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Diffstat (limited to 'bundles/org.eclipse.team.core/src/org/eclipse/team/core/subscribers/ContentComparisonCriteria.java')
-rw-r--r--bundles/org.eclipse.team.core/src/org/eclipse/team/core/subscribers/ContentComparisonCriteria.java173
1 files changed, 0 insertions, 173 deletions
diff --git a/bundles/org.eclipse.team.core/src/org/eclipse/team/core/subscribers/ContentComparisonCriteria.java b/bundles/org.eclipse.team.core/src/org/eclipse/team/core/subscribers/ContentComparisonCriteria.java
deleted file mode 100644
index f5b4ac8ec..000000000
--- a/bundles/org.eclipse.team.core/src/org/eclipse/team/core/subscribers/ContentComparisonCriteria.java
+++ /dev/null
@@ -1,173 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2000, 2003 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Common Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- *
- * Contributors:
- * IBM Corporation - initial API and implementation
- *******************************************************************************/
-package org.eclipse.team.core.subscribers;
-
-import java.io.BufferedInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-
-import org.eclipse.core.resources.IStorage;
-import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.IProgressMonitor;
-import org.eclipse.team.core.TeamException;
-import org.eclipse.team.core.sync.IRemoteResource;
-import org.eclipse.team.internal.core.Policy;
-
-/**
- * A content comparison criteria that knows how to compare the content of <code>IStorage</code> and
- * <code>IRemoteResource</code> objects. The content comparison can be configured to ignore or
- * consider whitespace.
- *
- * @see org.eclipse.team.core.subscribers.ComparisonCriteria
- */
-public class ContentComparisonCriteria extends ComparisonCriteria {
-
- private boolean ignoreWhitespace = false;
-
- final public static String ID_IGNORE_WS = "org.eclipse.team.comparisoncriteria.content.ignore"; //$NON-NLS-1$
- final public static String ID_DONTIGNORE_WS = "org.eclipse.team.comparisoncriteria.content"; //$NON-NLS-1$
-
- public String getName() {
- return "Comparing content" + (ignoreWhitespace ? " ignore whitespace": "");
- }
-
- public String getId() {
- if(ignoreWhitespace) {
- return ID_IGNORE_WS;
- } else {
- return ID_DONTIGNORE_WS;
- }
- }
-
- public ContentComparisonCriteria(ComparisonCriteria[] preConditions, boolean ignoreWhitespace) {
- super(preConditions);
- this.ignoreWhitespace = ignoreWhitespace;
- }
-
- /**
- * Helper methods for comparisons that returns true if the resource contents are the same.
- *
- * If timestampDiff is true then the timestamps don't differ and there's no point checking the
- * contents.
- */
- public boolean compare(Object e1, Object e2, IProgressMonitor monitor) throws TeamException {
- try {
- monitor.beginTask(null, 100);
- if(checkPreConditions(e1, e2, Policy.subMonitorFor(monitor, 10))) {
- return true;
- }
-
- InputStream is1 = null;
- InputStream is2 = null;
- try {
- is1 = getContents(e1, Policy.subMonitorFor(monitor, 45));
- is2 = getContents(e2, Policy.subMonitorFor(monitor, 45));
- return contentsEqual(is1, is2, shouldIgnoreWhitespace());
- } finally {
- try {
- try {
- if (is1 != null) {
- is1.close();
- }
- } finally {
- if (is2 != null) {
- is2.close();
- }
- }
- } catch (IOException e) {
- // Ignore
- }
- }
- } finally {
- monitor.done();
- }
- }
-
- protected boolean shouldIgnoreWhitespace() {
- return ignoreWhitespace;
- }
-
- /**
- * Returns <code>true</code> if both input streams byte contents is identical.
- *
- * @param input1 first input to contents compare
- * @param input2 second input to contents compare
- * @return <code>true</code> if content is equal
- */
- private boolean contentsEqual(InputStream is1, InputStream is2, boolean ignoreWhitespace) {
- try {
- if (is1 == is2)
- return true;
-
- if (is1 == null && is2 == null) // no byte contents
- return true;
-
- if (is1 == null || is2 == null) // only one has contents
- return false;
-
- while (true) {
- int c1 = is1.read();
- while (shouldIgnoreWhitespace() && isWhitespace(c1)) c1 = is1.read();
- int c2 = is2.read();
- while (shouldIgnoreWhitespace() && isWhitespace(c2)) c2 = is2.read();
- if (c1 == -1 && c2 == -1)
- return true;
- if (c1 != c2)
- break;
-
- }
- } catch (IOException ex) {
- } finally {
- try {
- try {
- if (is1 != null) {
- is1.close();
- }
- } finally {
- if (is2 != null) {
- is2.close();
- }
- }
- } catch (IOException e) {
- // Ignore
- }
- }
- return false;
- }
-
- private boolean isWhitespace(int c) {
- if (c == -1) return false;
- return Character.isWhitespace((char)c);
- }
-
- private InputStream getContents(Object resource, IProgressMonitor monitor) throws TeamException {
- try {
- if (resource instanceof IStorage) {
- return new BufferedInputStream(((IStorage) resource).getContents());
- } else if(resource instanceof IRemoteResource) {
- IRemoteResource remote = (IRemoteResource)resource;
- if (!remote.isContainer()) {
- return new BufferedInputStream(remote.getContents(monitor));
- }
- }
- return null;
- } catch (CoreException e) {
- throw TeamException.asTeamException(e);
- }
- }
-
- /* (non-Javadoc)
- * @see org.eclipse.team.core.subscribers.ComparisonCriteria#usesFileContents()
- */
- public boolean usesFileContents() {
- return true;
- }
-}

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