Android Open Source - android Media Type






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License

The source code is released under:

GNU General Public License

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Java Source Code

/*
 * Copyright (C) 2013 Square, Inc./*from  w  ww  .  ja va2s  .c o  m*/
 *
 * 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.squareup.okhttp;

import java.nio.charset.Charset;
import java.util.Locale;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * An <a href="http://tools.ietf.org/html/rfc2045">RFC 2045</a> Media Type,
 * appropriate to describe the content type of an HTTP request or response body.
 */
public final class MediaType {
  private static final String TOKEN = "([a-zA-Z0-9-!#$%&'*+.^_`{|}~]+)";
  private static final String QUOTED = "\"([^\"]*)\"";
  private static final Pattern TYPE_SUBTYPE = Pattern.compile(TOKEN + "/" + TOKEN);
  private static final Pattern PARAMETER = Pattern.compile(
      ";\\s*" + TOKEN + "=(?:" + TOKEN + "|" + QUOTED + ")");

  private final String mediaType;
  private final String type;
  private final String subtype;
  private final String charset;

  private MediaType(String mediaType, String type, String subtype, String charset) {
    this.mediaType = mediaType;
    this.type = type;
    this.subtype = subtype;
    this.charset = charset;
  }

  /**
   * Returns a media type for {@code string}, or null if {@code string} is not a
   * well-formed media type.
   */
  public static MediaType parse(String string) {
    Matcher typeSubtype = TYPE_SUBTYPE.matcher(string);
    if (!typeSubtype.lookingAt()) return null;
    String type = typeSubtype.group(1).toLowerCase(Locale.US);
    String subtype = typeSubtype.group(2).toLowerCase(Locale.US);

    String charset = null;
    Matcher parameter = PARAMETER.matcher(string);
    for (int s = typeSubtype.end(); s < string.length(); s = parameter.end()) {
      parameter.region(s, string.length());
      if (!parameter.lookingAt()) return null; // This is not a well-formed media type.

      String name = parameter.group(1);
      if (name == null || !name.equalsIgnoreCase("charset")) continue;
      if (charset != null) throw new IllegalArgumentException("Multiple charsets: " + string);
      charset = parameter.group(2) != null
          ? parameter.group(2)  // Value is a token.
          : parameter.group(3); // Value is a quoted string.
    }

    return new MediaType(string, type, subtype, charset);
  }

  /**
   * Returns the high-level media type, such as "text", "image", "audio",
   * "video", or "application".
   */
  public String type() {
    return type;
  }

  /**
   * Returns a specific media subtype, such as "plain" or "png", "mpeg",
   * "mp4" or "xml".
   */
  public String subtype() {
    return subtype;
  }

  /**
   * Returns the charset of this media type, or null if this media type doesn't
   * specify a charset.
   */
  public Charset charset() {
    return charset != null ? Charset.forName(charset) : null;
  }

  /**
   * Returns the charset of this media type, or {@code defaultValue} if this
   * media type doesn't specify a charset.
   */
  public Charset charset(Charset defaultValue) {
    return charset != null ? Charset.forName(charset) : defaultValue;
  }

  /**
   * Returns the encoded media type, like "text/plain; charset=utf-8",
   * appropriate for use in a Content-Type header.
   */
  @Override public String toString() {
    return mediaType;
  }

  @Override public boolean equals(Object o) {
    return o instanceof MediaType && ((MediaType) o).mediaType.equals(mediaType);
  }

  @Override public int hashCode() {
    return mediaType.hashCode();
  }
}




Java Source Code List

com.phonegap.helloworld.BuildConfig.java
com.phonegap.helloworld.HelloWorld.java
com.squareup.okhttp.Address.java
com.squareup.okhttp.ConnectionPool.java
com.squareup.okhttp.Connection.java
com.squareup.okhttp.Dispatcher.java
com.squareup.okhttp.Failure.java
com.squareup.okhttp.HttpResponseCache.java
com.squareup.okhttp.Job.java
com.squareup.okhttp.MediaType.java
com.squareup.okhttp.OkAuthenticator.java
com.squareup.okhttp.OkHttpClient.java
com.squareup.okhttp.OkResponseCache.java
com.squareup.okhttp.Request.java
com.squareup.okhttp.ResponseSource.java
com.squareup.okhttp.Response.java
com.squareup.okhttp.RouteDatabase.java
com.squareup.okhttp.Route.java
com.squareup.okhttp.TunnelRequest.java
com.squareup.okhttp.internal.AbstractOutputStream.java
com.squareup.okhttp.internal.Base64.java
com.squareup.okhttp.internal.DiskLruCache.java
com.squareup.okhttp.internal.Dns.java
com.squareup.okhttp.internal.FaultRecoveringOutputStream.java
com.squareup.okhttp.internal.NamedRunnable.java
com.squareup.okhttp.internal.Platform.java
com.squareup.okhttp.internal.StrictLineReader.java
com.squareup.okhttp.internal.Util.java
com.squareup.okhttp.internal.http.AbstractHttpInputStream.java
com.squareup.okhttp.internal.http.HeaderParser.java
com.squareup.okhttp.internal.http.HttpAuthenticator.java
com.squareup.okhttp.internal.http.HttpDate.java
com.squareup.okhttp.internal.http.HttpEngine.java
com.squareup.okhttp.internal.http.HttpTransport.java
com.squareup.okhttp.internal.http.HttpURLConnectionImpl.java
com.squareup.okhttp.internal.http.HttpsEngine.java
com.squareup.okhttp.internal.http.HttpsURLConnectionImpl.java
com.squareup.okhttp.internal.http.OkResponseCacheAdapter.java
com.squareup.okhttp.internal.http.Policy.java
com.squareup.okhttp.internal.http.RawHeaders.java
com.squareup.okhttp.internal.http.RequestHeaders.java
com.squareup.okhttp.internal.http.ResponseHeaders.java
com.squareup.okhttp.internal.http.RetryableOutputStream.java
com.squareup.okhttp.internal.http.RouteSelector.java
com.squareup.okhttp.internal.http.SpdyTransport.java
com.squareup.okhttp.internal.http.Transport.java
com.squareup.okhttp.internal.http.UnknownLengthHttpInputStream.java
com.squareup.okhttp.internal.spdy.ErrorCode.java
com.squareup.okhttp.internal.spdy.FrameReader.java
com.squareup.okhttp.internal.spdy.FrameWriter.java
com.squareup.okhttp.internal.spdy.HeadersMode.java
com.squareup.okhttp.internal.spdy.Hpack.java
com.squareup.okhttp.internal.spdy.Http20Draft06.java
com.squareup.okhttp.internal.spdy.IncomingStreamHandler.java
com.squareup.okhttp.internal.spdy.NameValueBlockReader.java
com.squareup.okhttp.internal.spdy.Ping.java
com.squareup.okhttp.internal.spdy.Settings.java
com.squareup.okhttp.internal.spdy.Spdy3.java
com.squareup.okhttp.internal.spdy.SpdyConnection.java
com.squareup.okhttp.internal.spdy.SpdyStream.java
com.squareup.okhttp.internal.spdy.Variant.java
com.squareup.okhttp.internal.tls.DistinguishedNameParser.java
com.squareup.okhttp.internal.tls.OkHostnameVerifier.java
org.apache.cordova.App.java
org.apache.cordova.AuthenticationToken.java
org.apache.cordova.BuildConfig.java
org.apache.cordova.CallbackContext.java
org.apache.cordova.Config.java
org.apache.cordova.CordovaActivity.java
org.apache.cordova.CordovaArgs.java
org.apache.cordova.CordovaChromeClient.java
org.apache.cordova.CordovaInterface.java
org.apache.cordova.CordovaPlugin.java
org.apache.cordova.CordovaResourceApi.java
org.apache.cordova.CordovaUriHelper.java
org.apache.cordova.CordovaWebViewClient.java
org.apache.cordova.CordovaWebView.java
org.apache.cordova.DirectoryManager.java
org.apache.cordova.DroidGap.java
org.apache.cordova.ExifHelper.java
org.apache.cordova.ExposedJsApi.java
org.apache.cordova.FileHelper.java
org.apache.cordova.IceCreamCordovaWebViewClient.java
org.apache.cordova.JSONUtils.java
org.apache.cordova.LOG.java
org.apache.cordova.LinearLayoutSoftKeyboardDetect.java
org.apache.cordova.NativeToJsMessageQueue.java
org.apache.cordova.PluginEntry.java
org.apache.cordova.PluginManager.java
org.apache.cordova.PluginResult.java
org.apache.cordova.ScrollEvent.java
org.apache.cordova.Whitelist.java