added draft changes for Auth API

Author: tanya732

src/main/java/com/auth0/net/Response.java

@@ -23,4 +23,8 @@ public interface Response<T> {
      * @return the HTTP status code.
      */
     int getStatusCode();
+
+    TokenQuotaBucket getClientQuotaLimit();
+
+    TokenQuotaBucket getOrganizationQuotaLimit();
 }

src/main/java/com/auth0/net/ResponseImpl.java

@@ -29,4 +29,62 @@ public T getBody() {
     public int getStatusCode() {
         return statusCode;
     }
+
+    @Override
+    public TokenQuotaBucket getClientQuotaLimit() {
+        String quotaHeader = headers.get("X-Quota-Client-Limit");
+        if (quotaHeader != null) {
+            return parseQuota(quotaHeader);
+        }
+        return null;
+    }
+
+    @Override
+    public TokenQuotaBucket getOrganizationQuotaLimit() {
+        String quotaHeader = headers.get("X-Quota-Organization-Limit");
+        if (quotaHeader != null) {
+            return parseQuota(quotaHeader);
+        }
+        return null;
+    }
+
+    public static TokenQuotaBucket parseQuota(String tokenQuota) {
+
+        TokenQuota perHour = null;
+        TokenQuota perDay = null;
+
+        String[] parts = tokenQuota.split(",");
+        for (String part : parts) {
+            String[] attributes = part.split(";");
+            int quota = 0, remaining = 0, time = 0;
+
+            for (String attribute : attributes) {
+                String[] keyValue = attribute.split("=");
+                if (keyValue.length != 2) continue;
+
+                String key = keyValue[0].trim();
+                String value = keyValue[1].trim();
+
+                switch (key) {
+                    case "q":
+                        quota = Integer.parseInt(value);
+                        break;
+                    case "r":
+                        remaining = Integer.parseInt(value);
+                        break;
+                    case "t":
+                        time = Integer.parseInt(value);
+                        break;
+                }
+            }
+
+            if (attributes[0].contains("per_hour")) {
+                perHour = new TokenQuota(quota, remaining, time);
+            } else if (attributes[0].contains("per_day")) {
+                perDay = new TokenQuota(quota, remaining, time);
+            }
+        }
+
+        return new TokenQuotaBucket(perHour, perDay);
+    }
 }

src/main/java/com/auth0/net/TokenQuota.java

@@ -0,0 +1,25 @@
+package com.auth0.net;
+
+public class TokenQuota {
+    private int quota;
+    private int remaining;
+    private int time;
+
+    public TokenQuota(int quota, int remaining, int time) {
+        this.quota = quota;
+        this.remaining = remaining;
+        this.time = time;
+    }
+
+    public int getQuota() {
+        return quota;
+    }
+
+    public int getRemaining() {
+        return remaining;
+    }
+
+    public int getTime() {
+        return time;
+    }
+}

src/main/java/com/auth0/net/TokenQuotaBucket.java

@@ -0,0 +1,19 @@
+package com.auth0.net;
+
+public class TokenQuotaBucket {
+    private TokenQuota perHour;
+    private TokenQuota perDay;
+
+    public TokenQuotaBucket(TokenQuota perHour, TokenQuota perDay) {
+        this.perHour = perHour;
+        this.perDay = perDay;
+    }
+
+    public TokenQuota getPerHour() {
+        return perHour;
+    }
+
+    public TokenQuota getPerDay() {
+        return perDay;
+    }
+}