001    /*
002     * Copyright 2010-2013 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.jet.lang.diagnostics.rendering;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.jet.lang.diagnostics.Diagnostic;
021    
022    public class DispatchingDiagnosticRenderer implements DiagnosticRenderer<Diagnostic> {
023        private final DiagnosticFactoryToRendererMap[] maps;
024    
025        public DispatchingDiagnosticRenderer(DiagnosticFactoryToRendererMap... maps) {
026            this.maps = maps;
027        }
028    
029        @NotNull
030        @Override
031        public String render(@NotNull Diagnostic diagnostic) {
032            for (DiagnosticFactoryToRendererMap map : maps) {
033                DiagnosticRenderer renderer = map.get(diagnostic.getFactory());
034                if (renderer != null) {
035                    //noinspection unchecked
036                    return renderer.render(diagnostic);
037                }
038            }
039            throw new IllegalArgumentException("Don't know how to render diagnostic of type " + diagnostic.getFactory().getName());
040        }
041    }