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37 changes: 0 additions & 37 deletions
37
Meatspace/src/main/java/com/romainpiel/lib/gif/GIFUtils.java
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28 changes: 28 additions & 0 deletions
28
Meatspace/src/main/java/com/romainpiel/lib/utils/StringUtils.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| package com.romainpiel.lib.utils; | ||
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| import java.util.Collection; | ||
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| /** | ||
| * Meatspace | ||
| * User: romainpiel | ||
| * Date: 28/08/2013 | ||
| * Time: 11:50 | ||
| */ | ||
| public class StringUtils { | ||
|
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| /** | ||
| * Utility method to build a [spearator] separated string of a collection | ||
| * @param collection collection to read | ||
| * @param separator separator | ||
| * @param <E> generic parameter of the collection | ||
| * @return a string representation of the collection using the given separator | ||
| */ | ||
| public static <E> String join(Collection<E> collection, String separator) { | ||
| StringBuilder result = new StringBuilder(); | ||
| for(E object : collection) { | ||
| result.append(object.toString()); | ||
| result.append(separator); | ||
| } | ||
| return result.length() > 0 ? result.substring(0, result.length() - 1): ""; | ||
| } | ||
| } |
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91 changes: 91 additions & 0 deletions
91
Meatspace/src/main/java/com/romainpiel/model/GifMedia.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| package com.romainpiel.model; | ||
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| import android.util.Base64; | ||
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| import com.google.gson.JsonDeserializationContext; | ||
| import com.google.gson.JsonDeserializer; | ||
| import com.google.gson.JsonElement; | ||
| import com.google.gson.JsonParseException; | ||
| import com.romainpiel.lib.utils.Debug; | ||
| import com.romainpiel.lib.utils.StringUtils; | ||
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| import java.io.UnsupportedEncodingException; | ||
| import java.lang.reflect.Type; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.regex.Matcher; | ||
| import java.util.regex.Pattern; | ||
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| /** | ||
| * MeatspaceProject | ||
| * User: romainpiel | ||
| * Date: 08/12/2013 | ||
| * Time: 09:13 | ||
| */ | ||
| public class GifMedia { | ||
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| private static final String GIF_PREFIX = "data:image/gif;base64,"; | ||
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| private byte[] bytes; | ||
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| public byte[] getBytes() { | ||
| return bytes; | ||
| } | ||
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| public static JsonDeserializer<GifMedia> getDeserializer() { | ||
| return new JsonDeserializer<GifMedia>() { | ||
| @Override | ||
| public GifMedia deserialize(JsonElement jsonElement, Type type, JsonDeserializationContext jsonDeserializationContext) throws JsonParseException { | ||
| String raw = jsonElement.getAsString(); | ||
| GifMedia result = new GifMedia(); | ||
| result.bytes = mediaToGIFbytes(raw); | ||
| return result; | ||
| } | ||
| }; | ||
| } | ||
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| public static String mediaFromGIFbytes(byte[] bytes) { | ||
| if (bytes == null) { | ||
| return null; | ||
| } | ||
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| String result = null; | ||
| try { | ||
| result = GIF_PREFIX + new String(Base64.encode(bytes, Base64.DEFAULT), "UTF-8"); | ||
| } catch (UnsupportedEncodingException e) { | ||
| Debug.out(e); | ||
| } | ||
| return result; | ||
| } | ||
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| public static byte[] mediaToGIFbytes(String media) { | ||
| if (media == null) { | ||
| return null; | ||
| } | ||
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| try { | ||
| return Base64.decode(unescape(media), Base64.DEFAULT); | ||
| } catch (IllegalArgumentException e) { | ||
| return null; | ||
| } | ||
| } | ||
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| public static String unescape(String template) { | ||
| Map<String,String> tokens = new HashMap<String,String>(); | ||
| tokens.put(GIF_PREFIX, ""); | ||
| tokens.put("%2b", "+"); | ||
| tokens.put("%2f", "/"); | ||
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| String patternString = "(" + StringUtils.join(tokens.keySet(), "|") + ")"; | ||
| Pattern pattern = Pattern.compile(patternString); | ||
| Matcher matcher = pattern.matcher(template); | ||
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| StringBuffer sb = new StringBuffer(); | ||
| while(matcher.find()) { | ||
| matcher.appendReplacement(sb, tokens.get(matcher.group(1))); | ||
| } | ||
| matcher.appendTail(sb); | ||
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| return sb.toString(); | ||
| } | ||
| } |