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 org.jetbrains.annotations.NotNull;
020    
021    import java.io.PrintStream;
022    
023    public class PrintingMessageCollector implements MessageCollector {
024        private final boolean verbose;
025        private final PrintStream errStream;
026        private final MessageRenderer messageRenderer;
027        private boolean hasErrors = false;
028    
029        public PrintingMessageCollector(@NotNull PrintStream errStream, @NotNull MessageRenderer messageRenderer, boolean verbose) {
030            this.verbose = verbose;
031            this.errStream = errStream;
032            this.messageRenderer = messageRenderer;
033        }
034    
035        @Override
036        public void clear() {
037            // Do nothing, messages are already reported
038        }
039    
040        @Override
041        public void report(
042                @NotNull CompilerMessageSeverity severity,
043                @NotNull String message,
044                @NotNull CompilerMessageLocation location
045        ) {
046            if (!verbose && CompilerMessageSeverity.VERBOSE.contains(severity)) return;
047    
048            hasErrors |= severity.isError();
049    
050            errStream.println(messageRenderer.render(severity, message, location));
051        }
052    
053        @Override
054        public boolean hasErrors() {
055            return hasErrors;
056        }
057    }