BadXmlBlockParser.java

/*
 * Copyright (C) 2015 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.android.ide.common.blame.parser.aapt;

import com.android.annotations.NonNull;
import com.android.ide.common.blame.Message;
import com.android.ide.common.blame.parser.util.OutputLineReader;
import com.android.ide.common.blame.parser.ParsingFailedException;
import com.android.utils.ILogger;

import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

class BadXmlBlockParser extends AbstractAaptOutputParser {

    private static final Pattern MSG_PATTERN = Pattern
            .compile("W/ResourceType\\(.*\\): Bad XML block: no root element node found");

    @Override
    public boolean parse(@NonNull String line, @NonNull OutputLineReader reader, @NonNull List<Message> messages, @NonNull ILogger logger)
            throws ParsingFailedException {
        Matcher m = MSG_PATTERN.matcher(line);
        if (!m.matches()) {
            return false;
        }
        // W/ResourceType(12345): Bad XML block: no root element node found.
        // Sadly there's NO filename reference; this error typically describes the error *after* this line.
        if (reader.getLineCount() == 1) {
            // This is the only error message: dump to console and quit.
            throw new ParsingFailedException();
        }
        // Continue: the real culprit is displayed next and should get a marker.
        return true;
    }
}