparator) other).fLines[otherIndex]; |
| return s1.equals(s2); |
| } |
| |
| @Override |
| public boolean skipRangeComparison(int length, int maxLength, IRangeComparator other) { |
| return false; |
| } |
| } |