001    /*
002     * Copyright 2010-2015 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.kotlin.cli.common.messages;
018    
019    import com.google.common.base.Predicate;
020    import org.jetbrains.annotations.NotNull;
021    
022    public class FilteringMessageCollector implements MessageCollector {
023        private final MessageCollector messageCollector;
024        private final Predicate<CompilerMessageSeverity> decline;
025    
026        public FilteringMessageCollector(@NotNull MessageCollector messageCollector, @NotNull Predicate<CompilerMessageSeverity> decline) {
027            this.messageCollector = messageCollector;
028            this.decline = decline;
029        }
030    
031        @Override
032        public void clear() {
033            messageCollector.clear();
034        }
035    
036        @Override
037        public void report(
038                @NotNull CompilerMessageSeverity severity, @NotNull String message, @NotNull CompilerMessageLocation location
039        ) {
040            if (!decline.apply(severity)) {
041                messageCollector.report(severity, message, location);
042            }
043        }
044    
045        @Override
046        public boolean hasErrors() {
047            return messageCollector.hasErrors();
048        }
049    }