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
017package org.jetbrains.jet.lang.diagnostics.rendering;
018
019import org.jetbrains.annotations.NotNull;
020import org.jetbrains.jet.lang.diagnostics.Diagnostic;
021
022public 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}