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/*******************************************************************************
* Copyright (c) 2017 Red Hat Inc. 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:
* Lucas Bullen (Red Hat Inc.) - initial implementation
*******************************************************************************/
package org.eclipse.ui.internal.genericeditor;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;
import org.eclipse.jface.text.IDocumentExtension3;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.reconciler.IReconciler;
import org.eclipse.jface.text.reconciler.IReconcilerExtension;
import org.eclipse.jface.text.reconciler.IReconcilingStrategy;
public class CompositeReconciler implements IReconciler, IReconcilerExtension {
private List<IReconciler> fReconcilers;
public CompositeReconciler(List<IReconciler> reconcilers) {
fReconcilers = reconcilers.stream().filter(Objects::nonNull).collect(Collectors.toList());
}
@Override
public String getDocumentPartitioning() {
boolean defaultFound = false;
String[] types = (String[]) fReconcilers.stream()
.filter(IReconcilerExtension.class::isInstance)
.map(IReconcilerExtension.class::cast)
.map(IReconcilerExtension::getDocumentPartitioning)
.filter(Objects::nonNull)
.toArray();
for (String type : types) {
if (type.equals(IDocumentExtension3.DEFAULT_PARTITIONING)) {
defaultFound = true;
} else {
return type;
}
}
return defaultFound ? IDocumentExtension3.DEFAULT_PARTITIONING : null;
}
@Override
public void install(ITextViewer textViewer) {
for (IReconciler iReconciler : fReconcilers) {
iReconciler.install(textViewer);
}
}
@Override
public void uninstall() {
for (IReconciler iReconciler : fReconcilers) {
iReconciler.uninstall();
}
}
@Override
public IReconcilingStrategy getReconcilingStrategy(String contentType) {
List<IReconcilingStrategy> strategies = new ArrayList<>();
for (IReconciler iReconciler : fReconcilers) {
IReconcilingStrategy strategy = iReconciler.getReconcilingStrategy(contentType);
if(strategy != null) {
strategies.add(strategy);
}
}
if(strategies.size() == 1) {
return strategies.get(0);
}
return new CompositeReconcilerStrategy(strategies);
}
}
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