// Copyright (C) 2016 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.google.gitiles;

import com.google.common.base.MoreObjects;

import com.google.common.collect.ImmutableMap;

import java.io.IOException;

import java.io.InputStream;

import java.util.Map;

import java.util.Properties;

public class MimeTypes {

public static final String ANY = "application/octet-stream";

private static final ImmutableMap<String, String> TYPES;

static {

Properties p = new Properties();

try (InputStream in = MimeTypes.class.getResourceAsStream("mime-types.properties")) {

p.load(in);

} catch (IOException e) {

throw new RuntimeException("Cannot load mime-types.properties", e);

}

ImmutableMap.Builder<String, String> m = ImmutableMap.builder();

for (Map.Entry<Object, Object> e : p.entrySet()) {

m.put(((String) e.getKey()).toLowerCase(), (String) e.getValue());

}

TYPES = m.build();

}

public static String getMimeType(String path) {

int d = path.lastIndexOf('.');

if (d == -1) {

return ANY;

}

String ext = path.substring(d + 1);

String type = TYPES.get(ext.toLowerCase());

return MoreObjects.firstNonNull(type, ANY);

}

private MimeTypes() {}

}