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// Copyright (C) 2010 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.gerrit.client.ui;
import com.google.gerrit.client.Gerrit;
import com.google.gwtjsonrpc.common.AsyncCallback;
import com.google.gwtexpui.safehtml.client.RegexFindReplace;
import com.google.gwtexpui.safehtml.client.SafeHtml;
import com.google.gwtjsonrpc.common.VoidResult;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class CommentLinkProcessor {
public static SafeHtml apply(SafeHtml buf) {
try {
return buf.replaceAll(Gerrit.getConfig().getCommentLinks());
} catch (RuntimeException err) {
// One or more of the patterns isn't valid on this browser.
// Try to filter the list down and remove the invalid ones.
List<RegexFindReplace> safe = new ArrayList<RegexFindReplace>();
List<PatternError> bad = new ArrayList<PatternError>();
for (RegexFindReplace r : Gerrit.getConfig().getCommentLinks()) {
try {
buf.replaceAll(Collections.singletonList(r));
safe.add(r);
} catch (RuntimeException why) {
bad.add(new PatternError(r, why.getMessage()));
}
}
if (!bad.isEmpty()) {
StringBuilder msg = new StringBuilder();
msg.append("Invalid commentlink pattern(s):");
for (PatternError e : bad) {
msg.append("\n");
msg.append("\"");
msg.append(e.pattern.find());
msg.append("\": ");
msg.append(e.errorMessage);
}
Gerrit.SYSTEM_SVC.clientError(msg.toString(),
new AsyncCallback<VoidResult>() {
@Override
public void onFailure(Throwable caught) {
}
@Override
public void onSuccess(VoidResult result) {
}
});
}
try {
Gerrit.getConfig().setCommentLinks(safe);
return buf.replaceAll(safe);
} catch (RuntimeException err2) {
// To heck with it. The patterns passed individually above but
// failed as a group? Just drop them all and render without.
//
Gerrit.getConfig().setCommentLinks(null);
return buf;
}
}
}
private static class PatternError {
RegexFindReplace pattern;
String errorMessage;
PatternError(RegexFindReplace r, String w) {
pattern = r;
errorMessage = w;
}
}
private CommentLinkProcessor() {
}
}
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